1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */ 32 33 #include "sys/types.h" 34 #include "regexpr.h" 35 #include "regex.h" 36 #include "string.h" 37 38 /** 39 ** match() - TEST MATCH OF TEMPLATE/PATTERN WITH PARAMETER 40 **/ 41 42 int 43 #if defined(__STDC__) 44 match ( 45 char * re, 46 char * value 47 ) 48 #else 49 match (re, value) 50 register char * re; 51 register char * value; 52 #endif 53 { 54 int ret; 55 56 /* 57 * We want exact matches, just as if the regular expression 58 * was ^...$, to explicitly match the beginning and end of line. 59 * Using "advance" instead of "step" takes care of the ^ and 60 * checking where the match left off takes care of the $. 61 * We don't do something silly like add the ^ and $ ourselves, 62 * because the user may have done that already. 63 */ 64 ret = advance(value, re); 65 if (ret && *loc2) 66 ret = 0; 67 return (ret); 68 } 69 70 /** 71 ** replace() - REPLACE TEMPLATE WITH EXPANDED REGULAR EXPRESSION MATCH 72 **/ 73 74 size_t 75 #if defined(__STDC__) 76 replace ( 77 char ** pp, 78 char * result, 79 char * value, 80 int nbra 81 ) 82 #else 83 replace (pp, result, value) 84 char ** pp; 85 char * result; 86 char * value; 87 int nbra; 88 #endif 89 { 90 register char * p; 91 register char * q; 92 93 register size_t ncount = 0; 94 95 96 /* 97 * Count and perhaps copy a single character: 98 */ 99 #define CCPY(SRC) if ((ncount++, pp)) \ 100 *p++ = SRC 101 102 /* 103 * Count and perhaps copy a string: 104 */ 105 #define SCPY(SRC) if (pp) { \ 106 register char * r; \ 107 for (r = (SRC); *r; ncount++) \ 108 *p++ = *r++; \ 109 } else \ 110 ncount += strlen(SRC) 111 112 113 if (pp) 114 p = *pp; 115 116 for (q = result; *q; q++) switch (*q) { 117 118 case '*': 119 case '&': 120 SCPY (value); 121 break; 122 123 case '\\': 124 switch (*++q) { 125 case '1': 126 case '2': 127 case '3': 128 case '4': 129 case '5': 130 case '6': 131 case '7': 132 case '8': 133 case '9': 134 { 135 register int n = *q-'1'; 136 137 if (n < nbra) { 138 register char c = *(braelist[n]); 139 140 *(braelist[n]) = 0; 141 SCPY (braslist[n]); 142 *(braelist[n]) = c; 143 } 144 break; 145 } 146 147 default: 148 CCPY (*q); 149 break; 150 } 151 break; 152 153 default: 154 CCPY (*q); 155 break; 156 } 157 158 if (pp) 159 *pp = p; 160 161 return (ncount); 162 } 163