1/*- 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Christos Zoulas of Cornell University. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. |
16 * 3. Neither the name of the University nor the names of its contributors |
17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * |
32 * $NetBSD: parse.c,v 1.22 2005/05/29 04:58:15 lukem Exp $ |
33 */ 34 35#if !defined(lint) && !defined(SCCSID) 36static char sccsid[] = "@(#)parse.c 8.1 (Berkeley) 6/4/93"; 37#endif /* not lint && not SCCSID */ 38#include <sys/cdefs.h> |
39__FBSDID("$FreeBSD: head/lib/libedit/parse.c 148834 2005-08-07 20:55:59Z stefanf $"); |
40 41/* 42 * parse.c: parse an editline extended command 43 * 44 * commands are: 45 * 46 * bind 47 * echotc 48 * edit 49 * gettc 50 * history 51 * settc 52 * setty 53 */ 54#include "sys.h" 55#include "el.h" |
56#include <stdlib.h> 57 58private const struct { |
59 const char *name; 60 int (*func)(EditLine *, int, const char **); |
61} cmds[] = { 62 { "bind", map_bind }, 63 { "echotc", term_echotc }, 64 { "edit", el_editmode }, |
65 { "history", hist_command }, |
66 { "telltc", term_telltc }, 67 { "settc", term_settc }, 68 { "setty", tty_stty }, 69 { NULL, NULL } 70}; 71 72 73/* parse_line(): 74 * Parse a line and dispatch it 75 */ 76protected int 77parse_line(EditLine *el, const char *line) 78{ |
79 const char **argv; |
80 int argc; 81 Tokenizer *tok; 82 83 tok = tok_init(NULL); |
84 tok_str(tok, line, &argc, &argv); |
85 argc = el_parse(el, argc, argv); 86 tok_end(tok); 87 return (argc); 88} 89 90 91/* el_parse(): 92 * Command dispatcher 93 */ 94public int |
95el_parse(EditLine *el, int argc, const char *argv[]) |
96{ |
97 const char *ptr; |
98 int i; 99 100 if (argc < 1) 101 return (-1); 102 ptr = strchr(argv[0], ':'); 103 if (ptr != NULL) { 104 char *tprog; 105 size_t l; --- 23 unchanged lines hidden (view full) --- 129} 130 131 132/* parse__escape(): 133 * Parse a string of the form ^<char> \<odigit> \<char> and return 134 * the appropriate character or -1 if the escape is not valid 135 */ 136protected int |
137parse__escape(const char **ptr) |
138{ 139 const char *p; 140 int c; 141 142 p = *ptr; 143 144 if (p[1] == 0) 145 return (-1); --- 48 unchanged lines hidden (view full) --- 194 return (-1); 195 --p; 196 break; 197 } 198 default: 199 c = *p; 200 break; 201 } |
202 } else if (*p == '^') { |
203 p++; 204 c = (*p == '?') ? '\177' : (*p & 0237); 205 } else 206 c = *p; 207 *ptr = ++p; 208 return ((unsigned char)c); 209} |
210 |
211/* parse__string(): 212 * Parse the escapes from in and put the raw string out 213 */ 214protected char * 215parse__string(char *out, const char *in) 216{ 217 char *rv = out; 218 int n; --- 6 unchanged lines hidden (view full) --- 225 226 case '\\': 227 case '^': 228 if ((n = parse__escape(&in)) == -1) 229 return (NULL); 230 *out++ = n; 231 break; 232 |
233 case 'M': 234 if (in[1] == '-' && in[2] != '\0') { 235 *out++ = '\033'; 236 in += 2; 237 break; 238 } 239 /*FALLTHROUGH*/ 240 |
241 default: 242 *out++ = *in++; 243 break; 244 } 245} 246 247 248/* parse_cmd(): --- 13 unchanged lines hidden --- |