283 lines
8.6 KiB
C
283 lines
8.6 KiB
C
/************************************************************************
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* IRC - Internet Relay Chat, common/match.c
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* Copyright (C) 1990 Jarkko Oikarinen
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef lint
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static char sccsid[] = "%W% %G% (C) 1988 University of Oulu, \
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Computing Center and Jarkko Oikarinen";
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#endif
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#include "struct.h"
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#include "common.h"
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#include "sys.h"
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static int calls = 0;
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#define MAX_CALLS 200
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/*
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** Compare if a given string (name) matches the given
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** mask (which can contain wild cards: '*' - match any
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** number of chars, '?' - match any single character.
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**
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** return 0, if match
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** 1, if no match
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*/
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/*
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** _match()
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** Iterative matching function, rather than recursive.
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** Written by Douglas A Lewis (dalewis@acsu.buffalo.edu)
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*/
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static int _match(mask, name)
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const char *mask;
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const char *name;
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{
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Reg1 u_char *m = (u_char *)mask, *n = (u_char *)name;
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const char *ma = mask;
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const char *na = name;
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int wild = 0, q = 0;
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while (1)
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{
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if (calls++ > MAX_CALLS)
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return 1;
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if (*m == '*')
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{
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while (*m == '*')
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m++;
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wild = 1;
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ma = (char *)m;
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na = (char *)n;
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}
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if (!*m)
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{
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if (!*n)
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return 0;
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for (m--; (m > (u_char *)mask) && (*m == '?'); m--)
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;
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if ((*m == '*') && (m > (u_char *)mask) &&
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(m[-1] != '\\'))
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return 0;
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if (!wild)
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return 1;
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m = (u_char *)ma;
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n = (u_char *)++na;
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}
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else if (!*n)
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{
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while(*m == '*')
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m++;
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return (*m != 0);
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}
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if ((*m == '\\') && ((m[1] == '*') || (m[1] == '?')))
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{
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m++;
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q = 1;
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}
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else
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q = 0;
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if ((tolower(*m) != tolower(*n)) && ((*m != '?') || q))
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{
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if (!wild)
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return 1;
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m = (u_char *)ma;
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n = (u_char *)++na;
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}
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else
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{
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if (*m)
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m++;
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if (*n)
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n++;
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}
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}
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}
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/*
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* External interfaces to the above matching routine.
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*/
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int match(const char *ma, const char *na)
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{
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calls = 0;
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return _match(ma, na);
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}
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int matches(const char *ma, const char *na)
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{
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int r;
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calls = 0;
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return _match(ma, na);
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}
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/*
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** collapse a pattern string into minimal components.
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** This particular version is "in place", so that it changes the pattern
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** which is to be reduced to a "minimal" size.
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*/
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char *collapse(pattern)
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char *pattern;
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{
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Reg1 char *s = pattern, *s1, *t;
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if (BadPtr(pattern))
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return pattern;
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/*
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* Collapse all \** into \*, \*[?]+\** into \*[?]+
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*/
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for (; *s; s++)
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if (*s == '\\')
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if (!*(s + 1))
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break;
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else
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s++;
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else if (*s == '*')
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{
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if (*(t = s1 = s + 1) == '*')
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while (*t == '*')
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t++;
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else if (*t == '?')
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for (t++, s1++; *t == '*' || *t == '?'; t++)
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if (*t == '?')
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*s1++ = *t;
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while ((*s1++ = *t++))
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;
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}
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return pattern;
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}
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unsigned char tolowertab[] =
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{ 0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa,
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0xb, 0xc, 0xd, 0xe, 0xf, 0x10, 0x11, 0x12, 0x13, 0x14,
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0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
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0x1e, 0x1f,
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' ', '!', '"', '#', '$', '%', '&', 0x27, '(', ')',
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'*', '+', ',', '-', '.', '/',
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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':', ';', '<', '=', '>', '?',
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'@', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
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'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
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't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~',
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'_',
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'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
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'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
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't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~',
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0x7f,
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
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0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
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0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
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0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
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0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9,
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0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
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0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9,
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0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
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0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9,
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0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
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0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9,
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0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
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0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
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0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
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0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9,
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0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
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unsigned char touppertab[] =
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{ 0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa,
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0xb, 0xc, 0xd, 0xe, 0xf, 0x10, 0x11, 0x12, 0x13, 0x14,
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0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
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0x1e, 0x1f,
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' ', '!', '"', '#', '$', '%', '&', 0x27, '(', ')',
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'*', '+', ',', '-', '.', '/',
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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':', ';', '<', '=', '>', '?',
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'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I',
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'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
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'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', '\\', ']', '^',
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0x5f,
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'`', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I',
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'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
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'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', '\\', ']', '^',
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0x7f,
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
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0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
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0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
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0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
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0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9,
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0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
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0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9,
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0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
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0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9,
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0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
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0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9,
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0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
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0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
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0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
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0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9,
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0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
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unsigned char char_atribs[] = {
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/* 0-7 */ CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL,
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/* 8-12 */ CNTRL, CNTRL|SPACE, CNTRL|SPACE, CNTRL|SPACE, CNTRL|SPACE,
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/* 13-15 */ CNTRL|SPACE, CNTRL, CNTRL,
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/* 16-23 */ CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL,
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/* 24-31 */ CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL,
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/* space */ PRINT|SPACE,
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/* !"#$%&'( */ PRINT, PRINT, PRINT, PRINT, PRINT, PRINT, PRINT, PRINT,
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/* )*+,-./ */ PRINT, PRINT, PRINT, PRINT, PRINT, PRINT, PRINT,
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/* 0123 */ PRINT|DIGIT, PRINT|DIGIT, PRINT|DIGIT, PRINT|DIGIT,
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/* 4567 */ PRINT|DIGIT, PRINT|DIGIT, PRINT|DIGIT, PRINT|DIGIT,
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/* 89:; */ PRINT|DIGIT, PRINT|DIGIT, PRINT, PRINT,
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/* <=>? */ PRINT, PRINT, PRINT, PRINT,
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/* @ */ PRINT,
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/* ABC */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* DEF */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* GHI */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* JKL */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* MNO */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* PQR */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* STU */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* VWX */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* YZ[ */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* \]^ */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* _` */ PRINT,PRINT,
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/* abc */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* def */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* ghi */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* jkl */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* mno */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* pqr */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* stu */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* vwx */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* yz{ */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* |}~ */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
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/* del */ 0,
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/* 80-8f */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* 90-9f */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* a0-af */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* b0-bf */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* c0-cf */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* d0-df */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* e0-ef */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* f0-ff */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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