1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1985 Sun Microsystems, Inc. 5 * Copyright (c) 1980, 1993 6 * The Regents of the University of California. All rights reserved. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)args.c 8.1 (Berkeley) 6/6/93 34 * $FreeBSD: head/usr.bin/indent/args.c 336318 2018-07-15 21:04:21Z pstef $ 35 */ 36 37 /* 38 * Argument scanning and profile reading code. Default parameters are set 39 * here as well. 40 */ 41 42 #include <ctype.h> 43 #include <err.h> 44 #include <limits.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include "indent_globs.h" 49 #include "indent.h" 50 51 #define INDENT_VERSION "2.0" 52 53 /* profile types */ 54 #define PRO_SPECIAL 1 /* special case */ 55 #define PRO_BOOL 2 /* boolean */ 56 #define PRO_INT 3 /* integer */ 57 58 /* profile specials for booleans */ 59 #define ON 1 /* turn it on */ 60 #define OFF 0 /* turn it off */ 61 62 /* profile specials for specials */ 63 #define IGN 1 /* ignore it */ 64 #define CLI 2 /* case label indent (float) */ 65 #define STDIN 3 /* use stdin */ 66 #define KEY 4 /* type (keyword) */ 67 68 static void scan_profile(FILE *); 69 70 #define KEY_FILE 5 /* only used for args */ 71 #define VERSION 6 /* only used for args */ 72 73 const char *option_source = "?"; 74 75 void add_typedefs_from_file(const char *str); 76 77 /* 78 * N.B.: because of the way the table here is scanned, options whose names are 79 * substrings of other options must occur later; that is, with -lp vs -l, -lp 80 * must be first. Also, while (most) booleans occur more than once, the last 81 * default value is the one actually assigned. 82 */ 83 struct pro { 84 const char *p_name; /* name, e.g. -bl, -cli */ 85 int p_type; /* type (int, bool, special) */ 86 int p_default; /* the default value (if int) */ 87 int p_special; /* depends on type */ 88 int *p_obj; /* the associated variable */ 89 } pro[] = { 90 91 {"T", PRO_SPECIAL, 0, KEY, 0}, 92 {"U", PRO_SPECIAL, 0, KEY_FILE, 0}, 93 {"-version", PRO_SPECIAL, 0, VERSION, 0}, 94 {"P", PRO_SPECIAL, 0, IGN, 0}, 95 {"bacc", PRO_BOOL, false, ON, &opt.blanklines_around_conditional_compilation}, 96 {"badp", PRO_BOOL, false, ON, &opt.blanklines_after_declarations_at_proctop}, 97 {"bad", PRO_BOOL, false, ON, &opt.blanklines_after_declarations}, 98 {"bap", PRO_BOOL, false, ON, &opt.blanklines_after_procs}, 99 {"bbb", PRO_BOOL, false, ON, &opt.blanklines_before_blockcomments}, 100 {"bc", PRO_BOOL, true, OFF, &opt.leave_comma}, 101 {"bl", PRO_BOOL, true, OFF, &opt.btype_2}, 102 {"br", PRO_BOOL, true, ON, &opt.btype_2}, 103 {"bs", PRO_BOOL, false, ON, &opt.Bill_Shannon}, 104 {"cdb", PRO_BOOL, true, ON, &opt.comment_delimiter_on_blankline}, 105 {"cd", PRO_INT, 0, 0, &opt.decl_com_ind}, 106 {"ce", PRO_BOOL, true, ON, &opt.cuddle_else}, 107 {"ci", PRO_INT, 0, 0, &opt.continuation_indent}, 108 {"cli", PRO_SPECIAL, 0, CLI, 0}, 109 {"cs", PRO_BOOL, false, ON, &opt.space_after_cast}, 110 {"c", PRO_INT, 33, 0, &opt.com_ind}, 111 {"di", PRO_INT, 16, 0, &opt.decl_indent}, 112 {"dj", PRO_BOOL, false, ON, &opt.ljust_decl}, 113 {"d", PRO_INT, 0, 0, &opt.unindent_displace}, 114 {"eei", PRO_BOOL, false, ON, &opt.extra_expression_indent}, 115 {"ei", PRO_BOOL, true, ON, &opt.else_if}, 116 {"fbs", PRO_BOOL, true, ON, &opt.function_brace_split}, 117 {"fc1", PRO_BOOL, true, ON, &opt.format_col1_comments}, 118 {"fcb", PRO_BOOL, true, ON, &opt.format_block_comments}, 119 {"ip", PRO_BOOL, true, ON, &opt.indent_parameters}, 120 {"i", PRO_INT, 8, 0, &opt.ind_size}, 121 {"lc", PRO_INT, 0, 0, &opt.block_comment_max_col}, 122 {"ldi", PRO_INT, -1, 0, &opt.local_decl_indent}, 123 {"lpl", PRO_BOOL, false, ON, &opt.lineup_to_parens_always}, 124 {"lp", PRO_BOOL, true, ON, &opt.lineup_to_parens}, 125 {"l", PRO_INT, 78, 0, &opt.max_col}, 126 {"nbacc", PRO_BOOL, false, OFF, &opt.blanklines_around_conditional_compilation}, 127 {"nbadp", PRO_BOOL, false, OFF, &opt.blanklines_after_declarations_at_proctop}, 128 {"nbad", PRO_BOOL, false, OFF, &opt.blanklines_after_declarations}, 129 {"nbap", PRO_BOOL, false, OFF, &opt.blanklines_after_procs}, 130 {"nbbb", PRO_BOOL, false, OFF, &opt.blanklines_before_blockcomments}, 131 {"nbc", PRO_BOOL, true, ON, &opt.leave_comma}, 132 {"nbs", PRO_BOOL, false, OFF, &opt.Bill_Shannon}, 133 {"ncdb", PRO_BOOL, true, OFF, &opt.comment_delimiter_on_blankline}, 134 {"nce", PRO_BOOL, true, OFF, &opt.cuddle_else}, 135 {"ncs", PRO_BOOL, false, OFF, &opt.space_after_cast}, 136 {"ndj", PRO_BOOL, false, OFF, &opt.ljust_decl}, 137 {"neei", PRO_BOOL, false, OFF, &opt.extra_expression_indent}, 138 {"nei", PRO_BOOL, true, OFF, &opt.else_if}, 139 {"nfbs", PRO_BOOL, true, OFF, &opt.function_brace_split}, 140 {"nfc1", PRO_BOOL, true, OFF, &opt.format_col1_comments}, 141 {"nfcb", PRO_BOOL, true, OFF, &opt.format_block_comments}, 142 {"nip", PRO_BOOL, true, OFF, &opt.indent_parameters}, 143 {"nlpl", PRO_BOOL, false, OFF, &opt.lineup_to_parens_always}, 144 {"nlp", PRO_BOOL, true, OFF, &opt.lineup_to_parens}, 145 {"npcs", PRO_BOOL, false, OFF, &opt.proc_calls_space}, 146 {"npro", PRO_SPECIAL, 0, IGN, 0}, 147 {"npsl", PRO_BOOL, true, OFF, &opt.procnames_start_line}, 148 {"nsc", PRO_BOOL, true, OFF, &opt.star_comment_cont}, 149 {"nsob", PRO_BOOL, false, OFF, &opt.swallow_optional_blanklines}, 150 {"nut", PRO_BOOL, true, OFF, &opt.use_tabs}, 151 {"nv", PRO_BOOL, false, OFF, &opt.verbose}, 152 {"pcs", PRO_BOOL, false, ON, &opt.proc_calls_space}, 153 {"psl", PRO_BOOL, true, ON, &opt.procnames_start_line}, 154 {"sc", PRO_BOOL, true, ON, &opt.star_comment_cont}, 155 {"sob", PRO_BOOL, false, ON, &opt.swallow_optional_blanklines}, 156 {"st", PRO_SPECIAL, 0, STDIN, 0}, 157 {"ta", PRO_BOOL, false, ON, &opt.auto_typedefs}, 158 {"ts", PRO_INT, 8, 0, &opt.tabsize}, 159 {"ut", PRO_BOOL, true, ON, &opt.use_tabs}, 160 {"v", PRO_BOOL, false, ON, &opt.verbose}, 161 /* whew! */ 162 {0, 0, 0, 0, 0} 163 }; 164 165 /* 166 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments 167 * given in these files. 168 */ 169 void 170 set_profile(const char *profile_name) 171 { 172 FILE *f; 173 char fname[PATH_MAX]; 174 static char prof[] = ".indent.pro"; 175 176 if (profile_name == NULL) 177 snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof); 178 else 179 snprintf(fname, sizeof(fname), "%s", profile_name + 2); 180 if ((f = fopen(option_source = fname, "r")) != NULL) { 181 scan_profile(f); 182 (void) fclose(f); 183 } 184 if ((f = fopen(option_source = prof, "r")) != NULL) { 185 scan_profile(f); 186 (void) fclose(f); 187 } 188 option_source = "Command line"; 189 } 190 191 static void 192 scan_profile(FILE *f) 193 { 194 int comment, i; 195 char *p; 196 char buf[BUFSIZ]; 197 198 while (1) { 199 p = buf; 200 comment = 0; 201 while ((i = getc(f)) != EOF) { 202 if (i == '*' && !comment && p > buf && p[-1] == '/') { 203 comment = p - buf; 204 *p++ = i; 205 } else if (i == '/' && comment && p > buf && p[-1] == '*') { 206 p = buf + comment - 1; 207 comment = 0; 208 } else if (isspace((unsigned char)i)) { 209 if (p > buf && !comment) 210 break; 211 } else { 212 *p++ = i; 213 } 214 } 215 if (p != buf) { 216 *p++ = 0; 217 if (opt.verbose) 218 printf("profile: %s\n", buf); 219 set_option(buf); 220 } 221 else if (i == EOF) 222 return; 223 } 224 } 225 226 static const char * 227 eqin(const char *s1, const char *s2) 228 { 229 while (*s1) { 230 if (*s1++ != *s2++) 231 return (NULL); 232 } 233 return (s2); 234 } 235 236 /* 237 * Set the defaults. 238 */ 239 void 240 set_defaults(void) 241 { 242 struct pro *p; 243 244 /* 245 * Because ps.case_indent is a float, we can't initialize it from the 246 * table: 247 */ 248 opt.case_indent = 0.0; /* -cli0.0 */ 249 for (p = pro; p->p_name; p++) 250 if (p->p_type != PRO_SPECIAL) 251 *p->p_obj = p->p_default; 252 } 253 254 void 255 set_option(char *arg) 256 { 257 struct pro *p; 258 const char *param_start; 259 260 arg++; /* ignore leading "-" */ 261 for (p = pro; p->p_name; p++) 262 if (*p->p_name == *arg && (param_start = eqin(p->p_name, arg)) != NULL) 263 goto found; 264 errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1); 265 found: 266 switch (p->p_type) { 267 268 case PRO_SPECIAL: 269 switch (p->p_special) { 270 271 case IGN: 272 break; 273 274 case CLI: 275 if (*param_start == 0) 276 goto need_param; 277 opt.case_indent = atof(param_start); 278 break; 279 280 case STDIN: 281 if (input == NULL) 282 input = stdin; 283 if (output == NULL) 284 output = stdout; 285 break; 286 287 case KEY: 288 if (*param_start == 0) 289 goto need_param; 290 add_typename(param_start); 291 break; 292 293 case KEY_FILE: 294 if (*param_start == 0) 295 goto need_param; 296 add_typedefs_from_file(param_start); 297 break; 298 299 case VERSION: 300 printf("FreeBSD indent %s\n", INDENT_VERSION); 301 exit(0); 302 303 default: 304 errx(1, "set_option: internal error: p_special %d", p->p_special); 305 } 306 break; 307 308 case PRO_BOOL: 309 if (p->p_special == OFF) 310 *p->p_obj = false; 311 else 312 *p->p_obj = true; 313 break; 314 315 case PRO_INT: 316 if (!isdigit((unsigned char)*param_start)) { 317 need_param: 318 errx(1, "%s: ``%s'' requires a parameter", option_source, p->p_name); 319 } 320 *p->p_obj = atoi(param_start); 321 break; 322 323 default: 324 errx(1, "set_option: internal error: p_type %d", p->p_type); 325 } 326 } 327 328 void 329 add_typedefs_from_file(const char *str) 330 { 331 FILE *file; 332 char line[BUFSIZ]; 333 334 if ((file = fopen(str, "r")) == NULL) { 335 fprintf(stderr, "indent: cannot open file %s\n", str); 336 exit(1); 337 } 338 while ((fgets(line, BUFSIZ, file)) != NULL) { 339 /* Remove trailing whitespace */ 340 line[strcspn(line, " \t\n\r")] = '\0'; 341 add_typename(line); 342 } 343 fclose(file); 344 } 345