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 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 #pragma ident "%Z%%M% %I% %E% SMI" 41 42 /* 43 Routines to convert terminfo string parameters to termcap form. 44 Not all terminfo strings will be, or could be, converted. 45 46 The following parameter forms will at least be handled. 47 48 %p1%d -> %d 49 %p1%2.2d -> %2 50 %p1%3.3d -> %3 51 %p1%02d -> %2 52 %p1%03d -> %3 53 %p1%c -> %. 54 %p1%'x'%+%c -> %+x 55 %i -> %i 56 %p2 before %p1 -> %r 57 %p1%'x'% > %+%p1%'y'%+%; -> % > xy 58 */ 59 60 #include "curses.h" 61 62 /* externs from libc */ 63 extern char *strcpy(); 64 #if !defined(SYSV) && !defined(USG) && !defined(strchr) 65 /* handle both Sys Vr2 and Vr3 curses */ 66 #define strchr index 67 #endif /* SYSV || USG */ 68 extern char *strchr(); 69 70 #define NULLPTR ((char *) 0) 71 72 /* 73 lookat looks at a string such as "%p1%d" and a pattern such as "%p*%d", 74 where '*' is the only wild character. Each place that the star matches, 75 the corresponding character in the string is placed in args. If the 76 pattern matches the string, 1 is returned. 77 */ 78 79 static int 80 lookat(char *string, char *pattern, char *args) 81 { 82 int val, pat; 83 84 while ((pat = *pattern++) && (val = *string++)) 85 if (pat == '*') 86 *args++ = val; 87 else if (val != pat) 88 return (0); 89 if (pat == '\0') 90 return (1); 91 else 92 return (0); 93 } 94 95 static int currentparm, otherparm, reversedparms; 96 static char *newvalue; 97 static char _newvalue[1024] = "!!! MUST CHANGE BY HAND !!!"; 98 #define BYHANDMSGLEN 27 99 100 static void setparms(); 101 102 /* 103 Setparms() and checkparms() are used by infotocap() to make 104 sure that the parameters in the terminfo entry alternate and are 105 only '1' or '2'. If the order has been reversed, then %r is added 106 in to the new value being built. 107 */ 108 109 static void 110 setparms() 111 { 112 currentparm = 1; 113 otherparm = 2; 114 reversedparms = 0; 115 newvalue = &_newvalue[BYHANDMSGLEN]; 116 return; 117 } 118 119 static int 120 checkparms(int arg) 121 { 122 arg -= '0'; 123 if (arg != 1 && arg != 2) 124 return (1); 125 else if (arg != currentparm) 126 if (reversedparms) 127 return (1); 128 else if (!reversedparms && arg == otherparm) { 129 (void) strcpy(newvalue, "%r"); 130 newvalue += 2; 131 reversedparms = TRUE; 132 } else 133 return (1); 134 else { 135 otherparm = currentparm; 136 currentparm = 3 - currentparm; 137 } 138 return (0); 139 } 140 141 /* 142 Infotocap looks at the string capability to see if it has any 143 stack manipulation operators. If possible, they are converted to 144 termcap form. If any operator is found that cannot be modified, 145 prepend a message to the beginning of the original value and 146 set err to 1. A pointer to the new copy of the string is returned 147 in either case. 148 */ 149 150 char 151 *infotocap(char *value, int *err) 152 { 153 char args[4]; 154 char *savevalue; 155 156 *err = 0; 157 if (strchr(value, '%') == NULLPTR) 158 return (value); 159 160 setparms(); 161 162 savevalue = value; 163 while (*value) 164 if (*value != '%') 165 *newvalue++ = *value++; 166 else if (lookat(value, "%p*%d", args)) { 167 if (checkparms(args[0])) 168 goto dobyhand; 169 (void) strcpy(newvalue, "%d"); 170 newvalue += 2; 171 value += 5; 172 } else if (lookat(value, "%p*%02d", args)) { 173 if (checkparms(args[0])) 174 goto dobyhand; 175 (void) strcpy(newvalue, "%2"); 176 newvalue += 2; 177 value += 7; 178 } else if (lookat(value, "%p*%03d", args)) { 179 if (checkparms(args[0])) 180 goto dobyhand; 181 (void) strcpy(newvalue, "%3"); 182 newvalue += 2; 183 value += 7; 184 } else if (lookat(value, "%p*%2.2d", args)) { 185 if (checkparms(args[0])) 186 goto dobyhand; 187 (void) strcpy(newvalue, "%2"); 188 newvalue += 2; 189 value += 8; 190 } else if (lookat(value, "%p*%3.3d", args)) { 191 if (checkparms(args[0])) 192 goto dobyhand; 193 (void) strcpy(newvalue, "%3"); 194 newvalue += 2; 195 value += 8; 196 } else if (lookat(value, "%p*%c", args)) { 197 if (checkparms(args[0])) 198 goto dobyhand; 199 (void) strcpy(newvalue, "%."); 200 newvalue += 2; 201 value += 5; 202 } else if (lookat(value, "%p*%'*'%+%c", args)) { 203 if (checkparms(args[0])) 204 goto dobyhand; 205 (void) sprintf(newvalue, "%%+%c", args[1]); 206 newvalue += 3; 207 value += 11; 208 } else if (lookat(value, "%i", args)) { 209 (void) strcpy(newvalue, "%i"); 210 newvalue += 2; 211 value += 2; 212 } else if (lookat(value, "%%", args)) { 213 (void) strcpy(newvalue, "%%"); 214 newvalue += 2; 215 value += 2; 216 } else if (lookat(value, "p*%'*'%>%+%p*%'*'%+%;", args)) { 217 if (args[0] != args[2]) 218 goto dobyhand; 219 if (checkparms(args[0])) 220 goto dobyhand; 221 (void) sprintf(newvalue, "%%>%c%c", args[1], args[3]); 222 newvalue += 2; 223 value += 21; 224 } else 225 goto dobyhand; 226 227 *newvalue = '\0'; 228 return (&_newvalue[BYHANDMSGLEN]); 229 230 dobyhand: 231 (void) strcpy(&_newvalue[BYHANDMSGLEN], savevalue); 232 *err = 1; 233 return (_newvalue); 234 } 235