6d80565b1b
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22945 a1c6a512-1295-4272-9138-f99709370657
124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Daniel Stenberg
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <file.h>
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#include "language.h"
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#include "lang.h"
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#include "debug.h"
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#include "string.h"
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/* The following header is generated by the build system and only defines
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MAX_LANGUAGE_SIZE to be the size of the largest currently available
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language! */
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#include "max_language_size.h"
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/* These defines must match the initial bytes in the binary lang file */
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/* See tools/genlang (TODO: Use common include for both) */
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#define LANGUAGE_COOKIE 0x1a
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#define LANGUAGE_VERSION 0x05
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#define LANGUAGE_FLAG_RTL 0x01
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#define HEADER_SIZE 4
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static unsigned char language_buffer[MAX_LANGUAGE_SIZE];
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void lang_init(void)
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{
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int i;
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unsigned char *ptr = (unsigned char *) language_builtin;
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for (i = 0; i < LANG_LAST_INDEX_IN_ARRAY; i++) {
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language_strings[i] = ptr;
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ptr += strlen((char *)ptr) + 1; /* advance pointer to next string */
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}
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}
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static unsigned char lang_options = 0;
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int lang_is_rtl(void)
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{
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return (lang_options & LANGUAGE_FLAG_RTL) != 0;
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}
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int lang_load(const char *filename)
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{
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int fsize;
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int fd = open(filename, O_RDONLY);
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int retcode=0;
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unsigned char lang_header[HEADER_SIZE];
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if(fd < 0)
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return 1;
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fsize = filesize(fd) - HEADER_SIZE;
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if(fsize <= MAX_LANGUAGE_SIZE) {
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read(fd, lang_header, HEADER_SIZE);
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if((lang_header[0] == LANGUAGE_COOKIE) &&
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(lang_header[1] == LANGUAGE_VERSION) &&
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(lang_header[2] == TARGET_ID)) {
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read(fd, language_buffer, MAX_LANGUAGE_SIZE);
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unsigned char *ptr = language_buffer;
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int id;
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lang_init(); /* initialize with builtin */
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while(fsize>3) {
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id = (ptr[0]<<8) | ptr[1]; /* get two-byte id */
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ptr+=2; /* pass the id */
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if(id < LANG_LAST_INDEX_IN_ARRAY) {
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#if 0
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DEBUGF("%2x New: %30s ", id, ptr);
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DEBUGF("Replaces: %s\n", language_strings[id]);
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#endif
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language_strings[id] = ptr; /* point to this string */
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}
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while(*ptr) { /* pass the string */
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fsize--;
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ptr++;
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}
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fsize-=3; /* the id and the terminating zero */
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ptr++; /* pass the terminating zero-byte */
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}
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}
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else {
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DEBUGF("Illegal language file\n");
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retcode = 2;
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}
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}
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else {
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DEBUGF("Language %s too large: %d\n", filename, fsize);
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retcode = 3;
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}
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close(fd);
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lang_options = (retcode ? 0 : lang_header[3]);
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return retcode;
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}
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int lang_english_to_id(const char* english)
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{
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int i;
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unsigned char *ptr = (unsigned char *) language_builtin;
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for (i = 0; i < LANG_LAST_INDEX_IN_ARRAY; i++) {
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if (!strcmp(ptr, english))
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return i;
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ptr += strlen((char *)ptr) + 1; /* advance pointer to next string */
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}
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return -1;
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}
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