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- /* Open and close files for bison,
- Copyright (C) 1984, 1986 Bob Corbett and Free Software Foundation, Inc.
-
- BISON is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY. No author or distributor accepts responsibility to anyone
- for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing.
- Refer to the BISON General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute BISON,
- but only under the conditions described in the BISON General Public
- License. A copy of this license is supposed to have been given to you
- along with BISON so you can know your rights and responsibilities. It
- should be in a file named COPYING. Among other things, the copyright
- notice and this notice must be preserved on all copies.
-
- In other words, you are welcome to use, share and improve this program.
- You are forbidden to forbid anyone else to use, share and improve
- what you give them. Help stamp out software-hoarding! */
-
- #ifdef VMS
- #include <ssdef.h>
- #define unlink delete
- #define XPFILE "GNU_BISON:[000000]BISON.SIMPLE"
- #define XPFILE1 "GNU_BISON:[000000]BISON.HAIRY"
- #endif
-
- #include <stdio.h>
- #include "files.h"
- #include "new.h"
- #include "gram.h"
-
- FILE *finput = NULL;
- FILE *foutput = NULL;
- FILE *fdefines = NULL;
- FILE *ftable = NULL;
- FILE *fattrs = NULL;
- FILE *fguard = NULL;
- FILE *faction = NULL;
- FILE *fparser = NULL;
-
- /* File name specified with -o for the output file, or 0 if no -o. */
- char *spec_outfile;
-
- char *infile;
- char *outfile;
- char *defsfile;
- char *tabfile;
- char *attrsfile;
- char *guardfile;
- char *actfile;
- char *tmpattrsfile;
- char *tmptabfile;
-
- #ifdef macintosh
- #define mktemp(a) (a)
- #else
- char *mktemp(); /* So the compiler won't complain */
- #endif
- FILE *tryopen(); /* This might be a good idea */
-
- extern int verboseflag;
- extern int definesflag;
- int fixed_outfiles = 0;
-
-
- char*
- stringappend(string1, end1, string2)
- char *string1;
- int end1;
- char *string2;
- {
- register char *ostring;
- register char *cp, *cp1;
- register int i;
-
- cp = string2; i = 0;
- while (*cp++) i++;
-
- ostring = NEW2(i+end1+1, char);
-
- cp = ostring;
- cp1 = string1;
- for (i = 0; i < end1; i++)
- *cp++ = *cp1++;
-
- cp1 = string2;
- while (*cp++ = *cp1++) ;
-
- return ostring;
- }
-
-
- /* JF this has been hacked to death. Nowaday it sets up the file names for
- the output files, and opens the tmp files and the parser */
- openfiles()
- {
- char *name_base;
- register char *cp;
- char *filename;
- int base_length;
- int short_base_length;
- char *getenv();
-
- #ifdef VMS
- char *tmp_base = "sys$scratch:b_";
- #else
- char *tmp_base = "/tmp/b.";
- #endif
- int tmp_len = strlen (tmp_base);
-
- if (spec_outfile)
- {
- /* -o was specified. The precise -o name will be used for ftable.
- For other output files, remove the ".c" or ".tab.c" suffix. */
- name_base = spec_outfile;
- /* BASE_LENGTH includes ".tab" but not ".c". */
- base_length = strlen (name_base);
- if (!strcmp (name_base + base_length - 2, ".c"))
- base_length -= 2;
- /* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */
- short_base_length = base_length;
- if (!strcmp (name_base + short_base_length - 4, ".tab"))
- short_base_length -= 4;
- else if (!strcmp (name_base + short_base_length - 4, "_tab"))
- short_base_length -= 4;
- }
- else
- {
- /* -o was not specified; compute output file name from input
- or use y.tab.c, etc., if -y was specified. */
-
- name_base = fixed_outfiles ? "y.y" : infile;
-
- /* Discard any directory names from the input file name
- to make the base of the output. */
- cp = name_base;
- while (*cp)
- {
- if (*cp == '/')
- name_base = cp+1;
- cp++;
- }
-
- /* BASE_LENGTH gets length of NAME_BASE, sans ".y" suffix if any. */
-
- base_length = strlen (name_base);
- if (!strcmp (name_base + base_length - 2, ".y"))
- base_length -= 2;
- short_base_length = base_length;
-
- #ifdef VMS
- name_base = stringappend(name_base, short_base_length, "_tab");
- #else
- name_base = stringappend(name_base, short_base_length, ".tab");
- #endif
- base_length = short_base_length + 4;
- }
-
- finput = tryopen(infile, "r");
-
- filename = (char *) getenv ("BISON_SIMPLE");
- fparser = tryopen(filename ? filename : PFILE, "r");
-
- if (verboseflag)
- {
- outfile = stringappend(name_base, short_base_length, ".output");
- foutput = tryopen(outfile, "w");
- }
-
- if (definesflag)
- {
- defsfile = stringappend(name_base, base_length, ".h");
- fdefines = tryopen(defsfile, "w");
- }
-
- actfile = mktemp(stringappend(tmp_base, tmp_len, "act.XXXXXX"));
- faction = tryopen(actfile, "w+");
- unlink(actfile);
-
- tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "attrs.XXXXXX"));
- fattrs = tryopen(tmpattrsfile,"w+");
- unlink(tmpattrsfile);
-
- tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "tab.XXXXXX"));
- ftable = tryopen(tmptabfile, "w+");
- unlink(tmptabfile);
-
- /* These are opened by `done' or `open_extra_files', if at all */
- if (spec_outfile)
- tabfile = spec_outfile;
- else
- tabfile = stringappend(name_base, base_length, ".c");
-
- #ifdef VMS
- attrsfile = stringappend(name_base, short_base_length, "_stype.h");
- guardfile = stringappend(name_base, short_base_length, "_guard.c");
- #else
- attrsfile = stringappend(name_base, short_base_length, ".stype.h");
- guardfile = stringappend(name_base, short_base_length, ".guard.c");
- #endif
- }
-
-
-
- /* open the output files needed only for the semantic parser.
- This is done when %semantic_parser is seen in the declarations section. */
- open_extra_files()
- {
- FILE *ftmp;
- int c;
- char *filename;
- /* JF change open parser file */
- fclose(fparser);
- filename = (char *) getenv ("BISON_HAIRY");
- fparser= tryopen(filename ? filename : PFILE1, "r");
-
- /* JF change from inline attrs file to separate one */
- ftmp = tryopen(attrsfile, "w");
- rewind(fattrs);
- while((c=getc(fattrs))!=EOF) /* Thank god for buffering */
- putc(c,ftmp);
- fclose(fattrs);
- fattrs=ftmp;
-
- fguard = tryopen(guardfile, "w");
-
- }
-
- /* JF to make file opening easier. This func tries to open file
- NAME with mode MODE, and prints an error message if it fails. */
- FILE *
- tryopen(name, mode)
- char *name;
- char *mode;
- {
- FILE *ptr;
-
- #ifdef macintosh
- if(mode[0] == 'w' && mode[1] == '\0')
- Create(name,0,'MPS ','TEXT');
- #endif
- ptr = fopen(name, mode);
- if (ptr == NULL)
- {
- fprintf(stderr, "bison: ");
- #ifdef macintosh
- fprintf(stderr, name);
- #else
- perror(name);
- #endif
- done(2);
- }
- return ptr;
- }
-
- done(k)
- int k;
- {
- if (faction)
- fclose(faction);
-
- if (fattrs)
- fclose(fattrs);
-
- if (fguard)
- fclose(fguard);
-
- if (finput)
- fclose(finput);
-
- if (fparser)
- fclose(fparser);
-
- /* JF we don't need this anymore
- if (fparser1)
- fclose(fparser1); */
-
- if (foutput)
- fclose(foutput);
-
- /* JF write out the output file */
- if (k == 0 && ftable)
- {
- FILE *ftmp;
- register int c;
-
- ftmp=tryopen(tabfile, "w");
- rewind(ftable);
- while((c=getc(ftable)) != EOF)
- putc(c,ftmp);
- fclose(ftmp);
- fclose(ftable);
- }
- /*
- * Macintosh does not have a real unlink(). The routine provided
- * by MPW is pretty much the same as VMS delete().
- */
- #ifdef macintosh
- unlink(actfile);
- unlink(tmpattrsfile);
- unlink(tmptabfile);
- #endif
-
- #ifdef VMS
- delete(actfile);
- delete(tmpattrsfile);
- delete(tmptabfile);
- if (k==0) sys$exit(SS$_NORMAL);
- sys$exit(SS$_ABORT);
- #else
- exit(k);
- #endif
- }
-