sync with girocco/v2.11.4+
[git/gitweb.git] / gettext.h
blob7eee64a34fa0a5e922606e6351b29d08cb26fe6b
1 /*
2 * Copyright (c) 2010-2011 Ævar Arnfjörð Bjarmason
4 * This is a skeleton no-op implementation of gettext for Git.
5 * You can replace it with something that uses libintl.h and wraps
6 * gettext() to try out the translations.
7 */
9 #ifndef GETTEXT_H
10 #define GETTEXT_H
12 #if defined(_) || defined(Q_)
13 #error "namespace conflict: '_' or 'Q_' is pre-defined?"
14 #endif
16 #ifndef NO_GETTEXT
17 # include <libintl.h>
18 #else
19 # ifdef gettext
20 # undef gettext
21 # endif
22 # define gettext(s) (s)
23 # ifdef ngettext
24 # undef ngettext
25 # endif
26 # define ngettext(s, p, n) ((n == 1) ? (s) : (p))
27 #endif
29 #define FORMAT_PRESERVING(n) __attribute__((format_arg(n)))
31 #ifndef NO_GETTEXT
32 extern void git_setup_gettext(void);
33 extern int gettext_width(const char *s);
34 #else
35 static inline void git_setup_gettext(void)
38 static inline int gettext_width(const char *s)
40 return strlen(s);
42 #endif
44 #ifdef GETTEXT_POISON
45 extern int use_gettext_poison(void);
46 #else
47 #define use_gettext_poison() 0
48 #endif
50 static inline FORMAT_PRESERVING(1) const char *_(const char *msgid)
52 if (!*msgid)
53 return "";
54 return use_gettext_poison() ? "# GETTEXT POISON #" : gettext(msgid);
57 static inline FORMAT_PRESERVING(1) FORMAT_PRESERVING(2)
58 const char *Q_(const char *msgid, const char *plu, unsigned long n)
60 if (use_gettext_poison())
61 return "# GETTEXT POISON #";
62 return ngettext(msgid, plu, n);
65 /* Mark msgid for translation but do not translate it. */
66 #if !USE_PARENS_AROUND_GETTEXT_N
67 #define N_(msgid) msgid
68 #else
70 * Strictly speaking, this will lead to invalid C when
71 * used this way:
72 * static const char s[] = N_("FOO");
73 * which will expand to
74 * static const char s[] = ("FOO");
75 * and in valid C, the initializer on the right hand side must
76 * be without the parentheses. But many compilers do accept it
77 * as a language extension and it will allow us to catch mistakes
78 * like:
79 * static const char *msgs[] = {
80 * N_("one")
81 * N_("two"),
82 * N_("three"),
83 * NULL
84 * };
85 * (notice the missing comma on one of the lines) by forcing
86 * a compilation error, because parenthesised ("one") ("two")
87 * will not get silently turned into ("onetwo").
89 #define N_(msgid) (msgid)
90 #endif
92 const char *get_preferred_languages(void);
93 extern int is_utf8_locale(void);
95 #endif