1 /* $OpenBSD: args.c,v 1.18 2014/05/20 01:25:23 guenther 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 /* 36 * Argument scanning and profile reading code. Default parameters are set 37 * here as well. 38 */ 39 40 #include <stdio.h> 41 #include <ctype.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <errno.h> 45 #include "indent_globs.h" 46 #include <err.h> 47 48 /* profile types */ 49 #define PRO_SPECIAL 1 /* special case */ 50 #define PRO_BOOL 2 /* boolean */ 51 #define PRO_INT 3 /* integer */ 52 #define PRO_FONT 4 /* troff font */ 53 54 /* profile specials for booleans */ 55 #define ON 1 /* turn it on */ 56 #define OFF 0 /* turn it off */ 57 58 /* profile specials for specials */ 59 #define IGN 1 /* ignore it */ 60 #define CLI 2 /* case label indent (float) */ 61 #define STDIN 3 /* use stdin */ 62 #define KEY 4 /* type (keyword) */ 63 64 char *option_source = "?"; 65 66 /* 67 * N.B.: because of the way the table here is scanned, options whose names are 68 * substrings of other options must occur later; that is, with -lp vs -l, -lp 69 * must be first. Also, while (most) booleans occur more than once, the last 70 * default value is the one actually assigned. 71 */ 72 struct pro { 73 char *p_name; /* name, eg -bl, -cli */ 74 int p_type; /* type (int, bool, special) */ 75 int p_default; /* the default value (if int) */ 76 int p_special; /* depends on type */ 77 int *p_obj; /* the associated variable */ 78 } pro[] = { 79 80 { "T", PRO_SPECIAL, 0, KEY, 0 }, 81 {"bacc", PRO_BOOL, false, ON, 82 &blanklines_around_conditional_compilation }, 83 {"badp", PRO_BOOL, false, ON, 84 &blanklines_after_declarations_at_proctop }, 85 {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations }, 86 {"bap", PRO_BOOL, false, ON, &blanklines_after_procs }, 87 {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments }, 88 {"bc", PRO_BOOL, true, OFF, &ps.leave_comma }, 89 {"bl", PRO_BOOL, true, OFF, &btype_2 }, 90 {"br", PRO_BOOL, true, ON, &btype_2 }, 91 {"bs", PRO_BOOL, false, ON, &Bill_Shannon }, 92 {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline }, 93 {"cd", PRO_INT, 0, 0, &ps.decl_com_ind }, 94 {"ce", PRO_BOOL, true, ON, &cuddle_else }, 95 {"ci", PRO_INT, 0, 0, &continuation_indent }, 96 {"cli", PRO_SPECIAL, 0, CLI, 0 }, 97 {"c", PRO_INT, 33, 0, &ps.com_ind }, 98 {"di", PRO_INT, 16, 0, &ps.decl_indent }, 99 {"dj", PRO_BOOL, false, ON, &ps.ljust_decl }, 100 {"d", PRO_INT, 0, 0, &ps.unindent_displace }, 101 {"eei", PRO_BOOL, false, ON, &extra_expression_indent }, 102 {"ei", PRO_BOOL, true, ON, &ps.else_if }, 103 {"fbc", PRO_FONT, 0, 0, (int *) &blkcomf }, 104 {"fbx", PRO_FONT, 0, 0, (int *) &boxcomf }, 105 {"fb", PRO_FONT, 0, 0, (int *) &bodyf }, 106 {"fc1", PRO_BOOL, true, ON, &format_col1_comments }, 107 {"fc", PRO_FONT, 0, 0, (int *) &scomf }, 108 {"fk", PRO_FONT, 0, 0, (int *) &keywordf }, 109 {"fs", PRO_FONT, 0, 0, (int *) &stringf }, 110 {"ip", PRO_BOOL, true, ON, &ps.indent_parameters }, 111 {"i", PRO_INT, 8, 0, &ps.ind_size }, 112 {"lc", PRO_INT, 0, 0, &block_comment_max_col }, 113 {"lp", PRO_BOOL, true, ON, &lineup_to_parens }, 114 {"l", PRO_INT, 78, 0, &max_col }, 115 {"nbacc", PRO_BOOL, false, OFF, 116 &blanklines_around_conditional_compilation }, 117 {"nbadp", PRO_BOOL, false, OFF, 118 &blanklines_after_declarations_at_proctop }, 119 {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations }, 120 {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs }, 121 {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments }, 122 {"nbc", PRO_BOOL, true, ON, &ps.leave_comma }, 123 {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon }, 124 {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline }, 125 {"nce", PRO_BOOL, true, OFF, &cuddle_else }, 126 {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl }, 127 {"neei", PRO_BOOL, false, OFF, &extra_expression_indent }, 128 {"nei", PRO_BOOL, true, OFF, &ps.else_if }, 129 {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments }, 130 {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters }, 131 {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens }, 132 {"npcs", PRO_BOOL, false, OFF, &proc_calls_space }, 133 {"npro", PRO_SPECIAL, 0, IGN, 0 }, 134 {"npsl", PRO_BOOL, true, OFF, &procnames_start_line }, 135 {"nps", PRO_BOOL, false, OFF, &pointer_as_binop }, 136 {"nsc", PRO_BOOL, true, OFF, &star_comment_cont }, 137 {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines }, 138 {"nut", PRO_BOOL, true, OFF, &use_tabs}, 139 {"nv", PRO_BOOL, false, OFF, &verbose }, 140 {"pcs", PRO_BOOL, false, ON, &proc_calls_space }, 141 {"psl", PRO_BOOL, true, ON, &procnames_start_line }, 142 {"ps", PRO_BOOL, false, ON, &pointer_as_binop }, 143 {"sc", PRO_BOOL, true, ON, &star_comment_cont }, 144 {"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines }, 145 {"st", PRO_SPECIAL, 0, STDIN, 0 }, 146 {"troff", PRO_BOOL, false, ON, &troff }, 147 {"ut", PRO_BOOL, true, ON, &use_tabs}, 148 {"v", PRO_BOOL, false, ON, &verbose }, 149 /* whew! */ 150 { 0, 0, 0, 0, 0 } 151 }; 152 153 void scan_profile(FILE *); 154 void set_option(char *); 155 156 /* 157 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments 158 * given in these files. 159 */ 160 void 161 set_profile(void) 162 { 163 FILE *f; 164 char fname[BUFSIZ]; 165 char *home; 166 static char prof[] = ".indent.pro"; 167 168 home = getenv("HOME"); 169 if (home != NULL && *home != '\0') { 170 if (snprintf(fname, sizeof fname, "%s/%s", home, prof) >= sizeof fname) { 171 warnc(ENAMETOOLONG, "%s/%s", home, prof); 172 return; 173 } 174 if ((f = fopen(option_source = fname, "r")) != NULL) { 175 scan_profile(f); 176 (void) fclose(f); 177 } 178 } 179 if ((f = fopen(option_source = prof, "r")) != NULL) { 180 scan_profile(f); 181 (void) fclose(f); 182 } 183 option_source = "Command line"; 184 } 185 186 void 187 scan_profile(FILE *f) 188 { 189 int i; 190 char *p; 191 char buf[BUFSIZ]; 192 193 while (1) { 194 for (p = buf; 195 (i = getc(f)) != EOF && (*p = i) > ' ' && p + 1 - buf < BUFSIZ; 196 ++p) 197 ; 198 if (p != buf) { 199 *p = 0; 200 if (verbose) 201 printf("profile: %s\n", buf); 202 set_option(buf); 203 } 204 else if (i == EOF) 205 return; 206 } 207 } 208 209 char *param_start; 210 211 int 212 eqin(char *s1, char *s2) 213 { 214 while (*s1) { 215 if (*s1++ != *s2++) 216 return (false); 217 } 218 param_start = s2; 219 return (true); 220 } 221 222 /* 223 * Set the defaults. 224 */ 225 void 226 set_defaults(void) 227 { 228 struct pro *p; 229 230 /* 231 * Because ps.case_indent is a float, we can't initialize it from the 232 * table: 233 */ 234 ps.case_indent = 0.0; /* -cli0.0 */ 235 for (p = pro; p->p_name; p++) 236 if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT) 237 *p->p_obj = p->p_default; 238 } 239 240 void 241 set_option(char *arg) 242 { 243 struct pro *p; 244 245 arg++; /* ignore leading "-" */ 246 for (p = pro; p->p_name; p++) 247 if (*p->p_name == *arg && eqin(p->p_name, arg)) 248 goto found; 249 errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1); 250 found: 251 switch (p->p_type) { 252 253 case PRO_SPECIAL: 254 switch (p->p_special) { 255 256 case IGN: 257 break; 258 259 case CLI: 260 if (*param_start == 0) 261 goto need_param; 262 ps.case_indent = atof(param_start); 263 break; 264 265 case STDIN: 266 if (input == 0) 267 input = stdin; 268 if (output == 0) 269 output = stdout; 270 break; 271 272 case KEY: 273 if (*param_start == 0) 274 goto need_param; 275 { 276 char *str; 277 if ((str = strdup(param_start)) == NULL) 278 err(1, NULL); 279 addkey(str, 4); 280 } 281 break; 282 283 default: 284 errx(1, "set_option: internal error: p_special %d", p->p_special); 285 } 286 break; 287 288 case PRO_BOOL: 289 if (p->p_special == OFF) 290 *p->p_obj = false; 291 else 292 *p->p_obj = true; 293 break; 294 295 case PRO_INT: 296 if (!isdigit((unsigned char)*param_start)) { 297 need_param: 298 errx(1, "%s: ``%s'' requires a parameter", option_source, arg - 1); 299 } 300 *p->p_obj = atoi(param_start); 301 if (*p->p_name == 'i' && *p->p_obj <= 0) 302 errx(1, "%s: ``%s must be greater of zero''", 303 option_source, arg - 1); 304 break; 305 306 case PRO_FONT: 307 parsefont((struct fstate *) p->p_obj, param_start); 308 break; 309 310 default: 311 errx(1, "set_option: internal error: p_type %d", p->p_type); 312 } 313 } 314