mirror of
https://github.com/neovim/neovim.git
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b76c358f3d
cproto (http://invisible-island.net/cproto/) was used to do the bulk of the work in batch; even the most recent version had some issues with typedef'd parameters; a quick "patch" was to modify `lex.l` to explicitly include all vim typedefs as known types. One example from `vim.h` is typedef unsigned char char_u; which was added in `lex.l` as <INITIAL>char_u { save_text_offset(); return T_CHAR; } Even with these changes there were some problems: * Two files (`mbyte.c` and `os_unix.c`) were not cleanly converted. * Any function with the `UNUSED` macro in its parameter list was not converted. Rather than spend more time fixing the automated approach, the two files `mbyte.c` and `os_unix.c` were converted by hand. The `UNUSED` macros were compiler specific, and the alternative, generic version would require a different syntax, so in order to simplify the conversion all uses of `UNUSED` were stripped, and then the sources were run back through cproto. It is planned to reconsider each use of `UNUSED` manually using a new macro definition.
1568 lines
42 KiB
C
1568 lines
42 KiB
C
/* vi:set ts=8 sts=4 sw=4:
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*
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* VIM - Vi IMproved by Bram Moolenaar
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*
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* Do ":help uganda" in Vim to read copying and usage conditions.
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* Do ":help credits" in Vim to see a list of people who contributed.
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* See README.txt for an overview of the Vim source code.
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*/
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#include "vim.h"
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static int win_chartabsize __ARGS((win_T *wp, char_u *p, colnr_T col));
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# if defined(HAVE_WCHAR_H)
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# include <wchar.h> /* for towupper() and towlower() */
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# endif
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static int win_nolbr_chartabsize __ARGS((win_T *wp, char_u *s, colnr_T col,
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int *headp));
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static unsigned nr2hex __ARGS((unsigned c));
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static int chartab_initialized = FALSE;
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/* b_chartab[] is an array of 32 bytes, each bit representing one of the
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* characters 0-255. */
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#define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> \
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3] |= (1 << ((c) & 0x7))
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#define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> \
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3] &= ~(1 << ((c) & 0x7))
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#define GET_CHARTAB(buf, \
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c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7)))
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/*
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* Fill chartab[]. Also fills curbuf->b_chartab[] with flags for keyword
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* characters for current buffer.
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*
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* Depends on the option settings 'iskeyword', 'isident', 'isfname',
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* 'isprint' and 'encoding'.
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*
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* The index in chartab[] depends on 'encoding':
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* - For non-multi-byte index with the byte (same as the character).
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* - For DBCS index with the first byte.
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* - For UTF-8 index with the character (when first byte is up to 0x80 it is
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* the same as the character, if the first byte is 0x80 and above it depends
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* on further bytes).
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*
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* The contents of chartab[]:
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* - The lower two bits, masked by CT_CELL_MASK, give the number of display
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* cells the character occupies (1 or 2). Not valid for UTF-8 above 0x80.
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* - CT_PRINT_CHAR bit is set when the character is printable (no need to
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* translate the character before displaying it). Note that only DBCS
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* characters can have 2 display cells and still be printable.
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* - CT_FNAME_CHAR bit is set when the character can be in a file name.
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* - CT_ID_CHAR bit is set when the character can be in an identifier.
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*
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* Return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has an
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* error, OK otherwise.
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*/
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int init_chartab(void) {
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return buf_init_chartab(curbuf, TRUE);
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}
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int
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buf_init_chartab (
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buf_T *buf,
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int global /* FALSE: only set buf->b_chartab[] */
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)
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{
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int c;
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int c2;
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char_u *p;
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int i;
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int tilde;
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int do_isalpha;
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if (global) {
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/*
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* Set the default size for printable characters:
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* From <Space> to '~' is 1 (printable), others are 2 (not printable).
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* This also inits all 'isident' and 'isfname' flags to FALSE.
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*
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* EBCDIC: all chars below ' ' are not printable, all others are
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* printable.
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*/
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c = 0;
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while (c < ' ')
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chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2;
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while (c <= '~')
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chartab[c++] = 1 + CT_PRINT_CHAR;
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if (p_altkeymap) {
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while (c < YE)
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chartab[c++] = 1 + CT_PRINT_CHAR;
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}
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while (c < 256) {
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/* UTF-8: bytes 0xa0 - 0xff are printable (latin1) */
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if (enc_utf8 && c >= 0xa0)
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chartab[c++] = CT_PRINT_CHAR + 1;
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/* euc-jp characters starting with 0x8e are single width */
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else if (enc_dbcs == DBCS_JPNU && c == 0x8e)
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chartab[c++] = CT_PRINT_CHAR + 1;
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/* other double-byte chars can be printable AND double-width */
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else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2)
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chartab[c++] = CT_PRINT_CHAR + 2;
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else
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/* the rest is unprintable by default */
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chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2;
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}
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/* Assume that every multi-byte char is a filename character. */
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for (c = 1; c < 256; ++c)
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if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1)
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|| (enc_dbcs == DBCS_JPNU && c == 0x8e)
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|| (enc_utf8 && c >= 0xa0))
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chartab[c] |= CT_FNAME_CHAR;
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}
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/*
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* Init word char flags all to FALSE
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*/
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vim_memset(buf->b_chartab, 0, (size_t)32);
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if (enc_dbcs != 0)
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for (c = 0; c < 256; ++c) {
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/* double-byte characters are probably word characters */
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if (MB_BYTE2LEN(c) == 2)
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SET_CHARTAB(buf, c);
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}
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/*
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* In lisp mode the '-' character is included in keywords.
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*/
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if (buf->b_p_lisp)
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SET_CHARTAB(buf, '-');
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/* Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint'
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* options Each option is a list of characters, character numbers or
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* ranges, separated by commas, e.g.: "200-210,x,#-178,-"
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*/
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for (i = global ? 0 : 3; i <= 3; ++i) {
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if (i == 0)
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p = p_isi; /* first round: 'isident' */
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else if (i == 1)
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p = p_isp; /* second round: 'isprint' */
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else if (i == 2)
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p = p_isf; /* third round: 'isfname' */
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else /* i == 3 */
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p = buf->b_p_isk; /* fourth round: 'iskeyword' */
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while (*p) {
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tilde = FALSE;
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do_isalpha = FALSE;
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if (*p == '^' && p[1] != NUL) {
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tilde = TRUE;
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++p;
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}
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if (VIM_ISDIGIT(*p))
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c = getdigits(&p);
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else if (has_mbyte)
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c = mb_ptr2char_adv(&p);
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else
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c = *p++;
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c2 = -1;
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if (*p == '-' && p[1] != NUL) {
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++p;
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if (VIM_ISDIGIT(*p))
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c2 = getdigits(&p);
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else if (has_mbyte)
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c2 = mb_ptr2char_adv(&p);
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else
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c2 = *p++;
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}
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if (c <= 0 || c >= 256 || (c2 < c && c2 != -1) || c2 >= 256
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|| !(*p == NUL || *p == ','))
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return FAIL;
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if (c2 == -1) { /* not a range */
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/*
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* A single '@' (not "@-@"):
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* Decide on letters being ID/printable/keyword chars with
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* standard function isalpha(). This takes care of locale for
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* single-byte characters).
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*/
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if (c == '@') {
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do_isalpha = TRUE;
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c = 1;
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c2 = 255;
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} else
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c2 = c;
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}
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while (c <= c2) {
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/* Use the MB_ functions here, because isalpha() doesn't
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* work properly when 'encoding' is "latin1" and the locale is
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* "C". */
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if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c)
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|| (p_altkeymap && (F_isalpha(c) || F_isdigit(c)))
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) {
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if (i == 0) { /* (re)set ID flag */
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if (tilde)
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chartab[c] &= ~CT_ID_CHAR;
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else
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chartab[c] |= CT_ID_CHAR;
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} else if (i == 1) { /* (re)set printable */
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if ((c < ' '
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|| c > '~'
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|| (p_altkeymap
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&& (F_isalpha(c) || F_isdigit(c)))
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)
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/* For double-byte we keep the cell width, so
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* that we can detect it from the first byte. */
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&& !(enc_dbcs && MB_BYTE2LEN(c) == 2)
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) {
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if (tilde) {
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chartab[c] = (chartab[c] & ~CT_CELL_MASK)
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+ ((dy_flags & DY_UHEX) ? 4 : 2);
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chartab[c] &= ~CT_PRINT_CHAR;
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} else {
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chartab[c] = (chartab[c] & ~CT_CELL_MASK) + 1;
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chartab[c] |= CT_PRINT_CHAR;
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}
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}
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} else if (i == 2) { /* (re)set fname flag */
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if (tilde)
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chartab[c] &= ~CT_FNAME_CHAR;
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else
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chartab[c] |= CT_FNAME_CHAR;
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} else { /* i == 3 */ /* (re)set keyword flag */
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if (tilde)
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RESET_CHARTAB(buf, c);
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else
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SET_CHARTAB(buf, c);
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}
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}
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++c;
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}
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c = *p;
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p = skip_to_option_part(p);
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if (c == ',' && *p == NUL)
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/* Trailing comma is not allowed. */
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return FAIL;
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}
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}
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chartab_initialized = TRUE;
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return OK;
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}
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/*
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* Translate any special characters in buf[bufsize] in-place.
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* The result is a string with only printable characters, but if there is not
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* enough room, not all characters will be translated.
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*/
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void trans_characters(char_u *buf, int bufsize)
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{
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int len; /* length of string needing translation */
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int room; /* room in buffer after string */
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char_u *trs; /* translated character */
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int trs_len; /* length of trs[] */
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len = (int)STRLEN(buf);
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room = bufsize - len;
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while (*buf != 0) {
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/* Assume a multi-byte character doesn't need translation. */
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if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1)
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len -= trs_len;
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else {
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trs = transchar_byte(*buf);
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trs_len = (int)STRLEN(trs);
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if (trs_len > 1) {
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room -= trs_len - 1;
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if (room <= 0)
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return;
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mch_memmove(buf + trs_len, buf + 1, (size_t)len);
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}
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mch_memmove(buf, trs, (size_t)trs_len);
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--len;
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}
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buf += trs_len;
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}
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}
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#if defined(FEAT_EVAL) || defined(FEAT_TITLE) || defined(FEAT_INS_EXPAND) \
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|| defined(PROTO)
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/*
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* Translate a string into allocated memory, replacing special chars with
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* printable chars. Returns NULL when out of memory.
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*/
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char_u *transstr(char_u *s)
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{
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char_u *res;
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char_u *p;
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int l, len, c;
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char_u hexbuf[11];
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if (has_mbyte) {
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/* Compute the length of the result, taking account of unprintable
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* multi-byte characters. */
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len = 0;
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p = s;
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while (*p != NUL) {
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if ((l = (*mb_ptr2len)(p)) > 1) {
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c = (*mb_ptr2char)(p);
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p += l;
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if (vim_isprintc(c))
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len += l;
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else {
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transchar_hex(hexbuf, c);
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len += (int)STRLEN(hexbuf);
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}
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} else {
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l = byte2cells(*p++);
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if (l > 0)
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len += l;
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else
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len += 4; /* illegal byte sequence */
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}
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}
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res = alloc((unsigned)(len + 1));
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} else
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res = alloc((unsigned)(vim_strsize(s) + 1));
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if (res != NULL) {
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*res = NUL;
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p = s;
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while (*p != NUL) {
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if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) {
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c = (*mb_ptr2char)(p);
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if (vim_isprintc(c))
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STRNCAT(res, p, l); /* append printable multi-byte char */
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else
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transchar_hex(res + STRLEN(res), c);
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p += l;
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} else
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STRCAT(res, transchar_byte(*p++));
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}
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}
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return res;
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}
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#endif
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/*
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* Convert the string "str[orglen]" to do ignore-case comparing. Uses the
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* current locale.
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* When "buf" is NULL returns an allocated string (NULL for out-of-memory).
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* Otherwise puts the result in "buf[buflen]".
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*/
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char_u *str_foldcase(char_u *str, int orglen, char_u *buf, int buflen)
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{
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garray_T ga;
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int i;
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int len = orglen;
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#define GA_CHAR(i) ((char_u *)ga.ga_data)[i]
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#define GA_PTR(i) ((char_u *)ga.ga_data + i)
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#define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i])
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#define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + i)
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/* Copy "str" into "buf" or allocated memory, unmodified. */
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if (buf == NULL) {
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ga_init2(&ga, 1, 10);
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if (ga_grow(&ga, len + 1) == FAIL)
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return NULL;
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mch_memmove(ga.ga_data, str, (size_t)len);
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ga.ga_len = len;
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} else {
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if (len >= buflen) /* Ugly! */
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len = buflen - 1;
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mch_memmove(buf, str, (size_t)len);
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}
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if (buf == NULL)
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GA_CHAR(len) = NUL;
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else
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buf[len] = NUL;
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/* Make each character lower case. */
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i = 0;
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while (STR_CHAR(i) != NUL) {
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if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1)) {
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if (enc_utf8) {
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int c = utf_ptr2char(STR_PTR(i));
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int olen = utf_ptr2len(STR_PTR(i));
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int lc = utf_tolower(c);
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|
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/* Only replace the character when it is not an invalid
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* sequence (ASCII character or more than one byte) and
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* utf_tolower() doesn't return the original character. */
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if ((c < 0x80 || olen > 1) && c != lc) {
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int nlen = utf_char2len(lc);
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|
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/* If the byte length changes need to shift the following
|
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* characters forward or backward. */
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if (olen != nlen) {
|
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if (nlen > olen) {
|
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if (buf == NULL
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? ga_grow(&ga, nlen - olen + 1) == FAIL
|
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: len + nlen - olen >= buflen) {
|
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/* out of memory, keep old char */
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lc = c;
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nlen = olen;
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}
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}
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if (olen != nlen) {
|
|
if (buf == NULL) {
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STRMOVE(GA_PTR(i) + nlen, GA_PTR(i) + olen);
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ga.ga_len += nlen - olen;
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} else {
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STRMOVE(buf + i + nlen, buf + i + olen);
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len += nlen - olen;
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|
}
|
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}
|
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}
|
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(void)utf_char2bytes(lc, STR_PTR(i));
|
|
}
|
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}
|
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/* skip to next multi-byte char */
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i += (*mb_ptr2len)(STR_PTR(i));
|
|
} else {
|
|
if (buf == NULL)
|
|
GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i));
|
|
else
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|
buf[i] = TOLOWER_LOC(buf[i]);
|
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++i;
|
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}
|
|
}
|
|
|
|
if (buf == NULL)
|
|
return (char_u *)ga.ga_data;
|
|
return buf;
|
|
}
|
|
|
|
/*
|
|
* Catch 22: chartab[] can't be initialized before the options are
|
|
* initialized, and initializing options may cause transchar() to be called!
|
|
* When chartab_initialized == FALSE don't use chartab[].
|
|
* Does NOT work for multi-byte characters, c must be <= 255.
|
|
* Also doesn't work for the first byte of a multi-byte, "c" must be a
|
|
* character!
|
|
*/
|
|
static char_u transchar_buf[7];
|
|
|
|
char_u *transchar(int c)
|
|
{
|
|
int i;
|
|
|
|
i = 0;
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|
if (IS_SPECIAL(c)) { /* special key code, display as ~@ char */
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|
transchar_buf[0] = '~';
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|
transchar_buf[1] = '@';
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i = 2;
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c = K_SECOND(c);
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|
}
|
|
|
|
if ((!chartab_initialized && (
|
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(c >= ' ' && c <= '~')
|
|
|| F_ischar(c)
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|
)) || (c < 256 && vim_isprintc_strict(c))) {
|
|
/* printable character */
|
|
transchar_buf[i] = c;
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transchar_buf[i + 1] = NUL;
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|
} else
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|
transchar_nonprint(transchar_buf + i, c);
|
|
return transchar_buf;
|
|
}
|
|
|
|
/*
|
|
* Like transchar(), but called with a byte instead of a character. Checks
|
|
* for an illegal UTF-8 byte.
|
|
*/
|
|
char_u *transchar_byte(int c)
|
|
{
|
|
if (enc_utf8 && c >= 0x80) {
|
|
transchar_nonprint(transchar_buf, c);
|
|
return transchar_buf;
|
|
}
|
|
return transchar(c);
|
|
}
|
|
|
|
/*
|
|
* Convert non-printable character to two or more printable characters in
|
|
* "buf[]". "buf" needs to be able to hold five bytes.
|
|
* Does NOT work for multi-byte characters, c must be <= 255.
|
|
*/
|
|
void transchar_nonprint(char_u *buf, int c)
|
|
{
|
|
if (c == NL)
|
|
c = NUL; /* we use newline in place of a NUL */
|
|
else if (c == CAR && get_fileformat(curbuf) == EOL_MAC)
|
|
c = NL; /* we use CR in place of NL in this case */
|
|
|
|
if (dy_flags & DY_UHEX) /* 'display' has "uhex" */
|
|
transchar_hex(buf, c);
|
|
|
|
else if (c <= 0x7f) { /* 0x00 - 0x1f and 0x7f */
|
|
buf[0] = '^';
|
|
buf[1] = c ^ 0x40; /* DEL displayed as ^? */
|
|
|
|
buf[2] = NUL;
|
|
} else if (enc_utf8 && c >= 0x80) {
|
|
transchar_hex(buf, c);
|
|
} else if (c >= ' ' + 0x80 && c <= '~' + 0x80) { /* 0xa0 - 0xfe */
|
|
buf[0] = '|';
|
|
buf[1] = c - 0x80;
|
|
buf[2] = NUL;
|
|
} else { /* 0x80 - 0x9f and 0xff */
|
|
/*
|
|
* TODO: EBCDIC I don't know what to do with this chars, so I display
|
|
* them as '~?' for now
|
|
*/
|
|
buf[0] = '~';
|
|
buf[1] = (c - 0x80) ^ 0x40; /* 0xff displayed as ~? */
|
|
buf[2] = NUL;
|
|
}
|
|
}
|
|
|
|
void transchar_hex(char_u *buf, int c)
|
|
{
|
|
int i = 0;
|
|
|
|
buf[0] = '<';
|
|
if (c > 255) {
|
|
buf[++i] = nr2hex((unsigned)c >> 12);
|
|
buf[++i] = nr2hex((unsigned)c >> 8);
|
|
}
|
|
buf[++i] = nr2hex((unsigned)c >> 4);
|
|
buf[++i] = nr2hex((unsigned)c);
|
|
buf[++i] = '>';
|
|
buf[++i] = NUL;
|
|
}
|
|
|
|
/*
|
|
* Convert the lower 4 bits of byte "c" to its hex character.
|
|
* Lower case letters are used to avoid the confusion of <F1> being 0xf1 or
|
|
* function key 1.
|
|
*/
|
|
static unsigned nr2hex(unsigned c)
|
|
{
|
|
if ((c & 0xf) <= 9)
|
|
return (c & 0xf) + '0';
|
|
return (c & 0xf) - 10 + 'a';
|
|
}
|
|
|
|
/*
|
|
* Return number of display cells occupied by byte "b".
|
|
* Caller must make sure 0 <= b <= 255.
|
|
* For multi-byte mode "b" must be the first byte of a character.
|
|
* A TAB is counted as two cells: "^I".
|
|
* For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of
|
|
* cells depends on further bytes.
|
|
*/
|
|
int byte2cells(int b)
|
|
{
|
|
if (enc_utf8 && b >= 0x80)
|
|
return 0;
|
|
return chartab[b] & CT_CELL_MASK;
|
|
}
|
|
|
|
/*
|
|
* Return number of display cells occupied by character "c".
|
|
* "c" can be a special key (negative number) in which case 3 or 4 is returned.
|
|
* A TAB is counted as two cells: "^I" or four: "<09>".
|
|
*/
|
|
int char2cells(int c)
|
|
{
|
|
if (IS_SPECIAL(c))
|
|
return char2cells(K_SECOND(c)) + 2;
|
|
if (c >= 0x80) {
|
|
/* UTF-8: above 0x80 need to check the value */
|
|
if (enc_utf8)
|
|
return utf_char2cells(c);
|
|
/* DBCS: double-byte means double-width, except for euc-jp with first
|
|
* byte 0x8e */
|
|
if (enc_dbcs != 0 && c >= 0x100) {
|
|
if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e)
|
|
return 1;
|
|
return 2;
|
|
}
|
|
}
|
|
return chartab[c & 0xff] & CT_CELL_MASK;
|
|
}
|
|
|
|
/*
|
|
* Return number of display cells occupied by character at "*p".
|
|
* A TAB is counted as two cells: "^I" or four: "<09>".
|
|
*/
|
|
int ptr2cells(char_u *p)
|
|
{
|
|
/* For UTF-8 we need to look at more bytes if the first byte is >= 0x80. */
|
|
if (enc_utf8 && *p >= 0x80)
|
|
return utf_ptr2cells(p);
|
|
/* For DBCS we can tell the cell count from the first byte. */
|
|
return chartab[*p] & CT_CELL_MASK;
|
|
}
|
|
|
|
/*
|
|
* Return the number of character cells string "s" will take on the screen,
|
|
* counting TABs as two characters: "^I".
|
|
*/
|
|
int vim_strsize(char_u *s)
|
|
{
|
|
return vim_strnsize(s, (int)MAXCOL);
|
|
}
|
|
|
|
/*
|
|
* Return the number of character cells string "s[len]" will take on the
|
|
* screen, counting TABs as two characters: "^I".
|
|
*/
|
|
int vim_strnsize(char_u *s, int len)
|
|
{
|
|
int size = 0;
|
|
|
|
while (*s != NUL && --len >= 0) {
|
|
if (has_mbyte) {
|
|
int l = (*mb_ptr2len)(s);
|
|
|
|
size += ptr2cells(s);
|
|
s += l;
|
|
len -= l - 1;
|
|
} else
|
|
size += byte2cells(*s++);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/*
|
|
* Return the number of characters 'c' will take on the screen, taking
|
|
* into account the size of a tab.
|
|
* Use a define to make it fast, this is used very often!!!
|
|
* Also see getvcol() below.
|
|
*/
|
|
|
|
#define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \
|
|
if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \
|
|
{ \
|
|
int ts; \
|
|
ts = (buf)->b_p_ts; \
|
|
return (int)(ts - (col % ts)); \
|
|
} \
|
|
else \
|
|
return ptr2cells(p);
|
|
|
|
#if defined(FEAT_VREPLACE) || defined(FEAT_EX_EXTRA) || defined(FEAT_GUI) \
|
|
|| defined(FEAT_VIRTUALEDIT) || defined(PROTO)
|
|
int chartabsize(char_u *p, colnr_T col)
|
|
{
|
|
RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col)
|
|
}
|
|
#endif
|
|
|
|
static int win_chartabsize(win_T *wp, char_u *p, colnr_T col)
|
|
{
|
|
RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col)
|
|
}
|
|
|
|
/*
|
|
* Return the number of characters the string 's' will take on the screen,
|
|
* taking into account the size of a tab.
|
|
*/
|
|
int linetabsize(char_u *s)
|
|
{
|
|
return linetabsize_col(0, s);
|
|
}
|
|
|
|
/*
|
|
* Like linetabsize(), but starting at column "startcol".
|
|
*/
|
|
int linetabsize_col(int startcol, char_u *s)
|
|
{
|
|
colnr_T col = startcol;
|
|
|
|
while (*s != NUL)
|
|
col += lbr_chartabsize_adv(&s, col);
|
|
return (int)col;
|
|
}
|
|
|
|
/*
|
|
* Like linetabsize(), but for a given window instead of the current one.
|
|
*/
|
|
int win_linetabsize(win_T *wp, char_u *p, colnr_T len)
|
|
{
|
|
colnr_T col = 0;
|
|
char_u *s;
|
|
|
|
for (s = p; *s != NUL && (len == MAXCOL || s < p + len); mb_ptr_adv(s))
|
|
col += win_lbr_chartabsize(wp, s, col, NULL);
|
|
return (int)col;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if 'c' is a normal identifier character:
|
|
* Letters and characters from the 'isident' option.
|
|
*/
|
|
int vim_isIDc(int c)
|
|
{
|
|
return c > 0 && c < 0x100 && (chartab[c] & CT_ID_CHAR);
|
|
}
|
|
|
|
/*
|
|
* return TRUE if 'c' is a keyword character: Letters and characters from
|
|
* 'iskeyword' option for current buffer.
|
|
* For multi-byte characters mb_get_class() is used (builtin rules).
|
|
*/
|
|
int vim_iswordc(int c)
|
|
{
|
|
return vim_iswordc_buf(c, curbuf);
|
|
}
|
|
|
|
int vim_iswordc_buf(int c, buf_T *buf)
|
|
{
|
|
if (c >= 0x100) {
|
|
if (enc_dbcs != 0)
|
|
return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2;
|
|
if (enc_utf8)
|
|
return utf_class(c) >= 2;
|
|
}
|
|
return c > 0 && c < 0x100 && GET_CHARTAB(buf, c) != 0;
|
|
}
|
|
|
|
/*
|
|
* Just like vim_iswordc() but uses a pointer to the (multi-byte) character.
|
|
*/
|
|
int vim_iswordp(char_u *p)
|
|
{
|
|
if (has_mbyte && MB_BYTE2LEN(*p) > 1)
|
|
return mb_get_class(p) >= 2;
|
|
return GET_CHARTAB(curbuf, *p) != 0;
|
|
}
|
|
|
|
int vim_iswordp_buf(char_u *p, buf_T *buf)
|
|
{
|
|
if (has_mbyte && MB_BYTE2LEN(*p) > 1)
|
|
return mb_get_class(p) >= 2;
|
|
return GET_CHARTAB(buf, *p) != 0;
|
|
}
|
|
|
|
/*
|
|
* return TRUE if 'c' is a valid file-name character
|
|
* Assume characters above 0x100 are valid (multi-byte).
|
|
*/
|
|
int vim_isfilec(int c)
|
|
{
|
|
return c >= 0x100 || (c > 0 && (chartab[c] & CT_FNAME_CHAR));
|
|
}
|
|
|
|
/*
|
|
* return TRUE if 'c' is a valid file-name character or a wildcard character
|
|
* Assume characters above 0x100 are valid (multi-byte).
|
|
* Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]")
|
|
* returns false.
|
|
*/
|
|
int vim_isfilec_or_wc(int c)
|
|
{
|
|
char_u buf[2];
|
|
|
|
buf[0] = (char_u)c;
|
|
buf[1] = NUL;
|
|
return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf);
|
|
}
|
|
|
|
/*
|
|
* return TRUE if 'c' is a printable character
|
|
* Assume characters above 0x100 are printable (multi-byte), except for
|
|
* Unicode.
|
|
*/
|
|
int vim_isprintc(int c)
|
|
{
|
|
if (enc_utf8 && c >= 0x100)
|
|
return utf_printable(c);
|
|
return c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR));
|
|
}
|
|
|
|
/*
|
|
* Strict version of vim_isprintc(c), don't return TRUE if "c" is the head
|
|
* byte of a double-byte character.
|
|
*/
|
|
int vim_isprintc_strict(int c)
|
|
{
|
|
if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1)
|
|
return FALSE;
|
|
if (enc_utf8 && c >= 0x100)
|
|
return utf_printable(c);
|
|
return c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR));
|
|
}
|
|
|
|
/*
|
|
* like chartabsize(), but also check for line breaks on the screen
|
|
*/
|
|
int lbr_chartabsize(unsigned char *s, colnr_T col)
|
|
{
|
|
if (!curwin->w_p_lbr && *p_sbr == NUL) {
|
|
if (curwin->w_p_wrap)
|
|
return win_nolbr_chartabsize(curwin, s, col, NULL);
|
|
RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col)
|
|
}
|
|
return win_lbr_chartabsize(curwin, s, col, NULL);
|
|
}
|
|
|
|
/*
|
|
* Call lbr_chartabsize() and advance the pointer.
|
|
*/
|
|
int lbr_chartabsize_adv(char_u **s, colnr_T col)
|
|
{
|
|
int retval;
|
|
|
|
retval = lbr_chartabsize(*s, col);
|
|
mb_ptr_adv(*s);
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* This function is used very often, keep it fast!!!!
|
|
*
|
|
* If "headp" not NULL, set *headp to the size of what we for 'showbreak'
|
|
* string at start of line. Warning: *headp is only set if it's a non-zero
|
|
* value, init to 0 before calling.
|
|
*/
|
|
int win_lbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp)
|
|
{
|
|
int c;
|
|
int size;
|
|
colnr_T col2;
|
|
colnr_T colmax;
|
|
int added;
|
|
int mb_added = 0;
|
|
int numberextra;
|
|
char_u *ps;
|
|
int tab_corr = (*s == TAB);
|
|
int n;
|
|
|
|
/*
|
|
* No 'linebreak' and 'showbreak': return quickly.
|
|
*/
|
|
if (!wp->w_p_lbr && *p_sbr == NUL) {
|
|
if (wp->w_p_wrap)
|
|
return win_nolbr_chartabsize(wp, s, col, headp);
|
|
RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col)
|
|
}
|
|
|
|
/*
|
|
* First get normal size, without 'linebreak'
|
|
*/
|
|
size = win_chartabsize(wp, s, col);
|
|
c = *s;
|
|
|
|
/*
|
|
* If 'linebreak' set check at a blank before a non-blank if the line
|
|
* needs a break here
|
|
*/
|
|
if (wp->w_p_lbr
|
|
&& vim_isbreak(c)
|
|
&& !vim_isbreak(s[1])
|
|
&& !wp->w_p_list
|
|
&& wp->w_p_wrap
|
|
&& wp->w_width != 0
|
|
) {
|
|
/*
|
|
* Count all characters from first non-blank after a blank up to next
|
|
* non-blank after a blank.
|
|
*/
|
|
numberextra = win_col_off(wp);
|
|
col2 = col;
|
|
colmax = (colnr_T)(W_WIDTH(wp) - numberextra);
|
|
if (col >= colmax) {
|
|
n = colmax + win_col_off2(wp);
|
|
if (n > 0)
|
|
colmax += (((col - colmax) / n) + 1) * n;
|
|
}
|
|
|
|
for (;; ) {
|
|
ps = s;
|
|
mb_ptr_adv(s);
|
|
c = *s;
|
|
if (!(c != NUL
|
|
&& (vim_isbreak(c)
|
|
|| (!vim_isbreak(c)
|
|
&& (col2 == col || !vim_isbreak(*ps))))))
|
|
break;
|
|
|
|
col2 += win_chartabsize(wp, s, col2);
|
|
if (col2 >= colmax) { /* doesn't fit */
|
|
size = colmax - col;
|
|
tab_corr = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
} else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1
|
|
&& wp->w_p_wrap && in_win_border(wp, col)) {
|
|
++size; /* Count the ">" in the last column. */
|
|
mb_added = 1;
|
|
}
|
|
|
|
/*
|
|
* May have to add something for 'showbreak' string at start of line
|
|
* Set *headp to the size of what we add.
|
|
*/
|
|
added = 0;
|
|
if (*p_sbr != NUL && wp->w_p_wrap && col != 0) {
|
|
numberextra = win_col_off(wp);
|
|
col += numberextra + mb_added;
|
|
if (col >= (colnr_T)W_WIDTH(wp)) {
|
|
col -= W_WIDTH(wp);
|
|
numberextra = W_WIDTH(wp) - (numberextra - win_col_off2(wp));
|
|
if (numberextra > 0)
|
|
col = col % numberextra;
|
|
}
|
|
if (col == 0 || col + size > (colnr_T)W_WIDTH(wp)) {
|
|
added = vim_strsize(p_sbr);
|
|
if (tab_corr)
|
|
size += (added / wp->w_buffer->b_p_ts) * wp->w_buffer->b_p_ts;
|
|
else
|
|
size += added;
|
|
if (col != 0)
|
|
added = 0;
|
|
}
|
|
}
|
|
if (headp != NULL)
|
|
*headp = added + mb_added;
|
|
return size;
|
|
}
|
|
|
|
/*
|
|
* Like win_lbr_chartabsize(), except that we know 'linebreak' is off and
|
|
* 'wrap' is on. This means we need to check for a double-byte character that
|
|
* doesn't fit at the end of the screen line.
|
|
*/
|
|
static int win_nolbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp)
|
|
{
|
|
int n;
|
|
|
|
if (*s == TAB && (!wp->w_p_list || lcs_tab1)) {
|
|
n = wp->w_buffer->b_p_ts;
|
|
return (int)(n - (col % n));
|
|
}
|
|
n = ptr2cells(s);
|
|
/* Add one cell for a double-width character in the last column of the
|
|
* window, displayed with a ">". */
|
|
if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col)) {
|
|
if (headp != NULL)
|
|
*headp = 1;
|
|
return 3;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if virtual column "vcol" is in the rightmost column of window
|
|
* "wp".
|
|
*/
|
|
int in_win_border(win_T *wp, colnr_T vcol)
|
|
{
|
|
int width1; /* width of first line (after line number) */
|
|
int width2; /* width of further lines */
|
|
|
|
if (wp->w_width == 0) /* there is no border */
|
|
return FALSE;
|
|
width1 = W_WIDTH(wp) - win_col_off(wp);
|
|
if ((int)vcol < width1 - 1)
|
|
return FALSE;
|
|
if ((int)vcol == width1 - 1)
|
|
return TRUE;
|
|
width2 = width1 + win_col_off2(wp);
|
|
if (width2 <= 0)
|
|
return FALSE;
|
|
return (vcol - width1) % width2 == width2 - 1;
|
|
}
|
|
|
|
/*
|
|
* Get virtual column number of pos.
|
|
* start: on the first position of this character (TAB, ctrl)
|
|
* cursor: where the cursor is on this character (first char, except for TAB)
|
|
* end: on the last position of this character (TAB, ctrl)
|
|
*
|
|
* This is used very often, keep it fast!
|
|
*/
|
|
void getvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor, colnr_T *end)
|
|
{
|
|
colnr_T vcol;
|
|
char_u *ptr; /* points to current char */
|
|
char_u *posptr; /* points to char at pos->col */
|
|
int incr;
|
|
int head;
|
|
int ts = wp->w_buffer->b_p_ts;
|
|
int c;
|
|
|
|
vcol = 0;
|
|
ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
|
|
if (pos->col == MAXCOL)
|
|
posptr = NULL; /* continue until the NUL */
|
|
else
|
|
posptr = ptr + pos->col;
|
|
|
|
/*
|
|
* This function is used very often, do some speed optimizations.
|
|
* When 'list', 'linebreak' and 'showbreak' are not set use a simple loop.
|
|
* Also use this when 'list' is set but tabs take their normal size.
|
|
*/
|
|
if ((!wp->w_p_list || lcs_tab1 != NUL)
|
|
&& !wp->w_p_lbr && *p_sbr == NUL
|
|
) {
|
|
for (;; ) {
|
|
head = 0;
|
|
c = *ptr;
|
|
/* make sure we don't go past the end of the line */
|
|
if (c == NUL) {
|
|
incr = 1; /* NUL at end of line only takes one column */
|
|
break;
|
|
}
|
|
/* A tab gets expanded, depending on the current column */
|
|
if (c == TAB)
|
|
incr = ts - (vcol % ts);
|
|
else {
|
|
if (has_mbyte) {
|
|
/* For utf-8, if the byte is >= 0x80, need to look at
|
|
* further bytes to find the cell width. */
|
|
if (enc_utf8 && c >= 0x80)
|
|
incr = utf_ptr2cells(ptr);
|
|
else
|
|
incr = CHARSIZE(c);
|
|
|
|
/* If a double-cell char doesn't fit at the end of a line
|
|
* it wraps to the next line, it's like this char is three
|
|
* cells wide. */
|
|
if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1
|
|
&& in_win_border(wp, vcol)) {
|
|
++incr;
|
|
head = 1;
|
|
}
|
|
} else
|
|
incr = CHARSIZE(c);
|
|
}
|
|
|
|
if (posptr != NULL && ptr >= posptr) /* character at pos->col */
|
|
break;
|
|
|
|
vcol += incr;
|
|
mb_ptr_adv(ptr);
|
|
}
|
|
} else {
|
|
for (;; ) {
|
|
/* A tab gets expanded, depending on the current column */
|
|
head = 0;
|
|
incr = win_lbr_chartabsize(wp, ptr, vcol, &head);
|
|
/* make sure we don't go past the end of the line */
|
|
if (*ptr == NUL) {
|
|
incr = 1; /* NUL at end of line only takes one column */
|
|
break;
|
|
}
|
|
|
|
if (posptr != NULL && ptr >= posptr) /* character at pos->col */
|
|
break;
|
|
|
|
vcol += incr;
|
|
mb_ptr_adv(ptr);
|
|
}
|
|
}
|
|
if (start != NULL)
|
|
*start = vcol + head;
|
|
if (end != NULL)
|
|
*end = vcol + incr - 1;
|
|
if (cursor != NULL) {
|
|
if (*ptr == TAB
|
|
&& (State & NORMAL)
|
|
&& !wp->w_p_list
|
|
&& !virtual_active()
|
|
&& !(VIsual_active
|
|
&& (*p_sel == 'e' || ltoreq(*pos, VIsual)))
|
|
)
|
|
*cursor = vcol + incr - 1; /* cursor at end */
|
|
else
|
|
*cursor = vcol + head; /* cursor at start */
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Get virtual cursor column in the current window, pretending 'list' is off.
|
|
*/
|
|
colnr_T getvcol_nolist(pos_T *posp)
|
|
{
|
|
int list_save = curwin->w_p_list;
|
|
colnr_T vcol;
|
|
|
|
curwin->w_p_list = FALSE;
|
|
getvcol(curwin, posp, NULL, &vcol, NULL);
|
|
curwin->w_p_list = list_save;
|
|
return vcol;
|
|
}
|
|
|
|
/*
|
|
* Get virtual column in virtual mode.
|
|
*/
|
|
void getvvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor, colnr_T *end)
|
|
{
|
|
colnr_T col;
|
|
colnr_T coladd;
|
|
colnr_T endadd;
|
|
char_u *ptr;
|
|
|
|
if (virtual_active()) {
|
|
/* For virtual mode, only want one value */
|
|
getvcol(wp, pos, &col, NULL, NULL);
|
|
|
|
coladd = pos->coladd;
|
|
endadd = 0;
|
|
/* Cannot put the cursor on part of a wide character. */
|
|
ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
|
|
if (pos->col < (colnr_T)STRLEN(ptr)) {
|
|
int c = (*mb_ptr2char)(ptr + pos->col);
|
|
|
|
if (c != TAB && vim_isprintc(c)) {
|
|
endadd = (colnr_T)(char2cells(c) - 1);
|
|
if (coladd > endadd) /* past end of line */
|
|
endadd = 0;
|
|
else
|
|
coladd = 0;
|
|
}
|
|
}
|
|
col += coladd;
|
|
if (start != NULL)
|
|
*start = col;
|
|
if (cursor != NULL)
|
|
*cursor = col;
|
|
if (end != NULL)
|
|
*end = col + endadd;
|
|
} else
|
|
getvcol(wp, pos, start, cursor, end);
|
|
}
|
|
|
|
/*
|
|
* Get the leftmost and rightmost virtual column of pos1 and pos2.
|
|
* Used for Visual block mode.
|
|
*/
|
|
void getvcols(win_T *wp, pos_T *pos1, pos_T *pos2, colnr_T *left, colnr_T *right)
|
|
{
|
|
colnr_T from1, from2, to1, to2;
|
|
|
|
if (ltp(pos1, pos2)) {
|
|
getvvcol(wp, pos1, &from1, NULL, &to1);
|
|
getvvcol(wp, pos2, &from2, NULL, &to2);
|
|
} else {
|
|
getvvcol(wp, pos2, &from1, NULL, &to1);
|
|
getvvcol(wp, pos1, &from2, NULL, &to2);
|
|
}
|
|
if (from2 < from1)
|
|
*left = from2;
|
|
else
|
|
*left = from1;
|
|
if (to2 > to1) {
|
|
if (*p_sel == 'e' && from2 - 1 >= to1)
|
|
*right = from2 - 1;
|
|
else
|
|
*right = to2;
|
|
} else
|
|
*right = to1;
|
|
}
|
|
|
|
/*
|
|
* skipwhite: skip over ' ' and '\t'.
|
|
*/
|
|
char_u *skipwhite(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (vim_iswhite(*p)) /* skip to next non-white */
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* skip over digits
|
|
*/
|
|
char_u *skipdigits(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (VIM_ISDIGIT(*p)) /* skip to next non-digit */
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* skip over digits and hex characters
|
|
*/
|
|
char_u *skiphex(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (vim_isxdigit(*p)) /* skip to next non-digit */
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* skip to digit (or NUL after the string)
|
|
*/
|
|
char_u *skiptodigit(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (*p != NUL && !VIM_ISDIGIT(*p)) /* skip to next digit */
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* skip to hex character (or NUL after the string)
|
|
*/
|
|
char_u *skiptohex(char_u *q)
|
|
{
|
|
char_u *p = q;
|
|
|
|
while (*p != NUL && !vim_isxdigit(*p)) /* skip to next digit */
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Variant of isdigit() that can handle characters > 0x100.
|
|
* We don't use isdigit() here, because on some systems it also considers
|
|
* superscript 1 to be a digit.
|
|
* Use the VIM_ISDIGIT() macro for simple arguments.
|
|
*/
|
|
int vim_isdigit(int c)
|
|
{
|
|
return c >= '0' && c <= '9';
|
|
}
|
|
|
|
/*
|
|
* Variant of isxdigit() that can handle characters > 0x100.
|
|
* We don't use isxdigit() here, because on some systems it also considers
|
|
* superscript 1 to be a digit.
|
|
*/
|
|
int vim_isxdigit(int c)
|
|
{
|
|
return (c >= '0' && c <= '9')
|
|
|| (c >= 'a' && c <= 'f')
|
|
|| (c >= 'A' && c <= 'F');
|
|
}
|
|
|
|
/*
|
|
* Vim's own character class functions. These exist because many library
|
|
* islower()/toupper() etc. do not work properly: they crash when used with
|
|
* invalid values or can't handle latin1 when the locale is C.
|
|
* Speed is most important here.
|
|
*/
|
|
#define LATIN1LOWER 'l'
|
|
#define LATIN1UPPER 'U'
|
|
|
|
static char_u latin1flags[257] =
|
|
" UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll";
|
|
static char_u latin1upper[257] =
|
|
" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xf7\xd8\xd9\xda\xdb\xdc\xdd\xde\xff";
|
|
static char_u latin1lower[257] =
|
|
" !\"#$%&'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xd7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff";
|
|
|
|
int vim_islower(int c)
|
|
{
|
|
if (c <= '@')
|
|
return FALSE;
|
|
if (c >= 0x80) {
|
|
if (enc_utf8)
|
|
return utf_islower(c);
|
|
if (c >= 0x100) {
|
|
#ifdef HAVE_ISWLOWER
|
|
if (has_mbyte)
|
|
return iswlower(c);
|
|
#endif
|
|
/* islower() can't handle these chars and may crash */
|
|
return FALSE;
|
|
}
|
|
if (enc_latin1like)
|
|
return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER;
|
|
}
|
|
return islower(c);
|
|
}
|
|
|
|
int vim_isupper(int c)
|
|
{
|
|
if (c <= '@')
|
|
return FALSE;
|
|
if (c >= 0x80) {
|
|
if (enc_utf8)
|
|
return utf_isupper(c);
|
|
if (c >= 0x100) {
|
|
#ifdef HAVE_ISWUPPER
|
|
if (has_mbyte)
|
|
return iswupper(c);
|
|
#endif
|
|
/* islower() can't handle these chars and may crash */
|
|
return FALSE;
|
|
}
|
|
if (enc_latin1like)
|
|
return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER;
|
|
}
|
|
return isupper(c);
|
|
}
|
|
|
|
int vim_toupper(int c)
|
|
{
|
|
if (c <= '@')
|
|
return c;
|
|
if (c >= 0x80) {
|
|
if (enc_utf8)
|
|
return utf_toupper(c);
|
|
if (c >= 0x100) {
|
|
#ifdef HAVE_TOWUPPER
|
|
if (has_mbyte)
|
|
return towupper(c);
|
|
#endif
|
|
/* toupper() can't handle these chars and may crash */
|
|
return c;
|
|
}
|
|
if (enc_latin1like)
|
|
return latin1upper[c];
|
|
}
|
|
return TOUPPER_LOC(c);
|
|
}
|
|
|
|
int vim_tolower(int c)
|
|
{
|
|
if (c <= '@')
|
|
return c;
|
|
if (c >= 0x80) {
|
|
if (enc_utf8)
|
|
return utf_tolower(c);
|
|
if (c >= 0x100) {
|
|
#ifdef HAVE_TOWLOWER
|
|
if (has_mbyte)
|
|
return towlower(c);
|
|
#endif
|
|
/* tolower() can't handle these chars and may crash */
|
|
return c;
|
|
}
|
|
if (enc_latin1like)
|
|
return latin1lower[c];
|
|
}
|
|
return TOLOWER_LOC(c);
|
|
}
|
|
|
|
/*
|
|
* skiptowhite: skip over text until ' ' or '\t' or NUL.
|
|
*/
|
|
char_u *skiptowhite(char_u *p)
|
|
{
|
|
while (*p != ' ' && *p != '\t' && *p != NUL)
|
|
++p;
|
|
return p;
|
|
}
|
|
|
|
#if defined(FEAT_LISTCMDS) || defined(FEAT_SIGNS) || defined(FEAT_SNIFF) \
|
|
|| defined(PROTO)
|
|
/*
|
|
* skiptowhite_esc: Like skiptowhite(), but also skip escaped chars
|
|
*/
|
|
char_u *skiptowhite_esc(char_u *p)
|
|
{
|
|
while (*p != ' ' && *p != '\t' && *p != NUL) {
|
|
if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL)
|
|
++p;
|
|
++p;
|
|
}
|
|
return p;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Getdigits: Get a number from a string and skip over it.
|
|
* Note: the argument is a pointer to a char_u pointer!
|
|
*/
|
|
long getdigits(char_u **pp)
|
|
{
|
|
char_u *p;
|
|
long retval;
|
|
|
|
p = *pp;
|
|
retval = atol((char *)p);
|
|
if (*p == '-') /* skip negative sign */
|
|
++p;
|
|
p = skipdigits(p); /* skip to next non-digit */
|
|
*pp = p;
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if "lbuf" is empty or only contains blanks.
|
|
*/
|
|
int vim_isblankline(char_u *lbuf)
|
|
{
|
|
char_u *p;
|
|
|
|
p = skipwhite(lbuf);
|
|
return *p == NUL || *p == '\r' || *p == '\n';
|
|
}
|
|
|
|
/*
|
|
* Convert a string into a long and/or unsigned long, taking care of
|
|
* hexadecimal and octal numbers. Accepts a '-' sign.
|
|
* If "hexp" is not NULL, returns a flag to indicate the type of the number:
|
|
* 0 decimal
|
|
* '0' octal
|
|
* 'X' hex
|
|
* 'x' hex
|
|
* If "len" is not NULL, the length of the number in characters is returned.
|
|
* If "nptr" is not NULL, the signed result is returned in it.
|
|
* If "unptr" is not NULL, the unsigned result is returned in it.
|
|
* If "dooct" is non-zero recognize octal numbers, when > 1 always assume
|
|
* octal number.
|
|
* If "dohex" is non-zero recognize hex numbers, when > 1 always assume
|
|
* hex number.
|
|
*/
|
|
void
|
|
vim_str2nr (
|
|
char_u *start,
|
|
int *hexp, /* return: type of number 0 = decimal, 'x'
|
|
or 'X' is hex, '0' = octal */
|
|
int *len, /* return: detected length of number */
|
|
int dooct, /* recognize octal number */
|
|
int dohex, /* recognize hex number */
|
|
long *nptr, /* return: signed result */
|
|
unsigned long *unptr /* return: unsigned result */
|
|
)
|
|
{
|
|
char_u *ptr = start;
|
|
int hex = 0; /* default is decimal */
|
|
int negative = FALSE;
|
|
unsigned long un = 0;
|
|
int n;
|
|
|
|
if (ptr[0] == '-') {
|
|
negative = TRUE;
|
|
++ptr;
|
|
}
|
|
|
|
/* Recognize hex and octal. */
|
|
if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9') {
|
|
hex = ptr[1];
|
|
if (dohex && (hex == 'X' || hex == 'x') && vim_isxdigit(ptr[2]))
|
|
ptr += 2; /* hexadecimal */
|
|
else {
|
|
hex = 0; /* default is decimal */
|
|
if (dooct) {
|
|
/* Don't interpret "0", "08" or "0129" as octal. */
|
|
for (n = 1; VIM_ISDIGIT(ptr[n]); ++n) {
|
|
if (ptr[n] > '7') {
|
|
hex = 0; /* can't be octal */
|
|
break;
|
|
}
|
|
if (ptr[n] >= '0')
|
|
hex = '0'; /* assume octal */
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Do the string-to-numeric conversion "manually" to avoid sscanf quirks.
|
|
*/
|
|
if (hex == '0' || dooct > 1) {
|
|
/* octal */
|
|
while ('0' <= *ptr && *ptr <= '7') {
|
|
un = 8 * un + (unsigned long)(*ptr - '0');
|
|
++ptr;
|
|
}
|
|
} else if (hex != 0 || dohex > 1) {
|
|
/* hex */
|
|
while (vim_isxdigit(*ptr)) {
|
|
un = 16 * un + (unsigned long)hex2nr(*ptr);
|
|
++ptr;
|
|
}
|
|
} else {
|
|
/* decimal */
|
|
while (VIM_ISDIGIT(*ptr)) {
|
|
un = 10 * un + (unsigned long)(*ptr - '0');
|
|
++ptr;
|
|
}
|
|
}
|
|
|
|
if (hexp != NULL)
|
|
*hexp = hex;
|
|
if (len != NULL)
|
|
*len = (int)(ptr - start);
|
|
if (nptr != NULL) {
|
|
if (negative) /* account for leading '-' for decimal numbers */
|
|
*nptr = -(long)un;
|
|
else
|
|
*nptr = (long)un;
|
|
}
|
|
if (unptr != NULL)
|
|
*unptr = un;
|
|
}
|
|
|
|
/*
|
|
* Return the value of a single hex character.
|
|
* Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'.
|
|
*/
|
|
int hex2nr(int c)
|
|
{
|
|
if (c >= 'a' && c <= 'f')
|
|
return c - 'a' + 10;
|
|
if (c >= 'A' && c <= 'F')
|
|
return c - 'A' + 10;
|
|
return c - '0';
|
|
}
|
|
|
|
#if defined(FEAT_TERMRESPONSE) \
|
|
|| (defined(FEAT_GUI_GTK) && defined(FEAT_WINDOWS)) || defined(PROTO)
|
|
/*
|
|
* Convert two hex characters to a byte.
|
|
* Return -1 if one of the characters is not hex.
|
|
*/
|
|
int hexhex2nr(char_u *p)
|
|
{
|
|
if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1]))
|
|
return -1;
|
|
return (hex2nr(p[0]) << 4) + hex2nr(p[1]);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Return TRUE if "str" starts with a backslash that should be removed.
|
|
* For MS-DOS, WIN32 and OS/2 this is only done when the character after the
|
|
* backslash is not a normal file name character.
|
|
* '$' is a valid file name character, we don't remove the backslash before
|
|
* it. This means it is not possible to use an environment variable after a
|
|
* backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works.
|
|
* Although "\ name" is valid, the backslash in "Program\ files" must be
|
|
* removed. Assume a file name doesn't start with a space.
|
|
* For multi-byte names, never remove a backslash before a non-ascii
|
|
* character, assume that all multi-byte characters are valid file name
|
|
* characters.
|
|
*/
|
|
int rem_backslash(char_u *str)
|
|
{
|
|
#ifdef BACKSLASH_IN_FILENAME
|
|
return str[0] == '\\'
|
|
&& str[1] < 0x80
|
|
&& (str[1] == ' '
|
|
|| (str[1] != NUL
|
|
&& str[1] != '*'
|
|
&& str[1] != '?'
|
|
&& !vim_isfilec(str[1])));
|
|
#else
|
|
return str[0] == '\\' && str[1] != NUL;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Halve the number of backslashes in a file name argument.
|
|
* For MS-DOS we only do this if the character after the backslash
|
|
* is not a normal file character.
|
|
*/
|
|
void backslash_halve(char_u *p)
|
|
{
|
|
for (; *p; ++p)
|
|
if (rem_backslash(p))
|
|
STRMOVE(p, p + 1);
|
|
}
|
|
|
|
/*
|
|
* backslash_halve() plus save the result in allocated memory.
|
|
*/
|
|
char_u *backslash_halve_save(char_u *p)
|
|
{
|
|
char_u *res;
|
|
|
|
res = vim_strsave(p);
|
|
if (res == NULL)
|
|
return p;
|
|
backslash_halve(res);
|
|
return res;
|
|
}
|
|
|