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 #ifndef lint 40 static char sccsid[] = "@(#)args.c 8.1 (Berkeley) 6/6/93"; 41 #endif /* not lint */ 42 #endif 43 44 #include <sys/cdefs.h> 45 __FBSDID("$FreeBSD$"); 46 47 /* 48 * Argument scanning and profile reading code. Default parameters are set 49 * here as well. 50 */ 51 52 #include <ctype.h> 53 #include <err.h> 54 #include <limits.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 #include <string.h> 58 #include "indent_globs.h" 59 #include "indent.h" 60 61 /* profile types */ 62 #define PRO_SPECIAL 1 /* special case */ 63 #define PRO_BOOL 2 /* boolean */ 64 #define PRO_INT 3 /* integer */ 65 66 /* profile specials for booleans */ 67 #define ON 1 /* turn it on */ 68 #define OFF 0 /* turn it off */ 69 70 /* profile specials for specials */ 71 #define IGN 1 /* ignore it */ 72 #define CLI 2 /* case label indent (float) */ 73 #define STDIN 3 /* use stdin */ 74 #define KEY 4 /* type (keyword) */ 75 76 static void scan_profile(FILE *); 77 78 #define KEY_FILE 5 /* only used for args */ 79 80 const char *option_source = "?"; 81 82 void add_typedefs_from_file(const char *str); 83 84 /* 85 * N.B.: because of the way the table here is scanned, options whose names are 86 * substrings of other options must occur later; that is, with -lp vs -l, -lp 87 * must be first. Also, while (most) booleans occur more than once, the last 88 * default value is the one actually assigned. 89 */ 90 struct pro { 91 const char *p_name; /* name, e.g. -bl, -cli */ 92 int p_type; /* type (int, bool, special) */ 93 int p_default; /* the default value (if int) */ 94 int p_special; /* depends on type */ 95 int *p_obj; /* the associated variable */ 96 } pro[] = { 97 98 {"T", PRO_SPECIAL, 0, KEY, 0}, 99 {"U", PRO_SPECIAL, 0, KEY_FILE, 0}, 100 {"P", PRO_SPECIAL, 0, IGN, 0}, 101 {"bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation}, 102 {"badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop}, 103 {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations}, 104 {"bap", PRO_BOOL, false, ON, &blanklines_after_procs}, 105 {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments}, 106 {"bc", PRO_BOOL, true, OFF, &ps.leave_comma}, 107 {"bl", PRO_BOOL, true, OFF, &btype_2}, 108 {"br", PRO_BOOL, true, ON, &btype_2}, 109 {"bs", PRO_BOOL, false, ON, &Bill_Shannon}, 110 {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline}, 111 {"cd", PRO_INT, 0, 0, &ps.decl_com_ind}, 112 {"ce", PRO_BOOL, true, ON, &cuddle_else}, 113 {"ci", PRO_INT, 0, 0, &continuation_indent}, 114 {"cli", PRO_SPECIAL, 0, CLI, 0}, 115 {"c", PRO_INT, 33, 0, &ps.com_ind}, 116 {"di", PRO_INT, 16, 0, &ps.decl_indent}, 117 {"dj", PRO_BOOL, false, ON, &ps.ljust_decl}, 118 {"d", PRO_INT, 0, 0, &ps.unindent_displace}, 119 {"eei", PRO_BOOL, false, ON, &extra_expression_indent}, 120 {"ei", PRO_BOOL, true, ON, &ps.else_if}, 121 {"fbs", PRO_BOOL, true, ON, &function_brace_split}, 122 {"fc1", PRO_BOOL, true, ON, &format_col1_comments}, 123 {"fcb", PRO_BOOL, true, ON, &format_block_comments}, 124 {"ip", PRO_BOOL, true, ON, &ps.indent_parameters}, 125 {"i", PRO_INT, 8, 0, &ps.ind_size}, 126 {"lc", PRO_INT, 0, 0, &block_comment_max_col}, 127 {"ldi", PRO_INT, -1, 0, &ps.local_decl_indent}, 128 {"lpl", PRO_BOOL, false, ON, &lineup_to_parens_always}, 129 {"lp", PRO_BOOL, true, ON, &lineup_to_parens}, 130 {"l", PRO_INT, 78, 0, &max_col}, 131 {"nbacc", PRO_BOOL, false, OFF, &blanklines_around_conditional_compilation}, 132 {"nbadp", PRO_BOOL, false, OFF, &blanklines_after_declarations_at_proctop}, 133 {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations}, 134 {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs}, 135 {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments}, 136 {"nbc", PRO_BOOL, true, ON, &ps.leave_comma}, 137 {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon}, 138 {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline}, 139 {"nce", PRO_BOOL, true, OFF, &cuddle_else}, 140 {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl}, 141 {"neei", PRO_BOOL, false, OFF, &extra_expression_indent}, 142 {"nei", PRO_BOOL, true, OFF, &ps.else_if}, 143 {"nfbs", PRO_BOOL, true, OFF, &function_brace_split}, 144 {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments}, 145 {"nfcb", PRO_BOOL, true, OFF, &format_block_comments}, 146 {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters}, 147 {"nlpl", PRO_BOOL, false, OFF, &lineup_to_parens_always}, 148 {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens}, 149 {"npcs", PRO_BOOL, false, OFF, &proc_calls_space}, 150 {"npro", PRO_SPECIAL, 0, IGN, 0}, 151 {"npsl", PRO_BOOL, true, OFF, &procnames_start_line}, 152 {"nsac", PRO_BOOL, false, OFF, &space_after_cast}, 153 {"nsc", PRO_BOOL, true, OFF, &star_comment_cont}, 154 {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines}, 155 {"nut", PRO_BOOL, true, OFF, &use_tabs}, 156 {"nv", PRO_BOOL, false, OFF, &verbose}, 157 {"pcs", PRO_BOOL, false, ON, &proc_calls_space}, 158 {"psl", PRO_BOOL, true, ON, &procnames_start_line}, 159 {"sac", PRO_BOOL, false, ON, &space_after_cast}, 160 {"sc", PRO_BOOL, true, ON, &star_comment_cont}, 161 {"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines}, 162 {"st", PRO_SPECIAL, 0, STDIN, 0}, 163 {"ta", PRO_BOOL, false, ON, &auto_typedefs}, 164 {"ts", PRO_INT, 8, 0, &tabsize}, 165 {"ut", PRO_BOOL, true, ON, &use_tabs}, 166 {"v", PRO_BOOL, false, ON, &verbose}, 167 /* whew! */ 168 {0, 0, 0, 0, 0} 169 }; 170 171 /* 172 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments 173 * given in these files. 174 */ 175 void 176 set_profile(const char *profile_name) 177 { 178 FILE *f; 179 char fname[PATH_MAX]; 180 static char prof[] = ".indent.pro"; 181 182 if (profile_name == NULL) 183 snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof); 184 else 185 snprintf(fname, sizeof(fname), "%s", profile_name + 2); 186 if ((f = fopen(option_source = fname, "r")) != NULL) { 187 scan_profile(f); 188 (void) fclose(f); 189 } 190 if ((f = fopen(option_source = prof, "r")) != NULL) { 191 scan_profile(f); 192 (void) fclose(f); 193 } 194 option_source = "Command line"; 195 } 196 197 static void 198 scan_profile(FILE *f) 199 { 200 int comment, i; 201 char *p; 202 char buf[BUFSIZ]; 203 204 while (1) { 205 p = buf; 206 comment = 0; 207 while ((i = getc(f)) != EOF) { 208 if (i == '*' && !comment && p > buf && p[-1] == '/') { 209 comment = p - buf; 210 *p++ = i; 211 } else if (i == '/' && comment && p > buf && p[-1] == '*') { 212 p = buf + comment - 1; 213 comment = 0; 214 } else if (isspace((unsigned char)i)) { 215 if (p > buf && !comment) 216 break; 217 } else { 218 *p++ = i; 219 } 220 } 221 if (p != buf) { 222 *p++ = 0; 223 if (verbose) 224 printf("profile: %s\n", buf); 225 set_option(buf); 226 } 227 else if (i == EOF) 228 return; 229 } 230 } 231 232 static const char * 233 eqin(const char *s1, const char *s2) 234 { 235 while (*s1) { 236 if (*s1++ != *s2++) 237 return (NULL); 238 } 239 return (s2); 240 } 241 242 /* 243 * Set the defaults. 244 */ 245 void 246 set_defaults(void) 247 { 248 struct pro *p; 249 250 /* 251 * Because ps.case_indent is a float, we can't initialize it from the 252 * table: 253 */ 254 ps.case_indent = 0.0; /* -cli0.0 */ 255 for (p = pro; p->p_name; p++) 256 if (p->p_type != PRO_SPECIAL) 257 *p->p_obj = p->p_default; 258 } 259 260 void 261 set_option(char *arg) 262 { 263 struct pro *p; 264 const char *param_start; 265 266 arg++; /* ignore leading "-" */ 267 for (p = pro; p->p_name; p++) 268 if (*p->p_name == *arg && (param_start = eqin(p->p_name, arg)) != NULL) 269 goto found; 270 errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1); 271 found: 272 switch (p->p_type) { 273 274 case PRO_SPECIAL: 275 switch (p->p_special) { 276 277 case IGN: 278 break; 279 280 case CLI: 281 if (*param_start == 0) 282 goto need_param; 283 ps.case_indent = atof(param_start); 284 break; 285 286 case STDIN: 287 if (input == NULL) 288 input = stdin; 289 if (output == NULL) 290 output = stdout; 291 break; 292 293 case KEY: 294 if (*param_start == 0) 295 goto need_param; 296 add_typename(param_start); 297 break; 298 299 case KEY_FILE: 300 if (*param_start == 0) 301 goto need_param; 302 add_typedefs_from_file(param_start); 303 break; 304 305 default: 306 errx(1, "set_option: internal error: p_special %d", p->p_special); 307 } 308 break; 309 310 case PRO_BOOL: 311 if (p->p_special == OFF) 312 *p->p_obj = false; 313 else 314 *p->p_obj = true; 315 break; 316 317 case PRO_INT: 318 if (!isdigit((unsigned char)*param_start)) { 319 need_param: 320 errx(1, "%s: ``%s'' requires a parameter", option_source, p->p_name); 321 } 322 *p->p_obj = atoi(param_start); 323 break; 324 325 default: 326 errx(1, "set_option: internal error: p_type %d", p->p_type); 327 } 328 } 329 330 void 331 add_typedefs_from_file(const char *str) 332 { 333 FILE *file; 334 char line[BUFSIZ]; 335 336 if ((file = fopen(str, "r")) == NULL) { 337 fprintf(stderr, "indent: cannot open file %s\n", str); 338 exit(1); 339 } 340 while ((fgets(line, BUFSIZ, file)) != NULL) { 341 /* Remove trailing whitespace */ 342 line[strcspn(line, " \t\n\r")] = '\0'; 343 add_typename(line); 344 } 345 fclose(file); 346 } 347