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/* |
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* match.c |
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* new wildcard matching functions updated for speed. |
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* --Ian. |
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*/ |
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/* |
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* Copyright (C) 2001, 2002, 2003, 2004 Eggheads Development Team |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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*/ |
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|
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#define QUOTE '\\' /* quoting character... for matching "*" etc. */ |
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#define WILDS '*' /* matches any number of characters */ |
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#define WILDP '%' /* matches any nunber of non-space characters */ |
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#define WILDQ '?' /* matches exactly one character */ |
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#define WILDT '~' /* matches any number of spaces */ |
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|
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#include <ctype.h> |
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#define irctoupper toupper |
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|
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/* matching for binds */ |
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int wild_match_per(char *wild, char *matchtext) { |
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char *fallback=0; |
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int match = 0, saved = 0, count = 0, wildcard = 0; |
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|
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/* If either string is NULL, they can't match */ |
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if (!matchtext || !wild) |
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return 0; |
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|
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while(*matchtext && *wild) { |
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switch (*wild) { |
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case WILDP : |
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fallback = wild++; /* setup fallback */ |
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match = 1; |
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while((*(wild++)==WILDP)); /* get rid of redundant %s ... %%%% */ |
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if (*wild==QUOTE) /* is the match char quoted? */ |
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wild++; |
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while(*matchtext && (irctoupper(*wild) != irctoupper(*matchtext))) |
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if (*matchtext==' ') { |
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match=0; /* loop until we find the next char... or don't */ |
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break; |
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} else |
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matchtext++; |
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break; |
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case WILDQ : /* inc both... let the while() check for errors */ |
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wild++; |
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matchtext++; |
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break; |
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case WILDT : |
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wild++; |
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if (*matchtext!=' '){ /* need at least one space */ |
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count = saved; |
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if (!fallback) /* no match and no fallback? die */ |
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return 0; |
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wild = fallback-1; /* fall back */ |
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break; |
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} |
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while ((*(matchtext++)==' ')); /* loop through spaces */ |
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count++; |
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break; |
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case WILDS : |
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if (!*++wild) |
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return (count+saved+1); |
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wildcard = 1; |
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break; |
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default : |
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if (*wild==QUOTE) /* is it quoted? */ |
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wild++; |
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if (wildcard) { |
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saved = count; |
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match = count = 0; |
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fallback = wild; /* setup fallback in case we hit a false positive */ |
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while(*matchtext && (irctoupper(*wild) != irctoupper(*matchtext))) |
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matchtext++; |
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if (!*matchtext) { |
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match=1; |
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break; |
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} |
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} |
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if (irctoupper(*wild) != irctoupper(*matchtext)) { |
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if (!fallback) /* no match and no fallback? die */ |
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return 0; |
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count = saved; |
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wild = fallback-1; /* fall back */ |
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break; |
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} |
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count++; |
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wildcard = 0; |
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match=1; |
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if (*wild) |
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wild++; |
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if (*matchtext) |
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matchtext++; |
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} |
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} |
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return (!match || *wild || *matchtext)?0:(count+saved+1); |
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} |
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|
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/* generic hostmask matching... */ |
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int wild_match(char *wild, char *matchtext) { |
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char *fallback=0; |
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int match = 0, count = 0, saved = 0, wildcard = 0; |
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|
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/* If either string is NULL, they can't match */ |
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if (!matchtext || !wild) |
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return 0; |
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|
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while(*matchtext && *wild) { |
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switch (*wild) { |
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case WILDQ : /* inc both... let the while() check for errors */ |
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wild++; |
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matchtext++; |
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break; |
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while ((*(matchtext++)==' ')); /* loop through spaces */ |
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break; |
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case WILDS : |
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if (!*++wild) |
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return (count+saved+1); |
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wildcard = 1; |
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break; |
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default : |
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if (*wild==QUOTE) /* is it quoted? */ |
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wild++; |
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if (wildcard) { |
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saved = count; |
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match = count = 0; |
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fallback = wild; /* setup fallback in case we hit a false positive */ |
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while(*matchtext && (irctoupper(*wild) != irctoupper(*matchtext))) |
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matchtext++; |
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if (!*matchtext) { |
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match=1; |
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break; |
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} |
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} |
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if (irctoupper(*wild) != irctoupper(*matchtext)) { |
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if (!fallback) /* no match and no fallback? die */ |
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return 0; |
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count = saved; |
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wild = fallback-1; /* fall back */ |
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break; |
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} |
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wildcard = 0; |
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count++; |
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match=1; |
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if (*wild) |
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wild++; |
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if (*matchtext) |
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matchtext++; |
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} |
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} |
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return (!match || *wild || *matchtext)?0:(count+saved+1); |
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} |
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