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252 lines
9.7 KiB
C
252 lines
9.7 KiB
C
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/* W3 Copyright statement
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Copyright 1995 by: Massachusetts Institute of Technology (MIT), INRIA</H2>
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This W3C software is being provided by the copyright holders under the
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following license. By obtaining, using and/or copying this software,
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you agree that you have read, understood, and will comply with the
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following terms and conditions:
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee or royalty is hereby
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granted, provided that the full text of this NOTICE appears on
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<EM>ALL</EM> copies of the software and documentation or portions
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thereof, including modifications, that you make.
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<B>THIS SOFTWARE IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE NO
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REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF EXAMPLE,
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BUT NOT LIMITATION, COPYRIGHT HOLDERS MAKE NO REPRESENTATIONS OR
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WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR
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THAT THE USE OF THE SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY
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THIRD PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.
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COPYRIGHT HOLDERS WILL BEAR NO LIABILITY FOR ANY USE OF THIS SOFTWARE
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OR DOCUMENTATION.
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The name and trademarks of copyright holders may NOT be used
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in advertising or publicity pertaining to the software without
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specific, written prior permission. Title to copyright in this
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software and any associated documentation will at all times remain
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with copyright holders.
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*/
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/* HTString.c
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** DYNAMIC STRING UTILITIES
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**
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** (c) COPYRIGHT MIT 1995.
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** Please first read the full copyright statement in the file COPYRIGH.
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** @(#) $Id: htstring.c,v 3.2 1998/06/22 21:20:29 spider Exp $
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**
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** Original version came with listserv implementation.
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** Version TBL Oct 91 replaces one which modified the strings.
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** 02-Dec-91 (JFG) Added stralloccopy and stralloccat
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** 23 Jan 92 (TBL) Changed strallocc* to 8 char HTSAC* for VM and suchlike
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** 6 Oct 92 (TBL) Moved WWW_TraceFlag in here to be in library
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** 9 Oct 95 (KR) fixed problem with double quotes in HTNextField
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*/
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/* Library include files */
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/* --- BEGIN added by mharmsen@netscape.com on 7/9/97 --- */
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#include "xp.h"
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/* --- END added by mharmsen@netscape.com on 7/9/97 --- */
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/* #include "sysdep.h" jhines -- 7/9/97 */
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#include "htutils.h"
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#include "htstring.h" /* Implemented here */
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#if WWWTRACE_MODE == WWWTRACE_FILE
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PUBLIC FILE *WWWTrace = NULL;
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#endif
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#ifndef WWW_WIN_DLL
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PUBLIC int WWW_TraceFlag = 0; /* Global trace flag for ALL W3 code */
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#endif
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/* ------------------------------------------------------------------------- */
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/* Strings of any length
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** ---------------------
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*/
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/* --- BEGIN removed by mharmsen@netscape.com on 7/9/97 --- */
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/************************************************************************/
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/* PUBLIC int strcasecomp (const char * a, const char * b) */
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/* { */
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/* int diff; */
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/* for( ; *a && *b; a++, b++) { */
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/* if ((diff = TOLOWER(*a) - TOLOWER(*b))) */
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/* return diff; */
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/* } */
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/* if (*a) return 1; */ /* a was longer than b */
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/* if (*b) return -1; */ /* a was shorter than b */
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/* return 0; */ /* Exact match */
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/*} */
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/************************************************************************/
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/* --- END removed by mharmsen@netscape.com on 7/9/97 --- */
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/* With count limit
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** ----------------
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*/
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/* --- BEGIN removed by mharmsen@netscape.com on 7/9/97 --- */
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/**********************************************************************/
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/* PUBLIC int strncasecomp (const char * a, const char * b, int n) */
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/* { */
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/* const char *p =a; */
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/* const char *q =b; */
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/* */
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/* for(p=a, q=b;; p++, q++) { */
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/* int diff; */
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/* if (p == a+n) return 0; */ /* Match up to n characters */
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/* if (!(*p && *q)) return *p - *q; */
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/* diff = TOLOWER(*p) - TOLOWER(*q); */
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/* if (diff) return diff; */
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/* } */
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/* NOTREACHED */
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/*} */
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/**********************************************************************/
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/* --- END removed by mharmsen@netscape.com on 7/9/97 --- */
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/*
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** strcasestr(s1,s2) -- like strstr(s1,s2) but case-insensitive.
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*/
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/* --- BEGIN removed by mharmsen@netscape.com on 7/9/97 --- */
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/*************************************************************************/
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/* PUBLIC char * strcasestr (char * s1, char * s2) */
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/* { */
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/* char * ptr = s1; */
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/* */
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/* if (!s1 || !s2 || !*s2) return s1; */
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/* */
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/* while (*ptr) { */
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/* if (TOUPPER(*ptr) == TOUPPER(*s2)) { */
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/* char * cur1 = ptr + 1; */
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/* char * cur2 = s2 + 1; */
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/* while (*cur1 && *cur2 && TOUPPER(*cur1) == TOUPPER(*cur2)) { */
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/* cur1++; */
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/* cur2++; */
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/* } */
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/* if (!*cur2) return ptr; */
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/* } */
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/* ptr++; */
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/* } */
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/* return NULL; */
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/*} */
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/*************************************************************************/
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/* --- END removed by mharmsen@netscape.com on 7/9/97 --- */
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#if 0 /* LJM: not needed */
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/* Allocate a new copy of a string, and returns it
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*/
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PUBLIC char * HTSACopy (char ** dest, const char * src)
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{
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if (*dest) HT_FREE(*dest);
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if (! src)
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*dest = NULL;
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else {
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/* --- BEGIN converted by mharmsen@netscape.com on 7/9/97 --- */
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if ((*dest = (char *) HT_MALLOC(XP_STRLEN(src) + 1)) == NULL)
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HT_OUTOFMEM("HTSACopy");
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XP_STRCPY (*dest, src);
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/* --- END converted by mharmsen@netscape.com on 7/9/97 --- */
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}
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return *dest;
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}
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/* String Allocate and Concatenate
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*/
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PUBLIC char * HTSACat (char ** dest, const char * src)
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{
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if (src && *src) {
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/* --- BEGIN converted by mharmsen@netscape.com on 7/9/97 --- */
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if (*dest) {
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int length = XP_STRLEN (*dest);
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if ((*dest = (char *) HT_REALLOC(*dest, length + XP_STRLEN(src) + 1)) == NULL)
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HT_OUTOFMEM("HTSACat");
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XP_STRCPY (*dest + length, src);
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} else {
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if ((*dest = (char *) HT_MALLOC(XP_STRLEN(src) + 1)) == NULL)
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HT_OUTOFMEM("HTSACat");
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XP_STRCPY (*dest, src);
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}
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/* --- END converted by mharmsen@netscape.com on 7/9/97 --- */
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}
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return *dest;
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}
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#endif /* 0 */
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/* String Matching
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** ---------------
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** String comparison function for file names with one wildcard * in the
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** template. Arguments are:
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**
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** tmpl is a template string to match the name against.
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** agaist, may contain a single wildcard character * which
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** matches zero or more arbitrary characters.
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** name is the name to be matched agaist the template.
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**
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** return: - Empty string if perfect match
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** - pointer to part matched by wildcard if any
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** - NULL if no match
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*/
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PUBLIC char * HTStrMatch (const char * tmpl, const char * name)
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{
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while (*tmpl && *name && *tmpl==*name) tmpl++, name++;
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return ((!*tmpl && !*name) || *tmpl=='*') ? (char *) name : (char *) NULL;
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}
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PUBLIC char * HTStrCaseMatch (const char * tmpl, const char * name)
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{
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/* --- BEGIN converted by mharmsen@netscape.com on 7/9/97 --- */
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while (*tmpl && *name && XP_TO_UPPER(*tmpl)==XP_TO_UPPER(*name)) tmpl++, name++;
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return ((!*tmpl && !*name) || *tmpl=='*') ? (char *) name : (char *) NULL;
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/* --- END converted by mharmsen@netscape.com on 7/9/97 --- */
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}
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/* Strip white space off a string
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** ------------------------------
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** Return value points to first non-white character, or to 0 if none.
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** All trailing white space is OVERWRITTEN with zero.
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*/
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PUBLIC char * HTStrip (char * s)
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{
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if (s) {
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char * p=s;
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for(p=s;*p;p++) {;} /* Find end of string */
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for(p--;p>=s;p--) {
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if (WHITE(*p))
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*p=0; /* Zap trailing blanks */
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else
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break;
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}
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while (WHITE(*s)) s++; /* Strip leading blanks */
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}
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return s;
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}
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PRIVATE HTTraceCallback * PHTTraceCallback;
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PUBLIC void HTTrace_setCallback(HTTraceCallback * pCall)
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{
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PHTTraceCallback = pCall;
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}
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PUBLIC HTTraceCallback * HTTrace_getCallback(void)
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{
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return PHTTraceCallback;
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}
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PUBLIC int HTTrace(const char * fmt, ...)
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{
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va_list pArgs;
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va_start(pArgs, fmt);
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if (PHTTraceCallback)
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(*PHTTraceCallback)(fmt, pArgs);
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#ifdef WWW_WIN_WINDOWS
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return (0);
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#else
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return (vfprintf(stderr, fmt, pArgs));
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#endif
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}
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