ack/util/cpp/main.c
1987-03-09 19:15:41 +00:00

72 lines
1.4 KiB
C

/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
/* MAIN PROGRAM */
#include "file_info.h"
#include "idfsize.h"
extern struct tokenname tkidf[], tkkey[];
extern char *symbol2str();
extern char *getwdir();
extern char *inctable[];
extern int err_occurred;
int idfsize = IDFSIZE;
int ifval;
char *prog_name;
main(argc, argv)
char *argv[];
{
/* parse and interpret the command line options */
prog_name = argv[0];
init_idf();
init_pp(); /* initialise the preprocessor macros */
/* Note: source file "-" indicates that the source is supplied
as standard input. This is only allowed if INP_READ_IN_ONE is
not defined!
*/
while (argc > 1 && *argv[1] == '-' && argv[1][1] != '\0') {
char *par = &argv[1][1];
if (*par == '-')
par++;
do_option(par);
argc--, argv++;
}
compile(argc - 1, &argv[1]);
exit(err_occurred);
}
compile(argc, argv)
char *argv[];
{
register char *source = 0;
char *dummy;
switch (argc) {
case 1:
source = argv[0];
FileName = source;
break;
case 0:
FileName = "";
WorkingDir = 0;
break;
default:
fatal("use: %s [options] [source]", prog_name);
break;
}
if (!InsertFile(source, (char **) 0, &dummy)) /* read the source file */
fatal("%s: no source file %s\n", prog_name,
source ? source : "stdin");
if (source) WorkingDir = getwdir(dummy);
preprocess(source);
}