145b44110b
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9573 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
116 lines
2.4 KiB
C
116 lines
2.4 KiB
C
/*
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* "$Id$"
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*
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* BSD string functions for the Fast Light Tool Kit (FLTK).
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*
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* Copyright 1998-2010 by Bill Spitzak and others.
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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 on the following page:
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*
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* http://www.fltk.org/str.php
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*/
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#include "flstring.h"
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/*
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* 'fl_strlcat()' - Safely concatenate two strings.
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*/
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size_t /* O - Length of string */
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fl_strlcat(char *dst, /* O - Destination string */
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const char *src, /* I - Source string */
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size_t size) { /* I - Size of destination string buffer */
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size_t srclen; /* Length of source string */
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size_t dstlen; /* Length of destination string */
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/*
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* Figure out how much room is left...
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*/
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dstlen = strlen(dst);
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size -= dstlen + 1;
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if (!size) return (dstlen); /* No room, return immediately... */
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/*
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* Figure out how much room is needed...
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*/
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srclen = strlen(src);
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/*
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* Copy the appropriate amount...
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*/
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if (srclen > size) srclen = size;
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memcpy(dst + dstlen, src, srclen);
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dst[dstlen + srclen] = '\0';
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return (dstlen + srclen);
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}
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/*
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* 'fl_strlcpy()' - Safely copy two strings.
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*/
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size_t /* O - Length of string */
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fl_strlcpy(char *dst, /* O - Destination string */
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const char *src, /* I - Source string */
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size_t size) { /* I - Size of destination string buffer */
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size_t srclen; /* Length of source string */
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/*
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* Figure out how much room is needed...
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*/
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size --;
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srclen = strlen(src);
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/*
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* Copy the appropriate amount...
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*/
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if (srclen > size) srclen = size;
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memcpy(dst, src, srclen);
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dst[srclen] = '\0';
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return (srclen);
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}
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#define C_RANGE(c,l,r) ( (c) >= (l) && (c) <= (r) )
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/**
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* locale independent ascii oriented case cmp
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* returns 0 if string successfully compare, -1 if s<t, +1 if s>t
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*/
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int fl_ascii_strcasecmp(const char *s, const char *t) {
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if (!s || !t) return (s==t ? 0 : (!s ? -1 : +1));
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for(;*s && *t; s++,t++) {
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if (*s == *t) continue;
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if (*s < *t) {
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if ( (*s+0x20)!=*t || !C_RANGE(*s,'A','Z') ) return -1;
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} else { /* (*s > *t) */
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if ( (*s-0x20)!=*t || !C_RANGE(*s,'a','z') ) return +1;
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}
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}
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return (*s==*t) ? 0 : (*t ? -1 : +1);
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}
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/*
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* End of "$Id$".
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*/
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