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) 1988 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright (c) 1997, by Sun Mircrosystems, Inc. 28 * All rights reserved. 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.13 */ 32 33 /*LINTLIBRARY*/ 34 35 #include <sys/types.h> 36 #include <ctype.h> 37 #include "private.h" 38 39 static int 40 substr(MENU *m, char *s1, char *s2) 41 { 42 if (IgnoreCase(m)) { 43 while (*s1 && *s2) { 44 if (toupper(*s1++) != toupper(*s2++)) { 45 return (FALSE); 46 } 47 } 48 } else { 49 while (*s1 && *s2) { 50 if (*s1++ != *s2++) { 51 return (FALSE); 52 } 53 } 54 } 55 if (*s1) { 56 return (FALSE); 57 } 58 return (TRUE); 59 } 60 61 int 62 _match(MENU *m, char c, ITEM **current) 63 { 64 int i, j; 65 int found; 66 /* 67 * Indicates search has cycled past the current item. If the current 68 * item is matched after cycled is true then NO_MATCH results. 69 */ 70 int cycled; 71 72 /* If a backspace is encountered then search backward from the */ 73 /* current item. Otherwise, search forward from the current item. */ 74 75 i = Index(*current); 76 if (c && c != '\b') { /* c could be null */ 77 if (Pindex(m)+1 > MaxName(m)) { 78 return (E_NO_MATCH); 79 } 80 IthPattern(m, Pindex(m)) = c; 81 IthPattern(m, ++Pindex(m)) = '\0'; 82 if (--i < 0) { 83 i = Nitems(m)-1; 84 } 85 } 86 87 j = i; 88 found = FALSE; 89 cycled = FALSE; 90 91 do { 92 if (c == '\b') { 93 if (--i < 0) { 94 i = Nitems(m)-1; 95 } 96 } else { 97 if (++i >= Nitems(m)) { 98 i = 0; 99 } 100 } 101 if (substr(m, Pattern(m), Name(IthItem(m, i)))) { 102 found = TRUE; 103 break; 104 } 105 cycled = TRUE; 106 } while (i != j); 107 108 if (found) { 109 if (i == Index(*current) && cycled) { 110 return (E_NO_MATCH); 111 } 112 *current = IthItem(m, i); 113 } else { 114 if (c && c != '\b') { 115 Pindex(m) -= 1; 116 IthPattern(m, Pindex(m)) = '\0'; 117 } 118 return (E_NO_MATCH); 119 } 120 return (E_OK); 121 } 122 123 char * 124 menu_pattern(MENU *m) 125 { 126 if (m) { 127 if (Pattern(m)) { 128 return (Pattern(m)); 129 } else { 130 return (""); 131 } 132 } else { 133 return (NULL); 134 } 135 } 136 137 int 138 set_menu_pattern(MENU *m, char *s) 139 { 140 int top; 141 ITEM *current; 142 143 if (!m || !s) { 144 return (E_BAD_ARGUMENT); 145 } 146 if (!Items(m)) { 147 return (E_NOT_CONNECTED); 148 } 149 if (Indriver(m)) { 150 return (E_BAD_STATE); 151 } 152 153 IthPattern(m, 0) = '\0'; 154 Pindex(m) = 0; 155 156 if (*s == '\0') { 157 _position_cursor(m); 158 return (E_OK); 159 } 160 if (LinkNeeded(m)) { 161 _link_items(m); 162 } 163 164 top = Top(m); 165 current = Current(m); 166 167 for (; *s; s++) { 168 if (_match(m, *s, ¤t) != E_OK) { 169 IthPattern(m, 0) = '\0'; 170 Pindex(m) = 0; 171 _position_cursor(m); 172 return (E_NO_MATCH); 173 } 174 } 175 _chk_current(m, &top, current); 176 _affect_change(m, top, current); 177 return (E_OK); 178 } 179