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Diffstat (limited to 'gettext-tools/src/format-qt-plural.c')
-rw-r--r-- | gettext-tools/src/format-qt-plural.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/gettext-tools/src/format-qt-plural.c b/gettext-tools/src/format-qt-plural.c new file mode 100644 index 0000000..5301d42 --- /dev/null +++ b/gettext-tools/src/format-qt-plural.c @@ -0,0 +1,194 @@ +/* Qt plural format strings. + Copyright (C) 2003-2004, 2006-2007, 2009 Free Software Foundation, Inc. + Written by Bruno Haible <bruno@clisp.org>, 2009. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdbool.h> +#include <stdlib.h> + +#include "format.h" +#include "xalloc.h" +#include "gettext.h" + +#define _(str) gettext (str) + +/* Qt plural format strings are processed by QObject::tr and are documented in + qt-x11-opensource-src-4.3.1/doc/html/qobject.html#tr. + A directive + - starts with '%', + - is optionally followed by 'L' (a no-op), + - is followed by 'n'. + Every directive is replaced by the numeric argument N passed to QObject::tr. + */ + +struct spec +{ + /* Number of format directives. */ + unsigned int directives; +}; + + +static void * +format_parse (const char *format, bool translated, char *fdi, + char **invalid_reason) +{ + const char *const format_start = format; + struct spec spec; + struct spec *result; + + spec.directives = 0; + + for (; *format != '\0';) + if (*format++ == '%') + { + const char *dir_start = format - 1; + + if (*format == 'L') + format++; + if (*format == 'n') + { + /* A directive. */ + FDI_SET (dir_start, FMTDIR_START); + spec.directives++; + FDI_SET (format, FMTDIR_END); + + format++; + } + } + + result = XMALLOC (struct spec); + *result = spec; + return result; +} + +static void +format_free (void *descr) +{ + struct spec *spec = (struct spec *) descr; + + free (spec); +} + +static int +format_get_number_of_directives (void *descr) +{ + struct spec *spec = (struct spec *) descr; + + return spec->directives; +} + +static bool +format_check (void *msgid_descr, void *msgstr_descr, bool equality, + formatstring_error_logger_t error_logger, + const char *pretty_msgid, const char *pretty_msgstr) +{ + struct spec *spec1 = (struct spec *) msgid_descr; + struct spec *spec2 = (struct spec *) msgstr_descr; + bool err = false; + + /* Check the argument is used. */ + if ((spec1->directives == 0 && spec2->directives > 0) + || (equality && spec1->directives > 0 && spec2->directives == 0)) + { + if (error_logger) + error_logger (_("number of format specifications in '%s' and '%s' does not match"), + pretty_msgid, pretty_msgstr); + err = true; + } + + return err; +} + + +struct formatstring_parser formatstring_qt_plural = +{ + format_parse, + format_free, + format_get_number_of_directives, + NULL, + format_check +}; + + +#ifdef TEST + +/* Test program: Print the argument list specification returned by + format_parse for strings read from standard input. */ + +#include <stdio.h> + +static void +format_print (void *descr) +{ + struct spec *spec = (struct spec *) descr; + + if (spec == NULL) + { + printf ("INVALID"); + return; + } + + printf ("("); + if (spec->directives > 0) + printf ("*"); + else + printf ("_"); + printf (")"); +} + +int +main () +{ + for (;;) + { + char *line = NULL; + size_t line_size = 0; + int line_len; + char *invalid_reason; + void *descr; + + line_len = getline (&line, &line_size, stdin); + if (line_len < 0) + break; + if (line_len > 0 && line[line_len - 1] == '\n') + line[--line_len] = '\0'; + + invalid_reason = NULL; + descr = format_parse (line, false, NULL, &invalid_reason); + + format_print (descr); + printf ("\n"); + if (descr == NULL) + printf ("%s\n", invalid_reason); + + free (invalid_reason); + free (line); + } + + return 0; +} + +/* + * For Emacs M-x compile + * Local Variables: + * compile-command: "/bin/sh ../libtool --tag=CC --mode=link gcc -o a.out -static -O -g -Wall -I.. -I../gnulib-lib -I../intl -DHAVE_CONFIG_H -DTEST format-qt-plural.c ../gnulib-lib/libgettextlib.la" + * End: + */ + +#endif /* TEST */ |