+++ /dev/null
-#line 2 "scan.c"
-/*-------------------------------------------------------------------------
- *
- * scan.l
- * lexical scanner for PostgreSQL
- *
- * NOTE NOTE NOTE:
- *
- * The rules in this file must be kept in sync with src/fe_utils/psqlscan.l
- * and src/interfaces/ecpg/preproc/pgc.l!
- *
- * The rules are designed so that the scanner never has to backtrack,
- * in the sense that there is always a rule that can match the input
- * consumed so far (the rule action may internally throw back some input
- * with yyless(), however). As explained in the flex manual, this makes
- * for a useful speed increase --- several percent faster when measuring
- * raw parsing (Flex + Bison). The extra complexity is mostly in the rules
- * for handling float numbers and continued string literals. If you change
- * the lexical rules, verify that you haven't broken the no-backtrack
- * property by running flex with the "-b" option and checking that the
- * resulting "lex.backup" file says that no backing up is needed. (As of
- * Postgres 9.2, this check is made automatically by the Makefile.)
- *
- *
- * Portions Copyright (c) 2003-2022, PgPool Global Development Group
- * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * IDENTIFICATION
- * src/backend/parser/scan.l
- *
- *-------------------------------------------------------------------------
- */
-#include "pool_parser.h"
-
-#include <ctype.h>
-#include <unistd.h>
-
-#include "parser.h" /* only needed for GUC variables */
-#include "scanner.h"
-#include "gramparse.h"
-#include "scansup.h"
-#include "kwlookup.h"
-#include "pg_wchar.h"
-
-#include "gram.h"
-#include "utils/palloc.h"
-#include "utils/elog.h"
-
-#line 51 "scan.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 core_yy_create_buffer_ALREADY_DEFINED
-#else
-#define yy_create_buffer core_yy_create_buffer
-#endif
-
-#ifdef yy_delete_buffer
-#define core_yy_delete_buffer_ALREADY_DEFINED
-#else
-#define yy_delete_buffer core_yy_delete_buffer
-#endif
-
-#ifdef yy_scan_buffer
-#define core_yy_scan_buffer_ALREADY_DEFINED
-#else
-#define yy_scan_buffer core_yy_scan_buffer
-#endif
-
-#ifdef yy_scan_string
-#define core_yy_scan_string_ALREADY_DEFINED
-#else
-#define yy_scan_string core_yy_scan_string
-#endif
-
-#ifdef yy_scan_bytes
-#define core_yy_scan_bytes_ALREADY_DEFINED
-#else
-#define yy_scan_bytes core_yy_scan_bytes
-#endif
-
-#ifdef yy_init_buffer
-#define core_yy_init_buffer_ALREADY_DEFINED
-#else
-#define yy_init_buffer core_yy_init_buffer
-#endif
-
-#ifdef yy_flush_buffer
-#define core_yy_flush_buffer_ALREADY_DEFINED
-#else
-#define yy_flush_buffer core_yy_flush_buffer
-#endif
-
-#ifdef yy_load_buffer_state
-#define core_yy_load_buffer_state_ALREADY_DEFINED
-#else
-#define yy_load_buffer_state core_yy_load_buffer_state
-#endif
-
-#ifdef yy_switch_to_buffer
-#define core_yy_switch_to_buffer_ALREADY_DEFINED
-#else
-#define yy_switch_to_buffer core_yy_switch_to_buffer
-#endif
-
-#ifdef yypush_buffer_state
-#define core_yypush_buffer_state_ALREADY_DEFINED
-#else
-#define yypush_buffer_state core_yypush_buffer_state
-#endif
-
-#ifdef yypop_buffer_state
-#define core_yypop_buffer_state_ALREADY_DEFINED
-#else
-#define yypop_buffer_state core_yypop_buffer_state
-#endif
-
-#ifdef yyensure_buffer_stack
-#define core_yyensure_buffer_stack_ALREADY_DEFINED
-#else
-#define yyensure_buffer_stack core_yyensure_buffer_stack
-#endif
-
-#ifdef yylex
-#define core_yylex_ALREADY_DEFINED
-#else
-#define yylex core_yylex
-#endif
-
-#ifdef yyrestart
-#define core_yyrestart_ALREADY_DEFINED
-#else
-#define yyrestart core_yyrestart
-#endif
-
-#ifdef yylex_init
-#define core_yylex_init_ALREADY_DEFINED
-#else
-#define yylex_init core_yylex_init
-#endif
-
-#ifdef yylex_init_extra
-#define core_yylex_init_extra_ALREADY_DEFINED
-#else
-#define yylex_init_extra core_yylex_init_extra
-#endif
-
-#ifdef yylex_destroy
-#define core_yylex_destroy_ALREADY_DEFINED
-#else
-#define yylex_destroy core_yylex_destroy
-#endif
-
-#ifdef yyget_debug
-#define core_yyget_debug_ALREADY_DEFINED
-#else
-#define yyget_debug core_yyget_debug
-#endif
-
-#ifdef yyset_debug
-#define core_yyset_debug_ALREADY_DEFINED
-#else
-#define yyset_debug core_yyset_debug
-#endif
-
-#ifdef yyget_extra
-#define core_yyget_extra_ALREADY_DEFINED
-#else
-#define yyget_extra core_yyget_extra
-#endif
-
-#ifdef yyset_extra
-#define core_yyset_extra_ALREADY_DEFINED
-#else
-#define yyset_extra core_yyset_extra
-#endif
-
-#ifdef yyget_in
-#define core_yyget_in_ALREADY_DEFINED
-#else
-#define yyget_in core_yyget_in
-#endif
-
-#ifdef yyset_in
-#define core_yyset_in_ALREADY_DEFINED
-#else
-#define yyset_in core_yyset_in
-#endif
-
-#ifdef yyget_out
-#define core_yyget_out_ALREADY_DEFINED
-#else
-#define yyget_out core_yyget_out
-#endif
-
-#ifdef yyset_out
-#define core_yyset_out_ALREADY_DEFINED
-#else
-#define yyset_out core_yyset_out
-#endif
-
-#ifdef yyget_leng
-#define core_yyget_leng_ALREADY_DEFINED
-#else
-#define yyget_leng core_yyget_leng
-#endif
-
-#ifdef yyget_text
-#define core_yyget_text_ALREADY_DEFINED
-#else
-#define yyget_text core_yyget_text
-#endif
-
-#ifdef yyget_lineno
-#define core_yyget_lineno_ALREADY_DEFINED
-#else
-#define yyget_lineno core_yyget_lineno
-#endif
-
-#ifdef yyset_lineno
-#define core_yyset_lineno_ALREADY_DEFINED
-#else
-#define yyset_lineno core_yyset_lineno
-#endif
-
-#ifdef yyget_column
-#define core_yyget_column_ALREADY_DEFINED
-#else
-#define yyget_column core_yyget_column
-#endif
-
-#ifdef yyset_column
-#define core_yyset_column_ALREADY_DEFINED
-#else
-#define yyset_column core_yyset_column
-#endif
-
-#ifdef yywrap
-#define core_yywrap_ALREADY_DEFINED
-#else
-#define yywrap core_yywrap
-#endif
-
-#ifdef yyget_lval
-#define core_yyget_lval_ALREADY_DEFINED
-#else
-#define yyget_lval core_yyget_lval
-#endif
-
-#ifdef yyset_lval
-#define core_yyset_lval_ALREADY_DEFINED
-#else
-#define yyset_lval core_yyset_lval
-#endif
-
-#ifdef yyget_lloc
-#define core_yyget_lloc_ALREADY_DEFINED
-#else
-#define yyget_lloc core_yyget_lloc
-#endif
-
-#ifdef yyset_lloc
-#define core_yyset_lloc_ALREADY_DEFINED
-#else
-#define yyset_lloc core_yyset_lloc
-#endif
-
-#ifdef yyalloc
-#define core_yyalloc_ALREADY_DEFINED
-#else
-#define yyalloc core_yyalloc
-#endif
-
-#ifdef yyrealloc
-#define core_yyrealloc_ALREADY_DEFINED
-#else
-#define yyrealloc core_yyrealloc
-#endif
-
-#ifdef yyfree
-#define core_yyfree_ALREADY_DEFINED
-#else
-#define yyfree core_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 core_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 67
-#define YY_END_OF_BUFFER 68
-/* 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[184] =
- { 0,
- 0, 0, 10, 10, 0, 0, 0, 0, 9, 9,
- 0, 0, 18, 18, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 68, 66, 1, 1, 54, 38,
- 54, 66, 53, 13, 53, 53, 53, 53, 57, 53,
- 53, 53, 53, 65, 65, 65, 65, 65, 65, 10,
- 16, 5, 5, 6, 6, 43, 40, 9, 21, 16,
- 19, 18, 18, 18, 18, 22, 22, 16, 31, 35,
- 35, 37, 41, 25, 26, 25, 1, 54, 52, 32,
- 55, 33, 1, 46, 58, 2, 58, 57, 62, 62,
- 45, 47, 49, 51, 48, 50, 65, 8, 14, 12,
-
- 44, 11, 10, 5, 7, 4, 3, 43, 42, 9,
- 21, 20, 18, 18, 18, 18, 17, 18, 18, 22,
- 28, 29, 27, 27, 28, 35, 34, 36, 27, 27,
- 56, 33, 1, 1, 63, 63, 2, 59, 58, 61,
- 60, 39, 15, 3, 18, 18, 18, 18, 29, 27,
- 27, 30, 36, 27, 27, 64, 18, 18, 18, 18,
- 18, 29, 27, 27, 30, 27, 27, 18, 27, 27,
- 27, 27, 27, 23, 27, 24, 27, 27, 27, 27,
- 27, 27, 0
- } ;
-
-static const YY_CHAR yy_ec[256] =
- { 0,
- 1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
- 1, 2, 4, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 2, 5, 6, 7, 8, 9, 10, 11, 12,
- 12, 13, 14, 12, 15, 16, 17, 18, 18, 18,
- 18, 18, 18, 18, 18, 19, 19, 20, 12, 21,
- 22, 23, 7, 7, 24, 25, 24, 24, 26, 24,
- 27, 27, 27, 27, 27, 27, 27, 28, 27, 27,
- 27, 27, 27, 27, 29, 27, 27, 30, 27, 27,
- 12, 31, 12, 9, 27, 7, 24, 25, 24, 24,
-
- 26, 24, 27, 27, 27, 27, 27, 27, 27, 28,
- 27, 27, 27, 27, 27, 27, 32, 27, 27, 33,
- 27, 27, 1, 7, 1, 7, 1, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27
- } ;
-
-static const YY_CHAR yy_meta[34] =
- { 0,
- 1, 2, 3, 3, 4, 5, 4, 6, 4, 4,
- 7, 1, 8, 4, 9, 10, 8, 11, 11, 1,
- 4, 4, 4, 12, 12, 12, 13, 13, 13, 13,
- 14, 13, 13
- } ;
-
-static const flex_int16_t yy_base[241] =
- { 0,
- 0, 0, 603, 602, 29, 48, 606, 605, 599, 598,
- 554, 548, 45, 64, 53, 69, 32, 51, 535, 519,
- 500, 474, 42, 71, 477, 615, 73, 79, 453, 615,
- 0, 70, 0, 615, 615, 448, 74, 436, 78, 65,
- 76, 410, 400, 0, 396, 367, 236, 220, 205, 0,
- 615, 0, 0, 24, 189, 0, 182, 0, 0, 169,
- 615, 103, 80, 97, 163, 0, 0, 161, 91, 0,
- 0, 141, 132, 615, 615, 81, 112, 0, 0, 615,
- 103, 128, 120, 615, 113, 0, 128, 132, 615, 138,
- 615, 615, 0, 0, 0, 0, 0, 615, 615, 615,
-
- 134, 615, 0, 0, 142, 615, 0, 0, 615, 0,
- 0, 615, 158, 0, 113, 0, 615, 111, 161, 0,
- 615, 101, 0, 0, 0, 0, 615, 109, 0, 0,
- 615, 103, 0, 172, 615, 152, 0, 615, 87, 150,
- 156, 615, 615, 0, 188, 194, 197, 202, 83, 0,
- 0, 0, 78, 0, 0, 615, 211, 216, 0, 219,
- 225, 615, 0, 0, 615, 0, 0, 233, 0, 0,
- 0, 0, 0, 615, 0, 615, 0, 0, 0, 0,
- 0, 0, 615, 248, 262, 276, 290, 304, 318, 332,
- 346, 360, 371, 375, 379, 387, 400, 414, 428, 442,
-
- 456, 469, 478, 491, 505, 514, 517, 525, 538, 542,
- 552, 558, 567, 172, 196, 199, 576, 213, 221, 579,
- 592, 227, 230, 232, 234, 365, 371, 373, 383, 385,
- 462, 510, 512, 521, 523, 546, 552, 572, 574, 596
- } ;
-
-static const flex_int16_t yy_def[241] =
- { 0,
- 183, 1, 184, 184, 185, 185, 186, 186, 187, 187,
- 188, 188, 189, 189, 190, 190, 191, 191, 186, 186,
- 188, 188, 192, 192, 183, 183, 183, 183, 193, 183,
- 193, 194, 193, 183, 183, 193, 183, 193, 195, 183,
- 193, 193, 193, 196, 196, 196, 196, 196, 196, 197,
- 183, 198, 198, 183, 183, 199, 183, 200, 201, 183,
- 183, 183, 202, 202, 183, 203, 203, 183, 204, 205,
- 205, 206, 183, 183, 183, 183, 183, 193, 193, 183,
- 207, 208, 209, 183, 210, 211, 210, 195, 183, 183,
- 183, 183, 193, 193, 193, 193, 196, 183, 183, 183,
-
- 183, 183, 197, 198, 183, 183, 212, 199, 183, 200,
- 201, 183, 183, 64, 183, 64, 183, 183, 213, 203,
- 183, 183, 214, 215, 216, 205, 183, 217, 218, 219,
- 183, 208, 209, 209, 183, 183, 211, 183, 87, 183,
- 220, 183, 183, 212, 221, 213, 213, 213, 183, 222,
- 223, 224, 217, 225, 226, 183, 221, 221, 64, 221,
- 213, 183, 227, 228, 183, 229, 230, 221, 231, 232,
- 233, 234, 235, 183, 236, 183, 237, 238, 239, 240,
- 232, 234, 0, 183, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
-
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183
- } ;
-
-static const flex_int16_t yy_nxt[649] =
- { 0,
- 26, 27, 28, 27, 29, 30, 31, 32, 33, 31,
- 34, 35, 33, 33, 36, 37, 38, 39, 39, 40,
- 41, 42, 43, 44, 45, 46, 44, 47, 48, 49,
- 26, 48, 49, 53, 71, 53, 105, 53, 53, 72,
- 106, 54, 53, 53, 75, 55, 62, 63, 64, 53,
- 53, 53, 53, 71, 53, 67, 53, 53, 72, 65,
- 54, 53, 53, 68, 55, 62, 63, 64, 53, 53,
- 53, 67, 76, 75, 77, 77, 77, 80, 65, 68,
- 77, 77, 77, 69, 91, 127, 92, 81, 81, 84,
- 117, 85, 85, 87, 118, 88, 88, 93, 94, 69,
-
- 162, 76, 183, 90, 113, 114, 114, 117, 122, 129,
- 80, 118, 130, 77, 77, 77, 127, 115, 149, 123,
- 81, 81, 124, 125, 134, 145, 134, 119, 134, 134,
- 85, 85, 134, 134, 134, 80, 134, 109, 136, 142,
- 134, 134, 134, 138, 143, 139, 139, 87, 127, 88,
- 88, 140, 140, 136, 105, 141, 141, 90, 106, 113,
- 114, 114, 147, 114, 114, 140, 140, 141, 141, 141,
- 141, 112, 115, 141, 141, 148, 134, 119, 134, 112,
- 134, 134, 150, 150, 134, 134, 134, 109, 134, 158,
- 159, 159, 134, 134, 134, 147, 114, 114, 147, 114,
-
- 114, 107, 160, 147, 114, 114, 151, 151, 148, 152,
- 152, 148, 158, 159, 159, 102, 161, 158, 159, 159,
- 158, 159, 159, 154, 154, 160, 147, 114, 114, 101,
- 160, 155, 155, 168, 158, 159, 159, 163, 163, 161,
- 164, 164, 165, 165, 166, 166, 100, 168, 50, 50,
- 50, 50, 50, 50, 50, 50, 50, 50, 50, 50,
- 50, 50, 52, 52, 52, 52, 52, 52, 52, 52,
- 52, 52, 52, 52, 52, 52, 56, 56, 56, 56,
- 56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
- 58, 58, 58, 58, 58, 58, 58, 58, 58, 58,
-
- 58, 58, 58, 58, 59, 59, 59, 59, 59, 59,
- 59, 59, 59, 59, 59, 59, 59, 59, 61, 61,
- 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
- 61, 61, 66, 66, 66, 66, 66, 66, 66, 66,
- 66, 66, 66, 66, 66, 66, 70, 70, 70, 70,
- 70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
- 74, 74, 74, 74, 74, 74, 74, 74, 74, 74,
- 74, 74, 74, 74, 78, 167, 167, 99, 78, 78,
- 82, 169, 169, 170, 170, 82, 82, 82, 89, 89,
- 89, 89, 97, 171, 171, 172, 172, 97, 97, 97,
-
- 103, 103, 103, 103, 103, 103, 98, 103, 103, 103,
- 103, 103, 103, 103, 104, 104, 104, 104, 104, 104,
- 104, 96, 104, 104, 104, 104, 104, 104, 108, 108,
- 108, 108, 95, 108, 108, 108, 108, 108, 108, 108,
- 108, 108, 110, 110, 110, 110, 110, 110, 86, 110,
- 110, 110, 110, 110, 110, 110, 111, 111, 111, 111,
- 111, 111, 83, 111, 111, 111, 111, 111, 111, 111,
- 116, 116, 173, 173, 79, 116, 183, 116, 120, 120,
- 120, 120, 120, 120, 60, 120, 120, 120, 120, 120,
- 120, 121, 121, 121, 121, 121, 121, 121, 121, 121,
-
- 121, 121, 121, 121, 121, 126, 126, 126, 126, 126,
- 60, 126, 126, 126, 126, 126, 126, 126, 126, 128,
- 174, 174, 175, 175, 73, 128, 128, 131, 131, 131,
- 132, 176, 176, 177, 177, 132, 132, 132, 133, 133,
- 73, 133, 133, 133, 133, 133, 133, 133, 133, 133,
- 133, 133, 135, 135, 135, 137, 178, 178, 60, 137,
- 137, 144, 179, 179, 60, 144, 144, 146, 146, 146,
- 146, 146, 146, 146, 146, 146, 146, 146, 146, 146,
- 146, 153, 180, 180, 181, 181, 153, 153, 153, 156,
- 156, 156, 157, 157, 157, 157, 157, 157, 157, 157,
-
- 157, 157, 157, 157, 157, 157, 182, 182, 51, 51,
- 57, 57, 51, 51, 25, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183
- } ;
-
-static const flex_int16_t yy_chk[649] =
- { 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, 1,
- 1, 1, 1, 5, 17, 5, 54, 5, 5, 17,
- 54, 5, 5, 5, 23, 5, 13, 13, 13, 5,
- 5, 5, 6, 18, 6, 15, 6, 6, 18, 13,
- 6, 6, 6, 15, 6, 14, 14, 14, 6, 6,
- 6, 16, 23, 24, 27, 27, 27, 32, 14, 16,
- 28, 28, 28, 15, 40, 153, 40, 32, 32, 37,
- 63, 37, 37, 39, 63, 39, 39, 41, 41, 16,
-
- 149, 24, 139, 39, 62, 62, 62, 64, 69, 76,
- 132, 64, 76, 77, 77, 77, 128, 62, 122, 69,
- 81, 81, 69, 69, 83, 118, 83, 115, 83, 83,
- 85, 85, 83, 83, 83, 82, 83, 73, 85, 101,
- 83, 83, 83, 87, 101, 87, 87, 88, 72, 88,
- 88, 90, 90, 87, 105, 90, 90, 88, 105, 113,
- 113, 113, 119, 119, 119, 136, 136, 140, 140, 136,
- 136, 68, 113, 141, 141, 119, 134, 65, 134, 60,
- 134, 134, 214, 214, 134, 134, 134, 57, 134, 145,
- 145, 145, 134, 134, 134, 146, 146, 146, 147, 147,
-
- 147, 55, 145, 148, 148, 148, 215, 215, 146, 216,
- 216, 147, 157, 157, 157, 49, 148, 158, 158, 158,
- 160, 160, 160, 218, 218, 157, 161, 161, 161, 48,
- 158, 219, 219, 160, 168, 168, 168, 222, 222, 161,
- 223, 223, 224, 224, 225, 225, 47, 168, 184, 184,
- 184, 184, 184, 184, 184, 184, 184, 184, 184, 184,
- 184, 184, 185, 185, 185, 185, 185, 185, 185, 185,
- 185, 185, 185, 185, 185, 185, 186, 186, 186, 186,
- 186, 186, 186, 186, 186, 186, 186, 186, 186, 186,
- 187, 187, 187, 187, 187, 187, 187, 187, 187, 187,
-
- 187, 187, 187, 187, 188, 188, 188, 188, 188, 188,
- 188, 188, 188, 188, 188, 188, 188, 188, 189, 189,
- 189, 189, 189, 189, 189, 189, 189, 189, 189, 189,
- 189, 189, 190, 190, 190, 190, 190, 190, 190, 190,
- 190, 190, 190, 190, 190, 190, 191, 191, 191, 191,
- 191, 191, 191, 191, 191, 191, 191, 191, 191, 191,
- 192, 192, 192, 192, 192, 192, 192, 192, 192, 192,
- 192, 192, 192, 192, 193, 226, 226, 46, 193, 193,
- 194, 227, 227, 228, 228, 194, 194, 194, 195, 195,
- 195, 195, 196, 229, 229, 230, 230, 196, 196, 196,
-
- 197, 197, 197, 197, 197, 197, 45, 197, 197, 197,
- 197, 197, 197, 197, 198, 198, 198, 198, 198, 198,
- 198, 43, 198, 198, 198, 198, 198, 198, 199, 199,
- 199, 199, 42, 199, 199, 199, 199, 199, 199, 199,
- 199, 199, 200, 200, 200, 200, 200, 200, 38, 200,
- 200, 200, 200, 200, 200, 200, 201, 201, 201, 201,
- 201, 201, 36, 201, 201, 201, 201, 201, 201, 201,
- 202, 202, 231, 231, 29, 202, 25, 202, 203, 203,
- 203, 203, 203, 203, 22, 203, 203, 203, 203, 203,
- 203, 204, 204, 204, 204, 204, 204, 204, 204, 204,
-
- 204, 204, 204, 204, 204, 205, 205, 205, 205, 205,
- 21, 205, 205, 205, 205, 205, 205, 205, 205, 206,
- 232, 232, 233, 233, 20, 206, 206, 207, 207, 207,
- 208, 234, 234, 235, 235, 208, 208, 208, 209, 209,
- 19, 209, 209, 209, 209, 209, 209, 209, 209, 209,
- 209, 209, 210, 210, 210, 211, 236, 236, 12, 211,
- 211, 212, 237, 237, 11, 212, 212, 213, 213, 213,
- 213, 213, 213, 213, 213, 213, 213, 213, 213, 213,
- 213, 217, 238, 238, 239, 239, 217, 217, 217, 220,
- 220, 220, 221, 221, 221, 221, 221, 221, 221, 221,
-
- 221, 221, 221, 221, 221, 221, 240, 240, 10, 9,
- 8, 7, 4, 3, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183, 183, 183,
- 183, 183, 183, 183, 183, 183, 183, 183
- } ;
-
-/* 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 "scan.l"
-
-#line 52 "scan.l"
-
-/* LCOV_EXCL_START */
-
-/* Avoid exit() on fatal scanner errors (a bit ugly -- see yy_fatal_error) */
-#undef fprintf
-#define fprintf(file, fmt, msg) fprintf_to_ereport(fmt, msg)
-
-static void
-fprintf_to_ereport(const char *fmt, const char *msg)
-{
- ereport(ERROR, (errmsg_internal("%s", msg)));
-}
-
-/*
- * GUC variables. This is a DIRECT violation of the warning given at the
- * head of gram.y, ie flex/bison code must not depend on any GUC variables;
- * as such, changing their values can induce very unintuitive behavior.
- * But we shall have to live with it until we can remove these variables.
- *
- * standard_conforming_strings is overridden by parser_set_param()
- * while connecting to backend by receiving parameter status message.
- */
-int backslash_quote = BACKSLASH_QUOTE_SAFE_ENCODING;
-bool escape_string_warning = true;
-bool standard_conforming_strings = true;
-
-/*
- * Constant data exported from this file. This array maps from the
- * zero-based keyword numbers returned by ScanKeywordLookup to the
- * Bison token numbers needed by gram.y. This is exported because
- * callers need to pass it to scanner_init, if they are using the
- * standard keyword list ScanKeywords.
- */
-#define PG_KEYWORD(kwname, value, category, collabel) value,
-
-const uint16 ScanKeywordTokens[] = {
-#include "kwlist.h"
-};
-
-#undef PG_KEYWORD
-
-/*
- * Set the type of YYSTYPE.
- */
-#define YYSTYPE core_YYSTYPE
-
-/*
- * Set the type of yyextra. All state variables used by the scanner should
- * be in yyextra, *not* statically allocated.
- */
-#define YY_EXTRA_TYPE core_yy_extra_type *
-
-/*
- * Each call to yylex must set yylloc to the location of the found token
- * (expressed as a byte offset from the start of the input text).
- * When we parse a token that requires multiple lexer rules to process,
- * this should be done in the first such rule, else yylloc will point
- * into the middle of the token.
- */
-#define SET_YYLLOC() (*(yylloc) = yytext - yyextra->scanbuf)
-
-/*
- * Advance yylloc by the given number of bytes.
- */
-#define ADVANCE_YYLLOC(delta) ( *(yylloc) += (delta) )
-
-/*
- * Sometimes, we do want yylloc to point into the middle of a token; this is
- * useful for instance to throw an error about an escape sequence within a
- * string literal. But if we find no error there, we want to revert yylloc
- * to the token start, so that that's the location reported to the parser.
- * Use PUSH_YYLLOC/POP_YYLLOC to save/restore yylloc around such code.
- * (Currently the implied "stack" is just one location, but someday we might
- * need to nest these.)
- */
-#define PUSH_YYLLOC() (yyextra->save_yylloc = *(yylloc))
-#define POP_YYLLOC() (*(yylloc) = yyextra->save_yylloc)
-
-#define startlit() ( yyextra->literallen = 0 )
-static void addlit(char *ytext, int yleng, core_yyscan_t yyscanner);
-static void addlitchar(unsigned char ychar, core_yyscan_t yyscanner);
-static char *litbufdup(core_yyscan_t yyscanner);
-static unsigned char unescape_single_char(unsigned char c, core_yyscan_t yyscanner);
-static int process_integer_literal(const char *token, YYSTYPE *lval);
-static void addunicode(pg_wchar c, yyscan_t yyscanner);
-
-#define yyerror(msg) scanner_yyerror(msg, yyscanner)
-
-#define lexer_errposition() scanner_errposition(*(yylloc), yyscanner)
-
-static void check_string_escape_warning(unsigned char ychar, core_yyscan_t yyscanner);
-static void check_escape_warning(core_yyscan_t yyscanner);
-
-/*
- * 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 core_yyget_column(yyscan_t yyscanner);
-extern void core_yyset_column(int column_no, yyscan_t yyscanner);
-
-#line 1019 "scan.c"
-#define YY_NO_INPUT 1
-/*
- * OK, here is a short description of lex/flex rules behavior.
- * The longest pattern which matches an input string is always chosen.
- * For equal-length patterns, the first occurring in the rules list is chosen.
- * INITIAL is the starting state, to which all non-conditional rules apply.
- * Exclusive states change parsing rules while the state is active. When in
- * an exclusive state, only those rules defined for that state apply.
- *
- * We use exclusive states for quoted strings, extended comments,
- * and to eliminate parsing troubles for numeric strings.
- * Exclusive states:
- * <xb> bit string literal
- * <xc> extended C-style comments
- * <xd> delimited identifiers (double-quoted identifiers)
- * <xh> hexadecimal byte string
- * <xq> standard quoted strings
- * <xqs> quote stop (detect continued strings)
- * <xe> extended quoted strings (support backslash escape sequences)
- * <xdolq> $foo$ quoted strings
- * <xui> quoted identifier with Unicode escapes
- * <xus> quoted string with Unicode escapes
- * <xeu> Unicode surrogate pair in extended quoted string
- *
- * Remember to add an <<EOF>> case whenever you add a new exclusive state!
- * The default one is probably not the right thing.
- */
-
-/*
- * In order to make the world safe for Windows and Mac clients as well as
- * Unix ones, we accept either \n or \r as a newline. A DOS-style \r\n
- * sequence will be seen as two successive newlines, but that doesn't cause
- * any problems. Comments that start with -- and extend to the next
- * newline are treated as equivalent to a single whitespace character.
- *
- * NOTE a fine point: if there is no newline following --, we will absorb
- * everything to the end of the input as a comment. This is correct. Older
- * versions of Postgres failed to recognize -- as a comment if the input
- * did not end with a newline.
- *
- * XXX perhaps \f (formfeed) should be treated as a newline as well?
- *
- * XXX if you change the set of whitespace characters, fix scanner_isspace()
- * to agree.
- */
-/*
- * SQL requires at least one newline in the whitespace separating
- * string literals that are to be concatenated. Silly, but who are we
- * to argue? Note that {whitespace_with_newline} should not have * after
- * it, whereas {whitespace} should generally have a * after it...
- */
-/* If we see {quote} then {quotecontinue}, the quoted string continues */
-/*
- * {quotecontinuefail} is needed to avoid lexer backup when we fail to match
- * {quotecontinue}. It might seem that this could just be {whitespace}*,
- * but if there's a dash after {whitespace_with_newline}, it must be consumed
- * to see if there's another dash --- which would start a {comment} and thus
- * allow continuation of the {quotecontinue} token.
- */
-/* Bit string
- * It is tempting to scan the string for only those characters
- * which are allowed. However, this leads to silently swallowed
- * characters if illegal characters are included in the string.
- * For example, if xbinside is [01] then B'ABCD' is interpreted
- * as a zero-length string, and the ABCD' is lost!
- * Better to pass the string forward and let the input routines
- * validate the contents.
- */
-/* Hexadecimal byte string */
-/* National character */
-/* Quoted string that allows backslash escapes */
-/* Extended quote
- * xqdouble implements embedded quote, ''''
- */
-/* $foo$ style quotes ("dollar quoting")
- * The quoted string starts with $foo$ where "foo" is an optional string
- * in the form of an identifier, except that it may not contain "$",
- * and extends to the first occurrence of an identical string.
- * There is *no* processing of the quoted text.
- *
- * {dolqfailed} is an error rule to avoid scanner backup when {dolqdelim}
- * fails to match its trailing "$".
- */
-/* Double quote
- * Allows embedded spaces and other special characters into identifiers.
- */
-/* Quoted identifier with Unicode escapes */
-/* Quoted string with Unicode escapes */
-/* error rule to avoid backup */
-/* C-style comments
- *
- * The "extended comment" syntax closely resembles allowable operator syntax.
- * The tricky part here is to get lex to recognize a string starting with
- * slash-star as a comment, when interpreting it as an operator would produce
- * a longer match --- remember lex will prefer a longer match! Also, if we
- * have something like plus-slash-star, lex will think this is a 3-character
- * operator whereas we want to see it as a + operator and a comment start.
- * The solution is two-fold:
- * 1. append {op_chars}* to xcstart so that it matches as much text as
- * {operator} would. Then the tie-breaker (first matching rule of same
- * length) ensures xcstart wins. We put back the extra stuff with yyless()
- * in case it contains a star-slash that should terminate the comment.
- * 2. In the operator rule, check for slash-star within the operator, and
- * if found throw it back with yyless(). This handles the plus-slash-star
- * problem.
- * Dash-dash comments have similar interactions with the operator rule.
- */
-/* Assorted special-case operators and operator-like tokens */
-/*
- * These operator-like tokens (unlike the above ones) also match the {operator}
- * rule, which means that they might be overridden by a longer match if they
- * are followed by a comment start or a + or - character. Accordingly, if you
- * add to this list, you must also add corresponding code to the {operator}
- * block to return the correct token in such cases. (This is not needed in
- * psqlscan.l since the token value is ignored there.)
- */
-/*
- * "self" is the set of chars that should be returned as single-character
- * tokens. "op_chars" is the set of chars that can make up "Op" tokens,
- * which can be one or more characters long (but if a single-char token
- * appears in the "self" set, it is not to be returned as an Op). Note
- * that the sets overlap, but each has some chars that are not in the other.
- *
- * If you change either set, adjust the character lists appearing in the
- * rule for "operator"!
- */
-/*
- * Numbers
- *
- * Unary minus is not part of a number here. Instead we pass it separately to
- * the parser, and there it gets coerced via doNegate().
- *
- * {decimalfail} is used because we would like "1..10" to lex as 1, dot_dot, 10.
- *
- * {realfail} is added to prevent the need for scanner
- * backup when the {real} rule fails to match completely.
- */
-/*
- * Dollar quoted strings are totally opaque, and no escaping is done on them.
- * Other quoted strings must allow some special characters such as single-quote
- * and newline.
- * Embedded single-quotes are implemented both in the SQL standard
- * style of two adjacent single quotes "''" and in the Postgres/Java style
- * of escaped-quote "\'".
- * Other embedded escaped characters are matched explicitly and the leading
- * backslash is dropped from the string.
- * Note that xcstart must appear before operator, as explained above!
- * Also whitespace (comment) must appear before operator.
- */
-#line 1169 "scan.c"
-
-#define INITIAL 0
-#define xb 1
-#define xc 2
-#define xd 3
-#define xh 4
-#define xq 5
-#define xqs 6
-#define xe 7
-#define xdolq 8
-#define xui 9
-#define xus 10
-#define xeu 11
-
-#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;
-
- 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 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 );
-
- YYLTYPE *yyget_lloc ( yyscan_t yyscanner );
-
- void yyset_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 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, YYLTYPE * yylloc_param , yyscan_t yyscanner);
-
-#define YY_DECL int yylex \
- (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 /*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;
-
- 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 ) {
- yyensure_buffer_stack (yyscanner);
- YY_CURRENT_BUFFER_LVALUE =
- yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner);
- }
-
- yy_load_buffer_state( yyscanner );
- }
-
- {
-#line 431 "scan.l"
-
-
-#line 1465 "scan.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 >= 184 )
- yy_c = yy_meta[yy_c];
- }
- yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
- ++yy_cp;
- }
- while ( yy_current_state != 183 );
- 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:
-/* rule 1 can match eol */
-YY_RULE_SETUP
-#line 433 "scan.l"
-{
- /* ignore */
- }
- YY_BREAK
-case 2:
-YY_RULE_SETUP
-#line 437 "scan.l"
-{
- /* Set location in case of syntax error in comment */
- SET_YYLLOC();
- yyextra->xcdepth = 0;
- BEGIN(xc);
- /* Put back any characters past slash-star; see above */
- yyless(2);
- }
- YY_BREAK
-
-case 3:
-YY_RULE_SETUP
-#line 447 "scan.l"
-{
- (yyextra->xcdepth)++;
- /* Put back any characters past slash-star; see above */
- yyless(2);
- }
- YY_BREAK
-case 4:
-YY_RULE_SETUP
-#line 453 "scan.l"
-{
- if (yyextra->xcdepth <= 0)
- BEGIN(INITIAL);
- else
- (yyextra->xcdepth)--;
- }
- YY_BREAK
-case 5:
-/* rule 5 can match eol */
-YY_RULE_SETUP
-#line 460 "scan.l"
-{
- /* ignore */
- }
- YY_BREAK
-case 6:
-YY_RULE_SETUP
-#line 464 "scan.l"
-{
- /* ignore */
- }
- YY_BREAK
-case 7:
-YY_RULE_SETUP
-#line 468 "scan.l"
-{
- /* ignore */
- }
- YY_BREAK
-case YY_STATE_EOF(xc):
-#line 472 "scan.l"
-{
- yyerror("unterminated /* comment");
- }
- YY_BREAK
-/* <xc> */
-case 8:
-YY_RULE_SETUP
-#line 477 "scan.l"
-{
- /* Binary bit type.
- * At some point we should simply pass the string
- * forward to the parser and label it there.
- * In the meantime, place a leading "b" on the string
- * to mark it for the input routine as a binary string.
- */
- SET_YYLLOC();
- BEGIN(xb);
- startlit();
- addlitchar('b', yyscanner);
- }
- YY_BREAK
-case 9:
-/* rule 9 can match eol */
-#line 490 "scan.l"
-case 10:
-/* rule 10 can match eol */
-YY_RULE_SETUP
-#line 490 "scan.l"
-{
- addlit(yytext, yyleng, yyscanner);
- }
- YY_BREAK
-case YY_STATE_EOF(xb):
-#line 493 "scan.l"
-{ yyerror("unterminated bit string literal"); }
- YY_BREAK
-case 11:
-YY_RULE_SETUP
-#line 495 "scan.l"
-{
- /* Hexadecimal bit type.
- * At some point we should simply pass the string
- * forward to the parser and label it there.
- * In the meantime, place a leading "x" on the string
- * to mark it for the input routine as a hex string.
- */
- SET_YYLLOC();
- BEGIN(xh);
- startlit();
- addlitchar('x', yyscanner);
- }
- YY_BREAK
-case YY_STATE_EOF(xh):
-#line 507 "scan.l"
-{ yyerror("unterminated hexadecimal string literal"); }
- YY_BREAK
-case 12:
-YY_RULE_SETUP
-#line 509 "scan.l"
-{
- /* National character.
- * We will pass this along as a normal character string,
- * but preceded with an internally-generated "NCHAR".
- */
- int kwnum;
-
- SET_YYLLOC();
- yyless(1); /* eat only 'n' this time */
-
- kwnum = ScanKeywordLookup("nchar",
- yyextra->keywordlist);
- if (kwnum >= 0)
- {
- yylval->keyword = GetScanKeyword(kwnum,
- yyextra->keywordlist);
- return yyextra->keyword_tokens[kwnum];
- }
- else
- {
- /* If NCHAR isn't a keyword, just return "n" */
- yylval->str = pstrdup("n");
- return IDENT;
- }
- }
- YY_BREAK
-case 13:
-YY_RULE_SETUP
-#line 535 "scan.l"
-{
- yyextra->warn_on_first_escape = true;
- yyextra->saw_non_ascii = false;
- SET_YYLLOC();
- if (yyextra->standard_conforming_strings)
- BEGIN(xq);
- else
- BEGIN(xe);
- startlit();
- }
- YY_BREAK
-case 14:
-YY_RULE_SETUP
-#line 545 "scan.l"
-{
- yyextra->warn_on_first_escape = false;
- yyextra->saw_non_ascii = false;
- SET_YYLLOC();
- BEGIN(xe);
- startlit();
- }
- YY_BREAK
-case 15:
-YY_RULE_SETUP
-#line 552 "scan.l"
-{
- SET_YYLLOC();
- if (!yyextra->standard_conforming_strings)
- ereport(ERROR,
- (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
- errmsg("unsafe use of string constant with Unicode escapes"),
- errdetail("String constants with Unicode escapes cannot be used when standard_conforming_strings is off."),
- lexer_errposition()));
- BEGIN(xus);
- startlit();
- }
- YY_BREAK
-case 16:
-YY_RULE_SETUP
-#line 564 "scan.l"
-{
- /*
- * When we are scanning a quoted string and see an end
- * quote, we must look ahead for a possible continuation.
- * If we don't see one, we know the end quote was in fact
- * the end of the string. To reduce the lexer table size,
- * we use a single "xqs" state to do the lookahead for all
- * types of strings.
- */
- yyextra->state_before_str_stop = YYSTATE;
- BEGIN(xqs);
- }
- YY_BREAK
-case 17:
-/* rule 17 can match eol */
-YY_RULE_SETUP
-#line 576 "scan.l"
-{
- /*
- * Found a quote continuation, so return to the in-quote
- * state and continue scanning the literal. Nothing is
- * added to the literal's contents.
- */
- BEGIN(yyextra->state_before_str_stop);
- }
- YY_BREAK
-case 18:
-/* rule 18 can match eol */
-#line 585 "scan.l"
-case 19:
-/* rule 19 can match eol */
-#line 586 "scan.l"
-YY_RULE_SETUP
-case YY_STATE_EOF(xqs):
-#line 586 "scan.l"
-{
- /*
- * Failed to see a quote continuation. Throw back
- * everything after the end quote, and handle the string
- * according to the state we were in previously.
- */
- yyless(0);
- BEGIN(INITIAL);
-
- switch (yyextra->state_before_str_stop)
- {
- case xb:
- yylval->str = litbufdup(yyscanner);
- return BCONST;
- case xh:
- yylval->str = litbufdup(yyscanner);
- return XCONST;
- case xq:
- case xe:
- /*
- * Check that the data remains valid, if it might
- * have been made invalid by unescaping any chars.
- */
- if (yyextra->saw_non_ascii)
- pg_verifymbstr(yyextra->literalbuf,
- yyextra->literallen,
- false);
- yylval->str = litbufdup(yyscanner);
- return SCONST;
- case xus:
- yylval->str = litbufdup(yyscanner);
- return USCONST;
- default:
- yyerror("unhandled previous state in xqs");
- }
- }
- YY_BREAK
-case 20:
-YY_RULE_SETUP
-#line 623 "scan.l"
-{
- addlitchar('\'', yyscanner);
- }
- YY_BREAK
-case 21:
-/* rule 21 can match eol */
-YY_RULE_SETUP
-#line 626 "scan.l"
-{
- addlit(yytext, yyleng, yyscanner);
- }
- YY_BREAK
-case 22:
-/* rule 22 can match eol */
-YY_RULE_SETUP
-#line 629 "scan.l"
-{
- addlit(yytext, yyleng, yyscanner);
- }
- YY_BREAK
-case 23:
-YY_RULE_SETUP
-#line 632 "scan.l"
-{
- pg_wchar c = strtoul(yytext + 2, NULL, 16);
-
- /*
- * For consistency with other productions, issue any
- * escape warning with cursor pointing to start of string.
- * We might want to change that, someday.
- */
- check_escape_warning(yyscanner);
-
- /* Remember start of overall string token ... */
- PUSH_YYLLOC();
- /* ... and set the error cursor to point at this esc seq */
- SET_YYLLOC();
-
- if (is_utf16_surrogate_first(c))
- {
- yyextra->utf16_first_part = c;
- BEGIN(xeu);
- }
- else if (is_utf16_surrogate_second(c))
- yyerror("invalid Unicode surrogate pair");
- else
- addunicode(c, yyscanner);
-
- /* Restore yylloc to be start of string token */
- POP_YYLLOC();
- }
- YY_BREAK
-case 24:
-YY_RULE_SETUP
-#line 660 "scan.l"
-{
- pg_wchar c = strtoul(yytext + 2, NULL, 16);
-
- /* Remember start of overall string token ... */
- PUSH_YYLLOC();
- /* ... and set the error cursor to point at this esc seq */
- SET_YYLLOC();
-
- if (!is_utf16_surrogate_second(c))
- yyerror("invalid Unicode surrogate pair");
-
- c = surrogate_pair_to_codepoint(yyextra->utf16_first_part, c);
-
- addunicode(c, yyscanner);
-
- /* Restore yylloc to be start of string token */
- POP_YYLLOC();
-
- BEGIN(xe);
- }
- YY_BREAK
-case 25:
-#line 681 "scan.l"
-case 26:
-/* rule 26 can match eol */
-#line 682 "scan.l"
-YY_RULE_SETUP
-case YY_STATE_EOF(xeu):
-#line 682 "scan.l"
-{
- /* Set the error cursor to point at missing esc seq */
- SET_YYLLOC();
- yyerror("invalid Unicode surrogate pair");
- }
- YY_BREAK
-case 27:
-YY_RULE_SETUP
-#line 687 "scan.l"
-{
- /* Set the error cursor to point at malformed esc seq */
- SET_YYLLOC();
- ereport(ERROR,
- (errcode(ERRCODE_INVALID_ESCAPE_SEQUENCE),
- errmsg("invalid Unicode escape"),
- errhint("Unicode escapes must be \\uXXXX or \\UXXXXXXXX."),
- lexer_errposition()));
- }
- YY_BREAK
-case 28:
-/* rule 28 can match eol */
-YY_RULE_SETUP
-#line 696 "scan.l"
-{
-#ifdef PGPOOL_NOT_USED
- if (yytext[1] == '\'')
- {
- if (yyextra->backslash_quote == BACKSLASH_QUOTE_OFF ||
- (yyextra->backslash_quote == BACKSLASH_QUOTE_SAFE_ENCODING &&
- PG_ENCODING_IS_CLIENT_ONLY(pg_get_client_encoding())))
- ereport(ERROR,
- (errcode(ERRCODE_NONSTANDARD_USE_OF_ESCAPE_CHARACTER),
- errmsg("unsafe use of \\' in a string literal"),
- errhint("Use '' to write quotes in strings. \\' is insecure in client-only encodings."),
- lexer_errposition()));
- }
-#endif
- check_string_escape_warning(yytext[1], yyscanner);
- addlitchar(unescape_single_char(yytext[1], yyscanner),
- yyscanner);
- }
- YY_BREAK
-case 29:
-YY_RULE_SETUP
-#line 714 "scan.l"
-{
- unsigned char c = strtoul(yytext + 1, NULL, 8);
-
- check_escape_warning(yyscanner);
- addlitchar(c, yyscanner);
- if (c == '\0' || IS_HIGHBIT_SET(c))
- yyextra->saw_non_ascii = true;
- }
- YY_BREAK
-case 30:
-YY_RULE_SETUP
-#line 722 "scan.l"
-{
- unsigned char c = strtoul(yytext + 2, NULL, 16);
-
- check_escape_warning(yyscanner);
- addlitchar(c, yyscanner);
- if (c == '\0' || IS_HIGHBIT_SET(c))
- yyextra->saw_non_ascii = true;
- }
- YY_BREAK
-case 31:
-YY_RULE_SETUP
-#line 730 "scan.l"
-{
- /* This is only needed for \ just before EOF */
- addlitchar(yytext[0], yyscanner);
- }
- YY_BREAK
-case YY_STATE_EOF(xq):
-case YY_STATE_EOF(xe):
-case YY_STATE_EOF(xus):
-#line 734 "scan.l"
-{ yyerror("unterminated quoted string"); }
- YY_BREAK
-case 32:
-YY_RULE_SETUP
-#line 736 "scan.l"
-{
- SET_YYLLOC();
- yyextra->dolqstart = pstrdup(yytext);
- BEGIN(xdolq);
- startlit();
- }
- YY_BREAK
-case 33:
-YY_RULE_SETUP
-#line 742 "scan.l"
-{
- SET_YYLLOC();
- /* throw back all but the initial "$" */
- yyless(1);
- /* and treat it as {other} */
- return yytext[0];
- }
- YY_BREAK
-case 34:
-YY_RULE_SETUP
-#line 749 "scan.l"
-{
- if (strcmp(yytext, yyextra->dolqstart) == 0)
- {
- pfree(yyextra->dolqstart);
- yyextra->dolqstart = NULL;
- BEGIN(INITIAL);
- yylval->str = litbufdup(yyscanner);
- return SCONST;
- }
- else
- {
- /*
- * When we fail to match $...$ to dolqstart, transfer
- * the $... part to the output, but put back the final
- * $ for rescanning. Consider $delim$...$junk$delim$
- */
- addlit(yytext, yyleng - 1, yyscanner);
- yyless(yyleng - 1);
- }
- }
- YY_BREAK
-case 35:
-/* rule 35 can match eol */
-YY_RULE_SETUP
-#line 769 "scan.l"
-{
- addlit(yytext, yyleng, yyscanner);
- }
- YY_BREAK
-case 36:
-YY_RULE_SETUP
-#line 772 "scan.l"
-{
- addlit(yytext, yyleng, yyscanner);
- }
- YY_BREAK
-case 37:
-YY_RULE_SETUP
-#line 775 "scan.l"
-{
- /* This is only needed for $ inside the quoted text */
- addlitchar(yytext[0], yyscanner);
- }
- YY_BREAK
-case YY_STATE_EOF(xdolq):
-#line 779 "scan.l"
-{ yyerror("unterminated dollar-quoted string"); }
- YY_BREAK
-case 38:
-YY_RULE_SETUP
-#line 781 "scan.l"
-{
- SET_YYLLOC();
- BEGIN(xd);
- startlit();
- }
- YY_BREAK
-case 39:
-YY_RULE_SETUP
-#line 786 "scan.l"
-{
- SET_YYLLOC();
- BEGIN(xui);
- startlit();
- }
- YY_BREAK
-case 40:
-YY_RULE_SETUP
-#line 791 "scan.l"
-{
- char *ident;
-
- BEGIN(INITIAL);
- if (yyextra->literallen == 0)
- yyerror("zero-length delimited identifier");
- ident = litbufdup(yyscanner);
- if (yyextra->literallen >= NAMEDATALEN)
- truncate_identifier(ident, yyextra->literallen, true);
- yylval->str = ident;
- return IDENT;
- }
- YY_BREAK
-case 41:
-YY_RULE_SETUP
-#line 803 "scan.l"
-{
- BEGIN(INITIAL);
- if (yyextra->literallen == 0)
- yyerror("zero-length delimited identifier");
- /* can't truncate till after we de-escape the ident */
- yylval->str = litbufdup(yyscanner);
- return UIDENT;
- }
- YY_BREAK
-case 42:
-YY_RULE_SETUP
-#line 811 "scan.l"
-{
- addlitchar('"', yyscanner);
- }
- YY_BREAK
-case 43:
-/* rule 43 can match eol */
-YY_RULE_SETUP
-#line 814 "scan.l"
-{
- addlit(yytext, yyleng, yyscanner);
- }
- YY_BREAK
-case YY_STATE_EOF(xd):
-case YY_STATE_EOF(xui):
-#line 817 "scan.l"
-{ yyerror("unterminated quoted identifier"); }
- YY_BREAK
-case 44:
-YY_RULE_SETUP
-#line 819 "scan.l"
-{
- char *ident;
-
- SET_YYLLOC();
- /* throw back all but the initial u/U */
- yyless(1);
- /* and treat it as {identifier} */
- ident = downcase_truncate_identifier(yytext, yyleng, true);
- yylval->str = ident;
- return IDENT;
- }
- YY_BREAK
-case 45:
-YY_RULE_SETUP
-#line 831 "scan.l"
-{
- SET_YYLLOC();
- return TYPECAST;
- }
- YY_BREAK
-case 46:
-YY_RULE_SETUP
-#line 836 "scan.l"
-{
- SET_YYLLOC();
- return DOT_DOT;
- }
- YY_BREAK
-case 47:
-YY_RULE_SETUP
-#line 841 "scan.l"
-{
- SET_YYLLOC();
- return COLON_EQUALS;
- }
- YY_BREAK
-case 48:
-YY_RULE_SETUP
-#line 846 "scan.l"
-{
- SET_YYLLOC();
- return EQUALS_GREATER;
- }
- YY_BREAK
-case 49:
-YY_RULE_SETUP
-#line 851 "scan.l"
-{
- SET_YYLLOC();
- return LESS_EQUALS;
- }
- YY_BREAK
-case 50:
-YY_RULE_SETUP
-#line 856 "scan.l"
-{
- SET_YYLLOC();
- return GREATER_EQUALS;
- }
- YY_BREAK
-case 51:
-YY_RULE_SETUP
-#line 861 "scan.l"
-{
- /* We accept both "<>" and "!=" as meaning NOT_EQUALS */
- SET_YYLLOC();
- return NOT_EQUALS;
- }
- YY_BREAK
-case 52:
-YY_RULE_SETUP
-#line 867 "scan.l"
-{
- /* We accept both "<>" and "!=" as meaning NOT_EQUALS */
- SET_YYLLOC();
- return NOT_EQUALS;
- }
- YY_BREAK
-case 53:
-YY_RULE_SETUP
-#line 873 "scan.l"
-{
- SET_YYLLOC();
- return yytext[0];
- }
- YY_BREAK
-case 54:
-YY_RULE_SETUP
-#line 878 "scan.l"
-{
- /*
- * Check for embedded slash-star or dash-dash; those
- * are comment starts, so operator must stop there.
- * Note that slash-star or dash-dash at the first
- * character will match a prior rule, not this one.
- */
- int nchars = yyleng;
- char *slashstar = strstr(yytext, "/*");
- char *dashdash = strstr(yytext, "--");
-
- if (slashstar && dashdash)
- {
- /* if both appear, take the first one */
- if (slashstar > dashdash)
- slashstar = dashdash;
- }
- else if (!slashstar)
- slashstar = dashdash;
- if (slashstar)
- nchars = slashstar - yytext;
-
- /*
- * For SQL compatibility, '+' and '-' cannot be the
- * last char of a multi-char operator unless the operator
- * contains chars that are not in SQL operators.
- * The idea is to lex '=-' as two operators, but not
- * to forbid operator names like '?-' that could not be
- * sequences of SQL operators.
- */
- if (nchars > 1 &&
- (yytext[nchars - 1] == '+' ||
- yytext[nchars - 1] == '-'))
- {
- int ic;
-
- for (ic = nchars - 2; ic >= 0; ic--)
- {
- char c = yytext[ic];
- if (c == '~' || c == '!' || c == '@' ||
- c == '#' || c == '^' || c == '&' ||
- c == '|' || c == '`' || c == '?' ||
- c == '%')
- break;
- }
- if (ic < 0)
- {
- /*
- * didn't find a qualifying character, so remove
- * all trailing [+-]
- */
- do {
- nchars--;
- } while (nchars > 1 &&
- (yytext[nchars - 1] == '+' ||
- yytext[nchars - 1] == '-'));
- }
- }
-
- SET_YYLLOC();
-
- if (nchars < yyleng)
- {
- /* Strip the unwanted chars from the token */
- yyless(nchars);
- /*
- * If what we have left is only one char, and it's
- * one of the characters matching "self", then
- * return it as a character token the same way
- * that the "self" rule would have.
- */
- if (nchars == 1 &&
- strchr(",()[].;:+-*/%^<>=", yytext[0]))
- return yytext[0];
- /*
- * Likewise, if what we have left is two chars, and
- * those match the tokens ">=", "<=", "=>", "<>" or
- * "!=", then we must return the appropriate token
- * rather than the generic Op.
- */
- if (nchars == 2)
- {
- if (yytext[0] == '=' && yytext[1] == '>')
- return EQUALS_GREATER;
- if (yytext[0] == '>' && yytext[1] == '=')
- return GREATER_EQUALS;
- if (yytext[0] == '<' && yytext[1] == '=')
- return LESS_EQUALS;
- if (yytext[0] == '<' && yytext[1] == '>')
- return NOT_EQUALS;
- if (yytext[0] == '!' && yytext[1] == '=')
- return NOT_EQUALS;
- }
- }
-
- /*
- * Complain if operator is too long. Unlike the case
- * for identifiers, we make this an error not a notice-
- * and-truncate, because the odds are we are looking at
- * a syntactic mistake anyway.
- */
- if (nchars >= NAMEDATALEN)
- yyerror("operator too long");
-
- yylval->str = pstrdup(yytext);
- return Op;
- }
- YY_BREAK
-case 55:
-YY_RULE_SETUP
-#line 986 "scan.l"
-{
- SET_YYLLOC();
- yylval->ival = atol(yytext + 1);
- return PARAM;
- }
- YY_BREAK
-case 56:
-YY_RULE_SETUP
-#line 991 "scan.l"
-{
- SET_YYLLOC();
- yyerror("trailing junk after parameter");
- }
- YY_BREAK
-case 57:
-YY_RULE_SETUP
-#line 996 "scan.l"
-{
- SET_YYLLOC();
- return process_integer_literal(yytext, yylval);
- }
- YY_BREAK
-case 58:
-YY_RULE_SETUP
-#line 1000 "scan.l"
-{
- SET_YYLLOC();
- yylval->str = pstrdup(yytext);
- return FCONST;
- }
- YY_BREAK
-case 59:
-YY_RULE_SETUP
-#line 1005 "scan.l"
-{
- /* throw back the .., and treat as integer */
- yyless(yyleng - 2);
- SET_YYLLOC();
- return process_integer_literal(yytext, yylval);
- }
- YY_BREAK
-case 60:
-YY_RULE_SETUP
-#line 1011 "scan.l"
-{
- SET_YYLLOC();
- yylval->str = pstrdup(yytext);
- return FCONST;
- }
- YY_BREAK
-case 61:
-YY_RULE_SETUP
-#line 1016 "scan.l"
-{
- SET_YYLLOC();
- yyerror("trailing junk after numeric literal");
- }
- YY_BREAK
-case 62:
-YY_RULE_SETUP
-#line 1020 "scan.l"
-{
- SET_YYLLOC();
- yyerror("trailing junk after numeric literal");
- }
- YY_BREAK
-case 63:
-YY_RULE_SETUP
-#line 1024 "scan.l"
-{
- SET_YYLLOC();
- yyerror("trailing junk after numeric literal");
- }
- YY_BREAK
-case 64:
-YY_RULE_SETUP
-#line 1028 "scan.l"
-{
- SET_YYLLOC();
- yyerror("trailing junk after numeric literal");
- }
- YY_BREAK
-case 65:
-YY_RULE_SETUP
-#line 1034 "scan.l"
-{
- int kwnum;
- char *ident;
-
- SET_YYLLOC();
-
- /* Is it a keyword? */
- kwnum = ScanKeywordLookup(yytext,
- yyextra->keywordlist);
- if (kwnum >= 0)
- {
- yylval->keyword = GetScanKeyword(kwnum,
- yyextra->keywordlist);
- return yyextra->keyword_tokens[kwnum];
- }
-
- /*
- * No. Convert the identifier to lower case, and truncate
- * if necessary.
- */
- ident = downcase_truncate_identifier(yytext, yyleng, true);
- yylval->str = ident;
- return IDENT;
- }
- YY_BREAK
-case 66:
-YY_RULE_SETUP
-#line 1059 "scan.l"
-{
- SET_YYLLOC();
- return yytext[0];
- }
- YY_BREAK
-case YY_STATE_EOF(INITIAL):
-#line 1064 "scan.l"
-{
- SET_YYLLOC();
- yyterminate();
- }
- YY_BREAK
-case 67:
-YY_RULE_SETUP
-#line 1069 "scan.l"
-YY_FATAL_ERROR( "flex scanner jammed" );
- YY_BREAK
-#line 2420 "scan.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 >= 184 )
- 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 >= 184 )
- yy_c = yy_meta[yy_c];
- }
- yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
- yy_is_jam = (yy_current_state == 183);
-
- (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;
-}
-
-YYLTYPE *yyget_lloc (yyscan_t yyscanner)
-{
- struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
- return yylloc;
-}
-
-void yyset_lloc (YYLTYPE * yylloc_param , yyscan_t yyscanner)
-{
- struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
- yylloc = yylloc_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
-
-#define YYTABLES_NAME "yytables"
-
-#line 1069 "scan.l"
-
-
-/* LCOV_EXCL_STOP */
-
-/*
- * Arrange access to yyextra for subroutines of the main yylex() function.
- * We expect each subroutine to have a yyscanner parameter. Rather than
- * use the yyget_xxx functions, which might or might not get inlined by the
- * compiler, we cheat just a bit and cast yyscanner to the right type.
- */
-#undef yyextra
-#define yyextra (((struct yyguts_t *) yyscanner)->yyextra_r)
-
-/* Likewise for a couple of other things we need. */
-#undef yylloc
-#define yylloc (((struct yyguts_t *) yyscanner)->yylloc_r)
-#undef yyleng
-#define yyleng (((struct yyguts_t *) yyscanner)->yyleng_r)
-
-
-/*
- * scanner_errposition
- * Report a lexer or grammar error cursor position, if possible.
- *
- * This is expected to be used within an ereport() call, or via an error
- * callback such as setup_scanner_errposition_callback(). The return value
- * is a dummy (always 0, in fact).
- *
- * Note that this can only be used for messages emitted during raw parsing
- * (essentially, scan.l, parser.c, and gram.y), since it requires the
- * yyscanner struct to still be available.
- */
-int
-scanner_errposition(int location, core_yyscan_t yyscanner)
-{
-#ifdef PGPOOL_NOT_USED
- int pos;
-
- if (location < 0)
- return 0; /* no-op if location is unknown */
-
- /* Convert byte offset to character number */
- pos = pg_mbstrlen_with_len(yyextra->scanbuf, location) + 1;
- /* And pass it to the ereport mechanism */
- return errposition(pos);
-#endif
- return 0;
-}
-
-/*
- * Error context callback for inserting scanner error location.
- *
- * Note that this will be called for *any* error occurring while the
- * callback is installed. We avoid inserting an irrelevant error location
- * if the error is a query cancel --- are there any other important cases?
- */
-static void
-scb_error_callback(void *arg)
-{
-#ifdef PGPOOL_NOT_USED
- ScannerCallbackState *scbstate = (ScannerCallbackState *) arg;
-
- if (geterrcode() != ERRCODE_QUERY_CANCELED)
- (void) scanner_errposition(scbstate->location, scbstate->yyscanner);
-#endif
-}
-
-/*
- * setup_scanner_errposition_callback
- * Arrange for non-scanner errors to report an error position
- *
- * Sometimes the scanner calls functions that aren't part of the scanner
- * subsystem and can't reasonably be passed the yyscanner pointer; yet
- * we would like any errors thrown in those functions to be tagged with an
- * error location. Use this function to set up an error context stack
- * entry that will accomplish that. Usage pattern:
- *
- * declare a local variable "ScannerCallbackState scbstate"
- * ...
- * setup_scanner_errposition_callback(&scbstate, yyscanner, location);
- * call function that might throw error;
- * cancel_scanner_errposition_callback(&scbstate);
- */
-void
-setup_scanner_errposition_callback(ScannerCallbackState *scbstate,
- core_yyscan_t yyscanner,
- int location)
-{
- /* Setup error traceback support for ereport() */
- scbstate->yyscanner = yyscanner;
- scbstate->location = location;
- scbstate->errcallback.callback = scb_error_callback;
- scbstate->errcallback.arg = (void *) scbstate;
- scbstate->errcallback.previous = error_context_stack;
- error_context_stack = &scbstate->errcallback;
-}
-
-/*
- * Cancel a previously-set-up errposition callback.
- */
-void
-cancel_scanner_errposition_callback(ScannerCallbackState *scbstate)
-{
- /* Pop the error context stack */
- error_context_stack = scbstate->errcallback.previous;
-}
-
-/*
- * scanner_yyerror
- * Report a lexer or grammar error.
- *
- * The message's cursor position is whatever YYLLOC was last set to,
- * ie, the start of the current token if called within yylex(), or the
- * most recently lexed token if called from the grammar.
- * This is OK for syntax error messages from the Bison parser, because Bison
- * parsers report error as soon as the first unparsable token is reached.
- * Beware of using yyerror for other purposes, as the cursor position might
- * be misleading!
- */
-void
-scanner_yyerror(const char *message, core_yyscan_t yyscanner)
-{
- const char *loc = yyextra->scanbuf + *yylloc;
-
- if (*loc == YY_END_OF_BUFFER_CHAR)
- {
- ereport(ERROR,
- (errcode(ERRCODE_SYNTAX_ERROR),
- /* translator: %s is typically the translation of "syntax error" */
- errmsg("%s at end of input", _(message)),
- lexer_errposition()));
- }
- else
- {
- ereport(ERROR,
- (errcode(ERRCODE_SYNTAX_ERROR),
- /* translator: first %s is typically the translation of "syntax error" */
- errmsg("%s at or near \"%s\"", _(message), loc),
- lexer_errposition()));
- }
-}
-
-
-/*
- * Called before any actual parsing is done
- */
-core_yyscan_t
-scanner_init(const char *str,
- int slen,
- core_yy_extra_type *yyext,
- const ScanKeywordList *keywordlist,
- const uint16 *keyword_tokens)
-{
- yyscan_t scanner;
-
- if (yylex_init(&scanner) != 0)
- elog(ERROR, "yylex_init() failed: %m");
-
- core_yyset_extra(yyext, scanner);
-
- yyext->keywordlist = keywordlist;
- yyext->keyword_tokens = keyword_tokens;
-
- yyext->backslash_quote = backslash_quote;
- yyext->escape_string_warning = escape_string_warning;
- yyext->standard_conforming_strings = standard_conforming_strings;
-
- /*
- * Make a scan buffer with special termination needed by flex.
- */
- yyext->scanbuf = (char *) palloc(slen + 2);
- yyext->scanbuflen = slen;
- memcpy(yyext->scanbuf, str, slen);
- yyext->scanbuf[slen] = yyext->scanbuf[slen + 1] = YY_END_OF_BUFFER_CHAR;
- yy_scan_buffer(yyext->scanbuf, slen + 2, scanner);
-
- /* initialize literal buffer to a reasonable but expansible size */
- yyext->literalalloc = 1024;
- yyext->literalbuf = (char *) palloc(yyext->literalalloc);
- yyext->literallen = 0;
-
- return scanner;
-}
-
-
-/*
- * Called after parsing is done to clean up after scanner_init()
- */
-void
-scanner_finish(core_yyscan_t yyscanner)
-{
- /*
- * We don't bother to call yylex_destroy(), because all it would do is
- * pfree a small amount of control storage. It's cheaper to leak the
- * storage until the parsing context is destroyed. The amount of space
- * involved is usually negligible compared to the output parse tree
- * anyway.
- *
- * We do bother to pfree the scanbuf and literal buffer, but only if they
- * represent a nontrivial amount of space. The 8K cutoff is arbitrary.
- */
- if (yyextra->scanbuflen >= 8192)
- pfree(yyextra->scanbuf);
- if (yyextra->literalalloc >= 8192)
- pfree(yyextra->literalbuf);
-}
-
-
-static void
-addlit(char *ytext, int yleng, core_yyscan_t yyscanner)
-{
- /* enlarge buffer if needed */
- if ((yyextra->literallen + yleng) >= yyextra->literalalloc)
- {
- do
- {
- yyextra->literalalloc *= 2;
- } while ((yyextra->literallen + yleng) >= yyextra->literalalloc);
- yyextra->literalbuf = (char *) repalloc(yyextra->literalbuf,
- yyextra->literalalloc);
- }
- /* append new data */
- memcpy(yyextra->literalbuf + yyextra->literallen, ytext, yleng);
- yyextra->literallen += yleng;
-}
-
-
-static void
-addlitchar(unsigned char ychar, core_yyscan_t yyscanner)
-{
- /* enlarge buffer if needed */
- if ((yyextra->literallen + 1) >= yyextra->literalalloc)
- {
- yyextra->literalalloc *= 2;
- yyextra->literalbuf = (char *) repalloc(yyextra->literalbuf,
- yyextra->literalalloc);
- }
- /* append new data */
- yyextra->literalbuf[yyextra->literallen] = ychar;
- yyextra->literallen += 1;
-}
-
-
-/*
- * Create a palloc'd copy of literalbuf, adding a trailing null.
- */
-static char *
-litbufdup(core_yyscan_t yyscanner)
-{
- int llen = yyextra->literallen;
- char *new;
-
- new = palloc(llen + 1);
- memcpy(new, yyextra->literalbuf, llen);
- new[llen] = '\0';
- return new;
-}
-
-/*
- * Process {integer}. Note this will also do the right thing with {decimal},
- * ie digits and a decimal point.
- */
-static int
-process_integer_literal(const char *token, YYSTYPE *lval)
-{
- int val;
- long val_long;
- char *endptr;
-
- errno = 0;
- val_long = strtol(token, &endptr, 10);
- val = (int) val_long;
-
- if (*endptr != '\0' || errno == ERANGE
-#ifdef HAVE_LONG_INT_64
- /* if long > 32 bits, check for overflow of int4 */
- || val != (int) val_long
-#endif
- )
- {
- /* integer too large (or contains decimal pt), treat it as a float */
- lval->str = pstrdup(token);
- return FCONST;
- }
- lval->ival = val;
- return ICONST;
-}
-
-static void
-addunicode(pg_wchar c, core_yyscan_t yyscanner)
-{
- ScannerCallbackState scbstate;
- char buf[MAX_UNICODE_EQUIVALENT_STRING + 1];
-
- if (!is_valid_unicode_codepoint(c))
- yyerror("invalid Unicode escape value");
-
- /*
- * We expect that pg_unicode_to_server() will complain about any
- * unconvertible code point, so we don't have to set saw_non_ascii.
- */
- setup_scanner_errposition_callback(&scbstate, yyscanner, *(yylloc));
- pg_unicode_to_server(c, (unsigned char *) buf);
- cancel_scanner_errposition_callback(&scbstate);
- addlit(buf, strlen(buf), yyscanner);
-}
-
-static unsigned char
-unescape_single_char(unsigned char c, core_yyscan_t yyscanner)
-{
- switch (c)
- {
- case 'b':
- return '\b';
- case 'f':
- return '\f';
- case 'n':
- return '\n';
- case 'r':
- return '\r';
- case 't':
- return '\t';
- default:
- /* check for backslash followed by non-7-bit-ASCII */
- if (c == '\0' || IS_HIGHBIT_SET(c))
- yyextra->saw_non_ascii = true;
-
- return c;
- }
-}
-
-static void
-check_string_escape_warning(unsigned char ychar, core_yyscan_t yyscanner)
-{
- if (ychar == '\'')
- {
- if (yyextra->warn_on_first_escape && yyextra->escape_string_warning)
-#ifdef NOT_USED
- ereport(WARNING,
- (errcode(ERRCODE_NONSTANDARD_USE_OF_ESCAPE_CHARACTER),
- errmsg("nonstandard use of \\' in a string literal"),
- errhint("Use '' to write quotes in strings, or use the escape string syntax (E'...')."),
- lexer_errposition()));
-#endif
- yyextra->warn_on_first_escape = false; /* warn only once per string */
- }
- else if (ychar == '\\')
- {
- if (yyextra->warn_on_first_escape && yyextra->escape_string_warning)
-#ifdef NOT_USED
- ereport(WARNING,
- (errcode(ERRCODE_NONSTANDARD_USE_OF_ESCAPE_CHARACTER),
- errmsg("nonstandard use of \\\\ in a string literal"),
- errhint("Use the escape string syntax for backslashes, e.g., E'\\\\'."),
- lexer_errposition()));
-#endif
- yyextra->warn_on_first_escape = false; /* warn only once per string */
- }
- else
- check_escape_warning(yyscanner);
-}
-
-static void
-check_escape_warning(core_yyscan_t yyscanner)
-{
- if (yyextra->warn_on_first_escape && yyextra->escape_string_warning)
-#ifdef NOT_USED
- ereport(WARNING,
- (errcode(ERRCODE_NONSTANDARD_USE_OF_ESCAPE_CHARACTER),
- errmsg("nonstandard use of escape in a string literal"),
- errhint("Use the escape string syntax for escapes, e.g., E'\\r\\n'."),
- lexer_errposition()));
-#endif
- yyextra->warn_on_first_escape = false; /* warn only once per string */
-}
-
-/*
- * Interface functions to make flex use palloc() instead of malloc().
- * It'd be better to make these static, but flex insists otherwise.
- */
-
-void *
-core_yyalloc(yy_size_t bytes, core_yyscan_t yyscanner)
-{
- return palloc(bytes);
-}
-
-void *
-core_yyrealloc(void *ptr, yy_size_t bytes, core_yyscan_t yyscanner)
-{
- if (ptr)
- return repalloc(ptr, bytes);
- else
- return palloc(bytes);
-}
-
-void
-core_yyfree(void *ptr, core_yyscan_t yyscanner)
-{
- if (ptr)
- pfree(ptr);
-}
-
projects / pgpool2.git / commitdiff