Eighth batch for 2.20
[thirdparty/git.git] / gettext.h
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1/*
2 * Copyright (c) 2010-2011 Ævar Arnfjörð Bjarmason
3 *
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 */
8
9#ifndef GETTEXT_H
10#define GETTEXT_H
11
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12#if defined(_) || defined(Q_)
13#error "namespace conflict: '_' or 'Q_' is pre-defined?"
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14#endif
15
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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
28
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29#define FORMAT_PRESERVING(n) __attribute__((format_arg(n)))
30
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31#ifndef NO_GETTEXT
32extern void git_setup_gettext(void);
754395d3 33extern int gettext_width(const char *s);
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34#else
35static inline void git_setup_gettext(void)
36{
37}
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38static inline int gettext_width(const char *s)
39{
40 return strlen(s);
41}
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42#endif
43
bb946bba 44#ifdef GETTEXT_POISON
30955229 45extern int use_gettext_poison(void);
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46#else
47#define use_gettext_poison() 0
48#endif
49
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50static inline FORMAT_PRESERVING(1) const char *_(const char *msgid)
51{
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52 if (!*msgid)
53 return "";
5e9637c6 54 return use_gettext_poison() ? "# GETTEXT POISON #" : gettext(msgid);
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55}
56
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57static inline FORMAT_PRESERVING(1) FORMAT_PRESERVING(2)
58const char *Q_(const char *msgid, const char *plu, unsigned long n)
59{
60 if (use_gettext_poison())
61 return "# GETTEXT POISON #";
5e9637c6 62 return ngettext(msgid, plu, n);
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63}
64
65784830 65/* Mark msgid for translation but do not translate it. */
290c8e7a 66#if !USE_PARENS_AROUND_GETTEXT_N
642f85fa 67#define N_(msgid) msgid
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68#else
69/*
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").
88 */
89#define N_(msgid) (msgid)
90#endif
65784830 91
93f7d910 92const char *get_preferred_languages(void);
e8c16726 93extern int is_utf8_locale(void);
93f7d910 94
65784830 95#endif