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Diffstat (limited to 'libs/angle/src/compiler/preprocessor/Tokenizer.cpp')
| -rw-r--r-- | libs/angle/src/compiler/preprocessor/Tokenizer.cpp | 2412 |
1 files changed, 2412 insertions, 0 deletions
diff --git a/libs/angle/src/compiler/preprocessor/Tokenizer.cpp b/libs/angle/src/compiler/preprocessor/Tokenizer.cpp new file mode 100644 index 000000000..eb6156f47 --- /dev/null +++ b/libs/angle/src/compiler/preprocessor/Tokenizer.cpp @@ -0,0 +1,2412 @@ +#line 16 "./Tokenizer.l" +// +// Copyright (c) 2011-2014 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// This file is auto-generated by generate_parser.sh. DO NOT EDIT! + + + +#line 13 "./Tokenizer.cpp" + +#define YY_INT_ALIGNED short int + +/* A lexical scanner generated by flex */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 5 +#define YY_FLEX_SUBMINOR_VERSION 39 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +/* First, we deal with platform-specific or compiler-specific issues. */ + +/* begin standard C headers. */ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <stdlib.h> + +/* end standard C headers. */ + +/* flex integer type definitions */ + +#ifndef FLEXINT_H +#define FLEXINT_H + +/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ + +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + +#include <inttypes.h> +typedef int8_t flex_int8_t; +typedef uint8_t flex_uint8_t; +typedef int16_t flex_int16_t; +typedef uint16_t flex_uint16_t; +typedef int32_t flex_int32_t; +typedef uint32_t flex_uint32_t; +typedef uint64_t flex_uint64_t; +#else +typedef signed char flex_int8_t; +typedef short int flex_int16_t; +typedef int flex_int32_t; +typedef unsigned char flex_uint8_t; +typedef unsigned short int flex_uint16_t; +typedef unsigned int flex_uint32_t; + +/* Limits of integral types. */ +#ifndef INT8_MIN +#define INT8_MIN (-128) +#endif +#ifndef INT16_MIN +#define INT16_MIN (-32767-1) +#endif +#ifndef INT32_MIN +#define INT32_MIN (-2147483647-1) +#endif +#ifndef INT8_MAX +#define INT8_MAX (127) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif +#ifndef INT32_MAX +#define INT32_MAX (2147483647) +#endif +#ifndef UINT8_MAX +#define UINT8_MAX (255U) +#endif +#ifndef UINT16_MAX +#define UINT16_MAX (65535U) +#endif +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +#ifdef __cplusplus + +/* The "const" storage-class-modifier is valid. */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +/* C99 requires __STDC__ to be defined as 1. */ +#if defined (__STDC__) + +#define YY_USE_CONST + +#endif /* defined (__STDC__) */ +#endif /* ! __cplusplus */ + +#ifdef YY_USE_CONST +#define yyconst const +#else +#define yyconst +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an unsigned + * integer for use as an array index. If the signed char is negative, + * we want to instead treat it as an 8-bit unsigned char, hence the + * double cast. + */ +#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) + +/* An opaque pointer. */ +#ifndef YY_TYPEDEF_YY_SCANNER_T +#define YY_TYPEDEF_YY_SCANNER_T +typedef void* yyscan_t; +#endif + +/* For convenience, these vars (plus the bison vars far below) + are macros in the reentrant scanner. */ +#define yyin yyg->yyin_r +#define yyout yyg->yyout_r +#define yyextra yyg->yyextra_r +#define yyleng yyg->yyleng_r +#define yytext yyg->yytext_r +#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno) +#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column) +#define yy_flex_debug yyg->yy_flex_debug_r + +/* Enter a start condition. This macro really ought to take a parameter, + * but we do it the disgusting crufty way forced on us by the ()-less + * definition of BEGIN. + */ +#define BEGIN yyg->yy_start = 1 + 2 * + +/* Translate the current start state into a value that can be later handed + * to BEGIN to return to the state. The YYSTATE alias is for lex + * compatibility. + */ +#define YY_START ((yyg->yy_start - 1) / 2) +#define YYSTATE YY_START + +/* Action number for EOF rule of a given start state. */ +#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) + +/* Special action meaning "start processing a new file". */ +#define YY_NEW_FILE pprestart(yyin ,yyscanner ) + +#define YY_END_OF_BUFFER_CHAR 0 + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#define YY_BUF_SIZE 16384 +#endif + +/* The state buf must be large enough to hold one state per character in the main buffer. + */ +#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) + +#ifndef YY_TYPEDEF_YY_BUFFER_STATE +#define YY_TYPEDEF_YY_BUFFER_STATE +typedef struct yy_buffer_state *YY_BUFFER_STATE; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +#define EOB_ACT_CONTINUE_SCAN 0 +#define EOB_ACT_END_OF_FILE 1 +#define EOB_ACT_LAST_MATCH 2 + + #define YY_LESS_LINENO(n) + #define YY_LINENO_REWIND_TO(ptr) + +/* Return all but the first "n" matched characters back to the input stream. */ +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + *yy_cp = yyg->yy_hold_char; \ + YY_RESTORE_YY_MORE_OFFSET \ + yyg->yy_c_buf_p = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ + YY_DO_BEFORE_ACTION; /* set up yytext again */ \ + } \ + while ( 0 ) + +#define unput(c) yyunput( c, yyg->yytext_ptr , yyscanner ) + +#ifndef YY_STRUCT_YY_BUFFER_STATE +#define YY_STRUCT_YY_BUFFER_STATE +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + yy_size_t yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + yy_size_t yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + int yy_bs_lineno; /**< The line count. */ + int yy_bs_column; /**< The column count. */ + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; + +#define YY_BUFFER_NEW 0 +#define YY_BUFFER_NORMAL 1 + /* When an EOF's been seen but there's still some text to process + * then we mark the buffer as YY_EOF_PENDING, to indicate that we + * shouldn't try reading from the input source any more. We might + * still have a bunch of tokens to match, though, because of + * possible backing-up. + * + * When we actually see the EOF, we change the status to "new" + * (via pprestart()), so that the user can continue scanning by + * just pointing yyin at a new input file. + */ +#define YY_BUFFER_EOF_PENDING 2 + + }; +#endif /* !YY_STRUCT_YY_BUFFER_STATE */ + +/* We provide macros for accessing buffer states in case in the + * future we want to put the buffer states in a more general + * "scanner state". + * + * Returns the top of the stack, or NULL. + */ +#define YY_CURRENT_BUFFER ( yyg->yy_buffer_stack \ + ? yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] \ + : NULL) + +/* Same as previous macro, but useful when we know that the buffer stack is not + * NULL or when we need an lvalue. For internal use only. + */ +#define YY_CURRENT_BUFFER_LVALUE yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] + +void pprestart (FILE *input_file ,yyscan_t yyscanner ); +void pp_switch_to_buffer (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner ); +YY_BUFFER_STATE pp_create_buffer (FILE *file,int size ,yyscan_t yyscanner ); +void pp_delete_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner ); +void pp_flush_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner ); +void pppush_buffer_state (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner ); +void pppop_buffer_state (yyscan_t yyscanner ); + +static void ppensure_buffer_stack (yyscan_t yyscanner ); +static void pp_load_buffer_state (yyscan_t yyscanner ); +static void pp_init_buffer (YY_BUFFER_STATE b,FILE *file ,yyscan_t yyscanner ); + +#define YY_FLUSH_BUFFER pp_flush_buffer(YY_CURRENT_BUFFER ,yyscanner) + +YY_BUFFER_STATE pp_scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner ); +YY_BUFFER_STATE pp_scan_string (yyconst char *yy_str ,yyscan_t yyscanner ); +YY_BUFFER_STATE pp_scan_bytes (yyconst char *bytes,yy_size_t len ,yyscan_t yyscanner ); + +void *ppalloc (yy_size_t ,yyscan_t yyscanner ); +void *pprealloc (void *,yy_size_t ,yyscan_t yyscanner ); +void ppfree (void * ,yyscan_t yyscanner ); + +#define yy_new_buffer pp_create_buffer + +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! YY_CURRENT_BUFFER ){ \ + ppensure_buffer_stack (yyscanner); \ + YY_CURRENT_BUFFER_LVALUE = \ + pp_create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ + } + +#define yy_set_bol(at_bol) \ + { \ + if ( ! YY_CURRENT_BUFFER ){\ + ppensure_buffer_stack (yyscanner); \ + YY_CURRENT_BUFFER_LVALUE = \ + pp_create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ + } + +#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) + +/* Begin user sect3 */ + +#define ppwrap(yyscanner) 1 +#define YY_SKIP_YYWRAP + +typedef unsigned char YY_CHAR; + +typedef int yy_state_type; + +#define yytext_ptr yytext_r + +static yy_state_type yy_get_previous_state (yyscan_t yyscanner ); +static yy_state_type yy_try_NUL_trans (yy_state_type current_state ,yyscan_t yyscanner); +static int yy_get_next_buffer (yyscan_t yyscanner ); +static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner ); + +/* Done after the current pattern has been matched and before the + * corresponding action - sets up yytext. + */ +#define YY_DO_BEFORE_ACTION \ + yyg->yytext_ptr = yy_bp; \ + yyleng = (yy_size_t) (yy_cp - yy_bp); \ + yyg->yy_hold_char = *yy_cp; \ + *yy_cp = '\0'; \ + yyg->yy_c_buf_p = yy_cp; + +#define YY_NUM_RULES 38 +#define YY_END_OF_BUFFER 39 +/* This struct is not used in this scanner, + but its presence is necessary. */ +struct yy_trans_info + { + flex_int32_t yy_verify; + flex_int32_t yy_nxt; + }; +static yyconst flex_int16_t yy_accept[98] = + { 0, + 0, 0, 0, 0, 39, 37, 34, 35, 35, 33, + 7, 33, 33, 33, 33, 33, 33, 33, 33, 9, + 9, 33, 33, 33, 8, 37, 33, 33, 3, 5, + 5, 4, 34, 35, 19, 27, 20, 30, 25, 12, + 23, 13, 24, 10, 2, 1, 26, 10, 9, 11, + 11, 11, 9, 11, 9, 9, 14, 16, 18, 17, + 15, 8, 36, 36, 31, 21, 32, 22, 3, 5, + 6, 11, 10, 11, 10, 1, 10, 11, 10, 0, + 10, 9, 9, 9, 28, 29, 0, 10, 10, 10, + 10, 9, 10, 10, 9, 10, 0 + + } ; + +static yyconst flex_int32_t yy_ec[256] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, + 2, 2, 4, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 2, 5, 1, 6, 1, 7, 8, 1, 9, + 9, 10, 11, 9, 12, 13, 14, 15, 16, 16, + 16, 16, 16, 16, 16, 17, 17, 9, 9, 18, + 19, 20, 9, 1, 21, 21, 21, 21, 22, 23, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 25, 24, 24, 26, 24, 24, + 9, 27, 9, 28, 24, 1, 21, 21, 21, 21, + + 22, 23, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 25, 24, 24, 26, + 24, 24, 9, 29, 9, 9, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1 + } ; + +static yyconst flex_int32_t yy_meta[30] = + { 0, + 1, 1, 2, 2, 1, 1, 1, 1, 1, 3, + 1, 1, 4, 1, 5, 5, 5, 1, 1, 1, + 5, 5, 5, 5, 5, 5, 1, 1, 1 + } ; + +static yyconst flex_int16_t yy_base[103] = + { 0, + 0, 0, 27, 29, 137, 194, 133, 194, 117, 100, + 194, 98, 26, 194, 94, 24, 28, 33, 32, 39, + 51, 39, 80, 50, 0, 68, 25, 54, 0, 194, + 88, 71, 80, 194, 194, 194, 194, 194, 194, 194, + 194, 194, 194, 71, 194, 0, 194, 85, 55, 64, + 99, 111, 53, 105, 0, 50, 55, 194, 194, 194, + 40, 0, 194, 38, 194, 194, 194, 194, 0, 194, + 194, 117, 0, 130, 0, 0, 0, 137, 0, 88, + 113, 0, 131, 0, 194, 194, 143, 139, 152, 150, + 0, 13, 153, 194, 0, 194, 194, 176, 31, 181, + + 186, 188 + } ; + +static yyconst flex_int16_t yy_def[103] = + { 0, + 97, 1, 98, 98, 97, 97, 97, 97, 97, 97, + 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, + 20, 97, 97, 97, 99, 97, 97, 97, 100, 97, + 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, + 97, 97, 97, 97, 97, 101, 97, 97, 20, 20, + 50, 51, 51, 102, 21, 51, 97, 97, 97, 97, + 97, 99, 97, 97, 97, 97, 97, 97, 100, 97, + 97, 44, 44, 72, 72, 101, 48, 51, 51, 97, + 52, 51, 102, 51, 97, 97, 97, 74, 78, 97, + 51, 51, 97, 97, 51, 97, 0, 97, 97, 97, + + 97, 97 + } ; + +static yyconst flex_int16_t yy_nxt[224] = + { 0, + 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 21, 22, 23, 24, + 25, 25, 25, 25, 25, 25, 26, 27, 28, 30, + 31, 30, 31, 37, 40, 62, 32, 95, 32, 42, + 63, 45, 41, 65, 38, 46, 43, 44, 44, 44, + 47, 48, 66, 49, 49, 50, 57, 58, 86, 51, + 52, 51, 51, 53, 54, 55, 55, 55, 60, 61, + 63, 64, 67, 85, 84, 56, 51, 82, 50, 50, + 51, 33, 68, 72, 71, 73, 73, 73, 51, 51, + 70, 72, 74, 75, 72, 72, 72, 51, 59, 77, + + 77, 77, 90, 90, 90, 51, 78, 79, 51, 51, + 51, 51, 39, 51, 51, 51, 36, 51, 35, 34, + 51, 80, 80, 97, 97, 81, 81, 81, 51, 51, + 51, 72, 72, 72, 33, 91, 97, 97, 72, 72, + 87, 87, 97, 51, 88, 88, 88, 87, 87, 97, + 97, 89, 89, 89, 51, 92, 51, 93, 93, 93, + 97, 75, 97, 97, 90, 90, 90, 93, 93, 93, + 97, 97, 94, 97, 79, 96, 29, 29, 29, 29, + 29, 69, 97, 97, 69, 69, 76, 97, 76, 76, + 76, 83, 83, 5, 97, 97, 97, 97, 97, 97, + + 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, + 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, + 97, 97, 97 + } ; + +static yyconst flex_int16_t yy_chk[224] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, + 3, 4, 4, 13, 16, 99, 3, 92, 4, 17, + 64, 19, 16, 27, 13, 19, 17, 18, 18, 18, + 19, 20, 27, 20, 20, 20, 22, 22, 61, 20, + 20, 20, 20, 20, 20, 21, 21, 21, 24, 24, + 26, 26, 28, 57, 56, 21, 21, 53, 50, 50, + 49, 33, 28, 44, 32, 44, 44, 44, 50, 50, + 31, 44, 44, 44, 44, 44, 44, 48, 23, 48, + + 48, 48, 80, 80, 80, 48, 48, 48, 48, 48, + 48, 51, 15, 51, 51, 51, 12, 54, 10, 9, + 51, 52, 52, 81, 81, 52, 52, 52, 54, 54, + 54, 72, 72, 72, 7, 81, 5, 0, 72, 72, + 74, 74, 0, 83, 74, 74, 74, 78, 78, 88, + 88, 78, 78, 78, 83, 83, 83, 87, 87, 87, + 0, 88, 89, 89, 90, 90, 90, 93, 93, 93, + 0, 0, 90, 0, 89, 93, 98, 98, 98, 98, + 98, 100, 0, 0, 100, 100, 101, 0, 101, 101, + 101, 102, 102, 97, 97, 97, 97, 97, 97, 97, + + 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, + 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, + 97, 97, 97 + } ; + +/* The intent behind this definition is that it'll catch + * any uses of REJECT which flex missed. + */ +#define REJECT reject_used_but_not_detected +#define yymore() yymore_used_but_not_detected +#define YY_MORE_ADJ 0 +#define YY_RESTORE_YY_MORE_OFFSET +/* +// +// Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +This file contains the Lex specification for GLSL ES preprocessor. +Based on Microsoft Visual Studio 2010 Preprocessor Grammar: +http://msdn.microsoft.com/en-us/library/2scxys89.aspx + +IF YOU MODIFY THIS FILE YOU ALSO NEED TO RUN generate_parser.sh. +*/ + +#if defined(_MSC_VER) +#pragma warning(disable: 4005) +#endif + +#include "Tokenizer.h" + +#include "DiagnosticsBase.h" +#include "Token.h" + +#if defined(__GNUC__) +// Triggered by the auto-generated yy_fatal_error function. +#pragma GCC diagnostic ignored "-Wmissing-noreturn" +#elif defined(_MSC_VER) +#pragma warning(disable: 4244) +#endif + +// Workaround for flex using the register keyword, deprecated in C++11. +#ifdef __cplusplus +#if __cplusplus > 199711L +#define register +#endif +#endif + +typedef std::string YYSTYPE; +typedef pp::SourceLocation YYLTYPE; + +// Use the unused yycolumn variable to track file (string) number. +#define yyfileno yycolumn + +#define YY_USER_INIT \ + do { \ + yyfileno = 0; \ + yylineno = 1; \ + yyextra->leadingSpace = false; \ + yyextra->lineStart = true; \ + } while(0); + +#define YY_USER_ACTION \ + do \ + { \ + pp::Input* input = &yyextra->input; \ + pp::Input::Location* scanLoc = &yyextra->scanLoc; \ + while ((scanLoc->sIndex < input->count()) && \ + (scanLoc->cIndex >= input->length(scanLoc->sIndex))) \ + { \ + scanLoc->cIndex -= input->length(scanLoc->sIndex++); \ + ++yyfileno; yylineno = 1; \ + } \ + yylloc->file = yyfileno; \ + yylloc->line = yylineno; \ + scanLoc->cIndex += yyleng; \ + } while(0); + +#define YY_INPUT(buf, result, maxSize) \ + result = yyextra->input.read(buf, maxSize, &yylineno); + +#define INITIAL 0 +#define COMMENT 1 + +#define YY_EXTRA_TYPE pp::Tokenizer::Context* + +/* Holds the entire state of the reentrant scanner. */ +struct yyguts_t + { + + /* User-defined. Not touched by flex. */ + YY_EXTRA_TYPE yyextra_r; + + /* The rest are the same as the globals declared in the non-reentrant scanner. */ + FILE *yyin_r, *yyout_r; + size_t yy_buffer_stack_top; /**< index of top of stack. */ + size_t yy_buffer_stack_max; /**< capacity of stack. */ + YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */ + char yy_hold_char; + yy_size_t yy_n_chars; + yy_size_t yyleng_r; + char *yy_c_buf_p; + int yy_init; + int yy_start; + int yy_did_buffer_switch_on_eof; + int yy_start_stack_ptr; + int yy_start_stack_depth; + int *yy_start_stack; + yy_state_type yy_last_accepting_state; + char* yy_last_accepting_cpos; + + int yylineno_r; + int yy_flex_debug_r; + + char *yytext_r; + int yy_more_flag; + int yy_more_len; + + YYSTYPE * yylval_r; + + YYLTYPE * yylloc_r; + + }; /* end struct yyguts_t */ + +static int yy_init_globals (yyscan_t yyscanner ); + + /* This must go here because YYSTYPE and YYLTYPE are included + * from bison output in section 1.*/ + # define yylval yyg->yylval_r + + # define yylloc yyg->yylloc_r + +int pplex_init (yyscan_t* scanner); + +int pplex_init_extra (YY_EXTRA_TYPE user_defined,yyscan_t* scanner); + +/* Accessor methods to globals. + These are made visible to non-reentrant scanners for convenience. */ + +int pplex_destroy (yyscan_t yyscanner ); + +int ppget_debug (yyscan_t yyscanner ); + +void ppset_debug (int debug_flag ,yyscan_t yyscanner ); + +YY_EXTRA_TYPE ppget_extra (yyscan_t yyscanner ); + +void ppset_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscanner ); + +FILE *ppget_in (yyscan_t yyscanner ); + +void ppset_in (FILE * in_str ,yyscan_t yyscanner ); + +FILE *ppget_out (yyscan_t yyscanner ); + +void ppset_out (FILE * out_str ,yyscan_t yyscanner ); + +yy_size_t ppget_leng (yyscan_t yyscanner ); + +char *ppget_text (yyscan_t yyscanner ); + +int ppget_lineno (yyscan_t yyscanner ); + +void ppset_lineno (int line_number ,yyscan_t yyscanner ); + +int ppget_column (yyscan_t yyscanner ); + +void ppset_column (int column_no ,yyscan_t yyscanner ); + +YYSTYPE * ppget_lval (yyscan_t yyscanner ); + +void ppset_lval (YYSTYPE * yylval_param ,yyscan_t yyscanner ); + + YYLTYPE *ppget_lloc (yyscan_t yyscanner ); + + void ppset_lloc (YYLTYPE * yylloc_param ,yyscan_t yyscanner ); + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int ppwrap (yyscan_t yyscanner ); +#else +extern int ppwrap (yyscan_t yyscanner ); +#endif +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy (char *,yyconst char *,int ,yyscan_t yyscanner); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner); +#endif + +#ifndef YY_NO_INPUT + +#ifdef __cplusplus +static int yyinput (yyscan_t yyscanner ); +#else +static int input (yyscan_t yyscanner ); +#endif + +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#define YY_READ_BUF_SIZE 8192 +#endif + +/* Copy whatever the last rule matched to the standard output. */ +#ifndef ECHO +/* This used to be an fputs(), but since the string might contain NUL's, + * we now use fwrite(). + */ +#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0) +#endif + +/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, + * is returned in "result". + */ +#ifndef YY_INPUT +#define YY_INPUT(buf,result,max_size) \ + if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ + { \ + int c = '*'; \ + size_t n; \ + for ( n = 0; n < max_size && \ + (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ + buf[n] = (char) c; \ + if ( c == '\n' ) \ + buf[n++] = (char) c; \ + if ( c == EOF && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + result = n; \ + } \ + else \ + { \ + errno=0; \ + while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ + { \ + if( errno != EINTR) \ + { \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + break; \ + } \ + errno=0; \ + clearerr(yyin); \ + } \ + }\ +\ + +#endif + +/* No semi-colon after return; correct usage is to write "yyterminate();" - + * we don't want an extra ';' after the "return" because that will cause + * some compilers to complain about unreachable statements. + */ +#ifndef yyterminate +#define yyterminate() return YY_NULL +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Report a fatal error. */ +#ifndef YY_FATAL_ERROR +#define YY_FATAL_ERROR(msg) yy_fatal_error( msg , yyscanner) +#endif + +/* end tables serialization structures and prototypes */ + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL_IS_OURS 1 + +extern int pplex \ + (YYSTYPE * yylval_param,YYLTYPE * yylloc_param ,yyscan_t yyscanner); + +#define YY_DECL int pplex \ + (YYSTYPE * yylval_param, YYLTYPE * yylloc_param , yyscan_t yyscanner) +#endif /* !YY_DECL */ + +/* Code executed at the beginning of each rule, after yytext and yyleng + * have been set up. + */ +#ifndef YY_USER_ACTION +#define YY_USER_ACTION +#endif + +/* Code executed at the end of each rule. */ +#ifndef YY_BREAK +#define YY_BREAK break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +/** The main scanner function which does all the work. + */ +YY_DECL +{ + register yy_state_type yy_current_state; + register char *yy_cp, *yy_bp; + register int yy_act; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + yylval = yylval_param; + + yylloc = yylloc_param; + + if ( !yyg->yy_init ) + { + yyg->yy_init = 1; + +#ifdef YY_USER_INIT + YY_USER_INIT; +#endif + + if ( ! yyg->yy_start ) + yyg->yy_start = 1; /* first start state */ + + if ( ! yyin ) + yyin = stdin; + + if ( ! yyout ) + yyout = stdout; + + if ( ! YY_CURRENT_BUFFER ) { + ppensure_buffer_stack (yyscanner); + YY_CURRENT_BUFFER_LVALUE = + pp_create_buffer(yyin,YY_BUF_SIZE ,yyscanner); + } + + pp_load_buffer_state(yyscanner ); + } + + { + + /* Line comment */ + + while ( 1 ) /* loops until end-of-file is reached */ + { + yy_cp = yyg->yy_c_buf_p; + + /* Support of yytext. */ + *yy_cp = yyg->yy_hold_char; + + /* yy_bp points to the position in yy_ch_buf of the start of + * the current run. + */ + yy_bp = yy_cp; + + yy_current_state = yyg->yy_start; +yy_match: + do + { + register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ; + if ( yy_accept[yy_current_state] ) + { + yyg->yy_last_accepting_state = yy_current_state; + yyg->yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 98 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + ++yy_cp; + } + while ( yy_current_state != 97 ); + yy_cp = yyg->yy_last_accepting_cpos; + yy_current_state = yyg->yy_last_accepting_state; + +yy_find_action: + yy_act = yy_accept[yy_current_state]; + + YY_DO_BEFORE_ACTION; + +do_action: /* This label is used only to access EOF actions. */ + + switch ( yy_act ) + { /* beginning of action switch */ + case 0: /* must back up */ + /* undo the effects of YY_DO_BEFORE_ACTION */ + *yy_cp = yyg->yy_hold_char; + yy_cp = yyg->yy_last_accepting_cpos; + yy_current_state = yyg->yy_last_accepting_state; + goto yy_find_action; + +case 1: +YY_RULE_SETUP + + YY_BREAK +/* Block comment */ +/* Line breaks are just counted - not returned. */ +/* The comment is replaced by a single space. */ +case 2: +YY_RULE_SETUP +{ BEGIN(COMMENT); } + YY_BREAK +case 3: +YY_RULE_SETUP + + YY_BREAK +case 4: +YY_RULE_SETUP + + YY_BREAK +case 5: +/* rule 5 can match eol */ +YY_RULE_SETUP +{ ++yylineno; } + YY_BREAK +case 6: +YY_RULE_SETUP +{ + yyextra->leadingSpace = true; + BEGIN(INITIAL); +} + YY_BREAK +case 7: +YY_RULE_SETUP +{ + // # is only valid at start of line for preprocessor directives. + yylval->assign(1, yytext[0]); + return yyextra->lineStart ? pp::Token::PP_HASH : pp::Token::PP_OTHER; +} + YY_BREAK +case 8: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::IDENTIFIER; +} + YY_BREAK +case 9: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::CONST_INT; +} + YY_BREAK +case 10: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::CONST_FLOAT; +} + YY_BREAK +/* Anything that starts with a {DIGIT} or .{DIGIT} must be a number. */ +/* Rule to catch all invalid integers and floats. */ +case 11: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::PP_NUMBER; +} + YY_BREAK +case 12: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_INC; +} + YY_BREAK +case 13: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_DEC; +} + YY_BREAK +case 14: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_LEFT; +} + YY_BREAK +case 15: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_RIGHT; +} + YY_BREAK +case 16: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_LE; +} + YY_BREAK +case 17: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_GE; +} + YY_BREAK +case 18: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_EQ; +} + YY_BREAK +case 19: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_NE; +} + YY_BREAK +case 20: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_AND; +} + YY_BREAK +case 21: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_XOR; +} + YY_BREAK +case 22: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_OR; +} + YY_BREAK +case 23: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_ADD_ASSIGN; +} + YY_BREAK +case 24: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_SUB_ASSIGN; +} + YY_BREAK +case 25: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_MUL_ASSIGN; +} + YY_BREAK +case 26: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_DIV_ASSIGN; +} + YY_BREAK +case 27: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_MOD_ASSIGN; +} + YY_BREAK +case 28: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_LEFT_ASSIGN; +} + YY_BREAK +case 29: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_RIGHT_ASSIGN; +} + YY_BREAK +case 30: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_AND_ASSIGN; +} + YY_BREAK +case 31: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_XOR_ASSIGN; +} + YY_BREAK +case 32: +YY_RULE_SETUP +{ + yylval->assign(yytext, yyleng); + return pp::Token::OP_OR_ASSIGN; +} + YY_BREAK +case 33: +YY_RULE_SETUP +{ + yylval->assign(1, yytext[0]); + return yytext[0]; +} + YY_BREAK +case 34: +YY_RULE_SETUP +{ yyextra->leadingSpace = true; } + YY_BREAK +case 35: +/* rule 35 can match eol */ +YY_RULE_SETUP +{ + ++yylineno; + yylval->assign(1, '\n'); + return '\n'; +} + YY_BREAK +case 36: +/* rule 36 can match eol */ +YY_RULE_SETUP +{ ++yylineno; } + YY_BREAK +case 37: +YY_RULE_SETUP +{ + yylval->assign(1, yytext[0]); + return pp::Token::PP_OTHER; +} + YY_BREAK +case YY_STATE_EOF(INITIAL): +case YY_STATE_EOF(COMMENT): +{ + // YY_USER_ACTION is not invoked for handling EOF. + // Set the location for EOF token manually. + pp::Input* input = &yyextra->input; + pp::Input::Location* scanLoc = &yyextra->scanLoc; + yy_size_t sIndexMax = input->count() ? input->count() - 1 : 0; + if (scanLoc->sIndex != sIndexMax) + { + // We can only reach here if there are empty strings at the + // end of the input. + scanLoc->sIndex = sIndexMax; scanLoc->cIndex = 0; + // FIXME: this is not 64-bit clean. + yyfileno = static_cast<int>(sIndexMax); yylineno = 1; + } + yylloc->file = yyfileno; + yylloc->line = yylineno; + yylval->clear(); + + if (YY_START == COMMENT) + { + yyextra->diagnostics->report(pp::Diagnostics::PP_EOF_IN_COMMENT, + pp::SourceLocation(yyfileno, yylineno), + ""); + } + yyterminate(); +} + YY_BREAK +case 38: +YY_RULE_SETUP +ECHO; + YY_BREAK + + case YY_END_OF_BUFFER: + { + /* Amount of text matched not including the EOB char. */ + int yy_amount_of_matched_text = (int) (yy_cp - yyg->yytext_ptr) - 1; + + /* Undo the effects of YY_DO_BEFORE_ACTION. */ + *yy_cp = yyg->yy_hold_char; + YY_RESTORE_YY_MORE_OFFSET + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) + { + /* We're scanning a new file or input source. It's + * possible that this happened because the user + * just pointed yyin at a new source and called + * pplex(). If so, then we have to assure + * consistency between YY_CURRENT_BUFFER and our + * globals. Here is the right place to do so, because + * this is the first action (other than possibly a + * back-up) that will match for the new input source. + */ + yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; + } + + /* Note that here we test for yy_c_buf_p "<=" to the position + * of the first EOB in the buffer, since yy_c_buf_p will + * already have been incremented past the NUL character + * (since all states make transitions on EOB to the + * end-of-buffer state). Contrast this with the test + * in input(). + */ + if ( yyg->yy_c_buf_p <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] ) + { /* This was really a NUL. */ + yy_state_type yy_next_state; + + yyg->yy_c_buf_p = yyg->yytext_ptr + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( yyscanner ); + + /* Okay, we're now positioned to make the NUL + * transition. We couldn't have + * yy_get_previous_state() go ahead and do it + * for us because it doesn't know how to deal + * with the possibility of jamming (and we don't + * want to build jamming into it because then it + * will run more slowly). + */ + + yy_next_state = yy_try_NUL_trans( yy_current_state , yyscanner); + + yy_bp = yyg->yytext_ptr + YY_MORE_ADJ; + + if ( yy_next_state ) + { + /* Consume the NUL. */ + yy_cp = ++yyg->yy_c_buf_p; + yy_current_state = yy_next_state; + goto yy_match; + } + + else + { + yy_cp = yyg->yy_last_accepting_cpos; + yy_current_state = yyg->yy_last_accepting_state; + goto yy_find_action; + } + } + + else switch ( yy_get_next_buffer( yyscanner ) ) + { + case EOB_ACT_END_OF_FILE: + { + yyg->yy_did_buffer_switch_on_eof = 0; + + if ( ppwrap(yyscanner ) ) + { + /* Note: because we've taken care in + * yy_get_next_buffer() to have set up + * yytext, we can now set up + * yy_c_buf_p so that if some total + * hoser (like flex itself) wants to + * call the scanner after we return the + * YY_NULL, it'll still work - another + * YY_NULL will get returned. + */ + yyg->yy_c_buf_p = yyg->yytext_ptr + YY_MORE_ADJ; + + yy_act = YY_STATE_EOF(YY_START); + goto do_action; + } + + else + { + if ( ! yyg->yy_did_buffer_switch_on_eof ) + YY_NEW_FILE; + } + break; + } + + case EOB_ACT_CONTINUE_SCAN: + yyg->yy_c_buf_p = + yyg->yytext_ptr + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( yyscanner ); + + yy_cp = yyg->yy_c_buf_p; + yy_bp = yyg->yytext_ptr + YY_MORE_ADJ; + goto yy_match; + + case EOB_ACT_LAST_MATCH: + yyg->yy_c_buf_p = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars]; + + yy_current_state = yy_get_previous_state( yyscanner ); + + yy_cp = yyg->yy_c_buf_p; + yy_bp = yyg->yytext_ptr + YY_MORE_ADJ; + goto yy_find_action; + } + break; + } + + default: + YY_FATAL_ERROR( + "fatal flex scanner internal error--no action found" ); + } /* end of action switch */ + } /* end of scanning one token */ + } /* end of user's declarations */ +} /* end of pplex */ + +/* yy_get_next_buffer - try to read in a new buffer + * + * Returns a code representing an action: + * EOB_ACT_LAST_MATCH - + * EOB_ACT_CONTINUE_SCAN - continue scanning from current position + * EOB_ACT_END_OF_FILE - end of file + */ +static int yy_get_next_buffer (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; + register char *source = yyg->yytext_ptr; + register int number_to_move, i; + int ret_val; + + if ( yyg->yy_c_buf_p > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] ) + YY_FATAL_ERROR( + "fatal flex scanner internal error--end of buffer missed" ); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) + { /* Don't try to fill the buffer, so this is an EOF. */ + if ( yyg->yy_c_buf_p - yyg->yytext_ptr - YY_MORE_ADJ == 1 ) + { + /* We matched a single character, the EOB, so + * treat this as a final EOF. + */ + return EOB_ACT_END_OF_FILE; + } + + else + { + /* We matched some text prior to the EOB, first + * process it. + */ + return EOB_ACT_LAST_MATCH; + } + } + + /* Try to read more data. */ + + /* First move last chars to start of buffer. */ + number_to_move = (int) (yyg->yy_c_buf_p - yyg->yytext_ptr) - 1; + + for ( i = 0; i < number_to_move; ++i ) + *(dest++) = *(source++); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) + /* don't do the read, it's not guaranteed to return an EOF, + * just force an EOF + */ + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars = 0; + + else + { + yy_size_t num_to_read = + YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; + + while ( num_to_read <= 0 ) + { /* Not enough room in the buffer - grow it. */ + + /* just a shorter name for the current buffer */ + YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; + + int yy_c_buf_p_offset = + (int) (yyg->yy_c_buf_p - b->yy_ch_buf); + + if ( b->yy_is_our_buffer ) + { + yy_size_t new_size = b->yy_buf_size * 2; + + if ( new_size <= 0 ) + b->yy_buf_size += b->yy_buf_size / 8; + else + b->yy_buf_size *= 2; + + b->yy_ch_buf = (char *) + /* Include room in for 2 EOB chars. */ + pprealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ,yyscanner ); + } + else + /* Can't grow it, we don't own it. */ + b->yy_ch_buf = 0; + + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( + "fatal error - scanner input buffer overflow" ); + + yyg->yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset]; + + num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - + number_to_move - 1; + + } + + if ( num_to_read > YY_READ_BUF_SIZE ) + num_to_read = YY_READ_BUF_SIZE; + + /* Read in more data. */ + YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), + yyg->yy_n_chars, num_to_read ); + + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; + } + + if ( yyg->yy_n_chars == 0 ) + { + if ( number_to_move == YY_MORE_ADJ ) + { + ret_val = EOB_ACT_END_OF_FILE; + pprestart(yyin ,yyscanner); + } + + else + { + ret_val = EOB_ACT_LAST_MATCH; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = + YY_BUFFER_EOF_PENDING; + } + } + + else + ret_val = EOB_ACT_CONTINUE_SCAN; + + if ((yy_size_t) (yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { + /* Extend the array by 50%, plus the number we really need. */ + yy_size_t new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1); + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) pprealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ,yyscanner ); + if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); + } + + yyg->yy_n_chars += number_to_move; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] = YY_END_OF_BUFFER_CHAR; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR; + + yyg->yytext_ptr = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; + + return ret_val; +} + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + + static yy_state_type yy_get_previous_state (yyscan_t yyscanner) +{ + register yy_state_type yy_current_state; + register char *yy_cp; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + yy_current_state = yyg->yy_start; + + for ( yy_cp = yyg->yytext_ptr + YY_MORE_ADJ; yy_cp < yyg->yy_c_buf_p; ++yy_cp ) + { + register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); + if ( yy_accept[yy_current_state] ) + { + yyg->yy_last_accepting_state = yy_current_state; + yyg->yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 98 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + } + + return yy_current_state; +} + +/* yy_try_NUL_trans - try to make a transition on the NUL character + * + * synopsis + * next_state = yy_try_NUL_trans( current_state ); + */ + static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state , yyscan_t yyscanner) +{ + register int yy_is_jam; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* This var may be unused depending upon options. */ + register char *yy_cp = yyg->yy_c_buf_p; + + register YY_CHAR yy_c = 1; + if ( yy_accept[yy_current_state] ) + { + yyg->yy_last_accepting_state = yy_current_state; + yyg->yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 98 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + yy_is_jam = (yy_current_state == 97); + + (void)yyg; + return yy_is_jam ? 0 : yy_current_state; +} + +#ifndef YY_NO_INPUT +#ifdef __cplusplus + static int yyinput (yyscan_t yyscanner) +#else + static int input (yyscan_t yyscanner) +#endif + +{ + int c; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + *yyg->yy_c_buf_p = yyg->yy_hold_char; + + if ( *yyg->yy_c_buf_p == YY_END_OF_BUFFER_CHAR ) + { + /* yy_c_buf_p now points to the character we want to return. + * If this occurs *before* the EOB characters, then it's a + * valid NUL; if not, then we've hit the end of the buffer. + */ + if ( yyg->yy_c_buf_p < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] ) + /* This was really a NUL. */ + *yyg->yy_c_buf_p = '\0'; + + else + { /* need more input */ + yy_size_t offset = yyg->yy_c_buf_p - yyg->yytext_ptr; + ++yyg->yy_c_buf_p; + + switch ( yy_get_next_buffer( yyscanner ) ) + { + case EOB_ACT_LAST_MATCH: + /* This happens because yy_g_n_b() + * sees that we've accumulated a + * token and flags that we need to + * try matching the token before + * proceeding. But for input(), + * there's no matching to consider. + * So convert the EOB_ACT_LAST_MATCH + * to EOB_ACT_END_OF_FILE. + */ + + /* Reset buffer status. */ + pprestart(yyin ,yyscanner); + + /*FALLTHROUGH*/ + + case EOB_ACT_END_OF_FILE: + { + if ( ppwrap(yyscanner ) ) + return EOF; + + if ( ! yyg->yy_did_buffer_switch_on_eof ) + YY_NEW_FILE; +#ifdef __cplusplus + return yyinput(yyscanner); +#else + return input(yyscanner); +#endif + } + + case EOB_ACT_CONTINUE_SCAN: + yyg->yy_c_buf_p = yyg->yytext_ptr + offset; + break; + } + } + } + + c = *(unsigned char *) yyg->yy_c_buf_p; /* cast for 8-bit char's */ + *yyg->yy_c_buf_p = '\0'; /* preserve yytext */ + yyg->yy_hold_char = *++yyg->yy_c_buf_p; + + return c; +} +#endif /* ifndef YY_NO_INPUT */ + +/** Immediately switch to a different input stream. + * @param input_file A readable stream. + * @param yyscanner The scanner object. + * @note This function does not reset the start condition to @c INITIAL . + */ + void pprestart (FILE * input_file , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if ( ! YY_CURRENT_BUFFER ){ + ppensure_buffer_stack (yyscanner); + YY_CURRENT_BUFFER_LVALUE = + pp_create_buffer(yyin,YY_BUF_SIZE ,yyscanner); + } + + pp_init_buffer(YY_CURRENT_BUFFER,input_file ,yyscanner); + pp_load_buffer_state(yyscanner ); +} + +/** Switch to a different input buffer. + * @param new_buffer The new input buffer. + * @param yyscanner The scanner object. + */ + void pp_switch_to_buffer (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* TODO. We should be able to replace this entire function body + * with + * pppop_buffer_state(); + * pppush_buffer_state(new_buffer); + */ + ppensure_buffer_stack (yyscanner); + if ( YY_CURRENT_BUFFER == new_buffer ) + return; + + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *yyg->yy_c_buf_p = yyg->yy_hold_char; + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p; + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; + } + + YY_CURRENT_BUFFER_LVALUE = new_buffer; + pp_load_buffer_state(yyscanner ); + + /* We don't actually know whether we did this switch during + * EOF (ppwrap()) processing, but the only time this flag + * is looked at is after ppwrap() is called, so it's safe + * to go ahead and always set it. + */ + yyg->yy_did_buffer_switch_on_eof = 1; +} + +static void pp_load_buffer_state (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + yyg->yytext_ptr = yyg->yy_c_buf_p = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; + yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; + yyg->yy_hold_char = *yyg->yy_c_buf_p; +} + +/** Allocate and initialize an input buffer state. + * @param file A readable stream. + * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. + * @param yyscanner The scanner object. + * @return the allocated buffer state. + */ + YY_BUFFER_STATE pp_create_buffer (FILE * file, int size , yyscan_t yyscanner) +{ + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) ppalloc(sizeof( struct yy_buffer_state ) ,yyscanner ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in pp_create_buffer()" ); + + b->yy_buf_size = size; + + /* yy_ch_buf has to be 2 characters longer than the size given because + * we need to put in 2 end-of-buffer characters. + */ + b->yy_ch_buf = (char *) ppalloc(b->yy_buf_size + 2 ,yyscanner ); + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in pp_create_buffer()" ); + + b->yy_is_our_buffer = 1; + + pp_init_buffer(b,file ,yyscanner); + + return b; +} + +/** Destroy the buffer. + * @param b a buffer created with pp_create_buffer() + * @param yyscanner The scanner object. + */ + void pp_delete_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if ( ! b ) + return; + + if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ + YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; + + if ( b->yy_is_our_buffer ) + ppfree((void *) b->yy_ch_buf ,yyscanner ); + + ppfree((void *) b ,yyscanner ); +} + +/* Initializes or reinitializes a buffer. + * This function is sometimes called more than once on the same buffer, + * such as during a pprestart() or at EOF. + */ + static void pp_init_buffer (YY_BUFFER_STATE b, FILE * file , yyscan_t yyscanner) + +{ + int oerrno = errno; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + pp_flush_buffer(b ,yyscanner); + + b->yy_input_file = file; + b->yy_fill_buffer = 1; + + /* If b is the current buffer, then pp_init_buffer was _probably_ + * called from pprestart() or through yy_get_next_buffer. + * In that case, we don't want to reset the lineno or column. + */ + if (b != YY_CURRENT_BUFFER){ + b->yy_bs_lineno = 1; + b->yy_bs_column = 0; + } + + b->yy_is_interactive = 0; + + errno = oerrno; +} + +/** Discard all buffered characters. On the next scan, YY_INPUT will be called. + * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. + * @param yyscanner The scanner object. + */ + void pp_flush_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + if ( ! b ) + return; + + b->yy_n_chars = 0; + + /* We always need two end-of-buffer characters. The first causes + * a transition to the end-of-buffer state. The second causes + * a jam in that state. + */ + b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; + b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; + + b->yy_buf_pos = &b->yy_ch_buf[0]; + + b->yy_at_bol = 1; + b->yy_buffer_status = YY_BUFFER_NEW; + + if ( b == YY_CURRENT_BUFFER ) + pp_load_buffer_state(yyscanner ); +} + +/** Pushes the new state onto the stack. The new state becomes + * the current state. This function will allocate the stack + * if necessary. + * @param new_buffer The new state. + * @param yyscanner The scanner object. + */ +void pppush_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + if (new_buffer == NULL) + return; + + ppensure_buffer_stack(yyscanner); + + /* This block is copied from pp_switch_to_buffer. */ + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *yyg->yy_c_buf_p = yyg->yy_hold_char; + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p; + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; + } + + /* Only push if top exists. Otherwise, replace top. */ + if (YY_CURRENT_BUFFER) + yyg->yy_buffer_stack_top++; + YY_CURRENT_BUFFER_LVALUE = new_buffer; + + /* copied from pp_switch_to_buffer. */ + pp_load_buffer_state(yyscanner ); + yyg->yy_did_buffer_switch_on_eof = 1; +} + +/** Removes and deletes the top of the stack, if present. + * The next element becomes the new top. + * @param yyscanner The scanner object. + */ +void pppop_buffer_state (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + if (!YY_CURRENT_BUFFER) + return; + + pp_delete_buffer(YY_CURRENT_BUFFER ,yyscanner); + YY_CURRENT_BUFFER_LVALUE = NULL; + if (yyg->yy_buffer_stack_top > 0) + --yyg->yy_buffer_stack_top; + + if (YY_CURRENT_BUFFER) { + pp_load_buffer_state(yyscanner ); + yyg->yy_did_buffer_switch_on_eof = 1; + } +} + +/* Allocates the stack if it does not exist. + * Guarantees space for at least one push. + */ +static void ppensure_buffer_stack (yyscan_t yyscanner) +{ + yy_size_t num_to_alloc; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if (!yyg->yy_buffer_stack) { + + /* First allocation is just for 2 elements, since we don't know if this + * scanner will even need a stack. We use 2 instead of 1 to avoid an + * immediate realloc on the next call. + */ + num_to_alloc = 1; + yyg->yy_buffer_stack = (struct yy_buffer_state**)ppalloc + (num_to_alloc * sizeof(struct yy_buffer_state*) + , yyscanner); + if ( ! yyg->yy_buffer_stack ) + YY_FATAL_ERROR( "out of dynamic memory in ppensure_buffer_stack()" ); + + memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*)); + + yyg->yy_buffer_stack_max = num_to_alloc; + yyg->yy_buffer_stack_top = 0; + return; + } + + if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){ + + /* Increase the buffer to prepare for a possible push. */ + int grow_size = 8 /* arbitrary grow size */; + + num_to_alloc = yyg->yy_buffer_stack_max + grow_size; + yyg->yy_buffer_stack = (struct yy_buffer_state**)pprealloc + (yyg->yy_buffer_stack, + num_to_alloc * sizeof(struct yy_buffer_state*) + , yyscanner); + if ( ! yyg->yy_buffer_stack ) + YY_FATAL_ERROR( "out of dynamic memory in ppensure_buffer_stack()" ); + + /* zero only the new slots.*/ + memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*)); + yyg->yy_buffer_stack_max = num_to_alloc; + } +} + +/** Setup the input buffer state to scan directly from a user-specified character buffer. + * @param base the character buffer + * @param size the size in bytes of the character buffer + * @param yyscanner The scanner object. + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE pp_scan_buffer (char * base, yy_size_t size , yyscan_t yyscanner) +{ + YY_BUFFER_STATE b; + + if ( size < 2 || + base[size-2] != YY_END_OF_BUFFER_CHAR || + base[size-1] != YY_END_OF_BUFFER_CHAR ) + /* They forgot to leave room for the EOB's. */ + return 0; + + b = (YY_BUFFER_STATE) ppalloc(sizeof( struct yy_buffer_state ) ,yyscanner ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in pp_scan_buffer()" ); + + b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ + b->yy_buf_pos = b->yy_ch_buf = base; + b->yy_is_our_buffer = 0; + b->yy_input_file = 0; + b->yy_n_chars = b->yy_buf_size; + b->yy_is_interactive = 0; + b->yy_at_bol = 1; + b->yy_fill_buffer = 0; + b->yy_buffer_status = YY_BUFFER_NEW; + + pp_switch_to_buffer(b ,yyscanner ); + + return b; +} + +/** Setup the input buffer state to scan a string. The next call to pplex() will + * scan from a @e copy of @a str. + * @param yystr a NUL-terminated string to scan + * @param yyscanner The scanner object. + * @return the newly allocated buffer state object. + * @note If you want to scan bytes that may contain NUL values, then use + * pp_scan_bytes() instead. + */ +YY_BUFFER_STATE pp_scan_string (yyconst char * yystr , yyscan_t yyscanner) +{ + + return pp_scan_bytes(yystr,strlen(yystr) ,yyscanner); +} + +/** Setup the input buffer state to scan the given bytes. The next call to pplex() will + * scan from a @e copy of @a bytes. + * @param yybytes the byte buffer to scan + * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. + * @param yyscanner The scanner object. + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE pp_scan_bytes (yyconst char * yybytes, yy_size_t _yybytes_len , yyscan_t yyscanner) +{ + YY_BUFFER_STATE b; + char *buf; + yy_size_t n; + yy_size_t i; + + /* Get memory for full buffer, including space for trailing EOB's. */ + n = _yybytes_len + 2; + buf = (char *) ppalloc(n ,yyscanner ); + if ( ! buf ) + YY_FATAL_ERROR( "out of dynamic memory in pp_scan_bytes()" ); + + for ( i = 0; i < _yybytes_len; ++i ) + buf[i] = yybytes[i]; + + buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; + + b = pp_scan_buffer(buf,n ,yyscanner); + if ( ! b ) + YY_FATAL_ERROR( "bad buffer in pp_scan_bytes()" ); + + /* It's okay to grow etc. this buffer, and we should throw it + * away when we're done. + */ + b->yy_is_our_buffer = 1; + + return b; +} + +#ifndef YY_EXIT_FAILURE +#define YY_EXIT_FAILURE 2 +#endif + +static void yy_fatal_error (yyconst char* msg , yyscan_t yyscanner) +{ + (void) fprintf( stderr, "%s\n", msg ); + exit( YY_EXIT_FAILURE ); +} + +/* Redefine yyless() so it works in section 3 code. */ + +#undef yyless +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + yytext[yyleng] = yyg->yy_hold_char; \ + yyg->yy_c_buf_p = yytext + yyless_macro_arg; \ + yyg->yy_hold_char = *yyg->yy_c_buf_p; \ + *yyg->yy_c_buf_p = '\0'; \ + yyleng = yyless_macro_arg; \ + } \ + while ( 0 ) + +/* Accessor methods (get/set functions) to struct members. */ + +/** Get the user-defined data for this scanner. + * @param yyscanner The scanner object. + */ +YY_EXTRA_TYPE ppget_extra (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyextra; +} + +/** Get the current line number. + * @param yyscanner The scanner object. + */ +int ppget_lineno (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if (! YY_CURRENT_BUFFER) + return 0; + + return yylineno; +} + +/** Get the current column number. + * @param yyscanner The scanner object. + */ +int ppget_column (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if (! YY_CURRENT_BUFFER) + return 0; + + return yycolumn; +} + +/** Get the input stream. + * @param yyscanner The scanner object. + */ +FILE *ppget_in (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyin; +} + +/** Get the output stream. + * @param yyscanner The scanner object. + */ +FILE *ppget_out (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyout; +} + +/** Get the length of the current token. + * @param yyscanner The scanner object. + */ +yy_size_t ppget_leng (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyleng; +} + +/** Get the current token. + * @param yyscanner The scanner object. + */ + +char *ppget_text (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yytext; +} + +/** Set the user-defined data. This data is never touched by the scanner. + * @param user_defined The data to be associated with this scanner. + * @param yyscanner The scanner object. + */ +void ppset_extra (YY_EXTRA_TYPE user_defined , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyextra = user_defined ; +} + +/** Set the current line number. + * @param line_number + * @param yyscanner The scanner object. + */ +void ppset_lineno (int line_number , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* lineno is only valid if an input buffer exists. */ + if (! YY_CURRENT_BUFFER ) + YY_FATAL_ERROR( "ppset_lineno called with no buffer" ); + + yylineno = line_number; +} + +/** Set the current column. + * @param line_number + * @param yyscanner The scanner object. + */ +void ppset_column (int column_no , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* column is only valid if an input buffer exists. */ + if (! YY_CURRENT_BUFFER ) + YY_FATAL_ERROR( "ppset_column called with no buffer" ); + + yycolumn = column_no; +} + +/** Set the input stream. This does not discard the current + * input buffer. + * @param in_str A readable stream. + * @param yyscanner The scanner object. + * @see pp_switch_to_buffer + */ +void ppset_in (FILE * in_str , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyin = in_str ; +} + +void ppset_out (FILE * out_str , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyout = out_str ; +} + +int ppget_debug (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yy_flex_debug; +} + +void ppset_debug (int bdebug , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yy_flex_debug = bdebug ; +} + +/* Accessor methods for yylval and yylloc */ + +YYSTYPE * ppget_lval (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yylval; +} + +void ppset_lval (YYSTYPE * yylval_param , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yylval = yylval_param; +} + +YYLTYPE *ppget_lloc (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yylloc; +} + +void ppset_lloc (YYLTYPE * yylloc_param , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yylloc = yylloc_param; +} + +/* User-visible API */ + +/* pplex_init is special because it creates the scanner itself, so it is + * the ONLY reentrant function that doesn't take the scanner as the last argument. + * That's why we explicitly handle the declaration, instead of using our macros. + */ + +int pplex_init(yyscan_t* ptr_yy_globals) + +{ + if (ptr_yy_globals == NULL){ + errno = EINVAL; + return 1; + } + + *ptr_yy_globals = (yyscan_t) ppalloc ( sizeof( struct yyguts_t ), NULL ); + + if (*ptr_yy_globals == NULL){ + errno = ENOMEM; + return 1; + } + + /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */ + memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t)); + + return yy_init_globals ( *ptr_yy_globals ); +} + +/* pplex_init_extra has the same functionality as pplex_init, but follows the + * convention of taking the scanner as the last argument. Note however, that + * this is a *pointer* to a scanner, as it will be allocated by this call (and + * is the reason, too, why this function also must handle its own declaration). + * The user defined value in the first argument will be available to ppalloc in + * the yyextra field. + */ + +int pplex_init_extra(YY_EXTRA_TYPE yy_user_defined,yyscan_t* ptr_yy_globals ) + +{ + struct yyguts_t dummy_yyguts; + + ppset_extra (yy_user_defined, &dummy_yyguts); + + if (ptr_yy_globals == NULL){ + errno = EINVAL; + return 1; + } + + *ptr_yy_globals = (yyscan_t) ppalloc ( sizeof( struct yyguts_t ), &dummy_yyguts ); + + if (*ptr_yy_globals == NULL){ + errno = ENOMEM; + return 1; + } + + /* By setting to 0xAA, we expose bugs in + yy_init_globals. Leave at 0x00 for releases. */ + memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t)); + + ppset_extra (yy_user_defined, *ptr_yy_globals); + + return yy_init_globals ( *ptr_yy_globals ); +} + +static int yy_init_globals (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + /* Initialization is the same as for the non-reentrant scanner. + * This function is called from pplex_destroy(), so don't allocate here. + */ + + yyg->yy_buffer_stack = 0; + yyg->yy_buffer_stack_top = 0; + yyg->yy_buffer_stack_max = 0; + yyg->yy_c_buf_p = (char *) 0; + yyg->yy_init = 0; + yyg->yy_start = 0; + + yyg->yy_start_stack_ptr = 0; + yyg->yy_start_stack_depth = 0; + yyg->yy_start_stack = NULL; + +/* Defined in main.c */ +#ifdef YY_STDINIT + yyin = stdin; + yyout = stdout; +#else + yyin = (FILE *) 0; + yyout = (FILE *) 0; +#endif + + /* For future reference: Set errno on error, since we are called by + * pplex_init() + */ + return 0; +} + +/* pplex_destroy is for both reentrant and non-reentrant scanners. */ +int pplex_destroy (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* Pop the buffer stack, destroying each element. */ + while(YY_CURRENT_BUFFER){ + pp_delete_buffer(YY_CURRENT_BUFFER ,yyscanner ); + YY_CURRENT_BUFFER_LVALUE = NULL; + pppop_buffer_state(yyscanner); + } + + /* Destroy the stack itself. */ + ppfree(yyg->yy_buffer_stack ,yyscanner); + yyg->yy_buffer_stack = NULL; + + /* Destroy the start condition stack. */ + ppfree(yyg->yy_start_stack ,yyscanner ); + yyg->yy_start_stack = NULL; + + /* Reset the globals. This is important in a non-reentrant scanner so the next time + * pplex() is called, initialization will occur. */ + yy_init_globals( yyscanner); + + /* Destroy the main struct (reentrant only). */ + ppfree ( yyscanner , yyscanner ); + yyscanner = NULL; + return 0; +} + +/* + * Internal utility routines. + */ + +#ifndef yytext_ptr +static void yy_flex_strncpy (char* s1, yyconst char * s2, int n , yyscan_t yyscanner) +{ + register int i; + for ( i = 0; i < n; ++i ) + s1[i] = s2[i]; +} +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner) +{ + register int n; + for ( n = 0; s[n]; ++n ) + ; + + return n; +} +#endif + +void *ppalloc (yy_size_t size , yyscan_t yyscanner) +{ + return (void *) malloc( size ); +} + +void *pprealloc (void * ptr, yy_size_t size , yyscan_t yyscanner) +{ + /* The cast to (char *) in the following accommodates both + * implementations that use char* generic pointers, and those + * that use void* generic pointers. It works with the latter + * because both ANSI C and C++ allow castless assignment from + * any pointer type to void*, and deal with argument conversions + * as though doing an assignment. + */ + return (void *) realloc( (char *) ptr, size ); +} + +void ppfree (void * ptr , yyscan_t yyscanner) +{ + free( (char *) ptr ); /* see pprealloc() for (char *) cast */ +} + +#define YYTABLES_NAME "yytables" + +namespace pp { + +Tokenizer::Tokenizer(Diagnostics *diagnostics) + : mHandle(0), + mMaxTokenSize(256) +{ + mContext.diagnostics = diagnostics; +} + +Tokenizer::~Tokenizer() +{ + destroyScanner(); +} + +bool Tokenizer::init(size_t count, const char * const string[], const int length[]) +{ + if ((count > 0) && (string == 0)) + return false; + + mContext.input = Input(count, string, length); + return initScanner(); +} + +void Tokenizer::setFileNumber(int file) +{ + // We use column number as file number. + // See macro yyfileno. + ppset_column(file,mHandle); +} + +void Tokenizer::setLineNumber(int line) +{ + ppset_lineno(line,mHandle); +} + +void Tokenizer::setMaxTokenSize(size_t maxTokenSize) +{ + mMaxTokenSize = maxTokenSize; +} + +void Tokenizer::lex(Token *token) +{ + token->type = pplex(&token->text,&token->location,mHandle); + if (token->text.size() > mMaxTokenSize) + { + mContext.diagnostics->report(Diagnostics::PP_TOKEN_TOO_LONG, + token->location, token->text); + token->text.erase(mMaxTokenSize); + } + + token->flags = 0; + + token->setAtStartOfLine(mContext.lineStart); + mContext.lineStart = token->type == '\n'; + + token->setHasLeadingSpace(mContext.leadingSpace); + mContext.leadingSpace = false; +} + +bool Tokenizer::initScanner() +{ + if ((mHandle == NULL) && pplex_init_extra(&mContext,&mHandle)) + return false; + + pprestart(0,mHandle); + return true; +} + +void Tokenizer::destroyScanner() +{ + if (mHandle == NULL) + return; + + pplex_destroy(mHandle); + mHandle = NULL; +} + +} // namespace pp + |