diff options
Diffstat (limited to 'src/bin/pgbench/exprscan.c')
| -rw-r--r-- | src/bin/pgbench/exprscan.c | 2835 |
1 files changed, 2835 insertions, 0 deletions
diff --git a/src/bin/pgbench/exprscan.c b/src/bin/pgbench/exprscan.c new file mode 100644 index 0000000..e839a8b --- /dev/null +++ b/src/bin/pgbench/exprscan.c @@ -0,0 +1,2835 @@ +#line 2 "exprscan.c" + +#line 4 "exprscan.c" + +#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 6 +#define YY_FLEX_SUBMINOR_VERSION 4 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +#ifdef yy_create_buffer +#define expr_yy_create_buffer_ALREADY_DEFINED +#else +#define yy_create_buffer expr_yy_create_buffer +#endif + +#ifdef yy_delete_buffer +#define expr_yy_delete_buffer_ALREADY_DEFINED +#else +#define yy_delete_buffer expr_yy_delete_buffer +#endif + +#ifdef yy_scan_buffer +#define expr_yy_scan_buffer_ALREADY_DEFINED +#else +#define yy_scan_buffer expr_yy_scan_buffer +#endif + +#ifdef yy_scan_string +#define expr_yy_scan_string_ALREADY_DEFINED +#else +#define yy_scan_string expr_yy_scan_string +#endif + +#ifdef yy_scan_bytes +#define expr_yy_scan_bytes_ALREADY_DEFINED +#else +#define yy_scan_bytes expr_yy_scan_bytes +#endif + +#ifdef yy_init_buffer +#define expr_yy_init_buffer_ALREADY_DEFINED +#else +#define yy_init_buffer expr_yy_init_buffer +#endif + +#ifdef yy_flush_buffer +#define expr_yy_flush_buffer_ALREADY_DEFINED +#else +#define yy_flush_buffer expr_yy_flush_buffer +#endif + +#ifdef yy_load_buffer_state +#define expr_yy_load_buffer_state_ALREADY_DEFINED +#else +#define yy_load_buffer_state expr_yy_load_buffer_state +#endif + +#ifdef yy_switch_to_buffer +#define expr_yy_switch_to_buffer_ALREADY_DEFINED +#else +#define yy_switch_to_buffer expr_yy_switch_to_buffer +#endif + +#ifdef yypush_buffer_state +#define expr_yypush_buffer_state_ALREADY_DEFINED +#else +#define yypush_buffer_state expr_yypush_buffer_state +#endif + +#ifdef yypop_buffer_state +#define expr_yypop_buffer_state_ALREADY_DEFINED +#else +#define yypop_buffer_state expr_yypop_buffer_state +#endif + +#ifdef yyensure_buffer_stack +#define expr_yyensure_buffer_stack_ALREADY_DEFINED +#else +#define yyensure_buffer_stack expr_yyensure_buffer_stack +#endif + +#ifdef yylex +#define expr_yylex_ALREADY_DEFINED +#else +#define yylex expr_yylex +#endif + +#ifdef yyrestart +#define expr_yyrestart_ALREADY_DEFINED +#else +#define yyrestart expr_yyrestart +#endif + +#ifdef yylex_init +#define expr_yylex_init_ALREADY_DEFINED +#else +#define yylex_init expr_yylex_init +#endif + +#ifdef yylex_init_extra +#define expr_yylex_init_extra_ALREADY_DEFINED +#else +#define yylex_init_extra expr_yylex_init_extra +#endif + +#ifdef yylex_destroy +#define expr_yylex_destroy_ALREADY_DEFINED +#else +#define yylex_destroy expr_yylex_destroy +#endif + +#ifdef yyget_debug +#define expr_yyget_debug_ALREADY_DEFINED +#else +#define yyget_debug expr_yyget_debug +#endif + +#ifdef yyset_debug +#define expr_yyset_debug_ALREADY_DEFINED +#else +#define yyset_debug expr_yyset_debug +#endif + +#ifdef yyget_extra +#define expr_yyget_extra_ALREADY_DEFINED +#else +#define yyget_extra expr_yyget_extra +#endif + +#ifdef yyset_extra +#define expr_yyset_extra_ALREADY_DEFINED +#else +#define yyset_extra expr_yyset_extra +#endif + +#ifdef yyget_in +#define expr_yyget_in_ALREADY_DEFINED +#else +#define yyget_in expr_yyget_in +#endif + +#ifdef yyset_in +#define expr_yyset_in_ALREADY_DEFINED +#else +#define yyset_in expr_yyset_in +#endif + +#ifdef yyget_out +#define expr_yyget_out_ALREADY_DEFINED +#else +#define yyget_out expr_yyget_out +#endif + +#ifdef yyset_out +#define expr_yyset_out_ALREADY_DEFINED +#else +#define yyset_out expr_yyset_out +#endif + +#ifdef yyget_leng +#define expr_yyget_leng_ALREADY_DEFINED +#else +#define yyget_leng expr_yyget_leng +#endif + +#ifdef yyget_text +#define expr_yyget_text_ALREADY_DEFINED +#else +#define yyget_text expr_yyget_text +#endif + +#ifdef yyget_lineno +#define expr_yyget_lineno_ALREADY_DEFINED +#else +#define yyget_lineno expr_yyget_lineno +#endif + +#ifdef yyset_lineno +#define expr_yyset_lineno_ALREADY_DEFINED +#else +#define yyset_lineno expr_yyset_lineno +#endif + +#ifdef yyget_column +#define expr_yyget_column_ALREADY_DEFINED +#else +#define yyget_column expr_yyget_column +#endif + +#ifdef yyset_column +#define expr_yyset_column_ALREADY_DEFINED +#else +#define yyset_column expr_yyset_column +#endif + +#ifdef yywrap +#define expr_yywrap_ALREADY_DEFINED +#else +#define yywrap expr_yywrap +#endif + +#ifdef yyget_lval +#define expr_yyget_lval_ALREADY_DEFINED +#else +#define yyget_lval expr_yyget_lval +#endif + +#ifdef yyset_lval +#define expr_yyset_lval_ALREADY_DEFINED +#else +#define yyset_lval expr_yyset_lval +#endif + +#ifdef yyalloc +#define expr_yyalloc_ALREADY_DEFINED +#else +#define yyalloc expr_yyalloc +#endif + +#ifdef yyrealloc +#define expr_yyrealloc_ALREADY_DEFINED +#else +#define yyrealloc expr_yyrealloc +#endif + +#ifdef yyfree +#define expr_yyfree_ALREADY_DEFINED +#else +#define yyfree expr_yyfree +#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; +#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 + +#ifndef SIZE_MAX +#define SIZE_MAX (~(size_t)0) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +/* begin standard C++ headers. */ + +/* TODO: this is always defined, so inline it */ +#define yyconst const + +#if defined(__GNUC__) && __GNUC__ >= 3 +#define yynoreturn __attribute__((__noreturn__)) +#else +#define yynoreturn +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an + * integer in range [0..255] for use as an array index. + */ +#define YY_SC_TO_UI(c) ((YY_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 yyrestart( yyin , yyscanner ) +#define YY_END_OF_BUFFER_CHAR 0 + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k. + * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case. + * Ditto for the __ia64__ case accordingly. + */ +#define YY_BUF_SIZE 32768 +#else +#define YY_BUF_SIZE 16384 +#endif /* __ia64__ */ +#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 + +#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. + */ + int yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + int 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 yyrestart()), 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 yyrestart ( FILE *input_file , yyscan_t yyscanner ); +void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner ); +YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size , yyscan_t yyscanner ); +void yy_delete_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner ); +void yy_flush_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner ); +void yypush_buffer_state ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner ); +void yypop_buffer_state ( yyscan_t yyscanner ); + +static void yyensure_buffer_stack ( yyscan_t yyscanner ); +static void yy_load_buffer_state ( yyscan_t yyscanner ); +static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file , yyscan_t yyscanner ); +#define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER , yyscanner) + +YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size , yyscan_t yyscanner ); +YY_BUFFER_STATE yy_scan_string ( const char *yy_str , yyscan_t yyscanner ); +YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len , yyscan_t yyscanner ); + +void *yyalloc ( yy_size_t , yyscan_t yyscanner ); +void *yyrealloc ( void *, yy_size_t , yyscan_t yyscanner ); +void yyfree ( void * , yyscan_t yyscanner ); + +#define yy_new_buffer yy_create_buffer +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! YY_CURRENT_BUFFER ){ \ + yyensure_buffer_stack (yyscanner); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_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 ){\ + yyensure_buffer_stack (yyscanner); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_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 expr_yywrap(yyscanner) (/*CONSTCOND*/1) +#define YY_SKIP_YYWRAP +typedef flex_uint8_t 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 yynoreturn yy_fatal_error ( const 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 = (int) (yy_cp - yy_bp); \ + yyg->yy_hold_char = *yy_cp; \ + *yy_cp = '\0'; \ + yyg->yy_c_buf_p = yy_cp; +#define YY_NUM_RULES 51 +#define YY_END_OF_BUFFER 52 +/* 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 const flex_int16_t yy_accept[129] = + { 0, + 0, 0, 0, 0, 52, 1, 3, 5, 1, 50, + 47, 49, 50, 22, 10, 21, 24, 25, 8, 6, + 26, 7, 50, 9, 43, 43, 50, 18, 11, 19, + 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, + 50, 20, 23, 1, 1, 3, 4, 0, 47, 13, + 45, 44, 43, 0, 43, 38, 16, 14, 12, 15, + 17, 46, 46, 46, 46, 46, 46, 30, 46, 46, + 28, 46, 46, 46, 48, 0, 2, 0, 0, 44, + 0, 44, 43, 27, 46, 46, 37, 46, 46, 29, + 46, 46, 46, 46, 0, 45, 43, 33, 36, 46, + + 46, 46, 39, 35, 40, 34, 43, 41, 46, 46, + 43, 31, 46, 43, 32, 43, 43, 43, 43, 43, + 43, 43, 43, 43, 43, 43, 42, 0 + } ; + +static const YY_CHAR 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, + 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, + 20, 21, 22, 23, 24, 25, 26, 27, 1, 28, + 29, 30, 1, 1, 31, 32, 33, 34, 35, 36, + 32, 37, 38, 32, 32, 39, 32, 40, 41, 32, + 32, 42, 43, 44, 45, 32, 46, 32, 32, 32, + 1, 47, 1, 1, 32, 1, 31, 32, 33, 34, + + 35, 36, 32, 37, 38, 32, 32, 39, 32, 40, + 41, 32, 32, 42, 43, 44, 45, 32, 46, 32, + 32, 32, 1, 48, 1, 49, 1, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32 + } ; + +static const YY_CHAR yy_meta[50] = + { 0, + 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, + 1, 3, 1, 3, 4, 1, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, + 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 1, 1, 1 + } ; + +static const flex_int16_t yy_base[138] = + { 0, + 0, 3, 50, 0, 204, 156, 6, 205, 97, 205, + 7, 205, 173, 205, 205, 205, 205, 205, 205, 205, + 205, 205, 0, 205, 0, 1, 0, 0, 205, 2, + 161, 0, 169, 0, 168, 155, 0, 155, 0, 159, + 9, 205, 205, 148, 99, 15, 205, 191, 19, 205, + 158, 157, 172, 10, 171, 0, 205, 205, 205, 205, + 205, 0, 155, 145, 144, 152, 146, 144, 139, 143, + 0, 146, 135, 143, 205, 172, 205, 169, 13, 128, + 32, 0, 14, 0, 120, 110, 0, 100, 97, 101, + 101, 99, 103, 97, 92, 0, 29, 0, 0, 101, + + 95, 88, 0, 0, 0, 0, 19, 0, 93, 92, + 103, 0, 74, 88, 0, 89, 91, 92, 93, 97, + 100, 101, 104, 102, 111, 110, 7, 205, 146, 153, + 9, 157, 160, 163, 166, 171, 174 + } ; + +static const flex_int16_t yy_def[138] = + { 0, + 129, 129, 128, 3, 128, 130, 128, 128, 130, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 131, 128, 132, 132, 133, 128, 128, 128, + 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, + 128, 128, 128, 130, 130, 128, 128, 128, 128, 128, + 131, 135, 26, 136, 26, 133, 128, 128, 128, 128, + 128, 134, 134, 134, 134, 134, 134, 134, 134, 134, + 134, 134, 134, 134, 128, 128, 128, 128, 137, 135, + 136, 81, 26, 134, 134, 134, 134, 134, 134, 134, + 134, 134, 134, 134, 137, 95, 26, 134, 134, 134, + + 134, 134, 134, 134, 134, 134, 26, 134, 134, 134, + 26, 134, 134, 26, 134, 26, 26, 26, 26, 26, + 26, 26, 26, 26, 26, 26, 26, 0, 128, 128, + 128, 128, 128, 128, 128, 128, 128 + } ; + +static const flex_int16_t yy_nxt[255] = + { 0, + 128, 7, 8, 7, 7, 8, 7, 46, 49, 46, + 49, 75, 76, 51, 52, 52, 46, 128, 46, 55, + 49, 81, 49, 81, 95, 53, 95, 57, 58, 59, + 60, 61, 53, 97, 54, 54, 72, 53, 65, 66, + 69, 73, 111, 128, 70, 128, 9, 53, 107, 9, + 10, 11, 12, 11, 13, 14, 15, 16, 17, 18, + 19, 20, 21, 22, 23, 24, 25, 25, 25, 25, + 25, 25, 25, 25, 25, 26, 27, 28, 29, 30, + 31, 32, 33, 32, 34, 35, 32, 36, 32, 37, + 38, 32, 32, 39, 32, 40, 41, 42, 43, 47, + + 48, 77, 78, 128, 116, 128, 53, 53, 117, 53, + 53, 53, 115, 118, 120, 53, 119, 121, 53, 53, + 53, 114, 53, 122, 123, 124, 125, 126, 53, 53, + 113, 112, 110, 109, 127, 108, 106, 105, 104, 103, + 102, 101, 100, 45, 99, 45, 6, 6, 6, 6, + 6, 6, 6, 44, 98, 44, 44, 44, 44, 44, + 53, 53, 54, 53, 56, 56, 56, 62, 62, 62, + 80, 77, 80, 82, 75, 82, 96, 94, 96, 93, + 92, 91, 90, 89, 88, 87, 86, 85, 84, 83, + 53, 54, 79, 47, 45, 74, 71, 68, 67, 64, + + 63, 50, 45, 128, 5, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128 + } ; + +static const flex_int16_t yy_chk[255] = + { 0, + 0, 1, 1, 1, 2, 2, 2, 7, 11, 7, + 11, 41, 41, 131, 25, 26, 46, 0, 46, 26, + 49, 54, 49, 54, 79, 127, 79, 28, 28, 28, + 30, 30, 83, 83, 25, 26, 39, 107, 34, 34, + 37, 39, 107, 81, 37, 81, 1, 97, 97, 2, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 9, + + 9, 45, 45, 95, 114, 95, 114, 116, 116, 117, + 118, 119, 113, 117, 119, 120, 118, 120, 121, 122, + 124, 111, 123, 121, 122, 123, 124, 125, 126, 125, + 110, 109, 102, 101, 126, 100, 94, 93, 92, 91, + 90, 89, 88, 9, 86, 45, 129, 129, 129, 129, + 129, 129, 129, 130, 85, 130, 130, 130, 130, 130, + 132, 132, 80, 132, 133, 133, 133, 134, 134, 134, + 135, 78, 135, 136, 76, 136, 137, 74, 137, 73, + 72, 70, 69, 68, 67, 66, 65, 64, 63, 55, + 53, 52, 51, 48, 44, 40, 38, 36, 35, 33, + + 31, 13, 6, 5, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128 + } ; + +/* 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 +#line 1 "exprscan.l" +#line 2 "exprscan.l" +/*------------------------------------------------------------------------- + * + * exprscan.l + * lexical scanner for pgbench backslash commands + * + * This lexer supports two operating modes: + * + * In INITIAL state, just parse off whitespace-separated words (this mode + * is basically equivalent to strtok(), which is what we used to use). + * + * In EXPR state, lex for the simple expression syntax of exprparse.y. + * + * In either mode, stop upon hitting newline or end of string. + * + * Note that this lexer operates within the framework created by psqlscan.l, + * + * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/bin/pgbench/exprscan.l + * + *------------------------------------------------------------------------- + */ + +#include "fe_utils/psqlscan_int.h" + +/* context information for reporting errors in expressions */ +static const char *expr_source = NULL; +static int expr_lineno = 0; +static int expr_start_offset = 0; +static const char *expr_command = NULL; + +/* indicates whether last yylex() call read a newline */ +static bool last_was_newline = false; + +/* + * Work around a bug in flex 2.5.35: it emits a couple of functions that + * it forgets to emit declarations for. Since we use -Wmissing-prototypes, + * this would cause warnings. Providing our own declarations should be + * harmless even when the bug gets fixed. + */ +extern int expr_yyget_column(yyscan_t yyscanner); +extern void expr_yyset_column(int column_no, yyscan_t yyscanner); + +/* LCOV_EXCL_START */ + +#line 790 "exprscan.c" +/* Except for the prefix, these options should match psqlscan.l */ +#define YY_NO_INPUT 1 +/* Character classes */ +/* {space} + {nonspace} + {newline} should cover all characters */ +/* Line continuation marker */ +/* case insensitive keywords */ +/* Exclusive states */ + +#line 799 "exprscan.c" + +#define INITIAL 0 +#define EXPR 1 + +#ifndef YY_NO_UNISTD_H +/* Special case for "unistd.h", since it is non-ANSI. We include it way + * down here because we want the user's section 1 to have been scanned first. + * The user has a chance to override it with an option. + */ +#include <unistd.h> +#endif + +#ifndef YY_EXTRA_TYPE +#define YY_EXTRA_TYPE void * +#endif + +/* 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; + int yy_n_chars; + int 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; + + }; /* 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 + +int yylex_init (yyscan_t* scanner); + +int yylex_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 yylex_destroy ( yyscan_t yyscanner ); + +int yyget_debug ( yyscan_t yyscanner ); + +void yyset_debug ( int debug_flag , yyscan_t yyscanner ); + +YY_EXTRA_TYPE yyget_extra ( yyscan_t yyscanner ); + +void yyset_extra ( YY_EXTRA_TYPE user_defined , yyscan_t yyscanner ); + +FILE *yyget_in ( yyscan_t yyscanner ); + +void yyset_in ( FILE * _in_str , yyscan_t yyscanner ); + +FILE *yyget_out ( yyscan_t yyscanner ); + +void yyset_out ( FILE * _out_str , yyscan_t yyscanner ); + + int yyget_leng ( yyscan_t yyscanner ); + +char *yyget_text ( yyscan_t yyscanner ); + +int yyget_lineno ( yyscan_t yyscanner ); + +void yyset_lineno ( int _line_number , yyscan_t yyscanner ); + +int yyget_column ( yyscan_t yyscanner ); + +void yyset_column ( int _column_no , yyscan_t yyscanner ); + +YYSTYPE * yyget_lval ( yyscan_t yyscanner ); + +void yyset_lval ( YYSTYPE * yylval_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 yywrap ( yyscan_t yyscanner ); +#else +extern int yywrap ( yyscan_t yyscanner ); +#endif +#endif + +#ifndef YY_NO_UNPUT + +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy ( char *, const char *, int , yyscan_t yyscanner); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen ( const 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 +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k */ +#define YY_READ_BUF_SIZE 16384 +#else +#define YY_READ_BUF_SIZE 8192 +#endif /* __ia64__ */ +#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, (size_t) 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 = '*'; \ + int 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 = (int) fread(buf, 1, (yy_size_t) 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 yylex \ + (YYSTYPE * yylval_param , yyscan_t yyscanner); + +#define YY_DECL int yylex \ + (YYSTYPE * yylval_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 /*LINTED*/break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +/** The main scanner function which does all the work. + */ +YY_DECL +{ + yy_state_type yy_current_state; + char *yy_cp, *yy_bp; + int yy_act; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + yylval = yylval_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 ) { + yyensure_buffer_stack (yyscanner); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); + } + + yy_load_buffer_state( yyscanner ); + } + + { +#line 93 "exprscan.l" + + + +#line 97 "exprscan.l" + /* Declare some local variables inside yylex(), for convenience */ + PsqlScanState cur_state = yyextra; + + /* + * Force flex into the state indicated by start_state. This has a + * couple of purposes: it lets some of the functions below set a new + * starting state without ugly direct access to flex variables, and it + * allows us to transition from one flex lexer to another so that we + * can lex different parts of the source string using separate lexers. + */ + BEGIN(cur_state->start_state); + + /* Reset was-newline flag */ + last_was_newline = false; + + + /* INITIAL state */ + +#line 1095 "exprscan.c" + + while ( /*CONSTCOND*/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 + { + 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 >= 129 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + ++yy_cp; + } + while ( yy_current_state != 128 ); + 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 +#line 115 "exprscan.l" +{ + /* Found a word, emit and return it */ + psqlscan_emit(cur_state, yytext, yyleng); + return 1; + } + YY_BREAK +/* + * We need this rule to avoid returning "word\" instead of recognizing + * a continuation marker just after a word: + */ +case 2: +/* rule 2 can match eol */ +YY_RULE_SETUP +#line 125 "exprscan.l" +{ + /* Found "word\\\r?\n", emit and return just "word" */ + int wordlen = yyleng - 2; + if (yytext[wordlen] == '\r') + wordlen--; + Assert(yytext[wordlen] == '\\'); + psqlscan_emit(cur_state, yytext, wordlen); + return 1; + } + YY_BREAK +case 3: +YY_RULE_SETUP +#line 135 "exprscan.l" +{ /* ignore */ } + YY_BREAK +case 4: +/* rule 4 can match eol */ +YY_RULE_SETUP +#line 137 "exprscan.l" +{ /* ignore */ } + YY_BREAK +case 5: +/* rule 5 can match eol */ +YY_RULE_SETUP +#line 139 "exprscan.l" +{ + /* report end of command */ + last_was_newline = true; + return 0; + } + YY_BREAK +/* EXPR state */ + +case 6: +YY_RULE_SETUP +#line 149 "exprscan.l" +{ return '+'; } + YY_BREAK +case 7: +YY_RULE_SETUP +#line 150 "exprscan.l" +{ return '-'; } + YY_BREAK +case 8: +YY_RULE_SETUP +#line 151 "exprscan.l" +{ return '*'; } + YY_BREAK +case 9: +YY_RULE_SETUP +#line 152 "exprscan.l" +{ return '/'; } + YY_BREAK +case 10: +YY_RULE_SETUP +#line 153 "exprscan.l" +{ return '%'; } /* C version, also in Pg SQL */ + YY_BREAK +case 11: +YY_RULE_SETUP +#line 154 "exprscan.l" +{ return '='; } + YY_BREAK +case 12: +YY_RULE_SETUP +#line 155 "exprscan.l" +{ return NE_OP; } + YY_BREAK +case 13: +YY_RULE_SETUP +#line 156 "exprscan.l" +{ return NE_OP; } /* C version, also in Pg SQL */ + YY_BREAK +case 14: +YY_RULE_SETUP +#line 157 "exprscan.l" +{ return LE_OP; } + YY_BREAK +case 15: +YY_RULE_SETUP +#line 158 "exprscan.l" +{ return GE_OP; } + YY_BREAK +case 16: +YY_RULE_SETUP +#line 159 "exprscan.l" +{ return LS_OP; } + YY_BREAK +case 17: +YY_RULE_SETUP +#line 160 "exprscan.l" +{ return RS_OP; } + YY_BREAK +case 18: +YY_RULE_SETUP +#line 161 "exprscan.l" +{ return '<'; } + YY_BREAK +case 19: +YY_RULE_SETUP +#line 162 "exprscan.l" +{ return '>'; } + YY_BREAK +case 20: +YY_RULE_SETUP +#line 163 "exprscan.l" +{ return '|'; } + YY_BREAK +case 21: +YY_RULE_SETUP +#line 164 "exprscan.l" +{ return '&'; } + YY_BREAK +case 22: +YY_RULE_SETUP +#line 165 "exprscan.l" +{ return '#'; } + YY_BREAK +case 23: +YY_RULE_SETUP +#line 166 "exprscan.l" +{ return '~'; } + YY_BREAK +case 24: +YY_RULE_SETUP +#line 168 "exprscan.l" +{ return '('; } + YY_BREAK +case 25: +YY_RULE_SETUP +#line 169 "exprscan.l" +{ return ')'; } + YY_BREAK +case 26: +YY_RULE_SETUP +#line 170 "exprscan.l" +{ return ','; } + YY_BREAK +case 27: +YY_RULE_SETUP +#line 172 "exprscan.l" +{ return AND_OP; } + YY_BREAK +case 28: +YY_RULE_SETUP +#line 173 "exprscan.l" +{ return OR_OP; } + YY_BREAK +case 29: +YY_RULE_SETUP +#line 174 "exprscan.l" +{ return NOT_OP; } + YY_BREAK +case 30: +YY_RULE_SETUP +#line 175 "exprscan.l" +{ return IS_OP; } + YY_BREAK +case 31: +YY_RULE_SETUP +#line 176 "exprscan.l" +{ return ISNULL_OP; } + YY_BREAK +case 32: +YY_RULE_SETUP +#line 177 "exprscan.l" +{ return NOTNULL_OP; } + YY_BREAK +case 33: +YY_RULE_SETUP +#line 179 "exprscan.l" +{ return CASE_KW; } + YY_BREAK +case 34: +YY_RULE_SETUP +#line 180 "exprscan.l" +{ return WHEN_KW; } + YY_BREAK +case 35: +YY_RULE_SETUP +#line 181 "exprscan.l" +{ return THEN_KW; } + YY_BREAK +case 36: +YY_RULE_SETUP +#line 182 "exprscan.l" +{ return ELSE_KW; } + YY_BREAK +case 37: +YY_RULE_SETUP +#line 183 "exprscan.l" +{ return END_KW; } + YY_BREAK +case 38: +YY_RULE_SETUP +#line 185 "exprscan.l" +{ + yylval->str = pg_strdup(yytext + 1); + return VARIABLE; + } + YY_BREAK +case 39: +YY_RULE_SETUP +#line 190 "exprscan.l" +{ return NULL_CONST; } + YY_BREAK +case 40: +YY_RULE_SETUP +#line 191 "exprscan.l" +{ + yylval->bval = true; + return BOOLEAN_CONST; + } + YY_BREAK +case 41: +YY_RULE_SETUP +#line 195 "exprscan.l" +{ + yylval->bval = false; + return BOOLEAN_CONST; + } + YY_BREAK +case 42: +YY_RULE_SETUP +#line 199 "exprscan.l" +{ + /* + * Special handling for PG_INT64_MIN, which can't + * accurately be represented here, as the minus sign is + * lexed separately and INT64_MIN can't be represented as + * a positive integer. + */ + return MAXINT_PLUS_ONE_CONST; + } + YY_BREAK +case 43: +YY_RULE_SETUP +#line 208 "exprscan.l" +{ + if (!strtoint64(yytext, true, &yylval->ival)) + expr_yyerror_more(yyscanner, "bigint constant overflow", + strdup(yytext)); + return INTEGER_CONST; + } + YY_BREAK +case 44: +YY_RULE_SETUP +#line 214 "exprscan.l" +{ + if (!strtodouble(yytext, true, &yylval->dval)) + expr_yyerror_more(yyscanner, "double constant overflow", + strdup(yytext)); + return DOUBLE_CONST; + } + YY_BREAK +case 45: +YY_RULE_SETUP +#line 220 "exprscan.l" +{ + if (!strtodouble(yytext, true, &yylval->dval)) + expr_yyerror_more(yyscanner, "double constant overflow", + strdup(yytext)); + return DOUBLE_CONST; + } + YY_BREAK +case 46: +YY_RULE_SETUP +#line 226 "exprscan.l" +{ + yylval->str = pg_strdup(yytext); + return FUNCTION; + } + YY_BREAK +case 47: +YY_RULE_SETUP +#line 231 "exprscan.l" +{ /* ignore */ } + YY_BREAK +case 48: +/* rule 48 can match eol */ +YY_RULE_SETUP +#line 233 "exprscan.l" +{ /* ignore */ } + YY_BREAK +case 49: +/* rule 49 can match eol */ +YY_RULE_SETUP +#line 235 "exprscan.l" +{ + /* report end of command */ + last_was_newline = true; + return 0; + } + YY_BREAK +case 50: +YY_RULE_SETUP +#line 241 "exprscan.l" +{ + /* + * must strdup yytext so that expr_yyerror_more doesn't + * change it while finding end of line + */ + expr_yyerror_more(yyscanner, "unexpected character", + pg_strdup(yytext)); + /* NOTREACHED, syntax_error calls exit() */ + return 0; + } + YY_BREAK + +case YY_STATE_EOF(INITIAL): +case YY_STATE_EOF(EXPR): +#line 254 "exprscan.l" +{ + if (cur_state->buffer_stack == NULL) + return 0; /* end of input reached */ + + /* + * We were expanding a variable, so pop the inclusion + * stack and keep lexing + */ + psqlscan_pop_buffer_stack(cur_state); + psqlscan_select_top_buffer(cur_state); + } + YY_BREAK +case 51: +YY_RULE_SETUP +#line 266 "exprscan.l" +YY_FATAL_ERROR( "flex scanner jammed" ); + YY_BREAK +#line 1494 "exprscan.c" + + 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 + * yylex(). 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 ( yywrap( 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 yylex */ + +/* 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; + char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; + char *source = yyg->yytext_ptr; + 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 + { + int 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 ) + { + int 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. */ + yyrealloc( (void *) b->yy_ch_buf, + (yy_size_t) (b->yy_buf_size + 2) , yyscanner ); + } + else + /* Can't grow it, we don't own it. */ + b->yy_ch_buf = NULL; + + 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; + yyrestart( 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 ((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. */ + int new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1); + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc( + (void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf, (yy_size_t) new_size , yyscanner ); + if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); + /* "- 2" to take care of EOB's */ + YY_CURRENT_BUFFER_LVALUE->yy_buf_size = (int) (new_size - 2); + } + + 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) +{ + yy_state_type yy_current_state; + 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 ) + { + 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 >= 129 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + 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) +{ + int yy_is_jam; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* This var may be unused depending upon options. */ + char *yy_cp = yyg->yy_c_buf_p; + + 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 >= 129 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + yy_is_jam = (yy_current_state == 128); + + (void)yyg; + return yy_is_jam ? 0 : yy_current_state; +} + +#ifndef YY_NO_UNPUT + +#endif + +#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 */ + int offset = (int) (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. */ + yyrestart( yyin , yyscanner); + + /*FALLTHROUGH*/ + + case EOB_ACT_END_OF_FILE: + { + if ( yywrap( yyscanner ) ) + return 0; + + 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 yyrestart (FILE * input_file , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if ( ! YY_CURRENT_BUFFER ){ + yyensure_buffer_stack (yyscanner); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); + } + + yy_init_buffer( YY_CURRENT_BUFFER, input_file , yyscanner); + yy_load_buffer_state( yyscanner ); +} + +/** Switch to a different input buffer. + * @param new_buffer The new input buffer. + * @param yyscanner The scanner object. + */ + void yy_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 + * yypop_buffer_state(); + * yypush_buffer_state(new_buffer); + */ + yyensure_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; + yy_load_buffer_state( yyscanner ); + + /* We don't actually know whether we did this switch during + * EOF (yywrap()) processing, but the only time this flag + * is looked at is after yywrap() is called, so it's safe + * to go ahead and always set it. + */ + yyg->yy_did_buffer_switch_on_eof = 1; +} + +static void yy_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 yy_create_buffer (FILE * file, int size , yyscan_t yyscanner) +{ + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) , yyscanner ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_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 *) yyalloc( (yy_size_t) (b->yy_buf_size + 2) , yyscanner ); + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_is_our_buffer = 1; + + yy_init_buffer( b, file , yyscanner); + + return b; +} + +/** Destroy the buffer. + * @param b a buffer created with yy_create_buffer() + * @param yyscanner The scanner object. + */ + void yy_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 ) + yyfree( (void *) b->yy_ch_buf , yyscanner ); + + yyfree( (void *) b , yyscanner ); +} + +/* Initializes or reinitializes a buffer. + * This function is sometimes called more than once on the same buffer, + * such as during a yyrestart() or at EOF. + */ + static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file , yyscan_t yyscanner) + +{ + int oerrno = errno; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + yy_flush_buffer( b , yyscanner); + + b->yy_input_file = file; + b->yy_fill_buffer = 1; + + /* If b is the current buffer, then yy_init_buffer was _probably_ + * called from yyrestart() 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 yy_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 ) + yy_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 yypush_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + if (new_buffer == NULL) + return; + + yyensure_buffer_stack(yyscanner); + + /* This block is copied from yy_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 yy_switch_to_buffer. */ + yy_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 yypop_buffer_state (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + if (!YY_CURRENT_BUFFER) + return; + + yy_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) { + yy_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 yyensure_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; /* After all that talk, this was set to 1 anyways... */ + yyg->yy_buffer_stack = (struct yy_buffer_state**)yyalloc + (num_to_alloc * sizeof(struct yy_buffer_state*) + , yyscanner); + if ( ! yyg->yy_buffer_stack ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_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. */ + yy_size_t grow_size = 8 /* arbitrary grow size */; + + num_to_alloc = yyg->yy_buffer_stack_max + grow_size; + yyg->yy_buffer_stack = (struct yy_buffer_state**)yyrealloc + (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 yyensure_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 yy_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 NULL; + + b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) , yyscanner ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); + + b->yy_buf_size = (int) (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 = NULL; + 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; + + yy_switch_to_buffer( b , yyscanner ); + + return b; +} + +/** Setup the input buffer state to scan a string. The next call to yylex() 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 + * yy_scan_bytes() instead. + */ +YY_BUFFER_STATE yy_scan_string (const char * yystr , yyscan_t yyscanner) +{ + + return yy_scan_bytes( yystr, (int) strlen(yystr) , yyscanner); +} + +/** Setup the input buffer state to scan the given bytes. The next call to yylex() 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 yy_scan_bytes (const char * yybytes, int _yybytes_len , yyscan_t yyscanner) +{ + YY_BUFFER_STATE b; + char *buf; + yy_size_t n; + int i; + + /* Get memory for full buffer, including space for trailing EOB's. */ + n = (yy_size_t) (_yybytes_len + 2); + buf = (char *) yyalloc( n , yyscanner ); + if ( ! buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_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 = yy_scan_buffer( buf, n , yyscanner); + if ( ! b ) + YY_FATAL_ERROR( "bad buffer in yy_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 yynoreturn yy_fatal_error (const char* msg , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + (void)yyg; + 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 yyget_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 yyget_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 yyget_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 *yyget_in (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyin; +} + +/** Get the output stream. + * @param yyscanner The scanner object. + */ +FILE *yyget_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. + */ +int yyget_leng (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyleng; +} + +/** Get the current token. + * @param yyscanner The scanner object. + */ + +char *yyget_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 yyset_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 line number + * @param yyscanner The scanner object. + */ +void yyset_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( "yyset_lineno called with no buffer" ); + + yylineno = _line_number; +} + +/** Set the current column. + * @param _column_no column number + * @param yyscanner The scanner object. + */ +void yyset_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( "yyset_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 yy_switch_to_buffer + */ +void yyset_in (FILE * _in_str , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyin = _in_str ; +} + +void yyset_out (FILE * _out_str , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyout = _out_str ; +} + +int yyget_debug (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yy_flex_debug; +} + +void yyset_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 * yyget_lval (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yylval; +} + +void yyset_lval (YYSTYPE * yylval_param , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yylval = yylval_param; +} + +/* User-visible API */ + +/* yylex_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 yylex_init(yyscan_t* ptr_yy_globals) +{ + if (ptr_yy_globals == NULL){ + errno = EINVAL; + return 1; + } + + *ptr_yy_globals = (yyscan_t) yyalloc ( 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 ); +} + +/* yylex_init_extra has the same functionality as yylex_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 yyalloc in + * the yyextra field. + */ +int yylex_init_extra( YY_EXTRA_TYPE yy_user_defined, yyscan_t* ptr_yy_globals ) +{ + struct yyguts_t dummy_yyguts; + + yyset_extra (yy_user_defined, &dummy_yyguts); + + if (ptr_yy_globals == NULL){ + errno = EINVAL; + return 1; + } + + *ptr_yy_globals = (yyscan_t) yyalloc ( 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)); + + yyset_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 yylex_destroy(), so don't allocate here. + */ + + yyg->yy_buffer_stack = NULL; + yyg->yy_buffer_stack_top = 0; + yyg->yy_buffer_stack_max = 0; + yyg->yy_c_buf_p = NULL; + 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 = NULL; + yyout = NULL; +#endif + + /* For future reference: Set errno on error, since we are called by + * yylex_init() + */ + return 0; +} + +/* yylex_destroy is for both reentrant and non-reentrant scanners. */ +int yylex_destroy (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* Pop the buffer stack, destroying each element. */ + while(YY_CURRENT_BUFFER){ + yy_delete_buffer( YY_CURRENT_BUFFER , yyscanner ); + YY_CURRENT_BUFFER_LVALUE = NULL; + yypop_buffer_state(yyscanner); + } + + /* Destroy the stack itself. */ + yyfree(yyg->yy_buffer_stack , yyscanner); + yyg->yy_buffer_stack = NULL; + + /* Destroy the start condition stack. */ + yyfree( 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 + * yylex() is called, initialization will occur. */ + yy_init_globals( yyscanner); + + /* Destroy the main struct (reentrant only). */ + yyfree ( yyscanner , yyscanner ); + yyscanner = NULL; + return 0; +} + +/* + * Internal utility routines. + */ + +#ifndef yytext_ptr +static void yy_flex_strncpy (char* s1, const char * s2, int n , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + (void)yyg; + + int i; + for ( i = 0; i < n; ++i ) + s1[i] = s2[i]; +} +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (const char * s , yyscan_t yyscanner) +{ + int n; + for ( n = 0; s[n]; ++n ) + ; + + return n; +} +#endif + +void *yyalloc (yy_size_t size , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + (void)yyg; + return malloc(size); +} + +void *yyrealloc (void * ptr, yy_size_t size , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + (void)yyg; + + /* 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 realloc(ptr, size); +} + +void yyfree (void * ptr , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + (void)yyg; + free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ +} + +#define YYTABLES_NAME "yytables" + +#line 266 "exprscan.l" + + +/* LCOV_EXCL_STOP */ + +void +expr_yyerror_more(yyscan_t yyscanner, const char *message, const char *more) +{ + PsqlScanState state = yyget_extra(yyscanner); + int error_detection_offset = expr_scanner_offset(state) - 1; + YYSTYPE lval; + char *full_line; + + /* + * While parsing an expression, we may not have collected the whole line + * yet from the input source. Lex till EOL so we can report whole line. + * (If we're at EOF, it's okay to call yylex() an extra time.) + */ + if (!last_was_newline) + { + while (yylex(&lval, yyscanner)) + /* skip */ ; + } + + /* Extract the line, trimming trailing newline if any */ + full_line = expr_scanner_get_substring(state, + expr_start_offset, + expr_scanner_offset(state), + true); + + syntax_error(expr_source, expr_lineno, full_line, expr_command, + message, more, error_detection_offset - expr_start_offset); +} + +void +expr_yyerror(yyscan_t yyscanner, const char *message) +{ + expr_yyerror_more(yyscanner, message, NULL); +} + +/* + * Collect a space-separated word from a backslash command and return it + * in word_buf, along with its starting string offset in *offset. + * Returns true if successful, false if at end of command. + */ +bool +expr_lex_one_word(PsqlScanState state, PQExpBuffer word_buf, int *offset) +{ + int lexresult; + YYSTYPE lval; + + /* Must be scanning already */ + Assert(state->scanbufhandle != NULL); + + /* Set current output target */ + state->output_buf = word_buf; + resetPQExpBuffer(word_buf); + + /* Set input source */ + if (state->buffer_stack != NULL) + yy_switch_to_buffer(state->buffer_stack->buf, state->scanner); + else + yy_switch_to_buffer(state->scanbufhandle, state->scanner); + + /* Set start state */ + state->start_state = INITIAL; + + /* And lex. */ + lexresult = yylex(&lval, state->scanner); + + /* + * Save start offset of word, if any. We could do this more efficiently, + * but for now this seems fine. + */ + if (lexresult) + *offset = expr_scanner_offset(state) - word_buf->len; + else + *offset = -1; + + /* + * In case the caller returns to using the regular SQL lexer, reselect the + * appropriate initial state. + */ + psql_scan_reselect_sql_lexer(state); + + return (bool) lexresult; +} + +/* + * Prepare to lex an expression via expr_yyparse(). + * + * Returns the yyscan_t that is to be passed to expr_yyparse(). + * (This is just state->scanner, but callers don't need to know that.) + */ +yyscan_t +expr_scanner_init(PsqlScanState state, + const char *source, int lineno, int start_offset, + const char *command) +{ + /* Save error context info */ + expr_source = source; + expr_lineno = lineno; + expr_start_offset = start_offset; + expr_command = command; + + /* Must be scanning already */ + Assert(state->scanbufhandle != NULL); + + /* Set current output target */ + state->output_buf = NULL; + + /* Set input source */ + if (state->buffer_stack != NULL) + yy_switch_to_buffer(state->buffer_stack->buf, state->scanner); + else + yy_switch_to_buffer(state->scanbufhandle, state->scanner); + + /* Set start state */ + state->start_state = EXPR; + + return state->scanner; +} + +/* + * Finish lexing an expression. + */ +void +expr_scanner_finish(yyscan_t yyscanner) +{ + PsqlScanState state = yyget_extra(yyscanner); + + /* + * Reselect appropriate initial state for SQL lexer. + */ + psql_scan_reselect_sql_lexer(state); +} + +/* + * Get offset from start of string to end of current lexer token. + * + * We rely on the knowledge that flex modifies the scan buffer by storing + * a NUL at the end of the current token (yytext). Note that this might + * not work quite right if we were parsing a sub-buffer, but since pgbench + * never invokes that functionality, it doesn't matter. + */ +int +expr_scanner_offset(PsqlScanState state) +{ + return strlen(state->scanbuf); +} + +/* + * Get a malloc'd copy of the lexer input string from start_offset + * to just before end_offset. If chomp is true, drop any trailing + * newline(s). + */ +char * +expr_scanner_get_substring(PsqlScanState state, + int start_offset, int end_offset, + bool chomp) +{ + char *result; + const char *scanptr = state->scanbuf + start_offset; + int slen = end_offset - start_offset; + + Assert(slen >= 0); + Assert(end_offset <= strlen(state->scanbuf)); + + if (chomp) + { + while (slen > 0 && + (scanptr[slen - 1] == '\n' || scanptr[slen - 1] == '\r')) + slen--; + } + + result = (char *) pg_malloc(slen + 1); + memcpy(result, scanptr, slen); + result[slen] = '\0'; + + return result; +} + +/* + * Get the line number associated with the given string offset + * (which must not be past the end of where we've lexed to). + */ +int +expr_scanner_get_lineno(PsqlScanState state, int offset) +{ + int lineno = 1; + const char *p = state->scanbuf; + + while (*p && offset > 0) + { + if (*p == '\n') + lineno++; + p++, offset--; + } + return lineno; +} + |