1 /* $OpenBSD: args.c,v 1.14 2004/07/20 03:50:26 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. 6 * Copyright (c) 1976 Board of Trustees of the University of Illinois. 7 * Copyright (c) 1985 Sun Microsystems, Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef lint 36 /*static char sccsid[] = "@(#)args.c 8.1 (Berkeley) 6/6/93";*/ 37 static char rcsid[] = "$OpenBSD: args.c,v 1.14 2004/07/20 03:50:26 deraadt Exp $"; 38 #endif /* not lint */ 39 40 /* 41 * Argument scanning and profile reading code. Default parameters are set 42 * here as well. 43 */ 44 45 #include <stdio.h> 46 #include <ctype.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <errno.h> 50 #include "indent_globs.h" 51 #include <err.h> 52 53 /* profile types */ 54 #define PRO_SPECIAL 1 /* special case */ 55 #define PRO_BOOL 2 /* boolean */ 56 #define PRO_INT 3 /* integer */ 57 #define PRO_FONT 4 /* troff font */ 58 59 /* profile specials for booleans */ 60 #define ON 1 /* turn it on */ 61 #define OFF 0 /* turn it off */ 62 63 /* profile specials for specials */ 64 #define IGN 1 /* ignore it */ 65 #define CLI 2 /* case label indent (float) */ 66 #define STDIN 3 /* use stdin */ 67 #define KEY 4 /* type (keyword) */ 68 69 char *option_source = "?"; 70 71 /* 72 * N.B.: because of the way the table here is scanned, options whose names are 73 * substrings of other options must occur later; that is, with -lp vs -l, -lp 74 * must be first. Also, while (most) booleans occur more than once, the last 75 * default value is the one actually assigned. 76 */ 77 struct pro { 78 char *p_name; /* name, eg -bl, -cli */ 79 int p_type; /* type (int, bool, special) */ 80 int p_default; /* the default value (if int) */ 81 int p_special; /* depends on type */ 82 int *p_obj; /* the associated variable */ 83 } pro[] = { 84 85 { "T", PRO_SPECIAL, 0, KEY, 0 }, 86 {"bacc", PRO_BOOL, false, ON, 87 &blanklines_around_conditional_compilation }, 88 {"badp", PRO_BOOL, false, ON, 89 &blanklines_after_declarations_at_proctop }, 90 {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations }, 91 {"bap", PRO_BOOL, false, ON, &blanklines_after_procs }, 92 {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments }, 93 {"bc", PRO_BOOL, true, OFF, &ps.leave_comma }, 94 {"bl", PRO_BOOL, true, OFF, &btype_2 }, 95 {"br", PRO_BOOL, true, ON, &btype_2 }, 96 {"bs", PRO_BOOL, false, ON, &Bill_Shannon }, 97 {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline }, 98 {"cd", PRO_INT, 0, 0, &ps.decl_com_ind }, 99 {"ce", PRO_BOOL, true, ON, &cuddle_else }, 100 {"ci", PRO_INT, 0, 0, &continuation_indent }, 101 {"cli", PRO_SPECIAL, 0, CLI, 0 }, 102 {"c", PRO_INT, 33, 0, &ps.com_ind }, 103 {"di", PRO_INT, 16, 0, &ps.decl_indent }, 104 {"dj", PRO_BOOL, false, ON, &ps.ljust_decl }, 105 {"d", PRO_INT, 0, 0, &ps.unindent_displace }, 106 {"eei", PRO_BOOL, false, ON, &extra_expression_indent }, 107 {"ei", PRO_BOOL, true, ON, &ps.else_if }, 108 {"fbc", PRO_FONT, 0, 0, (int *) &blkcomf }, 109 {"fbx", PRO_FONT, 0, 0, (int *) &boxcomf }, 110 {"fb", PRO_FONT, 0, 0, (int *) &bodyf }, 111 {"fc1", PRO_BOOL, true, ON, &format_col1_comments }, 112 {"fc", PRO_FONT, 0, 0, (int *) &scomf }, 113 {"fk", PRO_FONT, 0, 0, (int *) &keywordf }, 114 {"fs", PRO_FONT, 0, 0, (int *) &stringf }, 115 {"ip", PRO_BOOL, true, ON, &ps.indent_parameters }, 116 {"i", PRO_INT, 8, 0, &ps.ind_size }, 117 {"lc", PRO_INT, 0, 0, &block_comment_max_col }, 118 {"lp", PRO_BOOL, true, ON, &lineup_to_parens }, 119 {"l", PRO_INT, 78, 0, &max_col }, 120 {"nbacc", PRO_BOOL, false, OFF, 121 &blanklines_around_conditional_compilation }, 122 {"nbadp", PRO_BOOL, false, OFF, 123 &blanklines_after_declarations_at_proctop }, 124 {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations }, 125 {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs }, 126 {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments }, 127 {"nbc", PRO_BOOL, true, ON, &ps.leave_comma }, 128 {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon }, 129 {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline }, 130 {"nce", PRO_BOOL, true, OFF, &cuddle_else }, 131 {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl }, 132 {"neei", PRO_BOOL, false, OFF, &extra_expression_indent }, 133 {"nei", PRO_BOOL, true, OFF, &ps.else_if }, 134 {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments }, 135 {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters }, 136 {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens }, 137 {"npcs", PRO_BOOL, false, OFF, &proc_calls_space }, 138 {"npro", PRO_SPECIAL, 0, IGN, 0 }, 139 {"npsl", PRO_BOOL, true, OFF, &procnames_start_line }, 140 {"nps", PRO_BOOL, false, OFF, &pointer_as_binop }, 141 {"nsc", PRO_BOOL, true, OFF, &star_comment_cont }, 142 {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines }, 143 {"nv", PRO_BOOL, false, OFF, &verbose }, 144 {"pcs", PRO_BOOL, false, ON, &proc_calls_space }, 145 {"psl", PRO_BOOL, true, ON, &procnames_start_line }, 146 {"ps", PRO_BOOL, false, ON, &pointer_as_binop }, 147 {"sc", PRO_BOOL, true, ON, &star_comment_cont }, 148 {"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines }, 149 {"st", PRO_SPECIAL, 0, STDIN, 0 }, 150 {"troff", PRO_BOOL, false, ON, &troff }, 151 {"v", PRO_BOOL, false, ON, &verbose }, 152 /* whew! */ 153 { 0, 0, 0, 0, 0 } 154 }; 155 156 void scan_profile(FILE *); 157 void set_option(char *); 158 159 /* 160 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments 161 * given in these files. 162 */ 163 void 164 set_profile(void) 165 { 166 FILE *f; 167 char fname[BUFSIZ]; 168 char *home; 169 static char prof[] = ".indent.pro"; 170 171 home = getenv("HOME"); 172 if (home != NULL && *home != '\0') { 173 if (snprintf(fname, sizeof fname, "%s/%s", home, prof) >= sizeof fname) { 174 warnx("%s/%s: %s", home, prof, strerror(ENAMETOOLONG)); 175 return; 176 } 177 if ((f = fopen(option_source = fname, "r")) != NULL) { 178 scan_profile(f); 179 (void) fclose(f); 180 } 181 } 182 if ((f = fopen(option_source = prof, "r")) != NULL) { 183 scan_profile(f); 184 (void) fclose(f); 185 } 186 option_source = "Command line"; 187 } 188 189 void 190 scan_profile(FILE *f) 191 { 192 int i; 193 char *p; 194 char buf[BUFSIZ]; 195 196 while (1) { 197 for (p = buf; 198 (i = getc(f)) != EOF && (*p = i) > ' ' && p + 1 - buf < BUFSIZ; 199 ++p) 200 ; 201 if (p != buf) { 202 *p = 0; 203 if (verbose) 204 printf("profile: %s\n", buf); 205 set_option(buf); 206 } 207 else if (i == EOF) 208 return; 209 } 210 } 211 212 char *param_start; 213 214 int 215 eqin(char *s1, char *s2) 216 { 217 while (*s1) { 218 if (*s1++ != *s2++) 219 return (false); 220 } 221 param_start = s2; 222 return (true); 223 } 224 225 /* 226 * Set the defaults. 227 */ 228 void 229 set_defaults(void) 230 { 231 struct pro *p; 232 233 /* 234 * Because ps.case_indent is a float, we can't initialize it from the 235 * table: 236 */ 237 ps.case_indent = 0.0; /* -cli0.0 */ 238 for (p = pro; p->p_name; p++) 239 if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT) 240 *p->p_obj = p->p_default; 241 } 242 243 void 244 set_option(char *arg) 245 { 246 struct pro *p; 247 248 arg++; /* ignore leading "-" */ 249 for (p = pro; p->p_name; p++) 250 if (*p->p_name == *arg && eqin(p->p_name, arg)) 251 goto found; 252 errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1); 253 found: 254 switch (p->p_type) { 255 256 case PRO_SPECIAL: 257 switch (p->p_special) { 258 259 case IGN: 260 break; 261 262 case CLI: 263 if (*param_start == 0) 264 goto need_param; 265 ps.case_indent = atof(param_start); 266 break; 267 268 case STDIN: 269 if (input == 0) 270 input = stdin; 271 if (output == 0) 272 output = stdout; 273 break; 274 275 case KEY: 276 if (*param_start == 0) 277 goto need_param; 278 { 279 char *str; 280 if ((str = strdup(param_start)) == NULL) 281 err(1, NULL); 282 addkey(str, 4); 283 } 284 break; 285 286 default: 287 errx(1, "set_option: internal error: p_special %d", p->p_special); 288 } 289 break; 290 291 case PRO_BOOL: 292 if (p->p_special == OFF) 293 *p->p_obj = false; 294 else 295 *p->p_obj = true; 296 break; 297 298 case PRO_INT: 299 if (!isdigit(*param_start)) { 300 need_param: 301 errx(1, "%s: ``%s'' requires a parameter", option_source, arg - 1); 302 } 303 *p->p_obj = atoi(param_start); 304 if (*p->p_name == 'i' && *p->p_obj <= 0) 305 errx(1, "%s: ``%s must be greater of zero''", 306 option_source, arg - 1); 307 break; 308 309 case PRO_FONT: 310 parsefont((struct fstate *) p->p_obj, param_start); 311 break; 312 313 default: 314 errx(1, "set_option: internal error: p_type %d", p->p_type); 315 } 316 } 317