1 #if HAVE_NBTOOL_CONFIG_H 2 #include "nbtool_config.h" 3 #endif 4 #line 2 "tokenizer.c" 5 6 #line 4 "tokenizer.c" 7 8 #define YY_INT_ALIGNED short int 9 10 /* A lexical scanner generated by flex */ 11 12 #define FLEX_SCANNER 13 #define YY_FLEX_MAJOR_VERSION 2 14 #define YY_FLEX_MINOR_VERSION 5 15 #define YY_FLEX_SUBMINOR_VERSION 35 16 #if YY_FLEX_SUBMINOR_VERSION > 0 17 #define FLEX_BETA 18 #endif 19 20 /* First, we deal with platform-specific or compiler-specific issues. */ 21 22 /* begin standard C headers. */ 23 #include <stdio.h> 24 #include <string.h> 25 #include <errno.h> 26 #include <stdlib.h> 27 28 /* end standard C headers. */ 29 30 /* NetBSD: flexint.h,v 1.1.1.1 2009/10/26 00:26:19 christos Exp */ 31 32 /* flex integer type definitions */ 33 34 #ifndef FLEXINT_H 35 #define FLEXINT_H 36 37 /* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ 38 39 #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L 40 41 /* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, 42 * if you want the limit (max/min) macros for int types. 43 */ 44 #ifndef __STDC_LIMIT_MACROS 45 #define __STDC_LIMIT_MACROS 1 46 #endif 47 48 #include <inttypes.h> 49 typedef int8_t flex_int8_t; 50 typedef uint8_t flex_uint8_t; 51 typedef int16_t flex_int16_t; 52 typedef uint16_t flex_uint16_t; 53 typedef int32_t flex_int32_t; 54 typedef uint32_t flex_uint32_t; 55 #else 56 typedef signed char flex_int8_t; 57 typedef short int flex_int16_t; 58 typedef int flex_int32_t; 59 typedef unsigned char flex_uint8_t; 60 typedef unsigned short int flex_uint16_t; 61 typedef unsigned int flex_uint32_t; 62 #endif /* ! C99 */ 63 64 /* Limits of integral types. */ 65 #ifndef INT8_MIN 66 #define INT8_MIN (-128) 67 #endif 68 #ifndef INT16_MIN 69 #define INT16_MIN (-32767-1) 70 #endif 71 #ifndef INT32_MIN 72 #define INT32_MIN (-2147483647-1) 73 #endif 74 #ifndef INT8_MAX 75 #define INT8_MAX (127) 76 #endif 77 #ifndef INT16_MAX 78 #define INT16_MAX (32767) 79 #endif 80 #ifndef INT32_MAX 81 #define INT32_MAX (2147483647) 82 #endif 83 #ifndef UINT8_MAX 84 #define UINT8_MAX (255U) 85 #endif 86 #ifndef UINT16_MAX 87 #define UINT16_MAX (65535U) 88 #endif 89 #ifndef UINT32_MAX 90 #define UINT32_MAX (4294967295U) 91 #endif 92 93 #endif /* ! FLEXINT_H */ 94 95 #ifdef __cplusplus 96 97 /* The "const" storage-class-modifier is valid. */ 98 #define YY_USE_CONST 99 100 #else /* ! __cplusplus */ 101 102 /* C99 requires __STDC__ to be defined as 1. */ 103 #if defined (__STDC__) 104 105 #define YY_USE_CONST 106 107 #endif /* defined (__STDC__) */ 108 #endif /* ! __cplusplus */ 109 110 #ifdef YY_USE_CONST 111 #define yyconst const 112 #else 113 #define yyconst 114 #endif 115 116 /* Returned upon end-of-file. */ 117 #define YY_NULL 0 118 119 /* Promotes a possibly negative, possibly signed char to an unsigned 120 * integer for use as an array index. If the signed char is negative, 121 * we want to instead treat it as an 8-bit unsigned char, hence the 122 * double cast. 123 */ 124 #define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) 125 126 /* Enter a start condition. This macro really ought to take a parameter, 127 * but we do it the disgusting crufty way forced on us by the ()-less 128 * definition of BEGIN. 129 */ 130 #define BEGIN (yy_start) = 1 + 2 * 131 132 /* Translate the current start state into a value that can be later handed 133 * to BEGIN to return to the state. The YYSTATE alias is for lex 134 * compatibility. 135 */ 136 #define YY_START (((yy_start) - 1) / 2) 137 #define YYSTATE YY_START 138 139 /* Action number for EOF rule of a given start state. */ 140 #define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) 141 142 /* Special action meaning "start processing a new file". */ 143 #define YY_NEW_FILE yyrestart(yyin ) 144 145 #define YY_END_OF_BUFFER_CHAR 0 146 147 /* Size of default input buffer. */ 148 #ifndef YY_BUF_SIZE 149 #define YY_BUF_SIZE 16384 150 #endif 151 152 /* The state buf must be large enough to hold one state per character in the main buffer. 153 */ 154 #define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) 155 156 #ifndef YY_TYPEDEF_YY_BUFFER_STATE 157 #define YY_TYPEDEF_YY_BUFFER_STATE 158 typedef struct yy_buffer_state *YY_BUFFER_STATE; 159 #endif 160 161 extern int yyleng; 162 163 extern FILE *yyin, *yyout; 164 165 #define EOB_ACT_CONTINUE_SCAN 0 166 #define EOB_ACT_END_OF_FILE 1 167 #define EOB_ACT_LAST_MATCH 2 168 169 #define YY_LESS_LINENO(n) 170 171 /* Return all but the first "n" matched characters back to the input stream. */ 172 #define yyless(n) \ 173 do \ 174 { \ 175 /* Undo effects of setting up yytext. */ \ 176 int yyless_macro_arg = (n); \ 177 YY_LESS_LINENO(yyless_macro_arg);\ 178 *yy_cp = (yy_hold_char); \ 179 YY_RESTORE_YY_MORE_OFFSET \ 180 (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ 181 YY_DO_BEFORE_ACTION; /* set up yytext again */ \ 182 } \ 183 while ( 0 ) 184 185 #define unput(c) yyunput( c, (yytext_ptr) ) 186 187 #ifndef YY_TYPEDEF_YY_SIZE_T 188 #define YY_TYPEDEF_YY_SIZE_T 189 typedef size_t yy_size_t; 190 #endif 191 192 #ifndef YY_STRUCT_YY_BUFFER_STATE 193 #define YY_STRUCT_YY_BUFFER_STATE 194 struct yy_buffer_state 195 { 196 FILE *yy_input_file; 197 198 char *yy_ch_buf; /* input buffer */ 199 char *yy_buf_pos; /* current position in input buffer */ 200 201 /* Size of input buffer in bytes, not including room for EOB 202 * characters. 203 */ 204 yy_size_t yy_buf_size; 205 206 /* Number of characters read into yy_ch_buf, not including EOB 207 * characters. 208 */ 209 int yy_n_chars; 210 211 /* Whether we "own" the buffer - i.e., we know we created it, 212 * and can realloc() it to grow it, and should free() it to 213 * delete it. 214 */ 215 int yy_is_our_buffer; 216 217 /* Whether this is an "interactive" input source; if so, and 218 * if we're using stdio for input, then we want to use getc() 219 * instead of fread(), to make sure we stop fetching input after 220 * each newline. 221 */ 222 int yy_is_interactive; 223 224 /* Whether we're considered to be at the beginning of a line. 225 * If so, '^' rules will be active on the next match, otherwise 226 * not. 227 */ 228 int yy_at_bol; 229 230 int yy_bs_lineno; /**< The line count. */ 231 int yy_bs_column; /**< The column count. */ 232 233 /* Whether to try to fill the input buffer when we reach the 234 * end of it. 235 */ 236 int yy_fill_buffer; 237 238 int yy_buffer_status; 239 240 #define YY_BUFFER_NEW 0 241 #define YY_BUFFER_NORMAL 1 242 /* When an EOF's been seen but there's still some text to process 243 * then we mark the buffer as YY_EOF_PENDING, to indicate that we 244 * shouldn't try reading from the input source any more. We might 245 * still have a bunch of tokens to match, though, because of 246 * possible backing-up. 247 * 248 * When we actually see the EOF, we change the status to "new" 249 * (via yyrestart()), so that the user can continue scanning by 250 * just pointing yyin at a new input file. 251 */ 252 #define YY_BUFFER_EOF_PENDING 2 253 254 }; 255 #endif /* !YY_STRUCT_YY_BUFFER_STATE */ 256 257 /* Stack of input buffers. */ 258 static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ 259 static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ 260 static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */ 261 262 /* We provide macros for accessing buffer states in case in the 263 * future we want to put the buffer states in a more general 264 * "scanner state". 265 * 266 * Returns the top of the stack, or NULL. 267 */ 268 #define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ 269 ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ 270 : NULL) 271 272 /* Same as previous macro, but useful when we know that the buffer stack is not 273 * NULL or when we need an lvalue. For internal use only. 274 */ 275 #define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] 276 277 /* yy_hold_char holds the character lost when yytext is formed. */ 278 static char yy_hold_char; 279 static int yy_n_chars; /* number of characters read into yy_ch_buf */ 280 int yyleng; 281 282 /* Points to current character in buffer. */ 283 static char *yy_c_buf_p = (char *) 0; 284 static int yy_init = 0; /* whether we need to initialize */ 285 static int yy_start = 0; /* start state number */ 286 287 /* Flag which is used to allow yywrap()'s to do buffer switches 288 * instead of setting up a fresh yyin. A bit of a hack ... 289 */ 290 static int yy_did_buffer_switch_on_eof; 291 292 void yyrestart (FILE *input_file ); 293 void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ); 294 YY_BUFFER_STATE yy_create_buffer (FILE *file,int size ); 295 void yy_delete_buffer (YY_BUFFER_STATE b ); 296 void yy_flush_buffer (YY_BUFFER_STATE b ); 297 void yypush_buffer_state (YY_BUFFER_STATE new_buffer ); 298 void yypop_buffer_state (void ); 299 300 static void yyensure_buffer_stack (void ); 301 static void yy_load_buffer_state (void ); 302 static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file ); 303 304 #define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER ) 305 306 YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size ); 307 YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str ); 308 YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len ); 309 310 void *yyalloc (yy_size_t ); 311 void *yyrealloc (void *,yy_size_t ); 312 void yyfree (void * ); 313 314 #define yy_new_buffer yy_create_buffer 315 316 #define yy_set_interactive(is_interactive) \ 317 { \ 318 if ( ! YY_CURRENT_BUFFER ){ \ 319 yyensure_buffer_stack (); \ 320 YY_CURRENT_BUFFER_LVALUE = \ 321 yy_create_buffer(yyin,YY_BUF_SIZE ); \ 322 } \ 323 YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ 324 } 325 326 #define yy_set_bol(at_bol) \ 327 { \ 328 if ( ! YY_CURRENT_BUFFER ){\ 329 yyensure_buffer_stack (); \ 330 YY_CURRENT_BUFFER_LVALUE = \ 331 yy_create_buffer(yyin,YY_BUF_SIZE ); \ 332 } \ 333 YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ 334 } 335 336 #define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) 337 338 /* Begin user sect3 */ 339 340 typedef unsigned char YY_CHAR; 341 342 FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; 343 344 typedef int yy_state_type; 345 346 extern int yylineno; 347 348 int yylineno = 1; 349 350 extern char *yytext; 351 #define yytext_ptr yytext 352 353 static yy_state_type yy_get_previous_state (void ); 354 static yy_state_type yy_try_NUL_trans (yy_state_type current_state ); 355 static int yy_get_next_buffer (void ); 356 static void yy_fatal_error (yyconst char msg[] ); 357 358 /* Done after the current pattern has been matched and before the 359 * corresponding action - sets up yytext. 360 */ 361 #define YY_DO_BEFORE_ACTION \ 362 (yytext_ptr) = yy_bp; \ 363 yyleng = (size_t) (yy_cp - yy_bp); \ 364 (yy_hold_char) = *yy_cp; \ 365 *yy_cp = '\0'; \ 366 (yy_c_buf_p) = yy_cp; 367 368 #define YY_NUM_RULES 13 369 #define YY_END_OF_BUFFER 14 370 /* This struct is not used in this scanner, 371 but its presence is necessary. */ 372 struct yy_trans_info 373 { 374 flex_int32_t yy_verify; 375 flex_int32_t yy_nxt; 376 }; 377 static yyconst flex_int16_t yy_accept[33] = 378 { 0, 379 0, 0, 14, 12, 1, 1, 12, 12, 2, 2, 380 12, 12, 12, 12, 1, 9, 10, 2, 0, 0, 381 2, 6, 4, 8, 5, 7, 11, 0, 2, 0, 382 3, 0 383 } ; 384 385 static yyconst flex_int32_t yy_ec[256] = 386 { 0, 387 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 388 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 389 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 390 1, 2, 4, 1, 1, 1, 1, 5, 1, 1, 391 1, 1, 1, 1, 1, 1, 1, 6, 7, 7, 392 7, 7, 7, 7, 7, 8, 8, 9, 1, 10, 393 11, 12, 1, 1, 13, 13, 13, 13, 13, 13, 394 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 395 14, 15, 14, 14, 14, 14, 14, 16, 14, 14, 396 1, 1, 1, 1, 1, 1, 13, 13, 13, 13, 397 398 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 399 14, 14, 14, 15, 14, 14, 14, 14, 14, 16, 400 14, 14, 1, 17, 1, 1, 1, 1, 1, 1, 401 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 402 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 403 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 404 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 405 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 406 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 407 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 408 409 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 410 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 411 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 412 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 413 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 414 1, 1, 1, 1, 1 415 } ; 416 417 static yyconst flex_int32_t yy_meta[18] = 418 { 0, 419 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 420 1, 1, 3, 4, 4, 4, 1 421 } ; 422 423 static yyconst flex_int16_t yy_base[37] = 424 { 0, 425 0, 0, 46, 47, 16, 18, 34, 39, 16, 0, 426 14, 32, 15, 25, 26, 47, 47, 27, 0, 0, 427 0, 47, 47, 47, 47, 47, 47, 32, 0, 0, 428 0, 47, 38, 28, 33, 35 429 } ; 430 431 static yyconst flex_int16_t yy_def[37] = 432 { 0, 433 32, 1, 32, 32, 32, 32, 32, 32, 32, 33, 434 32, 32, 32, 32, 32, 32, 32, 32, 34, 35, 435 33, 32, 32, 32, 32, 32, 32, 34, 35, 36, 436 36, 0, 32, 32, 32, 32 437 } ; 438 439 static yyconst flex_int16_t yy_nxt[65] = 440 { 0, 441 4, 5, 6, 7, 8, 9, 10, 10, 4, 11, 442 12, 13, 4, 4, 4, 4, 14, 15, 15, 15, 443 15, 18, 18, 22, 23, 25, 26, 15, 15, 28, 444 19, 20, 18, 18, 29, 29, 31, 31, 31, 21, 445 30, 27, 24, 17, 16, 32, 3, 32, 32, 32, 446 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 447 32, 32, 32, 32 448 } ; 449 450 static yyconst flex_int16_t yy_chk[65] = 451 { 0, 452 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 453 1, 1, 1, 1, 1, 1, 1, 5, 5, 6, 454 6, 9, 9, 11, 11, 13, 13, 15, 15, 34, 455 9, 9, 18, 18, 35, 35, 36, 36, 36, 33, 456 28, 14, 12, 8, 7, 3, 32, 32, 32, 32, 457 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 458 32, 32, 32, 32 459 } ; 460 461 static yy_state_type yy_last_accepting_state; 462 static char *yy_last_accepting_cpos; 463 464 extern int yy_flex_debug; 465 int yy_flex_debug = 0; 466 467 /* The intent behind this definition is that it'll catch 468 * any uses of REJECT which flex missed. 469 */ 470 #define REJECT reject_used_but_not_detected 471 #define yymore() yymore_used_but_not_detected 472 #define YY_MORE_ADJ 0 473 #define YY_RESTORE_YY_MORE_OFFSET 474 char *yytext; 475 #line 1 "../../../usr.bin/m4/tokenizer.l" 476 #line 2 "../../../usr.bin/m4/tokenizer.l" 477 /* NetBSD: tokenizer.l,v 1.2 2009/10/26 21:11:28 christos Exp */ 478 /* $OpenBSD: tokenizer.l,v 1.6 2008/08/21 21:00:14 espie Exp $ */ 479 /* 480 * Copyright (c) 2004 Marc Espie <espie@cvs.openbsd.org> 481 * 482 * Permission to use, copy, modify, and distribute this software for any 483 * purpose with or without fee is hereby granted, provided that the above 484 * copyright notice and this permission notice appear in all copies. 485 * 486 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 487 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 488 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 489 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 490 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 491 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 492 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 493 */ 494 #if HAVE_NBTOOL_CONFIG_H 495 #include "nbtool_config.h" 496 #endif 497 #include "parser.h" 498 __RCSID("NetBSD: tokenizer.l,v 1.2 2009/10/26 21:11:28 christos Exp "); 499 #include <stdlib.h> 500 #include <errno.h> 501 #include <stdint.h> 502 #include <limits.h> 503 504 extern int mimic_gnu; 505 extern int32_t yylval; 506 extern int yylex(void); 507 extern int yywrap(void); 508 509 int32_t number(void); 510 int32_t parse_radix(void); 511 #line 509 "tokenizer.c" 512 513 #define INITIAL 0 514 515 #ifndef YY_NO_UNISTD_H 516 /* Special case for "unistd.h", since it is non-ANSI. We include it way 517 * down here because we want the user's section 1 to have been scanned first. 518 * The user has a chance to override it with an option. 519 */ 520 #include <unistd.h> 521 #endif 522 523 #ifndef YY_EXTRA_TYPE 524 #define YY_EXTRA_TYPE void * 525 #endif 526 527 static int yy_init_globals (void ); 528 529 /* Accessor methods to globals. 530 These are made visible to non-reentrant scanners for convenience. */ 531 532 int yylex_destroy (void ); 533 534 int yyget_debug (void ); 535 536 void yyset_debug (int debug_flag ); 537 538 YY_EXTRA_TYPE yyget_extra (void ); 539 540 void yyset_extra (YY_EXTRA_TYPE user_defined ); 541 542 FILE *yyget_in (void ); 543 544 void yyset_in (FILE * in_str ); 545 546 FILE *yyget_out (void ); 547 548 void yyset_out (FILE * out_str ); 549 550 int yyget_leng (void ); 551 552 char *yyget_text (void ); 553 554 int yyget_lineno (void ); 555 556 void yyset_lineno (int line_number ); 557 558 /* Macros after this point can all be overridden by user definitions in 559 * section 1. 560 */ 561 562 #ifndef YY_SKIP_YYWRAP 563 #ifdef __cplusplus 564 extern "C" int yywrap (void ); 565 #else 566 extern int yywrap (void ); 567 #endif 568 #endif 569 570 #ifndef YY_NO_UNPUT 571 572 static void yyunput (int c,char *buf_ptr ); 573 574 #endif 575 576 #ifndef yytext_ptr 577 static void yy_flex_strncpy (char *,yyconst char *,int ); 578 #endif 579 580 #ifdef YY_NEED_STRLEN 581 static int yy_flex_strlen (yyconst char * ); 582 #endif 583 584 #ifndef YY_NO_INPUT 585 586 #ifdef __cplusplus 587 static int yyinput (void ); 588 #else 589 static int input (void ); 590 #endif 591 592 #endif 593 594 /* Amount of stuff to slurp up with each read. */ 595 #ifndef YY_READ_BUF_SIZE 596 #define YY_READ_BUF_SIZE 8192 597 #endif 598 599 /* Copy whatever the last rule matched to the standard output. */ 600 #ifndef ECHO 601 /* This used to be an fputs(), but since the string might contain NUL's, 602 * we now use fwrite(). 603 */ 604 #define ECHO fwrite( yytext, yyleng, 1, yyout ) 605 #endif 606 607 /* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, 608 * is returned in "result". 609 */ 610 #ifndef YY_INPUT 611 #define YY_INPUT(buf,result,max_size) \ 612 if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ 613 { \ 614 int c = '*'; \ 615 size_t n; \ 616 for ( n = 0; n < max_size && \ 617 (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ 618 buf[n] = (char) c; \ 619 if ( c == '\n' ) \ 620 buf[n++] = (char) c; \ 621 if ( c == EOF && ferror( yyin ) ) \ 622 YY_FATAL_ERROR( "input in flex scanner failed" ); \ 623 result = n; \ 624 } \ 625 else \ 626 { \ 627 errno=0; \ 628 while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ 629 { \ 630 if( errno != EINTR) \ 631 { \ 632 YY_FATAL_ERROR( "input in flex scanner failed" ); \ 633 break; \ 634 } \ 635 errno=0; \ 636 clearerr(yyin); \ 637 } \ 638 }\ 639 \ 640 641 #endif 642 643 /* No semi-colon after return; correct usage is to write "yyterminate();" - 644 * we don't want an extra ';' after the "return" because that will cause 645 * some compilers to complain about unreachable statements. 646 */ 647 #ifndef yyterminate 648 #define yyterminate() return YY_NULL 649 #endif 650 651 /* Number of entries by which start-condition stack grows. */ 652 #ifndef YY_START_STACK_INCR 653 #define YY_START_STACK_INCR 25 654 #endif 655 656 /* Report a fatal error. */ 657 #ifndef YY_FATAL_ERROR 658 #define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) 659 #endif 660 661 /* end tables serialization structures and prototypes */ 662 663 /* Default declaration of generated scanner - a define so the user can 664 * easily add parameters. 665 */ 666 #ifndef YY_DECL 667 #define YY_DECL_IS_OURS 1 668 669 extern int yylex (void); 670 671 #define YY_DECL int yylex (void) 672 #endif /* !YY_DECL */ 673 674 /* Code executed at the beginning of each rule, after yytext and yyleng 675 * have been set up. 676 */ 677 #ifndef YY_USER_ACTION 678 #define YY_USER_ACTION 679 #endif 680 681 /* Code executed at the end of each rule. */ 682 #ifndef YY_BREAK 683 #define YY_BREAK break; 684 #endif 685 686 #define YY_RULE_SETUP \ 687 YY_USER_ACTION 688 689 /** The main scanner function which does all the work. 690 */ 691 YY_DECL 692 { 693 register yy_state_type yy_current_state; 694 register char *yy_cp, *yy_bp; 695 register int yy_act; 696 697 #line 45 "../../../usr.bin/m4/tokenizer.l" 698 699 #line 697 "tokenizer.c" 700 701 if ( !(yy_init) ) 702 { 703 (yy_init) = 1; 704 705 #ifdef YY_USER_INIT 706 YY_USER_INIT; 707 #endif 708 709 if ( ! (yy_start) ) 710 (yy_start) = 1; /* first start state */ 711 712 if ( ! yyin ) 713 yyin = stdin; 714 715 if ( ! yyout ) 716 yyout = stdout; 717 718 if ( ! YY_CURRENT_BUFFER ) { 719 yyensure_buffer_stack (); 720 YY_CURRENT_BUFFER_LVALUE = 721 yy_create_buffer(yyin,YY_BUF_SIZE ); 722 } 723 724 yy_load_buffer_state( ); 725 } 726 727 while ( 1 ) /* loops until end-of-file is reached */ 728 { 729 yy_cp = (yy_c_buf_p); 730 731 /* Support of yytext. */ 732 *yy_cp = (yy_hold_char); 733 734 /* yy_bp points to the position in yy_ch_buf of the start of 735 * the current run. 736 */ 737 yy_bp = yy_cp; 738 739 yy_current_state = (yy_start); 740 yy_match: 741 do 742 { 743 register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)]; 744 if ( yy_accept[yy_current_state] ) 745 { 746 (yy_last_accepting_state) = yy_current_state; 747 (yy_last_accepting_cpos) = yy_cp; 748 } 749 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) 750 { 751 yy_current_state = (int) yy_def[yy_current_state]; 752 if ( yy_current_state >= 33 ) 753 yy_c = yy_meta[(unsigned int) yy_c]; 754 } 755 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; 756 ++yy_cp; 757 } 758 while ( yy_base[yy_current_state] != 47 ); 759 760 yy_find_action: 761 yy_act = yy_accept[yy_current_state]; 762 if ( yy_act == 0 ) 763 { /* have to back up */ 764 yy_cp = (yy_last_accepting_cpos); 765 yy_current_state = (yy_last_accepting_state); 766 yy_act = yy_accept[yy_current_state]; 767 } 768 769 YY_DO_BEFORE_ACTION; 770 771 do_action: /* This label is used only to access EOF actions. */ 772 773 switch ( yy_act ) 774 { /* beginning of action switch */ 775 case 0: /* must back up */ 776 /* undo the effects of YY_DO_BEFORE_ACTION */ 777 *yy_cp = (yy_hold_char); 778 yy_cp = (yy_last_accepting_cpos); 779 yy_current_state = (yy_last_accepting_state); 780 goto yy_find_action; 781 782 case 1: 783 /* rule 1 can match eol */ 784 YY_RULE_SETUP 785 #line 46 "../../../usr.bin/m4/tokenizer.l" 786 {/* just skip it */} 787 YY_BREAK 788 case 2: 789 YY_RULE_SETUP 790 #line 47 "../../../usr.bin/m4/tokenizer.l" 791 { yylval = number(); return(NUMBER); } 792 YY_BREAK 793 case 3: 794 YY_RULE_SETUP 795 #line 48 "../../../usr.bin/m4/tokenizer.l" 796 { if (mimic_gnu) { 797 yylval = parse_radix(); return(NUMBER); 798 } else { 799 return(ERROR); 800 } 801 } 802 YY_BREAK 803 case 4: 804 YY_RULE_SETUP 805 #line 54 "../../../usr.bin/m4/tokenizer.l" 806 { return(LE); } 807 YY_BREAK 808 case 5: 809 YY_RULE_SETUP 810 #line 55 "../../../usr.bin/m4/tokenizer.l" 811 { return(GE); } 812 YY_BREAK 813 case 6: 814 YY_RULE_SETUP 815 #line 56 "../../../usr.bin/m4/tokenizer.l" 816 { return(LSHIFT); } 817 YY_BREAK 818 case 7: 819 YY_RULE_SETUP 820 #line 57 "../../../usr.bin/m4/tokenizer.l" 821 { return(RSHIFT); } 822 YY_BREAK 823 case 8: 824 YY_RULE_SETUP 825 #line 58 "../../../usr.bin/m4/tokenizer.l" 826 { return(EQ); } 827 YY_BREAK 828 case 9: 829 YY_RULE_SETUP 830 #line 59 "../../../usr.bin/m4/tokenizer.l" 831 { return(NE); } 832 YY_BREAK 833 case 10: 834 YY_RULE_SETUP 835 #line 60 "../../../usr.bin/m4/tokenizer.l" 836 { return(LAND); } 837 YY_BREAK 838 case 11: 839 YY_RULE_SETUP 840 #line 61 "../../../usr.bin/m4/tokenizer.l" 841 { return(LOR); } 842 YY_BREAK 843 case 12: 844 YY_RULE_SETUP 845 #line 62 "../../../usr.bin/m4/tokenizer.l" 846 { return yytext[0]; } 847 YY_BREAK 848 case 13: 849 YY_RULE_SETUP 850 #line 63 "../../../usr.bin/m4/tokenizer.l" 851 ECHO; 852 YY_BREAK 853 #line 851 "tokenizer.c" 854 case YY_STATE_EOF(INITIAL): 855 yyterminate(); 856 857 case YY_END_OF_BUFFER: 858 { 859 /* Amount of text matched not including the EOB char. */ 860 int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; 861 862 /* Undo the effects of YY_DO_BEFORE_ACTION. */ 863 *yy_cp = (yy_hold_char); 864 YY_RESTORE_YY_MORE_OFFSET 865 866 if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) 867 { 868 /* We're scanning a new file or input source. It's 869 * possible that this happened because the user 870 * just pointed yyin at a new source and called 871 * yylex(). If so, then we have to assure 872 * consistency between YY_CURRENT_BUFFER and our 873 * globals. Here is the right place to do so, because 874 * this is the first action (other than possibly a 875 * back-up) that will match for the new input source. 876 */ 877 (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; 878 YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; 879 YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; 880 } 881 882 /* Note that here we test for yy_c_buf_p "<=" to the position 883 * of the first EOB in the buffer, since yy_c_buf_p will 884 * already have been incremented past the NUL character 885 * (since all states make transitions on EOB to the 886 * end-of-buffer state). Contrast this with the test 887 * in input(). 888 */ 889 if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) 890 { /* This was really a NUL. */ 891 yy_state_type yy_next_state; 892 893 (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; 894 895 yy_current_state = yy_get_previous_state( ); 896 897 /* Okay, we're now positioned to make the NUL 898 * transition. We couldn't have 899 * yy_get_previous_state() go ahead and do it 900 * for us because it doesn't know how to deal 901 * with the possibility of jamming (and we don't 902 * want to build jamming into it because then it 903 * will run more slowly). 904 */ 905 906 yy_next_state = yy_try_NUL_trans( yy_current_state ); 907 908 yy_bp = (yytext_ptr) + YY_MORE_ADJ; 909 910 if ( yy_next_state ) 911 { 912 /* Consume the NUL. */ 913 yy_cp = ++(yy_c_buf_p); 914 yy_current_state = yy_next_state; 915 goto yy_match; 916 } 917 918 else 919 { 920 yy_cp = (yy_c_buf_p); 921 goto yy_find_action; 922 } 923 } 924 925 else switch ( yy_get_next_buffer( ) ) 926 { 927 case EOB_ACT_END_OF_FILE: 928 { 929 (yy_did_buffer_switch_on_eof) = 0; 930 931 if ( yywrap( ) ) 932 { 933 /* Note: because we've taken care in 934 * yy_get_next_buffer() to have set up 935 * yytext, we can now set up 936 * yy_c_buf_p so that if some total 937 * hoser (like flex itself) wants to 938 * call the scanner after we return the 939 * YY_NULL, it'll still work - another 940 * YY_NULL will get returned. 941 */ 942 (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; 943 944 yy_act = YY_STATE_EOF(YY_START); 945 goto do_action; 946 } 947 948 else 949 { 950 if ( ! (yy_did_buffer_switch_on_eof) ) 951 YY_NEW_FILE; 952 } 953 break; 954 } 955 956 case EOB_ACT_CONTINUE_SCAN: 957 (yy_c_buf_p) = 958 (yytext_ptr) + yy_amount_of_matched_text; 959 960 yy_current_state = yy_get_previous_state( ); 961 962 yy_cp = (yy_c_buf_p); 963 yy_bp = (yytext_ptr) + YY_MORE_ADJ; 964 goto yy_match; 965 966 case EOB_ACT_LAST_MATCH: 967 (yy_c_buf_p) = 968 &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; 969 970 yy_current_state = yy_get_previous_state( ); 971 972 yy_cp = (yy_c_buf_p); 973 yy_bp = (yytext_ptr) + YY_MORE_ADJ; 974 goto yy_find_action; 975 } 976 break; 977 } 978 979 default: 980 YY_FATAL_ERROR( 981 "fatal flex scanner internal error--no action found" ); 982 } /* end of action switch */ 983 } /* end of scanning one token */ 984 } /* end of yylex */ 985 986 /* yy_get_next_buffer - try to read in a new buffer 987 * 988 * Returns a code representing an action: 989 * EOB_ACT_LAST_MATCH - 990 * EOB_ACT_CONTINUE_SCAN - continue scanning from current position 991 * EOB_ACT_END_OF_FILE - end of file 992 */ 993 static int yy_get_next_buffer (void) 994 { 995 register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; 996 register char *source = (yytext_ptr); 997 register int number_to_move, i; 998 int ret_val; 999 1000 if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) 1001 YY_FATAL_ERROR( 1002 "fatal flex scanner internal error--end of buffer missed" ); 1003 1004 if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) 1005 { /* Don't try to fill the buffer, so this is an EOF. */ 1006 if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) 1007 { 1008 /* We matched a single character, the EOB, so 1009 * treat this as a final EOF. 1010 */ 1011 return EOB_ACT_END_OF_FILE; 1012 } 1013 1014 else 1015 { 1016 /* We matched some text prior to the EOB, first 1017 * process it. 1018 */ 1019 return EOB_ACT_LAST_MATCH; 1020 } 1021 } 1022 1023 /* Try to read more data. */ 1024 1025 /* First move last chars to start of buffer. */ 1026 number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1; 1027 1028 for ( i = 0; i < number_to_move; ++i ) 1029 *(dest++) = *(source++); 1030 1031 if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) 1032 /* don't do the read, it's not guaranteed to return an EOF, 1033 * just force an EOF 1034 */ 1035 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; 1036 1037 else 1038 { 1039 int num_to_read = 1040 YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; 1041 1042 while ( num_to_read <= 0 ) 1043 { /* Not enough room in the buffer - grow it. */ 1044 1045 /* just a shorter name for the current buffer */ 1046 YY_BUFFER_STATE b = YY_CURRENT_BUFFER; 1047 1048 int yy_c_buf_p_offset = 1049 (int) ((yy_c_buf_p) - b->yy_ch_buf); 1050 1051 if ( b->yy_is_our_buffer ) 1052 { 1053 int new_size = b->yy_buf_size * 2; 1054 1055 if ( new_size <= 0 ) 1056 b->yy_buf_size += b->yy_buf_size / 8; 1057 else 1058 b->yy_buf_size *= 2; 1059 1060 b->yy_ch_buf = (char *) 1061 /* Include room in for 2 EOB chars. */ 1062 yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ); 1063 } 1064 else 1065 /* Can't grow it, we don't own it. */ 1066 b->yy_ch_buf = 0; 1067 1068 if ( ! b->yy_ch_buf ) 1069 YY_FATAL_ERROR( 1070 "fatal error - scanner input buffer overflow" ); 1071 1072 (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset]; 1073 1074 num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - 1075 number_to_move - 1; 1076 1077 } 1078 1079 if ( num_to_read > YY_READ_BUF_SIZE ) 1080 num_to_read = YY_READ_BUF_SIZE; 1081 1082 /* Read in more data. */ 1083 YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), 1084 (yy_n_chars), (size_t) num_to_read ); 1085 1086 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); 1087 } 1088 1089 if ( (yy_n_chars) == 0 ) 1090 { 1091 if ( number_to_move == YY_MORE_ADJ ) 1092 { 1093 ret_val = EOB_ACT_END_OF_FILE; 1094 yyrestart(yyin ); 1095 } 1096 1097 else 1098 { 1099 ret_val = EOB_ACT_LAST_MATCH; 1100 YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = 1101 YY_BUFFER_EOF_PENDING; 1102 } 1103 } 1104 1105 else 1106 ret_val = EOB_ACT_CONTINUE_SCAN; 1107 1108 if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { 1109 /* Extend the array by 50%, plus the number we really need. */ 1110 yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); 1111 YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ); 1112 if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) 1113 YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); 1114 } 1115 1116 (yy_n_chars) += number_to_move; 1117 YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; 1118 YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; 1119 1120 (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; 1121 1122 return ret_val; 1123 } 1124 1125 /* yy_get_previous_state - get the state just before the EOB char was reached */ 1126 1127 static yy_state_type yy_get_previous_state (void) 1128 { 1129 register yy_state_type yy_current_state; 1130 register char *yy_cp; 1131 1132 yy_current_state = (yy_start); 1133 1134 for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) 1135 { 1136 register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); 1137 if ( yy_accept[yy_current_state] ) 1138 { 1139 (yy_last_accepting_state) = yy_current_state; 1140 (yy_last_accepting_cpos) = yy_cp; 1141 } 1142 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) 1143 { 1144 yy_current_state = (int) yy_def[yy_current_state]; 1145 if ( yy_current_state >= 33 ) 1146 yy_c = yy_meta[(unsigned int) yy_c]; 1147 } 1148 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; 1149 } 1150 1151 return yy_current_state; 1152 } 1153 1154 /* yy_try_NUL_trans - try to make a transition on the NUL character 1155 * 1156 * synopsis 1157 * next_state = yy_try_NUL_trans( current_state ); 1158 */ 1159 static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) 1160 { 1161 register int yy_is_jam; 1162 register char *yy_cp = (yy_c_buf_p); 1163 1164 register YY_CHAR yy_c = 1; 1165 if ( yy_accept[yy_current_state] ) 1166 { 1167 (yy_last_accepting_state) = yy_current_state; 1168 (yy_last_accepting_cpos) = yy_cp; 1169 } 1170 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) 1171 { 1172 yy_current_state = (int) yy_def[yy_current_state]; 1173 if ( yy_current_state >= 33 ) 1174 yy_c = yy_meta[(unsigned int) yy_c]; 1175 } 1176 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; 1177 yy_is_jam = (yy_current_state == 32); 1178 1179 return yy_is_jam ? 0 : yy_current_state; 1180 } 1181 1182 #ifndef YY_NO_UNPUT 1183 1184 static void yyunput (int c, register char * yy_bp ) 1185 { 1186 register char *yy_cp; 1187 1188 yy_cp = (yy_c_buf_p); 1189 1190 /* undo effects of setting up yytext */ 1191 *yy_cp = (yy_hold_char); 1192 1193 if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) 1194 { /* need to shift things up to make room */ 1195 /* +2 for EOB chars. */ 1196 register int number_to_move = (yy_n_chars) + 2; 1197 register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[ 1198 YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2]; 1199 register char *source = 1200 &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]; 1201 1202 while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) 1203 *--dest = *--source; 1204 1205 yy_cp += (int) (dest - source); 1206 yy_bp += (int) (dest - source); 1207 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = 1208 (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size; 1209 1210 if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) 1211 YY_FATAL_ERROR( "flex scanner push-back overflow" ); 1212 } 1213 1214 *--yy_cp = (char) c; 1215 1216 (yytext_ptr) = yy_bp; 1217 (yy_hold_char) = *yy_cp; 1218 (yy_c_buf_p) = yy_cp; 1219 } 1220 1221 #endif 1222 1223 #ifndef YY_NO_INPUT 1224 #ifdef __cplusplus 1225 static int yyinput (void) 1226 #else 1227 static int input (void) 1228 #endif 1229 1230 { 1231 int c; 1232 1233 *(yy_c_buf_p) = (yy_hold_char); 1234 1235 if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) 1236 { 1237 /* yy_c_buf_p now points to the character we want to return. 1238 * If this occurs *before* the EOB characters, then it's a 1239 * valid NUL; if not, then we've hit the end of the buffer. 1240 */ 1241 if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) 1242 /* This was really a NUL. */ 1243 *(yy_c_buf_p) = '\0'; 1244 1245 else 1246 { /* need more input */ 1247 int offset = (yy_c_buf_p) - (yytext_ptr); 1248 ++(yy_c_buf_p); 1249 1250 switch ( yy_get_next_buffer( ) ) 1251 { 1252 case EOB_ACT_LAST_MATCH: 1253 /* This happens because yy_g_n_b() 1254 * sees that we've accumulated a 1255 * token and flags that we need to 1256 * try matching the token before 1257 * proceeding. But for input(), 1258 * there's no matching to consider. 1259 * So convert the EOB_ACT_LAST_MATCH 1260 * to EOB_ACT_END_OF_FILE. 1261 */ 1262 1263 /* Reset buffer status. */ 1264 yyrestart(yyin ); 1265 1266 /*FALLTHROUGH*/ 1267 1268 case EOB_ACT_END_OF_FILE: 1269 { 1270 if ( yywrap( ) ) 1271 return EOF; 1272 1273 if ( ! (yy_did_buffer_switch_on_eof) ) 1274 YY_NEW_FILE; 1275 #ifdef __cplusplus 1276 return yyinput(); 1277 #else 1278 return input(); 1279 #endif 1280 } 1281 1282 case EOB_ACT_CONTINUE_SCAN: 1283 (yy_c_buf_p) = (yytext_ptr) + offset; 1284 break; 1285 } 1286 } 1287 } 1288 1289 c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ 1290 *(yy_c_buf_p) = '\0'; /* preserve yytext */ 1291 (yy_hold_char) = *++(yy_c_buf_p); 1292 1293 return c; 1294 } 1295 #endif /* ifndef YY_NO_INPUT */ 1296 1297 /** Immediately switch to a different input stream. 1298 * @param input_file A readable stream. 1299 * 1300 * @note This function does not reset the start condition to @c INITIAL . 1301 */ 1302 void yyrestart (FILE * input_file ) 1303 { 1304 1305 if ( ! YY_CURRENT_BUFFER ){ 1306 yyensure_buffer_stack (); 1307 YY_CURRENT_BUFFER_LVALUE = 1308 yy_create_buffer(yyin,YY_BUF_SIZE ); 1309 } 1310 1311 yy_init_buffer(YY_CURRENT_BUFFER,input_file ); 1312 yy_load_buffer_state( ); 1313 } 1314 1315 /** Switch to a different input buffer. 1316 * @param new_buffer The new input buffer. 1317 * 1318 */ 1319 void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) 1320 { 1321 1322 /* TODO. We should be able to replace this entire function body 1323 * with 1324 * yypop_buffer_state(); 1325 * yypush_buffer_state(new_buffer); 1326 */ 1327 yyensure_buffer_stack (); 1328 if ( YY_CURRENT_BUFFER == new_buffer ) 1329 return; 1330 1331 if ( YY_CURRENT_BUFFER ) 1332 { 1333 /* Flush out information for old buffer. */ 1334 *(yy_c_buf_p) = (yy_hold_char); 1335 YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); 1336 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); 1337 } 1338 1339 YY_CURRENT_BUFFER_LVALUE = new_buffer; 1340 yy_load_buffer_state( ); 1341 1342 /* We don't actually know whether we did this switch during 1343 * EOF (yywrap()) processing, but the only time this flag 1344 * is looked at is after yywrap() is called, so it's safe 1345 * to go ahead and always set it. 1346 */ 1347 (yy_did_buffer_switch_on_eof) = 1; 1348 } 1349 1350 static void yy_load_buffer_state (void) 1351 { 1352 (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; 1353 (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; 1354 yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; 1355 (yy_hold_char) = *(yy_c_buf_p); 1356 } 1357 1358 /** Allocate and initialize an input buffer state. 1359 * @param file A readable stream. 1360 * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. 1361 * 1362 * @return the allocated buffer state. 1363 */ 1364 YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) 1365 { 1366 YY_BUFFER_STATE b; 1367 1368 b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); 1369 if ( ! b ) 1370 YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); 1371 1372 b->yy_buf_size = size; 1373 1374 /* yy_ch_buf has to be 2 characters longer than the size given because 1375 * we need to put in 2 end-of-buffer characters. 1376 */ 1377 b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2 ); 1378 if ( ! b->yy_ch_buf ) 1379 YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); 1380 1381 b->yy_is_our_buffer = 1; 1382 1383 yy_init_buffer(b,file ); 1384 1385 return b; 1386 } 1387 1388 /** Destroy the buffer. 1389 * @param b a buffer created with yy_create_buffer() 1390 * 1391 */ 1392 void yy_delete_buffer (YY_BUFFER_STATE b ) 1393 { 1394 1395 if ( ! b ) 1396 return; 1397 1398 if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ 1399 YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; 1400 1401 if ( b->yy_is_our_buffer ) 1402 yyfree((void *) b->yy_ch_buf ); 1403 1404 yyfree((void *) b ); 1405 } 1406 1407 #ifndef __cplusplus 1408 extern int isatty (int ); 1409 #endif /* __cplusplus */ 1410 1411 /* Initializes or reinitializes a buffer. 1412 * This function is sometimes called more than once on the same buffer, 1413 * such as during a yyrestart() or at EOF. 1414 */ 1415 static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) 1416 1417 { 1418 int oerrno = errno; 1419 1420 yy_flush_buffer(b ); 1421 1422 b->yy_input_file = file; 1423 b->yy_fill_buffer = 1; 1424 1425 /* If b is the current buffer, then yy_init_buffer was _probably_ 1426 * called from yyrestart() or through yy_get_next_buffer. 1427 * In that case, we don't want to reset the lineno or column. 1428 */ 1429 if (b != YY_CURRENT_BUFFER){ 1430 b->yy_bs_lineno = 1; 1431 b->yy_bs_column = 0; 1432 } 1433 1434 b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; 1435 1436 errno = oerrno; 1437 } 1438 1439 /** Discard all buffered characters. On the next scan, YY_INPUT will be called. 1440 * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. 1441 * 1442 */ 1443 void yy_flush_buffer (YY_BUFFER_STATE b ) 1444 { 1445 if ( ! b ) 1446 return; 1447 1448 b->yy_n_chars = 0; 1449 1450 /* We always need two end-of-buffer characters. The first causes 1451 * a transition to the end-of-buffer state. The second causes 1452 * a jam in that state. 1453 */ 1454 b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; 1455 b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; 1456 1457 b->yy_buf_pos = &b->yy_ch_buf[0]; 1458 1459 b->yy_at_bol = 1; 1460 b->yy_buffer_status = YY_BUFFER_NEW; 1461 1462 if ( b == YY_CURRENT_BUFFER ) 1463 yy_load_buffer_state( ); 1464 } 1465 1466 /** Pushes the new state onto the stack. The new state becomes 1467 * the current state. This function will allocate the stack 1468 * if necessary. 1469 * @param new_buffer The new state. 1470 * 1471 */ 1472 void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) 1473 { 1474 if (new_buffer == NULL) 1475 return; 1476 1477 yyensure_buffer_stack(); 1478 1479 /* This block is copied from yy_switch_to_buffer. */ 1480 if ( YY_CURRENT_BUFFER ) 1481 { 1482 /* Flush out information for old buffer. */ 1483 *(yy_c_buf_p) = (yy_hold_char); 1484 YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); 1485 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); 1486 } 1487 1488 /* Only push if top exists. Otherwise, replace top. */ 1489 if (YY_CURRENT_BUFFER) 1490 (yy_buffer_stack_top)++; 1491 YY_CURRENT_BUFFER_LVALUE = new_buffer; 1492 1493 /* copied from yy_switch_to_buffer. */ 1494 yy_load_buffer_state( ); 1495 (yy_did_buffer_switch_on_eof) = 1; 1496 } 1497 1498 /** Removes and deletes the top of the stack, if present. 1499 * The next element becomes the new top. 1500 * 1501 */ 1502 void yypop_buffer_state (void) 1503 { 1504 if (!YY_CURRENT_BUFFER) 1505 return; 1506 1507 yy_delete_buffer(YY_CURRENT_BUFFER ); 1508 YY_CURRENT_BUFFER_LVALUE = NULL; 1509 if ((yy_buffer_stack_top) > 0) 1510 --(yy_buffer_stack_top); 1511 1512 if (YY_CURRENT_BUFFER) { 1513 yy_load_buffer_state( ); 1514 (yy_did_buffer_switch_on_eof) = 1; 1515 } 1516 } 1517 1518 /* Allocates the stack if it does not exist. 1519 * Guarantees space for at least one push. 1520 */ 1521 static void yyensure_buffer_stack (void) 1522 { 1523 int num_to_alloc; 1524 1525 if (!(yy_buffer_stack)) { 1526 1527 /* First allocation is just for 2 elements, since we don't know if this 1528 * scanner will even need a stack. We use 2 instead of 1 to avoid an 1529 * immediate realloc on the next call. 1530 */ 1531 num_to_alloc = 1; 1532 (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc 1533 (num_to_alloc * sizeof(struct yy_buffer_state*) 1534 ); 1535 if ( ! (yy_buffer_stack) ) 1536 YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); 1537 1538 memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); 1539 1540 (yy_buffer_stack_max) = num_to_alloc; 1541 (yy_buffer_stack_top) = 0; 1542 return; 1543 } 1544 1545 if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ 1546 1547 /* Increase the buffer to prepare for a possible push. */ 1548 int grow_size = 8 /* arbitrary grow size */; 1549 1550 num_to_alloc = (yy_buffer_stack_max) + grow_size; 1551 (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc 1552 ((yy_buffer_stack), 1553 num_to_alloc * sizeof(struct yy_buffer_state*) 1554 ); 1555 if ( ! (yy_buffer_stack) ) 1556 YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); 1557 1558 /* zero only the new slots.*/ 1559 memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); 1560 (yy_buffer_stack_max) = num_to_alloc; 1561 } 1562 } 1563 1564 /** Setup the input buffer state to scan directly from a user-specified character buffer. 1565 * @param base the character buffer 1566 * @param size the size in bytes of the character buffer 1567 * 1568 * @return the newly allocated buffer state object. 1569 */ 1570 YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) 1571 { 1572 YY_BUFFER_STATE b; 1573 1574 if ( size < 2 || 1575 base[size-2] != YY_END_OF_BUFFER_CHAR || 1576 base[size-1] != YY_END_OF_BUFFER_CHAR ) 1577 /* They forgot to leave room for the EOB's. */ 1578 return 0; 1579 1580 b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); 1581 if ( ! b ) 1582 YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); 1583 1584 b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ 1585 b->yy_buf_pos = b->yy_ch_buf = base; 1586 b->yy_is_our_buffer = 0; 1587 b->yy_input_file = 0; 1588 b->yy_n_chars = b->yy_buf_size; 1589 b->yy_is_interactive = 0; 1590 b->yy_at_bol = 1; 1591 b->yy_fill_buffer = 0; 1592 b->yy_buffer_status = YY_BUFFER_NEW; 1593 1594 yy_switch_to_buffer(b ); 1595 1596 return b; 1597 } 1598 1599 /** Setup the input buffer state to scan a string. The next call to yylex() will 1600 * scan from a @e copy of @a str. 1601 * @param yystr a NUL-terminated string to scan 1602 * 1603 * @return the newly allocated buffer state object. 1604 * @note If you want to scan bytes that may contain NUL values, then use 1605 * yy_scan_bytes() instead. 1606 */ 1607 YY_BUFFER_STATE yy_scan_string (yyconst char * yystr ) 1608 { 1609 1610 return yy_scan_bytes(yystr,strlen(yystr) ); 1611 } 1612 1613 /** Setup the input buffer state to scan the given bytes. The next call to yylex() will 1614 * scan from a @e copy of @a bytes. 1615 * @param bytes the byte buffer to scan 1616 * @param len the number of bytes in the buffer pointed to by @a bytes. 1617 * 1618 * @return the newly allocated buffer state object. 1619 */ 1620 YY_BUFFER_STATE yy_scan_bytes (yyconst char * yybytes, int _yybytes_len ) 1621 { 1622 YY_BUFFER_STATE b; 1623 char *buf; 1624 yy_size_t n; 1625 int i; 1626 1627 /* Get memory for full buffer, including space for trailing EOB's. */ 1628 n = _yybytes_len + 2; 1629 buf = (char *) yyalloc(n ); 1630 if ( ! buf ) 1631 YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); 1632 1633 for ( i = 0; i < _yybytes_len; ++i ) 1634 buf[i] = yybytes[i]; 1635 1636 buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; 1637 1638 b = yy_scan_buffer(buf,n ); 1639 if ( ! b ) 1640 YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); 1641 1642 /* It's okay to grow etc. this buffer, and we should throw it 1643 * away when we're done. 1644 */ 1645 b->yy_is_our_buffer = 1; 1646 1647 return b; 1648 } 1649 1650 #ifndef YY_EXIT_FAILURE 1651 #define YY_EXIT_FAILURE 2 1652 #endif 1653 1654 static void yy_fatal_error (yyconst char* msg ) 1655 { 1656 (void) fprintf( stderr, "%s\n", msg ); 1657 exit( YY_EXIT_FAILURE ); 1658 } 1659 1660 /* Redefine yyless() so it works in section 3 code. */ 1661 1662 #undef yyless 1663 #define yyless(n) \ 1664 do \ 1665 { \ 1666 /* Undo effects of setting up yytext. */ \ 1667 int yyless_macro_arg = (n); \ 1668 YY_LESS_LINENO(yyless_macro_arg);\ 1669 yytext[yyleng] = (yy_hold_char); \ 1670 (yy_c_buf_p) = yytext + yyless_macro_arg; \ 1671 (yy_hold_char) = *(yy_c_buf_p); \ 1672 *(yy_c_buf_p) = '\0'; \ 1673 yyleng = yyless_macro_arg; \ 1674 } \ 1675 while ( 0 ) 1676 1677 /* Accessor methods (get/set functions) to struct members. */ 1678 1679 /** Get the current line number. 1680 * 1681 */ 1682 int yyget_lineno (void) 1683 { 1684 1685 return yylineno; 1686 } 1687 1688 /** Get the input stream. 1689 * 1690 */ 1691 FILE *yyget_in (void) 1692 { 1693 return yyin; 1694 } 1695 1696 /** Get the output stream. 1697 * 1698 */ 1699 FILE *yyget_out (void) 1700 { 1701 return yyout; 1702 } 1703 1704 /** Get the length of the current token. 1705 * 1706 */ 1707 int yyget_leng (void) 1708 { 1709 return yyleng; 1710 } 1711 1712 /** Get the current token. 1713 * 1714 */ 1715 1716 char *yyget_text (void) 1717 { 1718 return yytext; 1719 } 1720 1721 /** Set the current line number. 1722 * @param line_number 1723 * 1724 */ 1725 void yyset_lineno (int line_number ) 1726 { 1727 1728 yylineno = line_number; 1729 } 1730 1731 /** Set the input stream. This does not discard the current 1732 * input buffer. 1733 * @param in_str A readable stream. 1734 * 1735 * @see yy_switch_to_buffer 1736 */ 1737 void yyset_in (FILE * in_str ) 1738 { 1739 yyin = in_str ; 1740 } 1741 1742 void yyset_out (FILE * out_str ) 1743 { 1744 yyout = out_str ; 1745 } 1746 1747 int yyget_debug (void) 1748 { 1749 return yy_flex_debug; 1750 } 1751 1752 void yyset_debug (int bdebug ) 1753 { 1754 yy_flex_debug = bdebug ; 1755 } 1756 1757 static int yy_init_globals (void) 1758 { 1759 /* Initialization is the same as for the non-reentrant scanner. 1760 * This function is called from yylex_destroy(), so don't allocate here. 1761 */ 1762 1763 (yy_buffer_stack) = 0; 1764 (yy_buffer_stack_top) = 0; 1765 (yy_buffer_stack_max) = 0; 1766 (yy_c_buf_p) = (char *) 0; 1767 (yy_init) = 0; 1768 (yy_start) = 0; 1769 1770 /* Defined in main.c */ 1771 #ifdef YY_STDINIT 1772 yyin = stdin; 1773 yyout = stdout; 1774 #else 1775 yyin = (FILE *) 0; 1776 yyout = (FILE *) 0; 1777 #endif 1778 1779 /* For future reference: Set errno on error, since we are called by 1780 * yylex_init() 1781 */ 1782 return 0; 1783 } 1784 1785 /* yylex_destroy is for both reentrant and non-reentrant scanners. */ 1786 int yylex_destroy (void) 1787 { 1788 1789 /* Pop the buffer stack, destroying each element. */ 1790 while(YY_CURRENT_BUFFER){ 1791 yy_delete_buffer(YY_CURRENT_BUFFER ); 1792 YY_CURRENT_BUFFER_LVALUE = NULL; 1793 yypop_buffer_state(); 1794 } 1795 1796 /* Destroy the stack itself. */ 1797 yyfree((yy_buffer_stack) ); 1798 (yy_buffer_stack) = NULL; 1799 1800 /* Reset the globals. This is important in a non-reentrant scanner so the next time 1801 * yylex() is called, initialization will occur. */ 1802 yy_init_globals( ); 1803 1804 return 0; 1805 } 1806 1807 /* 1808 * Internal utility routines. 1809 */ 1810 1811 #ifndef yytext_ptr 1812 static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) 1813 { 1814 register int i; 1815 for ( i = 0; i < n; ++i ) 1816 s1[i] = s2[i]; 1817 } 1818 #endif 1819 1820 #ifdef YY_NEED_STRLEN 1821 static int yy_flex_strlen (yyconst char * s ) 1822 { 1823 register int n; 1824 for ( n = 0; s[n]; ++n ) 1825 ; 1826 1827 return n; 1828 } 1829 #endif 1830 1831 void *yyalloc (yy_size_t size ) 1832 { 1833 return (void *) malloc( size ); 1834 } 1835 1836 void *yyrealloc (void * ptr, yy_size_t size ) 1837 { 1838 /* The cast to (char *) in the following accommodates both 1839 * implementations that use char* generic pointers, and those 1840 * that use void* generic pointers. It works with the latter 1841 * because both ANSI C and C++ allow castless assignment from 1842 * any pointer type to void*, and deal with argument conversions 1843 * as though doing an assignment. 1844 */ 1845 return (void *) realloc( (char *) ptr, size ); 1846 } 1847 1848 void yyfree (void * ptr ) 1849 { 1850 free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ 1851 } 1852 1853 #define YYTABLES_NAME "yytables" 1854 1855 #line 63 "../../../usr.bin/m4/tokenizer.l" 1856 1857 1858 1859 int32_t 1860 number() 1861 { 1862 long l; 1863 1864 errno = 0; 1865 l = strtol(yytext, NULL, 0); 1866 if (((l == LONG_MAX || l == LONG_MIN) && errno == ERANGE) || 1867 l > INT32_MAX || l < INT32_MIN) { 1868 fprintf(stderr, "m4: numeric overflow in expr: %s\n", yytext); 1869 } 1870 return l; 1871 } 1872 1873 int32_t 1874 parse_radix() 1875 { 1876 long base; 1877 char *next; 1878 long l; 1879 1880 l = 0; 1881 base = strtol(yytext+2, &next, 0); 1882 if (base > 36 || next == NULL) { 1883 fprintf(stderr, "m4: error in number %s\n", yytext); 1884 } else { 1885 next++; 1886 while (*next != 0) { 1887 if (*next >= '0' && *next <= '9') 1888 l = base * l + *next - '0'; 1889 else if (*next >= 'a' && *next <= 'z') 1890 l = base * l + *next - 'a' + 10; 1891 else if (*next >= 'A' && *next <= 'Z') 1892 l = base * l + *next - 'A' + 10; 1893 next++; 1894 } 1895 } 1896 return l; 1897 } 1898 1899 1900