77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
// "$Id$"
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//
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// FLTK native OS file chooser widget
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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// Copyright 2004 Greg Ercolano.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// http://www.fltk.org/COPYING.php
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//
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// Please report all bugs and problems to:
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//
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// http://www.fltk.org/str.php
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//
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#include <string.h>
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#include <FL/Enumerations.H>
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// COPY A STRING WITH 'new'
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// Value can be NULL
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//
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static char *strnew(const char *val) {
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if ( val == NULL ) return(NULL);
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char *s = new char[strlen(val)+1];
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strcpy(s, val);
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return(s);
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}
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// FREE STRING CREATED WITH strnew(), NULLS OUT STRING
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// Value can be NULL
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//
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static char *strfree(char *val) {
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if ( val ) delete [] val;
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return(NULL);
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}
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// 'DYNAMICALLY' APPEND ONE STRING TO ANOTHER
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// Returns newly allocated string, or NULL
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// if s && val == NULL.
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// 's' can be NULL; returns a strnew(val).
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// 'val' can be NULL; s is returned unmodified.
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//
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// Usage:
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// char *s = strnew("foo"); // s = "foo"
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// s = strapp(s, "bar"); // s = "foobar"
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//
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#if !defined(WIN32)
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static char *strapp(char *s, const char *val) {
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if ( ! val ) {
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return(s); // Nothing to append? return s
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}
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if ( ! s ) {
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return(strnew(val)); // New string? return copy of val
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}
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char *news = new char[strlen(s)+strlen(val)+1];
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strcpy(news, s);
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strcat(news, val);
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delete [] s; // delete old string
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return(news); // return new copy
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}
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#endif
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// APPEND A CHARACTER TO A STRING
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// This does NOT allocate space for the new character.
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//
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static void chrcat(char *s, char c) {
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char tmp[2] = { c, '\0' };
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strcat(s, tmp);
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}
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//
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// End of "$Id$".
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//
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