reactos/modules/rosapps/applications/devutils/txt2nls/nls.c

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/*
* PROJECT: ReactOS TXT to NLS Converter
* LICENSE: GNU General Public License Version 2.0 or any later version
* FILE: devutils/txt2nls/nls.c
* COPYRIGHT: Copyright 2016 Dmitry Chapyshev <dmitry@reactos.org>
*/
#include "precomp.h"
#define _NLS_DEBUG_PRINT
#ifdef _NLS_DEBUG_PRINT
static void
nls_print_header(NLS_FILE_HEADER *header)
{
uint32_t i;
printf("HEADER:\n");
printf("CodePage: %u\n", header->CodePage);
printf("Character size: %u\n", header->MaximumCharacterSize);
printf("Default char: 0x%02X\n", header->DefaultChar);
printf("Default unicode char: 0x%04X\n", header->UniDefaultChar);
printf("Trans default char: 0x%02X\n", header->TransUniDefaultChar);
printf("Trans default unicode char: 0x%04X\n", header->TransUniDefaultChar);
for (i = 0; i < MAXIMUM_LEADBYTES; i++)
{
printf("LeadByte[%u] = 0x%02X\n", i, header->LeadByte[i]);
}
printf("\n");
}
static void
nls_print_mb_table(uint16_t *mb_table, uint16_t uni_default_char)
{
uint32_t ch;
printf("MBTABLE:\n");
for (ch = 0; ch <= 0xFF; ch++)
{
if (mb_table[ch] != uni_default_char)
{
printf("0x%02X 0x%04X\n", (unsigned int)ch, (unsigned int)mb_table[ch]);
}
}
printf("\n");
}
static void
nls_print_wc_table(uint16_t *wc_table, uint16_t default_char, int is_dbcs)
{
uint32_t ch;
printf("WCTABLE:\n");
for (ch = 0; ch <= 0xFFFF; ch++)
{
/* DBCS code page */
if (is_dbcs)
{
uint16_t *table = (uint16_t*)wc_table;
if (table[ch] != default_char)
printf("0x%04X 0x%04X\n", (unsigned int)ch, (unsigned int)table[ch]);
}
/* SBCS code page */
else
{
uint8_t *table = (uint8_t*)wc_table;
if (table[ch] != default_char)
printf("0x%04X 0x%02X\n", (unsigned int)ch, (unsigned int)table[ch]);
}
}
printf("\n");
}
static void
nls_print_glyph_table(uint16_t *glyph_table, uint16_t uni_default_char)
{
uint32_t ch;
printf("GLYPHTABLE:\n");
for (ch = 0; ch <= 0xFF; ch++)
{
if (glyph_table[ch] != uni_default_char)
{
printf("0x%02X 0x%04X\n", (unsigned int)ch, (unsigned int)glyph_table[ch]);
}
}
printf("\n");
}
#endif /* _NLS_DEBUG_PRINT */
int
nls_from_txt(const char *txt_file_path, const char *nls_file_path)
{
NLS_FILE_HEADER header;
FILE *file = NULL;
uint16_t *mb_table = NULL;
uint16_t *wc_table = NULL;
uint16_t *glyph_table = NULL;
uint16_t number_of_lb_ranges;
uint16_t size;
int is_dbcs;
int res = 0;
memset(&header, 0, sizeof(header));
if (!txt_get_header(txt_file_path, &header))
goto Cleanup;
is_dbcs = (header.MaximumCharacterSize == 2) ? 1 : 0;
mb_table = txt_get_mb_table(txt_file_path, header.UniDefaultChar);
if (!mb_table)
goto Cleanup;
wc_table = txt_get_wc_table(txt_file_path, header.DefaultChar, is_dbcs);
if (!wc_table)
goto Cleanup;
/* GLYPHTABLE optionally. We do not leave if it is absent */
glyph_table = txt_get_glyph_table(txt_file_path, header.UniDefaultChar);
if (is_dbcs)
{
/* DBCS codepage */
uint16_t *table = (uint16_t*)wc_table;
header.TransUniDefaultChar = table[header.UniDefaultChar];
/* TODO: TransDefaultChar for DBCS codepages */
}
else
{
/* SBCS codepage */
uint8_t *table = (uint8_t*)wc_table;
header.TransUniDefaultChar = table[header.UniDefaultChar];
header.TransDefaultChar = mb_table[LOBYTE(header.DefaultChar)];
}
#ifdef _NLS_DEBUG_PRINT
nls_print_header(&header);
nls_print_mb_table(mb_table, header.UniDefaultChar);
if (glyph_table)
nls_print_glyph_table(glyph_table, header.UniDefaultChar);
nls_print_wc_table(wc_table, header.DefaultChar, is_dbcs);
#endif /* _NLS_DEBUG_PRINT */
/* Create binary file with write access */
file = fopen(nls_file_path, "wb");
if (!file)
{
printf("Unable to create NLS file.\n");
goto Cleanup;
}
/* Write NLS file header */
if (fwrite(&header, 1, sizeof(header), file) != sizeof(header))
{
printf("Unable to write NLS file.\n");
goto Cleanup;
}
size = (256 * sizeof(uint16_t)) + /* Primary CP to Unicode table */
sizeof(uint16_t) + /* optional OEM glyph table size in words */
(glyph_table ? (256 * sizeof(uint16_t)) : 0) + /* OEM glyph table size in words * sizeof(uint16_t) */
sizeof(uint16_t) + /* Number of DBCS LeadByte ranges */
0 + /* offsets of lead byte sub tables */
0 + /* LeadByte sub tables */
sizeof(uint16_t); /* Unknown flag */
size /= sizeof(uint16_t);
if (fwrite(&size, 1, sizeof(size), file) != sizeof(size))
{
printf("Unable to write NLS file.\n");
goto Cleanup;
}
/* Write multibyte table */
if (fwrite(mb_table, 1, (256 * sizeof(uint16_t)), file) != (256 * sizeof(uint16_t)))
{
printf("Unable to write NLS file.\n");
goto Cleanup;
}
/* OEM glyph table size in words */
size = (glyph_table ? 256 : 0);
if (fwrite(&size, 1, sizeof(size), file) != sizeof(size))
{
printf("Unable to write NLS file.\n");
goto Cleanup;
}
if (glyph_table)
{
/* Write OEM glyph table */
if (fwrite(glyph_table, 1, (256 * sizeof(uint16_t)), file) != (256 * sizeof(uint16_t)))
{
printf("Unable to write NLS file.\n");
goto Cleanup;
}
}
/* Number of DBCS LeadByte ranges */
number_of_lb_ranges = 0;
if (fwrite(&number_of_lb_ranges, 1, sizeof(number_of_lb_ranges), file) != sizeof(number_of_lb_ranges))
{
printf("Unable to write NLS file.\n");
goto Cleanup;
}
/* Unknown flag */
size = 0;
if (fwrite(&size, 1, sizeof(size), file) != sizeof(size))
{
printf("Unable to write NLS file.\n");
goto Cleanup;
}
/* Write wide char table */
if (fwrite(wc_table, 1, (65536 * header.MaximumCharacterSize), file) != (65536 * header.MaximumCharacterSize))
{
printf("Unable to write NLS file.\n");
goto Cleanup;
}
res = 1;
Cleanup:
if (file) fclose(file);
free(mb_table);
free(wc_table);
free(glyph_table);
return res;
}