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/*
*
* Copyright 1986, 1987 by MIT Student Information Processing Board
* For copyright info, see "Copyright.SIPB".
*
* $Id: compile_et.c,v 1.2 1994/07/19 19:21:24 g89r4222 Exp $
*/
#include <stdio.h>
#include <sys/file.h>
#include <strings.h>
#include <sys/param.h>
static char copyright[] = "Copyright 1987 by MIT Student Information Processing Board";
extern char *gensym();
extern char *current_token;
extern int table_number, current;
char buffer[BUFSIZ];
char *table_name = (char *)NULL;
FILE *hfile, *cfile;
/* C library */
extern char *malloc();
extern int errno;
/* lex stuff */
extern FILE *yyin;
extern int yylineno;
/* pathnames */
char c_file[MAXPATHLEN]; /* temporary file */
char h_file[MAXPATHLEN]; /* output */
char o_file[MAXPATHLEN]; /* output */
char et_file[MAXPATHLEN]; /* input */
main(argc, argv)
int argc;
char **argv;
{
register char *p;
int n_flag = 0, debug = 0;
while (argc > 2) {
register char *arg, ch;
arg = argv[--argc];
if (strlen(arg) != 2 || arg[0] != '-')
goto usage;
ch = arg[1];
if (ch == 'n')
n_flag++;
else if (ch == 'd')
debug++;
else
goto usage;
}
if (argc != 2) {
usage:
fprintf(stderr, "Usage: %s et_file [-n]\n", argv[0]);
exit(1);
}
strcpy(et_file, argv[1]);
p = rindex(et_file, '/');
if (p == (char *)NULL)
p = et_file;
else
p++;
p = rindex(p, '.');
if (!strcmp(p, ".et"))
*++p = '\0';
else {
if (!p)
p = et_file;
while (*p)
p++;
*p++ = '.';
*p = '\0';
}
/* p points at null where suffix should be */
strcpy(p, "et.c");
strcpy(c_file, et_file);
p[0] = 'h';
p[1] = '\0';
strcpy(h_file, et_file);
p[0] = 'o';
strcpy(o_file, et_file);
p[0] = 'e';
p[1] = 't';
p[2] = '\0';
yyin = fopen(et_file, "r");
if (!yyin) {
perror(et_file);
exit(1);
}
hfile = fopen(h_file, "w");
if (hfile == (FILE *)NULL) {
perror(h_file);
exit(1);
}
cfile = fopen(c_file, "w");
if (cfile == (FILE *)NULL) {
perror("Can't open temp file");
exit(1);
}
/* parse it */
fputs("#define NULL 0\n", cfile);
fputs("static char *_et[] = {\n", cfile);
yyparse();
fclose(yyin); /* bye bye input file */
fputs("\t(char *)0\n};\n", cfile);
fputs("extern int init_error_table();\n\n", cfile);
fprintf(cfile, "int %s_err_base = %d;\n\n", table_name, table_number);
fprintf(cfile, "int\ninit_%s_err_tbl()\n", table_name);
fprintf(cfile, "{\n\treturn(init_error_table(_et, %d, %d));\n}\n",
table_number, current);
fclose(cfile);
fputs("extern int init_", hfile);
fputs(table_name, hfile);
fputs("_err_tbl();\nextern int ", hfile);
fputs(table_name, hfile);
fputs("_err_base;\n", hfile);
fclose(hfile); /* bye bye hfile */
if (n_flag)
exit(0);
if (!fork()) {
p = rindex(c_file, '/');
if (p) {
*p++ = '\0';
chdir(c_file);
}
else
p = c_file;
execlp("cc", "cc", "-c", "-R", "-O", p, 0);
perror("cc");
exit(1);
}
else wait(0);
if (!debug)
(void) unlink(c_file);
/* make it .o file name */
c_file[strlen(c_file)-1] = 'o';
if (!fork()) {
execlp("cp", "cp", c_file, o_file, 0);
perror("cp");
exit(1);
}
else wait(0);
if (!debug)
(void) unlink(c_file);
exit(0);
}
yyerror(s)
char *s;
{
fputs(s, stderr);
fprintf(stderr, "\nLine number %d; last token was '%s'\n",
yylineno, current_token);
}
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