403 lines
8.2 KiB
C
403 lines
8.2 KiB
C
/***********************************************************************/
|
|
/* */
|
|
/* Objective Caml */
|
|
/* */
|
|
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
|
|
/* */
|
|
/* Copyright 1996 Institut National de Recherche en Informatique et */
|
|
/* Automatique. Distributed only by permission. */
|
|
/* */
|
|
/***********************************************************************/
|
|
|
|
/* Based on public-domain code from Berkeley Yacc */
|
|
|
|
/* $Id$ */
|
|
|
|
#include <signal.h>
|
|
#include <string.h>
|
|
#include "defs.h"
|
|
|
|
char dflag;
|
|
char lflag;
|
|
char rflag;
|
|
char tflag;
|
|
char vflag;
|
|
char sflag;
|
|
char big_endian;
|
|
|
|
char *file_prefix = 0;
|
|
char *myname = "yacc";
|
|
#ifdef NO_UNIX
|
|
char temp_form[] = "yacc.X";
|
|
#else
|
|
char temp_form[] = "yacc.XXXXXXX";
|
|
#endif
|
|
|
|
int lineno;
|
|
int outline;
|
|
|
|
char *action_file_name;
|
|
char *entry_file_name;
|
|
char *code_file_name;
|
|
char *interface_file_name;
|
|
char *defines_file_name;
|
|
char *input_file_name = "";
|
|
char *output_file_name;
|
|
char *text_file_name;
|
|
char *union_file_name;
|
|
char *verbose_file_name;
|
|
|
|
FILE *action_file; /* a temp file, used to save actions associated */
|
|
/* with rules until the parser is written */
|
|
FILE *entry_file;
|
|
FILE *code_file; /* y.code.c (used when the -r option is specified) */
|
|
FILE *defines_file; /* y.tab.h */
|
|
FILE *input_file; /* the input file */
|
|
FILE *output_file; /* y.tab.c */
|
|
FILE *text_file; /* a temp file, used to save text until all */
|
|
/* symbols have been defined */
|
|
FILE *union_file; /* a temp file, used to save the union */
|
|
/* definition until all symbol have been */
|
|
/* defined */
|
|
FILE *verbose_file; /* y.output */
|
|
FILE *interface_file;
|
|
|
|
int nitems;
|
|
int nrules;
|
|
int ntotalrules;
|
|
int nsyms;
|
|
int ntokens;
|
|
int nvars;
|
|
|
|
int start_symbol;
|
|
char **symbol_name;
|
|
short *symbol_value;
|
|
short *symbol_prec;
|
|
char *symbol_assoc;
|
|
char **symbol_tag;
|
|
char *symbol_true_token;
|
|
|
|
short *ritem;
|
|
short *rlhs;
|
|
short *rrhs;
|
|
short *rprec;
|
|
char *rassoc;
|
|
short **derives;
|
|
char *nullable;
|
|
|
|
extern char *mktemp();
|
|
extern char *getenv();
|
|
|
|
|
|
void done(k)
|
|
int k;
|
|
{
|
|
if (action_file) { fclose(action_file); unlink(action_file_name); }
|
|
if (entry_file) { fclose(entry_file); unlink(entry_file_name); }
|
|
if (text_file) { fclose(text_file); unlink(text_file_name); }
|
|
if (union_file) { fclose(union_file); unlink(union_file_name); }
|
|
if (output_file && k > 0) {
|
|
fclose(output_file); unlink(output_file_name);
|
|
}
|
|
if (interface_file && k > 0) {
|
|
fclose(interface_file); unlink(interface_file_name);
|
|
}
|
|
exit(k);
|
|
}
|
|
|
|
|
|
void onintr(dummy)
|
|
int dummy;
|
|
{
|
|
done(1);
|
|
}
|
|
|
|
|
|
void set_signals()
|
|
{
|
|
#ifdef SIGINT
|
|
if (signal(SIGINT, SIG_IGN) != SIG_IGN)
|
|
signal(SIGINT, onintr);
|
|
#endif
|
|
#ifdef SIGTERM
|
|
if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
|
|
signal(SIGTERM, onintr);
|
|
#endif
|
|
#ifdef SIGHUP
|
|
if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
|
|
signal(SIGHUP, onintr);
|
|
#endif
|
|
}
|
|
|
|
|
|
void usage()
|
|
{
|
|
fprintf(stderr, "usage: %s [-v] [-b file_prefix] filename\n",
|
|
myname);
|
|
exit(1);
|
|
}
|
|
|
|
void getargs(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
register int i;
|
|
register char *s;
|
|
|
|
if (argc > 0) myname = argv[0];
|
|
for (i = 1; i < argc; ++i)
|
|
{
|
|
s = argv[i];
|
|
if (*s != '-') break;
|
|
switch (*++s)
|
|
{
|
|
case '\0':
|
|
input_file = stdin;
|
|
if (i + 1 < argc) usage();
|
|
return;
|
|
|
|
case '-':
|
|
++i;
|
|
goto no_more_options;
|
|
|
|
case 'v':
|
|
vflag = 1;
|
|
break;
|
|
|
|
case 'b':
|
|
if (*++s)
|
|
file_prefix = s;
|
|
else if (++i < argc)
|
|
file_prefix = argv[i];
|
|
else
|
|
usage();
|
|
continue;
|
|
|
|
default:
|
|
usage();
|
|
}
|
|
|
|
for (;;)
|
|
{
|
|
switch (*++s)
|
|
{
|
|
case '\0':
|
|
goto end_of_option;
|
|
|
|
case 'v':
|
|
vflag = 1;
|
|
break;
|
|
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
end_of_option:;
|
|
}
|
|
|
|
no_more_options:;
|
|
if (i + 1 != argc) usage();
|
|
input_file_name = argv[i];
|
|
if (file_prefix == 0) {
|
|
int len;
|
|
len = strlen(argv[i]);
|
|
file_prefix = malloc(len + 1);
|
|
if (file_prefix == 0) no_space();
|
|
strcpy(file_prefix, argv[i]);
|
|
while (len > 0) {
|
|
len--;
|
|
if (file_prefix[len] == '.') {
|
|
file_prefix[len] = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
char *
|
|
allocate(n)
|
|
unsigned int n;
|
|
{
|
|
register char *p;
|
|
|
|
p = NULL;
|
|
if (n)
|
|
{
|
|
p = CALLOC(1, n);
|
|
if (!p) no_space();
|
|
}
|
|
return (p);
|
|
}
|
|
|
|
|
|
void create_file_names()
|
|
{
|
|
int i, len;
|
|
char *tmpdir;
|
|
|
|
#ifdef NO_UNIX
|
|
len = 0;
|
|
i = sizeof(temp_form);
|
|
#else
|
|
tmpdir = getenv("TMPDIR");
|
|
if (tmpdir == 0) tmpdir = "/tmp";
|
|
len = strlen(tmpdir);
|
|
i = len + sizeof(temp_form);
|
|
if (len && tmpdir[len-1] != '/')
|
|
++i;
|
|
#endif
|
|
|
|
action_file_name = MALLOC(i);
|
|
if (action_file_name == 0) no_space();
|
|
entry_file_name = MALLOC(i);
|
|
if (entry_file_name == 0) no_space();
|
|
text_file_name = MALLOC(i);
|
|
if (text_file_name == 0) no_space();
|
|
union_file_name = MALLOC(i);
|
|
if (union_file_name == 0) no_space();
|
|
|
|
#ifndef NO_UNIX
|
|
strcpy(action_file_name, tmpdir);
|
|
strcpy(entry_file_name, tmpdir);
|
|
strcpy(text_file_name, tmpdir);
|
|
strcpy(union_file_name, tmpdir);
|
|
|
|
if (len && tmpdir[len - 1] != '/')
|
|
{
|
|
action_file_name[len] = '/';
|
|
entry_file_name[len] = '/';
|
|
text_file_name[len] = '/';
|
|
union_file_name[len] = '/';
|
|
++len;
|
|
}
|
|
#endif
|
|
|
|
strcpy(action_file_name + len, temp_form);
|
|
strcpy(entry_file_name + len, temp_form);
|
|
strcpy(text_file_name + len, temp_form);
|
|
strcpy(union_file_name + len, temp_form);
|
|
|
|
action_file_name[len + 5] = 'a';
|
|
entry_file_name[len + 5] = 'e';
|
|
text_file_name[len + 5] = 't';
|
|
union_file_name[len + 5] = 'u';
|
|
|
|
#ifndef NO_UNIX
|
|
mktemp(action_file_name);
|
|
mktemp(entry_file_name);
|
|
mktemp(text_file_name);
|
|
mktemp(union_file_name);
|
|
#endif
|
|
|
|
len = strlen(file_prefix);
|
|
|
|
output_file_name = MALLOC(len + 7);
|
|
if (output_file_name == 0)
|
|
no_space();
|
|
strcpy(output_file_name, file_prefix);
|
|
strcpy(output_file_name + len, OUTPUT_SUFFIX);
|
|
|
|
code_file_name = output_file_name;
|
|
|
|
if (vflag)
|
|
{
|
|
verbose_file_name = MALLOC(len + 8);
|
|
if (verbose_file_name == 0)
|
|
no_space();
|
|
strcpy(verbose_file_name, file_prefix);
|
|
strcpy(verbose_file_name + len, VERBOSE_SUFFIX);
|
|
}
|
|
|
|
interface_file_name = MALLOC(len + 8);
|
|
if (interface_file_name == 0)
|
|
no_space();
|
|
strcpy(interface_file_name, file_prefix);
|
|
strcpy(interface_file_name + len, INTERFACE_SUFFIX);
|
|
|
|
}
|
|
|
|
|
|
void open_files()
|
|
{
|
|
create_file_names();
|
|
|
|
if (input_file == 0)
|
|
{
|
|
input_file = fopen(input_file_name, "r");
|
|
if (input_file == 0)
|
|
open_error(input_file_name);
|
|
}
|
|
|
|
action_file = fopen(action_file_name, "w");
|
|
if (action_file == 0)
|
|
open_error(action_file_name);
|
|
|
|
entry_file = fopen(entry_file_name, "w");
|
|
if (entry_file == 0)
|
|
open_error(entry_file_name);
|
|
|
|
text_file = fopen(text_file_name, "w");
|
|
if (text_file == 0)
|
|
open_error(text_file_name);
|
|
|
|
if (vflag)
|
|
{
|
|
verbose_file = fopen(verbose_file_name, "w");
|
|
if (verbose_file == 0)
|
|
open_error(verbose_file_name);
|
|
}
|
|
|
|
if (dflag)
|
|
{
|
|
defines_file = fopen(defines_file_name, "w");
|
|
if (defines_file == 0)
|
|
open_error(defines_file_name);
|
|
union_file = fopen(union_file_name, "w");
|
|
if (union_file == 0)
|
|
open_error(union_file_name);
|
|
}
|
|
|
|
output_file = fopen(output_file_name, "w");
|
|
if (output_file == 0)
|
|
open_error(output_file_name);
|
|
|
|
if (rflag)
|
|
{
|
|
code_file = fopen(code_file_name, "w");
|
|
if (code_file == 0)
|
|
open_error(code_file_name);
|
|
}
|
|
else
|
|
code_file = output_file;
|
|
|
|
|
|
interface_file = fopen(interface_file_name, "w");
|
|
if (interface_file == 0)
|
|
open_error(interface_file_name);
|
|
}
|
|
|
|
#if macintosh
|
|
int volatile have_to_interact;
|
|
#endif
|
|
|
|
void main(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
#if macintosh
|
|
rotatecursor_init (&have_to_interact, NULL);
|
|
#endif
|
|
set_signals();
|
|
getargs(argc, argv);
|
|
open_files();
|
|
reader();
|
|
lr0();
|
|
lalr();
|
|
make_parser();
|
|
verbose();
|
|
output();
|
|
done(0);
|
|
/*NOTREACHED*/
|
|
}
|