scuffed-code/icu4c/source/tools/gencmn/gencmn.c
2002-03-20 01:37:48 +00:00

502 lines
16 KiB
C

/*
*******************************************************************************
*
* Copyright (C) 1999-2001, International Business Machines
* Corporation and others. All Rights Reserved.
*
*******************************************************************************
* file name: gencmn.c
* encoding: US-ASCII
* tab size: 8 (not used)
* indentation:4
*
* created on: 1999nov01
* created by: Markus W. Scherer
*
* This program reads a list of data files and combines them
* into one common, memory-mappable file.
*/
#include <stdio.h>
#include <stdlib.h>
#include "unicode/utypes.h"
#include "unicode/putil.h"
#include "cmemory.h"
#include "cstring.h"
#include "filestrm.h"
#include "toolutil.h"
#include "unewdata.h"
#include "uoptions.h"
#define STRING_STORE_SIZE 100000
#define MAX_FILE_COUNT 2000
#define COMMON_DATA_NAME U_ICUDATA_NAME
#define DATA_TYPE "dat"
/* UDataInfo cf. udata.h */
static const UDataInfo dataInfo={
sizeof(UDataInfo),
0,
U_IS_BIG_ENDIAN,
U_CHARSET_FAMILY,
sizeof(UChar),
0,
{0x43, 0x6d, 0x6e, 0x44}, /* dataFormat="CmnD" */
{1, 0, 0, 0}, /* formatVersion */
{3, 0, 0, 0} /* dataVersion */
};
static uint32_t maxSize;
static char stringStore[STRING_STORE_SIZE];
static uint32_t stringTop=0, basenameTotal=0;
typedef struct {
char *pathname, *basename;
uint32_t basenameLength, basenameOffset, fileSize, fileOffset;
} File;
static File files[MAX_FILE_COUNT];
static uint32_t fileCount=0;
/* prototypes --------------------------------------------------------------- */
static void
addFile(const char *filename, UBool sourceTOC, UBool verbose);
static char *
allocString(uint32_t length);
static int
compareFiles(const void *file1, const void *file2);
/* -------------------------------------------------------------------------- */
static UOption options[]={
/*0*/ UOPTION_HELP_H,
/*1*/ UOPTION_HELP_QUESTION_MARK,
/*2*/ UOPTION_VERBOSE,
/*3*/ UOPTION_COPYRIGHT,
/*4*/ UOPTION_DESTDIR,
/*5*/ UOPTION_DEF( "comment", 'C', UOPT_REQUIRES_ARG),
/*6*/ UOPTION_DEF( "name", 'n', UOPT_REQUIRES_ARG),
/*7*/ UOPTION_DEF( "type", 't', UOPT_REQUIRES_ARG),
/*8*/ UOPTION_DEF( "source", 'S', UOPT_NO_ARG),
/*9*/ UOPTION_DEF( "entrypoint", 'e', UOPT_REQUIRES_ARG)
};
static char *symPrefix;
extern int
main(int argc, char* argv[]) {
static char buffer[4096];
char line[512];
FileStream *in, *file;
char *s;
UErrorCode errorCode=U_ZERO_ERROR;
uint32_t i, fileOffset, basenameOffset, length, nread;
UBool sourceTOC, verbose;
const char *entrypointName = NULL;
U_MAIN_INIT_ARGS(argc, argv);
/* preset then read command line options */
options[4].value=u_getDataDirectory();
options[6].value=COMMON_DATA_NAME;
options[7].value=DATA_TYPE;
argc=u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options);
/* error handling, printing usage message */
if(argc<0) {
fprintf(stderr,
"error in command line argument \"%s\"\n",
argv[-argc]);
} else if(argc<2) {
argc=-1;
}
if(argc<0 || options[0].doesOccur || options[1].doesOccur) {
FILE *where = argc < 0 ? stderr : stdout;
/*
* Broken into chucks because the C89 standard says the minimum
* required supported string length is 509 bytes.
*/
fprintf(where,
"%csage: %s [ -h, -?, --help ] [ -v, --verbose ] [ -c, --copyright ] [ -C, --comment comment ] [ -d, --destdir dir ] [ -n, --name filename ] [ -t, --type filetype ] [ -C, --source tocfile ] [ -e, --entrypoint name ] [ maxsize ] [ [ -f ] filename ]\n", argc < 0 ? 'u' : 'U', *argv);
if (argc >= 0) {
fprintf(where, "\n"
"Read the list file (default: standard input) and create a common data\n"
"file from specified files; omit any larger than maxsize.\n");
fprintf(where, "\n"
"Options: -h, -?, --help this usage text\n"
" -v, --verbose verbose output\n"
" -c, --copyright include the ICU copyright notice\n"
" -C, --comment comment include a comment string\n"
" -d, --destdir dir destination directory\n");
fprintf(where,
" -n --name filename output filename, without .type extension\n"
" defaults to " COMMON_DATA_NAME "\n"
" -t, --type filetype type of the destination file\n"
" defaults to \"" DATA_TYPE "\"\n"
" -S, --source tocfile write a .c source file with the table of contents\n"
" -e, --entrypoint name override the c entrypoint name\n"
" defaults to \"<name>_<type>\" \n"
" -r, --revision x.x Set a version (example: 20.1)\n");
}
return argc<0 ? U_ILLEGAL_ARGUMENT_ERROR : U_ZERO_ERROR;
}
sourceTOC=options[8].doesOccur;
verbose = options[2].doesOccur;
maxSize=(uint32_t)uprv_strtoul(argv[1], NULL, 0);
if(argc==2) {
in=T_FileStream_stdin();
} else {
in=T_FileStream_open(argv[2], "r");
if(in==NULL) {
fprintf(stderr, "gencmn: unable to open input file %s\n", argv[2]);
exit(U_FILE_ACCESS_ERROR);
}
}
if (verbose) {
if(sourceTOC) {
printf("generating %s_%s.c (table of contents source file)\n", options[6].value, options[7].value);
} else {
printf("generating %s.%s (common data file with table of contents)\n", options[6].value, options[7].value);
}
}
/* read the list of files and get their lengths */
while(T_FileStream_readLine(in, line, sizeof(line))!=NULL) {
/* remove trailing newline characters */
s=line;
while(*s!=0) {
if(*s=='\r' || *s=='\n') {
*s=0;
break;
}
++s;
}
/* check for comment */
if (*line == '#') {
continue;
}
/* add the file */
addFile(getLongPathname(line), sourceTOC, verbose);
}
if(in!=T_FileStream_stdin()) {
T_FileStream_close(in);
}
if(fileCount==0) {
fprintf(stderr, "gencmn: no files listed in %s\n", argc==2 ? "<stdin>" : argv[2]);
return 0;
}
/* sort the files by basename */
qsort(files, fileCount, sizeof(File), compareFiles);
if(!sourceTOC) {
UNewDataMemory *out;
/* determine the offsets of all basenames and files in this common one */
basenameOffset=4+8*fileCount;
fileOffset=(basenameOffset+(basenameTotal+15))&~0xf;
for(i=0; i<fileCount; ++i) {
files[i].fileOffset=fileOffset;
fileOffset+=(files[i].fileSize+15)&~0xf;
files[i].basenameOffset=basenameOffset;
basenameOffset+=files[i].basenameLength;
}
/* create the output file */
out=udata_create(options[4].value, options[7].value, options[6].value,
&dataInfo,
options[3].doesOccur ? U_COPYRIGHT_STRING : options[5].value,
&errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "gencmn: udata_create(-d %s -n %s -t %s) failed - %s\n",
options[4].value, options[6].value, options[7].value,
u_errorName(errorCode));
exit(errorCode);
}
/* write the table of contents */
udata_write32(out, fileCount);
for(i=0; i<fileCount; ++i) {
udata_write32(out, files[i].basenameOffset);
udata_write32(out, files[i].fileOffset);
}
/* write the basenames */
for(i=0; i<fileCount; ++i) {
udata_writeString(out, files[i].basename, files[i].basenameLength);
}
length=4+8*fileCount+basenameTotal;
/* copy the files */
for(i=0; i<fileCount; ++i) {
/* pad to 16-align the next file */
length&=0xf;
if(length!=0) {
udata_writePadding(out, 16-length);
}
if (verbose) {
printf("adding %s (%ld byte%s)\n", files[i].pathname, (long)files[i].fileSize, files[i].fileSize == 1 ? "" : "s");
}
/* copy the next file */
file=T_FileStream_open(files[i].pathname, "rb");
if(file==NULL) {
fprintf(stderr, "gencmn: unable to open listed file %s\n", files[i].pathname);
exit(U_FILE_ACCESS_ERROR);
}
for(nread = 0;;) {
length=T_FileStream_read(file, buffer, sizeof(buffer));
if(length <= 0) {
break;
}
nread += length;
udata_writeBlock(out, buffer, length);
}
T_FileStream_close(file);
length=files[i].fileSize;
if (nread != files[i].fileSize) {
fprintf(stderr, "gencmn: unable to read %s properly (got %ld/%ld byte%s)\n", files[i].pathname, (long)nread, (long)files[i].fileSize, files[i].fileSize == 1 ? "" : "s");
exit(U_FILE_ACCESS_ERROR);
}
}
/* finish */
udata_finish(out, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "gencmn: udata_finish() failed - %s\n", u_errorName(errorCode));
exit(errorCode);
}
} else {
/* write a .c source file with the table of contents */
char *filename;
FileStream *out;
/* create the output filename */
filename=s=buffer;
uprv_strcpy(filename, options[4].value);
s=filename+uprv_strlen(filename);
if(s>filename && *(s-1)!=U_FILE_SEP_CHAR) {
*s++=U_FILE_SEP_CHAR;
}
uprv_strcpy(s, options[6].value);
if(*(options[7].value)!=0) {
s+=uprv_strlen(s);
*s++='_';
uprv_strcpy(s, options[7].value);
}
s+=uprv_strlen(s);
uprv_strcpy(s, ".c");
/* open the output file */
out=T_FileStream_open(filename, "w");
if(out==NULL) {
fprintf(stderr, "gencmn: unable to open .c output file %s\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
/* If an entrypoint is specified, use it. */
if(options[9].doesOccur) {
entrypointName = options[9].value;
} else {
entrypointName = options[6].value;
}
symPrefix = (char *) uprv_malloc(uprv_strlen(entrypointName) + 2);
uprv_strcpy(symPrefix, entrypointName);
uprv_strcat(symPrefix, "_");
/* write the source file */
sprintf(buffer,
"/*\n"
" * ICU common data table of contents for %s.%s ,\n"
" * Automatically generated by icu/source/tools/gencmn/gencmn .\n"
" */\n\n"
"#include \"unicode/utypes.h\"\n"
"#include \"unicode/udata.h\"\n"
"\n"
"/* external symbol declarations for data */\n",
options[6].value, options[7].value);
T_FileStream_writeLine(out, buffer);
sprintf(buffer, "extern const char\n %s%s[]", symPrefix, files[0].pathname);
T_FileStream_writeLine(out, buffer);
for(i=1; i<fileCount; ++i) {
sprintf(buffer, ",\n %s%s[]", symPrefix, files[i].pathname);
T_FileStream_writeLine(out, buffer);
}
T_FileStream_writeLine(out, ";\n\n");
sprintf(
buffer,
"U_EXPORT const struct {\n"
" uint16_t headerSize;\n"
" uint8_t magic1, magic2;\n"
" UDataInfo info;\n"
" char padding[%lu];\n"
" uint32_t count, reserved;\n"
" struct {\n"
" const char *name;\n"
" const void *data;\n"
" } toc[%lu];\n"
"} U_EXPORT2 %s_dat = {\n"
" 32, 0xda, 0x27, {\n"
" %lu, 0,\n"
" %u, %u, %u, 0,\n"
" {0x54, 0x6f, 0x43, 0x50},\n"
" {1, 0, 0, 0},\n"
" {0, 0, 0, 0}\n"
" },\n"
" \"\", %lu, 0, {\n",
(unsigned long)32-4-sizeof(UDataInfo),
(unsigned long)fileCount,
entrypointName,
(unsigned long)sizeof(UDataInfo),
U_IS_BIG_ENDIAN,
U_CHARSET_FAMILY,
U_SIZEOF_UCHAR,
(unsigned long)fileCount
);
T_FileStream_writeLine(out, buffer);
sprintf(buffer, " { \"%s\", %s%s }", files[0].basename, symPrefix, files[0].pathname);
T_FileStream_writeLine(out, buffer);
for(i=1; i<fileCount; ++i) {
sprintf(buffer, ",\n { \"%s\", %s%s }", files[i].basename, symPrefix, files[i].pathname);
T_FileStream_writeLine(out, buffer);
}
T_FileStream_writeLine(out, "\n }\n};\n");
T_FileStream_close(out);
uprv_free(symPrefix);
}
return 0;
}
static void
addFile(const char *filename, UBool sourceTOC, UBool verbose) {
char *s;
uint32_t length;
if(fileCount==MAX_FILE_COUNT) {
fprintf(stderr, "gencmn: too many files, maximum is %d\n", MAX_FILE_COUNT);
exit(U_BUFFER_OVERFLOW_ERROR);
}
if(!sourceTOC) {
FileStream *file;
/* store the pathname */
length=uprv_strlen(filename)+1;
s=allocString(length);
uprv_memcpy(s, filename, length);
files[fileCount].pathname=s;
/* get the basename */
s=(char *)findBasename(s);
files[fileCount].basename=s;
length=uprv_strlen(s)+1;
files[fileCount].basenameLength=length;
basenameTotal+=length;
/* try to open the file */
file=T_FileStream_open(filename, "rb");
if(file==NULL) {
fprintf(stderr, "gencmn: unable to open listed file %s\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
/* get the file length */
length=T_FileStream_size(file);
if(T_FileStream_error(file) || length<=20) {
fprintf(stderr, "gencmn: unable to get length of listed file %s\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
T_FileStream_close(file);
/* do not add files that are longer than maxSize */
if(maxSize && length>maxSize) {
if (verbose) {
printf("%s ignored (size %ld > %ld)\n", filename, (long)length, (long)maxSize);
}
return;
}
files[fileCount].fileSize=length;
} else {
char *t;
/* get and store the basename */
filename=findBasename(filename);
length=uprv_strlen(filename)+1;
s=allocString(length);
uprv_memcpy(s, filename, length);
files[fileCount].basename=s;
/* turn the basename into an entry point name and store in the pathname field */
t=files[fileCount].pathname=allocString(length);
while(--length>0) {
if(*s=='.' || *s=='-') {
*t='_';
} else {
*t=*s;
}
++s;
++t;
}
*t=0;
}
++fileCount;
}
static char *
allocString(uint32_t length) {
uint32_t top=stringTop+length;
char *p;
if(top>STRING_STORE_SIZE) {
fprintf(stderr, "gencmn: out of memory\n");
exit(U_MEMORY_ALLOCATION_ERROR);
}
p=stringStore+stringTop;
stringTop=top;
return p;
}
static int
compareFiles(const void *file1, const void *file2) {
/* sort by basename */
return uprv_strcmp(((File *)file1)->basename, ((File *)file2)->basename);
}
/*
* Hey, Emacs, please set the following:
*
* Local Variables:
* indent-tabs-mode: nil
* End:
*
*/