Initial revision

src/getargs.c

@@ -0,0 +1,135 @@
+/* Parse command line arguments 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.  */
+
+
+#include <stdio.h>
+#include "getopt.h"
+#include "system.h"
+#include "files.h"
+
+int verboseflag;
+int definesflag;
+int debugflag;
+int nolinesflag;
+char *spec_name_prefix; /* for -p.  */
+char *spec_file_prefix; /* for -b. */
+extern int fixed_outfiles;/* for -y */
+
+extern void fatal();
+
+struct option longopts[] =
+{
+  {"debug", 0, &debugflag, 1},
+  {"defines", 0, &definesflag, 1},
+  {"file-prefix", 1, 0, 'b'},
+  {"fixed-output-files", 0, &fixed_outfiles, 1},
+  {"name-prefix", 1, 0, 'a'},
+  {"no-lines", 0, &nolinesflag, 1},
+  {"output", 1, 0, 'o'},
+  {"output-file", 1, 0, 'o'},
+  {"verbose", 0, &verboseflag, 1},
+  {"version", 0, 0, 'V'},
+  {"yacc", 0, &fixed_outfiles, 1},
+  {0, 0, 0, 0}
+};
+
+void
+getargs(argc, argv)
+     int argc;
+     char *argv[];
+{
+  register int c;
+  int longind;
+  extern char *program_name;
+  extern char *version_string;
+
+  verboseflag = 0;
+  definesflag = 0;
+  debugflag = 0;
+  fixed_outfiles = 0;
+
+  while ((c = getopt_long (argc, argv, "yvdltVo:b:p:", longopts, &longind))
+	 != EOF)
+    {
+      if (c == 0 && longopts[longind].flag == 0)
+	c = longopts[longind].val;
+      switch (c)
+	{
+	case 0:
+	  /* Certain long options cause getopt_long to return 0.  */
+	  break;
+
+	case 'y':
+	  fixed_outfiles = 1;
+	  break;
+	  
+	case 'V':
+	  printf("%s", version_string);
+	  break;
+	  
+	case 'v':
+	  verboseflag = 1;
+	  break;
+	  
+	case 'd':
+	  definesflag = 1;
+	  break;
+	  
+	case 'l':
+	  nolinesflag = 1;
+	  break;
+	  
+	case 't':
+	  debugflag = 1;
+	  break;
+	  
+	case 'o':
+	  spec_outfile = optarg;
+	  break;
+	  
+	case 'b':
+	  spec_file_prefix = optarg;
+	  break;
+	  
+	case 'p':
+	  spec_name_prefix = optarg;
+	  break;
+	  
+	default:
+	  fprintf (stderr, "\
+Usage: %s [-dltvyV] [-b file-prefix] [-o outfile] [-p name-prefix]\n\
+       [--debug] [--defines] [--fixed-output-files] [--no-lines]\n\
+       [--verbose] [--version] [--yacc]\n\
+       [--file-prefix=prefix] [--name-prefix=prefix]\n\
+       [--output=outfile] grammar-file\n",
+		   program_name);
+	  exit (1);
+	}
+    }
+
+  if (optind == argc)
+    {
+      fprintf(stderr, "%s: no grammar file given\n", program_name);
+      exit(1);
+    }
+  if (optind < argc - 1)
+    fprintf(stderr, "%s: warning: extra arguments ignored\n", program_name);
+
+  infile = argv[optind];
+}