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. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 38 #if 0 39 #endif 40 41 #include <sys/cdefs.h> 42 /* 43 * Argument scanning and profile reading code. Default parameters are set 44 * here as well. 45 */ 46 47 #include <ctype.h> 48 #include <err.h> 49 #include <limits.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include "indent_globs.h" 54 #include "indent.h" 55 56 #define INDENT_VERSION "2.0" 57 58 /* profile types */ 59 #define PRO_SPECIAL 1 /* special case */ 60 #define PRO_BOOL 2 /* boolean */ 61 #define PRO_INT 3 /* integer */ 62 63 /* profile specials for booleans */ 64 #define ON 1 /* turn it on */ 65 #define OFF 0 /* turn it off */ 66 67 /* profile specials for specials */ 68 #define IGN 1 /* ignore it */ 69 #define CLI 2 /* case label indent (float) */ 70 #define STDIN 3 /* use stdin */ 71 #define KEY 4 /* type (keyword) */ 72 73 static void scan_profile(FILE *); 74 75 #define KEY_FILE 5 /* only used for args */ 76 #define VERSION 6 /* only used for args */ 77 78 const char *option_source = "?"; 79 80 void add_typedefs_from_file(const char *str); 81 82 /* 83 * N.B.: because of the way the table here is scanned, options whose names are 84 * substrings of other options must occur later; that is, with -lp vs -l, -lp 85 * must be first. Also, while (most) booleans occur more than once, the last 86 * default value is the one actually assigned. 87 */ 88 struct pro { 89 const char *p_name; /* name, e.g. -bl, -cli */ 90 int p_type; /* type (int, bool, special) */ 91 int p_default; /* the default value (if int) */ 92 int p_special; /* depends on type */ 93 int *p_obj; /* the associated variable */ 94 } pro[] = { 95 96 {"T", PRO_SPECIAL, 0, KEY, 0}, 97 {"U", PRO_SPECIAL, 0, KEY_FILE, 0}, 98 {"-version", PRO_SPECIAL, 0, VERSION, 0}, 99 {"P", PRO_SPECIAL, 0, IGN, 0}, 100 {"bacc", PRO_BOOL, false, ON, &opt.blanklines_around_conditional_compilation}, 101 {"badp", PRO_BOOL, false, ON, &opt.blanklines_after_declarations_at_proctop}, 102 {"bad", PRO_BOOL, false, ON, &opt.blanklines_after_declarations}, 103 {"bap", PRO_BOOL, false, ON, &opt.blanklines_after_procs}, 104 {"bbb", PRO_BOOL, false, ON, &opt.blanklines_before_blockcomments}, 105 {"bc", PRO_BOOL, true, OFF, &opt.leave_comma}, 106 {"bl", PRO_BOOL, true, OFF, &opt.btype_2}, 107 {"br", PRO_BOOL, true, ON, &opt.btype_2}, 108 {"bs", PRO_BOOL, false, ON, &opt.Bill_Shannon}, 109 {"cdb", PRO_BOOL, true, ON, &opt.comment_delimiter_on_blankline}, 110 {"cd", PRO_INT, 0, 0, &opt.decl_com_ind}, 111 {"ce", PRO_BOOL, true, ON, &opt.cuddle_else}, 112 {"ci", PRO_INT, 0, 0, &opt.continuation_indent}, 113 {"cli", PRO_SPECIAL, 0, CLI, 0}, 114 {"cs", PRO_BOOL, false, ON, &opt.space_after_cast}, 115 {"c", PRO_INT, 33, 0, &opt.com_ind}, 116 {"di", PRO_INT, 16, 0, &opt.decl_indent}, 117 {"dj", PRO_BOOL, false, ON, &opt.ljust_decl}, 118 {"d", PRO_INT, 0, 0, &opt.unindent_displace}, 119 {"eei", PRO_BOOL, false, ON, &opt.extra_expression_indent}, 120 {"ei", PRO_BOOL, true, ON, &opt.else_if}, 121 {"fbs", PRO_BOOL, true, ON, &opt.function_brace_split}, 122 {"fc1", PRO_BOOL, true, ON, &opt.format_col1_comments}, 123 {"fcb", PRO_BOOL, true, ON, &opt.format_block_comments}, 124 {"ip", PRO_BOOL, true, ON, &opt.indent_parameters}, 125 {"i", PRO_INT, 8, 0, &opt.ind_size}, 126 {"lc", PRO_INT, 0, 0, &opt.block_comment_max_col}, 127 {"ldi", PRO_INT, -1, 0, &opt.local_decl_indent}, 128 {"lpl", PRO_BOOL, false, ON, &opt.lineup_to_parens_always}, 129 {"lp", PRO_BOOL, true, ON, &opt.lineup_to_parens}, 130 {"l", PRO_INT, 78, 0, &opt.max_col}, 131 {"nbacc", PRO_BOOL, false, OFF, &opt.blanklines_around_conditional_compilation}, 132 {"nbadp", PRO_BOOL, false, OFF, &opt.blanklines_after_declarations_at_proctop}, 133 {"nbad", PRO_BOOL, false, OFF, &opt.blanklines_after_declarations}, 134 {"nbap", PRO_BOOL, false, OFF, &opt.blanklines_after_procs}, 135 {"nbbb", PRO_BOOL, false, OFF, &opt.blanklines_before_blockcomments}, 136 {"nbc", PRO_BOOL, true, ON, &opt.leave_comma}, 137 {"nbs", PRO_BOOL, false, OFF, &opt.Bill_Shannon}, 138 {"ncdb", PRO_BOOL, true, OFF, &opt.comment_delimiter_on_blankline}, 139 {"nce", PRO_BOOL, true, OFF, &opt.cuddle_else}, 140 {"ncs", PRO_BOOL, false, OFF, &opt.space_after_cast}, 141 {"ndj", PRO_BOOL, false, OFF, &opt.ljust_decl}, 142 {"neei", PRO_BOOL, false, OFF, &opt.extra_expression_indent}, 143 {"nei", PRO_BOOL, true, OFF, &opt.else_if}, 144 {"nfbs", PRO_BOOL, true, OFF, &opt.function_brace_split}, 145 {"nfc1", PRO_BOOL, true, OFF, &opt.format_col1_comments}, 146 {"nfcb", PRO_BOOL, true, OFF, &opt.format_block_comments}, 147 {"nip", PRO_BOOL, true, OFF, &opt.indent_parameters}, 148 {"nlpl", PRO_BOOL, false, OFF, &opt.lineup_to_parens_always}, 149 {"nlp", PRO_BOOL, true, OFF, &opt.lineup_to_parens}, 150 {"npcs", PRO_BOOL, false, OFF, &opt.proc_calls_space}, 151 {"npro", PRO_SPECIAL, 0, IGN, 0}, 152 {"npsl", PRO_BOOL, true, OFF, &opt.procnames_start_line}, 153 {"nps", PRO_BOOL, false, OFF, &opt.pointer_as_binop}, 154 {"nsc", PRO_BOOL, true, OFF, &opt.star_comment_cont}, 155 {"nsob", PRO_BOOL, false, OFF, &opt.swallow_optional_blanklines}, 156 {"nut", PRO_BOOL, true, OFF, &opt.use_tabs}, 157 {"nv", PRO_BOOL, false, OFF, &opt.verbose}, 158 {"pcs", PRO_BOOL, false, ON, &opt.proc_calls_space}, 159 {"psl", PRO_BOOL, true, ON, &opt.procnames_start_line}, 160 {"ps", PRO_BOOL, false, ON, &opt.pointer_as_binop}, 161 {"sc", PRO_BOOL, true, ON, &opt.star_comment_cont}, 162 {"sob", PRO_BOOL, false, ON, &opt.swallow_optional_blanklines}, 163 {"st", PRO_SPECIAL, 0, STDIN, 0}, 164 {"ta", PRO_BOOL, false, ON, &opt.auto_typedefs}, 165 {"ts", PRO_INT, 8, 0, &opt.tabsize}, 166 {"ut", PRO_BOOL, true, ON, &opt.use_tabs}, 167 {"v", PRO_BOOL, false, ON, &opt.verbose}, 168 /* whew! */ 169 {0, 0, 0, 0, 0} 170 }; 171 172 /* 173 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments 174 * given in these files. 175 */ 176 void 177 set_profile(const char *profile_name) 178 { 179 FILE *f; 180 char fname[PATH_MAX]; 181 static char prof[] = ".indent.pro"; 182 183 if (profile_name == NULL) 184 snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof); 185 else 186 snprintf(fname, sizeof(fname), "%s", profile_name + 2); 187 if ((f = fopen(option_source = fname, "r")) != NULL) { 188 scan_profile(f); 189 (void) fclose(f); 190 } 191 if ((f = fopen(option_source = prof, "r")) != NULL) { 192 scan_profile(f); 193 (void) fclose(f); 194 } 195 option_source = "Command line"; 196 } 197 198 static void 199 scan_profile(FILE *f) 200 { 201 int comment, i; 202 char *p; 203 char buf[BUFSIZ]; 204 205 while (1) { 206 p = buf; 207 comment = 0; 208 while ((i = getc(f)) != EOF) { 209 if (i == '*' && !comment && p > buf && p[-1] == '/') { 210 comment = p - buf; 211 *p++ = i; 212 } else if (i == '/' && comment && p > buf && p[-1] == '*') { 213 p = buf + comment - 1; 214 comment = 0; 215 } else if (isspace((unsigned char)i)) { 216 if (p > buf && !comment) 217 break; 218 } else { 219 *p++ = i; 220 } 221 } 222 if (p != buf) { 223 *p++ = 0; 224 if (opt.verbose) 225 printf("profile: %s\n", buf); 226 set_option(buf); 227 } 228 else if (i == EOF) 229 return; 230 } 231 } 232 233 static const char * 234 eqin(const char *s1, const char *s2) 235 { 236 while (*s1) { 237 if (*s1++ != *s2++) 238 return (NULL); 239 } 240 return (s2); 241 } 242 243 /* 244 * Set the defaults. 245 */ 246 void 247 set_defaults(void) 248 { 249 struct pro *p; 250 251 /* 252 * Because ps.case_indent is a float, we can't initialize it from the 253 * table: 254 */ 255 opt.case_indent = 0.0; /* -cli0.0 */ 256 for (p = pro; p->p_name; p++) 257 if (p->p_type != PRO_SPECIAL) 258 *p->p_obj = p->p_default; 259 } 260 261 void 262 set_option(char *arg) 263 { 264 struct pro *p; 265 const char *param_start; 266 267 arg++; /* ignore leading "-" */ 268 for (p = pro; p->p_name; p++) 269 if (*p->p_name == *arg && (param_start = eqin(p->p_name, arg)) != NULL) 270 goto found; 271 errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1); 272 found: 273 switch (p->p_type) { 274 275 case PRO_SPECIAL: 276 switch (p->p_special) { 277 278 case IGN: 279 break; 280 281 case CLI: 282 if (*param_start == 0) 283 goto need_param; 284 opt.case_indent = atof(param_start); 285 break; 286 287 case STDIN: 288 if (input == NULL) 289 input = stdin; 290 if (output == NULL) 291 output = stdout; 292 break; 293 294 case KEY: 295 if (*param_start == 0) 296 goto need_param; 297 add_typename(param_start); 298 break; 299 300 case KEY_FILE: 301 if (*param_start == 0) 302 goto need_param; 303 add_typedefs_from_file(param_start); 304 break; 305 306 case VERSION: 307 printf("FreeBSD indent %s\n", INDENT_VERSION); 308 exit(0); 309 310 default: 311 errx(1, "set_option: internal error: p_special %d", p->p_special); 312 } 313 break; 314 315 case PRO_BOOL: 316 if (p->p_special == OFF) 317 *p->p_obj = false; 318 else 319 *p->p_obj = true; 320 break; 321 322 case PRO_INT: 323 if (!isdigit((unsigned char)*param_start)) { 324 need_param: 325 errx(1, "%s: ``%s'' requires a parameter", option_source, p->p_name); 326 } 327 *p->p_obj = atoi(param_start); 328 break; 329 330 default: 331 errx(1, "set_option: internal error: p_type %d", p->p_type); 332 } 333 } 334 335 void 336 add_typedefs_from_file(const char *str) 337 { 338 FILE *file; 339 char line[BUFSIZ]; 340 341 if ((file = fopen(str, "r")) == NULL) { 342 fprintf(stderr, "indent: cannot open file %s\n", str); 343 exit(1); 344 } 345 while ((fgets(line, BUFSIZ, file)) != NULL) { 346 /* Remove trailing whitespace */ 347 line[strcspn(line, " \t\n\r")] = '\0'; 348 add_typename(line); 349 } 350 fclose(file); 351 } 352