Files
neovim/src/nvim/syntax.c
2017-09-30 11:44:50 +09:00

8251 lines
254 KiB
C

// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
/*
* syntax.c: code for syntax highlighting
*/
#include <assert.h>
#include <ctype.h>
#include <inttypes.h>
#include <stdbool.h>
#include <string.h>
#include <stdlib.h>
#include "nvim/vim.h"
#include "nvim/ascii.h"
#include "nvim/syntax.h"
#include "nvim/charset.h"
#include "nvim/eval.h"
#include "nvim/ex_cmds2.h"
#include "nvim/ex_docmd.h"
#include "nvim/fileio.h"
#include "nvim/fold.h"
#include "nvim/hashtab.h"
#include "nvim/indent_c.h"
#include "nvim/mbyte.h"
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/misc1.h"
#include "nvim/keymap.h"
#include "nvim/garray.h"
#include "nvim/option.h"
#include "nvim/os_unix.h"
#include "nvim/path.h"
#include "nvim/macros.h"
#include "nvim/regexp.h"
#include "nvim/screen.h"
#include "nvim/strings.h"
#include "nvim/syntax_defs.h"
#include "nvim/terminal.h"
#include "nvim/ui.h"
#include "nvim/os/os.h"
#include "nvim/os/time.h"
#include "nvim/api/private/helpers.h"
static bool did_syntax_onoff = false;
/// Structure that stores information about a highlight group.
/// The ID of a highlight group is also called group ID. It is the index in
/// the highlight_ga array PLUS ONE.
struct hl_group {
char_u *sg_name; ///< highlight group name
char_u *sg_name_u; ///< uppercase of sg_name
int sg_attr; ///< Screen attr @see ATTR_ENTRY
int sg_link; ///< link to this highlight group ID
int sg_set; ///< combination of flags in \ref SG_SET
scid_T sg_scriptID; ///< script in which the group was last set
// for terminal UIs
int sg_cterm; ///< "cterm=" highlighting attr
int sg_cterm_fg; ///< terminal fg color number + 1
int sg_cterm_bg; ///< terminal bg color number + 1
int sg_cterm_bold; ///< bold attr was set for light color
// for RGB UIs
int sg_gui; ///< "gui=" highlighting attributes
///< (combination of \ref HL_ATTRIBUTES)
RgbValue sg_rgb_fg; ///< RGB foreground color
RgbValue sg_rgb_bg; ///< RGB background color
RgbValue sg_rgb_sp; ///< RGB special color
uint8_t *sg_rgb_fg_name; ///< RGB foreground color name
uint8_t *sg_rgb_bg_name; ///< RGB background color name
uint8_t *sg_rgb_sp_name; ///< RGB special color name
};
/// \addtogroup SG_SET
/// @{
#define SG_CTERM 2 // cterm has been set
#define SG_GUI 4 // gui has been set
#define SG_LINK 8 // link has been set
/// @}
// highlight groups for 'highlight' option
static garray_T highlight_ga = GA_EMPTY_INIT_VALUE;
static inline struct hl_group * HL_TABLE(void)
{
return ((struct hl_group *)((highlight_ga.ga_data)));
}
#define MAX_HL_ID 20000 /* maximum value for a highlight ID. */
/* different types of offsets that are possible */
#define SPO_MS_OFF 0 /* match start offset */
#define SPO_ME_OFF 1 /* match end offset */
#define SPO_HS_OFF 2 /* highl. start offset */
#define SPO_HE_OFF 3 /* highl. end offset */
#define SPO_RS_OFF 4 /* region start offset */
#define SPO_RE_OFF 5 /* region end offset */
#define SPO_LC_OFF 6 /* leading context offset */
#define SPO_COUNT 7
/* Flags to indicate an additional string for highlight name completion. */
static int include_none = 0; /* when 1 include "nvim/None" */
static int include_default = 0; /* when 1 include "nvim/default" */
static int include_link = 0; /* when 2 include "nvim/link" and "clear" */
/// The "term", "cterm" and "gui" arguments can be any combination of the
/// following names, separated by commas (but no spaces!).
static char *(hl_name_table[]) =
{"bold", "standout", "underline", "undercurl",
"italic", "reverse", "inverse", "NONE"};
static int hl_attr_table[] =
{HL_BOLD, HL_STANDOUT, HL_UNDERLINE, HL_UNDERCURL, HL_ITALIC, HL_INVERSE,
HL_INVERSE, 0};
/*
* The patterns that are being searched for are stored in a syn_pattern.
* A match item consists of one pattern.
* A start/end item consists of n start patterns and m end patterns.
* A start/skip/end item consists of n start patterns, one skip pattern and m
* end patterns.
* For the latter two, the patterns are always consecutive: start-skip-end.
*
* A character offset can be given for the matched text (_m_start and _m_end)
* and for the actually highlighted text (_h_start and _h_end).
*/
typedef struct syn_pattern {
char sp_type; /* see SPTYPE_ defines below */
char sp_syncing; /* this item used for syncing */
int sp_flags; /* see HL_ defines below */
int sp_cchar; /* conceal substitute character */
struct sp_syn sp_syn; /* struct passed to in_id_list() */
short sp_syn_match_id; /* highlight group ID of pattern */
char_u *sp_pattern; /* regexp to match, pattern */
regprog_T *sp_prog; /* regexp to match, program */
syn_time_T sp_time;
int sp_ic; /* ignore-case flag for sp_prog */
short sp_off_flags; /* see below */
int sp_offsets[SPO_COUNT]; /* offsets */
short *sp_cont_list; /* cont. group IDs, if non-zero */
short *sp_next_list; /* next group IDs, if non-zero */
int sp_sync_idx; /* sync item index (syncing only) */
int sp_line_id; /* ID of last line where tried */
int sp_startcol; /* next match in sp_line_id line */
} synpat_T;
typedef struct syn_cluster_S {
char_u *scl_name; /* syntax cluster name */
char_u *scl_name_u; /* uppercase of scl_name */
short *scl_list; /* IDs in this syntax cluster */
} syn_cluster_T;
/*
* For the current state we need to remember more than just the idx.
* When si_m_endpos.lnum is 0, the items other than si_idx are unknown.
* (The end positions have the column number of the next char)
*/
typedef struct state_item {
int si_idx; /* index of syntax pattern or
KEYWORD_IDX */
int si_id; /* highlight group ID for keywords */
int si_trans_id; /* idem, transparency removed */
int si_m_lnum; /* lnum of the match */
int si_m_startcol; /* starting column of the match */
lpos_T si_m_endpos; /* just after end posn of the match */
lpos_T si_h_startpos; /* start position of the highlighting */
lpos_T si_h_endpos; /* end position of the highlighting */
lpos_T si_eoe_pos; /* end position of end pattern */
int si_end_idx; /* group ID for end pattern or zero */
int si_ends; /* if match ends before si_m_endpos */
int si_attr; /* attributes in this state */
long si_flags; /* HL_HAS_EOL flag in this state, and
* HL_SKIP* for si_next_list */
int si_seqnr; /* sequence number */
int si_cchar; /* substitution character for conceal */
short *si_cont_list; /* list of contained groups */
short *si_next_list; /* nextgroup IDs after this item ends */
reg_extmatch_T *si_extmatch; /* \z(...\) matches from start
* pattern */
} stateitem_T;
/*
* Struct to reduce the number of arguments to get_syn_options(), it's used
* very often.
*/
typedef struct {
int flags; /* flags for contained and transparent */
int keyword; /* TRUE for ":syn keyword" */
int *sync_idx; /* syntax item for "grouphere" argument, NULL
if not allowed */
char has_cont_list; /* TRUE if "cont_list" can be used */
short *cont_list; /* group IDs for "contains" argument */
short *cont_in_list; /* group IDs for "containedin" argument */
short *next_list; /* group IDs for "nextgroup" argument */
} syn_opt_arg_T;
typedef struct {
proftime_T total;
int count;
int match;
proftime_T slowest;
proftime_T average;
int id;
char_u *pattern;
} time_entry_T;
struct name_list {
int flag;
char *name;
};
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "syntax.c.generated.h"
#endif
/*
* An attribute number is the index in attr_table plus ATTR_OFF.
*/
#define ATTR_OFF 1
static char *(spo_name_tab[SPO_COUNT]) =
{"ms=", "me=", "hs=", "he=", "rs=", "re=", "lc="};
/* The sp_off_flags are computed like this:
* offset from the start of the matched text: (1 << SPO_XX_OFF)
* offset from the end of the matched text: (1 << (SPO_XX_OFF + SPO_COUNT))
* When both are present, only one is used.
*/
#define SPTYPE_MATCH 1 /* match keyword with this group ID */
#define SPTYPE_START 2 /* match a regexp, start of item */
#define SPTYPE_END 3 /* match a regexp, end of item */
#define SPTYPE_SKIP 4 /* match a regexp, skip within item */
#define SYN_ITEMS(buf) ((synpat_T *)((buf)->b_syn_patterns.ga_data))
#define NONE_IDX -2 /* value of sp_sync_idx for "NONE" */
/*
* Flags for b_syn_sync_flags:
*/
#define SF_CCOMMENT 0x01 /* sync on a C-style comment */
#define SF_MATCH 0x02 /* sync by matching a pattern */
#define SYN_STATE_P(ssp) ((bufstate_T *)((ssp)->ga_data))
#define MAXKEYWLEN 80 /* maximum length of a keyword */
/*
* The attributes of the syntax item that has been recognized.
*/
static int current_attr = 0; /* attr of current syntax word */
static int current_id = 0; /* ID of current char for syn_get_id() */
static int current_trans_id = 0; /* idem, transparency removed */
static int current_flags = 0;
static int current_seqnr = 0;
static int current_sub_char = 0;
/*
* Methods of combining two clusters
*/
#define CLUSTER_REPLACE 1 /* replace first list with second */
#define CLUSTER_ADD 2 /* add second list to first */
#define CLUSTER_SUBTRACT 3 /* subtract second list from first */
#define SYN_CLSTR(buf) ((syn_cluster_T *)((buf)->b_syn_clusters.ga_data))
/*
* Syntax group IDs have different types:
* 0 - 19999 normal syntax groups
* 20000 - 20999 ALLBUT indicator (current_syn_inc_tag added)
* 21000 - 21999 TOP indicator (current_syn_inc_tag added)
* 22000 - 22999 CONTAINED indicator (current_syn_inc_tag added)
* 23000 - 32767 cluster IDs (subtract SYNID_CLUSTER for the cluster ID)
*/
#define SYNID_ALLBUT MAX_HL_ID /* syntax group ID for contains=ALLBUT */
#define SYNID_TOP 21000 /* syntax group ID for contains=TOP */
#define SYNID_CONTAINED 22000 /* syntax group ID for contains=CONTAINED */
#define SYNID_CLUSTER 23000 /* first syntax group ID for clusters */
#define MAX_SYN_INC_TAG 999 /* maximum before the above overflow */
#define MAX_CLUSTER_ID (32767 - SYNID_CLUSTER)
/*
* Annoying Hack(TM): ":syn include" needs this pointer to pass to
* expand_filename(). Most of the other syntax commands don't need it, so
* instead of passing it to them, we stow it here.
*/
static char_u **syn_cmdlinep;
/*
* Another Annoying Hack(TM): To prevent rules from other ":syn include"'d
* files from leaking into ALLBUT lists, we assign a unique ID to the
* rules in each ":syn include"'d file.
*/
static int current_syn_inc_tag = 0;
static int running_syn_inc_tag = 0;
/*
* In a hashtable item "hi_key" points to "keyword" in a keyentry.
* This avoids adding a pointer to the hashtable item.
* KE2HIKEY() converts a var pointer to a hashitem key pointer.
* HIKEY2KE() converts a hashitem key pointer to a var pointer.
* HI2KE() converts a hashitem pointer to a var pointer.
*/
static keyentry_T dumkey;
#define KE2HIKEY(kp) ((kp)->keyword)
#define HIKEY2KE(p) ((keyentry_T *)((p) - (dumkey.keyword - (char_u *)&dumkey)))
#define HI2KE(hi) HIKEY2KE((hi)->hi_key)
// -V:HI2KE:782
/*
* To reduce the time spent in keepend(), remember at which level in the state
* stack the first item with "keepend" is present. When "-1", there is no
* "keepend" on the stack.
*/
static int keepend_level = -1;
static char msg_no_items[] = N_("No Syntax items defined for this buffer");
#define KEYWORD_IDX -1 /* value of si_idx for keywords */
#define ID_LIST_ALL (short *)-1 /* valid of si_cont_list for containing all
but contained groups */
static int next_seqnr = 1; /* value to use for si_seqnr */
/*
* The next possible match in the current line for any pattern is remembered,
* to avoid having to try for a match in each column.
* If next_match_idx == -1, not tried (in this line) yet.
* If next_match_col == MAXCOL, no match found in this line.
* (All end positions have the column of the char after the end)
*/
static int next_match_col; /* column for start of next match */
static lpos_T next_match_m_endpos; /* position for end of next match */
static lpos_T next_match_h_startpos; /* pos. for highl. start of next match */
static lpos_T next_match_h_endpos; /* pos. for highl. end of next match */
static int next_match_idx; /* index of matched item */
static long next_match_flags; /* flags for next match */
static lpos_T next_match_eos_pos; /* end of start pattn (start region) */
static lpos_T next_match_eoe_pos; /* pos. for end of end pattern */
static int next_match_end_idx; /* ID of group for end pattn or zero */
static reg_extmatch_T *next_match_extmatch = NULL;
/*
* A state stack is an array of integers or stateitem_T, stored in a
* garray_T. A state stack is invalid if it's itemsize entry is zero.
*/
#define INVALID_STATE(ssp) ((ssp)->ga_itemsize == 0)
#define VALID_STATE(ssp) ((ssp)->ga_itemsize != 0)
/*
* The current state (within the line) of the recognition engine.
* When current_state.ga_itemsize is 0 the current state is invalid.
*/
static win_T *syn_win; /* current window for highlighting */
static buf_T *syn_buf; /* current buffer for highlighting */
static synblock_T *syn_block; /* current buffer for highlighting */
static linenr_T current_lnum = 0; /* lnum of current state */
static colnr_T current_col = 0; /* column of current state */
static int current_state_stored = 0; /* TRUE if stored current state
* after setting current_finished */
static int current_finished = 0; /* current line has been finished */
static garray_T current_state /* current stack of state_items */
= GA_EMPTY_INIT_VALUE;
static short *current_next_list = NULL; /* when non-zero, nextgroup list */
static int current_next_flags = 0; /* flags for current_next_list */
static int current_line_id = 0; /* unique number for current line */
#define CUR_STATE(idx) ((stateitem_T *)(current_state.ga_data))[idx]
static int syn_time_on = FALSE;
# define IF_SYN_TIME(p) (p)
/*
* Start the syntax recognition for a line. This function is normally called
* from the screen updating, once for each displayed line.
* The buffer is remembered in syn_buf, because get_syntax_attr() doesn't get
* it. Careful: curbuf and curwin are likely to point to another buffer and
* window.
*/
void syntax_start(win_T *wp, linenr_T lnum)
{
synstate_T *p;
synstate_T *last_valid = NULL;
synstate_T *last_min_valid = NULL;
synstate_T *sp, *prev = NULL;
linenr_T parsed_lnum;
linenr_T first_stored;
int dist;
static int changedtick = 0; /* remember the last change ID */
current_sub_char = NUL;
/*
* After switching buffers, invalidate current_state.
* Also do this when a change was made, the current state may be invalid
* then.
*/
if (syn_block != wp->w_s
|| syn_buf != wp->w_buffer
|| changedtick != syn_buf->b_changedtick) {
invalidate_current_state();
syn_buf = wp->w_buffer;
syn_block = wp->w_s;
}
changedtick = syn_buf->b_changedtick;
syn_win = wp;
/*
* Allocate syntax stack when needed.
*/
syn_stack_alloc();
if (syn_block->b_sst_array == NULL)
return; /* out of memory */
syn_block->b_sst_lasttick = display_tick;
/*
* If the state of the end of the previous line is useful, store it.
*/
if (VALID_STATE(&current_state)
&& current_lnum < lnum
&& current_lnum < syn_buf->b_ml.ml_line_count) {
(void)syn_finish_line(FALSE);
if (!current_state_stored) {
++current_lnum;
(void)store_current_state();
}
/*
* If the current_lnum is now the same as "lnum", keep the current
* state (this happens very often!). Otherwise invalidate
* current_state and figure it out below.
*/
if (current_lnum != lnum)
invalidate_current_state();
} else
invalidate_current_state();
/*
* Try to synchronize from a saved state in b_sst_array[].
* Only do this if lnum is not before and not to far beyond a saved state.
*/
if (INVALID_STATE(&current_state) && syn_block->b_sst_array != NULL) {
/* Find last valid saved state before start_lnum. */
for (p = syn_block->b_sst_first; p != NULL; p = p->sst_next) {
if (p->sst_lnum > lnum)
break;
if (p->sst_lnum <= lnum && p->sst_change_lnum == 0) {
last_valid = p;
if (p->sst_lnum >= lnum - syn_block->b_syn_sync_minlines)
last_min_valid = p;
}
}
if (last_min_valid != NULL)
load_current_state(last_min_valid);
}
/*
* If "lnum" is before or far beyond a line with a saved state, need to
* re-synchronize.
*/
if (INVALID_STATE(&current_state)) {
syn_sync(wp, lnum, last_valid);
if (current_lnum == 1)
/* First line is always valid, no matter "minlines". */
first_stored = 1;
else
/* Need to parse "minlines" lines before state can be considered
* valid to store. */
first_stored = current_lnum + syn_block->b_syn_sync_minlines;
} else
first_stored = current_lnum;
/*
* Advance from the sync point or saved state until the current line.
* Save some entries for syncing with later on.
*/
if (syn_block->b_sst_len <= Rows)
dist = 999999;
else
dist = syn_buf->b_ml.ml_line_count / (syn_block->b_sst_len - Rows) + 1;
while (current_lnum < lnum) {
syn_start_line();
(void)syn_finish_line(FALSE);
++current_lnum;
/* If we parsed at least "minlines" lines or started at a valid
* state, the current state is considered valid. */
if (current_lnum >= first_stored) {
/* Check if the saved state entry is for the current line and is
* equal to the current state. If so, then validate all saved
* states that depended on a change before the parsed line. */
if (prev == NULL)
prev = syn_stack_find_entry(current_lnum - 1);
if (prev == NULL)
sp = syn_block->b_sst_first;
else
sp = prev;
while (sp != NULL && sp->sst_lnum < current_lnum)
sp = sp->sst_next;
if (sp != NULL
&& sp->sst_lnum == current_lnum
&& syn_stack_equal(sp)) {
parsed_lnum = current_lnum;
prev = sp;
while (sp != NULL && sp->sst_change_lnum <= parsed_lnum) {
if (sp->sst_lnum <= lnum)
/* valid state before desired line, use this one */
prev = sp;
else if (sp->sst_change_lnum == 0)
/* past saved states depending on change, break here. */
break;
sp->sst_change_lnum = 0;
sp = sp->sst_next;
}
load_current_state(prev);
}
/* Store the state at this line when it's the first one, the line
* where we start parsing, or some distance from the previously
* saved state. But only when parsed at least 'minlines'. */
else if (prev == NULL
|| current_lnum == lnum
|| current_lnum >= prev->sst_lnum + dist)
prev = store_current_state();
}
/* This can take a long time: break when CTRL-C pressed. The current
* state will be wrong then. */
line_breakcheck();
if (got_int) {
current_lnum = lnum;
break;
}
}
syn_start_line();
}
/*
* We cannot simply discard growarrays full of state_items or buf_states; we
* have to manually release their extmatch pointers first.
*/
static void clear_syn_state(synstate_T *p)
{
if (p->sst_stacksize > SST_FIX_STATES) {
# define UNREF_BUFSTATE_EXTMATCH(bs) unref_extmatch((bs)->bs_extmatch)
GA_DEEP_CLEAR(&(p->sst_union.sst_ga), bufstate_T, UNREF_BUFSTATE_EXTMATCH);
} else {
for (int i = 0; i < p->sst_stacksize; i++) {
unref_extmatch(p->sst_union.sst_stack[i].bs_extmatch);
}
}
}
/*
* Cleanup the current_state stack.
*/
static void clear_current_state(void)
{
# define UNREF_STATEITEM_EXTMATCH(si) unref_extmatch((si)->si_extmatch)
GA_DEEP_CLEAR(&current_state, stateitem_T, UNREF_STATEITEM_EXTMATCH);
}
/*
* Try to find a synchronisation point for line "lnum".
*
* This sets current_lnum and the current state. One of three methods is
* used:
* 1. Search backwards for the end of a C-comment.
* 2. Search backwards for given sync patterns.
* 3. Simply start on a given number of lines above "lnum".
*/
static void syn_sync(win_T *wp, linenr_T start_lnum, synstate_T *last_valid)
{
buf_T *curbuf_save;
win_T *curwin_save;
pos_T cursor_save;
int idx;
linenr_T lnum;
linenr_T end_lnum;
linenr_T break_lnum;
int had_sync_point;
stateitem_T *cur_si;
synpat_T *spp;
char_u *line;
int found_flags = 0;
int found_match_idx = 0;
linenr_T found_current_lnum = 0;
int found_current_col= 0;
lpos_T found_m_endpos;
colnr_T prev_current_col;
/*
* Clear any current state that might be hanging around.
*/
invalidate_current_state();
/*
* Start at least "minlines" back. Default starting point for parsing is
* there.
* Start further back, to avoid that scrolling backwards will result in
* resyncing for every line. Now it resyncs only one out of N lines,
* where N is minlines * 1.5, or minlines * 2 if minlines is small.
* Watch out for overflow when minlines is MAXLNUM.
*/
if (syn_block->b_syn_sync_minlines > start_lnum)
start_lnum = 1;
else {
if (syn_block->b_syn_sync_minlines == 1)
lnum = 1;
else if (syn_block->b_syn_sync_minlines < 10)
lnum = syn_block->b_syn_sync_minlines * 2;
else
lnum = syn_block->b_syn_sync_minlines * 3 / 2;
if (syn_block->b_syn_sync_maxlines != 0
&& lnum > syn_block->b_syn_sync_maxlines)
lnum = syn_block->b_syn_sync_maxlines;
if (lnum >= start_lnum)
start_lnum = 1;
else
start_lnum -= lnum;
}
current_lnum = start_lnum;
/*
* 1. Search backwards for the end of a C-style comment.
*/
if (syn_block->b_syn_sync_flags & SF_CCOMMENT) {
/* Need to make syn_buf the current buffer for a moment, to be able to
* use find_start_comment(). */
curwin_save = curwin;
curwin = wp;
curbuf_save = curbuf;
curbuf = syn_buf;
/*
* Skip lines that end in a backslash.
*/
for (; start_lnum > 1; --start_lnum) {
line = ml_get(start_lnum - 1);
if (*line == NUL || *(line + STRLEN(line) - 1) != '\\')
break;
}
current_lnum = start_lnum;
/* set cursor to start of search */
cursor_save = wp->w_cursor;
wp->w_cursor.lnum = start_lnum;
wp->w_cursor.col = 0;
/*
* If the line is inside a comment, need to find the syntax item that
* defines the comment.
* Restrict the search for the end of a comment to b_syn_sync_maxlines.
*/
if (find_start_comment((int)syn_block->b_syn_sync_maxlines) != NULL) {
for (idx = syn_block->b_syn_patterns.ga_len; --idx >= 0; )
if (SYN_ITEMS(syn_block)[idx].sp_syn.id
== syn_block->b_syn_sync_id
&& SYN_ITEMS(syn_block)[idx].sp_type == SPTYPE_START) {
validate_current_state();
push_current_state(idx);
update_si_attr(current_state.ga_len - 1);
break;
}
}
/* restore cursor and buffer */
wp->w_cursor = cursor_save;
curwin = curwin_save;
curbuf = curbuf_save;
}
/*
* 2. Search backwards for given sync patterns.
*/
else if (syn_block->b_syn_sync_flags & SF_MATCH) {
if (syn_block->b_syn_sync_maxlines != 0
&& start_lnum > syn_block->b_syn_sync_maxlines)
break_lnum = start_lnum - syn_block->b_syn_sync_maxlines;
else
break_lnum = 0;
found_m_endpos.lnum = 0;
found_m_endpos.col = 0;
end_lnum = start_lnum;
lnum = start_lnum;
while (--lnum > break_lnum) {
/* This can take a long time: break when CTRL-C pressed. */
line_breakcheck();
if (got_int) {
invalidate_current_state();
current_lnum = start_lnum;
break;
}
/* Check if we have run into a valid saved state stack now. */
if (last_valid != NULL && lnum == last_valid->sst_lnum) {
load_current_state(last_valid);
break;
}
/*
* Check if the previous line has the line-continuation pattern.
*/
if (lnum > 1 && syn_match_linecont(lnum - 1))
continue;
/*
* Start with nothing on the state stack
*/
validate_current_state();
for (current_lnum = lnum; current_lnum < end_lnum; ++current_lnum) {
syn_start_line();
for (;; ) {
had_sync_point = syn_finish_line(TRUE);
/*
* When a sync point has been found, remember where, and
* continue to look for another one, further on in the line.
*/
if (had_sync_point && current_state.ga_len) {
cur_si = &CUR_STATE(current_state.ga_len - 1);
if (cur_si->si_m_endpos.lnum > start_lnum) {
/* ignore match that goes to after where started */
current_lnum = end_lnum;
break;
}
if (cur_si->si_idx < 0) {
/* Cannot happen? */
found_flags = 0;
found_match_idx = KEYWORD_IDX;
} else {
spp = &(SYN_ITEMS(syn_block)[cur_si->si_idx]);
found_flags = spp->sp_flags;
found_match_idx = spp->sp_sync_idx;
}
found_current_lnum = current_lnum;
found_current_col = current_col;
found_m_endpos = cur_si->si_m_endpos;
/*
* Continue after the match (be aware of a zero-length
* match).
*/
if (found_m_endpos.lnum > current_lnum) {
current_lnum = found_m_endpos.lnum;
current_col = found_m_endpos.col;
if (current_lnum >= end_lnum)
break;
} else if (found_m_endpos.col > current_col)
current_col = found_m_endpos.col;
else
++current_col;
/* syn_current_attr() will have skipped the check for
* an item that ends here, need to do that now. Be
* careful not to go past the NUL. */
prev_current_col = current_col;
if (syn_getcurline()[current_col] != NUL)
++current_col;
check_state_ends();
current_col = prev_current_col;
} else
break;
}
}
/*
* If a sync point was encountered, break here.
*/
if (found_flags) {
/*
* Put the item that was specified by the sync point on the
* state stack. If there was no item specified, make the
* state stack empty.
*/
clear_current_state();
if (found_match_idx >= 0) {
push_current_state(found_match_idx);
update_si_attr(current_state.ga_len - 1);
}
/*
* When using "grouphere", continue from the sync point
* match, until the end of the line. Parsing starts at
* the next line.
* For "groupthere" the parsing starts at start_lnum.
*/
if (found_flags & HL_SYNC_HERE) {
if (!GA_EMPTY(&current_state)) {
cur_si = &CUR_STATE(current_state.ga_len - 1);
cur_si->si_h_startpos.lnum = found_current_lnum;
cur_si->si_h_startpos.col = found_current_col;
update_si_end(cur_si, (int)current_col, TRUE);
check_keepend();
}
current_col = found_m_endpos.col;
current_lnum = found_m_endpos.lnum;
(void)syn_finish_line(FALSE);
++current_lnum;
} else
current_lnum = start_lnum;
break;
}
end_lnum = lnum;
invalidate_current_state();
}
/* Ran into start of the file or exceeded maximum number of lines */
if (lnum <= break_lnum) {
invalidate_current_state();
current_lnum = break_lnum + 1;
}
}
validate_current_state();
}
static void save_chartab(char_u *chartab)
{
if (syn_block->b_syn_isk != empty_option) {
memmove(chartab, syn_buf->b_chartab, (size_t)32);
memmove(syn_buf->b_chartab, syn_win->w_s->b_syn_chartab, (size_t)32);
}
}
static void restore_chartab(char_u *chartab)
{
if (syn_win->w_s->b_syn_isk != empty_option) {
memmove(syn_buf->b_chartab, chartab, (size_t)32);
}
}
/*
* Return TRUE if the line-continuation pattern matches in line "lnum".
*/
static int syn_match_linecont(linenr_T lnum)
{
if (syn_block->b_syn_linecont_prog != NULL) {
regmmatch_T regmatch;
// chartab array for syn iskeyword
char_u buf_chartab[32];
save_chartab(buf_chartab);
regmatch.rmm_ic = syn_block->b_syn_linecont_ic;
regmatch.regprog = syn_block->b_syn_linecont_prog;
int r = syn_regexec(&regmatch, lnum, (colnr_T)0,
IF_SYN_TIME(&syn_block->b_syn_linecont_time));
syn_block->b_syn_linecont_prog = regmatch.regprog;
restore_chartab(buf_chartab);
return r;
}
return FALSE;
}
/*
* Prepare the current state for the start of a line.
*/
static void syn_start_line(void)
{
current_finished = FALSE;
current_col = 0;
/*
* Need to update the end of a start/skip/end that continues from the
* previous line and regions that have "keepend".
*/
if (!GA_EMPTY(&current_state)) {
syn_update_ends(TRUE);
check_state_ends();
}
next_match_idx = -1;
++current_line_id;
}
/*
* Check for items in the stack that need their end updated.
* When "startofline" is TRUE the last item is always updated.
* When "startofline" is FALSE the item with "keepend" is forcefully updated.
*/
static void syn_update_ends(int startofline)
{
stateitem_T *cur_si;
int seen_keepend;
if (startofline) {
/* Check for a match carried over from a previous line with a
* contained region. The match ends as soon as the region ends. */
for (int i = 0; i < current_state.ga_len; ++i) {
cur_si = &CUR_STATE(i);
if (cur_si->si_idx >= 0
&& (SYN_ITEMS(syn_block)[cur_si->si_idx]).sp_type
== SPTYPE_MATCH
&& cur_si->si_m_endpos.lnum < current_lnum) {
cur_si->si_flags |= HL_MATCHCONT;
cur_si->si_m_endpos.lnum = 0;
cur_si->si_m_endpos.col = 0;
cur_si->si_h_endpos = cur_si->si_m_endpos;
cur_si->si_ends = TRUE;
}
}
}
/*
* Need to update the end of a start/skip/end that continues from the
* previous line. And regions that have "keepend", because they may
* influence contained items. If we've just removed "extend"
* (startofline == 0) then we should update ends of normal regions
* contained inside "keepend" because "extend" could have extended
* these "keepend" regions as well as contained normal regions.
* Then check for items ending in column 0.
*/
int i = current_state.ga_len - 1;
if (keepend_level >= 0)
for (; i > keepend_level; --i)
if (CUR_STATE(i).si_flags & HL_EXTEND)
break;
seen_keepend = FALSE;
for (; i < current_state.ga_len; ++i) {
cur_si = &CUR_STATE(i);
if ((cur_si->si_flags & HL_KEEPEND)
|| (seen_keepend && !startofline)
|| (i == current_state.ga_len - 1 && startofline)) {
cur_si->si_h_startpos.col = 0; /* start highl. in col 0 */
cur_si->si_h_startpos.lnum = current_lnum;
if (!(cur_si->si_flags & HL_MATCHCONT))
update_si_end(cur_si, (int)current_col, !startofline);
if (!startofline && (cur_si->si_flags & HL_KEEPEND))
seen_keepend = TRUE;
}
}
check_keepend();
}
/****************************************
* Handling of the state stack cache.
*/
/*
* EXPLANATION OF THE SYNTAX STATE STACK CACHE
*
* To speed up syntax highlighting, the state stack for the start of some
* lines is cached. These entries can be used to start parsing at that point.
*
* The stack is kept in b_sst_array[] for each buffer. There is a list of
* valid entries. b_sst_first points to the first one, then follow sst_next.
* The entries are sorted on line number. The first entry is often for line 2
* (line 1 always starts with an empty stack).
* There is also a list for free entries. This construction is used to avoid
* having to allocate and free memory blocks too often.
*
* When making changes to the buffer, this is logged in b_mod_*. When calling
* update_screen() to update the display, it will call
* syn_stack_apply_changes() for each displayed buffer to adjust the cached
* entries. The entries which are inside the changed area are removed,
* because they must be recomputed. Entries below the changed have their line
* number adjusted for deleted/inserted lines, and have their sst_change_lnum
* set to indicate that a check must be made if the changed lines would change
* the cached entry.
*
* When later displaying lines, an entry is stored for each line. Displayed
* lines are likely to be displayed again, in which case the state at the
* start of the line is needed.
* For not displayed lines, an entry is stored for every so many lines. These
* entries will be used e.g., when scrolling backwards. The distance between
* entries depends on the number of lines in the buffer. For small buffers
* the distance is fixed at SST_DIST, for large buffers there is a fixed
* number of entries SST_MAX_ENTRIES, and the distance is computed.
*/
static void syn_stack_free_block(synblock_T *block)
{
synstate_T *p;
if (block->b_sst_array != NULL) {
for (p = block->b_sst_first; p != NULL; p = p->sst_next)
clear_syn_state(p);
xfree(block->b_sst_array);
block->b_sst_array = NULL;
block->b_sst_len = 0;
}
}
/*
* Free b_sst_array[] for buffer "buf".
* Used when syntax items changed to force resyncing everywhere.
*/
void syn_stack_free_all(synblock_T *block)
{
syn_stack_free_block(block);
/* When using "syntax" fold method, must update all folds. */
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
if (wp->w_s == block && foldmethodIsSyntax(wp)) {
foldUpdateAll(wp);
}
}
}
/*
* Allocate the syntax state stack for syn_buf when needed.
* If the number of entries in b_sst_array[] is much too big or a bit too
* small, reallocate it.
* Also used to allocate b_sst_array[] for the first time.
*/
static void syn_stack_alloc(void)
{
long len;
synstate_T *to, *from;
synstate_T *sstp;
len = syn_buf->b_ml.ml_line_count / SST_DIST + Rows * 2;
if (len < SST_MIN_ENTRIES)
len = SST_MIN_ENTRIES;
else if (len > SST_MAX_ENTRIES)
len = SST_MAX_ENTRIES;
if (syn_block->b_sst_len > len * 2 || syn_block->b_sst_len < len) {
/* Allocate 50% too much, to avoid reallocating too often. */
len = syn_buf->b_ml.ml_line_count;
len = (len + len / 2) / SST_DIST + Rows * 2;
if (len < SST_MIN_ENTRIES)
len = SST_MIN_ENTRIES;
else if (len > SST_MAX_ENTRIES)
len = SST_MAX_ENTRIES;
if (syn_block->b_sst_array != NULL) {
/* When shrinking the array, cleanup the existing stack.
* Make sure that all valid entries fit in the new array. */
while (syn_block->b_sst_len - syn_block->b_sst_freecount + 2 > len
&& syn_stack_cleanup())
;
if (len < syn_block->b_sst_len - syn_block->b_sst_freecount + 2)
len = syn_block->b_sst_len - syn_block->b_sst_freecount + 2;
}
assert(len >= 0);
sstp = xcalloc(len, sizeof(synstate_T));
to = sstp - 1;
if (syn_block->b_sst_array != NULL) {
/* Move the states from the old array to the new one. */
for (from = syn_block->b_sst_first; from != NULL;
from = from->sst_next) {
++to;
*to = *from;
to->sst_next = to + 1;
}
}
if (to != sstp - 1) {
to->sst_next = NULL;
syn_block->b_sst_first = sstp;
syn_block->b_sst_freecount = len - (int)(to - sstp) - 1;
} else {
syn_block->b_sst_first = NULL;
syn_block->b_sst_freecount = len;
}
/* Create the list of free entries. */
syn_block->b_sst_firstfree = to + 1;
while (++to < sstp + len)
to->sst_next = to + 1;
(sstp + len - 1)->sst_next = NULL;
xfree(syn_block->b_sst_array);
syn_block->b_sst_array = sstp;
syn_block->b_sst_len = len;
}
}
/*
* Check for changes in a buffer to affect stored syntax states. Uses the
* b_mod_* fields.
* Called from update_screen(), before screen is being updated, once for each
* displayed buffer.
*/
void syn_stack_apply_changes(buf_T *buf)
{
syn_stack_apply_changes_block(&buf->b_s, buf);
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
if ((wp->w_buffer == buf) && (wp->w_s != &buf->b_s)) {
syn_stack_apply_changes_block(wp->w_s, buf);
}
}
}
static void syn_stack_apply_changes_block(synblock_T *block, buf_T *buf)
{
synstate_T *p, *prev, *np;
linenr_T n;
if (block->b_sst_array == NULL) /* nothing to do */
return;
prev = NULL;
for (p = block->b_sst_first; p != NULL; ) {
if (p->sst_lnum + block->b_syn_sync_linebreaks > buf->b_mod_top) {
n = p->sst_lnum + buf->b_mod_xlines;
if (n <= buf->b_mod_bot) {
/* this state is inside the changed area, remove it */
np = p->sst_next;
if (prev == NULL)
block->b_sst_first = np;
else
prev->sst_next = np;
syn_stack_free_entry(block, p);
p = np;
continue;
}
/* This state is below the changed area. Remember the line
* that needs to be parsed before this entry can be made valid
* again. */
if (p->sst_change_lnum != 0 && p->sst_change_lnum > buf->b_mod_top) {
if (p->sst_change_lnum + buf->b_mod_xlines > buf->b_mod_top)
p->sst_change_lnum += buf->b_mod_xlines;
else
p->sst_change_lnum = buf->b_mod_top;
}
if (p->sst_change_lnum == 0
|| p->sst_change_lnum < buf->b_mod_bot)
p->sst_change_lnum = buf->b_mod_bot;
p->sst_lnum = n;
}
prev = p;
p = p->sst_next;
}
}
/*
* Reduce the number of entries in the state stack for syn_buf.
* Returns TRUE if at least one entry was freed.
*/
static int syn_stack_cleanup(void)
{
synstate_T *p, *prev;
disptick_T tick;
int above;
int dist;
int retval = FALSE;
if (syn_block->b_sst_array == NULL || syn_block->b_sst_first == NULL)
return retval;
/* Compute normal distance between non-displayed entries. */
if (syn_block->b_sst_len <= Rows)
dist = 999999;
else
dist = syn_buf->b_ml.ml_line_count / (syn_block->b_sst_len - Rows) + 1;
/*
* Go through the list to find the "tick" for the oldest entry that can
* be removed. Set "above" when the "tick" for the oldest entry is above
* "b_sst_lasttick" (the display tick wraps around).
*/
tick = syn_block->b_sst_lasttick;
above = FALSE;
prev = syn_block->b_sst_first;
for (p = prev->sst_next; p != NULL; prev = p, p = p->sst_next) {
if (prev->sst_lnum + dist > p->sst_lnum) {
if (p->sst_tick > syn_block->b_sst_lasttick) {
if (!above || p->sst_tick < tick)
tick = p->sst_tick;
above = TRUE;
} else if (!above && p->sst_tick < tick)
tick = p->sst_tick;
}
}
/*
* Go through the list to make the entries for the oldest tick at an
* interval of several lines.
*/
prev = syn_block->b_sst_first;
for (p = prev->sst_next; p != NULL; prev = p, p = p->sst_next) {
if (p->sst_tick == tick && prev->sst_lnum + dist > p->sst_lnum) {
/* Move this entry from used list to free list */
prev->sst_next = p->sst_next;
syn_stack_free_entry(syn_block, p);
p = prev;
retval = TRUE;
}
}
return retval;
}
/*
* Free the allocated memory for a syn_state item.
* Move the entry into the free list.
*/
static void syn_stack_free_entry(synblock_T *block, synstate_T *p)
{
clear_syn_state(p);
p->sst_next = block->b_sst_firstfree;
block->b_sst_firstfree = p;
++block->b_sst_freecount;
}
/*
* Find an entry in the list of state stacks at or before "lnum".
* Returns NULL when there is no entry or the first entry is after "lnum".
*/
static synstate_T *syn_stack_find_entry(linenr_T lnum)
{
synstate_T *p, *prev;
prev = NULL;
for (p = syn_block->b_sst_first; p != NULL; prev = p, p = p->sst_next) {
if (p->sst_lnum == lnum)
return p;
if (p->sst_lnum > lnum)
break;
}
return prev;
}
/*
* Try saving the current state in b_sst_array[].
* The current state must be valid for the start of the current_lnum line!
*/
static synstate_T *store_current_state(void)
{
int i;
synstate_T *p;
bufstate_T *bp;
stateitem_T *cur_si;
synstate_T *sp = syn_stack_find_entry(current_lnum);
/*
* If the current state contains a start or end pattern that continues
* from the previous line, we can't use it. Don't store it then.
*/
for (i = current_state.ga_len - 1; i >= 0; --i) {
cur_si = &CUR_STATE(i);
if (cur_si->si_h_startpos.lnum >= current_lnum
|| cur_si->si_m_endpos.lnum >= current_lnum
|| cur_si->si_h_endpos.lnum >= current_lnum
|| (cur_si->si_end_idx
&& cur_si->si_eoe_pos.lnum >= current_lnum))
break;
}
if (i >= 0) {
if (sp != NULL) {
/* find "sp" in the list and remove it */
if (syn_block->b_sst_first == sp)
/* it's the first entry */
syn_block->b_sst_first = sp->sst_next;
else {
/* find the entry just before this one to adjust sst_next */
for (p = syn_block->b_sst_first; p != NULL; p = p->sst_next)
if (p->sst_next == sp)
break;
if (p != NULL) /* just in case */
p->sst_next = sp->sst_next;
}
syn_stack_free_entry(syn_block, sp);
sp = NULL;
}
} else if (sp == NULL || sp->sst_lnum != current_lnum) {
/*
* Add a new entry
*/
/* If no free items, cleanup the array first. */
if (syn_block->b_sst_freecount == 0) {
(void)syn_stack_cleanup();
/* "sp" may have been moved to the freelist now */
sp = syn_stack_find_entry(current_lnum);
}
/* Still no free items? Must be a strange problem... */
if (syn_block->b_sst_freecount == 0)
sp = NULL;
else {
/* Take the first item from the free list and put it in the used
* list, after *sp */
p = syn_block->b_sst_firstfree;
syn_block->b_sst_firstfree = p->sst_next;
--syn_block->b_sst_freecount;
if (sp == NULL) {
/* Insert in front of the list */
p->sst_next = syn_block->b_sst_first;
syn_block->b_sst_first = p;
} else {
/* insert in list after *sp */
p->sst_next = sp->sst_next;
sp->sst_next = p;
}
sp = p;
sp->sst_stacksize = 0;
sp->sst_lnum = current_lnum;
}
}
if (sp != NULL) {
/* When overwriting an existing state stack, clear it first */
clear_syn_state(sp);
sp->sst_stacksize = current_state.ga_len;
if (current_state.ga_len > SST_FIX_STATES) {
/* Need to clear it, might be something remaining from when the
* length was less than SST_FIX_STATES. */
ga_init(&sp->sst_union.sst_ga, (int)sizeof(bufstate_T), 1);
ga_grow(&sp->sst_union.sst_ga, current_state.ga_len);
sp->sst_union.sst_ga.ga_len = current_state.ga_len;
bp = SYN_STATE_P(&(sp->sst_union.sst_ga));
} else
bp = sp->sst_union.sst_stack;
for (i = 0; i < sp->sst_stacksize; ++i) {
bp[i].bs_idx = CUR_STATE(i).si_idx;
bp[i].bs_flags = CUR_STATE(i).si_flags;
bp[i].bs_seqnr = CUR_STATE(i).si_seqnr;
bp[i].bs_cchar = CUR_STATE(i).si_cchar;
bp[i].bs_extmatch = ref_extmatch(CUR_STATE(i).si_extmatch);
}
sp->sst_next_flags = current_next_flags;
sp->sst_next_list = current_next_list;
sp->sst_tick = display_tick;
sp->sst_change_lnum = 0;
}
current_state_stored = TRUE;
return sp;
}
/*
* Copy a state stack from "from" in b_sst_array[] to current_state;
*/
static void load_current_state(synstate_T *from)
{
int i;
bufstate_T *bp;
clear_current_state();
validate_current_state();
keepend_level = -1;
if (from->sst_stacksize) {
ga_grow(&current_state, from->sst_stacksize);
if (from->sst_stacksize > SST_FIX_STATES)
bp = SYN_STATE_P(&(from->sst_union.sst_ga));
else
bp = from->sst_union.sst_stack;
for (i = 0; i < from->sst_stacksize; ++i) {
CUR_STATE(i).si_idx = bp[i].bs_idx;
CUR_STATE(i).si_flags = bp[i].bs_flags;
CUR_STATE(i).si_seqnr = bp[i].bs_seqnr;
CUR_STATE(i).si_cchar = bp[i].bs_cchar;
CUR_STATE(i).si_extmatch = ref_extmatch(bp[i].bs_extmatch);
if (keepend_level < 0 && (CUR_STATE(i).si_flags & HL_KEEPEND))
keepend_level = i;
CUR_STATE(i).si_ends = FALSE;
CUR_STATE(i).si_m_lnum = 0;
if (CUR_STATE(i).si_idx >= 0)
CUR_STATE(i).si_next_list =
(SYN_ITEMS(syn_block)[CUR_STATE(i).si_idx]).sp_next_list;
else
CUR_STATE(i).si_next_list = NULL;
update_si_attr(i);
}
current_state.ga_len = from->sst_stacksize;
}
current_next_list = from->sst_next_list;
current_next_flags = from->sst_next_flags;
current_lnum = from->sst_lnum;
}
/*
* Compare saved state stack "*sp" with the current state.
* Return TRUE when they are equal.
*/
static int syn_stack_equal(synstate_T *sp)
{
bufstate_T *bp;
reg_extmatch_T *six, *bsx;
/* First a quick check if the stacks have the same size end nextlist. */
if (sp->sst_stacksize != current_state.ga_len
|| sp->sst_next_list != current_next_list) {
return FALSE;
}
/* Need to compare all states on both stacks. */
if (sp->sst_stacksize > SST_FIX_STATES)
bp = SYN_STATE_P(&(sp->sst_union.sst_ga));
else
bp = sp->sst_union.sst_stack;
int i;
for (i = current_state.ga_len; --i >= 0; ) {
/* If the item has another index the state is different. */
if (bp[i].bs_idx != CUR_STATE(i).si_idx)
break;
if (bp[i].bs_extmatch == CUR_STATE(i).si_extmatch) {
continue;
}
/* When the extmatch pointers are different, the strings in
* them can still be the same. Check if the extmatch
* references are equal. */
bsx = bp[i].bs_extmatch;
six = CUR_STATE(i).si_extmatch;
/* If one of the extmatch pointers is NULL the states are
* different. */
if (bsx == NULL || six == NULL)
break;
int j;
for (j = 0; j < NSUBEXP; ++j) {
/* Check each referenced match string. They must all be
* equal. */
if (bsx->matches[j] != six->matches[j]) {
/* If the pointer is different it can still be the
* same text. Compare the strings, ignore case when
* the start item has the sp_ic flag set. */
if (bsx->matches[j] == NULL || six->matches[j] == NULL) {
break;
}
if (mb_strcmp_ic((SYN_ITEMS(syn_block)[CUR_STATE(i).si_idx]).sp_ic,
(const char *)bsx->matches[j],
(const char *)six->matches[j]) != 0) {
break;
}
}
}
if (j != NSUBEXP)
break;
}
if (i < 0)
return TRUE;
return FALSE;
}
/*
* We stop parsing syntax above line "lnum". If the stored state at or below
* this line depended on a change before it, it now depends on the line below
* the last parsed line.
* The window looks like this:
* line which changed
* displayed line
* displayed line
* lnum -> line below window
*/
void syntax_end_parsing(linenr_T lnum)
{
synstate_T *sp;
sp = syn_stack_find_entry(lnum);
if (sp != NULL && sp->sst_lnum < lnum)
sp = sp->sst_next;
if (sp != NULL && sp->sst_change_lnum != 0)
sp->sst_change_lnum = lnum;
}
/*
* End of handling of the state stack.
****************************************/
static void invalidate_current_state(void)
{
clear_current_state();
current_state.ga_itemsize = 0; /* mark current_state invalid */
current_next_list = NULL;
keepend_level = -1;
}
static void validate_current_state(void)
{
current_state.ga_itemsize = sizeof(stateitem_T);
ga_set_growsize(&current_state, 3);
}
/*
* Return TRUE if the syntax at start of lnum changed since last time.
* This will only be called just after get_syntax_attr() for the previous
* line, to check if the next line needs to be redrawn too.
*/
int syntax_check_changed(linenr_T lnum)
{
int retval = TRUE;
synstate_T *sp;
/*
* Check the state stack when:
* - lnum is just below the previously syntaxed line.
* - lnum is not before the lines with saved states.
* - lnum is not past the lines with saved states.
* - lnum is at or before the last changed line.
*/
if (VALID_STATE(&current_state) && lnum == current_lnum + 1) {
sp = syn_stack_find_entry(lnum);
if (sp != NULL && sp->sst_lnum == lnum) {
/*
* finish the previous line (needed when not all of the line was
* drawn)
*/
(void)syn_finish_line(FALSE);
/*
* Compare the current state with the previously saved state of
* the line.
*/
if (syn_stack_equal(sp))
retval = FALSE;
/*
* Store the current state in b_sst_array[] for later use.
*/
++current_lnum;
(void)store_current_state();
}
}
return retval;
}
/*
* Finish the current line.
* This doesn't return any attributes, it only gets the state at the end of
* the line. It can start anywhere in the line, as long as the current state
* is valid.
*/
static int
syn_finish_line (
int syncing /* called for syncing */
)
{
stateitem_T *cur_si;
colnr_T prev_current_col;
while (!current_finished) {
(void)syn_current_attr(syncing, FALSE, NULL, FALSE);
/*
* When syncing, and found some item, need to check the item.
*/
if (syncing && current_state.ga_len) {
/*
* Check for match with sync item.
*/
cur_si = &CUR_STATE(current_state.ga_len - 1);
if (cur_si->si_idx >= 0
&& (SYN_ITEMS(syn_block)[cur_si->si_idx].sp_flags
& (HL_SYNC_HERE|HL_SYNC_THERE)))
return TRUE;
/* syn_current_attr() will have skipped the check for an item
* that ends here, need to do that now. Be careful not to go
* past the NUL. */
prev_current_col = current_col;
if (syn_getcurline()[current_col] != NUL)
++current_col;
check_state_ends();
current_col = prev_current_col;
}
++current_col;
}
return FALSE;
}
/*
* Return highlight attributes for next character.
* Must first call syntax_start() once for the line.
* "col" is normally 0 for the first use in a line, and increments by one each
* time. It's allowed to skip characters and to stop before the end of the
* line. But only a "col" after a previously used column is allowed.
* When "can_spell" is not NULL set it to TRUE when spell-checking should be
* done.
*/
int
get_syntax_attr (
colnr_T col,
bool *can_spell,
int keep_state /* keep state of char at "col" */
)
{
int attr = 0;
if (can_spell != NULL)
/* Default: Only do spelling when there is no @Spell cluster or when
* ":syn spell toplevel" was used. */
*can_spell = syn_block->b_syn_spell == SYNSPL_DEFAULT
? (syn_block->b_spell_cluster_id == 0)
: (syn_block->b_syn_spell == SYNSPL_TOP);
/* check for out of memory situation */
if (syn_block->b_sst_array == NULL)
return 0;
/* After 'synmaxcol' the attribute is always zero. */
if (syn_buf->b_p_smc > 0 && col >= (colnr_T)syn_buf->b_p_smc) {
clear_current_state();
current_id = 0;
current_trans_id = 0;
current_flags = 0;
return 0;
}
/* Make sure current_state is valid */
if (INVALID_STATE(&current_state))
validate_current_state();
/*
* Skip from the current column to "col", get the attributes for "col".
*/
while (current_col <= col) {
attr = syn_current_attr(FALSE, TRUE, can_spell,
current_col == col ? keep_state : FALSE);
++current_col;
}
return attr;
}
/*
* Get syntax attributes for current_lnum, current_col.
*/
static int
syn_current_attr (
int syncing, /* When 1: called for syncing */
int displaying, /* result will be displayed */
bool *can_spell, /* return: do spell checking */
int keep_state /* keep syntax stack afterwards */
)
{
int syn_id;
lpos_T endpos; /* was: char_u *endp; */
lpos_T hl_startpos; /* was: int hl_startcol; */
lpos_T hl_endpos;
lpos_T eos_pos; /* end-of-start match (start region) */
lpos_T eoe_pos; /* end-of-end pattern */
int end_idx; /* group ID for end pattern */
synpat_T *spp;
stateitem_T *cur_si, *sip = NULL;
int startcol;
int endcol;
long flags;
int cchar;
short *next_list;
int found_match; /* found usable match */
static int try_next_column = FALSE; /* must try in next col */
int do_keywords;
regmmatch_T regmatch;
lpos_T pos;
int lc_col;
reg_extmatch_T *cur_extmatch = NULL;
char_u buf_chartab[32]; // chartab array for syn iskeyword
char_u *line; // current line. NOTE: becomes invalid after
// looking for a pattern match!
/* variables for zero-width matches that have a "nextgroup" argument */
int keep_next_list;
int zero_width_next_list = FALSE;
garray_T zero_width_next_ga;
/*
* No character, no attributes! Past end of line?
* Do try matching with an empty line (could be the start of a region).
*/
line = syn_getcurline();
if (line[current_col] == NUL && current_col != 0) {
/*
* If we found a match after the last column, use it.
*/
if (next_match_idx >= 0 && next_match_col >= (int)current_col
&& next_match_col != MAXCOL) {
(void)push_next_match();
}
current_finished = TRUE;
current_state_stored = FALSE;
return 0;
}
/* if the current or next character is NUL, we will finish the line now */
if (line[current_col] == NUL || line[current_col + 1] == NUL) {
current_finished = TRUE;
current_state_stored = FALSE;
}
/*
* When in the previous column there was a match but it could not be used
* (empty match or already matched in this column) need to try again in
* the next column.
*/
if (try_next_column) {
next_match_idx = -1;
try_next_column = FALSE;
}
/* Only check for keywords when not syncing and there are some. */
do_keywords = !syncing
&& (syn_block->b_keywtab.ht_used > 0
|| syn_block->b_keywtab_ic.ht_used > 0);
/* Init the list of zero-width matches with a nextlist. This is used to
* avoid matching the same item in the same position twice. */
ga_init(&zero_width_next_ga, (int)sizeof(int), 10);
// use syntax iskeyword option
save_chartab(buf_chartab);
/*
* Repeat matching keywords and patterns, to find contained items at the
* same column. This stops when there are no extra matches at the current
* column.
*/
do {
found_match = FALSE;
keep_next_list = FALSE;
syn_id = 0;
/*
* 1. Check for a current state.
* Only when there is no current state, or if the current state may
* contain other things, we need to check for keywords and patterns.
* Always need to check for contained items if some item has the
* "containedin" argument (takes extra time!).
*/
if (current_state.ga_len)
cur_si = &CUR_STATE(current_state.ga_len - 1);
else
cur_si = NULL;
if (syn_block->b_syn_containedin || cur_si == NULL
|| cur_si->si_cont_list != NULL) {
/*
* 2. Check for keywords, if on a keyword char after a non-keyword
* char. Don't do this when syncing.
*/
if (do_keywords) {
line = syn_getcurline();
if (vim_iswordp_buf(line + current_col, syn_buf)
&& (current_col == 0
|| !vim_iswordp_buf(line + current_col - 1
- (has_mbyte
? (*mb_head_off)(line, line + current_col - 1)
: 0)
, syn_buf))) {
syn_id = check_keyword_id(line, (int)current_col,
&endcol, &flags, &next_list, cur_si,
&cchar);
if (syn_id != 0) {
push_current_state(KEYWORD_IDX);
{
cur_si = &CUR_STATE(current_state.ga_len - 1);
cur_si->si_m_startcol = current_col;
cur_si->si_h_startpos.lnum = current_lnum;
cur_si->si_h_startpos.col = 0; /* starts right away */
cur_si->si_m_endpos.lnum = current_lnum;
cur_si->si_m_endpos.col = endcol;
cur_si->si_h_endpos.lnum = current_lnum;
cur_si->si_h_endpos.col = endcol;
cur_si->si_ends = TRUE;
cur_si->si_end_idx = 0;
cur_si->si_flags = flags;
cur_si->si_seqnr = next_seqnr++;
cur_si->si_cchar = cchar;
if (current_state.ga_len > 1)
cur_si->si_flags |=
CUR_STATE(current_state.ga_len - 2).si_flags
& HL_CONCEAL;
cur_si->si_id = syn_id;
cur_si->si_trans_id = syn_id;
if (flags & HL_TRANSP) {
if (current_state.ga_len < 2) {
cur_si->si_attr = 0;
cur_si->si_trans_id = 0;
} else {
cur_si->si_attr = CUR_STATE(
current_state.ga_len - 2).si_attr;
cur_si->si_trans_id = CUR_STATE(
current_state.ga_len - 2).si_trans_id;
}
} else {
cur_si->si_attr = syn_id2attr(syn_id);
}
cur_si->si_cont_list = NULL;
cur_si->si_next_list = next_list;
check_keepend();
}
}
}
}
/*
* 3. Check for patterns (only if no keyword found).
*/
if (syn_id == 0 && syn_block->b_syn_patterns.ga_len) {
/*
* If we didn't check for a match yet, or we are past it, check
* for any match with a pattern.
*/
if (next_match_idx < 0 || next_match_col < (int)current_col) {
/*
* Check all relevant patterns for a match at this
* position. This is complicated, because matching with a
* pattern takes quite a bit of time, thus we want to
* avoid doing it when it's not needed.
*/
next_match_idx = 0; /* no match in this line yet */
next_match_col = MAXCOL;
for (int idx = syn_block->b_syn_patterns.ga_len; --idx >= 0; ) {
spp = &(SYN_ITEMS(syn_block)[idx]);
if ( spp->sp_syncing == syncing
&& (displaying || !(spp->sp_flags & HL_DISPLAY))
&& (spp->sp_type == SPTYPE_MATCH
|| spp->sp_type == SPTYPE_START)
&& (current_next_list != NULL
? in_id_list(NULL, current_next_list,
&spp->sp_syn, 0)
: (cur_si == NULL
? !(spp->sp_flags & HL_CONTAINED)
: in_id_list(cur_si,
cur_si->si_cont_list, &spp->sp_syn,
spp->sp_flags & HL_CONTAINED)))) {
/* If we already tried matching in this line, and
* there isn't a match before next_match_col, skip
* this item. */
if (spp->sp_line_id == current_line_id
&& spp->sp_startcol >= next_match_col)
continue;
spp->sp_line_id = current_line_id;
lc_col = current_col - spp->sp_offsets[SPO_LC_OFF];
if (lc_col < 0)
lc_col = 0;
regmatch.rmm_ic = spp->sp_ic;
regmatch.regprog = spp->sp_prog;
int r = syn_regexec(&regmatch, current_lnum, (colnr_T)lc_col,
IF_SYN_TIME(&spp->sp_time));
spp->sp_prog = regmatch.regprog;
if (!r) {
/* no match in this line, try another one */
spp->sp_startcol = MAXCOL;
continue;
}
/*
* Compute the first column of the match.
*/
syn_add_start_off(&pos, &regmatch,
spp, SPO_MS_OFF, -1);
if (pos.lnum > current_lnum) {
/* must have used end of match in a next line,
* we can't handle that */
spp->sp_startcol = MAXCOL;
continue;
}
startcol = pos.col;
/* remember the next column where this pattern
* matches in the current line */
spp->sp_startcol = startcol;
/*
* If a previously found match starts at a lower
* column number, don't use this one.
*/
if (startcol >= next_match_col)
continue;
/*
* If we matched this pattern at this position
* before, skip it. Must retry in the next
* column, because it may match from there.
*/
if (did_match_already(idx, &zero_width_next_ga)) {
try_next_column = TRUE;
continue;
}
endpos.lnum = regmatch.endpos[0].lnum;
endpos.col = regmatch.endpos[0].col;
/* Compute the highlight start. */
syn_add_start_off(&hl_startpos, &regmatch,
spp, SPO_HS_OFF, -1);
/* Compute the region start. */
/* Default is to use the end of the match. */
syn_add_end_off(&eos_pos, &regmatch,
spp, SPO_RS_OFF, 0);
/*
* Grab the external submatches before they get
* overwritten. Reference count doesn't change.
*/
unref_extmatch(cur_extmatch);
cur_extmatch = re_extmatch_out;
re_extmatch_out = NULL;
flags = 0;
eoe_pos.lnum = 0; /* avoid warning */
eoe_pos.col = 0;
end_idx = 0;
hl_endpos.lnum = 0;
/*
* For a "oneline" the end must be found in the
* same line too. Search for it after the end of
* the match with the start pattern. Set the
* resulting end positions at the same time.
*/
if (spp->sp_type == SPTYPE_START
&& (spp->sp_flags & HL_ONELINE)) {
lpos_T startpos;
startpos = endpos;
find_endpos(idx, &startpos, &endpos, &hl_endpos,
&flags, &eoe_pos, &end_idx, cur_extmatch);
if (endpos.lnum == 0)
continue; /* not found */
}
/*
* For a "match" the size must be > 0 after the
* end offset needs has been added. Except when
* syncing.
*/
else if (spp->sp_type == SPTYPE_MATCH) {
syn_add_end_off(&hl_endpos, &regmatch, spp,
SPO_HE_OFF, 0);
syn_add_end_off(&endpos, &regmatch, spp,
SPO_ME_OFF, 0);
if (endpos.lnum == current_lnum
&& (int)endpos.col + syncing < startcol) {
/*
* If an empty string is matched, may need
* to try matching again at next column.
*/
if (regmatch.startpos[0].col
== regmatch.endpos[0].col)
try_next_column = TRUE;
continue;
}
}
/*
* keep the best match so far in next_match_*
*/
/* Highlighting must start after startpos and end
* before endpos. */
if (hl_startpos.lnum == current_lnum
&& (int)hl_startpos.col < startcol)
hl_startpos.col = startcol;
limit_pos_zero(&hl_endpos, &endpos);
next_match_idx = idx;
next_match_col = startcol;
next_match_m_endpos = endpos;
next_match_h_endpos = hl_endpos;
next_match_h_startpos = hl_startpos;
next_match_flags = flags;
next_match_eos_pos = eos_pos;
next_match_eoe_pos = eoe_pos;
next_match_end_idx = end_idx;
unref_extmatch(next_match_extmatch);
next_match_extmatch = cur_extmatch;
cur_extmatch = NULL;
}
}
}
/*
* If we found a match at the current column, use it.
*/
if (next_match_idx >= 0 && next_match_col == (int)current_col) {
synpat_T *lspp;
/* When a zero-width item matched which has a nextgroup,
* don't push the item but set nextgroup. */
lspp = &(SYN_ITEMS(syn_block)[next_match_idx]);
if (next_match_m_endpos.lnum == current_lnum
&& next_match_m_endpos.col == current_col
&& lspp->sp_next_list != NULL) {
current_next_list = lspp->sp_next_list;
current_next_flags = lspp->sp_flags;
keep_next_list = TRUE;
zero_width_next_list = TRUE;
/* Add the index to a list, so that we can check
* later that we don't match it again (and cause an
* endless loop). */
GA_APPEND(int, &zero_width_next_ga, next_match_idx);
next_match_idx = -1;
} else {
cur_si = push_next_match();
}
found_match = true;
}
}
}
/*
* Handle searching for nextgroup match.
*/
if (current_next_list != NULL && !keep_next_list) {
/*
* If a nextgroup was not found, continue looking for one if:
* - this is an empty line and the "skipempty" option was given
* - we are on white space and the "skipwhite" option was given
*/
if (!found_match) {
line = syn_getcurline();
if (((current_next_flags & HL_SKIPWHITE)
&& ascii_iswhite(line[current_col]))
|| ((current_next_flags & HL_SKIPEMPTY)
&& *line == NUL))
break;
}
/*
* If a nextgroup was found: Use it, and continue looking for
* contained matches.
* If a nextgroup was not found: Continue looking for a normal
* match.
* When did set current_next_list for a zero-width item and no
* match was found don't loop (would get stuck).
*/
current_next_list = NULL;
next_match_idx = -1;
if (!zero_width_next_list)
found_match = TRUE;
}
} while (found_match);
restore_chartab(buf_chartab);
/*
* Use attributes from the current state, if within its highlighting.
* If not, use attributes from the current-but-one state, etc.
*/
current_attr = 0;
current_id = 0;
current_trans_id = 0;
current_flags = 0;
if (cur_si != NULL) {
for (int idx = current_state.ga_len - 1; idx >= 0; --idx) {
sip = &CUR_STATE(idx);
if ((current_lnum > sip->si_h_startpos.lnum
|| (current_lnum == sip->si_h_startpos.lnum
&& current_col >= sip->si_h_startpos.col))
&& (sip->si_h_endpos.lnum == 0
|| current_lnum < sip->si_h_endpos.lnum
|| (current_lnum == sip->si_h_endpos.lnum
&& current_col < sip->si_h_endpos.col))) {
current_attr = sip->si_attr;
current_id = sip->si_id;
current_trans_id = sip->si_trans_id;
current_flags = sip->si_flags;
current_seqnr = sip->si_seqnr;
current_sub_char = sip->si_cchar;
break;
}
}
if (can_spell != NULL) {
struct sp_syn sps;
/*
* set "can_spell" to TRUE if spell checking is supposed to be
* done in the current item.
*/
if (syn_block->b_spell_cluster_id == 0) {
/* There is no @Spell cluster: Do spelling for items without
* @NoSpell cluster. */
if (syn_block->b_nospell_cluster_id == 0
|| current_trans_id == 0)
*can_spell = (syn_block->b_syn_spell != SYNSPL_NOTOP);
else {
sps.inc_tag = 0;
sps.id = syn_block->b_nospell_cluster_id;
sps.cont_in_list = NULL;
*can_spell = !in_id_list(sip, sip->si_cont_list, &sps, 0);
}
} else {
/* The @Spell cluster is defined: Do spelling in items with
* the @Spell cluster. But not when @NoSpell is also there.
* At the toplevel only spell check when ":syn spell toplevel"
* was used. */
if (current_trans_id == 0)
*can_spell = (syn_block->b_syn_spell == SYNSPL_TOP);
else {
sps.inc_tag = 0;
sps.id = syn_block->b_spell_cluster_id;
sps.cont_in_list = NULL;
*can_spell = in_id_list(sip, sip->si_cont_list, &sps, 0);
if (syn_block->b_nospell_cluster_id != 0) {
sps.id = syn_block->b_nospell_cluster_id;
if (in_id_list(sip, sip->si_cont_list, &sps, 0))
*can_spell = false;
}
}
}
}
/*
* Check for end of current state (and the states before it) at the
* next column. Don't do this for syncing, because we would miss a
* single character match.
* First check if the current state ends at the current column. It
* may be for an empty match and a containing item might end in the
* current column.
*/
if (!syncing && !keep_state) {
check_state_ends();
if (!GA_EMPTY(&current_state)
&& syn_getcurline()[current_col] != NUL) {
++current_col;
check_state_ends();
--current_col;
}
}
} else if (can_spell != NULL)
/* Default: Only do spelling when there is no @Spell cluster or when
* ":syn spell toplevel" was used. */
*can_spell = syn_block->b_syn_spell == SYNSPL_DEFAULT
? (syn_block->b_spell_cluster_id == 0)
: (syn_block->b_syn_spell == SYNSPL_TOP);
/* nextgroup ends at end of line, unless "skipnl" or "skipempty" present */
if (current_next_list != NULL
&& syn_getcurline()[current_col + 1] == NUL
&& !(current_next_flags & (HL_SKIPNL | HL_SKIPEMPTY)))
current_next_list = NULL;
if (!GA_EMPTY(&zero_width_next_ga))
ga_clear(&zero_width_next_ga);
/* No longer need external matches. But keep next_match_extmatch. */
unref_extmatch(re_extmatch_out);
re_extmatch_out = NULL;
unref_extmatch(cur_extmatch);
return current_attr;
}
/*
* Check if we already matched pattern "idx" at the current column.
*/
static int did_match_already(int idx, garray_T *gap)
{
for (int i = current_state.ga_len; --i >= 0; ) {
if (CUR_STATE(i).si_m_startcol == (int)current_col
&& CUR_STATE(i).si_m_lnum == (int)current_lnum
&& CUR_STATE(i).si_idx == idx) {
return TRUE;
}
}
/* Zero-width matches with a nextgroup argument are not put on the syntax
* stack, and can only be matched once anyway. */
for (int i = gap->ga_len; --i >= 0; ) {
if (((int *)(gap->ga_data))[i] == idx) {
return TRUE;
}
}
return FALSE;
}
/*
* Push the next match onto the stack.
*/
static stateitem_T *push_next_match(void)
{
stateitem_T *cur_si;
synpat_T *spp;
int save_flags;
spp = &(SYN_ITEMS(syn_block)[next_match_idx]);
/*
* Push the item in current_state stack;
*/
push_current_state(next_match_idx);
{
/*
* If it's a start-skip-end type that crosses lines, figure out how
* much it continues in this line. Otherwise just fill in the length.
*/
cur_si = &CUR_STATE(current_state.ga_len - 1);
cur_si->si_h_startpos = next_match_h_startpos;
cur_si->si_m_startcol = current_col;
cur_si->si_m_lnum = current_lnum;
cur_si->si_flags = spp->sp_flags;
cur_si->si_seqnr = next_seqnr++;
cur_si->si_cchar = spp->sp_cchar;
if (current_state.ga_len > 1)
cur_si->si_flags |=
CUR_STATE(current_state.ga_len - 2).si_flags & HL_CONCEAL;
cur_si->si_next_list = spp->sp_next_list;
cur_si->si_extmatch = ref_extmatch(next_match_extmatch);
if (spp->sp_type == SPTYPE_START && !(spp->sp_flags & HL_ONELINE)) {
/* Try to find the end pattern in the current line */
update_si_end(cur_si, (int)(next_match_m_endpos.col), TRUE);
check_keepend();
} else {
cur_si->si_m_endpos = next_match_m_endpos;
cur_si->si_h_endpos = next_match_h_endpos;
cur_si->si_ends = TRUE;
cur_si->si_flags |= next_match_flags;
cur_si->si_eoe_pos = next_match_eoe_pos;
cur_si->si_end_idx = next_match_end_idx;
}
if (keepend_level < 0 && (cur_si->si_flags & HL_KEEPEND))
keepend_level = current_state.ga_len - 1;
check_keepend();
update_si_attr(current_state.ga_len - 1);
save_flags = cur_si->si_flags & (HL_CONCEAL | HL_CONCEALENDS);
/*
* If the start pattern has another highlight group, push another item
* on the stack for the start pattern.
*/
if (spp->sp_type == SPTYPE_START && spp->sp_syn_match_id != 0) {
push_current_state(next_match_idx);
cur_si = &CUR_STATE(current_state.ga_len - 1);
cur_si->si_h_startpos = next_match_h_startpos;
cur_si->si_m_startcol = current_col;
cur_si->si_m_lnum = current_lnum;
cur_si->si_m_endpos = next_match_eos_pos;
cur_si->si_h_endpos = next_match_eos_pos;
cur_si->si_ends = TRUE;
cur_si->si_end_idx = 0;
cur_si->si_flags = HL_MATCH;
cur_si->si_seqnr = next_seqnr++;
cur_si->si_flags |= save_flags;
if (cur_si->si_flags & HL_CONCEALENDS)
cur_si->si_flags |= HL_CONCEAL;
cur_si->si_next_list = NULL;
check_keepend();
update_si_attr(current_state.ga_len - 1);
}
}
next_match_idx = -1; /* try other match next time */
return cur_si;
}
/*
* Check for end of current state (and the states before it).
*/
static void check_state_ends(void)
{
stateitem_T *cur_si;
int had_extend;
cur_si = &CUR_STATE(current_state.ga_len - 1);
for (;; ) {
if (cur_si->si_ends
&& (cur_si->si_m_endpos.lnum < current_lnum
|| (cur_si->si_m_endpos.lnum == current_lnum
&& cur_si->si_m_endpos.col <= current_col))) {
/*
* If there is an end pattern group ID, highlight the end pattern
* now. No need to pop the current item from the stack.
* Only do this if the end pattern continues beyond the current
* position.
*/
if (cur_si->si_end_idx
&& (cur_si->si_eoe_pos.lnum > current_lnum
|| (cur_si->si_eoe_pos.lnum == current_lnum
&& cur_si->si_eoe_pos.col > current_col))) {
cur_si->si_idx = cur_si->si_end_idx;
cur_si->si_end_idx = 0;
cur_si->si_m_endpos = cur_si->si_eoe_pos;
cur_si->si_h_endpos = cur_si->si_eoe_pos;
cur_si->si_flags |= HL_MATCH;
cur_si->si_seqnr = next_seqnr++;
if (cur_si->si_flags & HL_CONCEALENDS)
cur_si->si_flags |= HL_CONCEAL;
update_si_attr(current_state.ga_len - 1);
/* nextgroup= should not match in the end pattern */
current_next_list = NULL;
/* what matches next may be different now, clear it */
next_match_idx = 0;
next_match_col = MAXCOL;
break;
} else {
/* handle next_list, unless at end of line and no "skipnl" or
* "skipempty" */
current_next_list = cur_si->si_next_list;
current_next_flags = cur_si->si_flags;
if (!(current_next_flags & (HL_SKIPNL | HL_SKIPEMPTY))
&& syn_getcurline()[current_col] == NUL)
current_next_list = NULL;
/* When the ended item has "extend", another item with
* "keepend" now needs to check for its end. */
had_extend = (cur_si->si_flags & HL_EXTEND);
pop_current_state();
if (GA_EMPTY(&current_state))
break;
if (had_extend && keepend_level >= 0) {
syn_update_ends(FALSE);
if (GA_EMPTY(&current_state))
break;
}
cur_si = &CUR_STATE(current_state.ga_len - 1);
/*
* Only for a region the search for the end continues after
* the end of the contained item. If the contained match
* included the end-of-line, break here, the region continues.
* Don't do this when:
* - "keepend" is used for the contained item
* - not at the end of the line (could be end="x$"me=e-1).
* - "excludenl" is used (HL_HAS_EOL won't be set)
*/
if (cur_si->si_idx >= 0
&& SYN_ITEMS(syn_block)[cur_si->si_idx].sp_type
== SPTYPE_START
&& !(cur_si->si_flags & (HL_MATCH | HL_KEEPEND))) {
update_si_end(cur_si, (int)current_col, TRUE);
check_keepend();
if ((current_next_flags & HL_HAS_EOL)
&& keepend_level < 0
&& syn_getcurline()[current_col] == NUL)
break;
}
}
} else
break;
}
}
/*
* Update an entry in the current_state stack for a match or region. This
* fills in si_attr, si_next_list and si_cont_list.
*/
static void update_si_attr(int idx)
{
stateitem_T *sip = &CUR_STATE(idx);
synpat_T *spp;
/* This should not happen... */
if (sip->si_idx < 0)
return;
spp = &(SYN_ITEMS(syn_block)[sip->si_idx]);
if (sip->si_flags & HL_MATCH)
sip->si_id = spp->sp_syn_match_id;
else
sip->si_id = spp->sp_syn.id;
sip->si_attr = syn_id2attr(sip->si_id);
sip->si_trans_id = sip->si_id;
if (sip->si_flags & HL_MATCH)
sip->si_cont_list = NULL;
else
sip->si_cont_list = spp->sp_cont_list;
/*
* For transparent items, take attr from outer item.
* Also take cont_list, if there is none.
* Don't do this for the matchgroup of a start or end pattern.
*/
if ((spp->sp_flags & HL_TRANSP) && !(sip->si_flags & HL_MATCH)) {
if (idx == 0) {
sip->si_attr = 0;
sip->si_trans_id = 0;
if (sip->si_cont_list == NULL)
sip->si_cont_list = ID_LIST_ALL;
} else {
sip->si_attr = CUR_STATE(idx - 1).si_attr;
sip->si_trans_id = CUR_STATE(idx - 1).si_trans_id;
sip->si_h_startpos = CUR_STATE(idx - 1).si_h_startpos;
sip->si_h_endpos = CUR_STATE(idx - 1).si_h_endpos;
if (sip->si_cont_list == NULL) {
sip->si_flags |= HL_TRANS_CONT;
sip->si_cont_list = CUR_STATE(idx - 1).si_cont_list;
}
}
}
}
/*
* Check the current stack for patterns with "keepend" flag.
* Propagate the match-end to contained items, until a "skipend" item is found.
*/
static void check_keepend(void)
{
int i;
lpos_T maxpos;
lpos_T maxpos_h;
stateitem_T *sip;
/*
* This check can consume a lot of time; only do it from the level where
* there really is a keepend.
*/
if (keepend_level < 0)
return;
/*
* Find the last index of an "extend" item. "keepend" items before that
* won't do anything. If there is no "extend" item "i" will be
* "keepend_level" and all "keepend" items will work normally.
*/
for (i = current_state.ga_len - 1; i > keepend_level; --i)
if (CUR_STATE(i).si_flags & HL_EXTEND)
break;
maxpos.lnum = 0;
maxpos.col = 0;
maxpos_h.lnum = 0;
maxpos_h.col = 0;
for (; i < current_state.ga_len; ++i) {
sip = &CUR_STATE(i);
if (maxpos.lnum != 0) {
limit_pos_zero(&sip->si_m_endpos, &maxpos);
limit_pos_zero(&sip->si_h_endpos, &maxpos_h);
limit_pos_zero(&sip->si_eoe_pos, &maxpos);
sip->si_ends = TRUE;
}
if (sip->si_ends && (sip->si_flags & HL_KEEPEND)) {
if (maxpos.lnum == 0
|| maxpos.lnum > sip->si_m_endpos.lnum
|| (maxpos.lnum == sip->si_m_endpos.lnum
&& maxpos.col > sip->si_m_endpos.col))
maxpos = sip->si_m_endpos;
if (maxpos_h.lnum == 0
|| maxpos_h.lnum > sip->si_h_endpos.lnum
|| (maxpos_h.lnum == sip->si_h_endpos.lnum
&& maxpos_h.col > sip->si_h_endpos.col))
maxpos_h = sip->si_h_endpos;
}
}
}
/*
* Update an entry in the current_state stack for a start-skip-end pattern.
* This finds the end of the current item, if it's in the current line.
*
* Return the flags for the matched END.
*/
static void
update_si_end (
stateitem_T *sip,
int startcol, /* where to start searching for the end */
int force /* when TRUE overrule a previous end */
)
{
lpos_T startpos;
lpos_T endpos;
lpos_T hl_endpos;
lpos_T end_endpos;
int end_idx;
/* return quickly for a keyword */
if (sip->si_idx < 0)
return;
/* Don't update when it's already done. Can be a match of an end pattern
* that started in a previous line. Watch out: can also be a "keepend"
* from a containing item. */
if (!force && sip->si_m_endpos.lnum >= current_lnum)
return;
/*
* We need to find the end of the region. It may continue in the next
* line.
*/
end_idx = 0;
startpos.lnum = current_lnum;
startpos.col = startcol;
find_endpos(sip->si_idx, &startpos, &endpos, &hl_endpos,
&(sip->si_flags), &end_endpos, &end_idx, sip->si_extmatch);
if (endpos.lnum == 0) {
/* No end pattern matched. */
if (SYN_ITEMS(syn_block)[sip->si_idx].sp_flags & HL_ONELINE) {
/* a "oneline" never continues in the next line */
sip->si_ends = TRUE;
sip->si_m_endpos.lnum = current_lnum;
sip->si_m_endpos.col = (colnr_T)STRLEN(syn_getcurline());
} else {
/* continues in the next line */
sip->si_ends = FALSE;
sip->si_m_endpos.lnum = 0;
}
sip->si_h_endpos = sip->si_m_endpos;
} else {
/* match within this line */
sip->si_m_endpos = endpos;
sip->si_h_endpos = hl_endpos;
sip->si_eoe_pos = end_endpos;
sip->si_ends = TRUE;
sip->si_end_idx = end_idx;
}
}
/*
* Add a new state to the current state stack.
* It is cleared and the index set to "idx".
*/
static void push_current_state(int idx)
{
stateitem_T *p = GA_APPEND_VIA_PTR(stateitem_T, &current_state);
memset(p, 0, sizeof(*p));
p->si_idx = idx;
}
/*
* Remove a state from the current_state stack.
*/
static void pop_current_state(void)
{
if (!GA_EMPTY(&current_state)) {
unref_extmatch(CUR_STATE(current_state.ga_len - 1).si_extmatch);
--current_state.ga_len;
}
/* after the end of a pattern, try matching a keyword or pattern */
next_match_idx = -1;
/* if first state with "keepend" is popped, reset keepend_level */
if (keepend_level >= current_state.ga_len)
keepend_level = -1;
}
/*
* Find the end of a start/skip/end syntax region after "startpos".
* Only checks one line.
* Also handles a match item that continued from a previous line.
* If not found, the syntax item continues in the next line. m_endpos->lnum
* will be 0.
* If found, the end of the region and the end of the highlighting is
* computed.
*/
static void
find_endpos (
int idx, /* index of the pattern */
lpos_T *startpos, /* where to start looking for an END match */
lpos_T *m_endpos, /* return: end of match */
lpos_T *hl_endpos, /* return: end of highlighting */
long *flagsp, /* return: flags of matching END */
lpos_T *end_endpos, /* return: end of end pattern match */
int *end_idx, /* return: group ID for end pat. match, or 0 */
reg_extmatch_T *start_ext /* submatches from the start pattern */
)
{
colnr_T matchcol;
synpat_T *spp, *spp_skip;
int start_idx;
int best_idx;
regmmatch_T regmatch;
regmmatch_T best_regmatch; /* startpos/endpos of best match */
lpos_T pos;
char_u *line;
int had_match = false;
char_u buf_chartab[32]; // chartab array for syn option iskeyword
/* just in case we are invoked for a keyword */
if (idx < 0)
return;
/*
* Check for being called with a START pattern.
* Can happen with a match that continues to the next line, because it
* contained a region.
*/
spp = &(SYN_ITEMS(syn_block)[idx]);
if (spp->sp_type != SPTYPE_START) {
*hl_endpos = *startpos;
return;
}
/*
* Find the SKIP or first END pattern after the last START pattern.
*/
for (;; ) {
spp = &(SYN_ITEMS(syn_block)[idx]);
if (spp->sp_type != SPTYPE_START)
break;
++idx;
}
/*
* Lookup the SKIP pattern (if present)
*/
if (spp->sp_type == SPTYPE_SKIP) {
spp_skip = spp;
++idx;
} else
spp_skip = NULL;
/* Setup external matches for syn_regexec(). */
unref_extmatch(re_extmatch_in);
re_extmatch_in = ref_extmatch(start_ext);
matchcol = startpos->col; // start looking for a match at sstart
start_idx = idx; // remember the first END pattern.
best_regmatch.startpos[0].col = 0; // avoid compiler warning
// use syntax iskeyword option
save_chartab(buf_chartab);
for (;; ) {
/*
* Find end pattern that matches first after "matchcol".
*/
best_idx = -1;
for (idx = start_idx; idx < syn_block->b_syn_patterns.ga_len; ++idx) {
int lc_col = matchcol;
spp = &(SYN_ITEMS(syn_block)[idx]);
if (spp->sp_type != SPTYPE_END) /* past last END pattern */
break;
lc_col -= spp->sp_offsets[SPO_LC_OFF];
if (lc_col < 0)
lc_col = 0;
regmatch.rmm_ic = spp->sp_ic;
regmatch.regprog = spp->sp_prog;
int r = syn_regexec(&regmatch, startpos->lnum, lc_col,
IF_SYN_TIME(&spp->sp_time));
spp->sp_prog = regmatch.regprog;
if (r) {
if (best_idx == -1 || regmatch.startpos[0].col
< best_regmatch.startpos[0].col) {
best_idx = idx;
best_regmatch.startpos[0] = regmatch.startpos[0];
best_regmatch.endpos[0] = regmatch.endpos[0];
}
}
}
/*
* If all end patterns have been tried, and there is no match, the
* item continues until end-of-line.
*/
if (best_idx == -1)
break;
/*
* If the skip pattern matches before the end pattern,
* continue searching after the skip pattern.
*/
if (spp_skip != NULL) {
int lc_col = matchcol - spp_skip->sp_offsets[SPO_LC_OFF];
if (lc_col < 0)
lc_col = 0;
regmatch.rmm_ic = spp_skip->sp_ic;
regmatch.regprog = spp_skip->sp_prog;
int r = syn_regexec(&regmatch, startpos->lnum, lc_col,
IF_SYN_TIME(&spp_skip->sp_time));
spp_skip->sp_prog = regmatch.regprog;
if (r && regmatch.startpos[0].col <= best_regmatch.startpos[0].col) {
// Add offset to skip pattern match
syn_add_end_off(&pos, &regmatch, spp_skip, SPO_ME_OFF, 1);
// If the skip pattern goes on to the next line, there is no
// match with an end pattern in this line.
if (pos.lnum > startpos->lnum) {
break;
}
line = ml_get_buf(syn_buf, startpos->lnum, false);
int line_len = (int)STRLEN(line);
// take care of an empty match or negative offset
if (pos.col <= matchcol) {
matchcol++;
} else if (pos.col <= regmatch.endpos[0].col) {
matchcol = pos.col;
} else {
// Be careful not to jump over the NUL at the end-of-line
for (matchcol = regmatch.endpos[0].col;
matchcol < line_len && matchcol < pos.col;
matchcol++) {
}
}
// if the skip pattern includes end-of-line, break here
if (matchcol >= line_len) {
break;
}
continue; // start with first end pattern again
}
}
/*
* Match from start pattern to end pattern.
* Correct for match and highlight offset of end pattern.
*/
spp = &(SYN_ITEMS(syn_block)[best_idx]);
syn_add_end_off(m_endpos, &best_regmatch, spp, SPO_ME_OFF, 1);
/* can't end before the start */
if (m_endpos->lnum == startpos->lnum && m_endpos->col < startpos->col)
m_endpos->col = startpos->col;
syn_add_end_off(end_endpos, &best_regmatch, spp, SPO_HE_OFF, 1);
/* can't end before the start */
if (end_endpos->lnum == startpos->lnum
&& end_endpos->col < startpos->col)
end_endpos->col = startpos->col;
/* can't end after the match */
limit_pos(end_endpos, m_endpos);
/*
* If the end group is highlighted differently, adjust the pointers.
*/
if (spp->sp_syn_match_id != spp->sp_syn.id && spp->sp_syn_match_id != 0) {
*end_idx = best_idx;
if (spp->sp_off_flags & (1 << (SPO_RE_OFF + SPO_COUNT))) {
hl_endpos->lnum = best_regmatch.endpos[0].lnum;
hl_endpos->col = best_regmatch.endpos[0].col;
} else {
hl_endpos->lnum = best_regmatch.startpos[0].lnum;
hl_endpos->col = best_regmatch.startpos[0].col;
}
hl_endpos->col += spp->sp_offsets[SPO_RE_OFF];
/* can't end before the start */
if (hl_endpos->lnum == startpos->lnum
&& hl_endpos->col < startpos->col)
hl_endpos->col = startpos->col;
limit_pos(hl_endpos, m_endpos);
/* now the match ends where the highlighting ends, it is turned
* into the matchgroup for the end */
*m_endpos = *hl_endpos;
} else {
*end_idx = 0;
*hl_endpos = *end_endpos;
}
*flagsp = spp->sp_flags;
had_match = TRUE;
break;
}
/* no match for an END pattern in this line */
if (!had_match)
m_endpos->lnum = 0;
restore_chartab(buf_chartab);
/* Remove external matches. */
unref_extmatch(re_extmatch_in);
re_extmatch_in = NULL;
}
/*
* Limit "pos" not to be after "limit".
*/
static void limit_pos(lpos_T *pos, lpos_T *limit)
{
if (pos->lnum > limit->lnum)
*pos = *limit;
else if (pos->lnum == limit->lnum && pos->col > limit->col)
pos->col = limit->col;
}
/*
* Limit "pos" not to be after "limit", unless pos->lnum is zero.
*/
static void limit_pos_zero(lpos_T *pos, lpos_T *limit)
{
if (pos->lnum == 0)
*pos = *limit;
else
limit_pos(pos, limit);
}
/*
* Add offset to matched text for end of match or highlight.
*/
static void
syn_add_end_off (
lpos_T *result, /* returned position */
regmmatch_T *regmatch, /* start/end of match */
synpat_T *spp, /* matched pattern */
int idx, /* index of offset */
int extra /* extra chars for offset to start */
)
{
int col;
int off;
char_u *base;
char_u *p;
if (spp->sp_off_flags & (1 << idx)) {
result->lnum = regmatch->startpos[0].lnum;
col = regmatch->startpos[0].col;
off = spp->sp_offsets[idx] + extra;
} else {
result->lnum = regmatch->endpos[0].lnum;
col = regmatch->endpos[0].col;
off = spp->sp_offsets[idx];
}
/* Don't go past the end of the line. Matters for "rs=e+2" when there
* is a matchgroup. Watch out for match with last NL in the buffer. */
if (result->lnum > syn_buf->b_ml.ml_line_count)
col = 0;
else if (off != 0) {
base = ml_get_buf(syn_buf, result->lnum, FALSE);
p = base + col;
if (off > 0) {
while (off-- > 0 && *p != NUL)
mb_ptr_adv(p);
} else if (off < 0) {
while (off++ < 0 && base < p)
mb_ptr_back(base, p);
}
col = (int)(p - base);
}
result->col = col;
}
/*
* Add offset to matched text for start of match or highlight.
* Avoid resulting column to become negative.
*/
static void
syn_add_start_off (
lpos_T *result, /* returned position */
regmmatch_T *regmatch, /* start/end of match */
synpat_T *spp,
int idx,
int extra /* extra chars for offset to end */
)
{
int col;
int off;
char_u *base;
char_u *p;
if (spp->sp_off_flags & (1 << (idx + SPO_COUNT))) {
result->lnum = regmatch->endpos[0].lnum;
col = regmatch->endpos[0].col;
off = spp->sp_offsets[idx] + extra;
} else {
result->lnum = regmatch->startpos[0].lnum;
col = regmatch->startpos[0].col;
off = spp->sp_offsets[idx];
}
if (result->lnum > syn_buf->b_ml.ml_line_count) {
/* a "\n" at the end of the pattern may take us below the last line */
result->lnum = syn_buf->b_ml.ml_line_count;
col = (int)STRLEN(ml_get_buf(syn_buf, result->lnum, FALSE));
}
if (off != 0) {
base = ml_get_buf(syn_buf, result->lnum, FALSE);
p = base + col;
if (off > 0) {
while (off-- && *p != NUL)
mb_ptr_adv(p);
} else if (off < 0) {
while (off++ && base < p)
mb_ptr_back(base, p);
}
col = (int)(p - base);
}
result->col = col;
}
/*
* Get current line in syntax buffer.
*/
static char_u *syn_getcurline(void)
{
return ml_get_buf(syn_buf, current_lnum, FALSE);
}
/*
* Call vim_regexec() to find a match with "rmp" in "syn_buf".
* Returns TRUE when there is a match.
*/
static int syn_regexec(regmmatch_T *rmp, linenr_T lnum, colnr_T col, syn_time_T *st)
{
int r;
proftime_T pt;
const int l_syn_time_on = syn_time_on;
if (l_syn_time_on) {
pt = profile_start();
}
rmp->rmm_maxcol = syn_buf->b_p_smc;
r = vim_regexec_multi(rmp, syn_win, syn_buf, lnum, col, NULL);
if (l_syn_time_on) {
pt = profile_end(pt);
st->total = profile_add(st->total, pt);
if (profile_cmp(pt, st->slowest) < 0) {
st->slowest = pt;
}
++st->count;
if (r > 0)
++st->match;
}
if (r > 0) {
rmp->startpos[0].lnum += lnum;
rmp->endpos[0].lnum += lnum;
return TRUE;
}
return FALSE;
}
/*
* Check one position in a line for a matching keyword.
* The caller must check if a keyword can start at startcol.
* Return it's ID if found, 0 otherwise.
*/
static int
check_keyword_id (
char_u *line,
int startcol, /* position in line to check for keyword */
int *endcolp, /* return: character after found keyword */
long *flagsp, /* return: flags of matching keyword */
short **next_listp, /* return: next_list of matching keyword */
stateitem_T *cur_si, /* item at the top of the stack */
int *ccharp /* conceal substitution char */
)
{
char_u *kwp;
int kwlen;
char_u keyword[MAXKEYWLEN + 1]; /* assume max. keyword len is 80 */
/* Find first character after the keyword. First character was already
* checked. */
kwp = line + startcol;
kwlen = 0;
do {
if (has_mbyte)
kwlen += (*mb_ptr2len)(kwp + kwlen);
else
++kwlen;
} while (vim_iswordp_buf(kwp + kwlen, syn_buf));
if (kwlen > MAXKEYWLEN)
return 0;
/*
* Must make a copy of the keyword, so we can add a NUL and make it
* lowercase.
*/
STRLCPY(keyword, kwp, kwlen + 1);
keyentry_T *kp = NULL;
// matching case
if (syn_block->b_keywtab.ht_used != 0) {
kp = match_keyword(keyword, &syn_block->b_keywtab, cur_si);
}
// ignoring case
if (kp == NULL && syn_block->b_keywtab_ic.ht_used != 0) {
str_foldcase(kwp, kwlen, keyword, MAXKEYWLEN + 1);
kp = match_keyword(keyword, &syn_block->b_keywtab_ic, cur_si);
}
if (kp != NULL) {
*endcolp = startcol + kwlen;
*flagsp = kp->flags;
*next_listp = kp->next_list;
*ccharp = kp->k_char;
return kp->k_syn.id;
}
return 0;
}
/// Find keywords that match. There can be several with different
/// attributes.
/// When current_next_list is non-zero accept only that group, otherwise:
/// Accept a not-contained keyword at toplevel.
/// Accept a keyword at other levels only if it is in the contains list.
static keyentry_T *match_keyword(char_u *keyword, hashtab_T *ht,
stateitem_T *cur_si)
{
hashitem_T *hi = hash_find(ht, keyword);
if (!HASHITEM_EMPTY(hi))
for (keyentry_T *kp = HI2KE(hi); kp != NULL; kp = kp->ke_next) {
if (current_next_list != 0
? in_id_list(NULL, current_next_list, &kp->k_syn, 0)
: (cur_si == NULL
? !(kp->flags & HL_CONTAINED)
: in_id_list(cur_si, cur_si->si_cont_list,
&kp->k_syn, kp->flags & HL_CONTAINED))) {
return kp;
}
}
return NULL;
}
/*
* Handle ":syntax conceal" command.
*/
static void syn_cmd_conceal(exarg_T *eap, int syncing)
{
char_u *arg = eap->arg;
char_u *next;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
next = skiptowhite(arg);
if (STRNICMP(arg, "on", 2) == 0 && next - arg == 2)
curwin->w_s->b_syn_conceal = TRUE;
else if (STRNICMP(arg, "off", 3) == 0 && next - arg == 3)
curwin->w_s->b_syn_conceal = FALSE;
else
EMSG2(_("E390: Illegal argument: %s"), arg);
}
/*
* Handle ":syntax case" command.
*/
static void syn_cmd_case(exarg_T *eap, int syncing)
{
char_u *arg = eap->arg;
char_u *next;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
next = skiptowhite(arg);
if (STRNICMP(arg, "match", 5) == 0 && next - arg == 5)
curwin->w_s->b_syn_ic = FALSE;
else if (STRNICMP(arg, "ignore", 6) == 0 && next - arg == 6)
curwin->w_s->b_syn_ic = TRUE;
else
EMSG2(_("E390: Illegal argument: %s"), arg);
}
/*
* Handle ":syntax spell" command.
*/
static void syn_cmd_spell(exarg_T *eap, int syncing)
{
char_u *arg = eap->arg;
char_u *next;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
next = skiptowhite(arg);
if (STRNICMP(arg, "toplevel", 8) == 0 && next - arg == 8) {
curwin->w_s->b_syn_spell = SYNSPL_TOP;
} else if (STRNICMP(arg, "notoplevel", 10) == 0 && next - arg == 10) {
curwin->w_s->b_syn_spell = SYNSPL_NOTOP;
} else if (STRNICMP(arg, "default", 7) == 0 && next - arg == 7) {
curwin->w_s->b_syn_spell = SYNSPL_DEFAULT;
} else {
EMSG2(_("E390: Illegal argument: %s"), arg);
return;
}
// assume spell checking changed, force a redraw
redraw_win_later(curwin, NOT_VALID);
}
/// Handle ":syntax iskeyword" command.
static void syn_cmd_iskeyword(exarg_T *eap, int syncing)
{
char_u *arg = eap->arg;
char_u save_chartab[32];
char_u *save_isk;
if (eap->skip) {
return;
}
arg = skipwhite(arg);
if (*arg == NUL) {
MSG_PUTS("\n");
MSG_PUTS(_("syntax iskeyword "));
if (curwin->w_s->b_syn_isk != empty_option) {
msg_outtrans(curwin->w_s->b_syn_isk);
} else {
msg_outtrans((char_u *)"not set");
}
} else {
if (STRNICMP(arg, "clear", 5) == 0) {
memmove(curwin->w_s->b_syn_chartab, curbuf->b_chartab, (size_t)32);
clear_string_option(&curwin->w_s->b_syn_isk);
} else {
memmove(save_chartab, curbuf->b_chartab, (size_t)32);
save_isk = curbuf->b_p_isk;
curbuf->b_p_isk = vim_strsave(arg);
buf_init_chartab(curbuf, false);
memmove(curwin->w_s->b_syn_chartab, curbuf->b_chartab, (size_t)32);
memmove(curbuf->b_chartab, save_chartab, (size_t)32);
clear_string_option(&curwin->w_s->b_syn_isk);
curwin->w_s->b_syn_isk = curbuf->b_p_isk;
curbuf->b_p_isk = save_isk;
}
}
redraw_win_later(curwin, NOT_VALID);
}
/*
* Clear all syntax info for one buffer.
*/
void syntax_clear(synblock_T *block)
{
block->b_syn_error = FALSE; /* clear previous error */
block->b_syn_ic = FALSE; /* Use case, by default */
block->b_syn_spell = SYNSPL_DEFAULT; /* default spell checking */
block->b_syn_containedin = FALSE;
/* free the keywords */
clear_keywtab(&block->b_keywtab);
clear_keywtab(&block->b_keywtab_ic);
/* free the syntax patterns */
for (int i = block->b_syn_patterns.ga_len; --i >= 0; ) {
syn_clear_pattern(block, i);
}
ga_clear(&block->b_syn_patterns);
/* free the syntax clusters */
for (int i = block->b_syn_clusters.ga_len; --i >= 0; ) {
syn_clear_cluster(block, i);
}
ga_clear(&block->b_syn_clusters);
block->b_spell_cluster_id = 0;
block->b_nospell_cluster_id = 0;
block->b_syn_sync_flags = 0;
block->b_syn_sync_minlines = 0;
block->b_syn_sync_maxlines = 0;
block->b_syn_sync_linebreaks = 0;
vim_regfree(block->b_syn_linecont_prog);
block->b_syn_linecont_prog = NULL;
xfree(block->b_syn_linecont_pat);
block->b_syn_linecont_pat = NULL;
block->b_syn_folditems = 0;
clear_string_option(&block->b_syn_isk);
/* free the stored states */
syn_stack_free_all(block);
invalidate_current_state();
/* Reset the counter for ":syn include" */
running_syn_inc_tag = 0;
}
/*
* Get rid of ownsyntax for window "wp".
*/
void reset_synblock(win_T *wp)
{
if (wp->w_s != &wp->w_buffer->b_s) {
syntax_clear(wp->w_s);
xfree(wp->w_s);
wp->w_s = &wp->w_buffer->b_s;
}
}
/*
* Clear syncing info for one buffer.
*/
static void syntax_sync_clear(void)
{
/* free the syntax patterns */
for (int i = curwin->w_s->b_syn_patterns.ga_len; --i >= 0; ) {
if (SYN_ITEMS(curwin->w_s)[i].sp_syncing) {
syn_remove_pattern(curwin->w_s, i);
}
}
curwin->w_s->b_syn_sync_flags = 0;
curwin->w_s->b_syn_sync_minlines = 0;
curwin->w_s->b_syn_sync_maxlines = 0;
curwin->w_s->b_syn_sync_linebreaks = 0;
vim_regfree(curwin->w_s->b_syn_linecont_prog);
curwin->w_s->b_syn_linecont_prog = NULL;
xfree(curwin->w_s->b_syn_linecont_pat);
curwin->w_s->b_syn_linecont_pat = NULL;
clear_string_option(&curwin->w_s->b_syn_isk);
syn_stack_free_all(curwin->w_s); /* Need to recompute all syntax. */
}
/*
* Remove one pattern from the buffer's pattern list.
*/
static void syn_remove_pattern(synblock_T *block, int idx)
{
synpat_T *spp;
spp = &(SYN_ITEMS(block)[idx]);
if (spp->sp_flags & HL_FOLD)
--block->b_syn_folditems;
syn_clear_pattern(block, idx);
memmove(spp, spp + 1,
sizeof(synpat_T) * (block->b_syn_patterns.ga_len - idx - 1));
--block->b_syn_patterns.ga_len;
}
/*
* Clear and free one syntax pattern. When clearing all, must be called from
* last to first!
*/
static void syn_clear_pattern(synblock_T *block, int i)
{
xfree(SYN_ITEMS(block)[i].sp_pattern);
vim_regfree(SYN_ITEMS(block)[i].sp_prog);
/* Only free sp_cont_list and sp_next_list of first start pattern */
if (i == 0 || SYN_ITEMS(block)[i - 1].sp_type != SPTYPE_START) {
xfree(SYN_ITEMS(block)[i].sp_cont_list);
xfree(SYN_ITEMS(block)[i].sp_next_list);
xfree(SYN_ITEMS(block)[i].sp_syn.cont_in_list);
}
}
/*
* Clear and free one syntax cluster.
*/
static void syn_clear_cluster(synblock_T *block, int i)
{
xfree(SYN_CLSTR(block)[i].scl_name);
xfree(SYN_CLSTR(block)[i].scl_name_u);
xfree(SYN_CLSTR(block)[i].scl_list);
}
/*
* Handle ":syntax clear" command.
*/
static void syn_cmd_clear(exarg_T *eap, int syncing)
{
char_u *arg = eap->arg;
char_u *arg_end;
int id;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
/*
* We have to disable this within ":syn include @group filename",
* because otherwise @group would get deleted.
* Only required for Vim 5.x syntax files, 6.0 ones don't contain ":syn
* clear".
*/
if (curwin->w_s->b_syn_topgrp != 0)
return;
if (ends_excmd(*arg)) {
/*
* No argument: Clear all syntax items.
*/
if (syncing)
syntax_sync_clear();
else {
syntax_clear(curwin->w_s);
if (curwin->w_s == &curwin->w_buffer->b_s) {
do_unlet(S_LEN("b:current_syntax"), true);
}
do_unlet(S_LEN("w:current_syntax"), true);
}
} else {
/*
* Clear the group IDs that are in the argument.
*/
while (!ends_excmd(*arg)) {
arg_end = skiptowhite(arg);
if (*arg == '@') {
id = syn_scl_namen2id(arg + 1, (int)(arg_end - arg - 1));
if (id == 0) {
EMSG2(_("E391: No such syntax cluster: %s"), arg);
break;
} else {
/*
* We can't physically delete a cluster without changing
* the IDs of other clusters, so we do the next best thing
* and make it empty.
*/
short scl_id = id - SYNID_CLUSTER;
xfree(SYN_CLSTR(curwin->w_s)[scl_id].scl_list);
SYN_CLSTR(curwin->w_s)[scl_id].scl_list = NULL;
}
} else {
id = syn_namen2id(arg, (int)(arg_end - arg));
if (id == 0) {
EMSG2(_(e_nogroup), arg);
break;
} else
syn_clear_one(id, syncing);
}
arg = skipwhite(arg_end);
}
}
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curwin->w_s); /* Need to recompute all syntax. */
}
/*
* Clear one syntax group for the current buffer.
*/
static void syn_clear_one(int id, int syncing)
{
synpat_T *spp;
/* Clear keywords only when not ":syn sync clear group-name" */
if (!syncing) {
syn_clear_keyword(id, &curwin->w_s->b_keywtab);
syn_clear_keyword(id, &curwin->w_s->b_keywtab_ic);
}
/* clear the patterns for "id" */
for (int idx = curwin->w_s->b_syn_patterns.ga_len; --idx >= 0; ) {
spp = &(SYN_ITEMS(curwin->w_s)[idx]);
if (spp->sp_syn.id != id || spp->sp_syncing != syncing)
continue;
syn_remove_pattern(curwin->w_s, idx);
}
}
/*
* Handle ":syntax on" command.
*/
static void syn_cmd_on(exarg_T *eap, int syncing)
{
syn_cmd_onoff(eap, "syntax");
}
/*
* Handle ":syntax enable" command.
*/
static void syn_cmd_enable(exarg_T *eap, int syncing)
{
set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"enable");
syn_cmd_onoff(eap, "syntax");
do_unlet(S_LEN("g:syntax_cmd"), true);
}
/*
* Handle ":syntax reset" command.
* It actually resets highlighting, not syntax.
*/
static void syn_cmd_reset(exarg_T *eap, int syncing)
{
eap->nextcmd = check_nextcmd(eap->arg);
if (!eap->skip) {
set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"reset");
do_cmdline_cmd("runtime! syntax/syncolor.vim");
do_unlet(S_LEN("g:syntax_cmd"), true);
}
}
/*
* Handle ":syntax manual" command.
*/
static void syn_cmd_manual(exarg_T *eap, int syncing)
{
syn_cmd_onoff(eap, "manual");
}
/*
* Handle ":syntax off" command.
*/
static void syn_cmd_off(exarg_T *eap, int syncing)
{
syn_cmd_onoff(eap, "nosyntax");
}
static void syn_cmd_onoff(exarg_T *eap, char *name)
FUNC_ATTR_NONNULL_ALL
{
did_syntax_onoff = true;
eap->nextcmd = check_nextcmd(eap->arg);
if (!eap->skip) {
char buf[100];
memcpy(buf, "so ", 4);
vim_snprintf(buf + 3, sizeof(buf) - 3, SYNTAX_FNAME, name);
do_cmdline_cmd(buf);
}
}
void syn_maybe_on(void)
{
if (!did_syntax_onoff) {
exarg_T ea;
ea.arg = (char_u *)"";
ea.skip = false;
syn_cmd_onoff(&ea, "syntax");
}
}
/*
* Handle ":syntax [list]" command: list current syntax words.
*/
static void
syn_cmd_list (
exarg_T *eap,
int syncing /* when TRUE: list syncing items */
)
{
char_u *arg = eap->arg;
char_u *arg_end;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
if (!syntax_present(curwin)) {
MSG(_(msg_no_items));
return;
}
if (syncing) {
if (curwin->w_s->b_syn_sync_flags & SF_CCOMMENT) {
MSG_PUTS(_("syncing on C-style comments"));
syn_lines_msg();
syn_match_msg();
return;
} else if (!(curwin->w_s->b_syn_sync_flags & SF_MATCH)) {
if (curwin->w_s->b_syn_sync_minlines == 0)
MSG_PUTS(_("no syncing"));
else {
MSG_PUTS(_("syncing starts "));
msg_outnum(curwin->w_s->b_syn_sync_minlines);
MSG_PUTS(_(" lines before top line"));
syn_match_msg();
}
return;
}
MSG_PUTS_TITLE(_("\n--- Syntax sync items ---"));
if (curwin->w_s->b_syn_sync_minlines > 0
|| curwin->w_s->b_syn_sync_maxlines > 0
|| curwin->w_s->b_syn_sync_linebreaks > 0) {
MSG_PUTS(_("\nsyncing on items"));
syn_lines_msg();
syn_match_msg();
}
} else
MSG_PUTS_TITLE(_("\n--- Syntax items ---"));
if (ends_excmd(*arg)) {
/*
* No argument: List all group IDs and all syntax clusters.
*/
for (int id = 1; id <= highlight_ga.ga_len && !got_int; ++id) {
syn_list_one(id, syncing, FALSE);
}
for (int id = 0; id < curwin->w_s->b_syn_clusters.ga_len && !got_int; ++id) {
syn_list_cluster(id);
}
} else {
/*
* List the group IDs and syntax clusters that are in the argument.
*/
while (!ends_excmd(*arg) && !got_int) {
arg_end = skiptowhite(arg);
if (*arg == '@') {
int id = syn_scl_namen2id(arg + 1, (int)(arg_end - arg - 1));
if (id == 0)
EMSG2(_("E392: No such syntax cluster: %s"), arg);
else
syn_list_cluster(id - SYNID_CLUSTER);
} else {
int id = syn_namen2id(arg, (int)(arg_end - arg));
if (id == 0)
EMSG2(_(e_nogroup), arg);
else
syn_list_one(id, syncing, TRUE);
}
arg = skipwhite(arg_end);
}
}
eap->nextcmd = check_nextcmd(arg);
}
static void syn_lines_msg(void)
{
if (curwin->w_s->b_syn_sync_maxlines > 0
|| curwin->w_s->b_syn_sync_minlines > 0) {
MSG_PUTS("; ");
if (curwin->w_s->b_syn_sync_minlines > 0) {
MSG_PUTS(_("minimal "));
msg_outnum(curwin->w_s->b_syn_sync_minlines);
if (curwin->w_s->b_syn_sync_maxlines)
MSG_PUTS(", ");
}
if (curwin->w_s->b_syn_sync_maxlines > 0) {
MSG_PUTS(_("maximal "));
msg_outnum(curwin->w_s->b_syn_sync_maxlines);
}
MSG_PUTS(_(" lines before top line"));
}
}
static void syn_match_msg(void)
{
if (curwin->w_s->b_syn_sync_linebreaks > 0) {
MSG_PUTS(_("; match "));
msg_outnum(curwin->w_s->b_syn_sync_linebreaks);
MSG_PUTS(_(" line breaks"));
}
}
static int last_matchgroup;
/*
* List one syntax item, for ":syntax" or "syntax list syntax_name".
*/
static void
syn_list_one (
int id,
int syncing, /* when TRUE: list syncing items */
int link_only /* when TRUE; list link-only too */
)
{
int attr;
int did_header = FALSE;
synpat_T *spp;
static struct name_list namelist1[] =
{
{HL_DISPLAY, "display"},
{HL_CONTAINED, "contained"},
{HL_ONELINE, "oneline"},
{HL_KEEPEND, "keepend"},
{HL_EXTEND, "extend"},
{HL_EXCLUDENL, "excludenl"},
{HL_TRANSP, "transparent"},
{HL_FOLD, "fold"},
{HL_CONCEAL, "conceal"},
{HL_CONCEALENDS, "concealends"},
{0, NULL}
};
static struct name_list namelist2[] =
{
{HL_SKIPWHITE, "skipwhite"},
{HL_SKIPNL, "skipnl"},
{HL_SKIPEMPTY, "skipempty"},
{0, NULL}
};
attr = hl_attr(HLF_D); /* highlight like directories */
/* list the keywords for "id" */
if (!syncing) {
did_header = syn_list_keywords(id, &curwin->w_s->b_keywtab, FALSE, attr);
did_header = syn_list_keywords(id, &curwin->w_s->b_keywtab_ic,
did_header, attr);
}
/* list the patterns for "id" */
for (int idx = 0; idx < curwin->w_s->b_syn_patterns.ga_len && !got_int; ++idx) {
spp = &(SYN_ITEMS(curwin->w_s)[idx]);
if (spp->sp_syn.id != id || spp->sp_syncing != syncing)
continue;
(void)syn_list_header(did_header, 999, id);
did_header = TRUE;
last_matchgroup = 0;
if (spp->sp_type == SPTYPE_MATCH) {
put_pattern("match", ' ', spp, attr);
msg_putchar(' ');
} else if (spp->sp_type == SPTYPE_START) {
while (SYN_ITEMS(curwin->w_s)[idx].sp_type == SPTYPE_START)
put_pattern("start", '=', &SYN_ITEMS(curwin->w_s)[idx++], attr);
if (SYN_ITEMS(curwin->w_s)[idx].sp_type == SPTYPE_SKIP)
put_pattern("skip", '=', &SYN_ITEMS(curwin->w_s)[idx++], attr);
while (idx < curwin->w_s->b_syn_patterns.ga_len
&& SYN_ITEMS(curwin->w_s)[idx].sp_type == SPTYPE_END)
put_pattern("end", '=', &SYN_ITEMS(curwin->w_s)[idx++], attr);
--idx;
msg_putchar(' ');
}
syn_list_flags(namelist1, spp->sp_flags, attr);
if (spp->sp_cont_list != NULL) {
put_id_list("contains", spp->sp_cont_list, attr);
}
if (spp->sp_syn.cont_in_list != NULL) {
put_id_list("containedin", spp->sp_syn.cont_in_list, attr);
}
if (spp->sp_next_list != NULL) {
put_id_list("nextgroup", spp->sp_next_list, attr);
syn_list_flags(namelist2, spp->sp_flags, attr);
}
if (spp->sp_flags & (HL_SYNC_HERE|HL_SYNC_THERE)) {
if (spp->sp_flags & HL_SYNC_HERE) {
msg_puts_attr("grouphere", attr);
} else {
msg_puts_attr("groupthere", attr);
}
msg_putchar(' ');
if (spp->sp_sync_idx >= 0)
msg_outtrans(HL_TABLE()[SYN_ITEMS(curwin->w_s)
[spp->sp_sync_idx].sp_syn.id - 1].sg_name);
else
MSG_PUTS("NONE");
msg_putchar(' ');
}
}
/* list the link, if there is one */
if (HL_TABLE()[id - 1].sg_link && (did_header || link_only) && !got_int) {
(void)syn_list_header(did_header, 999, id);
msg_puts_attr("links to", attr);
msg_putchar(' ');
msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name);
}
}
static void syn_list_flags(struct name_list *nlist, int flags, int attr)
{
int i;
for (i = 0; nlist[i].flag != 0; ++i)
if (flags & nlist[i].flag) {
msg_puts_attr(nlist[i].name, attr);
msg_putchar(' ');
}
}
/*
* List one syntax cluster, for ":syntax" or "syntax list syntax_name".
*/
static void syn_list_cluster(int id)
{
int endcol = 15;
/* slight hack: roughly duplicate the guts of syn_list_header() */
msg_putchar('\n');
msg_outtrans(SYN_CLSTR(curwin->w_s)[id].scl_name);
if (msg_col >= endcol) /* output at least one space */
endcol = msg_col + 1;
if (Columns <= endcol) /* avoid hang for tiny window */
endcol = Columns - 1;
msg_advance(endcol);
if (SYN_CLSTR(curwin->w_s)[id].scl_list != NULL) {
put_id_list("cluster", SYN_CLSTR(curwin->w_s)[id].scl_list, hl_attr(HLF_D));
} else {
msg_puts_attr("cluster", hl_attr(HLF_D));
msg_puts("=NONE");
}
}
static void put_id_list(const char *name,
short *list, // NOLINT(runtime/int)
int attr)
{
short *p;
msg_puts_attr(name, attr);
msg_putchar('=');
for (p = list; *p; ++p) {
if (*p >= SYNID_ALLBUT && *p < SYNID_TOP) {
if (p[1]) {
msg_puts("ALLBUT");
} else {
msg_puts("ALL");
}
} else if (*p >= SYNID_TOP && *p < SYNID_CONTAINED) {
msg_puts("TOP");
} else if (*p >= SYNID_CONTAINED && *p < SYNID_CLUSTER) {
msg_puts("CONTAINED");
} else if (*p >= SYNID_CLUSTER) {
short scl_id = *p - SYNID_CLUSTER;
msg_putchar('@');
msg_outtrans(SYN_CLSTR(curwin->w_s)[scl_id].scl_name);
} else
msg_outtrans(HL_TABLE()[*p - 1].sg_name);
if (p[1])
msg_putchar(',');
}
msg_putchar(' ');
}
static void put_pattern(char *s, int c, synpat_T *spp, int attr)
{
long n;
int mask;
int first;
static char *sepchars = "/+=-#@\"|'^&";
int i;
/* May have to write "matchgroup=group" */
if (last_matchgroup != spp->sp_syn_match_id) {
last_matchgroup = spp->sp_syn_match_id;
msg_puts_attr("matchgroup", attr);
msg_putchar('=');
if (last_matchgroup == 0)
msg_outtrans((char_u *)"NONE");
else
msg_outtrans(HL_TABLE()[last_matchgroup - 1].sg_name);
msg_putchar(' ');
}
// Output the name of the pattern and an '=' or ' '.
msg_puts_attr(s, attr);
msg_putchar(c);
/* output the pattern, in between a char that is not in the pattern */
for (i = 0; vim_strchr(spp->sp_pattern, sepchars[i]) != NULL; )
if (sepchars[++i] == NUL) {
i = 0; /* no good char found, just use the first one */
break;
}
msg_putchar(sepchars[i]);
msg_outtrans(spp->sp_pattern);
msg_putchar(sepchars[i]);
/* output any pattern options */
first = TRUE;
for (i = 0; i < SPO_COUNT; ++i) {
mask = (1 << i);
if (!(spp->sp_off_flags & (mask + (mask << SPO_COUNT)))) {
continue;
}
if (!first) {
msg_putchar(','); // Separate with commas.
}
msg_puts(spo_name_tab[i]);
n = spp->sp_offsets[i];
if (i != SPO_LC_OFF) {
if (spp->sp_off_flags & mask)
msg_putchar('s');
else
msg_putchar('e');
if (n > 0)
msg_putchar('+');
}
if (n || i == SPO_LC_OFF)
msg_outnum(n);
first = FALSE;
}
msg_putchar(' ');
}
/*
* List or clear the keywords for one syntax group.
* Return TRUE if the header has been printed.
*/
static int
syn_list_keywords (
int id,
hashtab_T *ht,
int did_header, /* header has already been printed */
int attr
)
{
int outlen;
hashitem_T *hi;
keyentry_T *kp;
int todo;
int prev_contained = 0;
short *prev_next_list = NULL;
short *prev_cont_in_list = NULL;
int prev_skipnl = 0;
int prev_skipwhite = 0;
int prev_skipempty = 0;
/*
* Unfortunately, this list of keywords is not sorted on alphabet but on
* hash value...
*/
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0 && !got_int; ++hi) {
if (HASHITEM_EMPTY(hi)) {
continue;
}
--todo;
for (kp = HI2KE(hi); kp != NULL && !got_int; kp = kp->ke_next) {
if (kp->k_syn.id == id) {
if (prev_contained != (kp->flags & HL_CONTAINED)
|| prev_skipnl != (kp->flags & HL_SKIPNL)
|| prev_skipwhite != (kp->flags & HL_SKIPWHITE)
|| prev_skipempty != (kp->flags & HL_SKIPEMPTY)
|| prev_cont_in_list != kp->k_syn.cont_in_list
|| prev_next_list != kp->next_list)
outlen = 9999;
else
outlen = (int)STRLEN(kp->keyword);
/* output "contained" and "nextgroup" on each line */
if (syn_list_header(did_header, outlen, id)) {
prev_contained = 0;
prev_next_list = NULL;
prev_cont_in_list = NULL;
prev_skipnl = 0;
prev_skipwhite = 0;
prev_skipempty = 0;
}
did_header = TRUE;
if (prev_contained != (kp->flags & HL_CONTAINED)) {
msg_puts_attr("contained", attr);
msg_putchar(' ');
prev_contained = (kp->flags & HL_CONTAINED);
}
if (kp->k_syn.cont_in_list != prev_cont_in_list) {
put_id_list("containedin", kp->k_syn.cont_in_list, attr);
msg_putchar(' ');
prev_cont_in_list = kp->k_syn.cont_in_list;
}
if (kp->next_list != prev_next_list) {
put_id_list("nextgroup", kp->next_list, attr);
msg_putchar(' ');
prev_next_list = kp->next_list;
if (kp->flags & HL_SKIPNL) {
msg_puts_attr("skipnl", attr);
msg_putchar(' ');
prev_skipnl = (kp->flags & HL_SKIPNL);
}
if (kp->flags & HL_SKIPWHITE) {
msg_puts_attr("skipwhite", attr);
msg_putchar(' ');
prev_skipwhite = (kp->flags & HL_SKIPWHITE);
}
if (kp->flags & HL_SKIPEMPTY) {
msg_puts_attr("skipempty", attr);
msg_putchar(' ');
prev_skipempty = (kp->flags & HL_SKIPEMPTY);
}
}
msg_outtrans(kp->keyword);
}
}
}
return did_header;
}
static void syn_clear_keyword(int id, hashtab_T *ht)
{
hashitem_T *hi;
keyentry_T *kp;
keyentry_T *kp_prev;
keyentry_T *kp_next;
int todo;
hash_lock(ht);
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0; ++hi) {
if (HASHITEM_EMPTY(hi)) {
continue;
}
--todo;
kp_prev = NULL;
for (kp = HI2KE(hi); kp != NULL; ) {
if (kp->k_syn.id == id) {
kp_next = kp->ke_next;
if (kp_prev == NULL) {
if (kp_next == NULL)
hash_remove(ht, hi);
else
hi->hi_key = KE2HIKEY(kp_next);
} else
kp_prev->ke_next = kp_next;
xfree(kp->next_list);
xfree(kp->k_syn.cont_in_list);
xfree(kp);
kp = kp_next;
} else {
kp_prev = kp;
kp = kp->ke_next;
}
}
}
hash_unlock(ht);
}
/*
* Clear a whole keyword table.
*/
static void clear_keywtab(hashtab_T *ht)
{
hashitem_T *hi;
int todo;
keyentry_T *kp;
keyentry_T *kp_next;
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0; ++hi) {
if (!HASHITEM_EMPTY(hi)) {
--todo;
for (kp = HI2KE(hi); kp != NULL; kp = kp_next) {
kp_next = kp->ke_next;
xfree(kp->next_list);
xfree(kp->k_syn.cont_in_list);
xfree(kp);
}
}
}
hash_clear(ht);
hash_init(ht);
}
/// Add a keyword to the list of keywords.
///
/// @param name name of keyword
/// @param id group ID for this keyword
/// @param flags flags for this keyword
/// @param cont_in_list containedin for this keyword
/// @param next_list nextgroup for this keyword
static void add_keyword(char_u *name,
int id,
int flags,
short *cont_in_list,
short *next_list,
int conceal_char)
{
char_u name_folded[MAXKEYWLEN + 1];
char_u *name_ic = (curwin->w_s->b_syn_ic)
? str_foldcase(name, (int)STRLEN(name), name_folded, sizeof(name_folded))
: name;
keyentry_T *kp = xmalloc(sizeof(keyentry_T) + STRLEN(name_ic));
STRCPY(kp->keyword, name_ic);
kp->k_syn.id = id;
kp->k_syn.inc_tag = current_syn_inc_tag;
kp->flags = flags;
kp->k_char = conceal_char;
kp->k_syn.cont_in_list = copy_id_list(cont_in_list);
if (cont_in_list != NULL) {
curwin->w_s->b_syn_containedin = TRUE;
}
kp->next_list = copy_id_list(next_list);
hash_T hash = hash_hash(kp->keyword);
hashtab_T *ht = (curwin->w_s->b_syn_ic) ? &curwin->w_s->b_keywtab_ic
: &curwin->w_s->b_keywtab;
hashitem_T *hi = hash_lookup(ht, (const char *)kp->keyword,
STRLEN(kp->keyword), hash);
// even though it looks like only the kp->keyword member is
// being used here, vim uses some pointer trickery to get the orignal
// struct again later by using knowledge of the offset of the keyword
// field in the struct. See the definition of the HI2KE macro.
if (HASHITEM_EMPTY(hi)) {
// new keyword, add to hashtable
kp->ke_next = NULL;
hash_add_item(ht, hi, kp->keyword, hash);
} else {
// keyword already exists, prepend to list
kp->ke_next = HI2KE(hi);
hi->hi_key = KE2HIKEY(kp);
}
}
/*
* Get the start and end of the group name argument.
* Return a pointer to the first argument.
* Return NULL if the end of the command was found instead of further args.
*/
static char_u *
get_group_name (
char_u *arg, /* start of the argument */
char_u **name_end /* pointer to end of the name */
)
{
char_u *rest;
*name_end = skiptowhite(arg);
rest = skipwhite(*name_end);
/*
* Check if there are enough arguments. The first argument may be a
* pattern, where '|' is allowed, so only check for NUL.
*/
if (ends_excmd(*arg) || *rest == NUL)
return NULL;
return rest;
}
/*
* Check for syntax command option arguments.
* This can be called at any place in the list of arguments, and just picks
* out the arguments that are known. Can be called several times in a row to
* collect all options in between other arguments.
* Return a pointer to the next argument (which isn't an option).
* Return NULL for any error;
*/
static char_u *
get_syn_options (
char_u *arg, /* next argument to be checked */
syn_opt_arg_T *opt, /* various things */
int *conceal_char
)
{
char_u *gname_start, *gname;
int syn_id;
int len;
char *p;
int fidx;
static struct flag {
char *name;
int argtype;
int flags;
} flagtab[] = { {"cCoOnNtTaAiInNeEdD", 0, HL_CONTAINED},
{"oOnNeElLiInNeE", 0, HL_ONELINE},
{"kKeEeEpPeEnNdD", 0, HL_KEEPEND},
{"eExXtTeEnNdD", 0, HL_EXTEND},
{"eExXcClLuUdDeEnNlL", 0, HL_EXCLUDENL},
{"tTrRaAnNsSpPaArReEnNtT", 0, HL_TRANSP},
{"sSkKiIpPnNlL", 0, HL_SKIPNL},
{"sSkKiIpPwWhHiItTeE", 0, HL_SKIPWHITE},
{"sSkKiIpPeEmMpPtTyY", 0, HL_SKIPEMPTY},
{"gGrRoOuUpPhHeErReE", 0, HL_SYNC_HERE},
{"gGrRoOuUpPtThHeErReE", 0, HL_SYNC_THERE},
{"dDiIsSpPlLaAyY", 0, HL_DISPLAY},
{"fFoOlLdD", 0, HL_FOLD},
{"cCoOnNcCeEaAlL", 0, HL_CONCEAL},
{"cCoOnNcCeEaAlLeEnNdDsS", 0, HL_CONCEALENDS},
{"cCcChHaArR", 11, 0},
{"cCoOnNtTaAiInNsS", 1, 0},
{"cCoOnNtTaAiInNeEdDiInN", 2, 0},
{"nNeExXtTgGrRoOuUpP", 3, 0},};
static char *first_letters = "cCoOkKeEtTsSgGdDfFnN";
if (arg == NULL) /* already detected error */
return NULL;
if (curwin->w_s->b_syn_conceal)
opt->flags |= HL_CONCEAL;
for (;; ) {
/*
* This is used very often when a large number of keywords is defined.
* Need to skip quickly when no option name is found.
* Also avoid tolower(), it's slow.
*/
if (strchr(first_letters, *arg) == NULL)
break;
for (fidx = ARRAY_SIZE(flagtab); --fidx >= 0; ) {
p = flagtab[fidx].name;
int i;
for (i = 0, len = 0; p[i] != NUL; i += 2, ++len)
if (arg[len] != p[i] && arg[len] != p[i + 1])
break;
if (p[i] == NUL && (ascii_iswhite(arg[len])
|| (flagtab[fidx].argtype > 0
? arg[len] == '='
: ends_excmd(arg[len])))) {
if (opt->keyword
&& (flagtab[fidx].flags == HL_DISPLAY
|| flagtab[fidx].flags == HL_FOLD
|| flagtab[fidx].flags == HL_EXTEND))
/* treat "display", "fold" and "extend" as a keyword */
fidx = -1;
break;
}
}
if (fidx < 0) /* no match found */
break;
if (flagtab[fidx].argtype == 1) {
if (!opt->has_cont_list) {
EMSG(_("E395: contains argument not accepted here"));
return NULL;
}
if (get_id_list(&arg, 8, &opt->cont_list) == FAIL)
return NULL;
} else if (flagtab[fidx].argtype == 2) {
if (get_id_list(&arg, 11, &opt->cont_in_list) == FAIL)
return NULL;
} else if (flagtab[fidx].argtype == 3) {
if (get_id_list(&arg, 9, &opt->next_list) == FAIL)
return NULL;
} else if (flagtab[fidx].argtype == 11 && arg[5] == '=') {
/* cchar=? */
if (has_mbyte) {
*conceal_char = mb_ptr2char(arg + 6);
arg += mb_ptr2len(arg + 6) - 1;
} else {
*conceal_char = arg[6];
}
if (!vim_isprintc_strict(*conceal_char)) {
EMSG(_("E844: invalid cchar value"));
return NULL;
}
arg = skipwhite(arg + 7);
} else {
opt->flags |= flagtab[fidx].flags;
arg = skipwhite(arg + len);
if (flagtab[fidx].flags == HL_SYNC_HERE
|| flagtab[fidx].flags == HL_SYNC_THERE) {
if (opt->sync_idx == NULL) {
EMSG(_("E393: group[t]here not accepted here"));
return NULL;
}
gname_start = arg;
arg = skiptowhite(arg);
if (gname_start == arg)
return NULL;
gname = vim_strnsave(gname_start, (int)(arg - gname_start));
if (STRCMP(gname, "NONE") == 0)
*opt->sync_idx = NONE_IDX;
else {
syn_id = syn_name2id(gname);
int i;
for (i = curwin->w_s->b_syn_patterns.ga_len; --i >= 0; )
if (SYN_ITEMS(curwin->w_s)[i].sp_syn.id == syn_id
&& SYN_ITEMS(curwin->w_s)[i].sp_type == SPTYPE_START) {
*opt->sync_idx = i;
break;
}
if (i < 0) {
EMSG2(_("E394: Didn't find region item for %s"), gname);
xfree(gname);
return NULL;
}
}
xfree(gname);
arg = skipwhite(arg);
} else if (flagtab[fidx].flags == HL_FOLD
&& foldmethodIsSyntax(curwin))
/* Need to update folds later. */
foldUpdateAll(curwin);
}
}
return arg;
}
/*
* Adjustments to syntax item when declared in a ":syn include"'d file.
* Set the contained flag, and if the item is not already contained, add it
* to the specified top-level group, if any.
*/
static void syn_incl_toplevel(int id, int *flagsp)
{
if ((*flagsp & HL_CONTAINED) || curwin->w_s->b_syn_topgrp == 0)
return;
*flagsp |= HL_CONTAINED;
if (curwin->w_s->b_syn_topgrp >= SYNID_CLUSTER) {
/* We have to alloc this, because syn_combine_list() will free it. */
short *grp_list = xmalloc(2 * sizeof(short));
int tlg_id = curwin->w_s->b_syn_topgrp - SYNID_CLUSTER;
grp_list[0] = id;
grp_list[1] = 0;
syn_combine_list(&SYN_CLSTR(curwin->w_s)[tlg_id].scl_list, &grp_list,
CLUSTER_ADD);
}
}
/*
* Handle ":syntax include [@{group-name}] filename" command.
*/
static void syn_cmd_include(exarg_T *eap, int syncing)
{
char_u *arg = eap->arg;
int sgl_id = 1;
char_u *group_name_end;
char_u *rest;
char_u *errormsg = NULL;
int prev_toplvl_grp;
int prev_syn_inc_tag;
int source = FALSE;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
if (arg[0] == '@') {
++arg;
rest = get_group_name(arg, &group_name_end);
if (rest == NULL) {
EMSG((char_u *)_("E397: Filename required"));
return;
}
sgl_id = syn_check_cluster(arg, (int)(group_name_end - arg));
if (sgl_id == 0)
return;
/* separate_nextcmd() and expand_filename() depend on this */
eap->arg = rest;
}
/*
* Everything that's left, up to the next command, should be the
* filename to include.
*/
eap->argt |= (XFILE | NOSPC);
separate_nextcmd(eap);
if (*eap->arg == '<' || *eap->arg == '$' || path_is_absolute_path(eap->arg)) {
/* For an absolute path, "$VIM/..." or "<sfile>.." we ":source" the
* file. Need to expand the file name first. In other cases
* ":runtime!" is used. */
source = TRUE;
if (expand_filename(eap, syn_cmdlinep, &errormsg) == FAIL) {
if (errormsg != NULL)
EMSG(errormsg);
return;
}
}
/*
* Save and restore the existing top-level grouplist id and ":syn
* include" tag around the actual inclusion.
*/
if (running_syn_inc_tag >= MAX_SYN_INC_TAG) {
EMSG((char_u *)_("E847: Too many syntax includes"));
return;
}
prev_syn_inc_tag = current_syn_inc_tag;
current_syn_inc_tag = ++running_syn_inc_tag;
prev_toplvl_grp = curwin->w_s->b_syn_topgrp;
curwin->w_s->b_syn_topgrp = sgl_id;
if (source ? do_source(eap->arg, false, DOSO_NONE) == FAIL
: source_runtime(eap->arg, DIP_ALL) == FAIL) {
EMSG2(_(e_notopen), eap->arg);
}
curwin->w_s->b_syn_topgrp = prev_toplvl_grp;
current_syn_inc_tag = prev_syn_inc_tag;
}
/*
* Handle ":syntax keyword {group-name} [{option}] keyword .." command.
*/
static void syn_cmd_keyword(exarg_T *eap, int syncing)
{
char_u *arg = eap->arg;
char_u *group_name_end;
int syn_id;
char_u *rest;
char_u *keyword_copy = NULL;
char_u *p;
char_u *kw;
syn_opt_arg_T syn_opt_arg;
int cnt;
int conceal_char = NUL;
rest = get_group_name(arg, &group_name_end);
if (rest != NULL) {
syn_id = syn_check_group(arg, (int)(group_name_end - arg));
if (syn_id != 0) {
// Allocate a buffer, for removing backslashes in the keyword.
keyword_copy = xmalloc(STRLEN(rest) + 1);
}
if (keyword_copy != NULL) {
syn_opt_arg.flags = 0;
syn_opt_arg.keyword = true;
syn_opt_arg.sync_idx = NULL;
syn_opt_arg.has_cont_list = false;
syn_opt_arg.cont_in_list = NULL;
syn_opt_arg.next_list = NULL;
// The options given apply to ALL keywords, so all options must be
// found before keywords can be created.
// 1: collect the options and copy the keywords to keyword_copy.
cnt = 0;
p = keyword_copy;
for (; rest != NULL && !ends_excmd(*rest); rest = skipwhite(rest)) {
rest = get_syn_options(rest, &syn_opt_arg, &conceal_char);
if (rest == NULL || ends_excmd(*rest)) {
break;
}
// Copy the keyword, removing backslashes, and add a NUL.
while (*rest != NUL && !ascii_iswhite(*rest)) {
if (*rest == '\\' && rest[1] != NUL) {
rest++;
}
*p++ = *rest++;
}
*p++ = NUL;
cnt++;
}
if (!eap->skip) {
// Adjust flags for use of ":syn include".
syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
// 2: Add an entry for each keyword.
for (kw = keyword_copy; --cnt >= 0; kw += STRLEN(kw) + 1) {
for (p = vim_strchr(kw, '[');; ) {
if (p != NULL) {
*p = NUL;
}
add_keyword(kw, syn_id, syn_opt_arg.flags,
syn_opt_arg.cont_in_list,
syn_opt_arg.next_list, conceal_char);
if (p == NULL) {
break;
}
if (p[1] == NUL) {
emsgf(_("E789: Missing ']': %s"), kw);
goto error;
}
if (p[1] == ']') {
if (p[2] != NUL) {
emsgf(_("E890: trailing char after ']': %s]%s"),
kw, &p[2]);
goto error;
}
kw = p + 1;
break; // skip over the "]"
}
const int l = (*mb_ptr2len)(p + 1);
memmove(p, p + 1, l);
p += l;
}
}
}
error:
xfree(keyword_copy);
xfree(syn_opt_arg.cont_in_list);
xfree(syn_opt_arg.next_list);
}
}
if (rest != NULL)
eap->nextcmd = check_nextcmd(rest);
else
EMSG2(_(e_invarg2), arg);
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curwin->w_s); /* Need to recompute all syntax. */
}
/*
* Handle ":syntax match {name} [{options}] {pattern} [{options}]".
*
* Also ":syntax sync match {name} [[grouphere | groupthere] {group-name}] .."
*/
static void
syn_cmd_match (
exarg_T *eap,
int syncing /* TRUE for ":syntax sync match .. " */
)
{
char_u *arg = eap->arg;
char_u *group_name_end;
char_u *rest;
synpat_T item; /* the item found in the line */
int syn_id;
syn_opt_arg_T syn_opt_arg;
int sync_idx = 0;
int conceal_char = NUL;
/* Isolate the group name, check for validity */
rest = get_group_name(arg, &group_name_end);
/* Get options before the pattern */
syn_opt_arg.flags = 0;
syn_opt_arg.keyword = FALSE;
syn_opt_arg.sync_idx = syncing ? &sync_idx : NULL;
syn_opt_arg.has_cont_list = TRUE;
syn_opt_arg.cont_list = NULL;
syn_opt_arg.cont_in_list = NULL;
syn_opt_arg.next_list = NULL;
rest = get_syn_options(rest, &syn_opt_arg, &conceal_char);
/* get the pattern. */
init_syn_patterns();
memset(&item, 0, sizeof(item));
rest = get_syn_pattern(rest, &item);
if (vim_regcomp_had_eol() && !(syn_opt_arg.flags & HL_EXCLUDENL))
syn_opt_arg.flags |= HL_HAS_EOL;
/* Get options after the pattern */
rest = get_syn_options(rest, &syn_opt_arg, &conceal_char);
if (rest != NULL) { /* all arguments are valid */
/*
* Check for trailing command and illegal trailing arguments.
*/
eap->nextcmd = check_nextcmd(rest);
if (!ends_excmd(*rest) || eap->skip)
rest = NULL;
else {
if ((syn_id = syn_check_group(arg, (int)(group_name_end - arg))) != 0) {
syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
/*
* Store the pattern in the syn_items list
*/
synpat_T *spp = GA_APPEND_VIA_PTR(synpat_T,
&curwin->w_s->b_syn_patterns);
*spp = item;
spp->sp_syncing = syncing;
spp->sp_type = SPTYPE_MATCH;
spp->sp_syn.id = syn_id;
spp->sp_syn.inc_tag = current_syn_inc_tag;
spp->sp_flags = syn_opt_arg.flags;
spp->sp_sync_idx = sync_idx;
spp->sp_cont_list = syn_opt_arg.cont_list;
spp->sp_syn.cont_in_list = syn_opt_arg.cont_in_list;
spp->sp_cchar = conceal_char;
if (syn_opt_arg.cont_in_list != NULL)
curwin->w_s->b_syn_containedin = TRUE;
spp->sp_next_list = syn_opt_arg.next_list;
/* remember that we found a match for syncing on */
if (syn_opt_arg.flags & (HL_SYNC_HERE|HL_SYNC_THERE))
curwin->w_s->b_syn_sync_flags |= SF_MATCH;
if (syn_opt_arg.flags & HL_FOLD)
++curwin->w_s->b_syn_folditems;
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curwin->w_s); /* Need to recompute all syntax. */
return; /* don't free the progs and patterns now */
}
}
}
/*
* Something failed, free the allocated memory.
*/
vim_regfree(item.sp_prog);
xfree(item.sp_pattern);
xfree(syn_opt_arg.cont_list);
xfree(syn_opt_arg.cont_in_list);
xfree(syn_opt_arg.next_list);
if (rest == NULL)
EMSG2(_(e_invarg2), arg);
}
/*
* Handle ":syntax region {group-name} [matchgroup={group-name}]
* start {start} .. [skip {skip}] end {end} .. [{options}]".
*/
static void
syn_cmd_region (
exarg_T *eap,
int syncing /* TRUE for ":syntax sync region .." */
)
{
char_u *arg = eap->arg;
char_u *group_name_end;
char_u *rest; /* next arg, NULL on error */
char_u *key_end;
char_u *key = NULL;
char_u *p;
int item;
#define ITEM_START 0
#define ITEM_SKIP 1
#define ITEM_END 2
#define ITEM_MATCHGROUP 3
struct pat_ptr {
synpat_T *pp_synp; /* pointer to syn_pattern */
int pp_matchgroup_id; /* matchgroup ID */
struct pat_ptr *pp_next; /* pointer to next pat_ptr */
} *(pat_ptrs[3]);
/* patterns found in the line */
struct pat_ptr *ppp;
struct pat_ptr *ppp_next;
int pat_count = 0; /* nr of syn_patterns found */
int syn_id;
int matchgroup_id = 0;
int not_enough = FALSE; /* not enough arguments */
int illegal = FALSE; /* illegal arguments */
int success = FALSE;
syn_opt_arg_T syn_opt_arg;
int conceal_char = NUL;
/* Isolate the group name, check for validity */
rest = get_group_name(arg, &group_name_end);
pat_ptrs[0] = NULL;
pat_ptrs[1] = NULL;
pat_ptrs[2] = NULL;
init_syn_patterns();
syn_opt_arg.flags = 0;
syn_opt_arg.keyword = FALSE;
syn_opt_arg.sync_idx = NULL;
syn_opt_arg.has_cont_list = TRUE;
syn_opt_arg.cont_list = NULL;
syn_opt_arg.cont_in_list = NULL;
syn_opt_arg.next_list = NULL;
/*
* get the options, patterns and matchgroup.
*/
while (rest != NULL && !ends_excmd(*rest)) {
/* Check for option arguments */
rest = get_syn_options(rest, &syn_opt_arg, &conceal_char);
if (rest == NULL || ends_excmd(*rest))
break;
/* must be a pattern or matchgroup then */
key_end = rest;
while (*key_end && !ascii_iswhite(*key_end) && *key_end != '=')
++key_end;
xfree(key);
key = vim_strnsave_up(rest, (int)(key_end - rest));
if (STRCMP(key, "MATCHGROUP") == 0)
item = ITEM_MATCHGROUP;
else if (STRCMP(key, "START") == 0)
item = ITEM_START;
else if (STRCMP(key, "END") == 0)
item = ITEM_END;
else if (STRCMP(key, "SKIP") == 0) {
if (pat_ptrs[ITEM_SKIP] != NULL) { /* one skip pattern allowed */
illegal = TRUE;
break;
}
item = ITEM_SKIP;
} else
break;
rest = skipwhite(key_end);
if (*rest != '=') {
rest = NULL;
EMSG2(_("E398: Missing '=': %s"), arg);
break;
}
rest = skipwhite(rest + 1);
if (*rest == NUL) {
not_enough = TRUE;
break;
}
if (item == ITEM_MATCHGROUP) {
p = skiptowhite(rest);
if ((p - rest == 4 && STRNCMP(rest, "NONE", 4) == 0) || eap->skip)
matchgroup_id = 0;
else {
matchgroup_id = syn_check_group(rest, (int)(p - rest));
if (matchgroup_id == 0) {
illegal = TRUE;
break;
}
}
rest = skipwhite(p);
} else {
/*
* Allocate room for a syn_pattern, and link it in the list of
* syn_patterns for this item, at the start (because the list is
* used from end to start).
*/
ppp = xmalloc(sizeof(struct pat_ptr));
ppp->pp_next = pat_ptrs[item];
pat_ptrs[item] = ppp;
ppp->pp_synp = xcalloc(1, sizeof(synpat_T));
/*
* Get the syntax pattern and the following offset(s).
*/
/* Enable the appropriate \z specials. */
if (item == ITEM_START)
reg_do_extmatch = REX_SET;
else if (item == ITEM_SKIP || item == ITEM_END)
reg_do_extmatch = REX_USE;
rest = get_syn_pattern(rest, ppp->pp_synp);
reg_do_extmatch = 0;
if (item == ITEM_END && vim_regcomp_had_eol()
&& !(syn_opt_arg.flags & HL_EXCLUDENL))
ppp->pp_synp->sp_flags |= HL_HAS_EOL;
ppp->pp_matchgroup_id = matchgroup_id;
++pat_count;
}
}
xfree(key);
if (illegal || not_enough)
rest = NULL;
// Must have a "start" and "end" pattern.
if (rest != NULL && (pat_ptrs[ITEM_START] == NULL
|| pat_ptrs[ITEM_END] == NULL)) {
not_enough = true;
rest = NULL;
}
if (rest != NULL) {
/*
* Check for trailing garbage or command.
* If OK, add the item.
*/
eap->nextcmd = check_nextcmd(rest);
if (!ends_excmd(*rest) || eap->skip)
rest = NULL;
else {
ga_grow(&(curwin->w_s->b_syn_patterns), pat_count);
if ((syn_id = syn_check_group(arg, (int)(group_name_end - arg))) != 0) {
syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
/*
* Store the start/skip/end in the syn_items list
*/
int idx = curwin->w_s->b_syn_patterns.ga_len;
for (item = ITEM_START; item <= ITEM_END; ++item) {
for (ppp = pat_ptrs[item]; ppp != NULL; ppp = ppp->pp_next) {
SYN_ITEMS(curwin->w_s)[idx] = *(ppp->pp_synp);
SYN_ITEMS(curwin->w_s)[idx].sp_syncing = syncing;
SYN_ITEMS(curwin->w_s)[idx].sp_type =
(item == ITEM_START) ? SPTYPE_START :
(item == ITEM_SKIP) ? SPTYPE_SKIP : SPTYPE_END;
SYN_ITEMS(curwin->w_s)[idx].sp_flags |= syn_opt_arg.flags;
SYN_ITEMS(curwin->w_s)[idx].sp_syn.id = syn_id;
SYN_ITEMS(curwin->w_s)[idx].sp_syn.inc_tag =
current_syn_inc_tag;
SYN_ITEMS(curwin->w_s)[idx].sp_syn_match_id =
ppp->pp_matchgroup_id;
SYN_ITEMS(curwin->w_s)[idx].sp_cchar = conceal_char;
if (item == ITEM_START) {
SYN_ITEMS(curwin->w_s)[idx].sp_cont_list =
syn_opt_arg.cont_list;
SYN_ITEMS(curwin->w_s)[idx].sp_syn.cont_in_list =
syn_opt_arg.cont_in_list;
if (syn_opt_arg.cont_in_list != NULL)
curwin->w_s->b_syn_containedin = TRUE;
SYN_ITEMS(curwin->w_s)[idx].sp_next_list =
syn_opt_arg.next_list;
}
++curwin->w_s->b_syn_patterns.ga_len;
++idx;
if (syn_opt_arg.flags & HL_FOLD)
++curwin->w_s->b_syn_folditems;
}
}
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curwin->w_s); /* Need to recompute all syntax. */
success = TRUE; /* don't free the progs and patterns now */
}
}
}
/*
* Free the allocated memory.
*/
for (item = ITEM_START; item <= ITEM_END; ++item)
for (ppp = pat_ptrs[item]; ppp != NULL; ppp = ppp_next) {
if (!success) {
vim_regfree(ppp->pp_synp->sp_prog);
xfree(ppp->pp_synp->sp_pattern);
}
xfree(ppp->pp_synp);
ppp_next = ppp->pp_next;
xfree(ppp);
}
if (!success) {
xfree(syn_opt_arg.cont_list);
xfree(syn_opt_arg.cont_in_list);
xfree(syn_opt_arg.next_list);
if (not_enough)
EMSG2(_("E399: Not enough arguments: syntax region %s"), arg);
else if (illegal || rest == NULL)
EMSG2(_(e_invarg2), arg);
}
}
/*
* A simple syntax group ID comparison function suitable for use in qsort()
*/
static int syn_compare_stub(const void *v1, const void *v2)
{
const short *s1 = v1;
const short *s2 = v2;
return *s1 > *s2 ? 1 : *s1 < *s2 ? -1 : 0;
}
/*
* Combines lists of syntax clusters.
* *clstr1 and *clstr2 must both be allocated memory; they will be consumed.
*/
static void syn_combine_list(short **clstr1, short **clstr2, int list_op)
{
int count1 = 0;
int count2 = 0;
short *g1;
short *g2;
short *clstr = NULL;
int count;
int round;
/*
* Handle degenerate cases.
*/
if (*clstr2 == NULL)
return;
if (*clstr1 == NULL || list_op == CLUSTER_REPLACE) {
if (list_op == CLUSTER_REPLACE)
xfree(*clstr1);
if (list_op == CLUSTER_REPLACE || list_op == CLUSTER_ADD)
*clstr1 = *clstr2;
else
xfree(*clstr2);
return;
}
for (g1 = *clstr1; *g1; g1++)
++count1;
for (g2 = *clstr2; *g2; g2++)
++count2;
/*
* For speed purposes, sort both lists.
*/
qsort(*clstr1, (size_t)count1, sizeof(short), syn_compare_stub);
qsort(*clstr2, (size_t)count2, sizeof(short), syn_compare_stub);
/*
* We proceed in two passes; in round 1, we count the elements to place
* in the new list, and in round 2, we allocate and populate the new
* list. For speed, we use a mergesort-like method, adding the smaller
* of the current elements in each list to the new list.
*/
for (round = 1; round <= 2; round++) {
g1 = *clstr1;
g2 = *clstr2;
count = 0;
/*
* First, loop through the lists until one of them is empty.
*/
while (*g1 && *g2) {
/*
* We always want to add from the first list.
*/
if (*g1 < *g2) {
if (round == 2)
clstr[count] = *g1;
count++;
g1++;
continue;
}
/*
* We only want to add from the second list if we're adding the
* lists.
*/
if (list_op == CLUSTER_ADD) {
if (round == 2)
clstr[count] = *g2;
count++;
}
if (*g1 == *g2)
g1++;
g2++;
}
/*
* Now add the leftovers from whichever list didn't get finished
* first. As before, we only want to add from the second list if
* we're adding the lists.
*/
for (; *g1; g1++, count++)
if (round == 2)
clstr[count] = *g1;
if (list_op == CLUSTER_ADD)
for (; *g2; g2++, count++)
if (round == 2)
clstr[count] = *g2;
if (round == 1) {
/*
* If the group ended up empty, we don't need to allocate any
* space for it.
*/
if (count == 0) {
clstr = NULL;
break;
}
clstr = xmalloc((count + 1) * sizeof(short));
clstr[count] = 0;
}
}
/*
* Finally, put the new list in place.
*/
xfree(*clstr1);
xfree(*clstr2);
*clstr1 = clstr;
}
/*
* Lookup a syntax cluster name and return it's ID.
* If it is not found, 0 is returned.
*/
static int syn_scl_name2id(char_u *name)
{
// Avoid using stricmp() too much, it's slow on some systems
char_u *name_u = vim_strsave_up(name);
int i;
for (i = curwin->w_s->b_syn_clusters.ga_len; --i >= 0; ) {
if (SYN_CLSTR(curwin->w_s)[i].scl_name_u != NULL
&& STRCMP(name_u, SYN_CLSTR(curwin->w_s)[i].scl_name_u) == 0) {
break;
}
}
xfree(name_u);
return i < 0 ? 0 : i + SYNID_CLUSTER;
}
/*
* Like syn_scl_name2id(), but take a pointer + length argument.
*/
static int syn_scl_namen2id(char_u *linep, int len)
{
char_u *name = vim_strnsave(linep, len);
int id = syn_scl_name2id(name);
xfree(name);
return id;
}
/*
* Find syntax cluster name in the table and return it's ID.
* The argument is a pointer to the name and the length of the name.
* If it doesn't exist yet, a new entry is created.
* Return 0 for failure.
*/
static int syn_check_cluster(char_u *pp, int len)
{
int id;
char_u *name;
name = vim_strnsave(pp, len);
id = syn_scl_name2id(name);
if (id == 0) /* doesn't exist yet */
id = syn_add_cluster(name);
else
xfree(name);
return id;
}
/*
* Add new syntax cluster and return it's ID.
* "name" must be an allocated string, it will be consumed.
* Return 0 for failure.
*/
static int syn_add_cluster(char_u *name)
{
/*
* First call for this growarray: init growing array.
*/
if (curwin->w_s->b_syn_clusters.ga_data == NULL) {
curwin->w_s->b_syn_clusters.ga_itemsize = sizeof(syn_cluster_T);
ga_set_growsize(&curwin->w_s->b_syn_clusters, 10);
}
int len = curwin->w_s->b_syn_clusters.ga_len;
if (len >= MAX_CLUSTER_ID) {
EMSG((char_u *)_("E848: Too many syntax clusters"));
xfree(name);
return 0;
}
syn_cluster_T *scp = GA_APPEND_VIA_PTR(syn_cluster_T,
&curwin->w_s->b_syn_clusters);
memset(scp, 0, sizeof(*scp));
scp->scl_name = name;
scp->scl_name_u = vim_strsave_up(name);
scp->scl_list = NULL;
if (STRICMP(name, "Spell") == 0)
curwin->w_s->b_spell_cluster_id = len + SYNID_CLUSTER;
if (STRICMP(name, "NoSpell") == 0)
curwin->w_s->b_nospell_cluster_id = len + SYNID_CLUSTER;
return len + SYNID_CLUSTER;
}
/*
* Handle ":syntax cluster {cluster-name} [contains={groupname},..]
* [add={groupname},..] [remove={groupname},..]".
*/
static void syn_cmd_cluster(exarg_T *eap, int syncing)
{
char_u *arg = eap->arg;
char_u *group_name_end;
char_u *rest;
int scl_id;
short *clstr_list;
int got_clstr = FALSE;
int opt_len;
int list_op;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
rest = get_group_name(arg, &group_name_end);
if (rest != NULL) {
scl_id = syn_check_cluster(arg, (int)(group_name_end - arg));
if (scl_id == 0)
return;
scl_id -= SYNID_CLUSTER;
for (;; ) {
if (STRNICMP(rest, "add", 3) == 0
&& (ascii_iswhite(rest[3]) || rest[3] == '=')) {
opt_len = 3;
list_op = CLUSTER_ADD;
} else if (STRNICMP(rest, "remove", 6) == 0
&& (ascii_iswhite(rest[6]) || rest[6] == '=')) {
opt_len = 6;
list_op = CLUSTER_SUBTRACT;
} else if (STRNICMP(rest, "contains", 8) == 0
&& (ascii_iswhite(rest[8]) || rest[8] == '=')) {
opt_len = 8;
list_op = CLUSTER_REPLACE;
} else
break;
clstr_list = NULL;
if (get_id_list(&rest, opt_len, &clstr_list) == FAIL) {
EMSG2(_(e_invarg2), rest);
break;
}
syn_combine_list(&SYN_CLSTR(curwin->w_s)[scl_id].scl_list,
&clstr_list, list_op);
got_clstr = TRUE;
}
if (got_clstr) {
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curwin->w_s); /* Need to recompute all. */
}
}
if (!got_clstr)
EMSG(_("E400: No cluster specified"));
if (rest == NULL || !ends_excmd(*rest))
EMSG2(_(e_invarg2), arg);
}
/*
* On first call for current buffer: Init growing array.
*/
static void init_syn_patterns(void)
{
curwin->w_s->b_syn_patterns.ga_itemsize = sizeof(synpat_T);
ga_set_growsize(&curwin->w_s->b_syn_patterns, 10);
}
/*
* Get one pattern for a ":syntax match" or ":syntax region" command.
* Stores the pattern and program in a synpat_T.
* Returns a pointer to the next argument, or NULL in case of an error.
*/
static char_u *get_syn_pattern(char_u *arg, synpat_T *ci)
{
char_u *end;
int *p;
int idx;
char_u *cpo_save;
// need at least three chars
if (arg == NULL || arg[0] == NUL || arg[1] == NUL || arg[2] == NUL) {
return NULL;
}
end = skip_regexp(arg + 1, *arg, TRUE, NULL);
if (*end != *arg) { /* end delimiter not found */
EMSG2(_("E401: Pattern delimiter not found: %s"), arg);
return NULL;
}
/* store the pattern and compiled regexp program */
ci->sp_pattern = vim_strnsave(arg + 1, (int)(end - arg - 1));
/* Make 'cpoptions' empty, to avoid the 'l' flag */
cpo_save = p_cpo;
p_cpo = (char_u *)"";
ci->sp_prog = vim_regcomp(ci->sp_pattern, RE_MAGIC);
p_cpo = cpo_save;
if (ci->sp_prog == NULL)
return NULL;
ci->sp_ic = curwin->w_s->b_syn_ic;
syn_clear_time(&ci->sp_time);
/*
* Check for a match, highlight or region offset.
*/
++end;
do {
for (idx = SPO_COUNT; --idx >= 0; )
if (STRNCMP(end, spo_name_tab[idx], 3) == 0)
break;
if (idx >= 0) {
p = &(ci->sp_offsets[idx]);
if (idx != SPO_LC_OFF)
switch (end[3]) {
case 's': break;
case 'b': break;
case 'e': idx += SPO_COUNT; break;
default: idx = -1; break;
}
if (idx >= 0) {
ci->sp_off_flags |= (1 << idx);
if (idx == SPO_LC_OFF) { /* lc=99 */
end += 3;
*p = getdigits_int(&end);
/* "lc=" offset automatically sets "ms=" offset */
if (!(ci->sp_off_flags & (1 << SPO_MS_OFF))) {
ci->sp_off_flags |= (1 << SPO_MS_OFF);
ci->sp_offsets[SPO_MS_OFF] = *p;
}
} else { /* yy=x+99 */
end += 4;
if (*end == '+') {
++end;
*p = getdigits_int(&end); /* positive offset */
} else if (*end == '-') {
++end;
*p = -getdigits_int(&end); /* negative offset */
}
}
if (*end != ',')
break;
++end;
}
}
} while (idx >= 0);
if (!ends_excmd(*end) && !ascii_iswhite(*end)) {
EMSG2(_("E402: Garbage after pattern: %s"), arg);
return NULL;
}
return skipwhite(end);
}
/*
* Handle ":syntax sync .." command.
*/
static void syn_cmd_sync(exarg_T *eap, int syncing)
{
char_u *arg_start = eap->arg;
char_u *arg_end;
char_u *key = NULL;
char_u *next_arg;
int illegal = FALSE;
int finished = FALSE;
long n;
char_u *cpo_save;
if (ends_excmd(*arg_start)) {
syn_cmd_list(eap, TRUE);
return;
}
while (!ends_excmd(*arg_start)) {
arg_end = skiptowhite(arg_start);
next_arg = skipwhite(arg_end);
xfree(key);
key = vim_strnsave_up(arg_start, (int)(arg_end - arg_start));
if (STRCMP(key, "CCOMMENT") == 0) {
if (!eap->skip)
curwin->w_s->b_syn_sync_flags |= SF_CCOMMENT;
if (!ends_excmd(*next_arg)) {
arg_end = skiptowhite(next_arg);
if (!eap->skip)
curwin->w_s->b_syn_sync_id = syn_check_group(next_arg,
(int)(arg_end - next_arg));
next_arg = skipwhite(arg_end);
} else if (!eap->skip)
curwin->w_s->b_syn_sync_id = syn_name2id((char_u *)"Comment");
} else if ( STRNCMP(key, "LINES", 5) == 0
|| STRNCMP(key, "MINLINES", 8) == 0
|| STRNCMP(key, "MAXLINES", 8) == 0
|| STRNCMP(key, "LINEBREAKS", 10) == 0) {
if (key[4] == 'S')
arg_end = key + 6;
else if (key[0] == 'L')
arg_end = key + 11;
else
arg_end = key + 9;
if (arg_end[-1] != '=' || !ascii_isdigit(*arg_end)) {
illegal = TRUE;
break;
}
n = getdigits_long(&arg_end);
if (!eap->skip) {
if (key[4] == 'B')
curwin->w_s->b_syn_sync_linebreaks = n;
else if (key[1] == 'A')
curwin->w_s->b_syn_sync_maxlines = n;
else
curwin->w_s->b_syn_sync_minlines = n;
}
} else if (STRCMP(key, "FROMSTART") == 0) {
if (!eap->skip) {
curwin->w_s->b_syn_sync_minlines = MAXLNUM;
curwin->w_s->b_syn_sync_maxlines = 0;
}
} else if (STRCMP(key, "LINECONT") == 0) {
if (*next_arg == NUL) { // missing pattern
illegal = true;
break;
}
if (curwin->w_s->b_syn_linecont_pat != NULL) {
EMSG(_("E403: syntax sync: line continuations pattern specified twice"));
finished = TRUE;
break;
}
arg_end = skip_regexp(next_arg + 1, *next_arg, TRUE, NULL);
if (*arg_end != *next_arg) { /* end delimiter not found */
illegal = TRUE;
break;
}
if (!eap->skip) {
/* store the pattern and compiled regexp program */
curwin->w_s->b_syn_linecont_pat =
vim_strnsave(next_arg + 1, (int)(arg_end - next_arg - 1));
curwin->w_s->b_syn_linecont_ic = curwin->w_s->b_syn_ic;
/* Make 'cpoptions' empty, to avoid the 'l' flag */
cpo_save = p_cpo;
p_cpo = (char_u *)"";
curwin->w_s->b_syn_linecont_prog =
vim_regcomp(curwin->w_s->b_syn_linecont_pat, RE_MAGIC);
p_cpo = cpo_save;
syn_clear_time(&curwin->w_s->b_syn_linecont_time);
if (curwin->w_s->b_syn_linecont_prog == NULL) {
xfree(curwin->w_s->b_syn_linecont_pat);
curwin->w_s->b_syn_linecont_pat = NULL;
finished = TRUE;
break;
}
}
next_arg = skipwhite(arg_end + 1);
} else {
eap->arg = next_arg;
if (STRCMP(key, "MATCH") == 0)
syn_cmd_match(eap, TRUE);
else if (STRCMP(key, "REGION") == 0)
syn_cmd_region(eap, TRUE);
else if (STRCMP(key, "CLEAR") == 0)
syn_cmd_clear(eap, TRUE);
else
illegal = TRUE;
finished = TRUE;
break;
}
arg_start = next_arg;
}
xfree(key);
if (illegal)
EMSG2(_("E404: Illegal arguments: %s"), arg_start);
else if (!finished) {
eap->nextcmd = check_nextcmd(arg_start);
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curwin->w_s); /* Need to recompute all syntax. */
}
}
/*
* Convert a line of highlight group names into a list of group ID numbers.
* "arg" should point to the "contains" or "nextgroup" keyword.
* "arg" is advanced to after the last group name.
* Careful: the argument is modified (NULs added).
* returns FAIL for some error, OK for success.
*/
static int
get_id_list (
char_u **arg,
int keylen, /* length of keyword */
short **list /* where to store the resulting list, if not
NULL, the list is silently skipped! */
)
{
char_u *p = NULL;
char_u *end;
int round;
int count;
int total_count = 0;
short *retval = NULL;
char_u *name;
regmatch_T regmatch;
int id;
int failed = FALSE;
/*
* We parse the list twice:
* round == 1: count the number of items, allocate the array.
* round == 2: fill the array with the items.
* In round 1 new groups may be added, causing the number of items to
* grow when a regexp is used. In that case round 1 is done once again.
*/
for (round = 1; round <= 2; ++round) {
/*
* skip "contains"
*/
p = skipwhite(*arg + keylen);
if (*p != '=') {
EMSG2(_("E405: Missing equal sign: %s"), *arg);
break;
}
p = skipwhite(p + 1);
if (ends_excmd(*p)) {
EMSG2(_("E406: Empty argument: %s"), *arg);
break;
}
/*
* parse the arguments after "contains"
*/
count = 0;
do {
for (end = p; *end && !ascii_iswhite(*end) && *end != ','; ++end)
;
name = xmalloc((int)(end - p + 3)); /* leave room for "^$" */
STRLCPY(name + 1, p, end - p + 1);
if ( STRCMP(name + 1, "ALLBUT") == 0
|| STRCMP(name + 1, "ALL") == 0
|| STRCMP(name + 1, "TOP") == 0
|| STRCMP(name + 1, "CONTAINED") == 0) {
if (TOUPPER_ASC(**arg) != 'C') {
EMSG2(_("E407: %s not allowed here"), name + 1);
failed = TRUE;
xfree(name);
break;
}
if (count != 0) {
EMSG2(_("E408: %s must be first in contains list"), name + 1);
failed = TRUE;
xfree(name);
break;
}
if (name[1] == 'A')
id = SYNID_ALLBUT;
else if (name[1] == 'T')
id = SYNID_TOP;
else
id = SYNID_CONTAINED;
id += current_syn_inc_tag;
} else if (name[1] == '@') {
id = syn_check_cluster(name + 2, (int)(end - p - 1));
} else {
/*
* Handle full group name.
*/
if (vim_strpbrk(name + 1, (char_u *)"\\.*^$~[") == NULL) {
id = syn_check_group(name + 1, (int)(end - p));
} else {
// Handle match of regexp with group names.
*name = '^';
STRCAT(name, "$");
regmatch.regprog = vim_regcomp(name, RE_MAGIC);
if (regmatch.regprog == NULL) {
failed = TRUE;
xfree(name);
break;
}
regmatch.rm_ic = TRUE;
id = 0;
for (int i = highlight_ga.ga_len; --i >= 0; ) {
if (vim_regexec(&regmatch, HL_TABLE()[i].sg_name, (colnr_T)0)) {
if (round == 2) {
/* Got more items than expected; can happen
* when adding items that match:
* "contains=a.*b,axb".
* Go back to first round */
if (count >= total_count) {
xfree(retval);
round = 1;
} else
retval[count] = i + 1;
}
++count;
id = -1; /* remember that we found one */
}
}
vim_regfree(regmatch.regprog);
}
}
xfree(name);
if (id == 0) {
EMSG2(_("E409: Unknown group name: %s"), p);
failed = TRUE;
break;
}
if (id > 0) {
if (round == 2) {
/* Got more items than expected, go back to first round */
if (count >= total_count) {
xfree(retval);
round = 1;
} else
retval[count] = id;
}
++count;
}
p = skipwhite(end);
if (*p != ',')
break;
p = skipwhite(p + 1); /* skip comma in between arguments */
} while (!ends_excmd(*p));
if (failed)
break;
if (round == 1) {
retval = xmalloc((count + 1) * sizeof(short));
retval[count] = 0; /* zero means end of the list */
total_count = count;
}
}
*arg = p;
if (failed || retval == NULL) {
xfree(retval);
return FAIL;
}
if (*list == NULL)
*list = retval;
else
xfree(retval); /* list already found, don't overwrite it */
return OK;
}
/*
* Make a copy of an ID list.
*/
static short *copy_id_list(short *list)
{
int len;
int count;
short *retval;
if (list == NULL)
return NULL;
for (count = 0; list[count]; ++count)
;
len = (count + 1) * sizeof(short);
retval = xmalloc(len);
memmove(retval, list, (size_t)len);
return retval;
}
/*
* Check if syntax group "ssp" is in the ID list "list" of "cur_si".
* "cur_si" can be NULL if not checking the "containedin" list.
* Used to check if a syntax item is in the "contains" or "nextgroup" list of
* the current item.
* This function is called very often, keep it fast!!
*/
static int
in_id_list (
stateitem_T *cur_si, /* current item or NULL */
short *list, /* id list */
struct sp_syn *ssp, /* group id and ":syn include" tag of group */
int contained /* group id is contained */
)
{
int retval;
short *scl_list;
short item;
short id = ssp->id;
static int depth = 0;
int r;
/* If ssp has a "containedin" list and "cur_si" is in it, return TRUE. */
if (cur_si != NULL && ssp->cont_in_list != NULL
&& !(cur_si->si_flags & HL_MATCH)) {
/* Ignore transparent items without a contains argument. Double check
* that we don't go back past the first one. */
while ((cur_si->si_flags & HL_TRANS_CONT)
&& cur_si > (stateitem_T *)(current_state.ga_data))
--cur_si;
/* cur_si->si_idx is -1 for keywords, these never contain anything. */
if (cur_si->si_idx >= 0 && in_id_list(NULL, ssp->cont_in_list,
&(SYN_ITEMS(syn_block)[cur_si->si_idx].sp_syn),
SYN_ITEMS(syn_block)[cur_si->si_idx].sp_flags & HL_CONTAINED))
return TRUE;
}
if (list == NULL)
return FALSE;
/*
* If list is ID_LIST_ALL, we are in a transparent item that isn't
* inside anything. Only allow not-contained groups.
*/
if (list == ID_LIST_ALL)
return !contained;
/*
* If the first item is "ALLBUT", return TRUE if "id" is NOT in the
* contains list. We also require that "id" is at the same ":syn include"
* level as the list.
*/
item = *list;
if (item >= SYNID_ALLBUT && item < SYNID_CLUSTER) {
if (item < SYNID_TOP) {
/* ALL or ALLBUT: accept all groups in the same file */
if (item - SYNID_ALLBUT != ssp->inc_tag)
return FALSE;
} else if (item < SYNID_CONTAINED) {
/* TOP: accept all not-contained groups in the same file */
if (item - SYNID_TOP != ssp->inc_tag || contained)
return FALSE;
} else {
/* CONTAINED: accept all contained groups in the same file */
if (item - SYNID_CONTAINED != ssp->inc_tag || !contained)
return FALSE;
}
item = *++list;
retval = FALSE;
} else
retval = TRUE;
/*
* Return "retval" if id is in the contains list.
*/
while (item != 0) {
if (item == id)
return retval;
if (item >= SYNID_CLUSTER) {
scl_list = SYN_CLSTR(syn_block)[item - SYNID_CLUSTER].scl_list;
/* restrict recursiveness to 30 to avoid an endless loop for a
* cluster that includes itself (indirectly) */
if (scl_list != NULL && depth < 30) {
++depth;
r = in_id_list(NULL, scl_list, ssp, contained);
--depth;
if (r)
return retval;
}
}
item = *++list;
}
return !retval;
}
struct subcommand {
char *name; /* subcommand name */
void (*func)(exarg_T *, int); /* function to call */
};
static struct subcommand subcommands[] =
{
{ "case", syn_cmd_case },
{ "clear", syn_cmd_clear },
{ "cluster", syn_cmd_cluster },
{ "conceal", syn_cmd_conceal },
{ "enable", syn_cmd_enable },
{ "include", syn_cmd_include },
{ "iskeyword", syn_cmd_iskeyword },
{ "keyword", syn_cmd_keyword },
{ "list", syn_cmd_list },
{ "manual", syn_cmd_manual },
{ "match", syn_cmd_match },
{ "on", syn_cmd_on },
{ "off", syn_cmd_off },
{ "region", syn_cmd_region },
{ "reset", syn_cmd_reset },
{ "spell", syn_cmd_spell },
{ "sync", syn_cmd_sync },
{ "", syn_cmd_list },
{ NULL, NULL }
};
/*
* ":syntax".
* This searches the subcommands[] table for the subcommand name, and calls a
* syntax_subcommand() function to do the rest.
*/
void ex_syntax(exarg_T *eap)
{
char_u *arg = eap->arg;
char_u *subcmd_end;
char_u *subcmd_name;
int i;
syn_cmdlinep = eap->cmdlinep;
/* isolate subcommand name */
for (subcmd_end = arg; ASCII_ISALPHA(*subcmd_end); ++subcmd_end)
;
subcmd_name = vim_strnsave(arg, (int)(subcmd_end - arg));
if (eap->skip) /* skip error messages for all subcommands */
++emsg_skip;
for (i = 0;; ++i) {
if (subcommands[i].name == NULL) {
EMSG2(_("E410: Invalid :syntax subcommand: %s"), subcmd_name);
break;
}
if (STRCMP(subcmd_name, (char_u *)subcommands[i].name) == 0) {
eap->arg = skipwhite(subcmd_end);
(subcommands[i].func)(eap, FALSE);
break;
}
}
xfree(subcmd_name);
if (eap->skip)
--emsg_skip;
}
void ex_ownsyntax(exarg_T *eap)
{
char_u *old_value;
char_u *new_value;
if (curwin->w_s == &curwin->w_buffer->b_s) {
curwin->w_s = xmalloc(sizeof(synblock_T));
memset(curwin->w_s, 0, sizeof(synblock_T));
hash_init(&curwin->w_s->b_keywtab);
hash_init(&curwin->w_s->b_keywtab_ic);
// TODO: Keep the spell checking as it was. NOLINT(readability/todo)
curwin->w_p_spell = false; // No spell checking
clear_string_option(&curwin->w_s->b_p_spc);
clear_string_option(&curwin->w_s->b_p_spf);
clear_string_option(&curwin->w_s->b_p_spl);
clear_string_option(&curwin->w_s->b_syn_isk);
}
// Save value of b:current_syntax.
old_value = get_var_value("b:current_syntax");
if (old_value != NULL) {
old_value = vim_strsave(old_value);
}
/* Apply the "syntax" autocommand event, this finds and loads the syntax
* file. */
apply_autocmds(EVENT_SYNTAX, eap->arg, curbuf->b_fname, TRUE, curbuf);
// Move value of b:current_syntax to w:current_syntax.
new_value = get_var_value("b:current_syntax");
if (new_value != NULL) {
set_internal_string_var((char_u *)"w:current_syntax", new_value);
}
// Restore value of b:current_syntax.
if (old_value == NULL) {
do_unlet(S_LEN("b:current_syntax"), true);
} else {
set_internal_string_var((char_u *)"b:current_syntax", old_value);
xfree(old_value);
}
}
bool syntax_present(win_T *win)
{
return win->w_s->b_syn_patterns.ga_len != 0
|| win->w_s->b_syn_clusters.ga_len != 0
|| win->w_s->b_keywtab.ht_used > 0
|| win->w_s->b_keywtab_ic.ht_used > 0;
}
static enum {
EXP_SUBCMD, /* expand ":syn" sub-commands */
EXP_CASE /* expand ":syn case" arguments */
} expand_what;
/*
* Reset include_link, include_default, include_none to 0.
* Called when we are done expanding.
*/
void reset_expand_highlight(void)
{
include_link = include_default = include_none = 0;
}
/*
* Handle command line completion for :match and :echohl command: Add "None"
* as highlight group.
*/
void set_context_in_echohl_cmd(expand_T *xp, const char *arg)
{
xp->xp_context = EXPAND_HIGHLIGHT;
xp->xp_pattern = (char_u *)arg;
include_none = 1;
}
/*
* Handle command line completion for :syntax command.
*/
void set_context_in_syntax_cmd(expand_T *xp, const char *arg)
{
// Default: expand subcommands.
xp->xp_context = EXPAND_SYNTAX;
expand_what = EXP_SUBCMD;
xp->xp_pattern = (char_u *)arg;
include_link = 0;
include_default = 0;
/* (part of) subcommand already typed */
if (*arg != NUL) {
const char *p = (const char *)skiptowhite((const char_u *)arg);
if (*p != NUL) { // Past first word.
xp->xp_pattern = skipwhite((const char_u *)p);
if (*skiptowhite(xp->xp_pattern) != NUL) {
xp->xp_context = EXPAND_NOTHING;
} else if (STRNICMP(arg, "case", p - arg) == 0) {
expand_what = EXP_CASE;
} else if (STRNICMP(arg, "keyword", p - arg) == 0
|| STRNICMP(arg, "region", p - arg) == 0
|| STRNICMP(arg, "match", p - arg) == 0
|| STRNICMP(arg, "list", p - arg) == 0) {
xp->xp_context = EXPAND_HIGHLIGHT;
} else {
xp->xp_context = EXPAND_NOTHING;
}
}
}
}
static char *(case_args[]) = {"match", "ignore", NULL};
/*
* Function given to ExpandGeneric() to obtain the list syntax names for
* expansion.
*/
char_u *get_syntax_name(expand_T *xp, int idx)
{
if (expand_what == EXP_SUBCMD)
return (char_u *)subcommands[idx].name;
return (char_u *)case_args[idx];
}
// Function called for expression evaluation: get syntax ID at file position.
int syn_get_id(
win_T *wp,
long lnum,
colnr_T col,
int trans, // remove transparency
bool *spellp, // return: can do spell checking
int keep_state // keep state of char at "col"
)
{
// When the position is not after the current position and in the same
// line of the same buffer, need to restart parsing.
if (wp->w_buffer != syn_buf
|| lnum != current_lnum
|| col < current_col) {
syntax_start(wp, lnum);
} else if (wp->w_buffer == syn_buf
&& lnum == current_lnum
&& col > current_col) {
// next_match may not be correct when moving around, e.g. with the
// "skip" expression in searchpair()
next_match_idx = -1;
}
(void)get_syntax_attr(col, spellp, keep_state);
return trans ? current_trans_id : current_id;
}
/*
* Get extra information about the syntax item. Must be called right after
* get_syntax_attr().
* Stores the current item sequence nr in "*seqnrp".
* Returns the current flags.
*/
int get_syntax_info(int *seqnrp)
{
*seqnrp = current_seqnr;
return current_flags;
}
/// Get the sequence number of the concealed file position.
///
/// @return seqnr if the file position is concealed, 0 otherwise.
int syn_get_concealed_id(win_T *wp, linenr_T lnum, colnr_T col)
{
int seqnr;
int syntax_flags;
(void)syn_get_id(wp, lnum, col, false, NULL, false);
syntax_flags = get_syntax_info(&seqnr);
if (syntax_flags & HL_CONCEAL) {
return seqnr;
}
return 0;
}
/*
* Return conceal substitution character
*/
int syn_get_sub_char(void)
{
return current_sub_char;
}
/*
* Return the syntax ID at position "i" in the current stack.
* The caller must have called syn_get_id() before to fill the stack.
* Returns -1 when "i" is out of range.
*/
int syn_get_stack_item(int i)
{
if (i >= current_state.ga_len) {
/* Need to invalidate the state, because we didn't properly finish it
* for the last character, "keep_state" was TRUE. */
invalidate_current_state();
current_col = MAXCOL;
return -1;
}
return CUR_STATE(i).si_id;
}
/*
* Function called to get folding level for line "lnum" in window "wp".
*/
int syn_get_foldlevel(win_T *wp, long lnum)
{
int level = 0;
/* Return quickly when there are no fold items at all. */
if (wp->w_s->b_syn_folditems != 0) {
syntax_start(wp, lnum);
for (int i = 0; i < current_state.ga_len; ++i) {
if (CUR_STATE(i).si_flags & HL_FOLD) {
++level;
}
}
}
if (level > wp->w_p_fdn) {
level = wp->w_p_fdn;
if (level < 0)
level = 0;
}
return level;
}
/*
* ":syntime".
*/
void ex_syntime(exarg_T *eap)
{
if (STRCMP(eap->arg, "on") == 0)
syn_time_on = TRUE;
else if (STRCMP(eap->arg, "off") == 0)
syn_time_on = FALSE;
else if (STRCMP(eap->arg, "clear") == 0)
syntime_clear();
else if (STRCMP(eap->arg, "report") == 0)
syntime_report();
else
EMSG2(_(e_invarg2), eap->arg);
}
static void syn_clear_time(syn_time_T *st)
{
st->total = profile_zero();
st->slowest = profile_zero();
st->count = 0;
st->match = 0;
}
/*
* Clear the syntax timing for the current buffer.
*/
static void syntime_clear(void)
{
synpat_T *spp;
if (!syntax_present(curwin)) {
MSG(_(msg_no_items));
return;
}
for (int idx = 0; idx < curwin->w_s->b_syn_patterns.ga_len; ++idx) {
spp = &(SYN_ITEMS(curwin->w_s)[idx]);
syn_clear_time(&spp->sp_time);
}
}
/*
* Function given to ExpandGeneric() to obtain the possible arguments of the
* ":syntime {on,off,clear,report}" command.
*/
char_u *get_syntime_arg(expand_T *xp, int idx)
{
switch (idx) {
case 0: return (char_u *)"on";
case 1: return (char_u *)"off";
case 2: return (char_u *)"clear";
case 3: return (char_u *)"report";
}
return NULL;
}
static int syn_compare_syntime(const void *v1, const void *v2)
{
const time_entry_T *s1 = v1;
const time_entry_T *s2 = v2;
return profile_cmp(s1->total, s2->total);
}
/*
* Clear the syntax timing for the current buffer.
*/
static void syntime_report(void)
{
if (!syntax_present(curwin)) {
MSG(_(msg_no_items));
return;
}
garray_T ga;
ga_init(&ga, sizeof(time_entry_T), 50);
proftime_T total_total = profile_zero();
int total_count = 0;
time_entry_T *p;
for (int idx = 0; idx < curwin->w_s->b_syn_patterns.ga_len; ++idx) {
synpat_T *spp = &(SYN_ITEMS(curwin->w_s)[idx]);
if (spp->sp_time.count > 0) {
p = GA_APPEND_VIA_PTR(time_entry_T, &ga);
p->total = spp->sp_time.total;
total_total = profile_add(total_total, spp->sp_time.total);
p->count = spp->sp_time.count;
p->match = spp->sp_time.match;
total_count += spp->sp_time.count;
p->slowest = spp->sp_time.slowest;
proftime_T tm = profile_divide(spp->sp_time.total, spp->sp_time.count);
p->average = tm;
p->id = spp->sp_syn.id;
p->pattern = spp->sp_pattern;
}
}
/* sort on total time */
qsort(ga.ga_data, (size_t)ga.ga_len, sizeof(time_entry_T),
syn_compare_syntime);
MSG_PUTS_TITLE(_(
" TOTAL COUNT MATCH SLOWEST AVERAGE NAME PATTERN"));
MSG_PUTS("\n");
for (int idx = 0; idx < ga.ga_len && !got_int; ++idx) {
p = ((time_entry_T *)ga.ga_data) + idx;
MSG_PUTS(profile_msg(p->total));
MSG_PUTS(" "); /* make sure there is always a separating space */
msg_advance(13);
msg_outnum(p->count);
MSG_PUTS(" ");
msg_advance(20);
msg_outnum(p->match);
MSG_PUTS(" ");
msg_advance(26);
MSG_PUTS(profile_msg(p->slowest));
MSG_PUTS(" ");
msg_advance(38);
MSG_PUTS(profile_msg(p->average));
MSG_PUTS(" ");
msg_advance(50);
msg_outtrans(HL_TABLE()[p->id - 1].sg_name);
MSG_PUTS(" ");
msg_advance(69);
int len;
if (Columns < 80)
len = 20; /* will wrap anyway */
else
len = Columns - 70;
if (len > (int)STRLEN(p->pattern))
len = (int)STRLEN(p->pattern);
msg_outtrans_len(p->pattern, len);
MSG_PUTS("\n");
}
ga_clear(&ga);
if (!got_int) {
MSG_PUTS("\n");
MSG_PUTS(profile_msg(total_total));
msg_advance(13);
msg_outnum(total_count);
MSG_PUTS("\n");
}
}
/**************************************
* Highlighting stuff *
**************************************/
// The default highlight groups. These are compiled-in for fast startup and
// they still work when the runtime files can't be found.
//
// When making changes here, also change runtime/colors/default.vim!
static char *highlight_init_both[] =
{
"Conceal ctermbg=DarkGrey ctermfg=LightGrey guibg=DarkGrey guifg=LightGrey",
"Cursor guibg=fg guifg=bg",
"lCursor guibg=fg guifg=bg",
"DiffText cterm=bold ctermbg=Red gui=bold guibg=Red",
"ErrorMsg ctermbg=DarkRed ctermfg=White guibg=Red guifg=White",
"IncSearch cterm=reverse gui=reverse",
"ModeMsg cterm=bold gui=bold",
"NonText ctermfg=Blue gui=bold guifg=Blue",
"PmenuSbar ctermbg=Grey guibg=Grey",
"StatusLine cterm=reverse,bold gui=reverse,bold",
"StatusLineNC cterm=reverse gui=reverse",
"TabLineFill cterm=reverse gui=reverse",
"TabLineSel cterm=bold gui=bold",
"TermCursor cterm=reverse gui=reverse",
"VertSplit cterm=reverse gui=reverse",
"WildMenu ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black",
"default link EndOfBuffer NonText",
"default link QuickFixLine Search",
"default link Substitute Search",
"default link Whitespace NonText",
NULL
};
static char *highlight_init_light[] =
{
"ColorColumn ctermbg=LightRed guibg=LightRed",
"CursorColumn ctermbg=LightGrey guibg=Grey90",
"CursorLine cterm=underline guibg=Grey90",
"CursorLineNr ctermfg=Brown gui=bold guifg=Brown",
"DiffAdd ctermbg=LightBlue guibg=LightBlue",
"DiffChange ctermbg=LightMagenta guibg=LightMagenta",
"DiffDelete ctermfg=Blue ctermbg=LightCyan gui=bold guifg=Blue guibg=LightCyan",
"Directory ctermfg=DarkBlue guifg=Blue",
"FoldColumn ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue",
"Folded ctermbg=Grey ctermfg=DarkBlue guibg=LightGrey guifg=DarkBlue",
"LineNr ctermfg=Brown guifg=Brown",
"MatchParen ctermbg=Cyan guibg=Cyan",
"MoreMsg ctermfg=DarkGreen gui=bold guifg=SeaGreen",
"Pmenu ctermbg=LightMagenta ctermfg=Black guibg=LightMagenta",
"PmenuSel ctermbg=LightGrey ctermfg=Black guibg=Grey",
"PmenuThumb ctermbg=Black guibg=Black",
"Question ctermfg=DarkGreen gui=bold guifg=SeaGreen",
"Search ctermbg=Yellow ctermfg=NONE guibg=Yellow guifg=NONE",
"SignColumn ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue",
"SpecialKey ctermfg=DarkBlue guifg=Blue",
"SpellBad ctermbg=LightRed guisp=Red gui=undercurl",
"SpellCap ctermbg=LightBlue guisp=Blue gui=undercurl",
"SpellLocal ctermbg=Cyan guisp=DarkCyan gui=undercurl",
"SpellRare ctermbg=LightMagenta guisp=Magenta gui=undercurl",
"TabLine cterm=underline ctermfg=black ctermbg=LightGrey gui=underline guibg=LightGrey",
"Title ctermfg=DarkMagenta gui=bold guifg=Magenta",
"Visual guibg=LightGrey",
"WarningMsg ctermfg=DarkRed guifg=Red",
"Normal gui=NONE",
NULL
};
static char *highlight_init_dark[] =
{
"ColorColumn ctermbg=DarkRed guibg=DarkRed",
"CursorColumn ctermbg=DarkGrey guibg=Grey40",
"CursorLine cterm=underline guibg=Grey40",
"CursorLineNr ctermfg=Yellow gui=bold guifg=Yellow",
"DiffAdd ctermbg=DarkBlue guibg=DarkBlue",
"DiffChange ctermbg=DarkMagenta guibg=DarkMagenta",
"DiffDelete ctermfg=Blue ctermbg=DarkCyan gui=bold guifg=Blue guibg=DarkCyan",
"Directory ctermfg=LightCyan guifg=Cyan",
"FoldColumn ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan",
"Folded ctermbg=DarkGrey ctermfg=Cyan guibg=DarkGrey guifg=Cyan",
"LineNr ctermfg=Yellow guifg=Yellow",
"MatchParen ctermbg=DarkCyan guibg=DarkCyan",
"MoreMsg ctermfg=LightGreen gui=bold guifg=SeaGreen",
"Pmenu ctermbg=Magenta ctermfg=Black guibg=Magenta",
"PmenuSel ctermbg=Black ctermfg=DarkGrey guibg=DarkGrey",
"PmenuThumb ctermbg=White guibg=White",
"Question ctermfg=LightGreen gui=bold guifg=Green",
"Search ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black",
"SignColumn ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan",
"SpecialKey ctermfg=LightBlue guifg=Cyan",
"SpellBad ctermbg=Red guisp=Red gui=undercurl",
"SpellCap ctermbg=Blue guisp=Blue gui=undercurl",
"SpellLocal ctermbg=Cyan guisp=Cyan gui=undercurl",
"SpellRare ctermbg=Magenta guisp=Magenta gui=undercurl",
"TabLine cterm=underline ctermfg=white ctermbg=DarkGrey gui=underline guibg=DarkGrey",
"Title ctermfg=LightMagenta gui=bold guifg=Magenta",
"Visual guibg=DarkGrey",
"WarningMsg ctermfg=LightRed guifg=Red",
"Normal gui=NONE",
NULL
};
/// Load colors from a file if "g:colors_name" is set, otherwise load builtin
/// colors
///
/// @param both include groups where 'bg' doesn't matter
/// @param reset clear groups first
void
init_highlight(int both, int reset)
{
int i;
char **pp;
static int had_both = FALSE;
// Try finding the color scheme file. Used when a color file was loaded
// and 'background' or 't_Co' is changed.
char_u *p = get_var_value("g:colors_name");
if (p != NULL) {
// Value of g:colors_name could be freed in load_colors() and make
// p invalid, so copy it.
char_u *copy_p = vim_strsave(p);
bool okay = load_colors(copy_p);
xfree(copy_p);
if (okay) {
return;
}
}
/*
* Didn't use a color file, use the compiled-in colors.
*/
if (both) {
had_both = TRUE;
pp = highlight_init_both;
for (i = 0; pp[i] != NULL; i++) {
do_highlight((char_u *)pp[i], reset, true);
}
} else if (!had_both) {
// Don't do anything before the call with both == TRUE from main().
// Not everything has been setup then, and that call will overrule
// everything anyway.
return;
}
pp = (*p_bg == 'l') ? highlight_init_light : highlight_init_dark;
for (i = 0; pp[i] != NULL; i++) {
do_highlight((char_u *)pp[i], reset, true);
}
/* Reverse looks ugly, but grey may not work for 8 colors. Thus let it
* depend on the number of colors available.
* With 8 colors brown is equal to yellow, need to use black for Search fg
* to avoid Statement highlighted text disappears.
* Clear the attributes, needed when changing the t_Co value. */
if (t_colors > 8) {
do_highlight(
(char_u *)(*p_bg == 'l'
? "Visual cterm=NONE ctermbg=LightGrey"
: "Visual cterm=NONE ctermbg=DarkGrey"), false,
true);
} else {
do_highlight((char_u *)"Visual cterm=reverse ctermbg=NONE",
FALSE, TRUE);
if (*p_bg == 'l')
do_highlight((char_u *)"Search ctermfg=black", FALSE, TRUE);
}
/*
* If syntax highlighting is enabled load the highlighting for it.
*/
if (get_var_value("g:syntax_on") != NULL) {
static int recursive = 0;
if (recursive >= 5) {
EMSG(_("E679: recursive loop loading syncolor.vim"));
} else {
recursive++;
(void)source_runtime((char_u *)"syntax/syncolor.vim", DIP_ALL);
recursive--;
}
}
}
/*
* Load color file "name".
* Return OK for success, FAIL for failure.
*/
int load_colors(char_u *name)
{
char_u *buf;
int retval = FAIL;
static int recursive = false;
// When being called recursively, this is probably because setting
// 'background' caused the highlighting to be reloaded. This means it is
// working, thus we should return OK.
if (recursive) {
return OK;
}
recursive = true;
size_t buflen = STRLEN(name) + 12;
buf = xmalloc(buflen);
snprintf((char *)buf, buflen, "colors/%s.vim", name);
retval = source_runtime(buf, DIP_START + DIP_OPT);
xfree(buf);
apply_autocmds(EVENT_COLORSCHEME, name, curbuf->b_fname, FALSE, curbuf);
recursive = false;
ui_refresh();
return retval;
}
/// Handle the ":highlight .." command.
/// When using ":hi clear" this is called recursively for each group with
/// "forceit" and "init" both TRUE.
/// @param init TRUE when called for initializing
void
do_highlight(char_u *line, int forceit, int init) {
char_u *name_end;
char_u *linep;
char_u *key_start;
char_u *arg_start;
char_u *key = NULL, *arg = NULL;
long i;
int off;
int len;
int attr;
int id;
int idx;
int dodefault = FALSE;
int doclear = FALSE;
int dolink = FALSE;
int error = FALSE;
int color;
bool is_normal_group = false; // "Normal" group
/*
* If no argument, list current highlighting.
*/
if (ends_excmd(*line)) {
for (int i = 1; i <= highlight_ga.ga_len && !got_int; i++) {
// todo(vim): only call when the group has attributes set
highlight_list_one(i);
}
return;
}
/*
* Isolate the name.
*/
name_end = skiptowhite(line);
linep = skipwhite(name_end);
/*
* Check for "default" argument.
*/
if (STRNCMP(line, "default", name_end - line) == 0) {
dodefault = TRUE;
line = linep;
name_end = skiptowhite(line);
linep = skipwhite(name_end);
}
/*
* Check for "clear" or "link" argument.
*/
if (STRNCMP(line, "clear", name_end - line) == 0)
doclear = TRUE;
if (STRNCMP(line, "link", name_end - line) == 0)
dolink = TRUE;
/*
* ":highlight {group-name}": list highlighting for one group.
*/
if (!doclear && !dolink && ends_excmd(*linep)) {
id = syn_namen2id(line, (int)(name_end - line));
if (id == 0)
EMSG2(_("E411: highlight group not found: %s"), line);
else
highlight_list_one(id);
return;
}
/*
* Handle ":highlight link {from} {to}" command.
*/
if (dolink) {
char_u *from_start = linep;
char_u *from_end;
char_u *to_start;
char_u *to_end;
int from_id;
int to_id;
from_end = skiptowhite(from_start);
to_start = skipwhite(from_end);
to_end = skiptowhite(to_start);
if (ends_excmd(*from_start) || ends_excmd(*to_start)) {
EMSG2(_("E412: Not enough arguments: \":highlight link %s\""),
from_start);
return;
}
if (!ends_excmd(*skipwhite(to_end))) {
EMSG2(_("E413: Too many arguments: \":highlight link %s\""), from_start);
return;
}
from_id = syn_check_group(from_start, (int)(from_end - from_start));
if (STRNCMP(to_start, "NONE", 4) == 0)
to_id = 0;
else
to_id = syn_check_group(to_start, (int)(to_end - to_start));
if (from_id > 0 && (!init || HL_TABLE()[from_id - 1].sg_set == 0)) {
/*
* Don't allow a link when there already is some highlighting
* for the group, unless '!' is used
*/
if (to_id > 0 && !forceit && !init
&& hl_has_settings(from_id - 1, dodefault)) {
if (sourcing_name == NULL && !dodefault)
EMSG(_("E414: group has settings, highlight link ignored"));
} else {
if (!init)
HL_TABLE()[from_id - 1].sg_set |= SG_LINK;
HL_TABLE()[from_id - 1].sg_link = to_id;
HL_TABLE()[from_id - 1].sg_scriptID = current_SID;
redraw_all_later(SOME_VALID);
}
}
/* Only call highlight_changed() once, after sourcing a syntax file */
need_highlight_changed = TRUE;
return;
}
if (doclear) {
/*
* ":highlight clear [group]" command.
*/
line = linep;
if (ends_excmd(*line)) {
do_unlet(S_LEN("colors_name"), true);
restore_cterm_colors();
/*
* Clear all default highlight groups and load the defaults.
*/
for (int idx = 0; idx < highlight_ga.ga_len; ++idx) {
highlight_clear(idx);
}
init_highlight(TRUE, TRUE);
highlight_changed();
redraw_later_clear();
return;
}
name_end = skiptowhite(line);
linep = skipwhite(name_end);
}
/*
* Find the group name in the table. If it does not exist yet, add it.
*/
id = syn_check_group(line, (int)(name_end - line));
if (id == 0) /* failed (out of memory) */
return;
idx = id - 1; /* index is ID minus one */
// Return if "default" was used and the group already has settings
if (dodefault && hl_has_settings(idx, true)) {
return;
}
is_normal_group = (STRCMP(HL_TABLE()[idx].sg_name_u, "NORMAL") == 0);
/* Clear the highlighting for ":hi clear {group}" and ":hi clear". */
if (doclear || (forceit && init)) {
highlight_clear(idx);
if (!doclear)
HL_TABLE()[idx].sg_set = 0;
}
if (!doclear) {
while (!ends_excmd(*linep)) {
key_start = linep;
if (*linep == '=') {
EMSG2(_("E415: unexpected equal sign: %s"), key_start);
error = TRUE;
break;
}
// Isolate the key ("term", "ctermfg", "ctermbg", "font", "guifg",
// "guibg" or "guisp").
while (*linep && !ascii_iswhite(*linep) && *linep != '=') {
linep++;
}
xfree(key);
key = vim_strnsave_up(key_start, (int)(linep - key_start));
linep = skipwhite(linep);
if (STRCMP(key, "NONE") == 0) {
if (!init || HL_TABLE()[idx].sg_set == 0) {
if (!init)
HL_TABLE()[idx].sg_set |= SG_CTERM+SG_GUI;
highlight_clear(idx);
}
continue;
}
/*
* Check for the equal sign.
*/
if (*linep != '=') {
EMSG2(_("E416: missing equal sign: %s"), key_start);
error = TRUE;
break;
}
++linep;
/*
* Isolate the argument.
*/
linep = skipwhite(linep);
if (*linep == '\'') { /* guifg='color name' */
arg_start = ++linep;
linep = vim_strchr(linep, '\'');
if (linep == NULL) {
EMSG2(_(e_invarg2), key_start);
error = TRUE;
break;
}
} else {
arg_start = linep;
linep = skiptowhite(linep);
}
if (linep == arg_start) {
EMSG2(_("E417: missing argument: %s"), key_start);
error = TRUE;
break;
}
xfree(arg);
arg = vim_strnsave(arg_start, (int)(linep - arg_start));
if (*linep == '\'')
++linep;
/*
* Store the argument.
*/
if ( STRCMP(key, "TERM") == 0
|| STRCMP(key, "CTERM") == 0
|| STRCMP(key, "GUI") == 0) {
attr = 0;
off = 0;
while (arg[off] != NUL) {
for (i = ARRAY_SIZE(hl_attr_table); --i >= 0; ) {
len = (int)STRLEN(hl_name_table[i]);
if (STRNICMP(arg + off, hl_name_table[i], len) == 0) {
attr |= hl_attr_table[i];
off += len;
break;
}
}
if (i < 0) {
EMSG2(_("E418: Illegal value: %s"), arg);
error = TRUE;
break;
}
if (arg[off] == ',') /* another one follows */
++off;
}
if (error)
break;
if (*key == 'C') {
if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM)) {
if (!init)
HL_TABLE()[idx].sg_set |= SG_CTERM;
HL_TABLE()[idx].sg_cterm = attr;
HL_TABLE()[idx].sg_cterm_bold = FALSE;
}
} else if (*key == 'G') {
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) {
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
HL_TABLE()[idx].sg_gui = attr;
}
}
} else if (STRCMP(key, "FONT") == 0) {
// in non-GUI fonts are simply ignored
} else if (STRCMP(key, "CTERMFG") == 0 || STRCMP(key, "CTERMBG") == 0) {
if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM)) {
if (!init) {
HL_TABLE()[idx].sg_set |= SG_CTERM;
}
/* When setting the foreground color, and previously the "bold"
* flag was set for a light color, reset it now */
if (key[5] == 'F' && HL_TABLE()[idx].sg_cterm_bold) {
HL_TABLE()[idx].sg_cterm &= ~HL_BOLD;
HL_TABLE()[idx].sg_cterm_bold = FALSE;
}
if (ascii_isdigit(*arg))
color = atoi((char *)arg);
else if (STRICMP(arg, "fg") == 0) {
if (cterm_normal_fg_color)
color = cterm_normal_fg_color - 1;
else {
EMSG(_("E419: FG color unknown"));
error = TRUE;
break;
}
} else if (STRICMP(arg, "bg") == 0) {
if (cterm_normal_bg_color > 0)
color = cterm_normal_bg_color - 1;
else {
EMSG(_("E420: BG color unknown"));
error = TRUE;
break;
}
} else {
static char *(color_names[28]) = {
"Black", "DarkBlue", "DarkGreen", "DarkCyan",
"DarkRed", "DarkMagenta", "Brown", "DarkYellow",
"Gray", "Grey",
"LightGray", "LightGrey", "DarkGray", "DarkGrey",
"Blue", "LightBlue", "Green", "LightGreen",
"Cyan", "LightCyan", "Red", "LightRed", "Magenta",
"LightMagenta", "Yellow", "LightYellow", "White", "NONE"
};
static int color_numbers_16[28] = {0, 1, 2, 3,
4, 5, 6, 6,
7, 7,
7, 7, 8, 8,
9, 9, 10, 10,
11, 11, 12, 12, 13,
13, 14, 14, 15, -1};
/* for xterm with 88 colors... */
static int color_numbers_88[28] = {0, 4, 2, 6,
1, 5, 32, 72,
84, 84,
7, 7, 82, 82,
12, 43, 10, 61,
14, 63, 9, 74, 13,
75, 11, 78, 15, -1};
/* for xterm with 256 colors... */
static int color_numbers_256[28] = {0, 4, 2, 6,
1, 5, 130, 130,
248, 248,
7, 7, 242, 242,
12, 81, 10, 121,
14, 159, 9, 224, 13,
225, 11, 229, 15, -1};
/* for terminals with less than 16 colors... */
static int color_numbers_8[28] = {0, 4, 2, 6,
1, 5, 3, 3,
7, 7,
7, 7, 0+8, 0+8,
4+8, 4+8, 2+8, 2+8,
6+8, 6+8, 1+8, 1+8, 5+8,
5+8, 3+8, 3+8, 7+8, -1};
/* reduce calls to STRICMP a bit, it can be slow */
off = TOUPPER_ASC(*arg);
for (i = ARRAY_SIZE(color_names); --i >= 0; )
if (off == color_names[i][0]
&& STRICMP(arg + 1, color_names[i] + 1) == 0)
break;
if (i < 0) {
EMSG2(_(
"E421: Color name or number not recognized: %s"),
key_start);
error = TRUE;
break;
}
/* Use the _16 table to check if its a valid color name. */
color = color_numbers_16[i];
if (color >= 0) {
if (t_colors == 8) {
/* t_Co is 8: use the 8 colors table */
color = color_numbers_8[i];
if (key[5] == 'F') {
/* set/reset bold attribute to get light foreground
* colors (on some terminals, e.g. "linux") */
if (color & 8) {
HL_TABLE()[idx].sg_cterm |= HL_BOLD;
HL_TABLE()[idx].sg_cterm_bold = true;
} else {
HL_TABLE()[idx].sg_cterm &= ~HL_BOLD;
}
}
color &= 7; // truncate to 8 colors
} else if (t_colors == 16 || t_colors == 88 || t_colors >= 256) {
if (t_colors == 88) {
color = color_numbers_88[i];
} else if (t_colors >= 256) {
color = color_numbers_256[i];
} else {
color = color_numbers_8[i];
}
}
}
}
/* Add one to the argument, to avoid zero. Zero is used for
* "NONE", then "color" is -1. */
if (key[5] == 'F') {
HL_TABLE()[idx].sg_cterm_fg = color + 1;
if (is_normal_group) {
cterm_normal_fg_color = color + 1;
cterm_normal_fg_bold = (HL_TABLE()[idx].sg_cterm & HL_BOLD);
{
must_redraw = CLEAR;
}
}
} else {
HL_TABLE()[idx].sg_cterm_bg = color + 1;
if (is_normal_group) {
cterm_normal_bg_color = color + 1;
if (!ui_rgb_attached()) {
must_redraw = CLEAR;
if (color >= 0) {
if (t_colors < 16) {
i = (color == 0 || color == 4);
} else {
i = (color < 7 || color == 8);
}
// Set the 'background' option if the value is
// wrong.
if (i != (*p_bg == 'd')) {
set_option_value("bg", 0L, (i ? "dark" : "light"), 0);
}
}
}
}
}
}
} else if (STRCMP(key, "GUIFG") == 0) {
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) {
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
xfree(HL_TABLE()[idx].sg_rgb_fg_name);
if (STRCMP(arg, "NONE")) {
HL_TABLE()[idx].sg_rgb_fg_name = (uint8_t *)xstrdup((char *)arg);
HL_TABLE()[idx].sg_rgb_fg = name_to_color(arg);
} else {
HL_TABLE()[idx].sg_rgb_fg_name = NULL;
HL_TABLE()[idx].sg_rgb_fg = -1;
}
}
if (is_normal_group) {
normal_fg = HL_TABLE()[idx].sg_rgb_fg;
}
} else if (STRCMP(key, "GUIBG") == 0) {
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) {
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
xfree(HL_TABLE()[idx].sg_rgb_bg_name);
if (STRCMP(arg, "NONE") != 0) {
HL_TABLE()[idx].sg_rgb_bg_name = (uint8_t *)xstrdup((char *)arg);
HL_TABLE()[idx].sg_rgb_bg = name_to_color(arg);
} else {
HL_TABLE()[idx].sg_rgb_bg_name = NULL;
HL_TABLE()[idx].sg_rgb_bg = -1;
}
}
if (is_normal_group) {
normal_bg = HL_TABLE()[idx].sg_rgb_bg;
}
} else if (STRCMP(key, "GUISP") == 0) {
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) {
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
xfree(HL_TABLE()[idx].sg_rgb_sp_name);
if (STRCMP(arg, "NONE") != 0) {
HL_TABLE()[idx].sg_rgb_sp_name = (uint8_t *)xstrdup((char *)arg);
HL_TABLE()[idx].sg_rgb_sp = name_to_color(arg);
} else {
HL_TABLE()[idx].sg_rgb_sp_name = NULL;
HL_TABLE()[idx].sg_rgb_sp = -1;
}
}
if (is_normal_group) {
normal_sp = HL_TABLE()[idx].sg_rgb_sp;
}
} else if (STRCMP(key, "START") == 0 || STRCMP(key, "STOP") == 0) {
// Ignored for now
} else {
EMSG2(_("E423: Illegal argument: %s"), key_start);
error = TRUE;
break;
}
/*
* When highlighting has been given for a group, don't link it.
*/
if (!init || !(HL_TABLE()[idx].sg_set & SG_LINK)) {
HL_TABLE()[idx].sg_link = 0;
}
/*
* Continue with next argument.
*/
linep = skipwhite(linep);
}
}
/*
* If there is an error, and it's a new entry, remove it from the table.
*/
if (error && idx == highlight_ga.ga_len) {
syn_unadd_group();
} else {
if (is_normal_group) {
// Need to update all groups, because they might be using "bg" and/or
// "fg", which have been changed now.
highlight_attr_set_all();
// If the normal group has changed, it is simpler to refresh every UI
ui_refresh();
} else {
set_hl_attr(idx);
}
HL_TABLE()[idx].sg_scriptID = current_SID;
redraw_all_later(NOT_VALID);
}
xfree(key);
xfree(arg);
// Only call highlight_changed() once, after sourcing a syntax file
need_highlight_changed = true;
}
#if defined(EXITFREE)
void free_highlight(void)
{
for (int i = 0; i < highlight_ga.ga_len; ++i) {
highlight_clear(i);
xfree(HL_TABLE()[i].sg_name);
xfree(HL_TABLE()[i].sg_name_u);
}
ga_clear(&highlight_ga);
}
#endif
/*
* Reset the cterm colors to what they were before Vim was started, if
* possible. Otherwise reset them to zero.
*/
void restore_cterm_colors(void)
{
normal_fg = -1;
normal_bg = -1;
normal_sp = -1;
cterm_normal_fg_color = 0;
cterm_normal_fg_bold = 0;
cterm_normal_bg_color = 0;
}
/*
* Return TRUE if highlight group "idx" has any settings.
* When "check_link" is TRUE also check for an existing link.
*/
static int hl_has_settings(int idx, int check_link)
{
return HL_TABLE()[idx].sg_attr != 0
|| HL_TABLE()[idx].sg_cterm_fg != 0
|| HL_TABLE()[idx].sg_cterm_bg != 0
|| HL_TABLE()[idx].sg_rgb_fg_name != NULL
|| HL_TABLE()[idx].sg_rgb_bg_name != NULL
|| HL_TABLE()[idx].sg_rgb_sp_name != NULL
|| (check_link && (HL_TABLE()[idx].sg_set & SG_LINK));
}
/*
* Clear highlighting for one group.
*/
static void highlight_clear(int idx)
{
HL_TABLE()[idx].sg_attr = 0;
HL_TABLE()[idx].sg_cterm = 0;
HL_TABLE()[idx].sg_cterm_bold = FALSE;
HL_TABLE()[idx].sg_cterm_fg = 0;
HL_TABLE()[idx].sg_cterm_bg = 0;
HL_TABLE()[idx].sg_gui = 0;
HL_TABLE()[idx].sg_rgb_fg = -1;
HL_TABLE()[idx].sg_rgb_bg = -1;
HL_TABLE()[idx].sg_rgb_sp = -1;
xfree(HL_TABLE()[idx].sg_rgb_fg_name);
HL_TABLE()[idx].sg_rgb_fg_name = NULL;
xfree(HL_TABLE()[idx].sg_rgb_bg_name);
HL_TABLE()[idx].sg_rgb_bg_name = NULL;
xfree(HL_TABLE()[idx].sg_rgb_sp_name);
HL_TABLE()[idx].sg_rgb_sp_name = NULL;
// Clear the script ID only when there is no link, since that is not
// cleared.
if (HL_TABLE()[idx].sg_link == 0) {
HL_TABLE()[idx].sg_scriptID = 0;
}
}
/// Table with the specifications for an attribute number.
/// Note that this table is used by ALL buffers. This is required because the
/// GUI can redraw at any time for any buffer.
static garray_T attr_table = GA_EMPTY_INIT_VALUE;
static inline attrentry_T * ATTR_ENTRY(int idx)
{
return &((attrentry_T *)attr_table.ga_data)[idx];
}
/// Return the attr number for a set of colors and font.
/// Add a new entry to the term_attr_table, attr_table or gui_attr_table
/// if the combination is new.
/// @return 0 for error.
int get_attr_entry(attrentry_T *aep)
{
garray_T *table = &attr_table;
attrentry_T *taep;
static int recursive = FALSE;
/*
* Init the table, in case it wasn't done yet.
*/
table->ga_itemsize = sizeof(attrentry_T);
ga_set_growsize(table, 7);
/*
* Try to find an entry with the same specifications.
*/
for (int i = 0; i < table->ga_len; ++i) {
taep = &(((attrentry_T *)table->ga_data)[i]);
if (aep->cterm_ae_attr == taep->cterm_ae_attr
&& aep->cterm_fg_color == taep->cterm_fg_color
&& aep->cterm_bg_color == taep->cterm_bg_color
&& aep->rgb_ae_attr == taep->rgb_ae_attr
&& aep->rgb_fg_color == taep->rgb_fg_color
&& aep->rgb_bg_color == taep->rgb_bg_color
&& aep->rgb_sp_color == taep->rgb_sp_color) {
return i + ATTR_OFF;
}
}
if (table->ga_len + ATTR_OFF > MAX_TYPENR) {
/*
* Running out of attribute entries! remove all attributes, and
* compute new ones for all groups.
* When called recursively, we are really out of numbers.
*/
if (recursive) {
EMSG(_("E424: Too many different highlighting attributes in use"));
return 0;
}
recursive = TRUE;
clear_hl_tables();
must_redraw = CLEAR;
for (int i = 0; i < highlight_ga.ga_len; ++i) {
set_hl_attr(i);
}
recursive = FALSE;
}
// This is a new combination of colors and font, add an entry.
taep = GA_APPEND_VIA_PTR(attrentry_T, table);
memset(taep, 0, sizeof(*taep));
taep->cterm_ae_attr = aep->cterm_ae_attr;
taep->cterm_fg_color = aep->cterm_fg_color;
taep->cterm_bg_color = aep->cterm_bg_color;
taep->rgb_ae_attr = aep->rgb_ae_attr;
taep->rgb_fg_color = aep->rgb_fg_color;
taep->rgb_bg_color = aep->rgb_bg_color;
taep->rgb_sp_color = aep->rgb_sp_color;
return table->ga_len - 1 + ATTR_OFF;
}
// Clear all highlight tables.
void clear_hl_tables(void)
{
ga_clear(&attr_table);
}
// Combine special attributes (e.g., for spelling) with other attributes
// (e.g., for syntax highlighting).
// "prim_attr" overrules "char_attr".
// This creates a new group when required.
// Since we expect there to be few spelling mistakes we don't cache the
// result.
// Return the resulting attributes.
int hl_combine_attr(int char_attr, int prim_attr)
{
attrentry_T *char_aep = NULL;
attrentry_T *spell_aep;
attrentry_T new_en = ATTRENTRY_INIT;
if (char_attr == 0) {
return prim_attr;
}
if (prim_attr == 0) {
return char_attr;
}
// Find the entry for char_attr
char_aep = syn_cterm_attr2entry(char_attr);
if (char_aep != NULL) {
// Copy all attributes from char_aep to the new entry
new_en = *char_aep;
}
spell_aep = syn_cterm_attr2entry(prim_attr);
if (spell_aep != NULL) {
new_en.cterm_ae_attr |= spell_aep->cterm_ae_attr;
new_en.rgb_ae_attr |= spell_aep->rgb_ae_attr;
if (spell_aep->cterm_fg_color > 0) {
new_en.cterm_fg_color = spell_aep->cterm_fg_color;
}
if (spell_aep->cterm_bg_color > 0) {
new_en.cterm_bg_color = spell_aep->cterm_bg_color;
}
if (spell_aep->rgb_fg_color >= 0) {
new_en.rgb_fg_color = spell_aep->rgb_fg_color;
}
if (spell_aep->rgb_bg_color >= 0) {
new_en.rgb_bg_color = spell_aep->rgb_bg_color;
}
if (spell_aep->rgb_sp_color >= 0) {
new_en.rgb_sp_color = spell_aep->rgb_sp_color;
}
}
return get_attr_entry(&new_en);
}
/// \note this function does not apply exclusively to cterm attr contrary
/// to what its name implies
/// \warn don't call it with attr 0 (i.e., the null attribute)
attrentry_T *syn_cterm_attr2entry(int attr)
{
attr -= ATTR_OFF;
if (attr >= attr_table.ga_len) {
// did ":syntax clear"
return NULL;
}
return ATTR_ENTRY(attr);
}
/// \addtogroup LIST_XXX
/// @{
#define LIST_ATTR 1
#define LIST_STRING 2
#define LIST_INT 3
/// @}
static void highlight_list_one(int id)
{
struct hl_group *sgp;
int didh = FALSE;
sgp = &HL_TABLE()[id - 1]; /* index is ID minus one */
didh = highlight_list_arg(id, didh, LIST_ATTR,
sgp->sg_cterm, NULL, "cterm");
didh = highlight_list_arg(id, didh, LIST_INT,
sgp->sg_cterm_fg, NULL, "ctermfg");
didh = highlight_list_arg(id, didh, LIST_INT,
sgp->sg_cterm_bg, NULL, "ctermbg");
didh = highlight_list_arg(id, didh, LIST_ATTR,
sgp->sg_gui, NULL, "gui");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_rgb_fg_name, "guifg");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_rgb_bg_name, "guibg");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_rgb_sp_name, "guisp");
if (sgp->sg_link && !got_int) {
(void)syn_list_header(didh, 9999, id);
didh = true;
msg_puts_attr("links to", hl_attr(HLF_D));
msg_putchar(' ');
msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name);
}
if (!didh)
highlight_list_arg(id, didh, LIST_STRING, 0, (char_u *)"cleared", "");
if (p_verbose > 0)
last_set_msg(sgp->sg_scriptID);
}
/// Outputs a highlight when doing ":hi MyHighlight"
///
/// @param type one of \ref LIST_XXX
/// @param iarg integer argument used if \p type == LIST_INT
/// @param sarg string used if \p type == LIST_STRING
static int highlight_list_arg(int id, int didh, int type, int iarg,
char_u *sarg, const char *name)
{
char_u buf[100];
char_u *ts;
int i;
if (got_int)
return FALSE;
if (type == LIST_STRING ? (sarg != NULL) : (iarg != 0)) {
ts = buf;
if (type == LIST_INT)
sprintf((char *)buf, "%d", iarg - 1);
else if (type == LIST_STRING)
ts = sarg;
else { /* type == LIST_ATTR */
buf[0] = NUL;
for (i = 0; hl_attr_table[i] != 0; ++i) {
if (iarg & hl_attr_table[i]) {
if (buf[0] != NUL)
xstrlcat((char *)buf, ",", 100);
xstrlcat((char *)buf, hl_name_table[i], 100);
iarg &= ~hl_attr_table[i]; /* don't want "inverse" */
}
}
}
(void)syn_list_header(didh,
(int)(vim_strsize(ts) + STRLEN(name) + 1), id);
didh = TRUE;
if (!got_int) {
if (*name != NUL) {
MSG_PUTS_ATTR(name, hl_attr(HLF_D));
MSG_PUTS_ATTR("=", hl_attr(HLF_D));
}
msg_outtrans(ts);
}
}
return didh;
}
/// Check whether highlight group has attribute
///
/// @param[in] id Highlight group to check.
/// @param[in] flag Attribute to check.
/// @param[in] modec 'g' for GUI, 'c' for term.
///
/// @return "1" if highlight group has attribute, NULL otherwise.
const char *highlight_has_attr(const int id, const int flag, const int modec)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_PURE
{
int attr;
if (id <= 0 || id > highlight_ga.ga_len) {
return NULL;
}
if (modec == 'g') {
attr = HL_TABLE()[id - 1].sg_gui;
} else {
attr = HL_TABLE()[id - 1].sg_cterm;
}
return (attr & flag) ? "1" : NULL;
}
/// Return color name of the given highlight group
///
/// @param[in] id Highlight group to work with.
/// @param[in] what What to return: one of "font", "fg", "bg", "sp", "fg#",
/// "bg#" or "sp#".
/// @param[in] modec 'g' for GUI, 'c' for cterm and 't' for term.
///
/// @return color name, possibly in a static buffer. Buffer will be overwritten
/// on next highlight_color() call. May return NULL.
const char *highlight_color(const int id, const char *const what,
const int modec)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
static char name[20];
int n;
bool fg = false;
bool sp = false;
bool font = false;
if (id <= 0 || id > highlight_ga.ga_len) {
return NULL;
}
if (TOLOWER_ASC(what[0]) == 'f' && TOLOWER_ASC(what[1]) == 'g') {
fg = true;
} else if (TOLOWER_ASC(what[0]) == 'f' && TOLOWER_ASC(what[1]) == 'o'
&& TOLOWER_ASC(what[2]) == 'n' && TOLOWER_ASC(what[3]) == 't') {
font = true;
} else if (TOLOWER_ASC(what[0]) == 's' && TOLOWER_ASC(what[1]) == 'p') {
sp = true;
} else if (!(TOLOWER_ASC(what[0]) == 'b' && TOLOWER_ASC(what[1]) == 'g')) {
return NULL;
}
if (modec == 'g') {
if (what[2] == '#' && ui_rgb_attached()) {
if (fg) {
n = HL_TABLE()[id - 1].sg_rgb_fg;
} else if (sp) {
n = HL_TABLE()[id - 1].sg_rgb_sp;
} else {
n = HL_TABLE()[id - 1].sg_rgb_bg;
}
if (n < 0 || n > 0xffffff) {
return NULL;
}
snprintf(name, sizeof(name), "#%06x", n);
return name;
}
if (fg) {
return (const char *)HL_TABLE()[id - 1].sg_rgb_fg_name;
}
if (sp) {
return (const char *)HL_TABLE()[id - 1].sg_rgb_sp_name;
}
return (const char *)HL_TABLE()[id - 1].sg_rgb_bg_name;
}
if (font || sp) {
return NULL;
}
if (modec == 'c') {
if (fg) {
n = HL_TABLE()[id - 1].sg_cterm_fg - 1;
} else {
n = HL_TABLE()[id - 1].sg_cterm_bg - 1;
}
if (n < 0) {
return NULL;
}
snprintf(name, sizeof(name), "%d", n);
return name;
}
// term doesn't have color.
return NULL;
}
/// Output the syntax list header.
///
/// @param did_header did header already
/// @param outlen length of string that comes
/// @param id highlight group id
/// @return true when started a new line.
static int
syn_list_header(int did_header, int outlen, int id)
{
int endcol = 19;
int newline = TRUE;
if (!did_header) {
msg_putchar('\n');
if (got_int) {
return true;
}
msg_outtrans(HL_TABLE()[id - 1].sg_name);
endcol = 15;
} else if (msg_col + outlen + 1 >= Columns) {
msg_putchar('\n');
if (got_int)
return TRUE;
} else {
if (msg_col >= endcol) /* wrap around is like starting a new line */
newline = FALSE;
}
if (msg_col >= endcol) /* output at least one space */
endcol = msg_col + 1;
if (Columns <= endcol) /* avoid hang for tiny window */
endcol = Columns - 1;
msg_advance(endcol);
/* Show "xxx" with the attributes. */
if (!did_header) {
msg_puts_attr("xxx", syn_id2attr(id));
msg_putchar(' ');
}
return newline;
}
/// Set the attribute numbers for a highlight group.
/// Called after one of the attributes has changed.
/// @param idx corrected highlight index
static void
set_hl_attr(int idx)
{
attrentry_T at_en = ATTRENTRY_INIT;
struct hl_group *sgp = HL_TABLE() + idx;
at_en.cterm_ae_attr = sgp->sg_cterm;
at_en.cterm_fg_color = sgp->sg_cterm_fg;
at_en.cterm_bg_color = sgp->sg_cterm_bg;
at_en.rgb_ae_attr = sgp->sg_gui;
// FIXME(tarruda): The "unset value" for rgb is -1, but since hlgroup is
// initialized with 0(by garray functions), check for sg_rgb_{f,b}g_name
// before setting attr_entry->{f,g}g_color to a other than -1
at_en.rgb_fg_color = sgp->sg_rgb_fg_name ? sgp->sg_rgb_fg : -1;
at_en.rgb_bg_color = sgp->sg_rgb_bg_name ? sgp->sg_rgb_bg : -1;
at_en.rgb_sp_color = sgp->sg_rgb_sp_name ? sgp->sg_rgb_sp : -1;
if (at_en.cterm_fg_color != 0 || at_en.cterm_bg_color != 0
|| at_en.rgb_fg_color != -1 || at_en.rgb_bg_color != -1
|| at_en.rgb_sp_color != -1 || at_en.cterm_ae_attr != 0
|| at_en.rgb_ae_attr != 0) {
sgp->sg_attr = get_attr_entry(&at_en);
} else {
// If all the fields are cleared, clear the attr field back to default value
sgp->sg_attr = 0;
}
}
/// Lookup a highlight group name and return its ID.
///
/// @param highlight name e.g. 'Cursor', 'Normal'
/// @return the highlight id, else 0 if \p name does not exist
int syn_name2id(const char_u *name)
{
int i;
char_u name_u[200];
/* Avoid using stricmp() too much, it's slow on some systems */
/* Avoid alloc()/free(), these are slow too. ID names over 200 chars
* don't deserve to be found! */
STRLCPY(name_u, name, 200);
vim_strup(name_u);
for (i = highlight_ga.ga_len; --i >= 0; )
if (HL_TABLE()[i].sg_name_u != NULL
&& STRCMP(name_u, HL_TABLE()[i].sg_name_u) == 0)
break;
return i + 1;
}
/*
* Return TRUE if highlight group "name" exists.
*/
int highlight_exists(const char_u *name)
{
return syn_name2id(name) > 0;
}
/*
* Return the name of highlight group "id".
* When not a valid ID return an empty string.
*/
char_u *syn_id2name(int id)
{
if (id <= 0 || id > highlight_ga.ga_len)
return (char_u *)"";
return HL_TABLE()[id - 1].sg_name;
}
/*
* Like syn_name2id(), but take a pointer + length argument.
*/
int syn_namen2id(char_u *linep, int len)
{
char_u *name = vim_strnsave(linep, len);
int id = syn_name2id(name);
xfree(name);
return id;
}
/// Find highlight group name in the table and return its ID.
/// If it doesn't exist yet, a new entry is created.
///
/// @param pp Highlight group name
/// @param len length of \p pp
///
/// @return 0 for failure else the id of the group
int syn_check_group(char_u *pp, int len)
{
char_u *name = vim_strnsave(pp, len);
int id = syn_name2id(name);
if (id == 0) { // doesn't exist yet
id = syn_add_group(name);
} else {
xfree(name);
}
return id;
}
/// Add new highlight group and return it's ID.
///
/// @param name must be an allocated string, it will be consumed.
/// @return 0 for failure, else the allocated group id
/// @see syn_check_group syn_unadd_group
static int syn_add_group(char_u *name)
{
char_u *p;
/* Check that the name is ASCII letters, digits and underscore. */
for (p = name; *p != NUL; ++p) {
if (!vim_isprintc(*p)) {
EMSG(_("E669: Unprintable character in group name"));
xfree(name);
return 0;
} else if (!ASCII_ISALNUM(*p) && *p != '_') {
/* This is an error, but since there previously was no check only
* give a warning. */
msg_source(hl_attr(HLF_W));
MSG(_("W18: Invalid character in group name"));
break;
}
}
/*
* First call for this growarray: init growing array.
*/
if (highlight_ga.ga_data == NULL) {
highlight_ga.ga_itemsize = sizeof(struct hl_group);
ga_set_growsize(&highlight_ga, 10);
}
if (highlight_ga.ga_len >= MAX_HL_ID) {
EMSG(_("E849: Too many highlight and syntax groups"));
xfree(name);
return 0;
}
// Append another syntax_highlight entry.
struct hl_group* hlgp = GA_APPEND_VIA_PTR(struct hl_group, &highlight_ga);
memset(hlgp, 0, sizeof(*hlgp));
hlgp->sg_name = name;
hlgp->sg_rgb_bg = -1;
hlgp->sg_rgb_fg = -1;
hlgp->sg_rgb_sp = -1;
hlgp->sg_name_u = vim_strsave_up(name);
return highlight_ga.ga_len; /* ID is index plus one */
}
/// When, just after calling syn_add_group(), an error is discovered, this
/// function deletes the new name.
static void syn_unadd_group(void)
{
highlight_ga.ga_len--;
xfree(HL_TABLE()[highlight_ga.ga_len].sg_name);
xfree(HL_TABLE()[highlight_ga.ga_len].sg_name_u);
}
/// Translate a group ID to highlight attributes.
/// @see syn_cterm_attr2entry
int syn_id2attr(int hl_id)
{
struct hl_group *sgp;
hl_id = syn_get_final_id(hl_id);
sgp = &HL_TABLE()[hl_id - 1]; /* index is ID minus one */
return sgp->sg_attr;
}
/*
* Translate a group ID to the final group ID (following links).
*/
int syn_get_final_id(int hl_id)
{
int count;
struct hl_group *sgp;
if (hl_id > highlight_ga.ga_len || hl_id < 1)
return 0; /* Can be called from eval!! */
/*
* Follow links until there is no more.
* Look out for loops! Break after 100 links.
*/
for (count = 100; --count >= 0; ) {
sgp = &HL_TABLE()[hl_id - 1]; /* index is ID minus one */
if (sgp->sg_link == 0 || sgp->sg_link > highlight_ga.ga_len)
break;
hl_id = sgp->sg_link;
}
return hl_id;
}
/// Refresh the color attributes of all highlight groups.
static void highlight_attr_set_all(void)
{
for (int idx = 0; idx < highlight_ga.ga_len; idx++) {
struct hl_group *sgp = &HL_TABLE()[idx];
if (sgp->sg_rgb_bg_name != NULL) {
sgp->sg_rgb_bg = name_to_color(sgp->sg_rgb_bg_name);
}
if (sgp->sg_rgb_fg_name != NULL) {
sgp->sg_rgb_fg = name_to_color(sgp->sg_rgb_fg_name);
}
if (sgp->sg_rgb_sp_name != NULL) {
sgp->sg_rgb_sp = name_to_color(sgp->sg_rgb_sp_name);
}
set_hl_attr(idx);
}
}
/// Tranlate highlight groups into attributes in highlight_attr[] and set up
/// the user highlights User1..9. A set of corresponding highlights to use on
/// top of HLF_SNC is computed. Called only when nvim starts and upon first
/// screen redraw after any :highlight command.
void highlight_changed(void)
{
int attr;
int id;
char_u userhl[10];
int id_SNC = -1;
int id_S = -1;
int hlcnt;
need_highlight_changed = FALSE;
/// Translate builtin highlight groups into attributes for quick lookup.
for (int hlf = 0; hlf < (int)HLF_COUNT; hlf++) {
id = syn_check_group((char_u *)hlf_names[hlf], STRLEN(hlf_names[hlf]));
if (id == 0) {
abort();
}
attr = syn_id2attr(id);
if (hlf == (int)HLF_SNC) {
id_SNC = syn_get_final_id(id);
} else if (hlf == (int)HLF_S) {
id_S = syn_get_final_id(id);
}
highlight_attr[hlf] = attr;
}
/* Setup the user highlights
*
* Temporarily utilize 10 more hl entries. Have to be in there
* simultaneously in case of table overflows in get_attr_entry()
*/
ga_grow(&highlight_ga, 10);
hlcnt = highlight_ga.ga_len;
if (id_S == 0) { /* Make sure id_S is always valid to simplify code below */
memset(&HL_TABLE()[hlcnt + 9], 0, sizeof(struct hl_group));
id_S = hlcnt + 10;
}
for (int i = 0; i < 9; i++) {
sprintf((char *)userhl, "User%d", i + 1);
id = syn_name2id(userhl);
if (id == 0) {
highlight_user[i] = 0;
highlight_stlnc[i] = 0;
} else {
struct hl_group *hlt = HL_TABLE();
highlight_user[i] = syn_id2attr(id);
if (id_SNC == 0) {
memset(&hlt[hlcnt + i], 0, sizeof(struct hl_group));
hlt[hlcnt + i].sg_cterm = highlight_attr[HLF_SNC];
hlt[hlcnt + i].sg_gui = highlight_attr[HLF_SNC];
} else
memmove(&hlt[hlcnt + i],
&hlt[id_SNC - 1],
sizeof(struct hl_group));
hlt[hlcnt + i].sg_link = 0;
/* Apply difference between UserX and HLF_S to HLF_SNC */
hlt[hlcnt + i].sg_cterm ^= hlt[id - 1].sg_cterm ^ hlt[id_S - 1].sg_cterm;
if (hlt[id - 1].sg_cterm_fg != hlt[id_S - 1].sg_cterm_fg) {
hlt[hlcnt + i].sg_cterm_fg = hlt[id - 1].sg_cterm_fg;
}
if (hlt[id - 1].sg_cterm_bg != hlt[id_S - 1].sg_cterm_bg) {
hlt[hlcnt + i].sg_cterm_bg = hlt[id - 1].sg_cterm_bg;
}
hlt[hlcnt + i].sg_gui ^= hlt[id - 1].sg_gui ^ hlt[id_S - 1].sg_gui;
if (hlt[id - 1].sg_rgb_fg != hlt[id_S - 1].sg_rgb_fg) {
hlt[hlcnt + i].sg_rgb_fg = hlt[id - 1].sg_rgb_fg;
}
if (hlt[id - 1].sg_rgb_bg != hlt[id_S - 1].sg_rgb_bg) {
hlt[hlcnt + i].sg_rgb_bg = hlt[id - 1].sg_rgb_bg;
}
if (hlt[id - 1].sg_rgb_sp != hlt[id_S - 1].sg_rgb_sp) {
hlt[hlcnt + i].sg_rgb_sp = hlt[id - 1].sg_rgb_sp;
}
highlight_ga.ga_len = hlcnt + i + 1;
set_hl_attr(hlcnt + i); /* At long last we can apply */
highlight_stlnc[i] = syn_id2attr(hlcnt + i + 1);
}
}
highlight_ga.ga_len = hlcnt;
}
/*
* Handle command line completion for :highlight command.
*/
void set_context_in_highlight_cmd(expand_T *xp, const char *arg)
{
// Default: expand group names.
xp->xp_context = EXPAND_HIGHLIGHT;
xp->xp_pattern = (char_u *)arg;
include_link = 2;
include_default = 1;
/* (part of) subcommand already typed */
if (*arg != NUL) {
const char *p = (const char *)skiptowhite((const char_u *)arg);
if (*p != NUL) { // Past "default" or group name.
include_default = 0;
if (strncmp("default", arg, p - arg) == 0) {
arg = (const char *)skipwhite((const char_u *)p);
xp->xp_pattern = (char_u *)arg;
p = (const char *)skiptowhite((const char_u *)arg);
}
if (*p != NUL) { /* past group name */
include_link = 0;
if (arg[1] == 'i' && arg[0] == 'N') {
highlight_list();
}
if (strncmp("link", arg, p - arg) == 0
|| strncmp("clear", arg, p - arg) == 0) {
xp->xp_pattern = skipwhite((const char_u *)p);
p = (const char *)skiptowhite(xp->xp_pattern);
if (*p != NUL) { // Past first group name.
xp->xp_pattern = skipwhite((const char_u *)p);
p = (const char *)skiptowhite(xp->xp_pattern);
}
}
if (*p != NUL) { // Past group name(s).
xp->xp_context = EXPAND_NOTHING;
}
}
}
}
}
/*
* List highlighting matches in a nice way.
*/
static void highlight_list(void)
{
int i;
for (i = 10; --i >= 0; )
highlight_list_two(i, hl_attr(HLF_D));
for (i = 40; --i >= 0; )
highlight_list_two(99, 0);
}
static void highlight_list_two(int cnt, int attr)
{
msg_puts_attr(&("N \bI \b! \b"[cnt / 11]), attr);
msg_clr_eos();
ui_flush();
os_delay(cnt == 99 ? 40L : (long)cnt * 50L, false);
}
/*
* Function given to ExpandGeneric() to obtain the list of group names.
* Also used for synIDattr() function.
*/
const char *get_highlight_name(expand_T *const xp, const int idx)
FUNC_ATTR_WARN_UNUSED_RESULT
{
// TODO(justinmk): 'xp' is unused
if (idx == highlight_ga.ga_len && include_none != 0) {
return "none";
} else if (idx == highlight_ga.ga_len + include_none
&& include_default != 0) {
return "default";
} else if (idx == highlight_ga.ga_len + include_none + include_default
&& include_link != 0) {
return "link";
} else if (idx == highlight_ga.ga_len + include_none + include_default + 1
&& include_link != 0) {
return "clear";
} else if (idx < 0 || idx >= highlight_ga.ga_len) {
return NULL;
}
return (const char *)HL_TABLE()[idx].sg_name;
}
color_name_table_T color_name_table[] = {
// Colors from rgb.txt
{ "AliceBlue", RGB(0xf0, 0xf8, 0xff) },
{ "AntiqueWhite", RGB(0xfa, 0xeb, 0xd7) },
{ "AntiqueWhite1", RGB(0xff, 0xef, 0xdb) },
{ "AntiqueWhite2", RGB(0xee, 0xdf, 0xcc) },
{ "AntiqueWhite3", RGB(0xcd, 0xc0, 0xb0) },
{ "AntiqueWhite4", RGB(0x8b, 0x83, 0x78) },
{ "Aqua", RGB(0x00, 0xff, 0xff) },
{ "Aquamarine", RGB(0x7f, 0xff, 0xd4) },
{ "Aquamarine1", RGB(0x7f, 0xff, 0xd4) },
{ "Aquamarine2", RGB(0x76, 0xee, 0xc6) },
{ "Aquamarine3", RGB(0x66, 0xcd, 0xaa) },
{ "Aquamarine4", RGB(0x45, 0x8b, 0x74) },
{ "Azure", RGB(0xf0, 0xff, 0xff) },
{ "Azure1", RGB(0xf0, 0xff, 0xff) },
{ "Azure2", RGB(0xe0, 0xee, 0xee) },
{ "Azure3", RGB(0xc1, 0xcd, 0xcd) },
{ "Azure4", RGB(0x83, 0x8b, 0x8b) },
{ "Beige", RGB(0xf5, 0xf5, 0xdc) },
{ "Bisque", RGB(0xff, 0xe4, 0xc4) },
{ "Bisque1", RGB(0xff, 0xe4, 0xc4) },
{ "Bisque2", RGB(0xee, 0xd5, 0xb7) },
{ "Bisque3", RGB(0xcd, 0xb7, 0x9e) },
{ "Bisque4", RGB(0x8b, 0x7d, 0x6b) },
{ "Black", RGB(0x00, 0x00, 0x00) },
{ "BlanchedAlmond", RGB(0xff, 0xeb, 0xcd) },
{ "Blue", RGB(0x00, 0x00, 0xff) },
{ "Blue1", RGB(0x0, 0x0, 0xff) },
{ "Blue2", RGB(0x0, 0x0, 0xee) },
{ "Blue3", RGB(0x0, 0x0, 0xcd) },
{ "Blue4", RGB(0x0, 0x0, 0x8b) },
{ "BlueViolet", RGB(0x8a, 0x2b, 0xe2) },
{ "Brown", RGB(0xa5, 0x2a, 0x2a) },
{ "Brown1", RGB(0xff, 0x40, 0x40) },
{ "Brown2", RGB(0xee, 0x3b, 0x3b) },
{ "Brown3", RGB(0xcd, 0x33, 0x33) },
{ "Brown4", RGB(0x8b, 0x23, 0x23) },
{ "BurlyWood", RGB(0xde, 0xb8, 0x87) },
{ "Burlywood1", RGB(0xff, 0xd3, 0x9b) },
{ "Burlywood2", RGB(0xee, 0xc5, 0x91) },
{ "Burlywood3", RGB(0xcd, 0xaa, 0x7d) },
{ "Burlywood4", RGB(0x8b, 0x73, 0x55) },
{ "CadetBlue", RGB(0x5f, 0x9e, 0xa0) },
{ "CadetBlue1", RGB(0x98, 0xf5, 0xff) },
{ "CadetBlue2", RGB(0x8e, 0xe5, 0xee) },
{ "CadetBlue3", RGB(0x7a, 0xc5, 0xcd) },
{ "CadetBlue4", RGB(0x53, 0x86, 0x8b) },
{ "ChartReuse", RGB(0x7f, 0xff, 0x00) },
{ "Chartreuse1", RGB(0x7f, 0xff, 0x0) },
{ "Chartreuse2", RGB(0x76, 0xee, 0x0) },
{ "Chartreuse3", RGB(0x66, 0xcd, 0x0) },
{ "Chartreuse4", RGB(0x45, 0x8b, 0x0) },
{ "Chocolate", RGB(0xd2, 0x69, 0x1e) },
{ "Chocolate1", RGB(0xff, 0x7f, 0x24) },
{ "Chocolate2", RGB(0xee, 0x76, 0x21) },
{ "Chocolate3", RGB(0xcd, 0x66, 0x1d) },
{ "Chocolate4", RGB(0x8b, 0x45, 0x13) },
{ "Coral", RGB(0xff, 0x7f, 0x50) },
{ "Coral1", RGB(0xff, 0x72, 0x56) },
{ "Coral2", RGB(0xee, 0x6a, 0x50) },
{ "Coral3", RGB(0xcd, 0x5b, 0x45) },
{ "Coral4", RGB(0x8b, 0x3e, 0x2f) },
{ "CornFlowerBlue", RGB(0x64, 0x95, 0xed) },
{ "Cornsilk", RGB(0xff, 0xf8, 0xdc) },
{ "Cornsilk1", RGB(0xff, 0xf8, 0xdc) },
{ "Cornsilk2", RGB(0xee, 0xe8, 0xcd) },
{ "Cornsilk3", RGB(0xcd, 0xc8, 0xb1) },
{ "Cornsilk4", RGB(0x8b, 0x88, 0x78) },
{ "Crimson", RGB(0xdc, 0x14, 0x3c) },
{ "Cyan", RGB(0x00, 0xff, 0xff) },
{ "Cyan1", RGB(0x0, 0xff, 0xff) },
{ "Cyan2", RGB(0x0, 0xee, 0xee) },
{ "Cyan3", RGB(0x0, 0xcd, 0xcd) },
{ "Cyan4", RGB(0x0, 0x8b, 0x8b) },
{ "DarkBlue", RGB(0x00, 0x00, 0x8b) },
{ "DarkCyan", RGB(0x00, 0x8b, 0x8b) },
{ "DarkGoldenRod", RGB(0xb8, 0x86, 0x0b) },
{ "DarkGoldenrod1", RGB(0xff, 0xb9, 0xf) },
{ "DarkGoldenrod2", RGB(0xee, 0xad, 0xe) },
{ "DarkGoldenrod3", RGB(0xcd, 0x95, 0xc) },
{ "DarkGoldenrod4", RGB(0x8b, 0x65, 0x8) },
{ "DarkGray", RGB(0xa9, 0xa9, 0xa9) },
{ "DarkGreen", RGB(0x00, 0x64, 0x00) },
{ "DarkGrey", RGB(0xa9, 0xa9, 0xa9) },
{ "DarkKhaki", RGB(0xbd, 0xb7, 0x6b) },
{ "DarkMagenta", RGB(0x8b, 0x00, 0x8b) },
{ "DarkOliveGreen", RGB(0x55, 0x6b, 0x2f) },
{ "DarkOliveGreen1", RGB(0xca, 0xff, 0x70) },
{ "DarkOliveGreen2", RGB(0xbc, 0xee, 0x68) },
{ "DarkOliveGreen3", RGB(0xa2, 0xcd, 0x5a) },
{ "DarkOliveGreen4", RGB(0x6e, 0x8b, 0x3d) },
{ "DarkOrange", RGB(0xff, 0x8c, 0x00) },
{ "DarkOrange1", RGB(0xff, 0x7f, 0x0) },
{ "DarkOrange2", RGB(0xee, 0x76, 0x0) },
{ "DarkOrange3", RGB(0xcd, 0x66, 0x0) },
{ "DarkOrange4", RGB(0x8b, 0x45, 0x0) },
{ "DarkOrchid", RGB(0x99, 0x32, 0xcc) },
{ "DarkOrchid1", RGB(0xbf, 0x3e, 0xff) },
{ "DarkOrchid2", RGB(0xb2, 0x3a, 0xee) },
{ "DarkOrchid3", RGB(0x9a, 0x32, 0xcd) },
{ "DarkOrchid4", RGB(0x68, 0x22, 0x8b) },
{ "DarkRed", RGB(0x8b, 0x00, 0x00) },
{ "DarkSalmon", RGB(0xe9, 0x96, 0x7a) },
{ "DarkSeaGreen", RGB(0x8f, 0xbc, 0x8f) },
{ "DarkSeaGreen1", RGB(0xc1, 0xff, 0xc1) },
{ "DarkSeaGreen2", RGB(0xb4, 0xee, 0xb4) },
{ "DarkSeaGreen3", RGB(0x9b, 0xcd, 0x9b) },
{ "DarkSeaGreen4", RGB(0x69, 0x8b, 0x69) },
{ "DarkSlateBlue", RGB(0x48, 0x3d, 0x8b) },
{ "DarkSlateGray", RGB(0x2f, 0x4f, 0x4f) },
{ "DarkSlateGray1", RGB(0x97, 0xff, 0xff) },
{ "DarkSlateGray2", RGB(0x8d, 0xee, 0xee) },
{ "DarkSlateGray3", RGB(0x79, 0xcd, 0xcd) },
{ "DarkSlateGray4", RGB(0x52, 0x8b, 0x8b) },
{ "DarkSlateGrey", RGB(0x2f, 0x4f, 0x4f) },
{ "DarkTurquoise", RGB(0x00, 0xce, 0xd1) },
{ "DarkViolet", RGB(0x94, 0x00, 0xd3) },
{ "DarkYellow", RGB(0xbb, 0xbb, 0x00) },
{ "DeepPink", RGB(0xff, 0x14, 0x93) },
{ "DeepPink1", RGB(0xff, 0x14, 0x93) },
{ "DeepPink2", RGB(0xee, 0x12, 0x89) },
{ "DeepPink3", RGB(0xcd, 0x10, 0x76) },
{ "DeepPink4", RGB(0x8b, 0xa, 0x50) },
{ "DeepSkyBlue", RGB(0x00, 0xbf, 0xff) },
{ "DeepSkyBlue1", RGB(0x0, 0xbf, 0xff) },
{ "DeepSkyBlue2", RGB(0x0, 0xb2, 0xee) },
{ "DeepSkyBlue3", RGB(0x0, 0x9a, 0xcd) },
{ "DeepSkyBlue4", RGB(0x0, 0x68, 0x8b) },
{ "DimGray", RGB(0x69, 0x69, 0x69) },
{ "DimGrey", RGB(0x69, 0x69, 0x69) },
{ "DodgerBlue", RGB(0x1e, 0x90, 0xff) },
{ "DodgerBlue1", RGB(0x1e, 0x90, 0xff) },
{ "DodgerBlue2", RGB(0x1c, 0x86, 0xee) },
{ "DodgerBlue3", RGB(0x18, 0x74, 0xcd) },
{ "DodgerBlue4", RGB(0x10, 0x4e, 0x8b) },
{ "Firebrick", RGB(0xb2, 0x22, 0x22) },
{ "Firebrick1", RGB(0xff, 0x30, 0x30) },
{ "Firebrick2", RGB(0xee, 0x2c, 0x2c) },
{ "Firebrick3", RGB(0xcd, 0x26, 0x26) },
{ "Firebrick4", RGB(0x8b, 0x1a, 0x1a) },
{ "FloralWhite", RGB(0xff, 0xfa, 0xf0) },
{ "ForestGreen", RGB(0x22, 0x8b, 0x22) },
{ "Fuchsia", RGB(0xff, 0x00, 0xff) },
{ "Gainsboro", RGB(0xdc, 0xdc, 0xdc) },
{ "GhostWhite", RGB(0xf8, 0xf8, 0xff) },
{ "Gold", RGB(0xff, 0xd7, 0x00) },
{ "Gold1", RGB(0xff, 0xd7, 0x0) },
{ "Gold2", RGB(0xee, 0xc9, 0x0) },
{ "Gold3", RGB(0xcd, 0xad, 0x0) },
{ "Gold4", RGB(0x8b, 0x75, 0x0) },
{ "GoldenRod", RGB(0xda, 0xa5, 0x20) },
{ "Goldenrod1", RGB(0xff, 0xc1, 0x25) },
{ "Goldenrod2", RGB(0xee, 0xb4, 0x22) },
{ "Goldenrod3", RGB(0xcd, 0x9b, 0x1d) },
{ "Goldenrod4", RGB(0x8b, 0x69, 0x14) },
{ "Gray", RGB(0x80, 0x80, 0x80) },
{ "Gray0", RGB(0x0, 0x0, 0x0) },
{ "Gray1", RGB(0x3, 0x3, 0x3) },
{ "Gray10", RGB(0x1a, 0x1a, 0x1a) },
{ "Gray100", RGB(0xff, 0xff, 0xff) },
{ "Gray11", RGB(0x1c, 0x1c, 0x1c) },
{ "Gray12", RGB(0x1f, 0x1f, 0x1f) },
{ "Gray13", RGB(0x21, 0x21, 0x21) },
{ "Gray14", RGB(0x24, 0x24, 0x24) },
{ "Gray15", RGB(0x26, 0x26, 0x26) },
{ "Gray16", RGB(0x29, 0x29, 0x29) },
{ "Gray17", RGB(0x2b, 0x2b, 0x2b) },
{ "Gray18", RGB(0x2e, 0x2e, 0x2e) },
{ "Gray19", RGB(0x30, 0x30, 0x30) },
{ "Gray2", RGB(0x5, 0x5, 0x5) },
{ "Gray20", RGB(0x33, 0x33, 0x33) },
{ "Gray21", RGB(0x36, 0x36, 0x36) },
{ "Gray22", RGB(0x38, 0x38, 0x38) },
{ "Gray23", RGB(0x3b, 0x3b, 0x3b) },
{ "Gray24", RGB(0x3d, 0x3d, 0x3d) },
{ "Gray25", RGB(0x40, 0x40, 0x40) },
{ "Gray26", RGB(0x42, 0x42, 0x42) },
{ "Gray27", RGB(0x45, 0x45, 0x45) },
{ "Gray28", RGB(0x47, 0x47, 0x47) },
{ "Gray29", RGB(0x4a, 0x4a, 0x4a) },
{ "Gray3", RGB(0x8, 0x8, 0x8) },
{ "Gray30", RGB(0x4d, 0x4d, 0x4d) },
{ "Gray31", RGB(0x4f, 0x4f, 0x4f) },
{ "Gray32", RGB(0x52, 0x52, 0x52) },
{ "Gray33", RGB(0x54, 0x54, 0x54) },
{ "Gray34", RGB(0x57, 0x57, 0x57) },
{ "Gray35", RGB(0x59, 0x59, 0x59) },
{ "Gray36", RGB(0x5c, 0x5c, 0x5c) },
{ "Gray37", RGB(0x5e, 0x5e, 0x5e) },
{ "Gray38", RGB(0x61, 0x61, 0x61) },
{ "Gray39", RGB(0x63, 0x63, 0x63) },
{ "Gray4", RGB(0xa, 0xa, 0xa) },
{ "Gray40", RGB(0x66, 0x66, 0x66) },
{ "Gray41", RGB(0x69, 0x69, 0x69) },
{ "Gray42", RGB(0x6b, 0x6b, 0x6b) },
{ "Gray43", RGB(0x6e, 0x6e, 0x6e) },
{ "Gray44", RGB(0x70, 0x70, 0x70) },
{ "Gray45", RGB(0x73, 0x73, 0x73) },
{ "Gray46", RGB(0x75, 0x75, 0x75) },
{ "Gray47", RGB(0x78, 0x78, 0x78) },
{ "Gray48", RGB(0x7a, 0x7a, 0x7a) },
{ "Gray49", RGB(0x7d, 0x7d, 0x7d) },
{ "Gray5", RGB(0xd, 0xd, 0xd) },
{ "Gray50", RGB(0x7f, 0x7f, 0x7f) },
{ "Gray51", RGB(0x82, 0x82, 0x82) },
{ "Gray52", RGB(0x85, 0x85, 0x85) },
{ "Gray53", RGB(0x87, 0x87, 0x87) },
{ "Gray54", RGB(0x8a, 0x8a, 0x8a) },
{ "Gray55", RGB(0x8c, 0x8c, 0x8c) },
{ "Gray56", RGB(0x8f, 0x8f, 0x8f) },
{ "Gray57", RGB(0x91, 0x91, 0x91) },
{ "Gray58", RGB(0x94, 0x94, 0x94) },
{ "Gray59", RGB(0x96, 0x96, 0x96) },
{ "Gray6", RGB(0xf, 0xf, 0xf) },
{ "Gray60", RGB(0x99, 0x99, 0x99) },
{ "Gray61", RGB(0x9c, 0x9c, 0x9c) },
{ "Gray62", RGB(0x9e, 0x9e, 0x9e) },
{ "Gray63", RGB(0xa1, 0xa1, 0xa1) },
{ "Gray64", RGB(0xa3, 0xa3, 0xa3) },
{ "Gray65", RGB(0xa6, 0xa6, 0xa6) },
{ "Gray66", RGB(0xa8, 0xa8, 0xa8) },
{ "Gray67", RGB(0xab, 0xab, 0xab) },
{ "Gray68", RGB(0xad, 0xad, 0xad) },
{ "Gray69", RGB(0xb0, 0xb0, 0xb0) },
{ "Gray7", RGB(0x12, 0x12, 0x12) },
{ "Gray70", RGB(0xb3, 0xb3, 0xb3) },
{ "Gray71", RGB(0xb5, 0xb5, 0xb5) },
{ "Gray72", RGB(0xb8, 0xb8, 0xb8) },
{ "Gray73", RGB(0xba, 0xba, 0xba) },
{ "Gray74", RGB(0xbd, 0xbd, 0xbd) },
{ "Gray75", RGB(0xbf, 0xbf, 0xbf) },
{ "Gray76", RGB(0xc2, 0xc2, 0xc2) },
{ "Gray77", RGB(0xc4, 0xc4, 0xc4) },
{ "Gray78", RGB(0xc7, 0xc7, 0xc7) },
{ "Gray79", RGB(0xc9, 0xc9, 0xc9) },
{ "Gray8", RGB(0x14, 0x14, 0x14) },
{ "Gray80", RGB(0xcc, 0xcc, 0xcc) },
{ "Gray81", RGB(0xcf, 0xcf, 0xcf) },
{ "Gray82", RGB(0xd1, 0xd1, 0xd1) },
{ "Gray83", RGB(0xd4, 0xd4, 0xd4) },
{ "Gray84", RGB(0xd6, 0xd6, 0xd6) },
{ "Gray85", RGB(0xd9, 0xd9, 0xd9) },
{ "Gray86", RGB(0xdb, 0xdb, 0xdb) },
{ "Gray87", RGB(0xde, 0xde, 0xde) },
{ "Gray88", RGB(0xe0, 0xe0, 0xe0) },
{ "Gray89", RGB(0xe3, 0xe3, 0xe3) },
{ "Gray9", RGB(0x17, 0x17, 0x17) },
{ "Gray90", RGB(0xe5, 0xe5, 0xe5) },
{ "Gray91", RGB(0xe8, 0xe8, 0xe8) },
{ "Gray92", RGB(0xeb, 0xeb, 0xeb) },
{ "Gray93", RGB(0xed, 0xed, 0xed) },
{ "Gray94", RGB(0xf0, 0xf0, 0xf0) },
{ "Gray95", RGB(0xf2, 0xf2, 0xf2) },
{ "Gray96", RGB(0xf5, 0xf5, 0xf5) },
{ "Gray97", RGB(0xf7, 0xf7, 0xf7) },
{ "Gray98", RGB(0xfa, 0xfa, 0xfa) },
{ "Gray99", RGB(0xfc, 0xfc, 0xfc) },
{ "Green", RGB(0x00, 0x80, 0x00) },
{ "Green1", RGB(0x0, 0xff, 0x0) },
{ "Green2", RGB(0x0, 0xee, 0x0) },
{ "Green3", RGB(0x0, 0xcd, 0x0) },
{ "Green4", RGB(0x0, 0x8b, 0x0) },
{ "GreenYellow", RGB(0xad, 0xff, 0x2f) },
{ "Grey", RGB(0x80, 0x80, 0x80) },
{ "Grey0", RGB(0x0, 0x0, 0x0) },
{ "Grey1", RGB(0x3, 0x3, 0x3) },
{ "Grey10", RGB(0x1a, 0x1a, 0x1a) },
{ "Grey100", RGB(0xff, 0xff, 0xff) },
{ "Grey11", RGB(0x1c, 0x1c, 0x1c) },
{ "Grey12", RGB(0x1f, 0x1f, 0x1f) },
{ "Grey13", RGB(0x21, 0x21, 0x21) },
{ "Grey14", RGB(0x24, 0x24, 0x24) },
{ "Grey15", RGB(0x26, 0x26, 0x26) },
{ "Grey16", RGB(0x29, 0x29, 0x29) },
{ "Grey17", RGB(0x2b, 0x2b, 0x2b) },
{ "Grey18", RGB(0x2e, 0x2e, 0x2e) },
{ "Grey19", RGB(0x30, 0x30, 0x30) },
{ "Grey2", RGB(0x5, 0x5, 0x5) },
{ "Grey20", RGB(0x33, 0x33, 0x33) },
{ "Grey21", RGB(0x36, 0x36, 0x36) },
{ "Grey22", RGB(0x38, 0x38, 0x38) },
{ "Grey23", RGB(0x3b, 0x3b, 0x3b) },
{ "Grey24", RGB(0x3d, 0x3d, 0x3d) },
{ "Grey25", RGB(0x40, 0x40, 0x40) },
{ "Grey26", RGB(0x42, 0x42, 0x42) },
{ "Grey27", RGB(0x45, 0x45, 0x45) },
{ "Grey28", RGB(0x47, 0x47, 0x47) },
{ "Grey29", RGB(0x4a, 0x4a, 0x4a) },
{ "Grey3", RGB(0x8, 0x8, 0x8) },
{ "Grey30", RGB(0x4d, 0x4d, 0x4d) },
{ "Grey31", RGB(0x4f, 0x4f, 0x4f) },
{ "Grey32", RGB(0x52, 0x52, 0x52) },
{ "Grey33", RGB(0x54, 0x54, 0x54) },
{ "Grey34", RGB(0x57, 0x57, 0x57) },
{ "Grey35", RGB(0x59, 0x59, 0x59) },
{ "Grey36", RGB(0x5c, 0x5c, 0x5c) },
{ "Grey37", RGB(0x5e, 0x5e, 0x5e) },
{ "Grey38", RGB(0x61, 0x61, 0x61) },
{ "Grey39", RGB(0x63, 0x63, 0x63) },
{ "Grey4", RGB(0xa, 0xa, 0xa) },
{ "Grey40", RGB(0x66, 0x66, 0x66) },
{ "Grey41", RGB(0x69, 0x69, 0x69) },
{ "Grey42", RGB(0x6b, 0x6b, 0x6b) },
{ "Grey43", RGB(0x6e, 0x6e, 0x6e) },
{ "Grey44", RGB(0x70, 0x70, 0x70) },
{ "Grey45", RGB(0x73, 0x73, 0x73) },
{ "Grey46", RGB(0x75, 0x75, 0x75) },
{ "Grey47", RGB(0x78, 0x78, 0x78) },
{ "Grey48", RGB(0x7a, 0x7a, 0x7a) },
{ "Grey49", RGB(0x7d, 0x7d, 0x7d) },
{ "Grey5", RGB(0xd, 0xd, 0xd) },
{ "Grey50", RGB(0x7f, 0x7f, 0x7f) },
{ "Grey51", RGB(0x82, 0x82, 0x82) },
{ "Grey52", RGB(0x85, 0x85, 0x85) },
{ "Grey53", RGB(0x87, 0x87, 0x87) },
{ "Grey54", RGB(0x8a, 0x8a, 0x8a) },
{ "Grey55", RGB(0x8c, 0x8c, 0x8c) },
{ "Grey56", RGB(0x8f, 0x8f, 0x8f) },
{ "Grey57", RGB(0x91, 0x91, 0x91) },
{ "Grey58", RGB(0x94, 0x94, 0x94) },
{ "Grey59", RGB(0x96, 0x96, 0x96) },
{ "Grey6", RGB(0xf, 0xf, 0xf) },
{ "Grey60", RGB(0x99, 0x99, 0x99) },
{ "Grey61", RGB(0x9c, 0x9c, 0x9c) },
{ "Grey62", RGB(0x9e, 0x9e, 0x9e) },
{ "Grey63", RGB(0xa1, 0xa1, 0xa1) },
{ "Grey64", RGB(0xa3, 0xa3, 0xa3) },
{ "Grey65", RGB(0xa6, 0xa6, 0xa6) },
{ "Grey66", RGB(0xa8, 0xa8, 0xa8) },
{ "Grey67", RGB(0xab, 0xab, 0xab) },
{ "Grey68", RGB(0xad, 0xad, 0xad) },
{ "Grey69", RGB(0xb0, 0xb0, 0xb0) },
{ "Grey7", RGB(0x12, 0x12, 0x12) },
{ "Grey70", RGB(0xb3, 0xb3, 0xb3) },
{ "Grey71", RGB(0xb5, 0xb5, 0xb5) },
{ "Grey72", RGB(0xb8, 0xb8, 0xb8) },
{ "Grey73", RGB(0xba, 0xba, 0xba) },
{ "Grey74", RGB(0xbd, 0xbd, 0xbd) },
{ "Grey75", RGB(0xbf, 0xbf, 0xbf) },
{ "Grey76", RGB(0xc2, 0xc2, 0xc2) },
{ "Grey77", RGB(0xc4, 0xc4, 0xc4) },
{ "Grey78", RGB(0xc7, 0xc7, 0xc7) },
{ "Grey79", RGB(0xc9, 0xc9, 0xc9) },
{ "Grey8", RGB(0x14, 0x14, 0x14) },
{ "Grey80", RGB(0xcc, 0xcc, 0xcc) },
{ "Grey81", RGB(0xcf, 0xcf, 0xcf) },
{ "Grey82", RGB(0xd1, 0xd1, 0xd1) },
{ "Grey83", RGB(0xd4, 0xd4, 0xd4) },
{ "Grey84", RGB(0xd6, 0xd6, 0xd6) },
{ "Grey85", RGB(0xd9, 0xd9, 0xd9) },
{ "Grey86", RGB(0xdb, 0xdb, 0xdb) },
{ "Grey87", RGB(0xde, 0xde, 0xde) },
{ "Grey88", RGB(0xe0, 0xe0, 0xe0) },
{ "Grey89", RGB(0xe3, 0xe3, 0xe3) },
{ "Grey9", RGB(0x17, 0x17, 0x17) },
{ "Grey90", RGB(0xe5, 0xe5, 0xe5) },
{ "Grey91", RGB(0xe8, 0xe8, 0xe8) },
{ "Grey92", RGB(0xeb, 0xeb, 0xeb) },
{ "Grey93", RGB(0xed, 0xed, 0xed) },
{ "Grey94", RGB(0xf0, 0xf0, 0xf0) },
{ "Grey95", RGB(0xf2, 0xf2, 0xf2) },
{ "Grey96", RGB(0xf5, 0xf5, 0xf5) },
{ "Grey97", RGB(0xf7, 0xf7, 0xf7) },
{ "Grey98", RGB(0xfa, 0xfa, 0xfa) },
{ "Grey99", RGB(0xfc, 0xfc, 0xfc) },
{ "Honeydew", RGB(0xf0, 0xff, 0xf0) },
{ "Honeydew1", RGB(0xf0, 0xff, 0xf0) },
{ "Honeydew2", RGB(0xe0, 0xee, 0xe0) },
{ "Honeydew3", RGB(0xc1, 0xcd, 0xc1) },
{ "Honeydew4", RGB(0x83, 0x8b, 0x83) },
{ "HotPink", RGB(0xff, 0x69, 0xb4) },
{ "HotPink1", RGB(0xff, 0x6e, 0xb4) },
{ "HotPink2", RGB(0xee, 0x6a, 0xa7) },
{ "HotPink3", RGB(0xcd, 0x60, 0x90) },
{ "HotPink4", RGB(0x8b, 0x3a, 0x62) },
{ "IndianRed", RGB(0xcd, 0x5c, 0x5c) },
{ "IndianRed1", RGB(0xff, 0x6a, 0x6a) },
{ "IndianRed2", RGB(0xee, 0x63, 0x63) },
{ "IndianRed3", RGB(0xcd, 0x55, 0x55) },
{ "IndianRed4", RGB(0x8b, 0x3a, 0x3a) },
{ "Indigo", RGB(0x4b, 0x00, 0x82) },
{ "Ivory", RGB(0xff, 0xff, 0xf0) },
{ "Ivory1", RGB(0xff, 0xff, 0xf0) },
{ "Ivory2", RGB(0xee, 0xee, 0xe0) },
{ "Ivory3", RGB(0xcd, 0xcd, 0xc1) },
{ "Ivory4", RGB(0x8b, 0x8b, 0x83) },
{ "Khaki", RGB(0xf0, 0xe6, 0x8c) },
{ "Khaki1", RGB(0xff, 0xf6, 0x8f) },
{ "Khaki2", RGB(0xee, 0xe6, 0x85) },
{ "Khaki3", RGB(0xcd, 0xc6, 0x73) },
{ "Khaki4", RGB(0x8b, 0x86, 0x4e) },
{ "Lavender", RGB(0xe6, 0xe6, 0xfa) },
{ "LavenderBlush", RGB(0xff, 0xf0, 0xf5) },
{ "LavenderBlush1", RGB(0xff, 0xf0, 0xf5) },
{ "LavenderBlush2", RGB(0xee, 0xe0, 0xe5) },
{ "LavenderBlush3", RGB(0xcd, 0xc1, 0xc5) },
{ "LavenderBlush4", RGB(0x8b, 0x83, 0x86) },
{ "LawnGreen", RGB(0x7c, 0xfc, 0x00) },
{ "LemonChiffon", RGB(0xff, 0xfa, 0xcd) },
{ "LemonChiffon1", RGB(0xff, 0xfa, 0xcd) },
{ "LemonChiffon2", RGB(0xee, 0xe9, 0xbf) },
{ "LemonChiffon3", RGB(0xcd, 0xc9, 0xa5) },
{ "LemonChiffon4", RGB(0x8b, 0x89, 0x70) },
{ "LightBlue", RGB(0xad, 0xd8, 0xe6) },
{ "LightBlue1", RGB(0xbf, 0xef, 0xff) },
{ "LightBlue2", RGB(0xb2, 0xdf, 0xee) },
{ "LightBlue3", RGB(0x9a, 0xc0, 0xcd) },
{ "LightBlue4", RGB(0x68, 0x83, 0x8b) },
{ "LightCoral", RGB(0xf0, 0x80, 0x80) },
{ "LightCyan", RGB(0xe0, 0xff, 0xff) },
{ "LightCyan1", RGB(0xe0, 0xff, 0xff) },
{ "LightCyan2", RGB(0xd1, 0xee, 0xee) },
{ "LightCyan3", RGB(0xb4, 0xcd, 0xcd) },
{ "LightCyan4", RGB(0x7a, 0x8b, 0x8b) },
{ "LightGoldenrod", RGB(0xee, 0xdd, 0x82) },
{ "LightGoldenrod1", RGB(0xff, 0xec, 0x8b) },
{ "LightGoldenrod2", RGB(0xee, 0xdc, 0x82) },
{ "LightGoldenrod3", RGB(0xcd, 0xbe, 0x70) },
{ "LightGoldenrod4", RGB(0x8b, 0x81, 0x4c) },
{ "LightGoldenRodYellow", RGB(0xfa, 0xfa, 0xd2) },
{ "LightGray", RGB(0xd3, 0xd3, 0xd3) },
{ "LightGreen", RGB(0x90, 0xee, 0x90) },
{ "LightGrey", RGB(0xd3, 0xd3, 0xd3) },
{ "LightMagenta", RGB(0xff, 0xbb, 0xff) },
{ "LightPink", RGB(0xff, 0xb6, 0xc1) },
{ "LightPink1", RGB(0xff, 0xae, 0xb9) },
{ "LightPink2", RGB(0xee, 0xa2, 0xad) },
{ "LightPink3", RGB(0xcd, 0x8c, 0x95) },
{ "LightPink4", RGB(0x8b, 0x5f, 0x65) },
{ "LightRed", RGB(0xff, 0xbb, 0xbb) },
{ "LightSalmon", RGB(0xff, 0xa0, 0x7a) },
{ "LightSalmon1", RGB(0xff, 0xa0, 0x7a) },
{ "LightSalmon2", RGB(0xee, 0x95, 0x72) },
{ "LightSalmon3", RGB(0xcd, 0x81, 0x62) },
{ "LightSalmon4", RGB(0x8b, 0x57, 0x42) },
{ "LightSeaGreen", RGB(0x20, 0xb2, 0xaa) },
{ "LightSkyBlue", RGB(0x87, 0xce, 0xfa) },
{ "LightSkyBlue1", RGB(0xb0, 0xe2, 0xff) },
{ "LightSkyBlue2", RGB(0xa4, 0xd3, 0xee) },
{ "LightSkyBlue3", RGB(0x8d, 0xb6, 0xcd) },
{ "LightSkyBlue4", RGB(0x60, 0x7b, 0x8b) },
{ "LightSlateBlue", RGB(0x84, 0x70, 0xff) },
{ "LightSlateGray", RGB(0x77, 0x88, 0x99) },
{ "LightSlateGrey", RGB(0x77, 0x88, 0x99) },
{ "LightSteelBlue", RGB(0xb0, 0xc4, 0xde) },
{ "LightSteelBlue1", RGB(0xca, 0xe1, 0xff) },
{ "LightSteelBlue2", RGB(0xbc, 0xd2, 0xee) },
{ "LightSteelBlue3", RGB(0xa2, 0xb5, 0xcd) },
{ "LightSteelBlue4", RGB(0x6e, 0x7b, 0x8b) },
{ "LightYellow", RGB(0xff, 0xff, 0xe0) },
{ "LightYellow1", RGB(0xff, 0xff, 0xe0) },
{ "LightYellow2", RGB(0xee, 0xee, 0xd1) },
{ "LightYellow3", RGB(0xcd, 0xcd, 0xb4) },
{ "LightYellow4", RGB(0x8b, 0x8b, 0x7a) },
{ "Lime", RGB(0x00, 0xff, 0x00) },
{ "LimeGreen", RGB(0x32, 0xcd, 0x32) },
{ "Linen", RGB(0xfa, 0xf0, 0xe6) },
{ "Magenta", RGB(0xff, 0x00, 0xff) },
{ "Magenta1", RGB(0xff, 0x0, 0xff) },
{ "Magenta2", RGB(0xee, 0x0, 0xee) },
{ "Magenta3", RGB(0xcd, 0x0, 0xcd) },
{ "Magenta4", RGB(0x8b, 0x0, 0x8b) },
{ "Maroon", RGB(0x80, 0x00, 0x00) },
{ "Maroon1", RGB(0xff, 0x34, 0xb3) },
{ "Maroon2", RGB(0xee, 0x30, 0xa7) },
{ "Maroon3", RGB(0xcd, 0x29, 0x90) },
{ "Maroon4", RGB(0x8b, 0x1c, 0x62) },
{ "MediumAquamarine", RGB(0x66, 0xcd, 0xaa) },
{ "MediumBlue", RGB(0x00, 0x00, 0xcd) },
{ "MediumOrchid", RGB(0xba, 0x55, 0xd3) },
{ "MediumOrchid1", RGB(0xe0, 0x66, 0xff) },
{ "MediumOrchid2", RGB(0xd1, 0x5f, 0xee) },
{ "MediumOrchid3", RGB(0xb4, 0x52, 0xcd) },
{ "MediumOrchid4", RGB(0x7a, 0x37, 0x8b) },
{ "MediumPurple", RGB(0x93, 0x70, 0xdb) },
{ "MediumPurple1", RGB(0xab, 0x82, 0xff) },
{ "MediumPurple2", RGB(0x9f, 0x79, 0xee) },
{ "MediumPurple3", RGB(0x89, 0x68, 0xcd) },
{ "MediumPurple4", RGB(0x5d, 0x47, 0x8b) },
{ "MediumSeaGreen", RGB(0x3c, 0xb3, 0x71) },
{ "MediumSlateBlue", RGB(0x7b, 0x68, 0xee) },
{ "MediumSpringGreen", RGB(0x00, 0xfa, 0x9a) },
{ "MediumTurquoise", RGB(0x48, 0xd1, 0xcc) },
{ "MediumVioletRed", RGB(0xc7, 0x15, 0x85) },
{ "MidnightBlue", RGB(0x19, 0x19, 0x70) },
{ "MintCream", RGB(0xf5, 0xff, 0xfa) },
{ "MistyRose", RGB(0xff, 0xe4, 0xe1) },
{ "MistyRose1", RGB(0xff, 0xe4, 0xe1) },
{ "MistyRose2", RGB(0xee, 0xd5, 0xd2) },
{ "MistyRose3", RGB(0xcd, 0xb7, 0xb5) },
{ "MistyRose4", RGB(0x8b, 0x7d, 0x7b) },
{ "Moccasin", RGB(0xff, 0xe4, 0xb5) },
{ "NavajoWhite", RGB(0xff, 0xde, 0xad) },
{ "NavajoWhite1", RGB(0xff, 0xde, 0xad) },
{ "NavajoWhite2", RGB(0xee, 0xcf, 0xa1) },
{ "NavajoWhite3", RGB(0xcd, 0xb3, 0x8b) },
{ "NavajoWhite4", RGB(0x8b, 0x79, 0x5e) },
{ "Navy", RGB(0x00, 0x00, 0x80) },
{ "NavyBlue", RGB(0x0, 0x0, 0x80) },
{ "OldLace", RGB(0xfd, 0xf5, 0xe6) },
{ "Olive", RGB(0x80, 0x80, 0x00) },
{ "OliveDrab", RGB(0x6b, 0x8e, 0x23) },
{ "OliveDrab1", RGB(0xc0, 0xff, 0x3e) },
{ "OliveDrab2", RGB(0xb3, 0xee, 0x3a) },
{ "OliveDrab3", RGB(0x9a, 0xcd, 0x32) },
{ "OliveDrab4", RGB(0x69, 0x8b, 0x22) },
{ "Orange", RGB(0xff, 0xa5, 0x00) },
{ "Orange1", RGB(0xff, 0xa5, 0x0) },
{ "Orange2", RGB(0xee, 0x9a, 0x0) },
{ "Orange3", RGB(0xcd, 0x85, 0x0) },
{ "Orange4", RGB(0x8b, 0x5a, 0x0) },
{ "OrangeRed", RGB(0xff, 0x45, 0x00) },
{ "OrangeRed1", RGB(0xff, 0x45, 0x0) },
{ "OrangeRed2", RGB(0xee, 0x40, 0x0) },
{ "OrangeRed3", RGB(0xcd, 0x37, 0x0) },
{ "OrangeRed4", RGB(0x8b, 0x25, 0x0) },
{ "Orchid", RGB(0xda, 0x70, 0xd6) },
{ "Orchid1", RGB(0xff, 0x83, 0xfa) },
{ "Orchid2", RGB(0xee, 0x7a, 0xe9) },
{ "Orchid3", RGB(0xcd, 0x69, 0xc9) },
{ "Orchid4", RGB(0x8b, 0x47, 0x89) },
{ "PaleGoldenRod", RGB(0xee, 0xe8, 0xaa) },
{ "PaleGreen", RGB(0x98, 0xfb, 0x98) },
{ "PaleGreen1", RGB(0x9a, 0xff, 0x9a) },
{ "PaleGreen2", RGB(0x90, 0xee, 0x90) },
{ "PaleGreen3", RGB(0x7c, 0xcd, 0x7c) },
{ "PaleGreen4", RGB(0x54, 0x8b, 0x54) },
{ "PaleTurquoise", RGB(0xaf, 0xee, 0xee) },
{ "PaleTurquoise1", RGB(0xbb, 0xff, 0xff) },
{ "PaleTurquoise2", RGB(0xae, 0xee, 0xee) },
{ "PaleTurquoise3", RGB(0x96, 0xcd, 0xcd) },
{ "PaleTurquoise4", RGB(0x66, 0x8b, 0x8b) },
{ "PaleVioletRed", RGB(0xdb, 0x70, 0x93) },
{ "PaleVioletRed1", RGB(0xff, 0x82, 0xab) },
{ "PaleVioletRed2", RGB(0xee, 0x79, 0x9f) },
{ "PaleVioletRed3", RGB(0xcd, 0x68, 0x89) },
{ "PaleVioletRed4", RGB(0x8b, 0x47, 0x5d) },
{ "PapayaWhip", RGB(0xff, 0xef, 0xd5) },
{ "PeachPuff", RGB(0xff, 0xda, 0xb9) },
{ "PeachPuff1", RGB(0xff, 0xda, 0xb9) },
{ "PeachPuff2", RGB(0xee, 0xcb, 0xad) },
{ "PeachPuff3", RGB(0xcd, 0xaf, 0x95) },
{ "PeachPuff4", RGB(0x8b, 0x77, 0x65) },
{ "Peru", RGB(0xcd, 0x85, 0x3f) },
{ "Pink", RGB(0xff, 0xc0, 0xcb) },
{ "Pink1", RGB(0xff, 0xb5, 0xc5) },
{ "Pink2", RGB(0xee, 0xa9, 0xb8) },
{ "Pink3", RGB(0xcd, 0x91, 0x9e) },
{ "Pink4", RGB(0x8b, 0x63, 0x6c) },
{ "Plum", RGB(0xdd, 0xa0, 0xdd) },
{ "Plum1", RGB(0xff, 0xbb, 0xff) },
{ "Plum2", RGB(0xee, 0xae, 0xee) },
{ "Plum3", RGB(0xcd, 0x96, 0xcd) },
{ "Plum4", RGB(0x8b, 0x66, 0x8b) },
{ "PowderBlue", RGB(0xb0, 0xe0, 0xe6) },
{ "Purple", RGB(0x80, 0x00, 0x80) },
{ "Purple1", RGB(0x9b, 0x30, 0xff) },
{ "Purple2", RGB(0x91, 0x2c, 0xee) },
{ "Purple3", RGB(0x7d, 0x26, 0xcd) },
{ "Purple4", RGB(0x55, 0x1a, 0x8b) },
{ "RebeccaPurple", RGB(0x66, 0x33, 0x99) },
{ "Red", RGB(0xff, 0x00, 0x00) },
{ "Red1", RGB(0xff, 0x0, 0x0) },
{ "Red2", RGB(0xee, 0x0, 0x0) },
{ "Red3", RGB(0xcd, 0x0, 0x0) },
{ "Red4", RGB(0x8b, 0x0, 0x0) },
{ "RosyBrown", RGB(0xbc, 0x8f, 0x8f) },
{ "RosyBrown1", RGB(0xff, 0xc1, 0xc1) },
{ "RosyBrown2", RGB(0xee, 0xb4, 0xb4) },
{ "RosyBrown3", RGB(0xcd, 0x9b, 0x9b) },
{ "RosyBrown4", RGB(0x8b, 0x69, 0x69) },
{ "RoyalBlue", RGB(0x41, 0x69, 0xe1) },
{ "RoyalBlue1", RGB(0x48, 0x76, 0xff) },
{ "RoyalBlue2", RGB(0x43, 0x6e, 0xee) },
{ "RoyalBlue3", RGB(0x3a, 0x5f, 0xcd) },
{ "RoyalBlue4", RGB(0x27, 0x40, 0x8b) },
{ "SaddleBrown", RGB(0x8b, 0x45, 0x13) },
{ "Salmon", RGB(0xfa, 0x80, 0x72) },
{ "Salmon1", RGB(0xff, 0x8c, 0x69) },
{ "Salmon2", RGB(0xee, 0x82, 0x62) },
{ "Salmon3", RGB(0xcd, 0x70, 0x54) },
{ "Salmon4", RGB(0x8b, 0x4c, 0x39) },
{ "SandyBrown", RGB(0xf4, 0xa4, 0x60) },
{ "SeaGreen", RGB(0x2e, 0x8b, 0x57) },
{ "SeaGreen1", RGB(0x54, 0xff, 0x9f) },
{ "SeaGreen2", RGB(0x4e, 0xee, 0x94) },
{ "SeaGreen3", RGB(0x43, 0xcd, 0x80) },
{ "SeaGreen4", RGB(0x2e, 0x8b, 0x57) },
{ "SeaShell", RGB(0xff, 0xf5, 0xee) },
{ "Seashell1", RGB(0xff, 0xf5, 0xee) },
{ "Seashell2", RGB(0xee, 0xe5, 0xde) },
{ "Seashell3", RGB(0xcd, 0xc5, 0xbf) },
{ "Seashell4", RGB(0x8b, 0x86, 0x82) },
{ "Sienna", RGB(0xa0, 0x52, 0x2d) },
{ "Sienna1", RGB(0xff, 0x82, 0x47) },
{ "Sienna2", RGB(0xee, 0x79, 0x42) },
{ "Sienna3", RGB(0xcd, 0x68, 0x39) },
{ "Sienna4", RGB(0x8b, 0x47, 0x26) },
{ "Silver", RGB(0xc0, 0xc0, 0xc0) },
{ "SkyBlue", RGB(0x87, 0xce, 0xeb) },
{ "SkyBlue1", RGB(0x87, 0xce, 0xff) },
{ "SkyBlue2", RGB(0x7e, 0xc0, 0xee) },
{ "SkyBlue3", RGB(0x6c, 0xa6, 0xcd) },
{ "SkyBlue4", RGB(0x4a, 0x70, 0x8b) },
{ "SlateBlue", RGB(0x6a, 0x5a, 0xcd) },
{ "SlateBlue1", RGB(0x83, 0x6f, 0xff) },
{ "SlateBlue2", RGB(0x7a, 0x67, 0xee) },
{ "SlateBlue3", RGB(0x69, 0x59, 0xcd) },
{ "SlateBlue4", RGB(0x47, 0x3c, 0x8b) },
{ "SlateGray", RGB(0x70, 0x80, 0x90) },
{ "SlateGray1", RGB(0xc6, 0xe2, 0xff) },
{ "SlateGray2", RGB(0xb9, 0xd3, 0xee) },
{ "SlateGray3", RGB(0x9f, 0xb6, 0xcd) },
{ "SlateGray4", RGB(0x6c, 0x7b, 0x8b) },
{ "SlateGrey", RGB(0x70, 0x80, 0x90) },
{ "Snow", RGB(0xff, 0xfa, 0xfa) },
{ "Snow1", RGB(0xff, 0xfa, 0xfa) },
{ "Snow2", RGB(0xee, 0xe9, 0xe9) },
{ "Snow3", RGB(0xcd, 0xc9, 0xc9) },
{ "Snow4", RGB(0x8b, 0x89, 0x89) },
{ "SpringGreen", RGB(0x00, 0xff, 0x7f) },
{ "SpringGreen1", RGB(0x0, 0xff, 0x7f) },
{ "SpringGreen2", RGB(0x0, 0xee, 0x76) },
{ "SpringGreen3", RGB(0x0, 0xcd, 0x66) },
{ "SpringGreen4", RGB(0x0, 0x8b, 0x45) },
{ "SteelBlue", RGB(0x46, 0x82, 0xb4) },
{ "SteelBlue1", RGB(0x63, 0xb8, 0xff) },
{ "SteelBlue2", RGB(0x5c, 0xac, 0xee) },
{ "SteelBlue3", RGB(0x4f, 0x94, 0xcd) },
{ "SteelBlue4", RGB(0x36, 0x64, 0x8b) },
{ "Tan", RGB(0xd2, 0xb4, 0x8c) },
{ "Tan1", RGB(0xff, 0xa5, 0x4f) },
{ "Tan2", RGB(0xee, 0x9a, 0x49) },
{ "Tan3", RGB(0xcd, 0x85, 0x3f) },
{ "Tan4", RGB(0x8b, 0x5a, 0x2b) },
{ "Teal", RGB(0x00, 0x80, 0x80) },
{ "Thistle", RGB(0xd8, 0xbf, 0xd8) },
{ "Thistle1", RGB(0xff, 0xe1, 0xff) },
{ "Thistle2", RGB(0xee, 0xd2, 0xee) },
{ "Thistle3", RGB(0xcd, 0xb5, 0xcd) },
{ "Thistle4", RGB(0x8b, 0x7b, 0x8b) },
{ "Tomato", RGB(0xff, 0x63, 0x47) },
{ "Tomato1", RGB(0xff, 0x63, 0x47) },
{ "Tomato2", RGB(0xee, 0x5c, 0x42) },
{ "Tomato3", RGB(0xcd, 0x4f, 0x39) },
{ "Tomato4", RGB(0x8b, 0x36, 0x26) },
{ "Turquoise", RGB(0x40, 0xe0, 0xd0) },
{ "Turquoise1", RGB(0x0, 0xf5, 0xff) },
{ "Turquoise2", RGB(0x0, 0xe5, 0xee) },
{ "Turquoise3", RGB(0x0, 0xc5, 0xcd) },
{ "Turquoise4", RGB(0x0, 0x86, 0x8b) },
{ "Violet", RGB(0xee, 0x82, 0xee) },
{ "VioletRed", RGB(0xd0, 0x20, 0x90) },
{ "VioletRed1", RGB(0xff, 0x3e, 0x96) },
{ "VioletRed2", RGB(0xee, 0x3a, 0x8c) },
{ "VioletRed3", RGB(0xcd, 0x32, 0x78) },
{ "VioletRed4", RGB(0x8b, 0x22, 0x52) },
{ "WebGray", RGB(0x80, 0x80, 0x80) },
{ "WebGreen", RGB(0x0, 0x80, 0x0) },
{ "WebGrey", RGB(0x80, 0x80, 0x80) },
{ "WebMaroon", RGB(0x80, 0x0, 0x0) },
{ "WebPurple", RGB(0x80, 0x0, 0x80) },
{ "Wheat", RGB(0xf5, 0xde, 0xb3) },
{ "Wheat1", RGB(0xff, 0xe7, 0xba) },
{ "Wheat2", RGB(0xee, 0xd8, 0xae) },
{ "Wheat3", RGB(0xcd, 0xba, 0x96) },
{ "Wheat4", RGB(0x8b, 0x7e, 0x66) },
{ "White", RGB(0xff, 0xff, 0xff) },
{ "WhiteSmoke", RGB(0xf5, 0xf5, 0xf5) },
{ "X11Gray", RGB(0xbe, 0xbe, 0xbe) },
{ "X11Green", RGB(0x0, 0xff, 0x0) },
{ "X11Grey", RGB(0xbe, 0xbe, 0xbe) },
{ "X11Maroon", RGB(0xb0, 0x30, 0x60) },
{ "X11Purple", RGB(0xa0, 0x20, 0xf0) },
{ "Yellow", RGB(0xff, 0xff, 0x00) },
{ "Yellow1", RGB(0xff, 0xff, 0x0) },
{ "Yellow2", RGB(0xee, 0xee, 0x0) },
{ "Yellow3", RGB(0xcd, 0xcd, 0x0) },
{ "Yellow4", RGB(0x8b, 0x8b, 0x0) },
{ "YellowGreen", RGB(0x9a, 0xcd, 0x32) },
{ NULL, 0 },
};
/// Translate to RgbValue if \p name is an hex value (e.g. #XXXXXX),
/// else look into color_name_table to translate a color name to its
/// hex value
///
/// @param[in] name string value to convert to RGB
/// return the hex value or -1 if could not find a correct value
RgbValue name_to_color(const uint8_t *name)
{
if (name[0] == '#' && isxdigit(name[1]) && isxdigit(name[2])
&& isxdigit(name[3]) && isxdigit(name[4]) && isxdigit(name[5])
&& isxdigit(name[6]) && name[7] == NUL) {
// rgb hex string
return strtol((char *)(name + 1), NULL, 16);
} else if (!STRICMP(name, "bg") || !STRICMP(name, "background")) {
return normal_bg;
} else if (!STRICMP(name, "fg") || !STRICMP(name, "foreground")) {
return normal_fg;
}
for (int i = 0; color_name_table[i].name != NULL; i++) {
if (!STRICMP(name, color_name_table[i].name)) {
return color_name_table[i].color;
}
}
return -1;
}
/// Retrieves attribute description from its id
///
/// @param attr_id attribute id
Dictionary hl_get_attr_by_id(Integer attr_id, Boolean rgb, Error *err)
{
HlAttrs attrs = HLATTRS_INIT;
Dictionary dic = ARRAY_DICT_INIT;
if (attr_id == 0) {
goto end;
}
attrentry_T *aep = syn_cterm_attr2entry((int)attr_id);
if (!aep) {
api_set_error(err, kErrorTypeException,
"Invalid attribute id %d", attr_id);
return dic;
}
attrs = attrentry2hlattrs(aep, rgb);
end:
return hlattrs2dict(attrs);
}
/**************************************
* End of Highlighting stuff *
**************************************/