1 /* $OpenBSD: error.c,v 1.11 2009/10/27 23:59:50 deraadt 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 40 41 void 42 fatal(char *msg) 43 { 44 fprintf(stderr, "%s: %s\n", input_file_name, msg); 45 done(2); 46 } 47 48 49 void 50 no_space(void) 51 { 52 fprintf(stderr, "%s: yacc is out of space\n", input_file_name); 53 done(2); 54 } 55 56 57 void 58 open_error(char *filename) 59 { 60 fprintf(stderr, "%s: cannot open source file\n", input_file_name); 61 done(2); 62 } 63 64 void 65 open_write_error(char *filename) 66 { 67 fprintf(stderr, "%s: cannot open target file %s for writing\n", 68 input_file_name, filename); 69 done(2); 70 } 71 72 void 73 unexpected_EOF(void) 74 { 75 fprintf(stderr, "%s:%d: unexpected end-of-file\n", 76 input_file_name, lineno); 77 done(1); 78 } 79 80 81 void 82 print_pos(char *st_line, char *st_cptr) 83 { 84 char *s; 85 86 if (st_line == 0) return; 87 for (s = st_line; *s != '\n'; ++s) 88 { 89 if (isprint(*s) || *s == '\t') 90 putc(*s, stderr); 91 else 92 putc('?', stderr); 93 } 94 putc('\n', stderr); 95 for (s = st_line; s < st_cptr; ++s) 96 { 97 if (*s == '\t') 98 putc('\t', stderr); 99 else 100 putc(' ', stderr); 101 } 102 putc('^', stderr); 103 putc('\n', stderr); 104 } 105 106 void 107 syntax_error(int st_lineno, char *st_line, char *st_cptr) 108 { 109 fprintf(stderr, "%s:%d: syntax error\n", 110 input_file_name, st_lineno); 111 print_pos(st_line, st_cptr); 112 done(1); 113 } 114 115 void 116 unterminated_comment(int c_lineno, char *c_line, char *c_cptr) 117 { 118 fprintf(stderr, "%s:%d: unmatched /*\n", 119 input_file_name, c_lineno); 120 print_pos(c_line, c_cptr); 121 done(1); 122 } 123 124 void 125 unterminated_string(int s_lineno, char *s_line, char *s_cptr) 126 { 127 fprintf(stderr, "%s:%d:, unterminated string\n", 128 input_file_name, s_lineno); 129 print_pos(s_line, s_cptr); 130 done(1); 131 } 132 133 void 134 unterminated_text(int t_lineno, char *t_line, char *t_cptr) 135 { 136 fprintf(stderr, "%s:%d: unmatched %%{\n", 137 input_file_name, t_lineno); 138 print_pos(t_line, t_cptr); 139 done(1); 140 } 141 142 void 143 unterminated_union(int u_lineno, char *u_line, char *u_cptr) 144 { 145 fprintf(stderr, "%s:%d: unterminated %%union declaration\n", 146 input_file_name, u_lineno); 147 print_pos(u_line, u_cptr); 148 done(1); 149 } 150 151 void 152 over_unionized(char *u_cptr) 153 { 154 fprintf(stderr, "%s:%d: too many %%union declarations\n", 155 input_file_name, lineno); 156 print_pos(line, u_cptr); 157 done(1); 158 } 159 160 void 161 illegal_tag(int t_lineno, char *t_line, char *t_cptr) 162 { 163 fprintf(stderr, "%s:%d: illegal tag\n", 164 input_file_name, t_lineno); 165 print_pos(t_line, t_cptr); 166 done(1); 167 } 168 169 170 void 171 illegal_character(char *c_cptr) 172 { 173 fprintf(stderr, "%s:%d: illegal character\n", 174 input_file_name, lineno); 175 print_pos(line, c_cptr); 176 done(1); 177 } 178 179 180 void 181 used_reserved(char *s) 182 { 183 fprintf(stderr, "%s:%d: illegal use of reserved symbol %s\n", 184 input_file_name, lineno, s); 185 done(1); 186 } 187 188 void 189 tokenized_start(char *s) 190 { 191 fprintf(stderr, "%s:%d: the start symbol %s cannot be declared to be a token\n", 192 input_file_name, lineno, s); 193 done(1); 194 } 195 196 void 197 retyped_warning(char *s) 198 { 199 fprintf(stderr, "%s:%d: the type of %s has been redeclared\n", 200 input_file_name, lineno, s); 201 } 202 203 void 204 reprec_warning(char *s) 205 { 206 fprintf(stderr, "%s:%d: the precedence of %s has been redeclared\n", 207 input_file_name, lineno, s); 208 } 209 210 void 211 revalued_warning(char *s) 212 { 213 fprintf(stderr, "%s:%d: the value of %s has been redeclared\n", 214 input_file_name, lineno, s); 215 } 216 217 void 218 terminal_start(char *s) 219 { 220 fprintf(stderr, "%s:%d: the start symbol %s is a token\n", 221 input_file_name, lineno, s); 222 done(1); 223 } 224 225 void 226 restarted_warning(void) 227 { 228 fprintf(stderr, "%s:%d: the start symbol has been redeclared\n", 229 input_file_name, lineno); 230 } 231 232 void 233 no_grammar(void) 234 { 235 fprintf(stderr, "%s:%d: no grammar has been specified\n", 236 input_file_name, lineno); 237 done(1); 238 } 239 240 void 241 terminal_lhs(int s_lineno) 242 { 243 fprintf(stderr, "%s:%d: a token appears on the lhs of a production\n", 244 input_file_name, s_lineno); 245 done(1); 246 } 247 248 void 249 prec_redeclared(void) 250 { 251 fprintf(stderr, "%s:%d: conflicting %%prec specifiers\n", 252 input_file_name, lineno); 253 } 254 255 void 256 unterminated_action(int a_lineno, char *a_line, char *a_cptr) 257 { 258 fprintf(stderr, "%s:%d: unterminated action\n", 259 input_file_name, a_lineno); 260 print_pos(a_line, a_cptr); 261 done(1); 262 } 263 264 void 265 dollar_warning(int a_lineno, int i) 266 { 267 fprintf(stderr, "%s:%d: $%d references beyond the end of the current rule\n", 268 input_file_name, a_lineno, i); 269 } 270 271 void 272 dollar_error(int a_lineno, char *a_line, char *a_cptr) 273 { 274 fprintf(stderr, "%s:%d: illegal $-name\n", 275 input_file_name, a_lineno); 276 print_pos(a_line, a_cptr); 277 done(1); 278 } 279 280 281 void 282 untyped_lhs(void) 283 { 284 fprintf(stderr, "%s:%d: $$ is untyped\n", 285 input_file_name, lineno); 286 done(1); 287 } 288 289 void 290 untyped_rhs(int i, char *s) 291 { 292 fprintf(stderr, "%s:%d: $%d (%s) is untyped\n", 293 input_file_name, lineno, i, s); 294 done(1); 295 } 296 297 void 298 unknown_rhs(int i) 299 { 300 fprintf(stderr, "%s:%d: $%d is untyped\n", 301 input_file_name, lineno, i); 302 done(1); 303 } 304 305 void 306 default_action_warning(void) 307 { 308 fprintf(stderr, "%s:%d: the default action assigns an undefined value to $$\n", 309 input_file_name, lineno); 310 } 311 312 void 313 undefined_goal(char *s) 314 { 315 fprintf(stderr, "%s: the start symbol %s is undefined\n", input_file_name, s); 316 done(1); 317 } 318 319 void 320 undefined_symbol_warning(char *s) 321 { 322 fprintf(stderr, "%s: the symbol %s is undefined\n", input_file_name, s); 323 } 324