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/*
* Convert Apple .strings file (UTF-16 BE text file) to GNU gettext .po files.
*
* Copyright 2007-2014 by Apple Inc.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more information.
*
* Usage:
*
* strings2po filename.strings filename.po
*
* Compile with:
*
* gcc -o strings2po strings2po.c
*/
#include <stdio.h>
#include <stdlib.h>
/*
* The .strings file format is simple:
*
* // comment
* "id" = "str";
*
* Both the id and str strings use standard C quoting for special characters
* like newline and the double quote character.
*/
/*
* Local functions...
*/
static int read_strings(FILE *strings, char *buffer, size_t bufsize,
char **id, char **str);
static void write_po(FILE *po, const char *what, const char *s);
/*
* main() - Convert .strings file to .po.
*/
int /* O - Exit code */
main(int argc, /* I - Number of command-line args */
char *argv[]) /* I - Command-line arguments */
{
FILE *strings, /* .strings file */
*po; /* .po file */
char iconv[1024], /* iconv command */
buffer[8192], /* Line buffer */
*id, /* ID string */
*str; /* Translation string */
int count; /* Number of messages converted */
if (argc != 3)
{
puts("Usage: strings2po filename.strings filename.po");
return (1);
}
/*
* Cheat by using iconv to convert the .strings file from UTF-16 to UTF-8
* which is what we need for the .po file (and it makes things a lot
* simpler...)
*/
snprintf(iconv, sizeof(iconv), "iconv -f utf-16 -t utf-8 '%s'", argv[1]);
if ((strings = popen(iconv, "r")) == NULL)
{
perror(argv[1]);
return (1);
}
if ((po = fopen(argv[2], "w")) == NULL)
{
perror(argv[2]);
pclose(strings);
return (1);
}
count = 0;
while (read_strings(strings, buffer, sizeof(buffer), &id, &str))
{
count ++;
write_po(po, "msgid", id);
write_po(po, "msgstr", str);
}
pclose(strings);
fclose(po);
printf("%s: %d messages.\n", argv[2], count);
return (0);
}
/*
* 'read_strings()' - Read a line from a .strings file.
*/
static int /* O - 1 on success, 0 on failure */
read_strings(FILE *strings, /* I - .strings file */
char *buffer, /* I - Line buffer */
size_t bufsize, /* I - Size of line buffer */
char **id, /* O - Pointer to ID string */
char **str) /* O - Pointer to translation string */
{
char *bufptr; /* Pointer into buffer */
while (fgets(buffer, (int)bufsize, strings))
{
if (buffer[0] != '\"')
continue;
*id = buffer + 1;
for (bufptr = buffer + 1; *bufptr && *bufptr != '\"'; bufptr ++)
if (*bufptr == '\\')
bufptr ++;
if (*bufptr != '\"')
continue;
*bufptr++ = '\0';
while (*bufptr && *bufptr != '\"')
bufptr ++;
if (!*bufptr)
continue;
bufptr ++;
*str = bufptr;
for (; *bufptr && *bufptr != '\"'; bufptr ++)
if (*bufptr == '\\')
bufptr ++;
if (*bufptr != '\"')
continue;
*bufptr = '\0';
return (1);
}
return (0);
}
/*
* 'write_po()' - Write a line to the .po file.
*/
static void
write_po(FILE *po, /* I - .po file */
const char *what, /* I - Type of string */
const char *s) /* I - String to write */
{
fprintf(po, "%s \"%s\"\n", what, s);
}