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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* This is a utility for create the translations.dat file from all the po files.
* The generated files is used by ScummVM to propose translation of its GUI.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// HACK to allow building with the SDL backend on MinGW
// see bug #1800764 "TOOLS: MinGW tools building broken"
#ifdef main
#undef main
#endif // main
#include "create_translations.h"
#include "po_parser.h"
#define TRANSLATIONS_DAT_VER 2 // 1 byte
// Padding buffer (filled with 0) used if we want to aligned writes
// static uint8 padBuf[DATAALIGNMENT];
// Utility functions
// Some of the function are very simple but are factored out so that it would require
// minor modifications if we want for example to aligne writes on 4 bytes.
void writeByte(FILE *fp, uint8 b) {
fwrite(&b, 1, 1, fp);
}
void writeUint16BE(FILE *fp, uint16 value) {
writeByte(fp, (uint8)(value >> 8));
writeByte(fp, (uint8)(value & 0xFF));
}
int stringSize(const char* string) {
// Each string is preceded by its size coded on 2 bytes
if (string == NULL)
return 2;
int len = strlen(string) + 1;
return 2 + len;
// The two lines below are an example if we want to align string writes
// pad = DATAALIGNMENT - (len + 2) % DATAALIGNMENT;
// return 2 + len + pad;
}
void writeString(FILE *fp, const char* string) {
// Each string is preceded by its size coded on 2 bytes
if (string == NULL) {
writeUint16BE(fp, 0);
return;
}
int len = strlen(string) + 1;
writeUint16BE(fp, len);
fwrite(string, len, 1, fp);
// The commented lines below are an example if we want to align string writes
// It replaces the two lines above.
// int pad = DATAALIGNMENT - (len + 2) % DATAALIGNMENT;
// writeUint16BE(fp, len + pad);
// fwrite(string, len, 1, fp);
// fwrite(padBuf, pad, 1, fp);
}
// Main
int main(int argc, char *argv[]) {
// Build the translation list
PoMessageList messageIds;
PoMessageEntryList **translations = new PoMessageEntryList*[argc - 1];
int numLangs = 0;
for (int i = 1 ; i < argc ; ++i) {
translations[numLangs] = parsePoFile(argv[i], messageIds);
if (translations[numLangs] != NULL)
++numLangs;
}
FILE *outFile;
int i, lang;
int len;
// Padding buffer initialization (filled with 0)
// used if we want to aligned writes
// for (i = 0; i < DATAALIGNMENT; i++)
// padBuf[i] = 0;
outFile = fopen("translations.dat", "wb");
// Write header
fwrite("TRANSLATIONS", 12, 1, outFile);
writeByte(outFile, TRANSLATIONS_DAT_VER);
// Write number of translations
writeUint16BE(outFile, numLangs);
// Write the length of each data block here.
// We could write it at the start of each block but that would mean that
// to go to block 4 we would have to go at the start of each preceding block,
// read its size and skip it until we arrive at the block we want.
// By having all the sizes at the start we just need to read the start of the
// file and can then skip to the block we want.
// Blocks are:
// 1. List of languages with the language name
// 2. Original messages (i.e. english)
// 3. First translation
// 4. Second translation
// ...
// Write length for translation description
len = 0;
for (lang = 0; lang < numLangs; lang++) {
len += stringSize(translations[lang]->language());
len += stringSize(translations[lang]->languageName());
}
writeUint16BE(outFile, len);
// Write size for the original language (english) block
// It starts with the number of strings coded on 2 bytes followed by each
// string (two bytes for the number of chars and the string itself).
len = 2;
for (i = 0; i < messageIds.size(); ++i)
len += stringSize(messageIds[i]);
writeUint16BE(outFile, len);
// Then comes the size of each translation block.
// It starts with the number of strings coded on 2 bytes, the charset and then the strings.
// For each string we have the string id (on two bytes) followed by
// the string size (two bytes for the number of chars and the string itself).
for (lang = 0; lang < numLangs; lang++) {
len = 2 + stringSize(translations[lang]->charset());
for (i = 0; i < translations[lang]->size(); ++i) {
len += 2 + stringSize(translations[lang]->entry(i)->msgstr);
len += stringSize(translations[lang]->entry(i)->msgctxt);
}
writeUint16BE(outFile, len);
}
// Write list of languages
for (lang = 0; lang < numLangs; lang++) {
writeString(outFile, translations[lang]->language());
writeString(outFile, translations[lang]->languageName());
}
// Write original messages
writeUint16BE(outFile, messageIds.size());
for (i = 0; i < messageIds.size(); ++i) {
writeString(outFile, messageIds[i]);
}
// Write translations
for (lang = 0; lang < numLangs; lang++) {
writeUint16BE(outFile, translations[lang]->size());
writeString(outFile, translations[lang]->charset());
for (i = 0; i < translations[lang]->size(); ++i) {
writeUint16BE(outFile, messageIds.findIndex(translations[lang]->entry(i)->msgid));
writeString(outFile, translations[lang]->entry(i)->msgstr);
writeString(outFile, translations[lang]->entry(i)->msgctxt);
}
}
fclose(outFile);
// Clean the memory
for (i = 0; i < numLangs; ++i)
delete translations[i];
delete [] translations;
return 0;
}
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