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Commit | Line | Data |
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30955229 JN |
1 | /* |
2 | * Copyright (c) 2010 Ævar Arnfjörð Bjarmason | |
3 | */ | |
4 | ||
98750588 | 5 | #include "git-compat-util.h" |
0b027f6c | 6 | #include "abspath.h" |
32a8f510 | 7 | #include "environment.h" |
92034a9c | 8 | #include "exec-cmd.h" |
30955229 | 9 | #include "gettext.h" |
754395d3 | 10 | #include "utf8.h" |
30955229 | 11 | |
5e9637c6 | 12 | #ifndef NO_GETTEXT |
5e9637c6 | 13 | # include <libintl.h> |
090d1e84 KB |
14 | # ifdef GIT_WINDOWS_NATIVE |
15 | ||
16 | static const char *locale_charset(void) | |
17 | { | |
18 | const char *env = getenv("LC_ALL"), *dot; | |
19 | ||
20 | if (!env || !*env) | |
21 | env = getenv("LC_CTYPE"); | |
22 | if (!env || !*env) | |
23 | env = getenv("LANG"); | |
24 | ||
25 | if (!env) | |
26 | return "UTF-8"; | |
27 | ||
28 | dot = strchr(env, '.'); | |
29 | return !dot ? env : dot + 1; | |
30 | } | |
31 | ||
32 | # elif defined HAVE_LIBCHARSET_H | |
5e9637c6 ÆAB |
33 | # include <libcharset.h> |
34 | # else | |
35 | # include <langinfo.h> | |
36 | # define locale_charset() nl_langinfo(CODESET) | |
37 | # endif | |
38 | #endif | |
39 | ||
e8c16726 NTND |
40 | static const char *charset; |
41 | ||
93f7d910 JK |
42 | /* |
43 | * Guess the user's preferred languages from the value in LANGUAGE environment | |
44 | * variable and LC_MESSAGES locale category if NO_GETTEXT is not defined. | |
45 | * | |
46 | * The result can be a colon-separated list like "ko:ja:en". | |
47 | */ | |
48 | const char *get_preferred_languages(void) | |
49 | { | |
50 | const char *retval; | |
51 | ||
52 | retval = getenv("LANGUAGE"); | |
53 | if (retval && *retval) | |
54 | return retval; | |
55 | ||
56 | #ifndef NO_GETTEXT | |
57 | retval = setlocale(LC_MESSAGES, NULL); | |
58 | if (retval && *retval && | |
59 | strcmp(retval, "C") && | |
60 | strcmp(retval, "POSIX")) | |
61 | return retval; | |
62 | #endif | |
63 | ||
64 | return NULL; | |
65 | } | |
66 | ||
5e9637c6 | 67 | #ifndef NO_GETTEXT |
48ca53ca | 68 | __attribute__((format (printf, 1, 2))) |
9c0495d2 NTND |
69 | static int test_vsnprintf(const char *fmt, ...) |
70 | { | |
71 | char buf[26]; | |
72 | int ret; | |
73 | va_list ap; | |
74 | va_start(ap, fmt); | |
75 | ret = vsnprintf(buf, sizeof(buf), fmt, ap); | |
76 | va_end(ap); | |
77 | return ret; | |
78 | } | |
79 | ||
5e9637c6 ÆAB |
80 | static void init_gettext_charset(const char *domain) |
81 | { | |
5e9637c6 ÆAB |
82 | charset = locale_charset(); |
83 | bind_textdomain_codeset(domain, charset); | |
9371c0e9 ÆAB |
84 | |
85 | /* | |
86 | * Work around an old bug fixed in glibc 2.17 (released on | |
87 | * 2012-12-24), at the cost of potentially making translated | |
88 | * messages from external functions like perror() emitted in | |
89 | * the wrong encoding. | |
90 | * | |
91 | * The bug affected e.g. git.git's own 7eb93c89651 ([PATCH] | |
92 | * Simplify git script, 2005-09-07), which is the origin of | |
93 | * the "David_K\345gedal" test string. | |
94 | * | |
95 | * See a much longer comment added to this file in 5e9637c6297 | |
96 | * (i18n: add infrastructure for translating Git with gettext, | |
97 | * 2011-11-18) for more details. | |
98 | */ | |
9c0495d2 NTND |
99 | if (test_vsnprintf("%.*s", 13, "David_K\345gedal") < 0) |
100 | setlocale(LC_CTYPE, "C"); | |
5e9637c6 ÆAB |
101 | } |
102 | ||
c4137be0 JS |
103 | int git_gettext_enabled = 0; |
104 | ||
5e9637c6 ÆAB |
105 | void git_setup_gettext(void) |
106 | { | |
226c0ddd | 107 | const char *podir = getenv(GIT_TEXT_DOMAIN_DIR_ENVIRONMENT); |
0210231b | 108 | char *p = NULL; |
5e9637c6 ÆAB |
109 | |
110 | if (!podir) | |
0210231b | 111 | podir = p = system_path(GIT_LOCALE_PATH); |
226c0ddd | 112 | |
0210231b JS |
113 | if (!is_directory(podir)) { |
114 | free(p); | |
cc5e1bf9 | 115 | return; |
0210231b | 116 | } |
226c0ddd | 117 | |
5e9637c6 ÆAB |
118 | bindtextdomain("git", podir); |
119 | setlocale(LC_MESSAGES, ""); | |
aa1462cc | 120 | setlocale(LC_TIME, ""); |
5e9637c6 ÆAB |
121 | init_gettext_charset("git"); |
122 | textdomain("git"); | |
0210231b | 123 | |
c4137be0 JS |
124 | git_gettext_enabled = 1; |
125 | ||
0210231b | 126 | free(p); |
5e9637c6 | 127 | } |
754395d3 NTND |
128 | |
129 | /* return the number of columns of string 's' in current locale */ | |
130 | int gettext_width(const char *s) | |
131 | { | |
132 | static int is_utf8 = -1; | |
133 | if (is_utf8 == -1) | |
e8c16726 | 134 | is_utf8 = is_utf8_locale(); |
754395d3 NTND |
135 | |
136 | return is_utf8 ? utf8_strwidth(s) : strlen(s); | |
137 | } | |
5e9637c6 | 138 | #endif |
e8c16726 NTND |
139 | |
140 | int is_utf8_locale(void) | |
141 | { | |
142 | #ifdef NO_GETTEXT | |
143 | if (!charset) { | |
144 | const char *env = getenv("LC_ALL"); | |
145 | if (!env || !*env) | |
146 | env = getenv("LC_CTYPE"); | |
147 | if (!env || !*env) | |
148 | env = getenv("LANG"); | |
149 | if (!env) | |
150 | env = ""; | |
151 | if (strchr(env, '.')) | |
152 | env = strchr(env, '.') + 1; | |
153 | charset = xstrdup(env); | |
154 | } | |
155 | #endif | |
156 | return is_encoding_utf8(charset); | |
157 | } |