1 /* 2 * Copyright (c) 1985 Sun Microsystems, Inc. 3 * Copyright (c) 1980, 1993 4 * The Regents of the University of California. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)args.c 8.1 (Berkeley) 6/6/93 32 * $FreeBSD: src/usr.bin/indent/args.c,v 1.16 2010/03/31 17:05:30 avg Exp $ 33 */ 34 35 /* 36 * Argument scanning and profile reading code. Default parameters are set 37 * here as well. 38 */ 39 40 #include <ctype.h> 41 #include <err.h> 42 #include <limits.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include "indent_globs.h" 47 #include "indent.h" 48 49 /* profile types */ 50 #define PRO_SPECIAL 1 /* special case */ 51 #define PRO_BOOL 2 /* boolean */ 52 #define PRO_INT 3 /* integer */ 53 #define PRO_FONT 4 /* troff font */ 54 55 /* profile specials for booleans */ 56 #define ON 1 /* turn it on */ 57 #define OFF 0 /* turn it off */ 58 59 /* profile specials for specials */ 60 #define IGN 1 /* ignore it */ 61 #define CLI 2 /* case label indent (float) */ 62 #define STDIN 3 /* use stdin */ 63 #define KEY 4 /* type (keyword) */ 64 65 static void scan_profile(FILE *); 66 67 const char *option_source = "?"; 68 69 /* 70 * N.B.: because of the way the table here is scanned, options whose names are 71 * substrings of other options must occur later; that is, with -lp vs -l, -lp 72 * must be first. Also, while (most) booleans occur more than once, the last 73 * default value is the one actually assigned. 74 */ 75 struct pro { 76 const char *p_name; /* name, e.g. -bl, -cli */ 77 int p_type; /* type (int, bool, special) */ 78 int p_default; /* the default value (if int) */ 79 int p_special; /* depends on type */ 80 int *p_obj; /* the associated variable */ 81 } pro[] = { 82 83 {"T", PRO_SPECIAL, 0, KEY, 0}, 84 {"bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation}, 85 {"badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop}, 86 {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations}, 87 {"bap", PRO_BOOL, false, ON, &blanklines_after_procs}, 88 {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments}, 89 {"bc", PRO_BOOL, true, OFF, &ps.leave_comma}, 90 {"bl", PRO_BOOL, true, OFF, &btype_2}, 91 {"br", PRO_BOOL, true, ON, &btype_2}, 92 {"bs", PRO_BOOL, false, ON, &Bill_Shannon}, 93 {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline}, 94 {"cd", PRO_INT, 0, 0, &ps.decl_com_ind}, 95 {"ce", PRO_BOOL, true, ON, &cuddle_else}, 96 {"ci", PRO_INT, 0, 0, &continuation_indent}, 97 {"cli", PRO_SPECIAL, 0, CLI, 0}, 98 {"c", PRO_INT, 33, 0, &ps.com_ind}, 99 {"di", PRO_INT, 16, 0, &ps.decl_indent}, 100 {"dj", PRO_BOOL, false, ON, &ps.ljust_decl}, 101 {"d", PRO_INT, 0, 0, &ps.unindent_displace}, 102 {"eei", PRO_BOOL, false, ON, &extra_expression_indent}, 103 {"ei", PRO_BOOL, true, ON, &ps.else_if}, 104 {"fbc", PRO_FONT, 0, 0, (int *) &blkcomf}, 105 {"fbs", PRO_BOOL, true, ON, &function_brace_split}, 106 {"fbx", PRO_FONT, 0, 0, (int *) &boxcomf}, 107 {"fb", PRO_FONT, 0, 0, (int *) &bodyf}, 108 {"fc1", PRO_BOOL, true, ON, &format_col1_comments}, 109 {"fcb", PRO_BOOL, true, ON, &format_block_comments}, 110 {"fc", PRO_FONT, 0, 0, (int *) &scomf}, 111 {"fk", PRO_FONT, 0, 0, (int *) &keywordf}, 112 {"fs", PRO_FONT, 0, 0, (int *) &stringf}, 113 {"ip", PRO_BOOL, true, ON, &ps.indent_parameters}, 114 {"i", PRO_INT, 8, 0, &ps.ind_size}, 115 {"lc", PRO_INT, 0, 0, &block_comment_max_col}, 116 {"ldi", PRO_INT, -1, 0, &ps.local_decl_indent}, 117 {"lp", PRO_BOOL, true, ON, &lineup_to_parens}, 118 {"l", PRO_INT, 78, 0, &max_col}, 119 {"nbacc", PRO_BOOL, false, OFF, &blanklines_around_conditional_compilation}, 120 {"nbadp", PRO_BOOL, false, OFF, &blanklines_after_declarations_at_proctop}, 121 {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations}, 122 {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs}, 123 {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments}, 124 {"nbc", PRO_BOOL, true, ON, &ps.leave_comma}, 125 {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon}, 126 {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline}, 127 {"nce", PRO_BOOL, true, OFF, &cuddle_else}, 128 {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl}, 129 {"neei", PRO_BOOL, false, OFF, &extra_expression_indent}, 130 {"nei", PRO_BOOL, true, OFF, &ps.else_if}, 131 {"nfbs", PRO_BOOL, true, OFF, &function_brace_split}, 132 {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments}, 133 {"nfcb", PRO_BOOL, true, OFF, &format_block_comments}, 134 {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters}, 135 {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens}, 136 {"npcs", PRO_BOOL, false, OFF, &proc_calls_space}, 137 {"npro", PRO_SPECIAL, 0, IGN, 0}, 138 {"npsl", PRO_BOOL, true, OFF, &procnames_start_line}, 139 {"nps", PRO_BOOL, false, OFF, &pointer_as_binop}, 140 {"nsc", PRO_BOOL, true, OFF, &star_comment_cont}, 141 {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines}, 142 {"nut", PRO_BOOL, true, OFF, &use_tabs}, 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 {"ta", PRO_BOOL, false, ON, &auto_typedefs}, 151 {"troff", PRO_BOOL, false, ON, &troff}, 152 {"ut", PRO_BOOL, true, ON, &use_tabs}, 153 {"v", PRO_BOOL, false, ON, &verbose}, 154 /* whew! */ 155 {0, 0, 0, 0, 0} 156 }; 157 158 /* 159 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments 160 * given in these files. 161 */ 162 void 163 set_profile(void) 164 { 165 FILE *f; 166 char fname[PATH_MAX]; 167 static char prof[] = ".indent.pro"; 168 169 snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof); 170 if ((f = fopen(option_source = fname, "r")) != NULL) { 171 scan_profile(f); 172 (void) fclose(f); 173 } 174 if ((f = fopen(option_source = prof, "r")) != NULL) { 175 scan_profile(f); 176 (void) fclose(f); 177 } 178 option_source = "Command line"; 179 } 180 181 static void 182 scan_profile(FILE *f) 183 { 184 int comment, i; 185 char *p; 186 char buf[BUFSIZ]; 187 188 while (1) { 189 p = buf; 190 comment = 0; 191 while ((i = getc(f)) != EOF) { 192 if (i == '*' && !comment && p > buf && p[-1] == '/') { 193 comment = p - buf; 194 *p++ = i; 195 } else if (i == '/' && comment && p > buf && p[-1] == '*') { 196 p = buf + comment - 1; 197 comment = 0; 198 } else if (isspace(i)) { 199 if (p > buf && !comment) 200 break; 201 } else { 202 *p++ = i; 203 } 204 } 205 if (p != buf) { 206 *p++ = 0; 207 if (verbose) 208 printf("profile: %s\n", buf); 209 set_option(buf); 210 } 211 else if (i == EOF) 212 return; 213 } 214 } 215 216 const char *param_start; 217 218 static int 219 eqin(const char *s1, const char *s2) 220 { 221 while (*s1) { 222 if (*s1++ != *s2++) 223 return (false); 224 } 225 param_start = s2; 226 return (true); 227 } 228 229 /* 230 * Set the defaults. 231 */ 232 void 233 set_defaults(void) 234 { 235 struct pro *p; 236 237 /* 238 * Because ps.case_indent is a float, we can't initialize it from the 239 * table: 240 */ 241 ps.case_indent = 0.0; /* -cli0.0 */ 242 for (p = pro; p->p_name; p++) 243 if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT) 244 *p->p_obj = p->p_default; 245 } 246 247 void 248 set_option(char *arg) 249 { 250 struct pro *p; 251 252 arg++; /* ignore leading "-" */ 253 for (p = pro; p->p_name; p++) 254 if (*p->p_name == *arg && eqin(p->p_name, arg)) 255 goto found; 256 errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1); 257 found: 258 switch (p->p_type) { 259 260 case PRO_SPECIAL: 261 switch (p->p_special) { 262 263 case IGN: 264 break; 265 266 case CLI: 267 if (*param_start == 0) 268 goto need_param; 269 ps.case_indent = atof(param_start); 270 break; 271 272 case STDIN: 273 if (input == 0) 274 input = stdin; 275 if (output == 0) 276 output = stdout; 277 break; 278 279 case KEY: 280 if (*param_start == 0) 281 goto need_param; 282 { 283 char *str = strdup(param_start); 284 if (str == NULL) 285 err(1, NULL); 286 addkey(str, 4); 287 } 288 break; 289 290 default: 291 errx(1, "set_option: internal error: p_special %d", p->p_special); 292 } 293 break; 294 295 case PRO_BOOL: 296 if (p->p_special == OFF) 297 *p->p_obj = false; 298 else 299 *p->p_obj = true; 300 break; 301 302 case PRO_INT: 303 if (!isdigit(*param_start)) { 304 need_param: 305 errx(1, "%s: ``%s'' requires a parameter", option_source, arg - 1); 306 } 307 *p->p_obj = atoi(param_start); 308 break; 309 310 case PRO_FONT: 311 parsefont((struct fstate *) p->p_obj, param_start); 312 break; 313 314 default: 315 errx(1, "set_option: internal error: p_type %d", p->p_type); 316 } 317 } 318