/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_i18npool.hxx"

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sal/main.h>
#include <sal/types.h>
#include <rtl/strbuf.hxx>
#include <rtl/ustring.hxx>

using namespace ::rtl;

/* Main Procedure */

SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
{
	FILE *sfp, *cfp;

	if (argc < 3) exit(-1);

	sfp = fopen(argv[1], "rb");	// open the source file for read;
	if (sfp == NULL) 
	{
	    printf("Open the dictionary source file failed.");
	    return -1;
	}

	// create the C source file to write
	cfp = fopen(argv[2], "wb");
	if (cfp == NULL) {
	    fclose(sfp);
	    printf("Can't create the C source file.");
	    return -1;
	}

	fprintf(cfp, "/*\n");
	fprintf(cfp, " * Copyright(c) 1999 - 2000, Sun Microsystems, Inc.\n");
	fprintf(cfp, " * All Rights Reserved.\n");
	fprintf(cfp, " */\n\n");
	fprintf(cfp, "/* !!!The file is generated automatically. DONOT edit the file manually!!! */\n\n");
	fprintf(cfp, "#include <sal/types.h>\n\n");
	fprintf(cfp, "extern \"C\" {\n");

	sal_Int32 count, i, j;
	sal_Int32 lenArrayCurr = 0, lenArrayCount = 0, lenArrayLen = 0, *lenArray = NULL, charArray[0x10000];
	sal_Bool exist[0x10000];
	for (i = 0; i < 0x10000; i++) {
	    exist[i] = sal_False;
	    charArray[i] = 0;
	}

	// generate main dict. data array
	fprintf(cfp, "static const sal_Unicode dataArea[] = {");
	sal_Char str[1024];
	sal_Unicode current = 0;
	count = 0;
	while (fgets(str, 1024, sfp)) {
	    // input file is in UTF-8 encoding
	    // don't convert last new line character to Ostr.
	    OUString Ostr((const sal_Char *)str, strlen(str) - 1, RTL_TEXTENCODING_UTF8);
	    const sal_Unicode *u = Ostr.getStr();

	    sal_Int32 len = Ostr.getLength();

        i=0;
        Ostr.iterateCodePoints(&i, 1);
	    if (len == i) continue;	// skip one character word

	    if (*u != current) {
		if (*u < current)
		printf("u %x, current %x, count %d, lenArrayCount %d\n", *u, current,
		            sal::static_int_cast<int>(count), sal::static_int_cast<int>(lenArrayCount));
		current = *u;
		charArray[current] = lenArrayCount;
	    }

	    if (lenArrayLen <= lenArrayCount+1)
		lenArray = (sal_Int32*) realloc(lenArray, (lenArrayLen += 1000) * sizeof(sal_Int32));
	    lenArray[lenArrayCount++] = lenArrayCurr;

	    exist[u[0]] = sal_True;
	    for (i = 1; i < len; i++) {		// start from second character, 
		exist[u[i]] = sal_True; 	// since the first character is captured in charArray.
		lenArrayCurr++;
		if ((count++) % 0x10 == 0)
		    fprintf(cfp, "\n\t");
		fprintf(cfp, "0x%04x, ", u[i]);
	    }
	}
	lenArray[lenArrayCount++] = lenArrayCurr; // store last ending pointer
	charArray[current+1] = lenArrayCount;
	fprintf(cfp, "\n};\n");

	// generate lenArray 
	fprintf(cfp, "static const sal_Int32 lenArray[] = {\n\t");
	count = 1;
	fprintf(cfp, "0x%x, ", 0); // insert one slat for skipping 0 in index2 array.
	for (i = 0; i < lenArrayCount; i++) {
	    fprintf(cfp, "0x%lx, ", static_cast<long unsigned int>(lenArray[i]));
	    if (count == 0xf) {
		count = 0;
		fprintf(cfp, "\n\t");
	    } else count++;
	}
	fprintf(cfp, "\n};\n");

	free(lenArray);

	// generate index1 array
	fprintf (cfp, "static const sal_Int16 index1[] = {\n\t");
	sal_Int16 set[0x100];
	count = 0;
	for (i = 0; i < 0x100; i++) {
	    for (j = 0; j < 0x100; j++)
		if (charArray[(i*0x100) + j] != 0)
		    break;

	    fprintf(cfp, "0x%02x, ", set[i] = (j < 0x100 ? sal::static_int_cast<sal_Int16>(count++) : 0xff));
	    if ((i+1) % 0x10 == 0)
		fprintf (cfp, "\n\t");
	}
	fprintf (cfp, "};\n");

	// generate index2 array
	fprintf (cfp, "static const sal_Int32 index2[] = {\n\t");
	sal_Int32 prev = 0;
	for (i = 0; i < 0x100; i++) {
	    if (set[i] != 0xff) {
		for (j = 0; j < 0x100; j++) {
		    sal_Int32 k = (i*0x100) + j;
		    if (prev != 0 && charArray[k] == 0) {
			for (k++; k < 0x10000; k++)
			    if (charArray[k] != 0)
				break;
		    }
		    prev = charArray[(i*0x100) + j];
		    fprintf(
                cfp, "0x%lx, ",
                sal::static_int_cast< unsigned long >(
                    k < 0x10000 ? charArray[k] + 1 : 0));
		    if ((j+1) % 0x10 == 0)
			fprintf (cfp, "\n\t");
		}
		fprintf (cfp, "\n\t");
	    }
	}
	fprintf (cfp, "\n};\n");

	// generate existMark array
	count = 0;
	fprintf (cfp, "static const sal_uInt8 existMark[] = {\n\t");
	for (i = 0; i < 0x1FFF; i++) {
	    sal_uInt8 bit = 0;
	    for (j = 0; j < 8; j++)
		if (exist[i * 8 + j])
		    bit |= 1 << j;
	    fprintf(cfp, "0x%02x, ", bit);
	    if (count == 0xf) {
		count = 0;
		fprintf(cfp, "\n\t");
	    } else count++;
	}
	fprintf (cfp, "\n};\n");

	// create function to return arrays
	fprintf (cfp, "\tconst sal_uInt8* getExistMark() { return existMark; }\n");
	fprintf (cfp, "\tconst sal_Int16* getIndex1() { return index1; }\n");
	fprintf (cfp, "\tconst sal_Int32* getIndex2() { return index2; }\n");
	fprintf (cfp, "\tconst sal_Int32* getLenArray() { return lenArray; }\n");
	fprintf (cfp, "\tconst sal_Unicode* getDataArea() { return dataArea; }\n");
	fprintf (cfp, "}\n");

	fclose(sfp);
	fclose(cfp);

	return 0;
}	// End of main