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