ICU-889 add decmn tool

X-SVN-Rev: 4042
This commit is contained in:
Markus Scherer 2001-03-13 00:58:51 +00:00
parent 574623ab1a
commit 1f895aa6a9
3 changed files with 340 additions and 0 deletions

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@ -71,6 +71,9 @@ Package=<4>
Begin Project Dependency
Project_Dep_Name ustdio
End Project Dependency
Begin Project Dependency
Project_Dep_Name decmn
End Project Dependency
}}}
###############################################################################
@ -141,6 +144,18 @@ Package=<4>
###############################################################################
Project: "decmn"=..\tools\gencmn\decmn.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
}}}
###############################################################################
Project: "genccode"=..\tools\genccode\genccode.dsp - Package Owner=<4>
Package=<5>

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@ -0,0 +1,206 @@
/*
*******************************************************************************
*
* Copyright (C) 2000, International Business Machines
* Corporation and others. All Rights Reserved.
*
*******************************************************************************
* file name: decmn.c
* encoding: US-ASCII
* tab size: 8 (not used)
* indentation:4
*
* created on: 2001mar05
* created by: Markus W. Scherer
*
* This tool takes an ICU common data file (icuxyz.dat),
* outputs a list of components,
* and writes one file per packaged data piece in the common file.
* This can be used to add, remove, or replace data.
*/
#include <stdio.h>
#include <stdlib.h>
#include "unicode/utypes.h"
#include "unicode/udata.h"
static uint8_t buffer[100000], buffer2[128*1024];
static int
compareFiles(const void *file1, const void *file2) {
/* sort by file offset */
int32_t diff=*((int32_t *)file1+1)-*((int32_t *)file2+1);
if(diff!=0) {
return (int)(diff>>15)|1;
} else {
return 0;
}
}
static int
copyFile(FILE *in, int32_t offset, int32_t size, const char *name) {
FILE *out;
int32_t length;
if(0!=fseek(in, offset, SEEK_SET)) {
fprintf(stderr, "error: cannot seek to position %ld for file \"%s\"\n", offset, name);
return 4;
}
out=fopen(name, "wb");
if(out==NULL) {
fprintf(stderr, "error: unable to open output file \"%s\"\n", name);
return 5;
}
/* copy the contents into the new, separate file */
while(size>sizeof(buffer2)) {
length=(int32_t)fread(buffer2, 1, sizeof(buffer2), in);
if(length<=0) {
fprintf(stderr, "error: read error while copying output file \"%s\"\n", name);
fclose(out);
return 4;
}
if(length!=(int32_t)fwrite(buffer2, 1, length, out)) {
fprintf(stderr, "error: write error while copying output file \"%s\"\n", name);
fclose(out);
return 5;
}
size-=length;
}
while(size>0) {
length=(int32_t)fread(buffer2, 1, size, in);
if(length<=0) {
fprintf(stderr, "error: read error while copying output file \"%s\"\n", name);
fclose(out);
return 4;
}
if(length!=(int32_t)fwrite(buffer2, 1, length, out)) {
fprintf(stderr, "error: write error while copying output file \"%s\"\n", name);
fclose(out);
return 5;
}
size-=length;
}
fclose(out);
return 0;
}
extern int
main(int argc, const char *argv[]) {
FILE *in;
UDataInfo *info;
uint8_t *base;
int32_t *p;
int32_t i, length, count, baseOffset;
int result;
if(argc!=2) {
fprintf(stderr,
"usage: %s icu-data-filename\n"
" unpackages ICU common data files:\n"
" reads a memory-mappable ICU data file, outputs the list of data pieces to stdout\n"
" and writes the packaged data files as separate files in the current folder.\n",
argv[0]);
return 1;
}
in=fopen(argv[1], "rb");
if(in==NULL) {
fprintf(stderr, "error: unable to open input file \"%s\"\n", argv[1]);
return 2;
}
/* read the beginning of the file */
length=(int32_t)fread(buffer, 1, sizeof(buffer), in);
if(length<20) {
fprintf(stderr, "error: input file too short\n");
fclose(in);
return 3;
}
/* check the validity of the file */
if(buffer[2]!=0xda || buffer[3]!=0x27) {
fprintf(stderr, "error: not an ICU data file\n");
fclose(in);
return 3;
}
/* check the platform properties for the file */
info=(UDataInfo *)(buffer+4);
if(info->isBigEndian!=U_IS_BIG_ENDIAN) {
fprintf(stderr, "error: the file is in the opposite byte endianness\n");
fclose(in);
return 3;
}
if(info->charsetFamily!=U_CHARSET_FAMILY) {
fprintf(stderr, "error: the file is not built for this machine's charset family\n");
fclose(in);
return 3;
}
/* check that this is a common data file */
if(info->dataFormat[0]!=0x43 || info->dataFormat[1]!=0x6d || info->dataFormat[2]!=0x6e || info->dataFormat[3]!=0x44) {
fprintf(stderr, "error: this file is not a common data file\n");
fclose(in);
return 3;
}
/* check for version 1 */
if(info->formatVersion[0]!=1) {
fprintf(stderr, "error: the format version %d.%d.%d.%d is not known\n",
info->formatVersion[0], info->formatVersion[1], info->formatVersion[2], info->formatVersion[3]);
fclose(in);
return 3;
}
/* is there a comment? */
if(*(uint16_t *)buffer>4+info->size) {
printf("comment=%s\n", buffer+4+info->size);
}
/* output all filenames */
baseOffset=*(uint16_t *)buffer;
base=buffer+baseOffset;
p=(int32_t *)base;
count=*p++;
printf("files[%ld]\n", count);
for(i=0; i<count; ++i) {
printf("file[%ld]=%s\n", i, base+*p);
p+=2;
}
puts("endfiles");
/* sort all files by their offsets in the common file */
qsort(base+4, count, 8, compareFiles);
/* write all files except the last one */
p=(int32_t *)(base+4);
--count;
for(i=0; i<count; ++i) {
/* the size is the difference between this file's offset and the next one's */
result=copyFile(in, baseOffset+p[1], p[3]-p[1], (const char *)(base+*p));
if(result!=0) {
fclose(in);
return result;
}
p+=2;
}
/* write the last file */
if(count>=0) {
/* the size is the number of bytes to the end of the common file */
if(0!=fseek(in, 0, SEEK_END)) {
fprintf(stderr, "error: unable to seek to the end of the common file\n");
return 4;
}
result=copyFile(in, baseOffset+p[1], (int32_t)ftell(in)-baseOffset-p[1], (const char *)(base+*p));
if(result!=0) {
fclose(in);
return result;
}
}
fclose(in);
return 0;
}

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@ -0,0 +1,119 @@
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