# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1305822400 -7200
# Node ID b0190e93e601f9061a797689a1eb95a86805f769
# Parent  d9e5f15a6a361110d6c7015d5dac854e935b1470
updated for version 7.3.198
Problem:    No completion for ":lang".
Solution:   Get locales to complete from. (Dominique Pelle)

diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -911,6 +911,7 @@ eval_clear()
     hash_clear(&compat_hashtab);
 
     free_scriptnames();
+    free_locales();
 
     /* global variables */
     vars_clear(&globvarht);
diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -1476,7 +1476,7 @@ browse_save_fname(buf)
 #endif
 
 /*
- * Ask the user what to do when abondoning a changed buffer.
+ * Ask the user what to do when abandoning a changed buffer.
  * Must check 'write' option first!
  */
     void
@@ -4153,6 +4153,82 @@ ex_language(eap)
 }
 
 # if defined(FEAT_CMDL_COMPL) || defined(PROTO)
+
+static char_u	**locales = NULL;	/* Array of all available locales */
+static int	did_init_locales = FALSE;
+
+static void init_locales __ARGS((void));
+static char_u **find_locales __ARGS((void));
+
+/*
+ * Lazy initialization of all available locales.
+ */
+    static void
+init_locales()
+{
+    if (!did_init_locales)
+    {
+	did_init_locales = TRUE;
+	locales = find_locales();
+    }
+}
+
+/* Return an array of strings for all available locales + NULL for the
+ * last element.  Return NULL in case of error. */
+    static char_u **
+find_locales()
+{
+    garray_T	locales_ga;
+    char_u	*loc;
+
+    /* Find all available locales by running command "locale -a".  If this
+     * doesn't work we won't have completion. */
+    char_u *locale_a = get_cmd_output((char_u *)"locale -a",
+							NULL, SHELL_SILENT);
+    if (locale_a == NULL)
+	return NULL;
+    ga_init2(&locales_ga, sizeof(char_u *), 20);
+
+    /* Transform locale_a string where each locale is separated by "\n"
+     * into an array of locale strings. */
+    loc = (char_u *)strtok((char *)locale_a, "\n");
+
+    while (loc != NULL)
+    {
+	if (ga_grow(&locales_ga, 1) == FAIL)
+	    break;
+	loc = vim_strsave(loc);
+	if (loc == NULL)
+	    break;
+
+	((char_u **)locales_ga.ga_data)[locales_ga.ga_len++] = loc;
+	loc = (char_u *)strtok(NULL, "\n");
+    }
+    vim_free(locale_a);
+    if (ga_grow(&locales_ga, 1) == FAIL)
+    {
+	ga_clear(&locales_ga);
+	return NULL;
+    }
+    ((char_u **)locales_ga.ga_data)[locales_ga.ga_len] = NULL;
+    return (char_u **)locales_ga.ga_data;
+}
+
+#  if defined(EXITFREE) || defined(PROTO)
+    void
+free_locales()
+{
+    int			i;
+    if (locales != NULL)
+    {
+	for (i = 0; locales[i] != NULL; i++)
+	    vim_free(locales[i]);
+	vim_free(locales);
+	locales = NULL;
+    }
+}
+#  endif
+
 /*
  * Function given to ExpandGeneric() to obtain the possible arguments of the
  * ":language" command.
@@ -4168,7 +4244,25 @@ get_lang_arg(xp, idx)
 	return (char_u *)"ctype";
     if (idx == 2)
 	return (char_u *)"time";
-    return NULL;
+
+    init_locales();
+    if (locales == NULL)
+	return NULL;
+    return locales[idx - 3];
+}
+
+/*
+ * Function given to ExpandGeneric() to obtain the available locales.
+ */
+    char_u *
+get_locales(xp, idx)
+    expand_T	*xp UNUSED;
+    int		idx;
+{
+    init_locales();
+    if (locales == NULL)
+	return NULL;
+    return locales[idx];
 }
 # endif
 
diff --git a/src/ex_getln.c b/src/ex_getln.c
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -4571,48 +4571,50 @@ ExpandFromContext(xp, pat, num_file, fil
 	    int		context;
 	    char_u	*((*func)__ARGS((expand_T *, int)));
 	    int		ic;
+	    int		escaped;
 	} tab[] =
 	{
-	    {EXPAND_COMMANDS, get_command_name, FALSE},
-	    {EXPAND_BEHAVE, get_behave_arg, TRUE},
+	    {EXPAND_COMMANDS, get_command_name, FALSE, TRUE},
+	    {EXPAND_BEHAVE, get_behave_arg, TRUE, TRUE},
 #ifdef FEAT_USR_CMDS
-	    {EXPAND_USER_COMMANDS, get_user_commands, FALSE},
-	    {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE},
-	    {EXPAND_USER_NARGS, get_user_cmd_nargs, FALSE},
-	    {EXPAND_USER_COMPLETE, get_user_cmd_complete, FALSE},
+	    {EXPAND_USER_COMMANDS, get_user_commands, FALSE, TRUE},
+	    {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE, TRUE},
+	    {EXPAND_USER_NARGS, get_user_cmd_nargs, FALSE, TRUE},
+	    {EXPAND_USER_COMPLETE, get_user_cmd_complete, FALSE, TRUE},
 #endif
 #ifdef FEAT_EVAL
-	    {EXPAND_USER_VARS, get_user_var_name, FALSE},
-	    {EXPAND_FUNCTIONS, get_function_name, FALSE},
-	    {EXPAND_USER_FUNC, get_user_func_name, FALSE},
-	    {EXPAND_EXPRESSION, get_expr_name, FALSE},
+	    {EXPAND_USER_VARS, get_user_var_name, FALSE, TRUE},
+	    {EXPAND_FUNCTIONS, get_function_name, FALSE, TRUE},
+	    {EXPAND_USER_FUNC, get_user_func_name, FALSE, TRUE},
+	    {EXPAND_EXPRESSION, get_expr_name, FALSE, TRUE},
 #endif
 #ifdef FEAT_MENU
-	    {EXPAND_MENUS, get_menu_name, FALSE},
-	    {EXPAND_MENUNAMES, get_menu_names, FALSE},
+	    {EXPAND_MENUS, get_menu_name, FALSE, TRUE},
+	    {EXPAND_MENUNAMES, get_menu_names, FALSE, TRUE},
 #endif
 #ifdef FEAT_SYN_HL
-	    {EXPAND_SYNTAX, get_syntax_name, TRUE},
-#endif
-	    {EXPAND_HIGHLIGHT, get_highlight_name, TRUE},
+	    {EXPAND_SYNTAX, get_syntax_name, TRUE, TRUE},
+#endif
+	    {EXPAND_HIGHLIGHT, get_highlight_name, TRUE, TRUE},
 #ifdef FEAT_AUTOCMD
-	    {EXPAND_EVENTS, get_event_name, TRUE},
-	    {EXPAND_AUGROUP, get_augroup_name, TRUE},
+	    {EXPAND_EVENTS, get_event_name, TRUE, TRUE},
+	    {EXPAND_AUGROUP, get_augroup_name, TRUE, TRUE},
 #endif
 #ifdef FEAT_CSCOPE
-	    {EXPAND_CSCOPE, get_cscope_name, TRUE},
+	    {EXPAND_CSCOPE, get_cscope_name, TRUE, TRUE},
 #endif
 #ifdef FEAT_SIGNS
-	    {EXPAND_SIGN, get_sign_name, TRUE},
+	    {EXPAND_SIGN, get_sign_name, TRUE, TRUE},
 #endif
 #ifdef FEAT_PROFILE
-	    {EXPAND_PROFILE, get_profile_name, TRUE},
+	    {EXPAND_PROFILE, get_profile_name, TRUE, TRUE},
 #endif
 #if (defined(HAVE_LOCALE_H) || defined(X_LOCALE)) \
 	&& (defined(FEAT_GETTEXT) || defined(FEAT_MBYTE))
-	    {EXPAND_LANGUAGE, get_lang_arg, TRUE},
-#endif
-	    {EXPAND_ENV_VARS, get_env_name, TRUE},
+	    {EXPAND_LANGUAGE, get_lang_arg, TRUE, FALSE},
+	    {EXPAND_LOCALES, get_locales, TRUE, FALSE},
+#endif
+	    {EXPAND_ENV_VARS, get_env_name, TRUE, TRUE},
 	};
 	int	i;
 
@@ -4626,7 +4628,8 @@ ExpandFromContext(xp, pat, num_file, fil
 	    {
 		if (tab[i].ic)
 		    regmatch.rm_ic = TRUE;
-		ret = ExpandGeneric(xp, &regmatch, num_file, file, tab[i].func);
+		ret = ExpandGeneric(xp, &regmatch, num_file, file,
+                                                tab[i].func, tab[i].escaped);
 		break;
 	    }
     }
@@ -4648,13 +4651,14 @@ ExpandFromContext(xp, pat, num_file, fil
  * Returns OK when no problems encountered, FAIL for error (out of memory).
  */
     int
-ExpandGeneric(xp, regmatch, num_file, file, func)
+ExpandGeneric(xp, regmatch, num_file, file, func, escaped)
     expand_T	*xp;
     regmatch_T	*regmatch;
     int		*num_file;
     char_u	***file;
     char_u	*((*func)__ARGS((expand_T *, int)));
 					  /* returns a string from the list */
+    int		escaped;
 {
     int		i;
     int		count = 0;
@@ -4679,7 +4683,10 @@ ExpandGeneric(xp, regmatch, num_file, fi
 	    {
 		if (round)
 		{
-		    str = vim_strsave_escaped(str, (char_u *)" \t\\.");
+		    if (escaped)
+			str = vim_strsave_escaped(str, (char_u *)" \t\\.");
+		    else
+			str = vim_strsave(str);
 		    (*file)[count] = str;
 #ifdef FEAT_MENU
 		    if (func == get_menu_names && str != NULL)
diff --git a/src/proto/ex_cmds2.pro b/src/proto/ex_cmds2.pro
--- a/src/proto/ex_cmds2.pro
+++ b/src/proto/ex_cmds2.pro
@@ -83,5 +83,7 @@ void ex_checktime __ARGS((exarg_T *eap))
 char_u *get_mess_lang __ARGS((void));
 void set_lang_var __ARGS((void));
 void ex_language __ARGS((exarg_T *eap));
+void free_locales __ARGS((void));
 char_u *get_lang_arg __ARGS((expand_T *xp, int idx));
+char_u *get_locales __ARGS((expand_T *xp, int idx));
 /* vim: set ft=c : */
diff --git a/src/proto/ex_getln.pro b/src/proto/ex_getln.pro
--- a/src/proto/ex_getln.pro
+++ b/src/proto/ex_getln.pro
@@ -31,7 +31,7 @@ char_u *sm_gettail __ARGS((char_u *s));
 char_u *addstar __ARGS((char_u *fname, int len, int context));
 void set_cmd_context __ARGS((expand_T *xp, char_u *str, int len, int col));
 int expand_cmdline __ARGS((expand_T *xp, char_u *str, int col, int *matchcount, char_u ***matches));
-int ExpandGeneric __ARGS((expand_T *xp, regmatch_T *regmatch, int *num_file, char_u ***file, char_u *((*func)(expand_T *, int))));
+int ExpandGeneric __ARGS((expand_T *xp, regmatch_T *regmatch, int *num_file, char_u ***file, char_u *((*func)(expand_T *, int)), int escaped));
 char_u *globpath __ARGS((char_u *path, char_u *file, int expand_options));
 void init_history __ARGS((void));
 int get_histtype __ARGS((char_u *name));
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -710,6 +710,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    198,
+/**/
     197,
 /**/
     196,
diff --git a/src/vim.h b/src/vim.h
--- a/src/vim.h
+++ b/src/vim.h
@@ -779,6 +779,7 @@ extern char *(*dyn_libintl_textdomain)(c
 #define EXPAND_FILETYPE		37
 #define EXPAND_FILES_IN_PATH	38
 #define EXPAND_OWNSYNTAX	39
+#define EXPAND_LOCALES		40
 
 /* Values for exmode_active (0 is no exmode) */
 #define EXMODE_NORMAL		1