| /* KDE format strings. |
| Copyright (C) 2003-2004, 2006-2007, 2009, 2019-2020 Free Software Foundation, Inc. |
| Written by Bruno Haible <bruno@clisp.org>, 2007. |
| |
| 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 <https://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 "xvasprintf.h" |
| #include "gettext.h" |
| |
| #define _(str) gettext (str) |
| |
| /* KDE 4 format strings are processed by method |
| KLocalizedStringPrivate::substituteSimple(string,'%',false) in |
| kde4libs-3.93.0.orig/kdecore/localization/klocalizedstring.cpp . |
| A directive |
| - starts with '%', |
| - is followed by a non-zero digit and optionally more digits. All |
| the following digits are eaten up. |
| An unterminated directive ('%' not followed by a digit or at the end) is |
| not an error. |
| %1 denotes the first argument, %2 the second argument, etc. |
| The set of used argument numbers must be of the form {1,...,n} or |
| {1,...,n} \ {m}: one of the supplied arguments may be ignored by the |
| format string. This allows the processing of singular forms (msgstr[0]). |
| Which argument may be skipped, depends on the argument types at runtime; |
| since xgettext cannot extract this info, it is considered unknown here. */ |
| |
| struct numbered_arg |
| { |
| unsigned int number; |
| }; |
| |
| struct spec |
| { |
| unsigned int directives; |
| unsigned int numbered_arg_count; |
| struct numbered_arg *numbered; |
| }; |
| |
| static int |
| numbered_arg_compare (const void *p1, const void *p2) |
| { |
| /* Subtract 1, because argument number 0 can only occur through overflow. */ |
| unsigned int n1 = ((const struct numbered_arg *) p1)->number - 1; |
| unsigned int n2 = ((const struct numbered_arg *) p2)->number - 1; |
| |
| return (n1 > n2 ? 1 : n1 < n2 ? -1 : 0); |
| } |
| |
| static void * |
| format_parse (const char *format, bool translated, char *fdi, |
| char **invalid_reason) |
| { |
| const char *const format_start = format; |
| struct spec spec; |
| unsigned int numbered_allocated; |
| struct spec *result; |
| |
| spec.directives = 0; |
| spec.numbered_arg_count = 0; |
| spec.numbered = NULL; |
| numbered_allocated = 0; |
| |
| for (; *format != '\0';) |
| if (*format++ == '%') |
| { |
| const char *dir_start = format - 1; |
| |
| if (*format > '0' && *format <= '9') |
| { |
| /* A directive. */ |
| unsigned int number; |
| |
| FDI_SET (dir_start, FMTDIR_START); |
| spec.directives++; |
| |
| number = *format - '0'; |
| while (format[1] >= '0' && format[1] <= '9') |
| { |
| number = 10 * number + (format[1] - '0'); |
| format++; |
| } |
| |
| if (numbered_allocated == spec.numbered_arg_count) |
| { |
| numbered_allocated = 2 * numbered_allocated + 1; |
| spec.numbered = (struct numbered_arg *) xrealloc (spec.numbered, numbered_allocated * sizeof (struct numbered_arg)); |
| } |
| spec.numbered[spec.numbered_arg_count].number = number; |
| spec.numbered_arg_count++; |
| |
| FDI_SET (format, FMTDIR_END); |
| |
| format++; |
| } |
| } |
| |
| /* Sort the numbered argument array, and eliminate duplicates. */ |
| if (spec.numbered_arg_count > 1) |
| { |
| unsigned int i, j; |
| |
| qsort (spec.numbered, spec.numbered_arg_count, |
| sizeof (struct numbered_arg), numbered_arg_compare); |
| |
| /* Remove duplicates: Copy from i to j, keeping 0 <= j <= i. */ |
| for (i = j = 0; i < spec.numbered_arg_count; i++) |
| if (j > 0 && spec.numbered[i].number == spec.numbered[j-1].number) |
| ; |
| else |
| { |
| if (j < i) |
| spec.numbered[j].number = spec.numbered[i].number; |
| j++; |
| } |
| spec.numbered_arg_count = j; |
| } |
| /* Now spec.numbered[i] >= i + 1 for i = 0,..,spec.numbered_arg_count-1 |
| (since the numbered argument counts are strictly increasing, considering |
| 0 as overflow). */ |
| |
| /* Verify that the argument numbers are of the form {1,...,n} or |
| {1,...,n} \ {m}. */ |
| if (spec.numbered_arg_count > 0) |
| { |
| unsigned int i; |
| |
| i = 0; |
| for (; i < spec.numbered_arg_count; i++) |
| if (spec.numbered[i].number > i + 1) |
| { |
| unsigned int first_gap = i + 1; |
| for (; i < spec.numbered_arg_count; i++) |
| if (spec.numbered[i].number > i + 2) |
| { |
| unsigned int second_gap = i + 2; |
| *invalid_reason = |
| xasprintf (_("The string refers to argument number %u but ignores the arguments %u and %u."), |
| spec.numbered[i].number, first_gap, second_gap); |
| goto bad_format; |
| } |
| break; |
| } |
| } |
| |
| result = XMALLOC (struct spec); |
| *result = spec; |
| return result; |
| |
| bad_format: |
| if (spec.numbered != NULL) |
| free (spec.numbered); |
| return NULL; |
| } |
| |
| static void |
| format_free (void *descr) |
| { |
| struct spec *spec = (struct spec *) descr; |
| |
| if (spec->numbered != NULL) |
| free (spec->numbered); |
| 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; |
| |
| if (spec1->numbered_arg_count + spec2->numbered_arg_count > 0) |
| { |
| unsigned int i, j; |
| unsigned int n1 = spec1->numbered_arg_count; |
| unsigned int n2 = spec2->numbered_arg_count; |
| unsigned int missing = 0; /* only used if !equality */ |
| |
| /* Check the argument names are the same. |
| Both arrays are sorted. We search for the first difference. */ |
| for (i = 0, j = 0; i < n1 || j < n2; ) |
| { |
| int cmp = (i >= n1 ? 1 : |
| j >= n2 ? -1 : |
| spec1->numbered[i].number > spec2->numbered[j].number ? 1 : |
| spec1->numbered[i].number < spec2->numbered[j].number ? -1 : |
| 0); |
| |
| if (cmp > 0) |
| { |
| if (error_logger) |
| error_logger (_("a format specification for argument %u, as in '%s', doesn't exist in '%s'"), |
| spec2->numbered[j].number, pretty_msgstr, |
| pretty_msgid); |
| err = true; |
| break; |
| } |
| else if (cmp < 0) |
| { |
| if (equality) |
| { |
| if (error_logger) |
| error_logger (_("a format specification for argument %u doesn't exist in '%s'"), |
| spec1->numbered[i].number, pretty_msgstr); |
| err = true; |
| break; |
| } |
| else if (missing) |
| { |
| if (error_logger) |
| error_logger (_("a format specification for arguments %u and %u doesn't exist in '%s', only one argument may be ignored"), |
| missing, spec1->numbered[i].number, |
| pretty_msgstr); |
| err = true; |
| break; |
| } |
| else |
| { |
| missing = spec1->numbered[i].number; |
| i++; |
| } |
| } |
| else |
| j++, i++; |
| } |
| } |
| |
| return err; |
| } |
| |
| |
| struct formatstring_parser formatstring_kde = |
| { |
| 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; |
| unsigned int last; |
| unsigned int i; |
| |
| if (spec == NULL) |
| { |
| printf ("INVALID"); |
| return; |
| } |
| |
| printf ("("); |
| last = 1; |
| for (i = 0; i < spec->numbered_arg_count; i++) |
| { |
| unsigned int number = spec->numbered[i].number; |
| |
| if (i > 0) |
| printf (" "); |
| if (number < last) |
| abort (); |
| for (; last < number; last++) |
| printf ("_ "); |
| last = number + 1; |
| } |
| 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../../gettext-runtime/intl -DHAVE_CONFIG_H -DTEST format-kde.c ../gnulib-lib/libgettextlib.la" |
| * End: |
| */ |
| |
| #endif /* TEST */ |
