Since I have made several changes to SWIG over the years to accomodate

[wxWidgets.git] / wxPython / wxSWIG / SWIG / getopt.cxx

diff --git a/wxPython/wxSWIG/SWIG/getopt.cxx b/wxPython/wxSWIG/SWIG/getopt.cxx
new file mode 100644 (file)
index 0000000..725eb61
--- /dev/null
+++ b/wxPython/wxSWIG/SWIG/getopt.cxx
@@ -0,0 +1,141 @@
+/*******************************************************************************
+ * Simplified Wrapper and Interface Generator  (SWIG)
+ * 
+ * Author : David Beazley
+ *
+ * Department of Computer Science        
+ * University of Chicago
+ * 1100 E 58th Street
+ * Chicago, IL  60637
+ * beazley@cs.uchicago.edu
+ *
+ * Please read the file LICENSE for the copyright and terms by which SWIG
+ * can be used and distributed.
+ *******************************************************************************/
+
+#include "internal.h"
+
+/*******************************************************************************
+ * $Header$
+ *
+ * File : getopt.cxx
+ *
+ * This file defines a few functions for handling command line arguments.
+ * C++ makes this really funky---especially since each language module
+ * may want to extract it's own command line arguments.
+ *
+ * My own special version of getopt.   This is a bit weird, because we
+ * don't know what the options are in advance (they could be determined
+ * by a language module).
+ *******************************************************************************/
+
+static char **args;
+static int    numargs;
+static int   *marked;
+
+// -----------------------------------------------------------------------------
+// void init_args(int argc, char **argv)
+// 
+// Initializes the argument list.
+//
+// Inputs :
+//          argc      = Argument count
+//          argv      = Argument array
+//
+// Output : None
+//
+// Side Effects : Saves local copy of argc and argv
+// -----------------------------------------------------------------------------
+
+void
+init_args(int argc, char **argv)
+{
+  int i;
+  numargs = argc;
+  args = argv;
+  marked = new int[numargs];
+  for (i = 0; i < argc; i++) {
+    marked[i] = 0;
+  }
+  marked[0] = 1;
+}
+
+// -----------------------------------------------------------------------------
+// void mark_arg(int n)
+// 
+// Marks an argument as being parsed.  All modules should do this whenever they
+// parse a command line option.
+//
+// Inputs : n  =  Argument number
+//
+// Output : None
+//
+// Side Effects : Sets a status bit internally
+// -----------------------------------------------------------------------------
+
+void
+mark_arg(int n) {
+  if (marked)
+    marked[n] = 1;
+}
+
+// -----------------------------------------------------------------------------
+// void check_options()
+// 
+// Checks for unparsed command line options.  If so, issues an error and exits.
+//
+// Inputs : None
+//
+// Output : None
+//
+// Side Effects : exits if there are unparsed options
+// -----------------------------------------------------------------------------
+ 
+void check_options() {
+ 
+    int error = 0;
+    int i;
+
+    if (!marked) {
+      fprintf(stderr,"Must specify an input file.  Use -help for available options.\n");
+      SWIG_exit(1);
+    }
+    for (i = 1; i < numargs-1; i++) {
+        if (!marked[i]) {
+            fprintf(stderr,"swig error : Unrecognized option %s\n", args[i]);
+            error=1;
+        }
+    }
+ 
+    if (error) {
+        fprintf(stderr,"Use 'swig -help' for available options.\n");
+        SWIG_exit(1);
+    }
+
+    if (marked[numargs-1]) {
+      fprintf(stderr,"Must specify an input file. Use -help for available options.\n");
+      SWIG_exit(1);
+    }
+}
+
+// -----------------------------------------------------------------------------
+// void arg_error()
+// 
+// Generates a generic error message and exits.
+//
+// Inputs : None
+//
+// Output : None
+//
+// Side Effects : Exits
+// -----------------------------------------------------------------------------
+
+void arg_error() {
+  fprintf(stderr,"SWIG : Unable to parse command line options.\n");
+  fprintf(stderr,"Use 'swig -help' for available options.\n");
+  SWIG_exit(1);
+}
+
+
+       
+