1 /* $OpenBSD: error.c,v 1.17 2020/05/24 18:27:07 espie Exp $ */ 2 /* $NetBSD: error.c,v 1.4 1996/03/19 03:21:32 jtc Exp $ */ 3 4 /* 5 * Copyright (c) 1989 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Robert Paul Corbett. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 /* routines for printing error messages */ 37 38 #include "defs.h" 39 #include <errno.h> 40 41 42 void 43 fatal(char *msg) 44 { 45 fprintf(stderr, "%s: %s\n", input_file_name, msg); 46 exit(2); 47 } 48 49 50 void 51 no_space(void) 52 { 53 fprintf(stderr, "%s: yacc is out of space\n", input_file_name); 54 exit(2); 55 } 56 57 58 void 59 open_error(char *filename) 60 { 61 fprintf(stderr, "%s: cannot open source file %s: %s\n", 62 input_file_name, filename, strerror(errno)); 63 exit(2); 64 } 65 66 void 67 tempfile_error(void) 68 { 69 fprintf(stderr, "%s: cannot create temporary file: %s\n", 70 input_file_name, strerror(errno)); 71 exit(2); 72 } 73 74 void 75 open_write_error(char *filename) 76 { 77 fprintf(stderr, "%s: cannot open target file %s for writing: %s\n", 78 input_file_name, filename, strerror(errno)); 79 exit(2); 80 } 81 82 void 83 unexpected_EOF(void) 84 { 85 fprintf(stderr, "%s:%d: unexpected end-of-file\n", 86 input_file_name, lineno); 87 exit(1); 88 } 89 90 91 void 92 print_pos(char *st_line, char *st_cptr) 93 { 94 char *s; 95 96 if (st_line == 0) 97 return; 98 for (s = st_line; *s != '\n'; ++s) { 99 if (isprint((unsigned char)*s) || *s == '\t') 100 putc(*s, stderr); 101 else 102 putc('?', stderr); 103 } 104 putc('\n', stderr); 105 for (s = st_line; s < st_cptr; ++s) { 106 if (*s == '\t') 107 putc('\t', stderr); 108 else 109 putc(' ', stderr); 110 } 111 putc('^', stderr); 112 putc('\n', stderr); 113 } 114 115 void 116 syntax_error(int st_lineno, char *st_line, char *st_cptr) 117 { 118 fprintf(stderr, "%s:%d: syntax error\n", 119 input_file_name, st_lineno); 120 print_pos(st_line, st_cptr); 121 exit(1); 122 } 123 124 void 125 unterminated_comment(int c_lineno, char *c_line, char *c_cptr) 126 { 127 fprintf(stderr, "%s:%d: unmatched /*\n", 128 input_file_name, c_lineno); 129 print_pos(c_line, c_cptr); 130 exit(1); 131 } 132 133 void 134 unterminated_string(int s_lineno, char *s_line, char *s_cptr) 135 { 136 fprintf(stderr, "%s:%d:, unterminated string\n", 137 input_file_name, s_lineno); 138 print_pos(s_line, s_cptr); 139 exit(1); 140 } 141 142 void 143 unterminated_text(int t_lineno, char *t_line, char *t_cptr) 144 { 145 fprintf(stderr, "%s:%d: unmatched %%{\n", 146 input_file_name, t_lineno); 147 print_pos(t_line, t_cptr); 148 exit(1); 149 } 150 151 void 152 unterminated_union(int u_lineno, char *u_line, char *u_cptr) 153 { 154 fprintf(stderr, "%s:%d: unterminated %%union declaration\n", 155 input_file_name, u_lineno); 156 print_pos(u_line, u_cptr); 157 exit(1); 158 } 159 160 void 161 over_unionized(char *u_cptr) 162 { 163 fprintf(stderr, "%s:%d: too many %%union declarations\n", 164 input_file_name, lineno); 165 print_pos(line, u_cptr); 166 exit(1); 167 } 168 169 void 170 illegal_tag(int t_lineno, char *t_line, char *t_cptr) 171 { 172 fprintf(stderr, "%s:%d: illegal tag\n", 173 input_file_name, t_lineno); 174 print_pos(t_line, t_cptr); 175 exit(1); 176 } 177 178 179 void 180 illegal_character(char *c_cptr) 181 { 182 fprintf(stderr, "%s:%d: illegal character\n", 183 input_file_name, lineno); 184 print_pos(line, c_cptr); 185 exit(1); 186 } 187 188 189 void 190 used_reserved(char *s) 191 { 192 fprintf(stderr, "%s:%d: illegal use of reserved symbol %s\n", 193 input_file_name, lineno, s); 194 exit(1); 195 } 196 197 void 198 tokenized_start(char *s) 199 { 200 fprintf(stderr, "%s:%d: the start symbol %s cannot be declared to be a token\n", 201 input_file_name, lineno, s); 202 exit(1); 203 } 204 205 void 206 retyped_warning(char *s) 207 { 208 fprintf(stderr, "%s:%d: the type of %s has been redeclared\n", 209 input_file_name, lineno, s); 210 } 211 212 void 213 reprec_warning(char *s) 214 { 215 fprintf(stderr, "%s:%d: the precedence of %s has been redeclared\n", 216 input_file_name, lineno, s); 217 } 218 219 void 220 revalued_warning(char *s) 221 { 222 fprintf(stderr, "%s:%d: the value of %s has been redeclared\n", 223 input_file_name, lineno, s); 224 } 225 226 void 227 terminal_start(char *s) 228 { 229 fprintf(stderr, "%s:%d: the start symbol %s is a token\n", 230 input_file_name, lineno, s); 231 exit(1); 232 } 233 234 void 235 restarted_warning(void) 236 { 237 fprintf(stderr, "%s:%d: the start symbol has been redeclared\n", 238 input_file_name, lineno); 239 } 240 241 void 242 no_grammar(void) 243 { 244 fprintf(stderr, "%s:%d: no grammar has been specified\n", 245 input_file_name, lineno); 246 exit(1); 247 } 248 249 void 250 terminal_lhs(int s_lineno) 251 { 252 fprintf(stderr, "%s:%d: a token appears on the lhs of a production\n", 253 input_file_name, s_lineno); 254 exit(1); 255 } 256 257 void 258 prec_redeclared(void) 259 { 260 fprintf(stderr, "%s:%d: conflicting %%prec specifiers\n", 261 input_file_name, lineno); 262 } 263 264 void 265 unterminated_action(int a_lineno, char *a_line, char *a_cptr) 266 { 267 fprintf(stderr, "%s:%d: unterminated action\n", 268 input_file_name, a_lineno); 269 print_pos(a_line, a_cptr); 270 exit(1); 271 } 272 273 void 274 dollar_warning(int a_lineno, int i) 275 { 276 fprintf(stderr, "%s:%d: $%d references beyond the end of the current rule\n", 277 input_file_name, a_lineno, i); 278 } 279 280 void 281 dollar_error(int a_lineno, char *a_line, char *a_cptr) 282 { 283 fprintf(stderr, "%s:%d: illegal $-name\n", 284 input_file_name, a_lineno); 285 print_pos(a_line, a_cptr); 286 exit(1); 287 } 288 289 290 void 291 untyped_lhs(void) 292 { 293 fprintf(stderr, "%s:%d: $$ is untyped\n", 294 input_file_name, lineno); 295 exit(1); 296 } 297 298 void 299 untyped_rhs(int i, char *s) 300 { 301 fprintf(stderr, "%s:%d: $%d (%s) is untyped\n", 302 input_file_name, lineno, i, s); 303 exit(1); 304 } 305 306 void 307 unknown_rhs(int i) 308 { 309 fprintf(stderr, "%s:%d: $%d is untyped\n", 310 input_file_name, lineno, i); 311 exit(1); 312 } 313 314 void 315 default_action_warning(void) 316 { 317 fprintf(stderr, "%s:%d: the default action assigns an undefined value to $$\n", 318 input_file_name, lineno); 319 } 320 321 void 322 undefined_goal(char *s) 323 { 324 fprintf(stderr, "%s: the start symbol %s is undefined\n", input_file_name, s); 325 exit(1); 326 } 327 328 void 329 undefined_symbol_warning(char *s) 330 { 331 fprintf(stderr, "%s: the symbol %s is undefined\n", input_file_name, s); 332 } 333