Author: engelsman
Date: 2010-10-23 06:19:37 -0700 (Sat, 23 Oct 2010)
New Revision: 7727
Log:
added examples/howto-parse-args.cxx
Added:
branches/branch-1.3/examples/howto-parse-args.cxx
Modified:
branches/branch-1.3/examples/Makefile
Modified: branches/branch-1.3/examples/Makefile
===================================================================
--- branches/branch-1.3/examples/Makefile 2010-10-22 15:15:23 UTC (rev
7726)
+++ branches/branch-1.3/examples/Makefile 2010-10-23 13:19:37 UTC (rev
7727)
@@ -1,6 +1,7 @@
include ../makeinclude
ALL = howto-add_fd-and-popen$(EXEEXT) \
+ howto-parse-args$(EXEEXT) \
tabs-simple$(EXEEXT) \
tree-simple$(EXEEXT) \
wizard-simple$(EXEEXT)
Added: branches/branch-1.3/examples/howto-parse-args.cxx
===================================================================
--- branches/branch-1.3/examples/howto-parse-args.cxx
(rev 0)
+++ branches/branch-1.3/examples/howto-parse-args.cxx 2010-10-23 13:19:37 UTC
(rev 7727)
@@ -0,0 +1,86 @@
+//
+// "$Id:$"
+//
+// How to parse command line arguments - Duncan Gibson 2010-10-23
+// First posted in http://www.fltk.org/newsgroups.php?gfltk.general+v:31449
+//
+// Shows how to decode additional command line arguments using Fl::args()
+// on top of the "standard" options used by the toolkit itself.
+//
+// Copyright 1998-2010 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+// http://www.fltk.org/str.php
+//
+#include <FL/Fl.H>
+#include <FL/Fl_Box.H>
+#include <FL/Fl_Window.H>
+#include "stdio.h"
+#include "string.h"
+
+int helpFlag = 0;
+char *optionString = 0;
+
+int arg(int argc, char **argv, int &i)
+{
+ if (strcmp("-h", argv[i]) == 0 || strcmp("--help", argv[i]) == 0) {
+ helpFlag = 1;
+ i += 1;
+ return 1;
+ }
+ if (strcmp("-o", argv[i]) == 0 || strcmp("--option", argv[i]) == 0) {
+ if (i < argc-1 && argv[i+1] != 0) {
+ optionString = argv[i+1];
+ i += 2;
+ return 2;
+ }
+ }
+ return 0;
+}
+
+int main(int argc, char** argv)
+{
+ int i = 1;
+ if (Fl::args(argc, argv, i, arg) < argc)
+ // note the concatenated strings to give a single format string!
+ Fl::fatal("error: unknown option: %s\n"
+ "usage: %s [options]\n"
+ " -h | --help : print extended help message\n"
+ " -o | --option # : example option with parameter\n"
+ " plus standard fltk options\n",
+ argv[i], argv[0]);
+ if (helpFlag)
+ Fl::fatal("usage: %s [options]\n"
+ " -h | --help : print extended help message\n"
+ " -o | --option # : example option with parameter\n"
+ " plus standard fltk options:\n"
+ "%s\n",
+ argv[0], Fl::help);
+
+ Fl_Window* mainWin = new Fl_Window(300, 200);
+ Fl_Box* textBox = new Fl_Box(0, 0, 300, 200);
+ if (optionString != 0)
+ textBox->label(optionString);
+ mainWin->show(argc, argv);
+ return Fl::run();
+}
+
+//
+// End of "$Id:$".
+//
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