256 lines
7.1 KiB
C
256 lines
7.1 KiB
C
|
|
/***********************************************************
|
|
Copyright 1990, by Alfalfa Software Incorporated, Cambridge, Massachusetts.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that Alfalfa's name not be used in
|
|
advertising or publicity pertaining to distribution of the software
|
|
without specific, written prior permission.
|
|
|
|
ALPHALPHA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
ALPHALPHA BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
|
|
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
|
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
|
|
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
|
SOFTWARE.
|
|
|
|
If you make any modifications, bugfixes or other changes to this software
|
|
we'd appreciate it if you could send a copy to us so we can keep things
|
|
up-to-date. Many thanks.
|
|
Kee Hinckley
|
|
Alfalfa Software, Inc.
|
|
267 Allston St., #3
|
|
Cambridge, MA 02139 USA
|
|
nazgul@alfalfa.com
|
|
|
|
******************************************************************/
|
|
|
|
/* Edit History
|
|
|
|
01/18/91 3 hamilton #if not reparsed
|
|
01/12/91 2 schulert conditionally use prototypes
|
|
12/23/90 2 hamilton Fix fd == NULL to fd < 0
|
|
11/03/90 1 hamilton Alphalpha->Alfalfa & OmegaMail->Poste
|
|
08/13/90 1 schulert move from ua to omu
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#ifdef SYSV
|
|
#include <sys/fcntl.h>
|
|
#define L_SET SEEK_SET
|
|
#define L_INCR SEEK_CUR
|
|
#endif
|
|
#include <sys/file.h>
|
|
#include <sys/stat.h>
|
|
#include "gencat.h"
|
|
|
|
/*
|
|
* The spec says the syntax is "gencat catfile msgfile...".
|
|
* We extend it to:
|
|
* gencat [-lang C|C++|ANSIC] catfile msgfile [-h <header-file>]...
|
|
* Flags are order dependant, we'll take whatever lang was most recently chosen
|
|
* and use it to generate the next header file. The header files are generated
|
|
* at the point in the command line they are listed. Thus the sequence:
|
|
* gencat -lang C foo.cat foo.mcs -h foo.h -lang C++ bar.mcs -h bar.H
|
|
* will put constants from foo.mcs into foo.h and constants from bar.mcs into
|
|
* bar.h. Constants are not saved in the catalog file, so nothing will come
|
|
* from that, even if things have been defined before. The constants in foo.h
|
|
* will be in C syntax, in bar.H in C++ syntax.
|
|
*/
|
|
|
|
#if ANSI_C || defined(__cplusplus)
|
|
# define P_(x) x
|
|
#else
|
|
# define P_(x) /**/
|
|
#endif
|
|
|
|
static void writeIfChanged P_((char *fname, int lang, int orConsts));
|
|
|
|
#undef P_
|
|
|
|
void usage() {
|
|
fprintf(stderr, "Use: gencat [-new] [-or] [-lang C|C++|ANSIC]\n");
|
|
fprintf(stderr, " catfile msgfile [-h <header-file>]...\n");
|
|
}
|
|
|
|
void main(
|
|
#if ANSI_C || defined(__cplusplus)
|
|
int argc, char *argv[])
|
|
#else
|
|
argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
#endif
|
|
{
|
|
int ofd, ifd, i;
|
|
FILE *fptr;
|
|
char *catfile = NULL;
|
|
char *input = NULL;
|
|
int lang = MCLangC;
|
|
int new = False;
|
|
int orConsts = False;
|
|
|
|
for (i = 1; i < argc; ++i) {
|
|
if (argv[i][0] == '-') {
|
|
if (strcmp(argv[i], "-lang") == 0) {
|
|
++i;
|
|
if (strcmp(argv[i], "C") == 0) lang = MCLangC;
|
|
else if (strcmp(argv[i], "C++") == 0) lang = MCLangCPlusPlus;
|
|
else if (strcmp(argv[i], "ANSIC") == 0) lang = MCLangANSIC;
|
|
else {
|
|
fprintf(stderr, "gencat: Unrecognized language: %s\n", argv[i]);
|
|
exit(1);
|
|
}
|
|
} else if (strcmp(argv[i], "-h") == 0) {
|
|
if (!input) {
|
|
fprintf(stderr, "gencat: Can't write to a header before reading something.\n");
|
|
exit(1);
|
|
}
|
|
++i;
|
|
writeIfChanged(argv[i], lang, orConsts);
|
|
} else if (strcmp(argv[i], "-new") == 0) {
|
|
if (catfile) {
|
|
fprintf(stderr, "gencat: You must specify -new before the catalog file name\n");
|
|
exit(1);
|
|
}
|
|
new = True;
|
|
} else if (strcmp(argv[i], "-or") == 0) {
|
|
orConsts = ~orConsts;
|
|
} else {
|
|
usage();
|
|
exit(1);
|
|
}
|
|
} else {
|
|
if (!catfile) {
|
|
catfile = argv[i];
|
|
if (new) {
|
|
if ((ofd = open(catfile, O_WRONLY|O_TRUNC|O_CREAT, 0666)) < 0) {
|
|
fprintf(stderr, "gencat: Unable to create a new %s.\n", catfile);
|
|
exit(1);
|
|
}
|
|
} else if ((ofd = open(catfile, O_RDONLY)) < 0) {
|
|
if ((ofd = open(catfile, O_WRONLY|O_CREAT, 0666)) < 0) {
|
|
fprintf(stderr, "gencat: Unable to create %s.\n", catfile);
|
|
exit(1);
|
|
}
|
|
} else {
|
|
MCReadCat(ofd);
|
|
close(ofd);
|
|
if ((ofd = open(catfile, O_WRONLY|O_TRUNC)) < 0) {
|
|
fprintf(stderr, "gencat: Unable to truncate %s.\n", catfile);
|
|
exit(1);
|
|
}
|
|
}
|
|
} else {
|
|
input = argv[i];
|
|
if ((ifd = open(input, O_RDONLY)) < 0) {
|
|
fprintf(stderr, "gencat: Unable to read %s\n", input);
|
|
exit(1);
|
|
}
|
|
MCParse(ifd);
|
|
close(ifd);
|
|
}
|
|
}
|
|
}
|
|
if (catfile) {
|
|
MCWriteCat(ofd);
|
|
exit(0);
|
|
} else {
|
|
usage();
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
static void writeIfChanged(
|
|
#if ANSI_C || defined(__cplusplus)
|
|
char *fname, int lang, int orConsts)
|
|
#else
|
|
fname, lang, orConsts)
|
|
char *fname;
|
|
int lang;
|
|
int orConsts;
|
|
#endif
|
|
{
|
|
char tmpname[32];
|
|
char buf[BUFSIZ], tbuf[BUFSIZ], *cptr, *tptr;
|
|
int fd, tfd;
|
|
int diff = False;
|
|
int c, len, tlen;
|
|
struct stat sbuf;
|
|
|
|
/* If it doesn't exist, just create it */
|
|
if (stat(fname, &sbuf)) {
|
|
if ((fd = open(fname, O_WRONLY|O_CREAT, 0666)) < 0) {
|
|
fprintf(stderr, "gencat: Unable to create header file %s.\n", fname);
|
|
exit(1);
|
|
}
|
|
MCWriteConst(fd, lang, orConsts);
|
|
close(fd);
|
|
return;
|
|
}
|
|
|
|
/* If it does exist, create a temp file for now */
|
|
sprintf(tmpname, "/tmp/gencat.%d", (int) getpid());
|
|
if ((tfd = open(tmpname, O_RDWR|O_CREAT, 0666)) < 0) {
|
|
fprintf(stderr, "gencat: Unable to open temporary file: %s\n", tmpname);
|
|
exit(1);
|
|
}
|
|
unlink(tmpname);
|
|
|
|
/* Write to the temp file and rewind */
|
|
MCWriteConst(tfd, lang, orConsts);
|
|
|
|
/* Open the real header file */
|
|
if ((fd = open(fname, O_RDONLY)) < 0) {
|
|
fprintf(stderr, "gencat: Unable to read header file: %s\n", fname);
|
|
exit(1);
|
|
}
|
|
|
|
/* Backup to the start of the temp file */
|
|
if (lseek(tfd, 0L, L_SET) < 0) {
|
|
fprintf(stderr, "gencat: Unable to seek in tempfile: %s\n", tmpname);
|
|
exit(1);
|
|
}
|
|
|
|
/* Now compare them */
|
|
while ((tlen = read(tfd, tbuf, BUFSIZ)) > 0) {
|
|
if ((len = read(fd, buf, BUFSIZ)) != tlen) {
|
|
diff = True;
|
|
goto done;
|
|
}
|
|
for (cptr = buf, tptr = tbuf; cptr < buf+len; ++cptr, ++tptr) {
|
|
if (*tptr != *cptr) {
|
|
diff = True;
|
|
goto done;
|
|
}
|
|
}
|
|
}
|
|
done:
|
|
if (diff) {
|
|
if (lseek(tfd, 0L, L_SET) < 0) {
|
|
fprintf(stderr, "gencat: Unable to seek in tempfile: %s\n", tmpname);
|
|
exit(1);
|
|
}
|
|
close(fd);
|
|
if ((fd = open(fname, O_WRONLY|O_TRUNC)) < 0) {
|
|
fprintf(stderr, "gencat: Unable to truncate header file: %s\n", fname);
|
|
exit(1);
|
|
}
|
|
while ((len = read(tfd, buf, BUFSIZ)) > 0) {
|
|
if (write(fd, buf, len) != len) {
|
|
fprintf(stderr, "gencat: Error writing to header file: %s\n", fname);
|
|
}
|
|
}
|
|
}
|
|
close(fd);
|
|
close(tfd);
|
|
}
|