1 /* $OpenBSD: args.c,v 1.4 1997/07/25 22:00:44 mickey Exp $ */ 2 3 /* 4 * Copyright (c) 1985 Sun Microsystems, Inc. 5 * Copyright (c) 1980 The Regents of the University of California. 6 * Copyright (c) 1976 Board of Trustees of the University of Illinois. 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 #ifndef lint 39 /*static char sccsid[] = "from: @(#)args.c 5.10 (Berkeley) 2/26/91";*/ 40 static char rcsid[] = "$OpenBSD: args.c,v 1.4 1997/07/25 22:00:44 mickey Exp $"; 41 #endif /* not lint */ 42 43 /* 44 * Argument scanning and profile reading code. Default parameters are set 45 * here as well. 46 */ 47 48 #include <stdio.h> 49 #include <ctype.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <errno.h> 53 #include "indent_globs.h" 54 #include <err.h> 55 56 /* profile types */ 57 #define PRO_SPECIAL 1 /* special case */ 58 #define PRO_BOOL 2 /* boolean */ 59 #define PRO_INT 3 /* integer */ 60 #define PRO_FONT 4 /* troff font */ 61 62 /* profile specials for booleans */ 63 #define ON 1 /* turn it on */ 64 #define OFF 0 /* turn it off */ 65 66 /* profile specials for specials */ 67 #define IGN 1 /* ignore it */ 68 #define CLI 2 /* case label indent (float) */ 69 #define STDIN 3 /* use stdin */ 70 #define KEY 4 /* type (keyword) */ 71 72 char *option_source = "?"; 73 74 /* 75 * N.B.: because of the way the table here is scanned, options whose names are 76 * substrings of other options must occur later; that is, with -lp vs -l, -lp 77 * must be first. Also, while (most) booleans occur more than once, the last 78 * default value is the one actually assigned. 79 */ 80 struct pro { 81 char *p_name; /* name, eg -bl, -cli */ 82 int p_type; /* type (int, bool, special) */ 83 int p_default; /* the default value (if int) */ 84 int p_special; /* depends on type */ 85 int *p_obj; /* the associated variable */ 86 } pro[] = { 87 88 { "T", PRO_SPECIAL, 0, KEY, 0 }, 89 {"bacc", PRO_BOOL, false, ON, 90 &blanklines_around_conditional_compilation }, 91 {"badp", PRO_BOOL, false, ON, 92 &blanklines_after_declarations_at_proctop }, 93 {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations }, 94 {"bap", PRO_BOOL, false, ON, &blanklines_after_procs }, 95 {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments }, 96 {"bc", PRO_BOOL, true, OFF, &ps.leave_comma }, 97 {"bl", PRO_BOOL, true, OFF, &btype_2 }, 98 {"br", PRO_BOOL, true, ON, &btype_2 }, 99 {"bs", PRO_BOOL, false, ON, &Bill_Shannon }, 100 {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline }, 101 {"cd", PRO_INT, 0, 0, &ps.decl_com_ind }, 102 {"ce", PRO_BOOL, true, ON, &cuddle_else }, 103 {"ci", PRO_INT, 0, 0, &continuation_indent }, 104 {"cli", PRO_SPECIAL, 0, CLI, 0 }, 105 {"c", PRO_INT, 33, 0, &ps.com_ind }, 106 {"di", PRO_INT, 16, 0, &ps.decl_indent }, 107 {"dj", PRO_BOOL, false, ON, &ps.ljust_decl }, 108 {"d", PRO_INT, 0, 0, &ps.unindent_displace }, 109 {"eei", PRO_BOOL, false, ON, &extra_expression_indent }, 110 {"ei", PRO_BOOL, true, ON, &ps.else_if }, 111 {"fbc", PRO_FONT, 0, 0, (int *) &blkcomf }, 112 {"fbx", PRO_FONT, 0, 0, (int *) &boxcomf }, 113 {"fb", PRO_FONT, 0, 0, (int *) &bodyf }, 114 {"fc1", PRO_BOOL, true, ON, &format_col1_comments }, 115 {"fc", PRO_FONT, 0, 0, (int *) &scomf }, 116 {"fk", PRO_FONT, 0, 0, (int *) &keywordf }, 117 {"fs", PRO_FONT, 0, 0, (int *) &stringf }, 118 {"ip", PRO_BOOL, true, ON, &ps.indent_parameters }, 119 {"i", PRO_INT, 8, 0, &ps.ind_size }, 120 {"lc", PRO_INT, 0, 0, &block_comment_max_col }, 121 {"lp", PRO_BOOL, true, ON, &lineup_to_parens }, 122 {"l", PRO_INT, 78, 0, &max_col }, 123 {"nbacc", PRO_BOOL, false, OFF, 124 &blanklines_around_conditional_compilation }, 125 {"nbadp", PRO_BOOL, false, OFF, 126 &blanklines_after_declarations_at_proctop }, 127 {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations }, 128 {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs }, 129 {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments }, 130 {"nbc", PRO_BOOL, true, ON, &ps.leave_comma }, 131 {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon }, 132 {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline }, 133 {"nce", PRO_BOOL, true, OFF, &cuddle_else }, 134 {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl }, 135 {"neei", PRO_BOOL, false, OFF, &extra_expression_indent }, 136 {"nei", PRO_BOOL, true, OFF, &ps.else_if }, 137 {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments }, 138 {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters }, 139 {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens }, 140 {"npcs", PRO_BOOL, false, OFF, &proc_calls_space }, 141 {"npro", PRO_SPECIAL, 0, IGN, 0 }, 142 {"npsl", PRO_BOOL, true, OFF, &procnames_start_line }, 143 {"nps", PRO_BOOL, false, OFF, &pointer_as_binop }, 144 {"nsc", PRO_BOOL, true, OFF, &star_comment_cont }, 145 {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines }, 146 {"nv", PRO_BOOL, false, OFF, &verbose }, 147 {"pcs", PRO_BOOL, false, ON, &proc_calls_space }, 148 {"psl", PRO_BOOL, true, ON, &procnames_start_line }, 149 {"ps", PRO_BOOL, false, ON, &pointer_as_binop }, 150 {"sc", PRO_BOOL, true, ON, &star_comment_cont }, 151 {"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines }, 152 {"st", PRO_SPECIAL, 0, STDIN, 0 }, 153 {"troff", PRO_BOOL, false, ON, &troff }, 154 {"v", PRO_BOOL, false, ON, &verbose }, 155 /* whew! */ 156 { 0, 0, 0, 0, 0 } 157 }; 158 159 void scan_profile(); 160 void set_option(); 161 162 /* 163 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments 164 * given in these files. 165 */ 166 void 167 set_profile() 168 { 169 register FILE *f; 170 char fname[BUFSIZ]; 171 static char prof[] = ".indent.pro"; 172 173 if (strlen(getenv("HOME")) + sizeof(prof) > sizeof(fname)) { 174 warnx("%s/%s: %s", getenv("HOME"), prof, strerror(ENAMETOOLONG)); 175 return; 176 } 177 sprintf(fname, "%s/%s", getenv("HOME"), prof); 178 if ((f = fopen(option_source = fname, "r")) != NULL) { 179 scan_profile(f); 180 (void) fclose(f); 181 } 182 if ((f = fopen(option_source = prof, "r")) != NULL) { 183 scan_profile(f); 184 (void) fclose(f); 185 } 186 option_source = "Command line"; 187 } 188 189 void 190 scan_profile(f) 191 register FILE *f; 192 { 193 register int i; 194 register char *p; 195 char buf[BUFSIZ]; 196 197 while (1) { 198 for (p = buf; (i = getc(f)) != EOF && (*p = i) > ' '; ++p); 199 if (p != buf) { 200 *p++ = 0; 201 if (verbose) 202 printf("profile: %s\n", buf); 203 set_option(buf); 204 } 205 else if (i == EOF) 206 return; 207 } 208 } 209 210 char *param_start; 211 212 int 213 eqin(s1, s2) 214 register char *s1; 215 register char *s2; 216 { 217 while (*s1) { 218 if (*s1++ != *s2++) 219 return (false); 220 } 221 param_start = s2; 222 return (true); 223 } 224 225 /* 226 * Set the defaults. 227 */ 228 void 229 set_defaults() 230 { 231 register struct pro *p; 232 233 /* 234 * Because ps.case_indent is a float, we can't initialize it from the 235 * table: 236 */ 237 ps.case_indent = 0.0; /* -cli0.0 */ 238 for (p = pro; p->p_name; p++) 239 if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT) 240 *p->p_obj = p->p_default; 241 } 242 243 void 244 set_option(arg) 245 register char *arg; 246 { 247 register struct pro *p; 248 extern double atof(); 249 250 arg++; /* ignore leading "-" */ 251 for (p = pro; p->p_name; p++) 252 if (*p->p_name == *arg && eqin(p->p_name, arg)) 253 goto found; 254 fprintf(stderr, "indent: %s: unknown parameter \"%s\"\n", option_source, arg - 1); 255 exit(1); 256 found: 257 switch (p->p_type) { 258 259 case PRO_SPECIAL: 260 switch (p->p_special) { 261 262 case IGN: 263 break; 264 265 case CLI: 266 if (*param_start == 0) 267 goto need_param; 268 ps.case_indent = atof(param_start); 269 break; 270 271 case STDIN: 272 if (input == 0) 273 input = stdin; 274 if (output == 0) 275 output = stdout; 276 break; 277 278 case KEY: 279 if (*param_start == 0) 280 goto need_param; 281 { 282 register char *str = (char *) malloc(strlen(param_start) + 1); 283 strcpy(str, param_start); 284 addkey(str, 4); 285 } 286 break; 287 288 default: 289 fprintf(stderr, "\ 290 indent: set_option: internal error: p_special %d\n", p->p_special); 291 exit(1); 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 fprintf(stderr, "indent: %s: ``%s'' requires a parameter\n", 306 option_source, arg - 1); 307 exit(1); 308 } 309 *p->p_obj = atoi(param_start); 310 break; 311 312 case PRO_FONT: 313 parsefont((struct fstate *) p->p_obj, param_start); 314 break; 315 316 default: 317 fprintf(stderr, "indent: set_option: internal error: p_type %d\n", 318 p->p_type); 319 exit(1); 320 } 321 } 322