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/**
** Textpack.cc - Convert text file to a Flex file.
**
** Written: 2/14/2002
**/
/*
* Copyright (C) 2002-2022 The Exult Team
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "Flex.h"
#include "databuf.h"
#include "exceptions.h"
#include "msgfile.h"
#include <unistd.h>
#include <cstdio>
#include <cstdlib>
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
using std::cerr;
using std::cin;
using std::cout;
using std::endl;
using std::exit;
using std::ifstream;
using std::istream;
using std::ofstream;
using std::ostream;
using std::size_t;
using std::string;
using std::vector;
/*
* Read in a Flex file where each entry is a 0-delimited text string.
*/
static void Read_flex(
const char* filename, // File to read.
vector<string>& strings // Strings are stored here.
) {
FlexFile in(filename); // May throw exception.
const int cnt = in.number_of_objects();
strings.resize(cnt);
for (int i = 0; i < cnt; i++) {
size_t len;
auto ptr = in.retrieve(i, len);
if (len) { // Not empty?
strings[i] = reinterpret_cast<char*>(ptr.get());
}
}
}
/*
* Write out a Flex file where each entry is a 0-delimited text string.
*/
static void Write_flex(
const char* filename, // File to write.
const char* title, // For the header.
vector<string>& strings // Okay if some are null.
) {
OFileDataSource out(filename); // May throw exception.
Flex_writer writer(out, title, strings.size());
for (auto& str : strings) {
if (!str.empty()) {
writer.write_object(str.c_str(), str.size() + 1);
} else {
writer.empty_object();
}
}
}
/*
* Write out text, with each line in the form "nnn:sssss", where nnn is
* the Flex entry #, and anything after the ':' is the string.
* NOTES: Null entry #'s will be skipped in the output.
* Max. text length is 1024.
*/
static void Write_text(
ostream& out,
vector<string>& strings // Strings to write.
) {
out << "# Written by Exult Textpack tool" << endl;
const int cnt = strings.size();
for (int i = 0; i < cnt; i++) {
const string& text = strings[i];
if (text.empty()) {
continue;
}
if (text.size() + 1 > 1024) {
cerr << "Text in entry " << i << " is too long" << endl;
exit(1);
}
out << i << ':' << text << endl;
}
out.flush();
}
/*
* Print usage and exit.
*/
static void Usage() {
cerr << "Usage: textpack -[x|c] flexfile [textfile]" << endl
<< " Missing [textfile] => stdin/stdout" << endl;
exit(1);
}
/*
* Create or extract from Flex files consisting of text entries.
*/
int main(int argc, char** argv) {
if (argc < 3 || argv[1][0] != '-') {
Usage(); // (Exits.)
}
char* flexname = argv[2];
vector<string> strings; // Text stored here.
switch (argv[1][1]) { // Which function?
case 'c': // Create Flex.
if (argc >= 4) { // Text filename given?
// Open as text.
IFileDataSource fin(argv[3], true);
if (!fin.good()) {
cerr << "Failed to open " << argv[3] << endl;
exit(1);
}
Text_msg_file_reader reader(fin);
reader.get_global_section_strings(strings);
if (strings.empty()) {
exit(1);
}
} else {
// Default to stdin.
IStreamDataSource fin(&cin);
Text_msg_file_reader reader(fin);
reader.get_global_section_strings(strings);
if (strings.empty()) {
exit(1);
}
}
try {
Write_flex(flexname, "Flex created by Exult", strings);
} catch (exult_exception& e) {
cerr << e.what() << endl;
exit(1);
}
break;
case 'x': // Extract to text.
try {
Read_flex(flexname, strings);
} catch (exult_exception& e) {
cerr << e.what() << endl;
exit(1);
}
if (argc >= 4) { // Text file given?
std::unique_ptr<std::ostream> pOut;
try {
pOut = U7open_out(argv[3], true);
} catch (exult_exception& e) {
cerr << e.what() << endl;
exit(1);
}
if (!pOut) {
cerr << "Failed to open " << argv[3] << endl;
exit(1);
}
auto& out = *pOut;
Write_text(out, strings);
} else {
Write_text(cout, strings);
}
break;
default:
Usage();
}
return 0;
}
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