Author: engelsman Date: 2010-10-23 07:10:26 -0700 (Sat, 23 Oct 2010) New Revision: 7728 Log: examples/howto-parse-args.cxx: now with added comments and svn:keywords
Modified: branches/branch-1.3/examples/howto-parse-args.cxx Modified: branches/branch-1.3/examples/howto-parse-args.cxx =================================================================== --- branches/branch-1.3/examples/howto-parse-args.cxx 2010-10-23 13:19:37 UTC (rev 7727) +++ branches/branch-1.3/examples/howto-parse-args.cxx 2010-10-23 14:10:26 UTC (rev 7728) @@ -1,5 +1,5 @@ // -// "$Id:$" +// "$Id$" // // How to parse command line arguments - Duncan Gibson 2010-10-23 // First posted in http://www.fltk.org/newsgroups.php?gfltk.general+v:31449 @@ -7,6 +7,10 @@ // Shows how to decode additional command line arguments using Fl::args() // on top of the "standard" options used by the toolkit itself. // +// Note that this only handles "option separateValue" rather than the +// usual *nix idiom of "option=value", and provides no validation nor +// conversion of the paramter string into ints or floats. +// // Copyright 1998-2010 by Bill Spitzak and others. // // This library is free software; you can redistribute it and/or @@ -28,15 +32,25 @@ // // http://www.fltk.org/str.php // +#include <stdio.h> +#include <string.h> #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; +/* + * callback function passed to Fl::args() to parse individual argument. + * If there is a match, 'i' must be incremented by 2 or 1 as appropriate. + * If there is no match, Fl::args() will then call Fl::arg() as fallback + * to try to match the "standard" FLTK parameters. + * + * Returns 2 if argv[i] matches with required parameter in argv[i+1], + * returns 1 if argv[i] matches on its own, + * returns 0 if argv[i] does not match. + */ int arg(int argc, char **argv, int &i) { if (strcmp("-h", argv[i]) == 0 || strcmp("--help", argv[i]) == 0) { @@ -77,10 +91,12 @@ Fl_Box* textBox = new Fl_Box(0, 0, 300, 200); if (optionString != 0) textBox->label(optionString); + else + textBox->label("re-run with [-o|--option] text"); mainWin->show(argc, argv); return Fl::run(); } // -// End of "$Id:$". +// End of "$Id$". // Property changes on: branches/branch-1.3/examples/howto-parse-args.cxx ___________________________________________________________________ Name: svn:keywords + Id Name: svn:eol-style + native _______________________________________________ fltk-commit mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk-commit
