pl_scan.c

PostgreSQL 8.1.4的源码 适用于Linux下的开源数据库系统

#define yy_create_buffer plpgsql_base_yy_create_buffer
#define yy_delete_buffer plpgsql_base_yy_delete_buffer
#define yy_scan_buffer plpgsql_base_yy_scan_buffer
#define yy_scan_string plpgsql_base_yy_scan_string
#define yy_scan_bytes plpgsql_base_yy_scan_bytes
#define yy_flex_debug plpgsql_base_yy_flex_debug
#define yy_init_buffer plpgsql_base_yy_init_buffer
#define yy_flush_buffer plpgsql_base_yy_flush_buffer
#define yy_load_buffer_state plpgsql_base_yy_load_buffer_state
#define yy_switch_to_buffer plpgsql_base_yy_switch_to_buffer
#define yyin plpgsql_base_yyin
#define yyleng plpgsql_base_yyleng
#define yylex plpgsql_base_yylex
#define yyout plpgsql_base_yyout
#define yyrestart plpgsql_base_yyrestart
#define yytext plpgsql_base_yytext

#line 19 "pl_scan.c"
/* A lexical scanner generated by flex */

/* Scanner skeleton version:
 * $Header: /home/daffy/u0/vern/flex/RCS/flex.skl,v 2.91 96/09/10 16:58:48 vern Exp $
 * $FreeBSD: src/usr.bin/lex/flex.skl,v 1.8 2004/01/06 19:03:44 nectar Exp $
 */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5

#include <stdio.h>


/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
#ifdef c_plusplus
#ifndef __cplusplus
#define __cplusplus
#endif
#endif


#ifdef __cplusplus

#include <stdlib.h>
#include <unistd.h>

/* Use prototypes in function declarations. */
#define YY_USE_PROTOS

/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST

#else	/* ! __cplusplus */

#if __STDC__

#define YY_USE_PROTOS
#define YY_USE_CONST

#endif	/* __STDC__ */
#endif	/* ! __cplusplus */

#ifdef __TURBOC__
 #pragma warn -rch
 #pragma warn -use
#include <io.h>
#include <stdlib.h>
#define YY_USE_CONST
#define YY_USE_PROTOS
#endif

#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#endif


#ifdef YY_USE_PROTOS
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
#endif

/* Returned upon end-of-file. */
#define YY_NULL 0

/* Promotes a possibly negative, possibly signed char to an unsigned
 * integer for use as an array index.  If the signed char is negative,
 * we want to instead treat it as an 8-bit unsigned char, hence the
 * double cast.
 */
#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)

/* 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 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 ((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 )

#define YY_END_OF_BUFFER_CHAR 0

/* Size of default input buffer. */
#define YY_BUF_SIZE 16384

typedef struct yy_buffer_state *YY_BUFFER_STATE;

extern int yyleng;
extern FILE *yyin, *yyout;

#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2

/* The funky do-while in the following #define is used to turn the definition
 * int a single C statement (which needs a semi-colon terminator).  This
 * avoids problems with code like:
 *
 * 	if ( condition_holds )
 *		yyless( 5 );
 *	else
 *		do_something_else();
 *
 * Prior to using the do-while the compiler would get upset at the
 * "else" because it interpreted the "if" statement as being all
 * done when it reached the ';' after the yyless() call.
 */

/* Return all but the first 'n' matched characters back to the input stream. */

#define yyless(n) \
	do \
		{ \
		/* Undo effects of setting up yytext. */ \
		*yy_cp = yy_hold_char; \
		YY_RESTORE_YY_MORE_OFFSET \
		yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \
		YY_DO_BEFORE_ACTION; /* set up yytext again */ \
		} \
	while ( 0 )

#define unput(c) yyunput( c, yytext_ptr )

/* The following is because we cannot portably get our hands on size_t
 * (without autoconf's help, which isn't available because we want
 * flex-generated scanners to compile on their own).
 */
typedef unsigned int yy_size_t;


struct yy_buffer_state
	{
	FILE *yy_input_file;

	char *yy_ch_buf;		/* input buffer */
	char *yy_buf_pos;		/* current position in input buffer */

	/* Size of input buffer in bytes, not including room for EOB
	 * characters.
	 */
	yy_size_t yy_buf_size;

	/* Number of characters read into yy_ch_buf, not including EOB
	 * characters.
	 */
	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;

	/* 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
	};

static YY_BUFFER_STATE yy_current_buffer = 0;

/* 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".
 */
#define YY_CURRENT_BUFFER yy_current_buffer


/* yy_hold_char holds the character lost when yytext is formed. */
static char yy_hold_char;

static int yy_n_chars;		/* number of characters read into yy_ch_buf */


int yyleng;

/* Points to current character in buffer. */
static char *yy_c_buf_p = (char *) 0;
static int yy_init = 1;		/* whether we need to initialize */
static int yy_start = 0;	/* start state number */

/* Flag which is used to allow yywrap()'s to do buffer switches
 * instead of setting up a fresh yyin.  A bit of a hack ...
 */
static int yy_did_buffer_switch_on_eof;

void yyrestart YY_PROTO(( FILE *input_file ));

void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer ));
void yy_load_buffer_state YY_PROTO(( void ));
YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size ));
void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b ));
void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file ));
void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b ));
#define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer )

YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size ));
YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str ));
YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));

static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ));
static void yy_flex_free YY_PROTO(( void * ));

#define yy_new_buffer yy_create_buffer

#define yy_set_interactive(is_interactive) \
	{ \
	if ( ! yy_current_buffer ) \
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
	yy_current_buffer->yy_is_interactive = is_interactive; \
	}

#define yy_set_bol(at_bol) \
	{ \
	if ( ! yy_current_buffer ) \
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
	yy_current_buffer->yy_at_bol = at_bol; \
	}

#define YY_AT_BOL() (yy_current_buffer->yy_at_bol)


#define yywrap() 1
#define YY_SKIP_YYWRAP
typedef unsigned char YY_CHAR;
FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
typedef int yy_state_type;
extern char *yytext;
#define yytext_ptr yytext

static yy_state_type yy_get_previous_state YY_PROTO(( void ));
static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state ));
static int yy_get_next_buffer YY_PROTO(( void ));
static void yy_fatal_error YY_PROTO(( yyconst char msg[] ));

/* Done after the current pattern has been matched and before the
 * corresponding action - sets up yytext.
 */
#define YY_DO_BEFORE_ACTION \
	yytext_ptr = yy_bp; \
	yyleng = (int) (yy_cp - yy_bp); \
	yy_hold_char = *yy_cp; \
	*yy_cp = '\0'; \
	yy_c_buf_p = yy_cp;

#define YY_NUM_RULES 90
#define YY_END_OF_BUFFER 91
static yyconst short int yy_accept[355] =
    {   0,
        0,    0,    0,    0,    0,    0,    0,    0,   91,   89,
       72,   72,   89,   89,   78,   89,   89,   89,   70,   89,
        2,   54,   54,   54,   54,   54,   54,   54,   54,   54,
       54,   54,   54,   54,   54,   54,   54,   54,   89,   84,
       83,   81,   77,   76,   77,   87,   87,   88,   72,   71,
        0,   54,   85,   62,    0,   73,    3,   74,   70,    1,
        0,   54,    0,    0,   54,   54,   54,   54,   54,   54,
       54,   54,   79,   54,   54,   54,   54,   54,   54,   54,
       25,   26,   29,   54,   54,   54,   54,   54,   37,   54,
       54,   54,   54,   54,   54,   47,   54,   54,   54,    0,

       84,   82,   80,   75,   87,   86,    0,   54,    0,    0,
        0,    0,    0,   73,    0,    0,    0,    0,   55,   54,
       54,   54,   54,   54,   54,   54,   54,   54,   54,   54,
       17,   54,   54,   54,   54,   22,   54,   24,   54,   54,
       30,   54,   54,   33,   54,   54,   54,   54,   54,   54,
       54,   54,   54,   54,   54,   54,   54,   54,   54,    0,
        0,    0,    0,    0,    0,   63,    0,    0,    0,   55,
        0,   55,    0,    0,   54,   54,   54,   54,   54,   54,
       54,   54,   54,   54,   53,   14,   54,   54,   54,   20,
       54,   23,   27,   28,   31,   32,   54,   35,   36,   54,

       54,   54,   54,   54,   54,   54,   54,   46,   48,   54,
       50,   54,    0,    0,    0,    0,   63,    0,   63,    0,
        0,    0,    0,    0,    0,    0,    0,   56,    4,    5,
        6,   54,   54,   54,   10,   54,   54,   54,   54,   16,
       54,   54,   21,   54,   54,   39,   54,   54,   54,   54,
       54,   54,   54,   51,    0,    0,    0,    0,    0,    0,
        0,   64,    0,   57,    0,    0,    0,   56,    0,   56,
        0,   54,   54,    9,   54,   54,   54,   15,   54,   54,
       34,   54,   40,   54,   42,   54,   54,   45,   54,    0,
        0,   65,    0,    0,    0,   64,    0,   64,    0,    0,

        0,    0,    0,   54,   54,   11,   12,   54,   54,   19,
       38,   54,   43,   54,   49,   52,    0,    0,    0,    0,
        0,    0,   58,    0,    7,    8,   54,   54,   54,   54,
        0,    0,   66,    0,   60,    0,    0,   54,   18,   54,
       44,   68,    0,    0,    0,   59,   54,   41,    0,   67,
       61,   13,   69,    0
    } ;

static yyconst int 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,    1,    5,    6,    7,    8,    1,    9,    1,
        1,   10,    1,    1,   11,   12,   13,   14,   14,   14,
       14,   14,   14,   14,   14,   14,   14,   15,    1,    1,
       16,    1,    1,    1,   19,   20,   21,   22,   23,   24,
       25,   26,   27,   28,   28,   29,   30,   31,   32,   33,
       28,   34,   35,   36,   37,   38,   39,   40,   41,   28,
        1,   17,    1,    1,   18,    1,   19,   20,   21,   22,

       23,   24,   25,   26,   27,   28,   28,   29,   30,   31,
       32,   33,   28,   34,   35,   36,   37,   38,   39,   40,
       41,   28,    1,    1,    1,    1,    1,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,

       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
       28,   28,   28,   28,   28
    } ;

static yyconst int yy_meta[42] =
    {   0,
        1,    2,    3,    4,    5,    1,    6,    7,    8,    1,
        1,    9,    1,   10,    1,    1,    8,   11,   11,   11,
       11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
       11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
       11
    } ;

static yyconst short int yy_base[381] =
    {   0,
        0,  430,   33,   34,   42,   43,   41,   51,  430, 1439,
       53,   57,   44,   55, 1439,  413,  409,  408,  401,  398,
     1439,   62,   69,   76,   98,   60,   76,   80,   92,  102,
       91,  109,  111,  124,  131,  135,  133,  147,  368,    0,
      390,    0, 1439, 1439,  385,    0,    0,  389,   91,  390,
      384,  178, 1439,  185,  375,    0, 1439, 1439,  367, 1439,
      192,  120,  135,  203,  182,  188,  186,  195,  199,  214,
      210,  220, 1439,  224,  208,  237,  236,  246,  247,  253,
      259,  263,  265,  276,  274,  280,  278,  295,  291,  297,
      306,  315,  325,  293,  326,  308,  336,  338,  351,  346,

        0, 1439, 1439, 1439,    0, 1439,  370,  382,  371,  389,
      141,  400,  364,    0,  334,  320,  404,  355,  408,  394,
      390,  400,  403,  409,  396,  414,  423,  424,  425,  436,
      435,  446,  445,  452,  458,  462,  468,  464,  474,  475,
      481,  487,  485,  496,  497,  506,  507,  513,  522,  520,
      524,  535,  537,  539,  546,  550,  557,  561,  567,  323,
      349,  316,  301,  598,  336,  603,  300,  303,  316,  614,
      621,  628,  167,  639,  616,  618,  629,  627,  633,  639,
      648,  650,  646,  657,  661,  668,  667,  674,  680,  681,
      690,  691,  692,  701,  702,  703,  715,  713,  714,  724,