vim-patch:8.2.1269: language and locale code spread out (#19964)

Problem:    Language and locale code spread out.
Solution:   Move relevant code to src/locale.c. (Yegappan Lakshmanan,
            closes vim/vim#6509)
054f14bbe5

Also remove redundant <locale.h> includes.
This commit is contained in:
zeertzjq
2022-08-27 11:26:47 +08:00
committed by GitHub
parent 814c173b9d
commit 523600ea6c
10 changed files with 392 additions and 369 deletions

View File

@@ -14,11 +14,6 @@
#include "nvim/arglist.h"
#include "nvim/ascii.h"
#include "nvim/autocmd.h"
#include "nvim/globals.h"
#include "nvim/vim.h"
#ifdef HAVE_LOCALE_H
# include <locale.h>
#endif
#include "nvim/buffer.h"
#include "nvim/change.h"
#include "nvim/charset.h"
@@ -30,6 +25,7 @@
#include "nvim/ex_eval.h"
#include "nvim/ex_getln.h"
#include "nvim/fileio.h"
#include "nvim/globals.h"
#include "nvim/mark.h"
#include "nvim/mbyte.h"
#include "nvim/memory.h"
@@ -39,13 +35,13 @@
#include "nvim/ops.h"
#include "nvim/option.h"
#include "nvim/os/fs_defs.h"
#include "nvim/os/shell.h"
#include "nvim/os_unix.h"
#include "nvim/path.h"
#include "nvim/quickfix.h"
#include "nvim/runtime.h"
#include "nvim/strings.h"
#include "nvim/undo.h"
#include "nvim/vim.h"
#include "nvim/window.h"
#ifdef INCLUDE_GENERATED_DECLARATIONS
@@ -776,324 +772,6 @@ void ex_checktime(exarg_T *eap)
no_check_timestamps = save_no_check_timestamps;
}
#if defined(HAVE_LOCALE_H)
# define HAVE_GET_LOCALE_VAL
static char *get_locale_val(int what)
{
// Obtain the locale value from the libraries.
char *loc = setlocale(what, NULL);
return loc;
}
#endif
/// @return true when "lang" starts with a valid language name.
/// Rejects NULL, empty string, "C", "C.UTF-8" and others.
static bool is_valid_mess_lang(char *lang)
{
return lang != NULL && ASCII_ISALPHA(lang[0]) && ASCII_ISALPHA(lang[1]);
}
/// Obtain the current messages language. Used to set the default for
/// 'helplang'. May return NULL or an empty string.
char *get_mess_lang(void)
{
char *p;
#ifdef HAVE_GET_LOCALE_VAL
# if defined(LC_MESSAGES)
p = get_locale_val(LC_MESSAGES);
# else
// This is necessary for Win32, where LC_MESSAGES is not defined and $LANG
// may be set to the LCID number. LC_COLLATE is the best guess, LC_TIME
// and LC_MONETARY may be set differently for a Japanese working in the
// US.
p = get_locale_val(LC_COLLATE);
# endif
#else
p = os_getenv("LC_ALL");
if (!is_valid_mess_lang(p)) {
p = os_getenv("LC_MESSAGES");
if (!is_valid_mess_lang(p)) {
p = os_getenv("LANG");
}
}
#endif
return is_valid_mess_lang(p) ? p : NULL;
}
// Complicated #if; matches with where get_mess_env() is used below.
#ifdef HAVE_WORKING_LIBINTL
/// Get the language used for messages from the environment.
static char *get_mess_env(void)
{
char *p;
p = (char *)os_getenv("LC_ALL");
if (p == NULL) {
p = (char *)os_getenv("LC_MESSAGES");
if (p == NULL) {
p = (char *)os_getenv("LANG");
if (p != NULL && ascii_isdigit(*p)) {
p = NULL; // ignore something like "1043"
}
# ifdef HAVE_GET_LOCALE_VAL
if (p == NULL) {
p = get_locale_val(LC_CTYPE);
}
# endif
}
}
return p;
}
#endif
/// Set the "v:lang" variable according to the current locale setting.
/// Also do "v:lc_time"and "v:ctype".
void set_lang_var(void)
{
const char *loc;
#ifdef HAVE_GET_LOCALE_VAL
loc = get_locale_val(LC_CTYPE);
#else
// setlocale() not supported: use the default value
loc = "C";
#endif
set_vim_var_string(VV_CTYPE, loc, -1);
// When LC_MESSAGES isn't defined use the value from $LC_MESSAGES, fall
// back to LC_CTYPE if it's empty.
#ifdef HAVE_WORKING_LIBINTL
loc = get_mess_env();
#elif defined(LC_MESSAGES)
loc = get_locale_val(LC_MESSAGES);
#else
// In Windows LC_MESSAGES is not defined fallback to LC_CTYPE
loc = get_locale_val(LC_CTYPE);
#endif
set_vim_var_string(VV_LANG, loc, -1);
#ifdef HAVE_GET_LOCALE_VAL
loc = get_locale_val(LC_TIME);
#endif
set_vim_var_string(VV_LC_TIME, loc, -1);
#ifdef HAVE_GET_LOCALE_VAL
loc = get_locale_val(LC_COLLATE);
#else
// setlocale() not supported: use the default value
loc = "C";
#endif
set_vim_var_string(VV_COLLATE, loc, -1);
}
#ifdef HAVE_WORKING_LIBINTL
/// ":language": Set the language (locale).
///
/// @param eap
void ex_language(exarg_T *eap)
{
char *loc;
char *p;
char *name;
int what = LC_ALL;
char *whatstr = "";
# ifdef LC_MESSAGES
# define VIM_LC_MESSAGES LC_MESSAGES
# else
# define VIM_LC_MESSAGES 6789
# endif
name = eap->arg;
// Check for "messages {name}", "ctype {name}" or "time {name}" argument.
// Allow abbreviation, but require at least 3 characters to avoid
// confusion with a two letter language name "me" or "ct".
p = (char *)skiptowhite((char_u *)eap->arg);
if ((*p == NUL || ascii_iswhite(*p)) && p - eap->arg >= 3) {
if (STRNICMP(eap->arg, "messages", p - eap->arg) == 0) {
what = VIM_LC_MESSAGES;
name = skipwhite(p);
whatstr = "messages ";
} else if (STRNICMP(eap->arg, "ctype", p - eap->arg) == 0) {
what = LC_CTYPE;
name = skipwhite(p);
whatstr = "ctype ";
} else if (STRNICMP(eap->arg, "time", p - eap->arg) == 0) {
what = LC_TIME;
name = skipwhite(p);
whatstr = "time ";
} else if (STRNICMP(eap->arg, "collate", p - eap->arg) == 0) {
what = LC_COLLATE;
name = skipwhite(p);
whatstr = "collate ";
}
}
if (*name == NUL) {
if (what == VIM_LC_MESSAGES) {
p = get_mess_env();
} else {
p = setlocale(what, NULL);
}
if (p == NULL || *p == NUL) {
p = "Unknown";
}
smsg(_("Current %slanguage: \"%s\""), whatstr, p);
} else {
# ifndef LC_MESSAGES
if (what == VIM_LC_MESSAGES) {
loc = "";
} else {
# endif
loc = setlocale(what, name);
# ifdef LC_NUMERIC
// Make sure strtod() uses a decimal point, not a comma.
setlocale(LC_NUMERIC, "C");
# endif
# ifndef LC_MESSAGES
}
# endif
if (loc == NULL) {
semsg(_("E197: Cannot set language to \"%s\""), name);
} else {
# ifdef HAVE_NL_MSG_CAT_CNTR
// Need to do this for GNU gettext, otherwise cached translations
// will be used again.
extern int _nl_msg_cat_cntr;
_nl_msg_cat_cntr++;
# endif
// Reset $LC_ALL, otherwise it would overrule everything.
os_setenv("LC_ALL", "", 1);
if (what != LC_TIME && what != LC_COLLATE) {
// Tell gettext() what to translate to. It apparently doesn't
// use the currently effective locale.
if (what == LC_ALL) {
os_setenv("LANG", name, 1);
// Clear $LANGUAGE because GNU gettext uses it.
os_setenv("LANGUAGE", "", 1);
}
if (what != LC_CTYPE) {
os_setenv("LC_MESSAGES", name, 1);
set_helplang_default(name);
}
}
// Set v:lang, v:lc_time, v:collate and v:ctype to the final result.
set_lang_var();
maketitle();
}
}
}
static char **locales = NULL; // Array of all available locales
# ifndef WIN32
static bool did_init_locales = false;
/// @return an array of strings for all available locales + NULL for the
/// last element or,
/// NULL in case of error.
static char **find_locales(void)
{
garray_T locales_ga;
char *loc;
char *saveptr = NULL;
// Find all available locales by running command "locale -a". If this
// doesn't work we won't have completion.
char *locale_a = (char *)get_cmd_output((char_u *)"locale -a", NULL,
kShellOptSilent, NULL);
if (locale_a == NULL) {
return NULL;
}
ga_init(&locales_ga, sizeof(char_u *), 20);
// Transform locale_a string where each locale is separated by "\n"
// into an array of locale strings.
loc = os_strtok(locale_a, "\n", &saveptr);
while (loc != NULL) {
loc = xstrdup(loc);
GA_APPEND(char *, &locales_ga, loc);
loc = os_strtok(NULL, "\n", &saveptr);
}
xfree(locale_a);
// Guarantee that .ga_data is NULL terminated
ga_grow(&locales_ga, 1);
((char_u **)locales_ga.ga_data)[locales_ga.ga_len] = NULL;
return locales_ga.ga_data;
}
# endif
/// Lazy initialization of all available locales.
static void init_locales(void)
{
# ifndef WIN32
if (!did_init_locales) {
did_init_locales = true;
locales = find_locales();
}
# endif
}
# if defined(EXITFREE)
void free_locales(void)
{
int i;
if (locales != NULL) {
for (i = 0; locales[i] != NULL; i++) {
xfree(locales[i]);
}
XFREE_CLEAR(locales);
}
}
# endif
/// Function given to ExpandGeneric() to obtain the possible arguments of the
/// ":language" command.
char *get_lang_arg(expand_T *xp, int idx)
{
if (idx == 0) {
return "messages";
}
if (idx == 1) {
return "ctype";
}
if (idx == 2) {
return "time";
}
if (idx == 3) {
return "collate";
}
init_locales();
if (locales == NULL) {
return NULL;
}
return locales[idx - 4];
}
/// Function given to ExpandGeneric() to obtain the available locales.
char *get_locales(expand_T *xp, int idx)
{
init_locales();
if (locales == NULL) {
return NULL;
}
return locales[idx];
}
#endif
static void script_host_execute(char *name, exarg_T *eap)
{
size_t len;