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Code
postgres/src/backend/parser/scan.c
Marc G. Fournier c4213aede1 From: Phil Thompson <phil@river-bank.demon.co.uk> 
Cleanup patches for previous protocol changes patch
1998-01-27 03:25:14 +00:00

2214 lines
56 KiB
C
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/* A lexical scanner generated by flex */
/* Scanner skeleton version:
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/scan.c,v 1.10 1998/01/27 03:25:07 scrappy 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 YY_USES_REJECT
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 40
#define YY_END_OF_BUFFER 41
static yyconst short int yy_acclist[163] =
{ 0,
10, 10, 6, 6, 24, 24, 9, 9, 25, 25,
18, 18, 41, 39, 40, 38, 39, 40, 38, 40,
31, 39, 40, 22, 39, 40, 29, 31, 39, 40,
15, 39, 40, 29, 39, 40, 29, 31, 39, 40,
29, 31, 39, 40, 29, 31, 39, 40, 35, 39,
40,16417, 29, 31, 39, 40, 37, 39, 40, 37,
39, 40, 37, 39, 40, 10, 40, 8, 40, 3,
6, 40, 3, 6, 40, 3, 40, 6, 40, 24,
40, 23, 40, 9, 40, 14, 40, 40, 25, 40,
26, 40, 18, 40, 16, 40, 40, 31, 31, 31,
32, 31, 31, 35,16417, 4, 31, 31, 27, 31,
37, 7, 13, 10, 6, 6, 5, 24, 9, 25,
18, 17, 20, 19, 20, 30, 28, 30, 28, 30,
32, 28, 1, 31, 31, 28, 30, 4, 31, 4,
31, 4, 31, 8225, 36,16418, 12, 5, 11, 21,
30, 2, 4, 31, 30, 2, 2, 2, 8226, 36,
16418, 2
} ;
static yyconst short int yy_accept[125] =
{ 0,
1, 1, 1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 16, 19, 21, 24,
27, 31, 34, 37, 41, 45, 49, 53, 57, 60,
63, 66, 68, 70, 73, 76, 78, 80, 82, 84,
86, 88, 89, 91, 93, 95, 97, 98, 99, 100,
101, 102, 102, 103, 104, 106, 108, 109, 109, 109,
109, 111, 112, 113, 114, 115, 115, 115, 116, 117,
117, 117, 118, 119, 120, 120, 120, 121, 122, 122,
122, 123, 124, 126, 127, 129, 132, 133, 133, 134,
135, 136, 138, 138, 140, 142, 144, 145, 147, 147,
147, 148, 149, 149, 149, 150, 150, 150, 151, 152,
152, 155, 156, 156, 156, 156, 157, 158, 159, 160,
160, 162, 163, 163
} ;
static yyconst int yy_ec[256] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
1, 2, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 4, 5, 4, 6, 4, 4, 7, 8,
8, 9, 10, 8, 11, 12, 13, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 15, 8, 16,
16, 16, 4, 4, 17, 18, 17, 17, 19, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 20, 17, 17,
8, 21, 8, 4, 17, 4, 17, 18, 17, 17,
19, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 20,
17, 17, 1, 16, 1, 4, 1, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17
} ;
static yyconst int yy_meta[22] =
{ 0,
1, 1, 2, 3, 4, 3, 5, 1, 6, 7,
7, 8, 3, 9, 3, 3, 10, 10, 9, 10,
11
} ;
static yyconst short int yy_base[142] =
{ 0,
0, 0, 355, 344, 18, 31, 334, 328, 325, 318,
46, 48, 18, 31, 313, 396, 396, 396, 293, 396,
12, 396, 292, 203, 42, 49, 61, 21, 0, 199,
196, 0, 52, 0, 72, 52, 0, 0, 396, 0,
64, 396, 66, 396, 0, 77, 192, 181, 78, 31,
169, 79, 165, 93, 0, 111, 104, 126, 0, 156,
135, 0, 396, 396, 0, 68, 128, 0, 0, 110,
129, 130, 0, 0, 138, 140, 142, 0, 146, 148,
396, 396, 396, 396, 396, 111, 396, 152, 396, 165,
122, 0, 77, 178, 64, 140, 396, 193, 170, 183,
396, 157, 195, 198, 396, 206, 208, 396, 0, 144,
214, 65, 216, 0, 210, 220, 223, 228, 396, 16,
214, 232, 396, 235, 246, 257, 268, 279, 290, 299,
298, 308, 319, 328, 335, 346, 357, 367, 378, 383,
386
} ;
static yyconst short int yy_def[142] =
{ 0,
123, 1, 124, 124, 125, 125, 126, 126, 127, 127,
128, 128, 129, 129, 123, 123, 123, 123, 130, 123,
130, 123, 123, 130, 130, 130, 123, 130, 131, 131,
131, 132, 123, 133, 133, 134, 35, 135, 123, 136,
123, 123, 123, 123, 137, 123, 138, 130, 130, 49,
123, 123, 50, 123, 27, 139, 54, 123, 140, 123,
130, 131, 123, 123, 132, 123, 123, 133, 35, 134,
134, 134, 135, 136, 123, 123, 123, 137, 123, 123,
123, 123, 123, 123, 123, 123, 123, 54, 123, 88,
90, 88, 139, 139, 94, 94, 123, 123, 123, 123,
123, 123, 123, 123, 123, 123, 123, 123, 88, 139,
94, 139, 123, 141, 123, 139, 139, 123, 123, 123,
98, 123, 0, 123, 123, 123, 123, 123, 123, 123,
123, 123, 123, 123, 123, 123, 123, 123, 123, 123,
123
} ;
static yyconst short int yy_nxt[418] =
{ 0,
16, 17, 18, 19, 20, 21, 22, 23, 24, 24,
25, 23, 26, 27, 28, 24, 29, 30, 29, 31,
16, 35, 50, 35, 46, 51, 36, 35, 35, 121,
37, 53, 35, 35, 35, 61, 35, 46, 47, 36,
35, 35, 85, 37, 86, 35, 35, 43, 43, 43,
43, 47, 54, 66, 67, 55, 44, 56, 44, 53,
70, 57, 58, 58, 72, 75, 76, 77, 77, 66,
67, 59, 60, 110, 55, 69, 111, 69, 79, 80,
70, 69, 69, 81, 69, 110, 69, 69, 49, 84,
87, 84, 87, 88, 88, 89, 90, 88, 90, 88,
88, 90, 90, 91, 92, 90, 92, 90, 90, 88,
88, 88, 88, 88, 94, 88, 94, 88, 70, 95,
94, 96, 72, 94, 51, 94, 94, 58, 58, 99,
100, 102, 102, 109, 101, 109, 59, 70, 70, 75,
76, 103, 104, 77, 77, 49, 105, 79, 80, 106,
107, 112, 110, 112, 108, 88, 116, 88, 102, 102,
88, 88, 88, 88, 88, 88, 88, 88, 90, 98,
90, 99, 100, 90, 90, 91, 101, 90, 85, 90,
90, 94, 51, 94, 99, 100, 95, 94, 96, 101,
94, 49, 94, 94, 113, 113, 103, 104, 83, 103,
104, 105, 64, 114, 105, 63, 98, 106, 107, 106,
107, 115, 108, 53, 108, 117, 118, 113, 113, 120,
120, 117, 118, 121, 117, 118, 114, 121, 110, 122,
118, 110, 123, 122, 118, 32, 32, 32, 32, 32,
32, 32, 32, 32, 32, 32, 34, 34, 34, 34,
34, 34, 34, 34, 34, 34, 34, 38, 38, 38,
38, 38, 38, 38, 38, 38, 38, 38, 40, 40,
40, 40, 40, 40, 40, 40, 40, 40, 40, 42,
42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
45, 48, 52, 49, 48, 48, 62, 62, 65, 65,
65, 65, 123, 65, 65, 65, 65, 65, 65, 68,
68, 68, 68, 68, 41, 68, 68, 68, 68, 68,
71, 41, 39, 71, 71, 73, 73, 73, 39, 73,
73, 73, 73, 73, 73, 73, 74, 74, 74, 74,
33, 74, 74, 74, 74, 74, 74, 78, 78, 78,
78, 33, 78, 78, 78, 78, 78, 82, 82, 82,
82, 82, 82, 82, 82, 82, 82, 82, 93, 123,
93, 93, 93, 93, 93, 93, 93, 93, 93, 97,
97, 97, 119, 119, 119, 15, 123, 123, 123, 123,
123, 123, 123, 123, 123, 123, 123, 123, 123, 123,
123, 123, 123, 123, 123, 123, 123
} ;
static yyconst short int yy_chk[418] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 5, 21, 5, 13, 21, 5, 5, 5, 120,
5, 28, 5, 5, 6, 28, 6, 14, 13, 6,
6, 6, 50, 6, 50, 6, 6, 11, 11, 12,
12, 14, 25, 33, 33, 25, 11, 26, 12, 26,
36, 26, 27, 27, 36, 41, 41, 43, 43, 66,
66, 27, 27, 112, 27, 35, 95, 35, 46, 46,
35, 35, 35, 46, 35, 93, 35, 35, 49, 49,
52, 49, 52, 54, 54, 54, 54, 54, 54, 54,
54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
54, 54, 54, 54, 56, 57, 56, 57, 70, 56,
56, 56, 70, 56, 86, 56, 56, 58, 58, 67,
67, 72, 72, 91, 67, 91, 58, 71, 72, 75,
75, 76, 76, 77, 77, 61, 76, 79, 79, 80,
80, 96, 110, 96, 80, 88, 110, 88, 102, 102,
88, 88, 88, 88, 88, 88, 88, 88, 90, 60,
90, 99, 99, 90, 90, 90, 99, 90, 53, 90,
90, 94, 51, 94, 100, 100, 94, 94, 94, 100,
94, 48, 94, 94, 98, 98, 103, 103, 47, 104,
104, 103, 31, 98, 104, 30, 98, 106, 106, 107,
107, 98, 106, 24, 107, 111, 111, 113, 113, 115,
115, 116, 116, 115, 117, 117, 113, 121, 116, 118,
118, 117, 121, 122, 122, 124, 124, 124, 124, 124,
124, 124, 124, 124, 124, 124, 125, 125, 125, 125,
125, 125, 125, 125, 125, 125, 125, 126, 126, 126,
126, 126, 126, 126, 126, 126, 126, 126, 127, 127,
127, 127, 127, 127, 127, 127, 127, 127, 127, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
129, 129, 129, 129, 129, 129, 129, 129, 129, 129,
129, 130, 23, 19, 130, 130, 131, 131, 132, 132,
132, 132, 15, 132, 132, 132, 132, 132, 132, 133,
133, 133, 133, 133, 10, 133, 133, 133, 133, 133,
134, 9, 8, 134, 134, 135, 135, 135, 7, 135,
135, 135, 135, 135, 135, 135, 136, 136, 136, 136,
4, 136, 136, 136, 136, 136, 136, 137, 137, 137,
137, 3, 137, 137, 137, 137, 137, 138, 138, 138,
138, 138, 138, 138, 138, 138, 138, 138, 139, 0,
139, 139, 139, 139, 139, 139, 139, 139, 139, 140,
140, 140, 141, 141, 141, 123, 123, 123, 123, 123,
123, 123, 123, 123, 123, 123, 123, 123, 123, 123,
123, 123, 123, 123, 123, 123, 123
} ;
static yy_state_type yy_state_buf[YY_BUF_SIZE + 2], *yy_state_ptr;
static char *yy_full_match;
static int yy_lp;
static int yy_looking_for_trail_begin = 0;
static int yy_full_lp;
static int *yy_full_state;
#define YY_TRAILING_MASK 0x2000
#define YY_TRAILING_HEAD_MASK 0x4000
#define REJECT \
{ \
*yy_cp = yy_hold_char; /* undo effects of setting up yytext */ \
yy_cp = yy_full_match; /* restore poss. backed-over text */ \
yy_lp = yy_full_lp; /* restore orig. accepting pos. */ \
yy_state_ptr = yy_full_state; /* restore orig. state */ \
yy_current_state = *yy_state_ptr; /* restore curr. state */ \
++yy_lp; \
goto find_rule; \
}
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *yytext;
#line 1 "scan.l"
#define INITIAL 0
#line 2 "scan.l"
/*-------------------------------------------------------------------------
*
* scan.l--
* lexical scanner for POSTGRES
*
* Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/scan.c,v 1.10 1998/01/27 03:25:07 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
#include <ctype.h>
#include <unistd.h>
#ifndef __linux__
#include <math.h>
#else
#include <stdlib.h>
#endif /* __linux__ */
#include <string.h>
#include <errno.h>
#include "postgres.h"
#include "miscadmin.h"
#include "nodes/pg_list.h"
#include "nodes/parsenodes.h"
#include "parser/gramparse.h"
#include "parser/keywords.h"
#include "parser/scansup.h"
#include "parse.h"
#include "utils/builtins.h"
extern char *parseString;
static char *parseCh;
/* some versions of lex define this as a macro */
#if defined(yywrap)
#undef yywrap
#endif /* yywrap */
#if defined(FLEX_SCANNER)
/* MAX_PARSE_BUFFER is defined in miscadmin.h */
#define YYLMAX MAX_PARSE_BUFFER
#define YY_NO_UNPUT
extern int myinput(char* buf, int max);
#undef YY_INPUT
#define YY_INPUT(buf,result,max) {result = myinput(buf,max);}
#else
#undef input
int input();
#undef unput
void unput(char);
#endif /* FLEX_SCANNER */
extern YYSTYPE yylval;
int llen;
char literal[MAX_PARSE_BUFFER];
/* 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 condition, to which all non-conditional rules apply.
* When in an exclusive condition, only those rules defined for that condition apply.
*
* Exclusive states change parsing rules while the state is active.
* There are exclusive states for quoted strings, extended comments,
* and to eliminate parsing troubles for numeric strings.
* Exclusive states:
* <xb> binary numeric string - thomas 1997-11-16
* <xc> extended C-style comments - tgl 1997-07-12
* <xd> delimited identifiers (double-quoted identifiers) - tgl 1997-10-27
* <xh> hexadecimal numeric string - thomas 1997-11-16
* <xm> numeric strings with embedded minus sign - tgl 1997-09-05
* <xq> quoted strings - tgl 1997-07-30
*
* The "extended comment" syntax closely resembles allowable operator syntax.
* So, when in condition <xc>, only strings which would terminate the
* "extended comment" trigger any action other than "ignore".
* Be sure to match _any_ candidate comment, including those with appended
* operator-like symbols. - thomas 1997-07-14
*/
#define xb 1
#define xc 2
#define xd 3
#define xh 4
#define xm 5
#define xq 6
/* Binary number
*/
/* Hexadecimal number
*/
/* Extended quote
* xqdouble implements SQL92 embedded quote
* xqcat allows strings to cross input lines
*/
/* Delimited quote
* Allows embedded spaces and other special characters into identifiers.
*/
/* Comments
* Ignored by the scanner and parser.
*/
/* DO NOT PUT ANY COMMENTS IN THE FOLLOWING SECTION.
* AT&T lex does not properly handle C-style comments in this second lex block.
* So, put comments here. tgl - 1997-09-08
*
* Quoted strings must allow some special characters such as single-quote
* and newline.
* Embedded single-quotes are implemented both in the SQL/92-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. - thomas 1997-09-24
*/
#line 655 "lex.yy.c"
/* Macros after this point can all be overridden by user definitions in
* section 1.
*/
#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap YY_PROTO(( void ));
#else
extern int yywrap YY_PROTO(( void ));
#endif
#endif
#ifndef YY_NO_UNPUT
static void yyunput YY_PROTO(( int c, char *buf_ptr ));
#endif
#ifndef yytext_ptr
static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int ));
#endif
#ifdef YY_NEED_STRLEN
static int yy_flex_strlen YY_PROTO(( yyconst char * ));
#endif
#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput YY_PROTO(( void ));
#else
static int input YY_PROTO(( void ));
#endif
#endif
#if YY_STACK_USED
static int yy_start_stack_ptr = 0;
static int yy_start_stack_depth = 0;
static int *yy_start_stack = 0;
#ifndef YY_NO_PUSH_STATE
static void yy_push_state YY_PROTO(( int new_state ));
#endif
#ifndef YY_NO_POP_STATE
static void yy_pop_state YY_PROTO(( void ));
#endif
#ifndef YY_NO_TOP_STATE
static int yy_top_state YY_PROTO(( void ));
#endif
#else
#define YY_NO_PUSH_STATE 1
#define YY_NO_POP_STATE 1
#define YY_NO_TOP_STATE 1
#endif
#ifdef YY_MALLOC_DECL
YY_MALLOC_DECL
#else
#if __STDC__
#ifndef __cplusplus
#include <stdlib.h>
#endif
#else
/* Just try to get by without declaring the routines. This will fail
* miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
* or sizeof(void*) != sizeof(int).
*/
#endif
#endif
/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif
/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
* we now use fwrite().
*/
#define ECHO (void) fwrite( yytext, yyleng, 1, yyout )
#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->yy_is_interactive ) \
{ \
int c = '*', 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 if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \
&& ferror( yyin ) ) \
YY_FATAL_ERROR( "input in flex scanner failed" );
#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 )
#endif
/* Default declaration of generated scanner - a define so the user can
* easily add parameters.
*/
#ifndef YY_DECL
#define YY_DECL int yylex YY_PROTO(( void ))
#endif
/* Code executed at the beginning of each rule, after yytext and yyleng
* have been set up.
*/
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif
/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif
#define YY_RULE_SETUP \
YY_USER_ACTION
YY_DECL
{
register yy_state_type yy_current_state;
register char *yy_cp, *yy_bp;
register int yy_act;
#line 178 "scan.l"
#line 808 "lex.yy.c"
if ( yy_init )
{
yy_init = 0;
#ifdef YY_USER_INIT
YY_USER_INIT;
#endif
if ( ! yy_start )
yy_start = 1; /* first start state */
if ( ! yyin )
yyin = stdin;
if ( ! yyout )
yyout = stdout;
if ( ! yy_current_buffer )
yy_current_buffer =
yy_create_buffer( yyin, YY_BUF_SIZE );
yy_load_buffer_state();
}
while ( 1 ) /* loops until end-of-file is reached */
{
yy_cp = yy_c_buf_p;
/* Support of yytext. */
*yy_cp = 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 = yy_start;
yy_state_ptr = yy_state_buf;
*yy_state_ptr++ = yy_current_state;
yy_match:
do
{
register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*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 >= 124 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
*yy_state_ptr++ = yy_current_state;
++yy_cp;
}
while ( yy_base[yy_current_state] != 396 );
yy_find_action:
yy_current_state = *--yy_state_ptr;
yy_lp = yy_accept[yy_current_state];
find_rule: /* we branch to this label when backing up */
for ( ; ; ) /* until we find what rule we matched */
{
if ( yy_lp && yy_lp < yy_accept[yy_current_state + 1] )
{
yy_act = yy_acclist[yy_lp];
if ( yy_act & YY_TRAILING_HEAD_MASK ||
yy_looking_for_trail_begin )
{
if ( yy_act == yy_looking_for_trail_begin )
{
yy_looking_for_trail_begin = 0;
yy_act &= ~YY_TRAILING_HEAD_MASK;
break;
}
}
else if ( yy_act & YY_TRAILING_MASK )
{
yy_looking_for_trail_begin = yy_act & ~YY_TRAILING_MASK;
yy_looking_for_trail_begin |= YY_TRAILING_HEAD_MASK;
}
else
{
yy_full_match = yy_cp;
yy_full_state = yy_state_ptr;
yy_full_lp = yy_lp;
break;
}
++yy_lp;
goto find_rule;
}
--yy_cp;
yy_current_state = *--yy_state_ptr;
yy_lp = 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 1:
YY_RULE_SETUP
#line 179 "scan.l"
{ /* ignore */ }
YY_BREAK
case 2:
YY_RULE_SETUP
#line 181 "scan.l"
{ /* ignore */ }
YY_BREAK
case 3:
#line 184 "scan.l"
case 4:
YY_RULE_SETUP
#line 184 "scan.l"
{ BEGIN(xc); }
YY_BREAK
case 5:
YY_RULE_SETUP
#line 186 "scan.l"
{ BEGIN(INITIAL); }
YY_BREAK
case 6:
YY_RULE_SETUP
#line 188 "scan.l"
{ /* ignore */ }
YY_BREAK
case 7:
YY_RULE_SETUP
#line 190 "scan.l"
{
BEGIN(xb);
llen = 0;
*literal = '\0';
}
YY_BREAK
case 8:
YY_RULE_SETUP
#line 195 "scan.l"
{
char* endptr;
BEGIN(INITIAL);
errno = 0;
yylval.ival = strtol((char *)literal,&endptr,2);
if (*endptr != '\0' || errno == ERANGE)
elog(ERROR,"Bad binary integer input '%s'",literal);
return (ICONST);
}
YY_BREAK
case 9:
#line 206 "scan.l"
case 10:
YY_RULE_SETUP
#line 206 "scan.l"
{
if ((llen+yyleng) > (MAX_PARSE_BUFFER - 1))
elog(ERROR,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
memcpy(literal+llen, yytext, yyleng+1);
llen += yyleng;
}
YY_BREAK
case 11:
#line 213 "scan.l"
case 12:
YY_RULE_SETUP
#line 213 "scan.l"
{
}
YY_BREAK
case 13:
YY_RULE_SETUP
#line 216 "scan.l"
{
BEGIN(xh);
llen = 0;
*literal = '\0';
}
YY_BREAK
case 14:
YY_RULE_SETUP
#line 221 "scan.l"
{
char* endptr;
BEGIN(INITIAL);
errno = 0;
yylval.ival = strtol((char *)literal,&endptr,16);
if (*endptr != '\0' || errno == ERANGE)
elog(ERROR,"Bad hexadecimal integer input '%s'",literal);
return (ICONST);
}
YY_BREAK
case 15:
YY_RULE_SETUP
#line 232 "scan.l"
{
BEGIN(xq);
llen = 0;
*literal = '\0';
}
YY_BREAK
case 16:
YY_RULE_SETUP
#line 237 "scan.l"
{
BEGIN(INITIAL);
yylval.str = pstrdup(scanstr(literal));
return (SCONST);
}
YY_BREAK
case 17:
#line 243 "scan.l"
case 18:
YY_RULE_SETUP
#line 243 "scan.l"
{
if ((llen+yyleng) > (MAX_PARSE_BUFFER - 1))
elog(ERROR,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
memcpy(literal+llen, yytext, yyleng+1);
llen += yyleng;
}
YY_BREAK
case 19:
YY_RULE_SETUP
#line 249 "scan.l"
{
if ((llen+yyleng-1) > (MAX_PARSE_BUFFER - 1))
elog(ERROR,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
memcpy(literal+llen, yytext, yyleng+1);
*(literal+llen) = '\'';
llen += yyleng;
}
YY_BREAK
case 20:
YY_RULE_SETUP
#line 257 "scan.l"
{
if ((llen+yyleng-1) > (MAX_PARSE_BUFFER - 1))
elog(ERROR,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
memcpy(literal+llen, yytext, yyleng+1);
llen += yyleng;
}
YY_BREAK
case 21:
YY_RULE_SETUP
#line 263 "scan.l"
{
}
YY_BREAK
case 22:
YY_RULE_SETUP
#line 267 "scan.l"
{
BEGIN(xd);
llen = 0;
*literal = '\0';
}
YY_BREAK
case 23:
YY_RULE_SETUP
#line 272 "scan.l"
{
BEGIN(INITIAL);
yylval.str = pstrdup(literal);
return (IDENT);
}
YY_BREAK
case 24:
YY_RULE_SETUP
#line 277 "scan.l"
{
if ((llen+yyleng) > (MAX_PARSE_BUFFER - 1))
elog(ERROR,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
memcpy(literal+llen, yytext, yyleng+1);
llen += yyleng;
}
YY_BREAK
case 25:
YY_RULE_SETUP
#line 285 "scan.l"
{ /* ignore */ }
YY_BREAK
case 26:
YY_RULE_SETUP
#line 286 "scan.l"
{
BEGIN(INITIAL);
return (yytext[0]);
}
YY_BREAK
case 27:
YY_RULE_SETUP
#line 292 "scan.l"
{ return TYPECAST; }
YY_BREAK
case 28:
*yy_cp = yy_hold_char; /* undo effects of setting up yytext */
yy_c_buf_p = yy_cp = yy_bp + 1;
YY_DO_BEFORE_ACTION; /* set up yytext again */
YY_RULE_SETUP
#line 294 "scan.l"
{
return (yytext[0]);
}
YY_BREAK
case 29:
YY_RULE_SETUP
#line 297 "scan.l"
{ return (yytext[0]); }
YY_BREAK
case 30:
*yy_cp = yy_hold_char; /* undo effects of setting up yytext */
yy_c_buf_p = yy_cp -= 2;
YY_DO_BEFORE_ACTION; /* set up yytext again */
YY_RULE_SETUP
#line 298 "scan.l"
{
yylval.str = pstrdup((char*)yytext);
return (Op);
}
YY_BREAK
case 31:
YY_RULE_SETUP
#line 302 "scan.l"
{
if (strcmp((char*)yytext,"!=") == 0)
yylval.str = pstrdup("<>"); /* compatability */
else
yylval.str = pstrdup((char*)yytext);
return (Op);
}
YY_BREAK
case 32:
YY_RULE_SETUP
#line 309 "scan.l"
{
yylval.ival = atoi((char*)&yytext[1]);
return (PARAM);
}
YY_BREAK
case 33:
YY_RULE_SETUP
#line 314 "scan.l"
{
char* endptr;
BEGIN(xm);
errno = 0;
yylval.ival = strtol((char *)yytext,&endptr,10);
if (*endptr != '\0' || errno == ERANGE)
elog(ERROR,"Bad integer input '%s'",yytext);
return (ICONST);
}
YY_BREAK
case 34:
YY_RULE_SETUP
#line 324 "scan.l"
{
char* endptr;
BEGIN(xm);
errno = 0;
yylval.dval = strtod(((char *)yytext),&endptr);
if (*endptr != '\0' || errno == ERANGE)
elog(ERROR,"Bad float8 input '%s'",yytext);
CheckFloat8Val(yylval.dval);
return (FCONST);
}
YY_BREAK
case 35:
YY_RULE_SETUP
#line 335 "scan.l"
{
char* endptr;
errno = 0;
yylval.ival = strtol((char *)yytext,&endptr,10);
if (*endptr != '\0' || errno == ERANGE)
elog(ERROR,"Bad integer input '%s'",yytext);
return (ICONST);
}
YY_BREAK
case 36:
YY_RULE_SETUP
#line 344 "scan.l"
{
char* endptr;
errno = 0;
yylval.dval = strtod((char *)yytext,&endptr);
if (*endptr != '\0' || errno == ERANGE)
elog(ERROR,"Bad float input '%s'",yytext);
CheckFloat8Val(yylval.dval);
return (FCONST);
}
YY_BREAK
case 37:
YY_RULE_SETUP
#line 354 "scan.l"
{
int i;
ScanKeyword *keyword;
for(i = 0; yytext[i]; i++)
if (isupper(yytext[i]))
yytext[i] = tolower(yytext[i]);
keyword = ScanKeywordLookup((char*)yytext);
if (keyword != NULL) {
return (keyword->value);
}
else
{
yylval.str = pstrdup((char*)yytext);
return (IDENT);
}
}
YY_BREAK
case 38:
YY_RULE_SETUP
#line 372 "scan.l"
{ /* ignore */ }
YY_BREAK
case 39:
YY_RULE_SETUP
#line 374 "scan.l"
{ return (yytext[0]); }
YY_BREAK
case 40:
YY_RULE_SETUP
#line 376 "scan.l"
ECHO;
YY_BREAK
#line 1246 "lex.yy.c"
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(xb):
case YY_STATE_EOF(xc):
case YY_STATE_EOF(xd):
case YY_STATE_EOF(xh):
case YY_STATE_EOF(xm):
case YY_STATE_EOF(xq):
yyterminate();
case YY_END_OF_BUFFER:
{
/* Amount of text matched not including the EOB char. */
int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1;
/* Undo the effects of YY_DO_BEFORE_ACTION. */
*yy_cp = yy_hold_char;
YY_RESTORE_YY_MORE_OFFSET
if ( yy_current_buffer->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.
*/
yy_n_chars = yy_current_buffer->yy_n_chars;
yy_current_buffer->yy_input_file = yyin;
yy_current_buffer->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 ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] )
{ /* This was really a NUL. */
yy_state_type yy_next_state;
yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;
yy_current_state = yy_get_previous_state();
/* 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 );
yy_bp = yytext_ptr + YY_MORE_ADJ;
if ( yy_next_state )
{
/* Consume the NUL. */
yy_cp = ++yy_c_buf_p;
yy_current_state = yy_next_state;
goto yy_match;
}
else
{
yy_cp = yy_c_buf_p;
goto yy_find_action;
}
}
else switch ( yy_get_next_buffer() )
{
case EOB_ACT_END_OF_FILE:
{
yy_did_buffer_switch_on_eof = 0;
if ( yywrap() )
{
/* 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.
*/
yy_c_buf_p = yytext_ptr + YY_MORE_ADJ;
yy_act = YY_STATE_EOF(YY_START);
goto do_action;
}
else
{
if ( ! yy_did_buffer_switch_on_eof )
YY_NEW_FILE;
}
break;
}
case EOB_ACT_CONTINUE_SCAN:
yy_c_buf_p =
yytext_ptr + yy_amount_of_matched_text;
yy_current_state = yy_get_previous_state();
yy_cp = yy_c_buf_p;
yy_bp = yytext_ptr + YY_MORE_ADJ;
goto yy_match;
case EOB_ACT_LAST_MATCH:
yy_c_buf_p =
&yy_current_buffer->yy_ch_buf[yy_n_chars];
yy_current_state = yy_get_previous_state();
yy_cp = yy_c_buf_p;
yy_bp = 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 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()
{
register char *dest = yy_current_buffer->yy_ch_buf;
register char *source = yytext_ptr;
register int number_to_move, i;
int ret_val;
if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] )
YY_FATAL_ERROR(
"fatal flex scanner internal error--end of buffer missed" );
if ( yy_current_buffer->yy_fill_buffer == 0 )
{ /* Don't try to fill the buffer, so this is an EOF. */
if ( yy_c_buf_p - 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) (yy_c_buf_p - yytext_ptr) - 1;
for ( i = 0; i < number_to_move; ++i )
*(dest++) = *(source++);
if ( yy_current_buffer->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->yy_n_chars = yy_n_chars = 0;
else
{
int num_to_read =
yy_current_buffer->yy_buf_size - number_to_move - 1;
while ( num_to_read <= 0 )
{ /* Not enough room in the buffer - grow it. */
#ifdef YY_USES_REJECT
YY_FATAL_ERROR(
"input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
#else
/* just a shorter name for the current buffer */
YY_BUFFER_STATE b = yy_current_buffer;
int yy_c_buf_p_offset =
(int) (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. */
yy_flex_realloc( (void *) b->yy_ch_buf,
b->yy_buf_size + 2 );
}
else
/* Can't grow it, we don't own it. */
b->yy_ch_buf = 0;
if ( ! b->yy_ch_buf )
YY_FATAL_ERROR(
"fatal error - scanner input buffer overflow" );
yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset];
num_to_read = yy_current_buffer->yy_buf_size -
number_to_move - 1;
#endif
}
if ( num_to_read > YY_READ_BUF_SIZE )
num_to_read = YY_READ_BUF_SIZE;
/* Read in more data. */
YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]),
yy_n_chars, num_to_read );
yy_current_buffer->yy_n_chars = yy_n_chars;
}
if ( yy_n_chars == 0 )
{
if ( number_to_move == YY_MORE_ADJ )
{
ret_val = EOB_ACT_END_OF_FILE;
yyrestart( yyin );
}
else
{
ret_val = EOB_ACT_LAST_MATCH;
yy_current_buffer->yy_buffer_status =
YY_BUFFER_EOF_PENDING;
}
}
else
ret_val = EOB_ACT_CONTINUE_SCAN;
yy_n_chars += number_to_move;
yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR;
yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
yytext_ptr = &yy_current_buffer->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()
{
register yy_state_type yy_current_state;
register char *yy_cp;
yy_current_state = yy_start;
yy_state_ptr = yy_state_buf;
*yy_state_ptr++ = yy_current_state;
for ( yy_cp = yytext_ptr + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp )
{
register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
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 >= 124 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
*yy_state_ptr++ = yy_current_state;
}
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 );
*/
#ifdef YY_USE_PROTOS
static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state )
#else
static yy_state_type yy_try_NUL_trans( yy_current_state )
yy_state_type yy_current_state;
#endif
{
register int yy_is_jam;
register YY_CHAR yy_c = 1;
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 >= 124 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
yy_is_jam = (yy_current_state == 123);
if ( ! yy_is_jam )
*yy_state_ptr++ = yy_current_state;
return yy_is_jam ? 0 : yy_current_state;
}
#ifndef YY_NO_UNPUT
#ifdef YY_USE_PROTOS
static void yyunput( int c, register char *yy_bp )
#else
static void yyunput( c, yy_bp )
int c;
register char *yy_bp;
#endif
{
register char *yy_cp = yy_c_buf_p;
/* undo effects of setting up yytext */
*yy_cp = yy_hold_char;
if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
{ /* need to shift things up to make room */
/* +2 for EOB chars. */
register int number_to_move = yy_n_chars + 2;
register char *dest = &yy_current_buffer->yy_ch_buf[
yy_current_buffer->yy_buf_size + 2];
register char *source =
&yy_current_buffer->yy_ch_buf[number_to_move];
while ( source > yy_current_buffer->yy_ch_buf )
*--dest = *--source;
yy_cp += (int) (dest - source);
yy_bp += (int) (dest - source);
yy_current_buffer->yy_n_chars =
yy_n_chars = yy_current_buffer->yy_buf_size;
if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
YY_FATAL_ERROR( "flex scanner push-back overflow" );
}
*--yy_cp = (char) c;
yytext_ptr = yy_bp;
yy_hold_char = *yy_cp;
yy_c_buf_p = yy_cp;
}
#endif /* ifndef YY_NO_UNPUT */
#ifdef __cplusplus
static int yyinput()
#else
static int input()
#endif
{
int c;
*yy_c_buf_p = yy_hold_char;
if ( *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 ( yy_c_buf_p < &yy_current_buffer->yy_ch_buf[yy_n_chars] )
/* This was really a NUL. */
*yy_c_buf_p = '\0';
else
{ /* need more input */
int offset = yy_c_buf_p - yytext_ptr;
++yy_c_buf_p;
switch ( yy_get_next_buffer() )
{
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 );
/* fall through */
case EOB_ACT_END_OF_FILE:
{
if ( yywrap() )
return EOF;
if ( ! yy_did_buffer_switch_on_eof )
YY_NEW_FILE;
#ifdef __cplusplus
return yyinput();
#else
return input();
#endif
}
case EOB_ACT_CONTINUE_SCAN:
yy_c_buf_p = yytext_ptr + offset;
break;
}
}
}
c = *(unsigned char *) yy_c_buf_p; /* cast for 8-bit char's */
*yy_c_buf_p = '\0'; /* preserve yytext */
yy_hold_char = *++yy_c_buf_p;
return c;
}
#ifdef YY_USE_PROTOS
void yyrestart( FILE *input_file )
#else
void yyrestart( input_file )
FILE *input_file;
#endif
{
if ( ! yy_current_buffer )
yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );
yy_init_buffer( yy_current_buffer, input_file );
yy_load_buffer_state();
}
#ifdef YY_USE_PROTOS
void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
#else
void yy_switch_to_buffer( new_buffer )
YY_BUFFER_STATE new_buffer;
#endif
{
if ( yy_current_buffer == new_buffer )
return;
if ( yy_current_buffer )
{
/* Flush out information for old buffer. */
*yy_c_buf_p = yy_hold_char;
yy_current_buffer->yy_buf_pos = yy_c_buf_p;
yy_current_buffer->yy_n_chars = yy_n_chars;
}
yy_current_buffer = new_buffer;
yy_load_buffer_state();
/* 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.
*/
yy_did_buffer_switch_on_eof = 1;
}
#ifdef YY_USE_PROTOS
void yy_load_buffer_state( void )
#else
void yy_load_buffer_state()
#endif
{
yy_n_chars = yy_current_buffer->yy_n_chars;
yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos;
yyin = yy_current_buffer->yy_input_file;
yy_hold_char = *yy_c_buf_p;
}
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_create_buffer( FILE *file, int size )
#else
YY_BUFFER_STATE yy_create_buffer( file, size )
FILE *file;
int size;
#endif
{
YY_BUFFER_STATE b;
b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
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 *) yy_flex_alloc( b->yy_buf_size + 2 );
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 );
return b;
}
#ifdef YY_USE_PROTOS
void yy_delete_buffer( YY_BUFFER_STATE b )
#else
void yy_delete_buffer( b )
YY_BUFFER_STATE b;
#endif
{
if ( ! b )
return;
if ( b == yy_current_buffer )
yy_current_buffer = (YY_BUFFER_STATE) 0;
if ( b->yy_is_our_buffer )
yy_flex_free( (void *) b->yy_ch_buf );
yy_flex_free( (void *) b );
}
#ifndef YY_ALWAYS_INTERACTIVE
#ifndef YY_NEVER_INTERACTIVE
extern int isatty YY_PROTO(( int ));
#endif
#endif
#ifdef YY_USE_PROTOS
void yy_init_buffer( YY_BUFFER_STATE b, FILE *file )
#else
void yy_init_buffer( b, file )
YY_BUFFER_STATE b;
FILE *file;
#endif
{
yy_flush_buffer( b );
b->yy_input_file = file;
b->yy_fill_buffer = 1;
#if YY_ALWAYS_INTERACTIVE
b->yy_is_interactive = 1;
#else
#if YY_NEVER_INTERACTIVE
b->yy_is_interactive = 0;
#else
b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
#endif
#endif
}
#ifdef YY_USE_PROTOS
void yy_flush_buffer( YY_BUFFER_STATE b )
#else
void yy_flush_buffer( b )
YY_BUFFER_STATE b;
#endif
{
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();
}
#ifndef YY_NO_SCAN_BUFFER
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size )
#else
YY_BUFFER_STATE yy_scan_buffer( base, size )
char *base;
yy_size_t size;
#endif
{
YY_BUFFER_STATE b;
if ( size < 2 ||
base[size-2] != YY_END_OF_BUFFER_CHAR ||
base[size-1] != YY_END_OF_BUFFER_CHAR )
/* They forgot to leave room for the EOB's. */
return 0;
b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
if ( ! b )
YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
b->yy_buf_pos = b->yy_ch_buf = base;
b->yy_is_our_buffer = 0;
b->yy_input_file = 0;
b->yy_n_chars = b->yy_buf_size;
b->yy_is_interactive = 0;
b->yy_at_bol = 1;
b->yy_fill_buffer = 0;
b->yy_buffer_status = YY_BUFFER_NEW;
yy_switch_to_buffer( b );
return b;
}
#endif
#ifndef YY_NO_SCAN_STRING
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_string( yyconst char *yy_str )
#else
YY_BUFFER_STATE yy_scan_string( yy_str )
yyconst char *yy_str;
#endif
{
int len;
for ( len = 0; yy_str[len]; ++len )
;
return yy_scan_bytes( yy_str, len );
}
#endif
#ifndef YY_NO_SCAN_BYTES
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len )
#else
YY_BUFFER_STATE yy_scan_bytes( bytes, len )
yyconst char *bytes;
int len;
#endif
{
YY_BUFFER_STATE b;
char *buf;
yy_size_t n;
int i;
/* Get memory for full buffer, including space for trailing EOB's. */
n = len + 2;
buf = (char *) yy_flex_alloc( n );
if ( ! buf )
YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );
for ( i = 0; i < len; ++i )
buf[i] = bytes[i];
buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;
b = yy_scan_buffer( buf, n );
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;
}
#endif
#ifndef YY_NO_PUSH_STATE
#ifdef YY_USE_PROTOS
static void yy_push_state( int new_state )
#else
static void yy_push_state( new_state )
int new_state;
#endif
{
if ( yy_start_stack_ptr >= yy_start_stack_depth )
{
yy_size_t new_size;
yy_start_stack_depth += YY_START_STACK_INCR;
new_size = yy_start_stack_depth * sizeof( int );
if ( ! yy_start_stack )
yy_start_stack = (int *) yy_flex_alloc( new_size );
else
yy_start_stack = (int *) yy_flex_realloc(
(void *) yy_start_stack, new_size );
if ( ! yy_start_stack )
YY_FATAL_ERROR(
"out of memory expanding start-condition stack" );
}
yy_start_stack[yy_start_stack_ptr++] = YY_START;
BEGIN(new_state);
}
#endif
#ifndef YY_NO_POP_STATE
static void yy_pop_state()
{
if ( --yy_start_stack_ptr < 0 )
YY_FATAL_ERROR( "start-condition stack underflow" );
BEGIN(yy_start_stack[yy_start_stack_ptr]);
}
#endif
#ifndef YY_NO_TOP_STATE
static int yy_top_state()
{
return yy_start_stack[yy_start_stack_ptr - 1];
}
#endif
#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif
#ifdef YY_USE_PROTOS
static void yy_fatal_error( yyconst char msg[] )
#else
static void yy_fatal_error( msg )
char msg[];
#endif
{
(void) fprintf( stderr, "%s\n", msg );
exit( YY_EXIT_FAILURE );
}
/* Redefine yyless() so it works in section 3 code. */
#undef yyless
#define yyless(n) \
do \
{ \
/* Undo effects of setting up yytext. */ \
yytext[yyleng] = yy_hold_char; \
yy_c_buf_p = yytext + n; \
yy_hold_char = *yy_c_buf_p; \
*yy_c_buf_p = '\0'; \
yyleng = n; \
} \
while ( 0 )
/* Internal utility routines. */
#ifndef yytext_ptr
#ifdef YY_USE_PROTOS
static void yy_flex_strncpy( char *s1, yyconst char *s2, int n )
#else
static void yy_flex_strncpy( s1, s2, n )
char *s1;
yyconst char *s2;
int n;
#endif
{
register int i;
for ( i = 0; i < n; ++i )
s1[i] = s2[i];
}
#endif
#ifdef YY_NEED_STRLEN
#ifdef YY_USE_PROTOS
static int yy_flex_strlen( yyconst char *s )
#else
static int yy_flex_strlen( s )
yyconst char *s;
#endif
{
register int n;
for ( n = 0; s[n]; ++n )
;
return n;
}
#endif
#ifdef YY_USE_PROTOS
static void *yy_flex_alloc( yy_size_t size )
#else
static void *yy_flex_alloc( size )
yy_size_t size;
#endif
{
return (void *) malloc( size );
}
#ifdef YY_USE_PROTOS
static void *yy_flex_realloc( void *ptr, yy_size_t size )
#else
static void *yy_flex_realloc( ptr, size )
void *ptr;
yy_size_t size;
#endif
{
/* The cast to (char *) in the following accommodates both
* implementations that use char* generic pointers, and those
* that use void* generic pointers. It works with the latter
* because both ANSI C and C++ allow castless assignment from
* any pointer type to void*, and deal with argument conversions
* as though doing an assignment.
*/
return (void *) realloc( (char *) ptr, size );
}
#ifdef YY_USE_PROTOS
static void yy_flex_free( void *ptr )
#else
static void yy_flex_free( ptr )
void *ptr;
#endif
{
free( ptr );
}
#if YY_MAIN
int main()
{
yylex();
return 0;
}
#endif
#line 376 "scan.l"
void yyerror(char message[])
{
elog(ERROR, "parser: %s at or near \"%s\"", message, yytext);
}
int yywrap()
{
return(1);
}
/*
init_io:
called by postgres before any actual parsing is done
*/
void
init_io()
{
/* it's important to set this to NULL
because input()/myinput() checks the non-nullness of parseCh
to know when to pass the string to lex/flex */
parseCh = NULL;
#if defined(FLEX_SCANNER)
if (YY_CURRENT_BUFFER)
yy_flush_buffer(YY_CURRENT_BUFFER);
#endif /* FLEX_SCANNER */
BEGIN INITIAL;
}
#if !defined(FLEX_SCANNER)
/* get lex input from a string instead of from stdin */
int
input()
{
if (parseCh == NULL)
{
parseCh = parseString;
return(*parseCh++);
}
else if (*parseCh == '\0')
return(0);
else
return(*parseCh++);
}
/* undo lex input from a string instead of from stdin */
void
unput(char c)
{
if (parseCh == NULL)
elog(FATAL, "Unput() failed.\n");
else if (c != 0)
*--parseCh = c;
}
#endif /* !defined(FLEX_SCANNER) */
#ifdef FLEX_SCANNER
/* input routine for flex to read input from a string instead of a file */
int
myinput(char* buf, int max)
{
int len, copylen;
if (parseCh == NULL)
{
len = strlen(parseString);
if (len >= max)
copylen = max - 1;
else
copylen = len;
if (copylen > 0)
memcpy(buf, parseString, copylen);
buf[copylen] = '\0';
parseCh = parseString;
return copylen;
}
else
return 0; /* end of string */
}
#endif /* FLEX_SCANNER */
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