1 2#line 3 "calc++-scanner.cc" 3 4#define YY_INT_ALIGNED short int 5 6/* A lexical scanner generated by flex */ 7 8/* %not-for-header */ 9 10/* %if-c-only */ 11/* %if-not-reentrant */ 12 13/* %endif */ 14/* %endif */ 15/* %ok-for-header */ 16 17#define FLEX_SCANNER 18#define YY_FLEX_MAJOR_VERSION 2 19#define YY_FLEX_MINOR_VERSION 5 20#define YY_FLEX_SUBMINOR_VERSION 37 21#if YY_FLEX_SUBMINOR_VERSION > 0 22#define FLEX_BETA 23#endif 24 25/* %if-c++-only */ 26/* %endif */ 27 28/* %if-c-only */ 29 30/* %endif */ 31 32/* %if-c-only */ 33 34/* %endif */ 35 36/* First, we deal with platform-specific or compiler-specific issues. */ 37 38/* begin standard C headers. */ 39/* %if-c-only */ 40#include <stdio.h> 41#include <string.h> 42#include <errno.h> 43#include <stdlib.h> 44/* %endif */ 45 46/* %if-tables-serialization */ 47/* %endif */ 48/* end standard C headers. */ 49 50/* %if-c-or-c++ */ 51/* flex integer type definitions */ 52 53#ifndef FLEXINT_H 54#define FLEXINT_H 55 56/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ 57 58#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L 59 60/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, 61 * if you want the limit (max/min) macros for int types. 62 */ 63#ifndef __STDC_LIMIT_MACROS 64#define __STDC_LIMIT_MACROS 1 65#endif 66 67#include <inttypes.h> 68typedef int8_t flex_int8_t; 69typedef uint8_t flex_uint8_t; 70typedef int16_t flex_int16_t; 71typedef uint16_t flex_uint16_t; 72typedef int32_t flex_int32_t; 73typedef uint32_t flex_uint32_t; 74#else 75typedef signed char flex_int8_t; 76typedef short int flex_int16_t; 77typedef int flex_int32_t; 78typedef unsigned char flex_uint8_t; 79typedef unsigned short int flex_uint16_t; 80typedef unsigned int flex_uint32_t; 81 82/* Limits of integral types. */ 83#ifndef INT8_MIN 84#define INT8_MIN (-128) 85#endif 86#ifndef INT16_MIN 87#define INT16_MIN (-32767-1) 88#endif 89#ifndef INT32_MIN 90#define INT32_MIN (-2147483647-1) 91#endif 92#ifndef INT8_MAX 93#define INT8_MAX (127) 94#endif 95#ifndef INT16_MAX 96#define INT16_MAX (32767) 97#endif 98#ifndef INT32_MAX 99#define INT32_MAX (2147483647) 100#endif 101#ifndef UINT8_MAX 102#define UINT8_MAX (255U) 103#endif 104#ifndef UINT16_MAX 105#define UINT16_MAX (65535U) 106#endif 107#ifndef UINT32_MAX 108#define UINT32_MAX (4294967295U) 109#endif 110 111#endif /* ! C99 */ 112 113#endif /* ! FLEXINT_H */ 114 115/* %endif */ 116 117/* %if-c++-only */ 118/* %endif */ 119 120#ifdef __cplusplus 121 122/* The "const" storage-class-modifier is valid. */ 123#define YY_USE_CONST 124 125#else /* ! __cplusplus */ 126 127/* C99 requires __STDC__ to be defined as 1. */ 128#if defined (__STDC__) 129 130#define YY_USE_CONST 131 132#endif /* defined (__STDC__) */ 133#endif /* ! __cplusplus */ 134 135#ifdef YY_USE_CONST 136#define yyconst const 137#else 138#define yyconst 139#endif 140 141/* %not-for-header */ 142 143/* Returned upon end-of-file. */ 144#define YY_NULL 0 145/* %ok-for-header */ 146 147/* %not-for-header */ 148 149/* Promotes a possibly negative, possibly signed char to an unsigned 150 * integer for use as an array index. If the signed char is negative, 151 * we want to instead treat it as an 8-bit unsigned char, hence the 152 * double cast. 153 */ 154#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) 155/* %ok-for-header */ 156 157/* %if-reentrant */ 158/* %endif */ 159 160/* %if-not-reentrant */ 161 162/* %endif */ 163 164/* Enter a start condition. This macro really ought to take a parameter, 165 * but we do it the disgusting crufty way forced on us by the ()-less 166 * definition of BEGIN. 167 */ 168#define BEGIN (yy_start) = 1 + 2 * 169 170/* Translate the current start state into a value that can be later handed 171 * to BEGIN to return to the state. The YYSTATE alias is for lex 172 * compatibility. 173 */ 174#define YY_START (((yy_start) - 1) / 2) 175#define YYSTATE YY_START 176 177/* Action number for EOF rule of a given start state. */ 178#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) 179 180/* Special action meaning "start processing a new file". */ 181#define YY_NEW_FILE yyrestart(yyin ) 182 183#define YY_END_OF_BUFFER_CHAR 0 184 185/* Size of default input buffer. */ 186#ifndef YY_BUF_SIZE 187#define YY_BUF_SIZE 16384 188#endif 189 190/* The state buf must be large enough to hold one state per character in the main buffer. 191 */ 192#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) 193 194#ifndef YY_TYPEDEF_YY_BUFFER_STATE 195#define YY_TYPEDEF_YY_BUFFER_STATE 196typedef struct yy_buffer_state *YY_BUFFER_STATE; 197#endif 198 199#ifndef YY_TYPEDEF_YY_SIZE_T 200#define YY_TYPEDEF_YY_SIZE_T 201typedef size_t yy_size_t; 202#endif 203 204/* %if-not-reentrant */ 205extern yy_size_t yyleng; 206/* %endif */ 207 208/* %if-c-only */ 209/* %if-not-reentrant */ 210extern FILE *yyin, *yyout; 211/* %endif */ 212/* %endif */ 213 214#define EOB_ACT_CONTINUE_SCAN 0 215#define EOB_ACT_END_OF_FILE 1 216#define EOB_ACT_LAST_MATCH 2 217 218 #define YY_LESS_LINENO(n) 219 220/* Return all but the first "n" matched characters back to the input stream. */ 221#define yyless(n) \ 222 do \ 223 { \ 224 /* Undo effects of setting up yytext. */ \ 225 int yyless_macro_arg = (n); \ 226 YY_LESS_LINENO(yyless_macro_arg);\ 227 *yy_cp = (yy_hold_char); \ 228 YY_RESTORE_YY_MORE_OFFSET \ 229 (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ 230 YY_DO_BEFORE_ACTION; /* set up yytext again */ \ 231 } \ 232 while ( 0 ) 233 234#define unput(c) yyunput( c, (yytext_ptr) ) 235 236#ifndef YY_STRUCT_YY_BUFFER_STATE 237#define YY_STRUCT_YY_BUFFER_STATE 238struct yy_buffer_state 239 { 240/* %if-c-only */ 241 FILE *yy_input_file; 242/* %endif */ 243 244/* %if-c++-only */ 245/* %endif */ 246 247 char *yy_ch_buf; /* input buffer */ 248 char *yy_buf_pos; /* current position in input buffer */ 249 250 /* Size of input buffer in bytes, not including room for EOB 251 * characters. 252 */ 253 yy_size_t yy_buf_size; 254 255 /* Number of characters read into yy_ch_buf, not including EOB 256 * characters. 257 */ 258 yy_size_t yy_n_chars; 259 260 /* Whether we "own" the buffer - i.e., we know we created it, 261 * and can realloc() it to grow it, and should free() it to 262 * delete it. 263 */ 264 int yy_is_our_buffer; 265 266 /* Whether this is an "interactive" input source; if so, and 267 * if we're using stdio for input, then we want to use getc() 268 * instead of fread(), to make sure we stop fetching input after 269 * each newline. 270 */ 271 int yy_is_interactive; 272 273 /* Whether we're considered to be at the beginning of a line. 274 * If so, '^' rules will be active on the next match, otherwise 275 * not. 276 */ 277 int yy_at_bol; 278 279 int yy_bs_lineno; /**< The line count. */ 280 int yy_bs_column; /**< The column count. */ 281 282 /* Whether to try to fill the input buffer when we reach the 283 * end of it. 284 */ 285 int yy_fill_buffer; 286 287 int yy_buffer_status; 288 289#define YY_BUFFER_NEW 0 290#define YY_BUFFER_NORMAL 1 291 /* When an EOF's been seen but there's still some text to process 292 * then we mark the buffer as YY_EOF_PENDING, to indicate that we 293 * shouldn't try reading from the input source any more. We might 294 * still have a bunch of tokens to match, though, because of 295 * possible backing-up. 296 * 297 * When we actually see the EOF, we change the status to "new" 298 * (via yyrestart()), so that the user can continue scanning by 299 * just pointing yyin at a new input file. 300 */ 301#define YY_BUFFER_EOF_PENDING 2 302 303 }; 304#endif /* !YY_STRUCT_YY_BUFFER_STATE */ 305 306/* %if-c-only Standard (non-C++) definition */ 307/* %not-for-header */ 308 309/* %if-not-reentrant */ 310 311/* Stack of input buffers. */ 312static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ 313static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ 314static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */ 315/* %endif */ 316/* %ok-for-header */ 317 318/* %endif */ 319 320/* We provide macros for accessing buffer states in case in the 321 * future we want to put the buffer states in a more general 322 * "scanner state". 323 * 324 * Returns the top of the stack, or NULL. 325 */ 326#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ 327 ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ 328 : NULL) 329 330/* Same as previous macro, but useful when we know that the buffer stack is not 331 * NULL or when we need an lvalue. For internal use only. 332 */ 333#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] 334 335/* %if-c-only Standard (non-C++) definition */ 336 337/* %if-not-reentrant */ 338/* %not-for-header */ 339 340/* yy_hold_char holds the character lost when yytext is formed. */ 341static char yy_hold_char; 342static yy_size_t yy_n_chars; /* number of characters read into yy_ch_buf */ 343yy_size_t yyleng; 344 345/* Points to current character in buffer. */ 346static char *yy_c_buf_p = (char *) 0; 347static int yy_init = 0; /* whether we need to initialize */ 348static int yy_start = 0; /* start state number */ 349 350/* Flag which is used to allow yywrap()'s to do buffer switches 351 * instead of setting up a fresh yyin. A bit of a hack ... 352 */ 353static int yy_did_buffer_switch_on_eof; 354/* %ok-for-header */ 355 356/* %endif */ 357 358void yyrestart (FILE *input_file ); 359void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ); 360YY_BUFFER_STATE yy_create_buffer (FILE *file,int size ); 361void yy_delete_buffer (YY_BUFFER_STATE b ); 362void yy_flush_buffer (YY_BUFFER_STATE b ); 363void yypush_buffer_state (YY_BUFFER_STATE new_buffer ); 364void yypop_buffer_state (void ); 365 366static void yyensure_buffer_stack (void ); 367static void yy_load_buffer_state (void ); 368static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file ); 369 370#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER ) 371 372YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size ); 373YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str ); 374YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,yy_size_t len ); 375 376/* %endif */ 377 378void *yyalloc (yy_size_t ); 379void *yyrealloc (void *,yy_size_t ); 380void yyfree (void * ); 381 382#define yy_new_buffer yy_create_buffer 383 384#define yy_set_interactive(is_interactive) \ 385 { \ 386 if ( ! YY_CURRENT_BUFFER ){ \ 387 yyensure_buffer_stack (); \ 388 YY_CURRENT_BUFFER_LVALUE = \ 389 yy_create_buffer(yyin,YY_BUF_SIZE ); \ 390 } \ 391 YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ 392 } 393 394#define yy_set_bol(at_bol) \ 395 { \ 396 if ( ! YY_CURRENT_BUFFER ){\ 397 yyensure_buffer_stack (); \ 398 YY_CURRENT_BUFFER_LVALUE = \ 399 yy_create_buffer(yyin,YY_BUF_SIZE ); \ 400 } \ 401 YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ 402 } 403 404#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) 405 406/* %% [1.0] yytext/yyin/yyout/yy_state_type/yylineno etc. def's & init go here */ 407/* Begin user sect3 */ 408 409#define yywrap() 1 410#define YY_SKIP_YYWRAP 411 412#define FLEX_DEBUG 413 414typedef unsigned char YY_CHAR; 415 416FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; 417 418typedef int yy_state_type; 419 420extern int yylineno; 421 422int yylineno = 1; 423 424extern char *yytext; 425#define yytext_ptr yytext 426 427/* %if-c-only Standard (non-C++) definition */ 428 429static yy_state_type yy_get_previous_state (void ); 430static yy_state_type yy_try_NUL_trans (yy_state_type current_state ); 431static int yy_get_next_buffer (void ); 432static void yy_fatal_error (yyconst char msg[] ); 433 434/* %endif */ 435 436/* Done after the current pattern has been matched and before the 437 * corresponding action - sets up yytext. 438 */ 439#define YY_DO_BEFORE_ACTION \ 440 (yytext_ptr) = yy_bp; \ 441/* %% [2.0] code to fiddle yytext and yyleng for yymore() goes here \ */\ 442 yyleng = (size_t) (yy_cp - yy_bp); \ 443 (yy_hold_char) = *yy_cp; \ 444 *yy_cp = '\0'; \ 445/* %% [3.0] code to copy yytext_ptr to yytext[] goes here, if %array \ */\ 446 (yy_c_buf_p) = yy_cp; 447 448/* %% [4.0] data tables for the DFA and the user's section 1 definitions go here */ 449#define YY_NUM_RULES 8 450#define YY_END_OF_BUFFER 9 451/* This struct is not used in this scanner, 452 but its presence is necessary. */ 453struct yy_trans_info 454 { 455 flex_int32_t yy_verify; 456 flex_int32_t yy_nxt; 457 }; 458static yyconst flex_int16_t yy_accept[17] = 459 { 0, 460 0, 0, 9, 7, 1, 2, 3, 5, 7, 6, 461 1, 2, 5, 4, 6, 0 462 } ; 463 464static yyconst flex_int32_t yy_ec[256] = 465 { 0, 466 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 467 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 468 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 469 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 470 1, 4, 4, 1, 4, 1, 4, 5, 5, 5, 471 5, 5, 5, 5, 5, 5, 5, 6, 1, 1, 472 7, 1, 1, 1, 8, 8, 8, 8, 8, 8, 473 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 474 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 475 1, 1, 1, 1, 9, 1, 8, 8, 8, 8, 476 477 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 478 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 479 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 480 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 481 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 482 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 483 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 484 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 485 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 486 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 487 488 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 489 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 490 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 491 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 492 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 493 1, 1, 1, 1, 1 494 } ; 495 496static yyconst flex_int32_t yy_meta[10] = 497 { 0, 498 1, 1, 1, 1, 2, 1, 1, 2, 2 499 } ; 500 501static yyconst flex_int16_t yy_base[18] = 502 { 0, 503 0, 0, 18, 19, 15, 13, 19, 10, 7, 0, 504 11, 9, 6, 19, 0, 19, 8 505 } ; 506 507static yyconst flex_int16_t yy_def[18] = 508 { 0, 509 16, 1, 16, 16, 16, 16, 16, 16, 16, 17, 510 16, 16, 16, 16, 17, 0, 16 511 } ; 512 513static yyconst flex_int16_t yy_nxt[29] = 514 { 0, 515 4, 5, 6, 7, 8, 9, 4, 10, 4, 15, 516 13, 12, 11, 14, 13, 12, 11, 16, 3, 16, 517 16, 16, 16, 16, 16, 16, 16, 16 518 } ; 519 520static yyconst flex_int16_t yy_chk[29] = 521 { 0, 522 1, 1, 1, 1, 1, 1, 1, 1, 1, 17, 523 13, 12, 11, 9, 8, 6, 5, 3, 16, 16, 524 16, 16, 16, 16, 16, 16, 16, 16 525 } ; 526 527static yy_state_type yy_last_accepting_state; 528static char *yy_last_accepting_cpos; 529 530extern int yy_flex_debug; 531int yy_flex_debug = 1; 532 533static yyconst flex_int16_t yy_rule_linenum[8] = 534 { 0, 535 37, 38, 44, 46, 49, 60, 66 536 } ; 537 538/* The intent behind this definition is that it'll catch 539 * any uses of REJECT which flex missed. 540 */ 541#define REJECT reject_used_but_not_detected 542#define yymore() yymore_used_but_not_detected 543#define YY_MORE_ADJ 0 544#define YY_RESTORE_YY_MORE_OFFSET 545char *yytext; 546#line 1 "calc++-scanner.ll" 547#line 2 "calc++-scanner.ll" 548# include <cstdlib> 549# include <cerrno> 550# include <climits> 551# include <string> 552# include "calc++-driver.hh" 553# include "calc++-parser.hh" 554 555/* Work around an incompatibility in flex (at least versions 556 2.5.31 through 2.5.33): it generates code that does 557 not conform to C89. See Debian bug 333231 558 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>. */ 559# undef yywrap 560# define yywrap() 1 561 562/* By default yylex returns int, we use token_type. 563 Unfortunately yyterminate by default returns 0, which is 564 not of token_type. */ 565#define yyterminate() return token::END 566#line 30 "calc++-scanner.ll" 567# define YY_USER_ACTION yylloc->columns (yyleng); 568#line 569 "calc++-scanner.cc" 569 570#define INITIAL 0 571 572#ifndef YY_NO_UNISTD_H 573/* Special case for "unistd.h", since it is non-ANSI. We include it way 574 * down here because we want the user's section 1 to have been scanned first. 575 * The user has a chance to override it with an option. 576 */ 577/* %if-c-only */ 578#include <unistd.h> 579/* %endif */ 580/* %if-c++-only */ 581/* %endif */ 582#endif 583 584#ifndef YY_EXTRA_TYPE 585#define YY_EXTRA_TYPE void * 586#endif 587 588/* %if-c-only Reentrant structure and macros (non-C++). */ 589/* %if-reentrant */ 590/* %if-c-only */ 591 592static int yy_init_globals (void ); 593 594/* %endif */ 595/* %if-reentrant */ 596/* %endif */ 597/* %endif End reentrant structures and macros. */ 598 599/* Accessor methods to globals. 600 These are made visible to non-reentrant scanners for convenience. */ 601 602int yylex_destroy (void ); 603 604int yyget_debug (void ); 605 606void yyset_debug (int debug_flag ); 607 608YY_EXTRA_TYPE yyget_extra (void ); 609 610void yyset_extra (YY_EXTRA_TYPE user_defined ); 611 612FILE *yyget_in (void ); 613 614void yyset_in (FILE * in_str ); 615 616FILE *yyget_out (void ); 617 618void yyset_out (FILE * out_str ); 619 620yy_size_t yyget_leng (void ); 621 622char *yyget_text (void ); 623 624int yyget_lineno (void ); 625 626void yyset_lineno (int line_number ); 627 628/* %if-bison-bridge */ 629/* %endif */ 630 631/* Macros after this point can all be overridden by user definitions in 632 * section 1. 633 */ 634 635#ifndef YY_SKIP_YYWRAP 636#ifdef __cplusplus 637extern "C" int yywrap (void ); 638#else 639extern int yywrap (void ); 640#endif 641#endif 642 643/* %not-for-header */ 644 645/* %ok-for-header */ 646 647/* %endif */ 648 649#ifndef yytext_ptr 650static void yy_flex_strncpy (char *,yyconst char *,int ); 651#endif 652 653#ifdef YY_NEED_STRLEN 654static int yy_flex_strlen (yyconst char * ); 655#endif 656 657#ifndef YY_NO_INPUT 658/* %if-c-only Standard (non-C++) definition */ 659/* %not-for-header */ 660 661#ifdef __cplusplus 662static int yyinput (void ); 663#else 664static int input (void ); 665#endif 666/* %ok-for-header */ 667 668/* %endif */ 669#endif 670 671/* %if-c-only */ 672 673/* %endif */ 674 675/* Amount of stuff to slurp up with each read. */ 676#ifndef YY_READ_BUF_SIZE 677#define YY_READ_BUF_SIZE 8192 678#endif 679 680/* Copy whatever the last rule matched to the standard output. */ 681#ifndef ECHO 682/* %if-c-only Standard (non-C++) definition */ 683/* This used to be an fputs(), but since the string might contain NUL's, 684 * we now use fwrite(). 685 */ 686#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0) 687/* %endif */ 688/* %if-c++-only C++ definition */ 689/* %endif */ 690#endif 691 692/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, 693 * is returned in "result". 694 */ 695#ifndef YY_INPUT 696#define YY_INPUT(buf,result,max_size) \ 697/* %% [5.0] fread()/read() definition of YY_INPUT goes here unless we're doing C++ \ */\ 698 if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ 699 { \ 700 int c = '*'; \ 701 size_t n; \ 702 for ( n = 0; n < max_size && \ 703 (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ 704 buf[n] = (char) c; \ 705 if ( c == '\n' ) \ 706 buf[n++] = (char) c; \ 707 if ( c == EOF && ferror( yyin ) ) \ 708 YY_FATAL_ERROR( "input in flex scanner failed" ); \ 709 result = n; \ 710 } \ 711 else \ 712 { \ 713 errno=0; \ 714 while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ 715 { \ 716 if( errno != EINTR) \ 717 { \ 718 YY_FATAL_ERROR( "input in flex scanner failed" ); \ 719 break; \ 720 } \ 721 errno=0; \ 722 clearerr(yyin); \ 723 } \ 724 }\ 725\ 726/* %if-c++-only C++ definition \ */\ 727/* %endif */ 728 729#endif 730 731/* No semi-colon after return; correct usage is to write "yyterminate();" - 732 * we don't want an extra ';' after the "return" because that will cause 733 * some compilers to complain about unreachable statements. 734 */ 735#ifndef yyterminate 736#define yyterminate() return YY_NULL 737#endif 738 739/* Number of entries by which start-condition stack grows. */ 740#ifndef YY_START_STACK_INCR 741#define YY_START_STACK_INCR 25 742#endif 743 744/* Report a fatal error. */ 745#ifndef YY_FATAL_ERROR 746/* %if-c-only */ 747#define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) 748/* %endif */ 749/* %if-c++-only */ 750/* %endif */ 751#endif 752 753/* %if-tables-serialization structures and prototypes */ 754/* %not-for-header */ 755 756/* %ok-for-header */ 757 758/* %not-for-header */ 759 760/* %tables-yydmap generated elements */ 761/* %endif */ 762/* end tables serialization structures and prototypes */ 763 764/* %ok-for-header */ 765 766/* Default declaration of generated scanner - a define so the user can 767 * easily add parameters. 768 */ 769#ifndef YY_DECL 770#define YY_DECL_IS_OURS 1 771/* %if-c-only Standard (non-C++) definition */ 772 773extern int yylex (void); 774 775#define YY_DECL int yylex (void) 776/* %endif */ 777/* %if-c++-only C++ definition */ 778/* %endif */ 779#endif /* !YY_DECL */ 780 781/* Code executed at the beginning of each rule, after yytext and yyleng 782 * have been set up. 783 */ 784#ifndef YY_USER_ACTION 785#define YY_USER_ACTION 786#endif 787 788/* Code executed at the end of each rule. */ 789#ifndef YY_BREAK 790#define YY_BREAK break; 791#endif 792 793/* %% [6.0] YY_RULE_SETUP definition goes here */ 794#define YY_RULE_SETUP \ 795 YY_USER_ACTION 796 797/* %not-for-header */ 798 799/** The main scanner function which does all the work. 800 */ 801YY_DECL 802{ 803 register yy_state_type yy_current_state; 804 register char *yy_cp, *yy_bp; 805 register int yy_act; 806 807/* %% [7.0] user's declarations go here */ 808#line 33 "calc++-scanner.ll" 809 810 811 yylloc->step (); 812 813#line 814 "calc++-scanner.cc" 814 815 if ( !(yy_init) ) 816 { 817 (yy_init) = 1; 818 819#ifdef YY_USER_INIT 820 YY_USER_INIT; 821#endif 822 823 if ( ! (yy_start) ) 824 (yy_start) = 1; /* first start state */ 825 826 if ( ! yyin ) 827/* %if-c-only */ 828 yyin = stdin; 829/* %endif */ 830/* %if-c++-only */ 831/* %endif */ 832 833 if ( ! yyout ) 834/* %if-c-only */ 835 yyout = stdout; 836/* %endif */ 837/* %if-c++-only */ 838/* %endif */ 839 840 if ( ! YY_CURRENT_BUFFER ) { 841 yyensure_buffer_stack (); 842 YY_CURRENT_BUFFER_LVALUE = 843 yy_create_buffer(yyin,YY_BUF_SIZE ); 844 } 845 846 yy_load_buffer_state( ); 847 } 848 849 while ( 1 ) /* loops until end-of-file is reached */ 850 { 851/* %% [8.0] yymore()-related code goes here */ 852 yy_cp = (yy_c_buf_p); 853 854 /* Support of yytext. */ 855 *yy_cp = (yy_hold_char); 856 857 /* yy_bp points to the position in yy_ch_buf of the start of 858 * the current run. 859 */ 860 yy_bp = yy_cp; 861 862/* %% [9.0] code to set up and find next match goes here */ 863 yy_current_state = (yy_start); 864yy_match: 865 do 866 { 867 register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)]; 868 if ( yy_accept[yy_current_state] ) 869 { 870 (yy_last_accepting_state) = yy_current_state; 871 (yy_last_accepting_cpos) = yy_cp; 872 } 873 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) 874 { 875 yy_current_state = (int) yy_def[yy_current_state]; 876 if ( yy_current_state >= 17 ) 877 yy_c = yy_meta[(unsigned int) yy_c]; 878 } 879 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; 880 ++yy_cp; 881 } 882 while ( yy_current_state != 16 ); 883 yy_cp = (yy_last_accepting_cpos); 884 yy_current_state = (yy_last_accepting_state); 885 886yy_find_action: 887/* %% [10.0] code to find the action number goes here */ 888 yy_act = yy_accept[yy_current_state]; 889 890 YY_DO_BEFORE_ACTION; 891 892/* %% [11.0] code for yylineno update goes here */ 893 894do_action: /* This label is used only to access EOF actions. */ 895 896/* %% [12.0] debug code goes here */ 897 if ( yy_flex_debug ) 898 { 899 if ( yy_act == 0 ) 900 fprintf( stderr, "--scanner backing up\n" ); 901 else if ( yy_act < 8 ) 902 fprintf( stderr, "--accepting rule at line %ld (\"%s\")\n", 903 (long)yy_rule_linenum[yy_act], yytext ); 904 else if ( yy_act == 8 ) 905 fprintf( stderr, "--accepting default rule (\"%s\")\n", 906 yytext ); 907 else if ( yy_act == 9 ) 908 fprintf( stderr, "--(end of buffer or a NUL)\n" ); 909 else 910 fprintf( stderr, "--EOF (start condition %d)\n", YY_START ); 911 } 912 913 switch ( yy_act ) 914 { /* beginning of action switch */ 915/* %% [13.0] actions go here */ 916 case 0: /* must back up */ 917 /* undo the effects of YY_DO_BEFORE_ACTION */ 918 *yy_cp = (yy_hold_char); 919 yy_cp = (yy_last_accepting_cpos); 920 yy_current_state = (yy_last_accepting_state); 921 goto yy_find_action; 922 923case 1: 924YY_RULE_SETUP 925#line 37 "calc++-scanner.ll" 926yylloc->step (); 927 YY_BREAK 928case 2: 929/* rule 2 can match eol */ 930YY_RULE_SETUP 931#line 38 "calc++-scanner.ll" 932yylloc->lines (yyleng); yylloc->step (); 933 YY_BREAK 934 935 typedef yy::calcxx_parser::token token; 936 937/* Convert ints to the actual type of tokens. */ 938case 3: 939YY_RULE_SETUP 940#line 44 "calc++-scanner.ll" 941return yy::calcxx_parser::token_type (yytext[0]); 942 YY_BREAK 943case 4: 944YY_RULE_SETUP 945#line 46 "calc++-scanner.ll" 946return token::ASSIGN; 947 YY_BREAK 948case 5: 949YY_RULE_SETUP 950#line 49 "calc++-scanner.ll" 951{ 952 errno = 0; 953 long n = strtol (yytext, NULL, 10); 954 if (! (INT_MIN <= n && n <= INT_MAX && errno != ERANGE)) 955 driver.error (*yylloc, "integer is out of range"); 956 yylval->ival = n; 957 return token::NUMBER; 958 } 959 YY_BREAK 960case 6: 961YY_RULE_SETUP 962#line 60 "calc++-scanner.ll" 963{ 964 yylval->sval = new std::string (yytext); 965 return token::IDENTIFIER; 966 } 967 YY_BREAK 968case 7: 969YY_RULE_SETUP 970#line 66 "calc++-scanner.ll" 971driver.error (*yylloc, "invalid character"); 972 YY_BREAK 973case 8: 974YY_RULE_SETUP 975#line 67 "calc++-scanner.ll" 976ECHO; 977 YY_BREAK 978#line 979 "calc++-scanner.cc" 979case YY_STATE_EOF(INITIAL): 980 yyterminate(); 981 982 case YY_END_OF_BUFFER: 983 { 984 /* Amount of text matched not including the EOB char. */ 985 int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; 986 987 /* Undo the effects of YY_DO_BEFORE_ACTION. */ 988 *yy_cp = (yy_hold_char); 989 YY_RESTORE_YY_MORE_OFFSET 990 991 if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) 992 { 993 /* We're scanning a new file or input source. It's 994 * possible that this happened because the user 995 * just pointed yyin at a new source and called 996 * yylex(). If so, then we have to assure 997 * consistency between YY_CURRENT_BUFFER and our 998 * globals. Here is the right place to do so, because 999 * this is the first action (other than possibly a 1000 * back-up) that will match for the new input source. 1001 */ 1002 (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; 1003 YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; 1004 YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; 1005 } 1006 1007 /* Note that here we test for yy_c_buf_p "<=" to the position 1008 * of the first EOB in the buffer, since yy_c_buf_p will 1009 * already have been incremented past the NUL character 1010 * (since all states make transitions on EOB to the 1011 * end-of-buffer state). Contrast this with the test 1012 * in input(). 1013 */ 1014 if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) 1015 { /* This was really a NUL. */ 1016 yy_state_type yy_next_state; 1017 1018 (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; 1019 1020 yy_current_state = yy_get_previous_state( ); 1021 1022 /* Okay, we're now positioned to make the NUL 1023 * transition. We couldn't have 1024 * yy_get_previous_state() go ahead and do it 1025 * for us because it doesn't know how to deal 1026 * with the possibility of jamming (and we don't 1027 * want to build jamming into it because then it 1028 * will run more slowly). 1029 */ 1030 1031 yy_next_state = yy_try_NUL_trans( yy_current_state ); 1032 1033 yy_bp = (yytext_ptr) + YY_MORE_ADJ; 1034 1035 if ( yy_next_state ) 1036 { 1037 /* Consume the NUL. */ 1038 yy_cp = ++(yy_c_buf_p); 1039 yy_current_state = yy_next_state; 1040 goto yy_match; 1041 } 1042 1043 else 1044 { 1045/* %% [14.0] code to do back-up for compressed tables and set up yy_cp goes here */ 1046 yy_cp = (yy_last_accepting_cpos); 1047 yy_current_state = (yy_last_accepting_state); 1048 goto yy_find_action; 1049 } 1050 } 1051 1052 else switch ( yy_get_next_buffer( ) ) 1053 { 1054 case EOB_ACT_END_OF_FILE: 1055 { 1056 (yy_did_buffer_switch_on_eof) = 0; 1057 1058 if ( yywrap( ) ) 1059 { 1060 /* Note: because we've taken care in 1061 * yy_get_next_buffer() to have set up 1062 * yytext, we can now set up 1063 * yy_c_buf_p so that if some total 1064 * hoser (like flex itself) wants to 1065 * call the scanner after we return the 1066 * YY_NULL, it'll still work - another 1067 * YY_NULL will get returned. 1068 */ 1069 (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; 1070 1071 yy_act = YY_STATE_EOF(YY_START); 1072 goto do_action; 1073 } 1074 1075 else 1076 { 1077 if ( ! (yy_did_buffer_switch_on_eof) ) 1078 YY_NEW_FILE; 1079 } 1080 break; 1081 } 1082 1083 case EOB_ACT_CONTINUE_SCAN: 1084 (yy_c_buf_p) = 1085 (yytext_ptr) + yy_amount_of_matched_text; 1086 1087 yy_current_state = yy_get_previous_state( ); 1088 1089 yy_cp = (yy_c_buf_p); 1090 yy_bp = (yytext_ptr) + YY_MORE_ADJ; 1091 goto yy_match; 1092 1093 case EOB_ACT_LAST_MATCH: 1094 (yy_c_buf_p) = 1095 &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; 1096 1097 yy_current_state = yy_get_previous_state( ); 1098 1099 yy_cp = (yy_c_buf_p); 1100 yy_bp = (yytext_ptr) + YY_MORE_ADJ; 1101 goto yy_find_action; 1102 } 1103 break; 1104 } 1105 1106 default: 1107 YY_FATAL_ERROR( 1108 "fatal flex scanner internal error--no action found" ); 1109 } /* end of action switch */ 1110 } /* end of scanning one token */ 1111} /* end of yylex */ 1112/* %ok-for-header */ 1113 1114/* %if-c++-only */ 1115/* %not-for-header */ 1116 1117/* %ok-for-header */ 1118 1119/* %endif */ 1120 1121/* yy_get_next_buffer - try to read in a new buffer 1122 * 1123 * Returns a code representing an action: 1124 * EOB_ACT_LAST_MATCH - 1125 * EOB_ACT_CONTINUE_SCAN - continue scanning from current position 1126 * EOB_ACT_END_OF_FILE - end of file 1127 */ 1128/* %if-c-only */ 1129static int yy_get_next_buffer (void) 1130/* %endif */ 1131/* %if-c++-only */ 1132/* %endif */ 1133{ 1134 register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; 1135 register char *source = (yytext_ptr); 1136 register int number_to_move, i; 1137 int ret_val; 1138 1139 if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) 1140 YY_FATAL_ERROR( 1141 "fatal flex scanner internal error--end of buffer missed" ); 1142 1143 if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) 1144 { /* Don't try to fill the buffer, so this is an EOF. */ 1145 if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) 1146 { 1147 /* We matched a single character, the EOB, so 1148 * treat this as a final EOF. 1149 */ 1150 return EOB_ACT_END_OF_FILE; 1151 } 1152 1153 else 1154 { 1155 /* We matched some text prior to the EOB, first 1156 * process it. 1157 */ 1158 return EOB_ACT_LAST_MATCH; 1159 } 1160 } 1161 1162 /* Try to read more data. */ 1163 1164 /* First move last chars to start of buffer. */ 1165 number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1; 1166 1167 for ( i = 0; i < number_to_move; ++i ) 1168 *(dest++) = *(source++); 1169 1170 if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) 1171 /* don't do the read, it's not guaranteed to return an EOF, 1172 * just force an EOF 1173 */ 1174 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; 1175 1176 else 1177 { 1178 yy_size_t num_to_read = 1179 YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; 1180 1181 while ( num_to_read <= 0 ) 1182 { /* Not enough room in the buffer - grow it. */ 1183 1184 /* just a shorter name for the current buffer */ 1185 YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; 1186 1187 int yy_c_buf_p_offset = 1188 (int) ((yy_c_buf_p) - b->yy_ch_buf); 1189 1190 if ( b->yy_is_our_buffer ) 1191 { 1192 yy_size_t new_size = b->yy_buf_size * 2; 1193 1194 if ( new_size <= 0 ) 1195 b->yy_buf_size += b->yy_buf_size / 8; 1196 else 1197 b->yy_buf_size *= 2; 1198 1199 b->yy_ch_buf = (char *) 1200 /* Include room in for 2 EOB chars. */ 1201 yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ); 1202 } 1203 else 1204 /* Can't grow it, we don't own it. */ 1205 b->yy_ch_buf = 0; 1206 1207 if ( ! b->yy_ch_buf ) 1208 YY_FATAL_ERROR( 1209 "fatal error - scanner input buffer overflow" ); 1210 1211 (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset]; 1212 1213 num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - 1214 number_to_move - 1; 1215 1216 } 1217 1218 if ( num_to_read > YY_READ_BUF_SIZE ) 1219 num_to_read = YY_READ_BUF_SIZE; 1220 1221 /* Read in more data. */ 1222 YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), 1223 (yy_n_chars), num_to_read ); 1224 1225 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); 1226 } 1227 1228 if ( (yy_n_chars) == 0 ) 1229 { 1230 if ( number_to_move == YY_MORE_ADJ ) 1231 { 1232 ret_val = EOB_ACT_END_OF_FILE; 1233 yyrestart(yyin ); 1234 } 1235 1236 else 1237 { 1238 ret_val = EOB_ACT_LAST_MATCH; 1239 YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = 1240 YY_BUFFER_EOF_PENDING; 1241 } 1242 } 1243 1244 else 1245 ret_val = EOB_ACT_CONTINUE_SCAN; 1246 1247 if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { 1248 /* Extend the array by 50%, plus the number we really need. */ 1249 yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); 1250 YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ); 1251 if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) 1252 YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); 1253 } 1254 1255 (yy_n_chars) += number_to_move; 1256 YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; 1257 YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; 1258 1259 (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; 1260 1261 return ret_val; 1262} 1263 1264/* yy_get_previous_state - get the state just before the EOB char was reached */ 1265 1266/* %if-c-only */ 1267/* %not-for-header */ 1268 1269 static yy_state_type yy_get_previous_state (void) 1270/* %endif */ 1271/* %if-c++-only */ 1272/* %endif */ 1273{ 1274 register yy_state_type yy_current_state; 1275 register char *yy_cp; 1276 1277/* %% [15.0] code to get the start state into yy_current_state goes here */ 1278 yy_current_state = (yy_start); 1279 1280 for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) 1281 { 1282/* %% [16.0] code to find the next state goes here */ 1283 register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); 1284 if ( yy_accept[yy_current_state] ) 1285 { 1286 (yy_last_accepting_state) = yy_current_state; 1287 (yy_last_accepting_cpos) = yy_cp; 1288 } 1289 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) 1290 { 1291 yy_current_state = (int) yy_def[yy_current_state]; 1292 if ( yy_current_state >= 17 ) 1293 yy_c = yy_meta[(unsigned int) yy_c]; 1294 } 1295 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; 1296 } 1297 1298 return yy_current_state; 1299} 1300 1301/* yy_try_NUL_trans - try to make a transition on the NUL character 1302 * 1303 * synopsis 1304 * next_state = yy_try_NUL_trans( current_state ); 1305 */ 1306/* %if-c-only */ 1307 static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) 1308/* %endif */ 1309/* %if-c++-only */ 1310/* %endif */ 1311{ 1312 register int yy_is_jam; 1313 /* %% [17.0] code to find the next state, and perhaps do backing up, goes here */ 1314 register char *yy_cp = (yy_c_buf_p); 1315 1316 register YY_CHAR yy_c = 1; 1317 if ( yy_accept[yy_current_state] ) 1318 { 1319 (yy_last_accepting_state) = yy_current_state; 1320 (yy_last_accepting_cpos) = yy_cp; 1321 } 1322 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) 1323 { 1324 yy_current_state = (int) yy_def[yy_current_state]; 1325 if ( yy_current_state >= 17 ) 1326 yy_c = yy_meta[(unsigned int) yy_c]; 1327 } 1328 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; 1329 yy_is_jam = (yy_current_state == 16); 1330 1331 return yy_is_jam ? 0 : yy_current_state; 1332} 1333 1334/* %if-c-only */ 1335 1336/* %endif */ 1337 1338/* %if-c-only */ 1339#ifndef YY_NO_INPUT 1340#ifdef __cplusplus 1341 static int yyinput (void) 1342#else 1343 static int input (void) 1344#endif 1345 1346/* %endif */ 1347/* %if-c++-only */ 1348/* %endif */ 1349{ 1350 int c; 1351 1352 *(yy_c_buf_p) = (yy_hold_char); 1353 1354 if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) 1355 { 1356 /* yy_c_buf_p now points to the character we want to return. 1357 * If this occurs *before* the EOB characters, then it's a 1358 * valid NUL; if not, then we've hit the end of the buffer. 1359 */ 1360 if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) 1361 /* This was really a NUL. */ 1362 *(yy_c_buf_p) = '\0'; 1363 1364 else 1365 { /* need more input */ 1366 yy_size_t offset = (yy_c_buf_p) - (yytext_ptr); 1367 ++(yy_c_buf_p); 1368 1369 switch ( yy_get_next_buffer( ) ) 1370 { 1371 case EOB_ACT_LAST_MATCH: 1372 /* This happens because yy_g_n_b() 1373 * sees that we've accumulated a 1374 * token and flags that we need to 1375 * try matching the token before 1376 * proceeding. But for input(), 1377 * there's no matching to consider. 1378 * So convert the EOB_ACT_LAST_MATCH 1379 * to EOB_ACT_END_OF_FILE. 1380 */ 1381 1382 /* Reset buffer status. */ 1383 yyrestart(yyin ); 1384 1385 /*FALLTHROUGH*/ 1386 1387 case EOB_ACT_END_OF_FILE: 1388 { 1389 if ( yywrap( ) ) 1390 return EOF; 1391 1392 if ( ! (yy_did_buffer_switch_on_eof) ) 1393 YY_NEW_FILE; 1394#ifdef __cplusplus 1395 return yyinput(); 1396#else 1397 return input(); 1398#endif 1399 } 1400 1401 case EOB_ACT_CONTINUE_SCAN: 1402 (yy_c_buf_p) = (yytext_ptr) + offset; 1403 break; 1404 } 1405 } 1406 } 1407 1408 c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ 1409 *(yy_c_buf_p) = '\0'; /* preserve yytext */ 1410 (yy_hold_char) = *++(yy_c_buf_p); 1411 1412/* %% [19.0] update BOL and yylineno */ 1413 1414 return c; 1415} 1416/* %if-c-only */ 1417#endif /* ifndef YY_NO_INPUT */ 1418/* %endif */ 1419 1420/** Immediately switch to a different input stream. 1421 * @param input_file A readable stream. 1422 * 1423 * @note This function does not reset the start condition to @c INITIAL . 1424 */ 1425/* %if-c-only */ 1426 void yyrestart (FILE * input_file ) 1427/* %endif */ 1428/* %if-c++-only */ 1429/* %endif */ 1430{ 1431 1432 if ( ! YY_CURRENT_BUFFER ){ 1433 yyensure_buffer_stack (); 1434 YY_CURRENT_BUFFER_LVALUE = 1435 yy_create_buffer(yyin,YY_BUF_SIZE ); 1436 } 1437 1438 yy_init_buffer(YY_CURRENT_BUFFER,input_file ); 1439 yy_load_buffer_state( ); 1440} 1441 1442/** Switch to a different input buffer. 1443 * @param new_buffer The new input buffer. 1444 * 1445 */ 1446/* %if-c-only */ 1447 void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) 1448/* %endif */ 1449/* %if-c++-only */ 1450/* %endif */ 1451{ 1452 1453 /* TODO. We should be able to replace this entire function body 1454 * with 1455 * yypop_buffer_state(); 1456 * yypush_buffer_state(new_buffer); 1457 */ 1458 yyensure_buffer_stack (); 1459 if ( YY_CURRENT_BUFFER == new_buffer ) 1460 return; 1461 1462 if ( YY_CURRENT_BUFFER ) 1463 { 1464 /* Flush out information for old buffer. */ 1465 *(yy_c_buf_p) = (yy_hold_char); 1466 YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); 1467 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); 1468 } 1469 1470 YY_CURRENT_BUFFER_LVALUE = new_buffer; 1471 yy_load_buffer_state( ); 1472 1473 /* We don't actually know whether we did this switch during 1474 * EOF (yywrap()) processing, but the only time this flag 1475 * is looked at is after yywrap() is called, so it's safe 1476 * to go ahead and always set it. 1477 */ 1478 (yy_did_buffer_switch_on_eof) = 1; 1479} 1480 1481/* %if-c-only */ 1482static void yy_load_buffer_state (void) 1483/* %endif */ 1484/* %if-c++-only */ 1485/* %endif */ 1486{ 1487 (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; 1488 (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; 1489 yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; 1490 (yy_hold_char) = *(yy_c_buf_p); 1491} 1492 1493/** Allocate and initialize an input buffer state. 1494 * @param file A readable stream. 1495 * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. 1496 * 1497 * @return the allocated buffer state. 1498 */ 1499/* %if-c-only */ 1500 YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) 1501/* %endif */ 1502/* %if-c++-only */ 1503/* %endif */ 1504{ 1505 YY_BUFFER_STATE b; 1506 1507 b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); 1508 if ( ! b ) 1509 YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); 1510 1511 b->yy_buf_size = size; 1512 1513 /* yy_ch_buf has to be 2 characters longer than the size given because 1514 * we need to put in 2 end-of-buffer characters. 1515 */ 1516 b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2 ); 1517 if ( ! b->yy_ch_buf ) 1518 YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); 1519 1520 b->yy_is_our_buffer = 1; 1521 1522 yy_init_buffer(b,file ); 1523 1524 return b; 1525} 1526 1527/** Destroy the buffer. 1528 * @param b a buffer created with yy_create_buffer() 1529 * 1530 */ 1531/* %if-c-only */ 1532 void yy_delete_buffer (YY_BUFFER_STATE b ) 1533/* %endif */ 1534/* %if-c++-only */ 1535/* %endif */ 1536{ 1537 1538 if ( ! b ) 1539 return; 1540 1541 if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ 1542 YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; 1543 1544 if ( b->yy_is_our_buffer ) 1545 yyfree((void *) b->yy_ch_buf ); 1546 1547 yyfree((void *) b ); 1548} 1549 1550/* Initializes or reinitializes a buffer. 1551 * This function is sometimes called more than once on the same buffer, 1552 * such as during a yyrestart() or at EOF. 1553 */ 1554/* %if-c-only */ 1555 static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) 1556/* %endif */ 1557/* %if-c++-only */ 1558/* %endif */ 1559 1560{ 1561 int oerrno = errno; 1562 1563 yy_flush_buffer(b ); 1564 1565 b->yy_input_file = file; 1566 b->yy_fill_buffer = 1; 1567 1568 /* If b is the current buffer, then yy_init_buffer was _probably_ 1569 * called from yyrestart() or through yy_get_next_buffer. 1570 * In that case, we don't want to reset the lineno or column. 1571 */ 1572 if (b != YY_CURRENT_BUFFER){ 1573 b->yy_bs_lineno = 1; 1574 b->yy_bs_column = 0; 1575 } 1576 1577/* %if-c-only */ 1578 1579 b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; 1580 1581/* %endif */ 1582/* %if-c++-only */ 1583/* %endif */ 1584 errno = oerrno; 1585} 1586 1587/** Discard all buffered characters. On the next scan, YY_INPUT will be called. 1588 * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. 1589 * 1590 */ 1591/* %if-c-only */ 1592 void yy_flush_buffer (YY_BUFFER_STATE b ) 1593/* %endif */ 1594/* %if-c++-only */ 1595/* %endif */ 1596{ 1597 if ( ! b ) 1598 return; 1599 1600 b->yy_n_chars = 0; 1601 1602 /* We always need two end-of-buffer characters. The first causes 1603 * a transition to the end-of-buffer state. The second causes 1604 * a jam in that state. 1605 */ 1606 b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; 1607 b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; 1608 1609 b->yy_buf_pos = &b->yy_ch_buf[0]; 1610 1611 b->yy_at_bol = 1; 1612 b->yy_buffer_status = YY_BUFFER_NEW; 1613 1614 if ( b == YY_CURRENT_BUFFER ) 1615 yy_load_buffer_state( ); 1616} 1617 1618/* %if-c-or-c++ */ 1619/** Pushes the new state onto the stack. The new state becomes 1620 * the current state. This function will allocate the stack 1621 * if necessary. 1622 * @param new_buffer The new state. 1623 * 1624 */ 1625/* %if-c-only */ 1626void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) 1627/* %endif */ 1628/* %if-c++-only */ 1629/* %endif */ 1630{ 1631 if (new_buffer == NULL) 1632 return; 1633 1634 yyensure_buffer_stack(); 1635 1636 /* This block is copied from yy_switch_to_buffer. */ 1637 if ( YY_CURRENT_BUFFER ) 1638 { 1639 /* Flush out information for old buffer. */ 1640 *(yy_c_buf_p) = (yy_hold_char); 1641 YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); 1642 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); 1643 } 1644 1645 /* Only push if top exists. Otherwise, replace top. */ 1646 if (YY_CURRENT_BUFFER) 1647 (yy_buffer_stack_top)++; 1648 YY_CURRENT_BUFFER_LVALUE = new_buffer; 1649 1650 /* copied from yy_switch_to_buffer. */ 1651 yy_load_buffer_state( ); 1652 (yy_did_buffer_switch_on_eof) = 1; 1653} 1654/* %endif */ 1655 1656/* %if-c-or-c++ */ 1657/** Removes and deletes the top of the stack, if present. 1658 * The next element becomes the new top. 1659 * 1660 */ 1661/* %if-c-only */ 1662void yypop_buffer_state (void) 1663/* %endif */ 1664/* %if-c++-only */ 1665/* %endif */ 1666{ 1667 if (!YY_CURRENT_BUFFER) 1668 return; 1669 1670 yy_delete_buffer(YY_CURRENT_BUFFER ); 1671 YY_CURRENT_BUFFER_LVALUE = NULL; 1672 if ((yy_buffer_stack_top) > 0) 1673 --(yy_buffer_stack_top); 1674 1675 if (YY_CURRENT_BUFFER) { 1676 yy_load_buffer_state( ); 1677 (yy_did_buffer_switch_on_eof) = 1; 1678 } 1679} 1680/* %endif */ 1681 1682/* %if-c-or-c++ */ 1683/* Allocates the stack if it does not exist. 1684 * Guarantees space for at least one push. 1685 */ 1686/* %if-c-only */ 1687static void yyensure_buffer_stack (void) 1688/* %endif */ 1689/* %if-c++-only */ 1690/* %endif */ 1691{ 1692 yy_size_t num_to_alloc; 1693 1694 if (!(yy_buffer_stack)) { 1695 1696 /* First allocation is just for 2 elements, since we don't know if this 1697 * scanner will even need a stack. We use 2 instead of 1 to avoid an 1698 * immediate realloc on the next call. 1699 */ 1700 num_to_alloc = 1; 1701 (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc 1702 (num_to_alloc * sizeof(struct yy_buffer_state*) 1703 ); 1704 if ( ! (yy_buffer_stack) ) 1705 YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); 1706 1707 memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); 1708 1709 (yy_buffer_stack_max) = num_to_alloc; 1710 (yy_buffer_stack_top) = 0; 1711 return; 1712 } 1713 1714 if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ 1715 1716 /* Increase the buffer to prepare for a possible push. */ 1717 int grow_size = 8 /* arbitrary grow size */; 1718 1719 num_to_alloc = (yy_buffer_stack_max) + grow_size; 1720 (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc 1721 ((yy_buffer_stack), 1722 num_to_alloc * sizeof(struct yy_buffer_state*) 1723 ); 1724 if ( ! (yy_buffer_stack) ) 1725 YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); 1726 1727 /* zero only the new slots.*/ 1728 memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); 1729 (yy_buffer_stack_max) = num_to_alloc; 1730 } 1731} 1732/* %endif */ 1733 1734/* %if-c-only */ 1735/** Setup the input buffer state to scan directly from a user-specified character buffer. 1736 * @param base the character buffer 1737 * @param size the size in bytes of the character buffer 1738 * 1739 * @return the newly allocated buffer state object. 1740 */ 1741YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) 1742{ 1743 YY_BUFFER_STATE b; 1744 1745 if ( size < 2 || 1746 base[size-2] != YY_END_OF_BUFFER_CHAR || 1747 base[size-1] != YY_END_OF_BUFFER_CHAR ) 1748 /* They forgot to leave room for the EOB's. */ 1749 return 0; 1750 1751 b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); 1752 if ( ! b ) 1753 YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); 1754 1755 b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ 1756 b->yy_buf_pos = b->yy_ch_buf = base; 1757 b->yy_is_our_buffer = 0; 1758 b->yy_input_file = 0; 1759 b->yy_n_chars = b->yy_buf_size; 1760 b->yy_is_interactive = 0; 1761 b->yy_at_bol = 1; 1762 b->yy_fill_buffer = 0; 1763 b->yy_buffer_status = YY_BUFFER_NEW; 1764 1765 yy_switch_to_buffer(b ); 1766 1767 return b; 1768} 1769/* %endif */ 1770 1771/* %if-c-only */ 1772/** Setup the input buffer state to scan a string. The next call to yylex() will 1773 * scan from a @e copy of @a str. 1774 * @param yystr a NUL-terminated string to scan 1775 * 1776 * @return the newly allocated buffer state object. 1777 * @note If you want to scan bytes that may contain NUL values, then use 1778 * yy_scan_bytes() instead. 1779 */ 1780YY_BUFFER_STATE yy_scan_string (yyconst char * yystr ) 1781{ 1782 1783 return yy_scan_bytes(yystr,strlen(yystr) ); 1784} 1785/* %endif */ 1786 1787/* %if-c-only */ 1788/** Setup the input buffer state to scan the given bytes. The next call to yylex() will 1789 * scan from a @e copy of @a bytes. 1790 * @param yybytes the byte buffer to scan 1791 * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. 1792 * 1793 * @return the newly allocated buffer state object. 1794 */ 1795YY_BUFFER_STATE yy_scan_bytes (yyconst char * yybytes, yy_size_t _yybytes_len ) 1796{ 1797 YY_BUFFER_STATE b; 1798 char *buf; 1799 yy_size_t n; 1800 int i; 1801 1802 /* Get memory for full buffer, including space for trailing EOB's. */ 1803 n = _yybytes_len + 2; 1804 buf = (char *) yyalloc(n ); 1805 if ( ! buf ) 1806 YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); 1807 1808 for ( i = 0; i < _yybytes_len; ++i ) 1809 buf[i] = yybytes[i]; 1810 1811 buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; 1812 1813 b = yy_scan_buffer(buf,n ); 1814 if ( ! b ) 1815 YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); 1816 1817 /* It's okay to grow etc. this buffer, and we should throw it 1818 * away when we're done. 1819 */ 1820 b->yy_is_our_buffer = 1; 1821 1822 return b; 1823} 1824/* %endif */ 1825 1826#ifndef YY_EXIT_FAILURE 1827#define YY_EXIT_FAILURE 2 1828#endif 1829 1830/* %if-c-only */ 1831static void yy_fatal_error (yyconst char* msg ) 1832{ 1833 (void) fprintf( stderr, "%s\n", msg ); 1834 exit( YY_EXIT_FAILURE ); 1835} 1836/* %endif */ 1837/* %if-c++-only */ 1838/* %endif */ 1839 1840/* Redefine yyless() so it works in section 3 code. */ 1841 1842#undef yyless 1843#define yyless(n) \ 1844 do \ 1845 { \ 1846 /* Undo effects of setting up yytext. */ \ 1847 int yyless_macro_arg = (n); \ 1848 YY_LESS_LINENO(yyless_macro_arg);\ 1849 yytext[yyleng] = (yy_hold_char); \ 1850 (yy_c_buf_p) = yytext + yyless_macro_arg; \ 1851 (yy_hold_char) = *(yy_c_buf_p); \ 1852 *(yy_c_buf_p) = '\0'; \ 1853 yyleng = yyless_macro_arg; \ 1854 } \ 1855 while ( 0 ) 1856 1857/* Accessor methods (get/set functions) to struct members. */ 1858 1859/* %if-c-only */ 1860/* %if-reentrant */ 1861/* %endif */ 1862 1863/** Get the current line number. 1864 * 1865 */ 1866int yyget_lineno (void) 1867{ 1868 1869 return yylineno; 1870} 1871 1872/** Get the input stream. 1873 * 1874 */ 1875FILE *yyget_in (void) 1876{ 1877 return yyin; 1878} 1879 1880/** Get the output stream. 1881 * 1882 */ 1883FILE *yyget_out (void) 1884{ 1885 return yyout; 1886} 1887 1888/** Get the length of the current token. 1889 * 1890 */ 1891yy_size_t yyget_leng (void) 1892{ 1893 return yyleng; 1894} 1895 1896/** Get the current token. 1897 * 1898 */ 1899 1900char *yyget_text (void) 1901{ 1902 return yytext; 1903} 1904 1905/* %if-reentrant */ 1906/* %endif */ 1907 1908/** Set the current line number. 1909 * @param line_number 1910 * 1911 */ 1912void yyset_lineno (int line_number ) 1913{ 1914 1915 yylineno = line_number; 1916} 1917 1918/** Set the input stream. This does not discard the current 1919 * input buffer. 1920 * @param in_str A readable stream. 1921 * 1922 * @see yy_switch_to_buffer 1923 */ 1924void yyset_in (FILE * in_str ) 1925{ 1926 yyin = in_str ; 1927} 1928 1929void yyset_out (FILE * out_str ) 1930{ 1931 yyout = out_str ; 1932} 1933 1934int yyget_debug (void) 1935{ 1936 return yy_flex_debug; 1937} 1938 1939void yyset_debug (int bdebug ) 1940{ 1941 yy_flex_debug = bdebug ; 1942} 1943 1944/* %endif */ 1945 1946/* %if-reentrant */ 1947/* %if-bison-bridge */ 1948/* %endif */ 1949/* %endif if-c-only */ 1950 1951/* %if-c-only */ 1952static int yy_init_globals (void) 1953{ 1954 /* Initialization is the same as for the non-reentrant scanner. 1955 * This function is called from yylex_destroy(), so don't allocate here. 1956 */ 1957 1958 (yy_buffer_stack) = 0; 1959 (yy_buffer_stack_top) = 0; 1960 (yy_buffer_stack_max) = 0; 1961 (yy_c_buf_p) = (char *) 0; 1962 (yy_init) = 0; 1963 (yy_start) = 0; 1964 1965/* Defined in main.c */ 1966#ifdef YY_STDINIT 1967 yyin = stdin; 1968 yyout = stdout; 1969#else 1970 yyin = (FILE *) 0; 1971 yyout = (FILE *) 0; 1972#endif 1973 1974 /* For future reference: Set errno on error, since we are called by 1975 * yylex_init() 1976 */ 1977 return 0; 1978} 1979/* %endif */ 1980 1981/* %if-c-only SNIP! this currently causes conflicts with the c++ scanner */ 1982/* yylex_destroy is for both reentrant and non-reentrant scanners. */ 1983int yylex_destroy (void) 1984{ 1985 1986 /* Pop the buffer stack, destroying each element. */ 1987 while(YY_CURRENT_BUFFER){ 1988 yy_delete_buffer(YY_CURRENT_BUFFER ); 1989 YY_CURRENT_BUFFER_LVALUE = NULL; 1990 yypop_buffer_state(); 1991 } 1992 1993 /* Destroy the stack itself. */ 1994 yyfree((yy_buffer_stack) ); 1995 (yy_buffer_stack) = NULL; 1996 1997 /* Reset the globals. This is important in a non-reentrant scanner so the next time 1998 * yylex() is called, initialization will occur. */ 1999 yy_init_globals( ); 2000 2001/* %if-reentrant */ 2002/* %endif */ 2003 return 0; 2004} 2005/* %endif */ 2006 2007/* 2008 * Internal utility routines. 2009 */ 2010 2011#ifndef yytext_ptr 2012static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) 2013{ 2014 register int i; 2015 for ( i = 0; i < n; ++i ) 2016 s1[i] = s2[i]; 2017} 2018#endif 2019 2020#ifdef YY_NEED_STRLEN 2021static int yy_flex_strlen (yyconst char * s ) 2022{ 2023 register int n; 2024 for ( n = 0; s[n]; ++n ) 2025 ; 2026 2027 return n; 2028} 2029#endif 2030 2031void *yyalloc (yy_size_t size ) 2032{ 2033 return (void *) malloc( size ); 2034} 2035 2036void *yyrealloc (void * ptr, yy_size_t size ) 2037{ 2038 /* The cast to (char *) in the following accommodates both 2039 * implementations that use char* generic pointers, and those 2040 * that use void* generic pointers. It works with the latter 2041 * because both ANSI C and C++ allow castless assignment from 2042 * any pointer type to void*, and deal with argument conversions 2043 * as though doing an assignment. 2044 */ 2045 return (void *) realloc( (char *) ptr, size ); 2046} 2047 2048void yyfree (void * ptr ) 2049{ 2050 free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ 2051} 2052 2053/* %if-tables-serialization definitions */ 2054/* %define-yytables The name for this specific scanner's tables. */ 2055#define YYTABLES_NAME "yytables" 2056/* %endif */ 2057 2058/* %ok-for-header */ 2059 2060#line 67 "calc++-scanner.ll" 2061 2062 2063 2064 2065void 2066calcxx_driver::scan_begin () 2067{ 2068 yy_flex_debug = trace_scanning; 2069 if (file.empty () || file == "-") 2070 yyin = stdin; 2071 else if (!(yyin = fopen (file.c_str (), "r"))) 2072 { 2073 error ("cannot open " + file + ": " + strerror(errno)); 2074 exit (EXIT_FAILURE); 2075 } 2076} 2077 2078 2079 2080void 2081calcxx_driver::scan_end () 2082{ 2083 fclose (yyin); 2084} 2085 2086 2087