entered into RCS

[bison.git] / src / vmsgetargs.c

diff --git a/src/vmsgetargs.c b/src/vmsgetargs.c
new file mode 100644 (file)
index 0000000..c7e738b
--- /dev/null
+++ b/src/vmsgetargs.c
@@ -0,0 +1,160 @@
+/* VMS version of getargs; Uses DCL command parsing.
+   Copyright (C) 1989 Free Software Foundation, Inc.
+
+   This program 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.
+
+   This program 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 this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+
+#include <ctype.h>
+#include <stdio.h>
+#include "files.h"
+
+/*
+ *     VMS version of getargs(): Uses DCL command parsing
+ *             (argc and argv are ignored)
+ */
+int verboseflag;
+int definesflag;
+int debugflag;
+int nolinesflag;
+extern int fixed_outfiles;
+extern char * version_string;
+
+/* Allocate storgate and initialize, since bison uses them elsewhere.  */
+char *spec_name_prefix;
+char *spec_file_prefix;
+
+getargs(argc,argv)
+     int argc;
+     char *argv[];
+{
+  register char *cp;
+  static char Input_File[256];
+  static char output_spec[256], name_prefix_spec[256], file_prefix_spec[256];
+  extern char *infile;
+
+  verboseflag = 0;
+  definesflag = 0;
+  debugflag = 0;
+  fixed_outfiles = 0;
+  nolinesflag = 0;
+  /*
+   *   Check for /VERBOSE qualifier
+   */
+  if (cli_present("BISON$VERBOSE")) verboseflag = 1;
+  /*
+   *   Check for /DEFINES qualifier
+   */
+  if (cli_present("BISON$DEFINES")) definesflag = 1;
+  /*
+   *   Check for /FIXED_OUTFILES qualifier
+   */
+  if (cli_present("BISON$FIXED_OUTFILES")) fixed_outfiles = 1;
+  if (cli_present("BISON$YACC")) fixed_outfiles = 1;
+  /*
+   *   Check for /VERSION qualifier
+   */
+  if (cli_present("BISON$VERSION")) printf("%s",version_string);
+  /*
+   *   Check for /NOLINES qualifier
+   */
+  if (cli_present("BISON$NOLINES")) nolinesflag = 1;
+  /*
+   *   Check for /DEBUG qualifier
+   */
+  if (cli_present("BISON$DEBUG")) debugflag = 1;
+  /*
+   *   Get the filename
+   */
+  cli_get_value("BISON$INFILE", Input_File, sizeof(Input_File));
+  /*
+   *   Lowercaseify the input filename
+   */
+  cp = Input_File;
+  while(*cp)
+    {
+      if (isupper(*cp)) *cp = tolower(*cp);
+      cp++;
+    }
+  infile = Input_File;
+  /*
+   *   Get the output file
+   */
+  if (cli_present("BISON$OUTPUT"))
+    {
+      cli_get_value("BISON$OUTPUT", output_spec, sizeof(output_spec));
+      for (cp = spec_outfile = output_spec; *cp; cp++)
+       if (isupper(*cp))
+         *cp = tolower(*cp);
+    }
+  /*
+   *   Get the output file
+   */
+  if (cli_present("BISON$FILE_PREFIX"))
+    {
+      cli_get_value("BISON$FILE_PREFIX", file_prefix_spec, 
+                    sizeof(file_prefix_spec));
+      for (cp = spec_file_prefix = file_prefix_spec; *cp; cp++)
+       if (isupper(*cp))
+         *cp = tolower(*cp);
+    }
+  /*
+   *   Get the output file
+   */
+  if (cli_present("BISON$NAME_PREFIX"))
+    {
+      cli_get_value("BISON$NAME_PREFIX", name_prefix_spec, 
+                    sizeof(name_prefix_spec));
+      for (cp = spec_name_prefix = name_prefix_spec; *cp; cp++)
+       if (isupper(*cp))
+         *cp = tolower(*cp);
+    }
+}
+
+/************          DCL PARSING ROUTINES            **********/
+
+/*
+ *     See if "NAME" is present
+ */
+int
+cli_present(Name)
+     char *Name;
+{
+  struct {int Size; char *Ptr;} Descr;
+
+  Descr.Ptr = Name;
+  Descr.Size = strlen(Name);
+  return((cli$present(&Descr) & 1) ? 1 : 0);
+}
+
+/*
+ *     Get value of "NAME"
+ */
+int
+cli_get_value(Name,Buffer,Size)
+     char *Name;
+     char *Buffer;
+{
+  struct {int Size; char *Ptr;} Descr1,Descr2;
+
+  Descr1.Ptr = Name;
+  Descr1.Size = strlen(Name);
+  Descr2.Ptr = Buffer;
+  Descr2.Size = Size-1;
+  if (cli$get_value(&Descr1,&Descr2,&Descr2.Size) & 1) {
+    Buffer[Descr2.Size] = 0;
+    return(1);
+  }
+  return(0);
+}