Added tool bison++-1.21.11

1 files changed, 403 insertions, 0 deletions

diff --git a/tools/bison++/files.cc b/tools/bison++/files.cc
new file mode 100644
index 000000000..04b731519
--- /dev/null
+++ b/tools/bison++/files.cc
@@ -0,0 +1,403 @@
+/* Open and close files for bison,
+   Copyright (C) 1984, 1986, 1989 Free Software Foundation, Inc.
+
+This file is part of Bison, the GNU Compiler Compiler.
+
+Bison is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+Bison is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Bison; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+
+#ifndef XPFILE
+ #define XPFILE "bison.cc"
+#endif
+#ifndef XPFILE1
+ #define XPFILE1 "bison.hairy"
+#endif
+#ifndef XHFILE
+ #define XHFILE "bison.h"
+#endif
+
+#include <stdio.h>
+#include "system.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 *fbisoncomp = NULL; /* outputs YY_USE_CLASS defs (i.e bison or bison++ output*/
+
+extern bool bison_compability;
+/* 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 *tmpattrsfile;
+char *tmptabfile;
+char *tmpdefsfile;
+char *tmpbisoncompfile;
+/* AC added */
+char *hskelfile=NULL;
+char *cparserfile=NULL;
+FILE *fhskel=NULL;
+char *parser_name="parse"; 
+int parser_defined=0;
+int line_fparser=1;
+int line_fhskel=1;
+char *parser_fname="bison.cc";
+char *hskel_fname="bison.h";
+char *header_name=NULL;
+/* AC added end*/
+
+
+
+extern char     *mktemp();      /* So the compiler won't complain */
+extern char     *getenv();
+extern void     perror();
+FILE    *tryopen(char*,char*);     /* This might be a good idea */
+extern void done(int);
+
+extern char *program_name;
+extern int verboseflag;
+extern int definesflag;
+int fixed_outfiles = 0;
+
+static char *c_suffixes[]=
+   {".tab.c",".tab.cc",".tab.cpp",".tab.cxx",".tab.C",
+    ".c",".cc",".cpp",".cxx",".C",".CPP",".CXX",".CC",(char *)0};
+
+
+
+char*
+stringappend(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 */
+// Cleaned up under bison_compability run.x
+void
+openfiles()
+{
+  char *name_base;
+  register char *cp;
+  char *filename;
+  int base_length;
+  int short_base_length;
+
+  char *tmp_base = "/tmp/b.";
+  int tmp_len;
+
+  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 = strlen (name_base);
+      /* SHORT_BASE_LENGTH includes neither ".tab" nor ".c".  */
+      char **suffix;
+      for(suffix=c_suffixes;*suffix;suffix++)
+	/* try to detect .c .cpp .tab.c ... options */
+	{
+	  if(strlen(name_base)>strlen(*suffix) 
+	     && strcmp(name_base+base_length-strlen(*suffix),*suffix)==0)
+	    { 
+	      base_length -= strlen(*suffix);
+	      break;
+	    }
+	};
+      short_base_length=base_length;
+    }
+  else if (spec_file_prefix)
+    {
+      /* -b was specified.  Construct names from it.  */
+      /* SHORT_BASE_LENGTH includes neither ".tab" nor ".c".  */
+      short_base_length = strlen (spec_file_prefix);
+      /* Count room for `.tab'.  */
+      base_length = short_base_length + 4;
+      name_base = (char *) xmalloc (base_length + 1);
+      /* Append `.tab'.  */
+      strcpy (name_base, spec_file_prefix);
+      strcat (name_base, ".tab");
+    }
+  else
+    {
+      /* -o was not specified; compute output file name from input
+	 or use y.tab.c, etc., if -y was specified.  */
+
+      if(fixed_outfiles)
+	{
+	  name_base = (char*) malloc(sizeof(char)*10);
+	  strcpy(name_base,"y.y"); 
+	}
+      else
+	name_base = infile;
+
+      /* 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;
+
+      name_base = stringappend(name_base, short_base_length, ".tab");
+      base_length = short_base_length + 4;
+    }
+
+  finput = tryopen(infile, "r");
+
+  filename=cparserfile;
+  if(filename==NULL)
+    filename = getenv("BISON_SIMPLE");
+  {
+    if(filename)
+      {   
+	parser_fname=(char *)xmalloc(strlen(filename)+1);
+	strcpy(parser_fname,filename);
+      }
+    else
+      {   
+	parser_fname=(char *)xmalloc(strlen(PFILE)+1);
+	strcpy(parser_fname,PFILE);
+      }
+  }
+  fparser = tryopen(parser_fname, "r");
+
+  filename=hskelfile;
+  if(filename==NULL)
+    filename = getenv("BISON_SIMPLE_H");
+  {
+    if(filename)
+      {   
+	hskel_fname=(char *)xmalloc(strlen(filename)+1);
+	strcpy(hskel_fname,filename);
+      }
+    else
+      {   
+	hskel_fname=(char *)xmalloc(strlen(HFILE)+1);
+	strcpy(hskel_fname,HFILE);
+      }
+  }
+
+  fhskel = tryopen(hskel_fname, "r");
+
+  if (verboseflag)
+    {
+      if (spec_name_prefix)
+	outfile = stringappend(name_base, short_base_length, ".out");
+      else
+	outfile = stringappend(name_base, short_base_length, ".output");
+      foutput = tryopen(outfile, "w");
+    }
+  
+  faction = tmpfile();
+  fattrs = tmpfile();
+  ftable = tmpfile();
+  fbisoncomp = tmpfile();
+
+  if (definesflag)
+    { if(header_name)
+       defsfile=header_name;
+      else 
+       defsfile = stringappend(name_base, base_length, ".h");
+
+    fdefines = tmpfile();
+
+    }
+
+
+  /* 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");
+
+  attrsfile = stringappend(name_base, short_base_length, ".stype.h");
+  guardfile = stringappend(name_base, short_base_length, ".guard.c");
+}
+
+
+
+/* open the output files needed only for the semantic parser.
+This is done when %semantic_parser is seen in the declarations section.  */
+
+void
+open_extra_files()
+{
+  FILE *ftmp;
+  int c;
+  char *filename, *cp;
+
+  fclose(fparser);
+  filename=cparserfile;
+  if(filename!=NULL)
+    filename = (char *) getenv ("BISON_HAIRY");
+#ifdef _MSDOS
+  /* File doesn't exist in current directory; try in INIT directory.  */
+  cp = getenv("INIT");
+  if (filename == 0 && cp != NULL)
+    {FILE *tst;
+      filename = (char *)xmalloc(strlen(cp) + strlen(PFILE1) + 2);
+      strcpy(filename, PFILE1);
+      if((tst=fopen(filename,"r"))!=NULL)
+       {fclose(tst);}
+      else 
+      {
+      strcpy(filename, cp);
+      cp = filename + strlen(filename);
+      *cp++ = '/';
+      strcpy(cp, PFILE1);
+      }
+
+    }
+#endif /* MSDOS */
+  {
+
+    if(filename)
+      {
+	parser_fname=(char *)xmalloc(strlen(filename)+1);
+	strcpy(parser_fname,filename);	
+      }
+    else
+      {
+	parser_fname=(char *)xmalloc(strlen(PFILE1)+1);
+	strcpy(parser_fname,PFILE1);	
+      }
+  }
+  fparser = tryopen(parser_fname, "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(char* name, char* mode)
+{
+  FILE  *ptr;
+
+  ptr = fopen(name, mode);
+  if (ptr == NULL)
+    {
+      fprintf(stderr, "%s: ", program_name);
+      perror(name);
+      done(2);
+    }
+  return ptr;
+}
+
+void
+done(int k)
+{
+  if (faction)
+    fclose(faction);
+
+  if (fattrs)
+    fclose(fattrs);
+
+  if (fguard)
+    fclose(fguard);
+
+  if (finput)
+    fclose(finput);
+
+  if (fparser)
+    fclose(fparser);
+
+  if (foutput)
+    fclose(foutput);
+
+	/* JF write out the output file */
+  if (k == 0 && ftable)
+    {
+      FILE *ftmp;
+      register int c;
+
+      ftmp=tryopen(tabfile, "w");
+/* avoid reloading the definitions of tab.h */
+      fprintf(ftmp,"#define YY_%s_h_included\n",parser_name);
+      if(bison_compability==false)
+	  fprintf(ftmp,"#define YY_USE_CLASS\n");
+      else
+	  fprintf(ftmp,"/*#define YY_USE_CLASS \n*/");
+
+      rewind(ftable);
+      while((c=getc(ftable)) != EOF)
+	putc(c,ftmp);
+      fclose(ftmp);
+      fclose(ftable);
+
+
+      if (definesflag)
+	{
+	  ftmp = tryopen(defsfile, "w");
+	  fprintf(ftmp,"#ifndef YY_%s_h_included\n",parser_name);
+	  fprintf(ftmp,"#define YY_%s_h_included\n",parser_name);
+	  if(bison_compability==false)
+	    fprintf(ftmp,"#define YY_USE_CLASS\n");
+	  else
+	    fprintf(ftmp,"/*#define YY_USE_CLASS \n*/");
+	  fflush(fdefines);
+	  rewind(fdefines);
+	  while((c=getc(fdefines)) != EOF)
+	    putc(c,ftmp);
+	  fclose(fdefines);
+	  fprintf(ftmp,"#endif\n");
+	  fclose(ftmp);
+	}
+    }
+
+}