#ifdef HAVE_CONFIG_H
#include <raptor_config.h>
#endif

#ifdef WIN32
#include <win32_raptor_config.h>
#endif

#line 10 "turtle_lexer.c"

#line 12 "turtle_lexer.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 5
#define YY_FLEX_SUBMINOR_VERSION 35
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif

/* First, we deal with  platform-specific or compiler-specific issues. */

/* begin standard C headers. */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>

/* end standard C headers. */

/* flex integer type definitions */

#ifndef FLEXINT_H
#define FLEXINT_H

/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */

#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L

/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
 * if you want the limit (max/min) macros for int types. 
 */
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS 1
#endif

#include <inttypes.h>
typedef int8_t flex_int8_t;
typedef uint8_t flex_uint8_t;
typedef int16_t flex_int16_t;
typedef uint16_t flex_uint16_t;
typedef int32_t flex_int32_t;
typedef uint32_t flex_uint32_t;
#else
typedef signed char flex_int8_t;
typedef short int flex_int16_t;
typedef int flex_int32_t;
typedef unsigned char flex_uint8_t; 
typedef unsigned short int flex_uint16_t;
typedef unsigned int flex_uint32_t;

/* Limits of integral types. */
#ifndef INT8_MIN
#define INT8_MIN               (-128)
#endif
#ifndef INT16_MIN
#define INT16_MIN              (-32767-1)
#endif
#ifndef INT32_MIN
#define INT32_MIN              (-2147483647-1)
#endif
#ifndef INT8_MAX
#define INT8_MAX               (127)
#endif
#ifndef INT16_MAX
#define INT16_MAX              (32767)
#endif
#ifndef INT32_MAX
#define INT32_MAX              (2147483647)
#endif
#ifndef UINT8_MAX
#define UINT8_MAX              (255U)
#endif
#ifndef UINT16_MAX
#define UINT16_MAX             (65535U)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX             (4294967295U)
#endif

#endif /* ! C99 */

#endif /* ! FLEXINT_H */

#ifdef __cplusplus

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

#else	/* ! __cplusplus */

/* C99 requires __STDC__ to be defined as 1. */
#if defined (__STDC__)

#define YY_USE_CONST

#endif	/* defined (__STDC__) */
#endif	/* ! __cplusplus */

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

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

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

/* An opaque pointer. */
#ifndef YY_TYPEDEF_YY_SCANNER_T
#define YY_TYPEDEF_YY_SCANNER_T
typedef void* yyscan_t;
#endif

/* For convenience, these vars (plus the bison vars far below)
   are macros in the reentrant scanner. */
#define yyin yyg->yyin_r
#define yyout yyg->yyout_r
#define yyextra yyg->yyextra_r
#define yyleng yyg->yyleng_r
#define yytext yyg->yytext_r
#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)
#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
#define yy_flex_debug yyg->yy_flex_debug_r

/* Enter a start condition.  This macro really ought to take a parameter,
 * but we do it the disgusting crufty way forced on us by the ()-less
 * definition of BEGIN.
 */
#define BEGIN yyg->yy_start = 1 + 2 *

/* Translate the current start state into a value that can be later handed
 * to BEGIN to return to the state.  The YYSTATE alias is for lex
 * compatibility.
 */
#define YY_START ((yyg->yy_start - 1) / 2)
#define YYSTATE YY_START

/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)

/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE turtle_lexer_restart(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

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

    #define YY_LESS_LINENO(n)
    
/* 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_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef size_t yy_size_t;
#endif

#ifndef YY_STRUCT_YY_BUFFER_STATE
#define YY_STRUCT_YY_BUFFER_STATE
struct yy_buffer_state
	{
	FILE *yy_input_file;

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

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

	/* Number of characters read into yy_ch_buf, not including EOB
	 * characters.
	 */
	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 turtle_lexer_restart()), 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 turtle_lexer_restart (FILE *input_file ,yyscan_t yyscanner );
void turtle_lexer__switch_to_buffer (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
YY_BUFFER_STATE turtle_lexer__create_buffer (FILE *file,int size ,yyscan_t yyscanner );
void turtle_lexer__delete_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
void turtle_lexer__flush_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
void turtle_lexer_push_buffer_state (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
void turtle_lexer_pop_buffer_state (yyscan_t yyscanner );

static void turtle_lexer_ensure_buffer_stack (yyscan_t yyscanner );
static void turtle_lexer__load_buffer_state (yyscan_t yyscanner );
static void turtle_lexer__init_buffer (YY_BUFFER_STATE b,FILE *file ,yyscan_t yyscanner );

#define YY_FLUSH_BUFFER turtle_lexer__flush_buffer(YY_CURRENT_BUFFER ,yyscanner)

YY_BUFFER_STATE turtle_lexer__scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner );
YY_BUFFER_STATE turtle_lexer__scan_string (yyconst char *yy_str ,yyscan_t yyscanner );
YY_BUFFER_STATE turtle_lexer__scan_bytes (yyconst char *bytes,int len ,yyscan_t yyscanner );

void *turtle_lexer_alloc (yy_size_t ,yyscan_t yyscanner );
void *turtle_lexer_realloc (void *,yy_size_t ,yyscan_t yyscanner );
void turtle_lexer_free (void * ,yyscan_t yyscanner );

#define yy_new_buffer turtle_lexer__create_buffer

#define yy_set_interactive(is_interactive) \
	{ \
	if ( ! YY_CURRENT_BUFFER ){ \
        turtle_lexer_ensure_buffer_stack (yyscanner); \
		YY_CURRENT_BUFFER_LVALUE =    \
            turtle_lexer__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 ){\
        turtle_lexer_ensure_buffer_stack (yyscanner); \
		YY_CURRENT_BUFFER_LVALUE =    \
            turtle_lexer__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 */

typedef unsigned char YY_CHAR;

typedef int yy_state_type;

#define yytext_ptr yytext_r

static yy_state_type yy_get_previous_state (yyscan_t yyscanner );
static yy_state_type yy_try_NUL_trans (yy_state_type current_state  ,yyscan_t yyscanner);
static int yy_get_next_buffer (yyscan_t yyscanner );

/* 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 = (size_t) (yy_cp - yy_bp); \
	yyg->yy_hold_char = *yy_cp; \
	*yy_cp = '\0'; \
	yyg->yy_c_buf_p = yy_cp;

#define YY_NUM_RULES 40
#define YY_END_OF_BUFFER 41
/* This struct is not used in this scanner,
   but its presence is necessary. */
struct yy_trans_info
	{
	flex_int32_t yy_verify;
	flex_int32_t yy_nxt;
	};
static yyconst flex_int16_t yy_accept[112] =
    {   0,
        0,    0,    0,    0,   22,   22,   41,   39,    2,    1,
        1,   39,   38,   13,   14,   39,    5,    4,   28,   25,
        6,   39,   11,   36,    7,   39,    8,   39,   39,    3,
       36,   36,   15,   16,   32,   29,   31,   32,   22,   22,
       22,   23,    2,    1,    0,   19,    0,   38,   37,   37,
        0,   28,   26,   26,    0,    0,    0,   25,   34,    0,
       35,    0,    0,   36,   25,    0,   12,    0,   36,   36,
       29,    0,   30,   22,   22,    0,    0,   19,   20,    0,
       26,    0,    0,   27,    0,   25,    0,    0,   33,    0,
        0,   24,   36,   36,   21,    0,   27,    0,   27,    0,

        0,    0,   24,   36,   17,   10,    0,   18,    0,    9,
        0
    } ;

static yyconst flex_int32_t yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        2,    1,    4,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    1,    5,    6,    1,    1,    1,    1,    7,
        8,    1,    9,   10,   11,   12,    1,   13,   13,   13,
       13,   13,   13,   13,   13,   13,   13,   14,   15,   16,
       17,   18,    1,   19,   20,   20,   20,   20,   21,   20,
       20,   20,   20,   20,   20,   20,   20,   20,   20,   20,
       20,   20,   20,   20,   20,   20,   20,   20,   20,   20,
       22,   23,   24,   25,   26,    1,   27,   28,   20,   20,

       29,   30,   20,   20,   31,   20,   20,   32,   20,   20,
       20,   33,   20,   34,   35,   36,   37,   20,   20,   38,
       20,   20,   39,    1,   40,    1,    1,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,

       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41,   41,   41,   41,   41,   41,
       41,   41,   41,   41,   41
    } ;

static yyconst flex_int32_t yy_meta[42] =
    {   0,
        1,    2,    3,    4,    5,    1,    1,    1,    1,    1,
        6,    1,    6,    7,    1,    1,    2,    1,    1,    8,
        8,    1,    8,    1,    1,    8,    8,    8,    8,    8,
        8,    8,    8,    8,    8,    8,    8,    8,    2,    1,
        8
    } ;

static yyconst flex_int16_t yy_base[124] =
    {   0,
        0,    0,   41,    0,   80,   81,  262,  301,  259,  301,
      243,   82,   85,  301,  301,   78,  301,  232,   80,   93,
      301,  215,   66,   83,  301,  217,  301,  205,  215,   84,
       88,   85,  301,  301,  301,  226,  301,  212,   97,  105,
      220,  111,  222,  301,  108,  218,    0,  114,  301,  219,
      208,  109,  113,  114,  128,  142,  144,  146,  301,  202,
      148,  192,  184,  190,  150,  202,  301,    0,  128,   96,
      212,  199,  301,  133,  151,  159,  207,  301,  301,  157,
      148,  162,  198,  197,  155,  176,  188,  193,  301,  174,
      179,    0,  145,  155,  301,  194,  193,  191,  190,  195,

      173,  171,    0,  159,  173,  301,  168,  165,  138,  301,
      301,  234,  242,  250,  257,  265,  268,  271,  274,  282,
      289,  132,  292
    } ;

static yyconst flex_int16_t yy_def[124] =
    {   0,
      111,    1,  111,    3,  112,  112,  111,  111,  111,  111,
      111,  113,  114,  111,  111,  111,  111,  111,  111,  115,
      111,  116,  111,  117,  111,  118,  111,  111,  111,  117,
      117,   31,  111,  111,  111,  111,  111,  119,  120,  120,
      111,  120,  111,  111,  113,  111,  113,  114,  111,  111,
      111,  111,  111,  111,  111,  111,  111,  121,  111,  116,
      111,  111,  111,   31,  115,  118,  111,  122,   31,   31,
      111,  119,  111,  120,  120,  120,  111,  111,  111,  111,
      111,  111,  111,  111,  111,  121,  111,  111,  111,  111,
      111,  123,   31,   31,  111,  111,  111,  111,  111,  111,

      111,  111,  123,   31,   31,  111,  111,   31,  111,  111,
        0,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111,  111
    } ;

static yyconst flex_int16_t yy_nxt[343] =
    {   0,
        8,    9,   10,   11,   12,   13,   14,   15,   16,   17,
       16,   18,   19,   20,   21,   22,    8,    8,   23,   24,
       24,   25,   26,   27,   28,   29,   30,   24,   24,   31,
       24,   24,   24,   24,   24,   32,   24,   24,   33,   34,
       26,   35,   36,   35,   35,   35,   35,   35,   35,   35,
       35,   35,   35,   35,   37,   35,   35,   35,   35,   35,
       38,   38,   35,   38,   35,   35,   35,   38,   38,   38,
       38,   38,   38,   38,   38,   38,   38,   38,   38,   35,
       35,   38,   40,   40,   41,   41,   46,   49,   50,   51,
       52,   54,   52,   62,   56,   56,   65,   65,   63,   75,

       55,   65,   42,   42,   47,   66,   66,   75,   55,   57,
       66,   64,   78,  111,   69,   74,   49,   50,   70,   76,
       54,   52,   64,   66,   66,   53,   81,   76,   66,   55,
       47,   59,   94,   80,   82,   75,   83,   55,   83,   92,
       84,   80,   82,   56,   56,   85,   85,   56,   56,   87,
       87,   56,   56,   75,   64,   76,   85,   85,   57,   93,
       81,  111,   57,   74,   88,   96,   57,   96,   82,   97,
       98,   64,   98,   76,   99,  110,   82,   56,   56,  104,
       59,   64,   59,  105,   59,   64,   89,  108,   59,   87,
       87,   64,   57,   59,  100,  100,  100,  100,  109,   64,

      107,  106,   99,   99,   88,   97,   97,  102,  101,   84,
       84,   95,   73,   71,   59,   65,   64,   91,   90,   61,
       53,   49,   79,   43,   77,   73,   89,   71,   68,   67,
       65,   89,   61,   89,   39,   39,   39,   39,   39,   39,
       39,   39,   45,   45,   53,   44,   45,   45,   45,   45,
       48,   48,   48,   48,   48,   48,   48,   48,   58,   58,
       43,  111,  111,  111,   58,   60,   60,   60,   60,   60,
       60,   60,   60,   64,   64,   64,   66,   66,   66,   72,
       72,   72,   74,   74,   74,   74,  111,   74,   74,   74,
       86,   86,  111,  111,   86,  111,   86,  103,  111,  103,

        7,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111
    } ;

static yyconst flex_int16_t yy_chk[343] =
    {   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,    1,    1,    1,    1,    1,    1,    1,
        1,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    5,    6,    5,    6,   12,   13,   13,   16,
       16,   19,   19,   23,   20,   20,   24,   30,   23,   39,

       19,   31,    5,    6,   12,   24,   30,   40,   19,   20,
       31,   32,   45,   42,   31,   42,   48,   48,   32,   39,
       52,   52,   70,   24,   30,   53,   54,   40,   31,   52,
       45,   20,   70,   53,   54,   74,   55,   52,   55,  122,
       55,   53,   54,   56,   56,   57,   57,   58,   58,   61,
       61,   65,   65,   75,   69,   74,   85,   85,   56,   69,
       81,   76,   58,   76,   61,   80,   65,   80,   81,   80,
       82,   93,   82,   75,   82,  109,   81,   86,   86,   93,
       56,   94,   57,   94,   58,  104,   61,  104,   65,   87,
       87,  108,   86,   85,   88,   88,  100,  100,  107,  105,

      102,  101,   99,   98,   87,   97,   96,   91,   90,   84,
       83,   77,   72,   71,   86,   66,   64,   63,   62,   60,
       51,   50,   46,   43,   41,   38,   87,   36,   29,   28,
       26,   88,   22,  100,  112,  112,  112,  112,  112,  112,
      112,  112,  113,  113,   18,   11,  113,  113,  113,  113,
      114,  114,  114,  114,  114,  114,  114,  114,  115,  115,
        9,    7,    0,    0,  115,  116,  116,  116,  116,  116,
      116,  116,  116,  117,  117,  117,  118,  118,  118,  119,
      119,  119,  120,  120,  120,  120,    0,  120,  120,  120,
      121,  121,    0,    0,  121,    0,  121,  123,    0,  123,

      111,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111,  111,  111,  111,  111,  111,  111,  111,  111,
      111,  111
    } ;

/* 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 "./turtle_lexer.l"
/* -*- Mode: c; c-basic-offset: 2 -*-
 *
 * turtle_lexer.l - Raptor Turtle lexer - making tokens for turtle grammar generator
 *
 * Copyright (C) 2003-2010, David Beckett http://www.dajobe.org/
 * Copyright (C) 2003-2005, University of Bristol, UK http://www.bristol.ac.uk/
 * 
 * This package is Free Software and part of Redland http://librdf.org/
 * 
 * It is licensed under the following three licenses as alternatives:
 *   1. GNU Lesser General Public License (LGPL) V2.1 or any newer version
 *   2. GNU General Public License (GPL) V2 or any newer version
 *   3. Apache License, V2.0 or any newer version
 * 
 * You may not use this file except in compliance with at least one of
 * the above three licenses.
 * 
 * See LICENSE.html or LICENSE.txt at the top of this package for the
 * complete terms and further detail along with the license texts for
 * the licenses in COPYING.LIB, COPYING and LICENSE-2.0.txt respectively.
 * 
 * 
 * Turtle is defined in http://www.dajobe.org/2004/01/turtle/
 *
 * To generate the C files from this source, rather than use the
 * shipped turtle_lexer.c/.h needs a patched version of flex 2.5.31 such
 * as the one available in Debian GNU/Linux.   Details below
 * near the %option descriptions.
 *
 */
/* recognise 8-bits */
/* all symbols prefixed by this */
/* This is not needed, flex is invoked -oturtle_lexer.c */
/* %option outfile="turtle_lexer.c" */
/* Emit a C header file for prototypes
 * Only available in flex 2.5.13 or newer.
 * It was renamed to header-file in flex 2.5.19
 */
/* Do not emit #include <unistd.h>
 * Only available in flex 2.5.7 or newer.
 * Broken in flex 2.5.31 without patches.
 */
#define YY_NO_UNISTD_H 1
/* Never interactive */
/*  No isatty() check */
/* Batch scanner */
/* Never use yyunput */
/* Supply our own alloc/realloc/free functions */
/* Re-entrant scanner */
/* definitions */
#line 77 "./turtle_lexer.l"

/* NOTE: These headers are NOT included here but are inserted by
 * fix-flex since otherwise it appears far too late in the generated C
 */

/*
#ifdef HAVE_CONFIG_H
#include <raptor_config.h>
#endif

#ifdef WIN32
#include <win32_raptor_config.h>
#endif
*/

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_SETJMP_H
#include <setjmp.h>
#endif

#include "raptor2.h"
#include "raptor_internal.h"

#include <turtle_parser.h>

#include <turtle_common.h>


/* Prototypes */ 
static unsigned char *turtle_copy_token(unsigned char *text, size_t len);
static unsigned char *turtle_copy_string_token(raptor_parser* rdf_parser, unsigned char *text, size_t len, int delim);
void turtle_lexer_syntax_error(void* ctx, const char *message, ...) RAPTOR_PRINTF_FORMAT(2, 3);

#ifdef RAPTOR_DEBUG
const char * turtle_token_print(raptor_world* world, int token, YYSTYPE *lval);
#endif

int turtle_lexer_lex (YYSTYPE *turtle_parser_lval, yyscan_t yyscanner);
#define YY_DECL int turtle_lexer_lex (YYSTYPE *turtle_parser_lval, yyscan_t yyscanner)

#ifdef __cplusplus
#define INPUT_FN yyinput
#else
#define INPUT_FN input
#endif


/* Missing turtle_lexer.c/h prototypes */
int turtle_lexer_get_column(yyscan_t yyscanner);
void turtle_lexer_set_column(int  column_no , yyscan_t yyscanner);

static void turtle_lexer_cleanup(yyscan_t yyscanner);

#ifdef HAVE_SETJMP
static jmp_buf turtle_lexer_fatal_error_longjmp_env;

/* fatal error handler declaration */
#define YY_FATAL_ERROR(msg) do {                                 \
    turtle_lexer_error(yyscanner, RAPTOR_LOG_LEVEL_FATAL, msg); \
    longjmp(turtle_lexer_fatal_error_longjmp_env, 1);            \
} while(0)
#else
#define YY_FATAL_ERROR(msg) do {                                  \
    turtle_lexer_error(yyscanner, RAPTOR_LOG_LEVEL_FATAL, msg);    \
    abort();                                                      \
} while(0)
#endif
 
static void turtle_lexer_error(yyscan_t yyscanner, raptor_log_level level, yyconst char *message, ...) RAPTOR_PRINTF_FORMAT(3, 4);

/* Fatal error handler that returns EOF instead of abort()/longjmp()
 * so that parser can clean up properly */
#define YY_FATAL_ERROR_EOF(msg) do { \
    turtle_lexer_error(yyscanner, RAPTOR_LOG_LEVEL_FATAL, "%s", msg);   \
    yyterminate(); \
} while(0)

/* Out-of-memory reporting macro */
#define TURTLE_LEXER_OOM() YY_FATAL_ERROR_EOF(turtle_lexer_oom_text)
static char turtle_lexer_oom_text[]="turtle_lexer: Out of memory";

/* Dot not need input() to to read from stdin */
#define YY_NO_INPUT 1

/* Tokens from SPARQL spec, adjusted for Turtle */
/* SPARQL allows . in prefix after first position.   Would be:
   NCNAME_PREFIX {NCCHAR1}(({NCCHAR}|".")*{NCCHAR})?
*/
/* SPARQL allows . in name after first position.  Would be:
  NCNAME ("_"|{NCCHAR1})(({NCCHAR}|".")*{NCCHAR})?
*/
/* similar to SPARQL but no need for <= check here */

#line 714 "turtle_lexer.c"

#define INITIAL 0
#define PREF 1
#define LITERAL 2

#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.
 */
#ifndef YY_NO_UNISTD_H
#include <unistd.h>
#endif
#endif

#define YY_EXTRA_TYPE raptor_parser*

/* 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;

    }; /* end struct yyguts_t */

static int yy_init_globals (yyscan_t yyscanner );

int turtle_lexer_lex_init (yyscan_t* scanner);

int turtle_lexer_lex_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 turtle_lexer_lex_destroy (yyscan_t yyscanner );

int turtle_lexer_get_debug (yyscan_t yyscanner );

void turtle_lexer_set_debug (int debug_flag ,yyscan_t yyscanner );

YY_EXTRA_TYPE turtle_lexer_get_extra (yyscan_t yyscanner );

void turtle_lexer_set_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscanner );

FILE *turtle_lexer_get_in (yyscan_t yyscanner );

void turtle_lexer_set_in  (FILE * in_str ,yyscan_t yyscanner );

FILE *turtle_lexer_get_out (yyscan_t yyscanner );

void turtle_lexer_set_out  (FILE * out_str ,yyscan_t yyscanner );

int turtle_lexer_get_leng (yyscan_t yyscanner );

char *turtle_lexer_get_text (yyscan_t yyscanner );

int turtle_lexer_get_lineno (yyscan_t yyscanner );

void turtle_lexer_set_lineno (int line_number ,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 turtle_lexer_wrap (yyscan_t yyscanner );
#else
extern int turtle_lexer_wrap (yyscan_t yyscanner );
#endif
#endif

#ifndef yytext_ptr
static void yy_flex_strncpy (char *,yyconst char *,int ,yyscan_t yyscanner);
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner);
#endif

#ifndef YY_NO_INPUT

#ifdef __cplusplus
static int yyinput (yyscan_t yyscanner );
#else
static int input (yyscan_t yyscanner );
#endif

#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#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, yyleng, 1, yyout )) {} } while (0)
#endif

/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
	if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
		{ \
		int c = '*'; \
		size_t n; \
		for ( n = 0; n < max_size && \
			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
			buf[n] = (char) c; \
		if ( c == '\n' ) \
			buf[n++] = (char) c; \
		if ( c == EOF && ferror( yyin ) ) \
			YY_FATAL_ERROR( "input in flex scanner failed" ); \
		result = n; \
		} \
	else \
		{ \
		errno=0; \
		while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
			{ \
			if( errno != EINTR) \
				{ \
				YY_FATAL_ERROR( "input in flex scanner failed" ); \
				break; \
				} \
			errno=0; \
			clearerr(yyin); \
			} \
		}\
\

#endif

/* No semi-colon after return; correct usage is to write "yyterminate();" -
 * we don't want an extra ';' after the "return" because that will cause
 * some compilers to complain about unreachable statements.
 */
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif

/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif

/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg , yyscanner)
#endif

/* end tables serialization structures and prototypes */

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL_IS_OURS 1

extern int turtle_lexer_lex (yyscan_t yyscanner);

#define YY_DECL int turtle_lexer_lex (yyscan_t yyscanner)
#endif /* !YY_DECL */

/* Code executed at the beginning of each rule, after yytext and yyleng
 * have been set up.
 */
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif

/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif

#define YY_RULE_SETUP \
	YY_USER_ACTION

/** The main scanner function which does all the work.
 */
YY_DECL
{
	register yy_state_type yy_current_state;
	register char *yy_cp, *yy_bp;
	register int yy_act;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

#line 198 "./turtle_lexer.l"

  /* rules */


  raptor_parser *rdf_parser = yyextra;
  raptor_turtle_parser* turtle_parser = (raptor_turtle_parser*)rdf_parser->context;

#ifdef HAVE_SETJMP
  if(setjmp(turtle_lexer_fatal_error_longjmp_env))
    return 1;
#endif

    

#line 955 "turtle_lexer.c"

	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 ) {
			turtle_lexer_ensure_buffer_stack (yyscanner);
			YY_CURRENT_BUFFER_LVALUE =
				turtle_lexer__create_buffer(yyin,YY_BUF_SIZE ,yyscanner);
		}

		turtle_lexer__load_buffer_state(yyscanner );
		}

	while ( 1 )		/* loops until end-of-file is reached */
		{
		yy_cp = yyg->yy_c_buf_p;

		/* Support of yytext. */
		*yy_cp = yyg->yy_hold_char;

		/* yy_bp points to the position in yy_ch_buf of the start of
		 * the current run.
		 */
		yy_bp = yy_cp;

		yy_current_state = yyg->yy_start;
yy_match:
		do
			{
			register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
			if ( yy_accept[yy_current_state] )
				{
				yyg->yy_last_accepting_state = yy_current_state;
				yyg->yy_last_accepting_cpos = yy_cp;
				}
			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
				{
				yy_current_state = (int) yy_def[yy_current_state];
				if ( yy_current_state >= 112 )
					yy_c = yy_meta[(unsigned int) yy_c];
				}
			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
			++yy_cp;
			}
		while ( yy_current_state != 111 );
		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 212 "./turtle_lexer.l"
{ turtle_parser->lineno++; }
	YY_BREAK
case 2:
YY_RULE_SETUP
#line 214 "./turtle_lexer.l"
{ /* empty */ }
	YY_BREAK
case 3:
YY_RULE_SETUP
#line 217 "./turtle_lexer.l"
{ return A; }
	YY_BREAK
case 4:
YY_RULE_SETUP
#line 219 "./turtle_lexer.l"
{ return DOT; } 
	YY_BREAK
case 5:
YY_RULE_SETUP
#line 220 "./turtle_lexer.l"
{ return COMMA; } 
	YY_BREAK
case 6:
YY_RULE_SETUP
#line 221 "./turtle_lexer.l"
{ return SEMICOLON; }
	YY_BREAK
case 7:
YY_RULE_SETUP
#line 222 "./turtle_lexer.l"
{ return LEFT_SQUARE; }
	YY_BREAK
case 8:
YY_RULE_SETUP
#line 223 "./turtle_lexer.l"
{ return RIGHT_SQUARE; }
	YY_BREAK
case 9:
YY_RULE_SETUP
#line 224 "./turtle_lexer.l"
{ BEGIN(PREF); return PREFIX; }
	YY_BREAK
case 10:
YY_RULE_SETUP
#line 225 "./turtle_lexer.l"
{ return BASE; }
	YY_BREAK
case 11:
YY_RULE_SETUP
#line 226 "./turtle_lexer.l"
{ return AT; }
	YY_BREAK
case 12:
YY_RULE_SETUP
#line 227 "./turtle_lexer.l"
{ return HAT; }
	YY_BREAK
case 13:
YY_RULE_SETUP
#line 228 "./turtle_lexer.l"
{ return LEFT_ROUND; }
	YY_BREAK
case 14:
YY_RULE_SETUP
#line 229 "./turtle_lexer.l"
{ return RIGHT_ROUND; }
	YY_BREAK
case 15:
YY_RULE_SETUP
#line 230 "./turtle_lexer.l"
{ return LEFT_CURLY; }
	YY_BREAK
case 16:
YY_RULE_SETUP
#line 231 "./turtle_lexer.l"
{ return RIGHT_CURLY; }
	YY_BREAK
case 17:
YY_RULE_SETUP
#line 232 "./turtle_lexer.l"
{ return TRUE_TOKEN; }
	YY_BREAK
case 18:
YY_RULE_SETUP
#line 233 "./turtle_lexer.l"
{ return FALSE_TOKEN; }
	YY_BREAK
case 19:
YY_RULE_SETUP
#line 236 "./turtle_lexer.l"
{ turtle_parser_lval->string = turtle_copy_string_token(rdf_parser, (unsigned char*)yytext+1, yyleng-2, '"'); /* ' */
                                if(!turtle_parser_lval->string)
                                  yyterminate();

                                return STRING_LITERAL; }
	YY_BREAK
case 20:
YY_RULE_SETUP
#line 242 "./turtle_lexer.l"
{ BEGIN(LITERAL); 
                                  turtle_parser->sb = raptor_new_stringbuffer();
                                  if(!turtle_parser->sb)
                                    TURTLE_LEXER_OOM();
                          }
	YY_BREAK
case 21:
YY_RULE_SETUP
#line 248 "./turtle_lexer.l"
{
		  size_t len;
     
		  BEGIN(INITIAL);
                  len = raptor_stringbuffer_length(turtle_parser->sb);
                  turtle_parser_lval->string = RAPTOR_MALLOC(unsigned char*, len + 1);
                  if(!turtle_parser_lval->string)
                    TURTLE_LEXER_OOM();
                  raptor_stringbuffer_copy_to_string(turtle_parser->sb, (unsigned char*)turtle_parser_lval->string, len);
                  turtle_parser_lval->string[len]='\0';

                  raptor_free_stringbuffer(turtle_parser->sb);
                  turtle_parser->sb = NULL;
                  return STRING_LITERAL; }
	YY_BREAK
case 22:
/* rule 22 can match eol */
YY_RULE_SETUP
#line 263 "./turtle_lexer.l"
{
		  char *p;

		  if(*yytext == EOF) {
                    BEGIN(INITIAL);
                    turtle_syntax_error(rdf_parser, "End of file in middle of literal");
                    raptor_free_stringbuffer(turtle_parser->sb);
                    turtle_parser->sb = NULL;
                    return EOF;
                  }

		  for(p = yytext; *p; p++) {
                    if(*p == '\n')
                      turtle_parser->lineno++;
                  }

                  if(raptor_stringbuffer_append_turtle_string(turtle_parser->sb, (unsigned char*)yytext, yyleng, '"', (raptor_simple_message_handler)turtle_lexer_syntax_error, rdf_parser)) { /* " */
                    BEGIN(INITIAL);
                    raptor_free_stringbuffer(turtle_parser->sb);
                    turtle_parser->sb = NULL;
                    YY_FATAL_ERROR_EOF("raptor_stringbuffer_append_turtle_string failed");
                  }
                  
   }
	YY_BREAK
case 23:
YY_RULE_SETUP
#line 288 "./turtle_lexer.l"
{
     		/* this should only happen if \ is at the end of the file so the Turtle doc is illegal anyway */
                    BEGIN(INITIAL);
                    raptor_free_stringbuffer(turtle_parser->sb);
                    turtle_parser->sb = NULL;
                    turtle_syntax_error(rdf_parser, "End of file in middle of literal");
                    yyterminate();
}
	YY_BREAK
case YY_STATE_EOF(LITERAL):
#line 297 "./turtle_lexer.l"
{
                    BEGIN(INITIAL);
                    raptor_free_stringbuffer(turtle_parser->sb);
                    turtle_parser->sb = NULL;
                    turtle_syntax_error(rdf_parser, "End of file in middle of literal");
                    yyterminate();
}
	YY_BREAK
case 24:
YY_RULE_SETUP
#line 305 "./turtle_lexer.l"
{ turtle_parser_lval->string = turtle_copy_token((unsigned char*)yytext+2, yyleng-2);
          if(!turtle_parser_lval->string)
            YY_FATAL_ERROR_EOF("turtle_copy_token failed");
                          return BLANK_LITERAL; }
	YY_BREAK
case 25:
YY_RULE_SETUP
#line 310 "./turtle_lexer.l"
{ turtle_parser_lval->uri = turtle_qname_to_uri(rdf_parser, (unsigned char*)yytext, yyleng);
          if(!turtle_parser_lval->uri) {
            turtle_lexer_error(yyscanner, RAPTOR_LOG_LEVEL_ERROR, "Failed to convert qname %s to URI", yytext);
            yyterminate();
          }

                          return QNAME_LITERAL; }
	YY_BREAK
case 26:
YY_RULE_SETUP
#line 318 "./turtle_lexer.l"
{ turtle_parser_lval->string = turtle_copy_token((unsigned char*)yytext, yyleng);
                  if(!turtle_parser_lval->string)
                    YY_FATAL_ERROR_EOF("turtle_copy_token failed");
                        return DECIMAL_LITERAL;
}
	YY_BREAK
case 27:
YY_RULE_SETUP
#line 324 "./turtle_lexer.l"
{ turtle_parser_lval->string = turtle_copy_token((unsigned char*)yytext, yyleng);
                  if(!turtle_parser_lval->string)
                    YY_FATAL_ERROR_EOF("turtle_copy_token failed");
                        return FLOATING_LITERAL;
}
	YY_BREAK
case 28:
YY_RULE_SETUP
#line 330 "./turtle_lexer.l"
{ turtle_parser_lval->string = turtle_copy_token((unsigned char*)yytext, yyleng);
                  if(!turtle_parser_lval->string)
                    YY_FATAL_ERROR_EOF("turtle_copy_token failed");
                          return INTEGER_LITERAL; }
	YY_BREAK
case 29:
YY_RULE_SETUP
#line 335 "./turtle_lexer.l"
{ /* eat up leading whitespace */ }
	YY_BREAK
case 30:
YY_RULE_SETUP
#line 336 "./turtle_lexer.l"
{ turtle_parser_lval->string=turtle_copy_token((unsigned char*)yytext, yyleng);
                            if(!turtle_parser_lval->string)
                              YY_FATAL_ERROR_EOF("turtle_copy_token failed");
                          BEGIN(INITIAL);
                          return IDENTIFIER; }
	YY_BREAK
case 31:
YY_RULE_SETUP
#line 341 "./turtle_lexer.l"
{ BEGIN(INITIAL);
		  turtle_parser_lval->string = turtle_copy_token((unsigned char*)yytext, 0);
      if(!turtle_parser_lval->string)
        YY_FATAL_ERROR_EOF("turtle_copy_token failed");
                  return IDENTIFIER; }
	YY_BREAK
case 32:
/* rule 32 can match eol */
YY_RULE_SETUP
#line 347 "./turtle_lexer.l"
{ BEGIN(INITIAL);
		  if(*yytext == EOF)
                    return EOF;

                  turtle_syntax_error(rdf_parser, "syntax error at '%c'", *yytext);
                  yyterminate();  }
	YY_BREAK
case 33:
/* rule 33 can match eol */
YY_RULE_SETUP
#line 355 "./turtle_lexer.l"
{
                  raptor_stringbuffer* sb;
                  unsigned char* uri_string;

                  /* make length just the QUOTEDURI */
                  while(yytext[yyleng - 1] != '>')
                    yyleng--;

                  sb = raptor_new_stringbuffer();
                  if(!sb)
                    TURTLE_LEXER_OOM();

                  /* start at yytext + 1 to skip '<' and operate over
                   * length-2 bytes to skip '<' and '>'
                   */
                  if(raptor_stringbuffer_append_turtle_string(sb, (unsigned char*)yytext+1, yyleng-2, '>', (raptor_simple_message_handler)turtle_lexer_syntax_error, rdf_parser)) {
                    raptor_free_stringbuffer(sb);
                    YY_FATAL_ERROR_EOF("raptor_stringbuffer_append_turtle_string failed");
                  }
                  uri_string = raptor_stringbuffer_as_string(sb);

                  if(!*uri_string)
                    turtle_parser_lval->uri = raptor_uri_copy(rdf_parser->base_uri);
                  else
                    turtle_parser_lval->uri = raptor_new_uri_relative_to_base(rdf_parser->world, rdf_parser->base_uri, uri_string);

                  raptor_free_stringbuffer(sb);

                  if(!turtle_parser_lval->uri)
                    TURTLE_LEXER_OOM();
                return GRAPH_NAME_LEFT_CURLY; }
	YY_BREAK
case 34:
/* rule 34 can match eol */
YY_RULE_SETUP
#line 387 "./turtle_lexer.l"
{
               while(1) {
                  int c = yytext[yyleng - 1];
                  if(c == '{' || c == ' ' || c=='\t' || c == '\v' || c == '\n' ||
                     c == '=') {
                    yyleng--;
                  } else
                    break;
                }
                yytext[yyleng] = '\0';

                turtle_parser_lval->uri = turtle_qname_to_uri(rdf_parser, (unsigned char*)yytext, yyleng);
                if(!turtle_parser_lval->uri) {
                  turtle_lexer_error(yyscanner, RAPTOR_LOG_LEVEL_ERROR, "Failed to convert qname %s to URI", yytext);
                  yyterminate();
                }

                return GRAPH_NAME_LEFT_CURLY; }
	YY_BREAK
case 35:
/* rule 35 can match eol */
YY_RULE_SETUP
#line 406 "./turtle_lexer.l"
{ if(yyleng == 2) 
                  turtle_parser_lval->uri = raptor_uri_copy(rdf_parser->base_uri);
                else {
                  raptor_stringbuffer* sb;
                  unsigned char* uri_string;

                  yytext[yyleng-1]='\0';
                  sb = raptor_new_stringbuffer();
                  if(!sb)
                    TURTLE_LEXER_OOM();
                  if(raptor_stringbuffer_append_turtle_string(sb, (unsigned char*)yytext+1, yyleng-1, '>', (raptor_simple_message_handler)turtle_lexer_syntax_error, rdf_parser)) {
                    raptor_free_stringbuffer(sb);
                    YY_FATAL_ERROR_EOF("raptor_stringbuffer_append_turtle_string failed");
                  }
                  uri_string = raptor_stringbuffer_as_string(sb);
                  turtle_parser_lval->uri = raptor_new_uri_relative_to_base(rdf_parser->world, rdf_parser->base_uri, uri_string);
                  if(!turtle_parser_lval->uri) {
                    raptor_free_stringbuffer(sb);
                    TURTLE_LEXER_OOM();
                  }
                  raptor_free_stringbuffer(sb);
                }
                return URI_LITERAL; }
	YY_BREAK
case 36:
YY_RULE_SETUP
#line 430 "./turtle_lexer.l"
{ turtle_parser_lval->string = turtle_copy_token((unsigned char*)yytext, yyleng);
                  if(!turtle_parser_lval->string)
                    YY_FATAL_ERROR_EOF("turtle_copy_token failed");
                          return IDENTIFIER; }
	YY_BREAK
case 37:
/* rule 37 can match eol */
YY_RULE_SETUP
#line 435 "./turtle_lexer.l"
{ /* # comment */
		turtle_parser->lineno++;
                }
	YY_BREAK
case 38:
YY_RULE_SETUP
#line 439 "./turtle_lexer.l"
{ /* # comment on the last line with no terminating newline */
                }
	YY_BREAK
case 39:
YY_RULE_SETUP
#line 442 "./turtle_lexer.l"
{ if(*yytext == EOF)
                    return EOF;

                  turtle_syntax_error(rdf_parser, "syntax error at '%c'", *yytext);
                  yyterminate();
		}
	YY_BREAK
case 40:
YY_RULE_SETUP
#line 449 "./turtle_lexer.l"
YY_FATAL_ERROR( "flex scanner jammed" );
	YY_BREAK
#line 1415 "turtle_lexer.c"
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(PREF):
	yyterminate();

	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
			 * turtle_lexer_lex().  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 ( turtle_lexer_wrap(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 turtle_lexer_lex */

/* yy_get_next_buffer - try to read in a new buffer
 *
 * Returns a code representing an action:
 *	EOB_ACT_LAST_MATCH -
 *	EOB_ACT_CONTINUE_SCAN - continue scanning from current position
 *	EOB_ACT_END_OF_FILE - end of file
 */
static int yy_get_next_buffer (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
	register char *source = yyg->yytext_ptr;
	register int number_to_move, i;
	int ret_val;

	if ( yyg->yy_c_buf_p > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] )
		YY_FATAL_ERROR(
		"fatal flex scanner internal error--end of buffer missed" );

	if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
		{ /* Don't try to fill the buffer, so this is an EOF. */
		if ( yyg->yy_c_buf_p - yyg->yytext_ptr - YY_MORE_ADJ == 1 )
			{
			/* We matched a single character, the EOB, so
			 * treat this as a final EOF.
			 */
			return EOB_ACT_END_OF_FILE;
			}

		else
			{
			/* We matched some text prior to the EOB, first
			 * process it.
			 */
			return EOB_ACT_LAST_MATCH;
			}
		}

	/* Try to read more data. */

	/* First move last chars to start of buffer. */
	number_to_move = (int) (yyg->yy_c_buf_p - yyg->yytext_ptr) - 1;

	for ( i = 0; i < number_to_move; ++i )
		*(dest++) = *(source++);

	if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
		/* don't do the read, it's not guaranteed to return an EOF,
		 * just force an EOF
		 */
		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars = 0;

	else
		{
			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;

			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. */
					turtle_lexer_realloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ,yyscanner );
				}
			else
				/* Can't grow it, we don't own it. */
				b->yy_ch_buf = 0;

			if ( ! b->yy_ch_buf )
				YY_FATAL_ERROR(
				"fatal error - scanner input buffer overflow" );

			yyg->yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset];

			num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
						number_to_move - 1;

			}

		if ( num_to_read > YY_READ_BUF_SIZE )
			num_to_read = YY_READ_BUF_SIZE;

		/* Read in more data. */
		YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
			yyg->yy_n_chars, num_to_read );

		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
		}

	if ( yyg->yy_n_chars == 0 )
		{
		if ( number_to_move == YY_MORE_ADJ )
			{
			ret_val = EOB_ACT_END_OF_FILE;
			turtle_lexer_restart(yyin  ,yyscanner);
			}

		else
			{
			ret_val = EOB_ACT_LAST_MATCH;
			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
				YY_BUFFER_EOF_PENDING;
			}
		}

	else
		ret_val = EOB_ACT_CONTINUE_SCAN;

	if ((yy_size_t) (yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
		/* Extend the array by 50%, plus the number we really need. */
		yy_size_t new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1);
		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) turtle_lexer_realloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ,yyscanner );
		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
	}

	yyg->yy_n_chars += number_to_move;
	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] = YY_END_OF_BUFFER_CHAR;
	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;

	yyg->yytext_ptr = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];

	return ret_val;
}

/* yy_get_previous_state - get the state just before the EOB char was reached */

    static yy_state_type yy_get_previous_state (yyscan_t yyscanner)
{
	register yy_state_type yy_current_state;
	register char *yy_cp;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	yy_current_state = yyg->yy_start;

	for ( yy_cp = yyg->yytext_ptr + YY_MORE_ADJ; yy_cp < yyg->yy_c_buf_p; ++yy_cp )
		{
		register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
		if ( yy_accept[yy_current_state] )
			{
			yyg->yy_last_accepting_state = yy_current_state;
			yyg->yy_last_accepting_cpos = yy_cp;
			}
		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
			{
			yy_current_state = (int) yy_def[yy_current_state];
			if ( yy_current_state >= 112 )
				yy_c = yy_meta[(unsigned int) yy_c];
			}
		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
		}

	return yy_current_state;
}

/* yy_try_NUL_trans - try to make a transition on the NUL character
 *
 * synopsis
 *	next_state = yy_try_NUL_trans( current_state );
 */
    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state , yyscan_t yyscanner)
{
	register int yy_is_jam;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* This var may be unused depending upon options. */
	register char *yy_cp = yyg->yy_c_buf_p;

	register YY_CHAR yy_c = 1;
	if ( yy_accept[yy_current_state] )
		{
		yyg->yy_last_accepting_state = yy_current_state;
		yyg->yy_last_accepting_cpos = yy_cp;
		}
	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
		{
		yy_current_state = (int) yy_def[yy_current_state];
		if ( yy_current_state >= 112 )
			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 == 111);

	return yy_is_jam ? 0 : yy_current_state;
}

#ifndef YY_NO_INPUT
#ifdef __cplusplus
    static int yyinput (yyscan_t yyscanner)
#else
    static int input  (yyscan_t yyscanner)
#endif

{
	int c;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	*yyg->yy_c_buf_p = yyg->yy_hold_char;

	if ( *yyg->yy_c_buf_p == YY_END_OF_BUFFER_CHAR )
		{
		/* yy_c_buf_p now points to the character we want to return.
		 * If this occurs *before* the EOB characters, then it's a
		 * valid NUL; if not, then we've hit the end of the buffer.
		 */
		if ( yyg->yy_c_buf_p < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] )
			/* This was really a NUL. */
			*yyg->yy_c_buf_p = '\0';

		else
			{ /* need more input */
			int offset = yyg->yy_c_buf_p - yyg->yytext_ptr;
			++yyg->yy_c_buf_p;

			switch ( yy_get_next_buffer( yyscanner ) )
				{
				case EOB_ACT_LAST_MATCH:
					/* This happens because yy_g_n_b()
					 * sees that we've accumulated a
					 * token and flags that we need to
					 * try matching the token before
					 * proceeding.  But for input(),
					 * there's no matching to consider.
					 * So convert the EOB_ACT_LAST_MATCH
					 * to EOB_ACT_END_OF_FILE.
					 */

					/* Reset buffer status. */
					turtle_lexer_restart(yyin ,yyscanner);

					/*FALLTHROUGH*/

				case EOB_ACT_END_OF_FILE:
					{
					if ( turtle_lexer_wrap(yyscanner ) )
						return EOF;

					if ( ! yyg->yy_did_buffer_switch_on_eof )
						YY_NEW_FILE;
#ifdef __cplusplus
					return yyinput(yyscanner);
#else
					return input(yyscanner);
#endif
					}

				case EOB_ACT_CONTINUE_SCAN:
					yyg->yy_c_buf_p = yyg->yytext_ptr + offset;
					break;
				}
			}
		}

	c = *(unsigned char *) yyg->yy_c_buf_p;	/* cast for 8-bit char's */
	*yyg->yy_c_buf_p = '\0';	/* preserve yytext */
	yyg->yy_hold_char = *++yyg->yy_c_buf_p;

	return c;
}
#endif	/* ifndef YY_NO_INPUT */

/** Immediately switch to a different input stream.
 * @param input_file A readable stream.
 * @param yyscanner The scanner object.
 * @note This function does not reset the start condition to @c INITIAL .
 */
    void turtle_lexer_restart  (FILE * input_file , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	if ( ! YY_CURRENT_BUFFER ){
        turtle_lexer_ensure_buffer_stack (yyscanner);
		YY_CURRENT_BUFFER_LVALUE =
            turtle_lexer__create_buffer(yyin,YY_BUF_SIZE ,yyscanner);
	}

	turtle_lexer__init_buffer(YY_CURRENT_BUFFER,input_file ,yyscanner);
	turtle_lexer__load_buffer_state(yyscanner );
}

/** Switch to a different input buffer.
 * @param new_buffer The new input buffer.
 * @param yyscanner The scanner object.
 */
    void turtle_lexer__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
	 *		turtle_lexer_pop_buffer_state();
	 *		turtle_lexer_push_buffer_state(new_buffer);
     */
	turtle_lexer_ensure_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;
	turtle_lexer__load_buffer_state(yyscanner );

	/* We don't actually know whether we did this switch during
	 * EOF (turtle_lexer_wrap()) processing, but the only time this flag
	 * is looked at is after turtle_lexer_wrap() is called, so it's safe
	 * to go ahead and always set it.
	 */
	yyg->yy_did_buffer_switch_on_eof = 1;
}

static void turtle_lexer__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 turtle_lexer__create_buffer  (FILE * file, int  size , yyscan_t yyscanner)
{
	YY_BUFFER_STATE b;
    
	b = (YY_BUFFER_STATE) turtle_lexer_alloc(sizeof( struct yy_buffer_state ) ,yyscanner );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in turtle_lexer__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 *) turtle_lexer_alloc(b->yy_buf_size + 2 ,yyscanner );
	if ( ! b->yy_ch_buf )
		YY_FATAL_ERROR( "out of dynamic memory in turtle_lexer__create_buffer()" );

	b->yy_is_our_buffer = 1;

	turtle_lexer__init_buffer(b,file ,yyscanner);

	return b;
}

/** Destroy the buffer.
 * @param b a buffer created with turtle_lexer__create_buffer()
 * @param yyscanner The scanner object.
 */
    void turtle_lexer__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 )
		turtle_lexer_free((void *) b->yy_ch_buf ,yyscanner );

	turtle_lexer_free((void *) b ,yyscanner );
}

/* Initializes or reinitializes a buffer.
 * This function is sometimes called more than once on the same buffer,
 * such as during a turtle_lexer_restart() or at EOF.
 */
    static void turtle_lexer__init_buffer  (YY_BUFFER_STATE  b, FILE * file , yyscan_t yyscanner)

{
	int oerrno = errno;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	turtle_lexer__flush_buffer(b ,yyscanner);

	b->yy_input_file = file;
	b->yy_fill_buffer = 1;

    /* If b is the current buffer, then turtle_lexer__init_buffer was _probably_
     * called from turtle_lexer_restart() 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 turtle_lexer__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 )
		turtle_lexer__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 turtle_lexer_push_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	if (new_buffer == NULL)
		return;

	turtle_lexer_ensure_buffer_stack(yyscanner);

	/* This block is copied from turtle_lexer__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 turtle_lexer__switch_to_buffer. */
	turtle_lexer__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 turtle_lexer_pop_buffer_state (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
	if (!YY_CURRENT_BUFFER)
		return;

	turtle_lexer__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) {
		turtle_lexer__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 turtle_lexer_ensure_buffer_stack (yyscan_t yyscanner)
{
	int num_to_alloc;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

	if (!yyg->yy_buffer_stack) {

		/* First allocation is just for 2 elements, since we don't know if this
		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
		 * immediate realloc on the next call.
         */
		num_to_alloc = 1;
		yyg->yy_buffer_stack = (struct yy_buffer_state**)turtle_lexer_alloc
								(num_to_alloc * sizeof(struct yy_buffer_state*)
								, yyscanner);
		if ( ! yyg->yy_buffer_stack )
			YY_FATAL_ERROR( "out of dynamic memory in turtle_lexer_ensure_buffer_stack()" );
								  
		memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*));
				
		yyg->yy_buffer_stack_max = num_to_alloc;
		yyg->yy_buffer_stack_top = 0;
		return;
	}

	if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){

		/* Increase the buffer to prepare for a possible push. */
		int grow_size = 8 /* arbitrary grow size */;

		num_to_alloc = yyg->yy_buffer_stack_max + grow_size;
		yyg->yy_buffer_stack = (struct yy_buffer_state**)turtle_lexer_realloc
								(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 turtle_lexer_ensure_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 turtle_lexer__scan_buffer  (char * base, yy_size_t  size , yyscan_t yyscanner)
{
	YY_BUFFER_STATE b;
    
	if ( size < 2 ||
	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
	     base[size-1] != YY_END_OF_BUFFER_CHAR )
		/* They forgot to leave room for the EOB's. */
		return 0;

	b = (YY_BUFFER_STATE) turtle_lexer_alloc(sizeof( struct yy_buffer_state ) ,yyscanner );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in turtle_lexer__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;

	turtle_lexer__switch_to_buffer(b ,yyscanner );

	return b;
}

/** Setup the input buffer state to scan a string. The next call to turtle_lexer_lex() 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
 *       turtle_lexer__scan_bytes() instead.
 */
YY_BUFFER_STATE turtle_lexer__scan_string (yyconst char * yystr , yyscan_t yyscanner)
{
    
	return turtle_lexer__scan_bytes(yystr,strlen(yystr) ,yyscanner);
}

/** Setup the input buffer state to scan the given bytes. The next call to turtle_lexer_lex() 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 turtle_lexer__scan_bytes  (yyconst 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 = _yybytes_len + 2;
	buf = (char *) turtle_lexer_alloc(n ,yyscanner );
	if ( ! buf )
		YY_FATAL_ERROR( "out of dynamic memory in turtle_lexer__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 = turtle_lexer__scan_buffer(buf,n ,yyscanner);
	if ( ! b )
		YY_FATAL_ERROR( "bad buffer in turtle_lexer__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


/* 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 turtle_lexer_get_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 turtle_lexer_get_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 turtle_lexer_get_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 *turtle_lexer_get_in  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyin;
}

/** Get the output stream.
 * @param yyscanner The scanner object.
 */
FILE *turtle_lexer_get_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 turtle_lexer_get_leng  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyleng;
}

/** Get the current token.
 * @param yyscanner The scanner object.
 */

char *turtle_lexer_get_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 turtle_lexer_set_extra (YY_EXTRA_TYPE  user_defined , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yyextra = user_defined ;
}

/** Set the current line number.
 * @param line_number
 * @param yyscanner The scanner object.
 */
void turtle_lexer_set_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("turtle_lexer_set_lineno called with no buffer"); 
    
    yylineno = line_number;
}

/** Set the current column.
 * @param line_number
 * @param yyscanner The scanner object.
 */
void turtle_lexer_set_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("turtle_lexer_set_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 turtle_lexer__switch_to_buffer
 */
void turtle_lexer_set_in (FILE *  in_str , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yyin = in_str ;
}

void turtle_lexer_set_out (FILE *  out_str , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yyout = out_str ;
}

int turtle_lexer_get_debug  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yy_flex_debug;
}

void turtle_lexer_set_debug (int  bdebug , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yy_flex_debug = bdebug ;
}

/* Accessor methods for yylval and yylloc */

/* User-visible API */

/* turtle_lexer_lex_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 turtle_lexer_lex_init(yyscan_t* ptr_yy_globals)

{
    if (ptr_yy_globals == NULL){
        errno = EINVAL;
        return 1;
    }

    *ptr_yy_globals = (yyscan_t) turtle_lexer_alloc ( 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 );
}

/* turtle_lexer_lex_init_extra has the same functionality as turtle_lexer_lex_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 turtle_lexer_alloc in
 * the yyextra field.
 */

int turtle_lexer_lex_init_extra(YY_EXTRA_TYPE yy_user_defined,yyscan_t* ptr_yy_globals )

{
    struct yyguts_t dummy_yyguts;

    turtle_lexer_set_extra (yy_user_defined, &dummy_yyguts);

    if (ptr_yy_globals == NULL){
        errno = EINVAL;
        return 1;
    }
	
    *ptr_yy_globals = (yyscan_t) turtle_lexer_alloc ( 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));
    
    turtle_lexer_set_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 turtle_lexer_lex_destroy(), so don't allocate here.
     */

    yyg->yy_buffer_stack = 0;
    yyg->yy_buffer_stack_top = 0;
    yyg->yy_buffer_stack_max = 0;
    yyg->yy_c_buf_p = (char *) 0;
    yyg->yy_init = 0;
    yyg->yy_start = 0;

    yyg->yy_start_stack_ptr = 0;
    yyg->yy_start_stack_depth = 0;
    yyg->yy_start_stack =  NULL;

/* Defined in main.c */
#ifdef YY_STDINIT
    yyin = stdin;
    yyout = stdout;
#else
    yyin = (FILE *) 0;
    yyout = (FILE *) 0;
#endif

    /* For future reference: Set errno on error, since we are called by
     * turtle_lexer_lex_init()
     */
    return 0;
}

/* turtle_lexer_lex_destroy is for both reentrant and non-reentrant scanners. */
int turtle_lexer_lex_destroy  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

    /* Pop the buffer stack, destroying each element. */
	while(YY_CURRENT_BUFFER){
		turtle_lexer__delete_buffer(YY_CURRENT_BUFFER ,yyscanner );
		YY_CURRENT_BUFFER_LVALUE = NULL;
		turtle_lexer_pop_buffer_state(yyscanner);
	}

	/* Destroy the stack itself. */
	turtle_lexer_free(yyg->yy_buffer_stack ,yyscanner);
	yyg->yy_buffer_stack = NULL;

    /* Destroy the start condition stack. */
        turtle_lexer_free(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
     * turtle_lexer_lex() is called, initialization will occur. */
    yy_init_globals( yyscanner);

    /* Destroy the main struct (reentrant only). */
    /* clean up leaks if any before freeing yyscanner */
    turtle_lexer_cleanup(yyscanner);
    turtle_lexer_free ( yyscanner , yyscanner );
    yyscanner = NULL;
    return 0;
}

/*
 * Internal utility routines.
 */

#ifndef yytext_ptr
static void yy_flex_strncpy (char* s1, yyconst char * s2, int n , yyscan_t yyscanner)
{
	register int i;
	for ( i = 0; i < n; ++i )
		s1[i] = s2[i];
}
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner)
{
	register int n;
	for ( n = 0; s[n]; ++n )
		;

	return n;
}
#endif

#define YYTABLES_NAME "yytables"

#line 449 "./turtle_lexer.l"


  /* user code */

int
turtle_lexer_wrap (yyscan_t yyscanner) {
  return 1;
}


static unsigned char *
turtle_copy_token(unsigned char *text, size_t len)
{
  unsigned char *s;
  if(!len)
    len = strlen((const char*)text);
  s = RAPTOR_MALLOC(unsigned char*, len + 1);
  if(s) {
    memcpy(s, text, len);
    s[len] = '\0';
  }
  return s;
}


static unsigned char *
turtle_copy_string_token(raptor_parser* rdf_parser, 
                         unsigned char *string, size_t len, int delim)
{
  raptor_stringbuffer* sb = NULL;
  int rc;
  
  if(len) {
    sb = raptor_new_stringbuffer();
    if(!sb)
      return NULL;
    
    rc = raptor_stringbuffer_append_turtle_string(sb, string, len, delim,
                                                (raptor_simple_message_handler)turtle_lexer_syntax_error,
                                                rdf_parser);
    if(rc) {
      raptor_free_stringbuffer(sb);
      return NULL;
    }

    len = raptor_stringbuffer_length(sb);
  }
  
  string = RAPTOR_MALLOC(unsigned char*, len + 1);
  if(string) {
    if(sb) 
      raptor_stringbuffer_copy_to_string(sb, string, len+1);
    string[len]='\0';
  }

  if(sb)
    raptor_free_stringbuffer(sb);
  
  return string;
}


void
turtle_lexer_syntax_error(void* ctx, const char *message, ...)
{
  raptor_parser* rdf_parser = (raptor_parser *)ctx;
  raptor_turtle_parser* turtle_parser = (raptor_turtle_parser*)rdf_parser->context;
  va_list arguments;
  
  rdf_parser->locator.line = turtle_parser->lineno;
#ifdef RAPTOR_TURTLE_USE_ERROR_COLUMNS
  rdf_parser->locator.column = turtle_lexer_get_column(yyscanner);
#endif

  va_start(arguments, message);
  raptor_parser_log_error_varargs(((raptor_parser*)rdf_parser),
                                  RAPTOR_LOG_LEVEL_ERROR, message, arguments);

  va_end(arguments);
}


/*
 * turtle_lexer_error:
 * @yyscanner: scanner object
 * @level: log level RAPTOR_LOG_LEVEL_FATAL otherwise error
 * @message: erro message
 *
 * INTERNAL - replacement for the generated error handler.
 */
static void turtle_lexer_error(yyscan_t yyscanner,
                               raptor_log_level level,
                               yyconst char *message, ...)
{
  raptor_parser *rdf_parser = NULL;
  va_list arguments;

  va_start(arguments, message);

  if(yyscanner)
    rdf_parser = (raptor_parser*)turtle_lexer_get_extra(yyscanner);

  /* This handles NULL rdf_parser properly */
  raptor_parser_log_error_varargs(rdf_parser, level, message, arguments);

  va_end(arguments);
}


/* Define LEXER_ALLOC_TRACKING to enable allocated memory tracking
 * - fixes lexer memory leak when ensure_buffer_stack fails
 */

#ifdef LEXER_ALLOC_TRACKING
typedef struct {
  /* Number of void* slots allocated */
  int lexer_allocs_size;
  /* Allocted void* slots follow in memory after this header */
} lexer_alloc_tracker_header;

/* Initial alloc tracker slot array size - 2 seems to be enough for almost all cases */
static const int initial_lexer_allocs_size = 2;
#endif

/*
 * turtle_lexer_cleanup:
 * @yyscanner:
 *
 * INTERNAL - Clean up unfreed lexer allocs if LEXER_ALLOC_TRACKING is enabled.
 */
static void turtle_lexer_cleanup(yyscan_t yyscanner)
{
#ifdef LEXER_ALLOC_TRACKING
  raptor_parser *rdf_parser;
  lexer_alloc_tracker_header *tracker;
  void **lexer_allocs;
  int i;

  if(!yyscanner)
    return;

  rdf_parser = (raptor_parser *)turtle_lexer_get_extra(yyscanner);
  if(!rdf_parser)
    return;

  tracker = (lexer_alloc_tracker_header *)rdf_parser->lexer_user_data;
  if(!tracker)
    return;
  lexer_allocs = (void**)&tracker[1];

  for(i = 0; i < tracker->lexer_allocs_size; ++i) {
    if(lexer_allocs[i])
      free(lexer_allocs[i]);
    lexer_allocs[i] = NULL;
  }
  free(rdf_parser->lexer_user_data);
  rdf_parser->lexer_user_data = NULL;
#endif
}


/*
 * turtle_lexer_alloc:
 * @size
 * @yyscanner
 *
 * INTERNAL - alloc replacement.
 * Tracks allocated cells if LEXER_ALLOC_TRACKING is enabled.
 */
void *turtle_lexer_alloc(yy_size_t size, yyscan_t yyscanner)
{
#ifdef LEXER_ALLOC_TRACKING
  raptor_parser *rdf_parser;
  lexer_alloc_tracker_header *tracker;
  void **lexer_allocs;
  int i;
  void *ptr;

  /* yyscanner not initialized -> probably initializing yyscanner itself
   * -> just malloc without tracking
   */
  if(!yyscanner)
    return malloc(size);

  rdf_parser = (raptor_parser *)turtle_lexer_get_extra(yyscanner);
  if(!rdf_parser)
    YY_FATAL_ERROR("lexer_alloc: yyscanner extra not initialized");

  /* try to allocate tracker if it does not exist */
  tracker = (lexer_alloc_tracker_header *)rdf_parser->lexer_user_data;
  if(!tracker) {
    /* allocate tracker header + array of void* slots */
    tracker = (lexer_alloc_tracker_header*)calloc(1, sizeof(lexer_alloc_tracker_header)+initial_lexer_allocs_size*sizeof(void*));
    if(!tracker)
      YY_FATAL_ERROR("lexer_alloc: cannot allocate tracker");
    tracker->lexer_allocs_size = initial_lexer_allocs_size;
    rdf_parser->lexer_user_data = (void *)tracker;
  }
  lexer_allocs = (void**)&tracker[1];

  /* allocate memory */
  ptr = malloc(size);
  
  /* find a free slot for ptr */
  for(i = 0; i < tracker->lexer_allocs_size; ++i) {
    if(!lexer_allocs[i]) {
      lexer_allocs[i] = ptr;
      break;
    }
  }

  /* no free slots -> grow tracker slot array */
  if(i>=tracker->lexer_allocs_size) {
    int j;
    void **dest;
    tracker = (lexer_alloc_tracker_header*)calloc(1, sizeof(lexer_alloc_tracker_header)+i*2*sizeof(void*));
    if(!tracker) {
      if(ptr)
        free(ptr);
      YY_FATAL_ERROR("lexer_alloc: cannot grow tracker");
    }
    tracker->lexer_allocs_size = i*2;
    
    /* copy data from old tracker */
    dest = (void**)&tracker[1];
    for(j = 0; j < i; ++j) {
      dest[j] = lexer_allocs[j];
    }
    
    /* set new item to first free slot */
    dest[j] = ptr;

    /* free old tracker and replace with new one */
    free(rdf_parser->lexer_user_data);
    rdf_parser->lexer_user_data = tracker;
  }

  return ptr;
#else
  return malloc(size);
#endif
}


/*
 * turtle_lexer_realloc:
 *
 * INTERNAL - realloc replacement
 * Tracks allocated cells if LEXER_ALLOC_TRACKING is enabled.
 */
void *turtle_lexer_realloc(void *ptr, yy_size_t size, yyscan_t yyscanner)
{
#ifdef LEXER_ALLOC_TRACKING
  raptor_parser *rdf_parser;
  lexer_alloc_tracker_header *tracker;
  void **lexer_allocs;
  int i;
  void *newptr;

  if(!yyscanner)
    YY_FATAL_ERROR("lexer_realloc: yyscanner not initialized");

  rdf_parser = (raptor_parser *)turtle_lexer_get_extra(yyscanner);
  if(!rdf_parser)
    YY_FATAL_ERROR("lexer_realloc: yyscanner extra not initialized");

  tracker = (lexer_alloc_tracker_header *)rdf_parser->lexer_user_data;
  if(!tracker)
    YY_FATAL_ERROR("lexer_realloc: no alloc tracker");
  lexer_allocs = (void**)&tracker[1];

  /* find the old slot for ptr */
  for(i = 0; i < tracker->lexer_allocs_size; ++i) {
    if(lexer_allocs[i] == ptr)
      break;
  }

  /* no old slot -> error */  
  if(i>=tracker->lexer_allocs_size)
    YY_FATAL_ERROR("lexer_realloc: cell not in tracker");

  /* realloc */
  newptr = realloc((char*)ptr, size);

  /* replace entry in tracker */
  lexer_allocs[i] = newptr;

  return newptr;
#else
  return realloc((char*)ptr, size);
#endif
}


/*
 * turtle_lexer_free:
 *
 * INTERNAL - free replacement.
 * Checks for NULL pointer to be freed unlike the default lexer free function.
 * Tracks allocated cells if LEXER_ALLOC_TRACKING is enabled.
 */
void turtle_lexer_free(void *ptr, yyscan_t yyscanner)
{
#ifdef LEXER_ALLOC_TRACKING
  raptor_parser *rdf_parser;
  lexer_alloc_tracker_header *tracker;
  void **lexer_allocs;
  int i;

  /* do not free NULL */
  if(!ptr)
    return;

  /* free ptr even if we would encounter an error */
  free(ptr);

  /* yyscanner is allocated with turtle_lexer_alloc() but it's never stored in the tracker
   * - we need yyscanner to access the tracker */
  if(!yyscanner || ptr == yyscanner)
    return;

  rdf_parser = (raptor_parser *)turtle_lexer_get_extra(yyscanner);
  if(!rdf_parser)
    return;

  tracker = (lexer_alloc_tracker_header *)rdf_parser->lexer_user_data;
  if(!tracker)
    return;
  lexer_allocs = (void**)&tracker[1];

  /* find the slot for ptr */
  for(i = 0; i < tracker->lexer_allocs_size; ++i) {
    if(lexer_allocs[i] == ptr)
      break;
  }

  /* no slot -> error */  
  if(i>=tracker->lexer_allocs_size)
    YY_FATAL_ERROR("lexer_free: cell not in tracker");

  /* remove entry from tracker */
  lexer_allocs[i] = NULL;
#else
  if(ptr)
    free(ptr);
#endif
}


#ifdef RAPTOR_DEBUG

const char *
turtle_token_print(raptor_world* world, int token, YYSTYPE *lval)
{
  static char buffer[2048];

  if(!token)
    return "<<EOF>>";
  
  switch(token) {
    case PREFIX:
      return "PREFIX";

    case BASE:
      return "BASE";

    case A:
      return "A";

    case DOT:
      return "DOT";

    case COMMA:
      return "COMMA";

    case SEMICOLON:
      return "SEMICOLON";

    case LEFT_SQUARE:
      return "LEFT_SQUARE";

    case RIGHT_SQUARE:
      return "RIGHT_SQUARE";

    case AT:
      return "AT";

    case HAT:
      return "HAT";

    case STRING_LITERAL:
      sprintf(buffer, "STRING_LITERAL(%s)", lval->string);
      return buffer;

    case URI_LITERAL:
      sprintf(buffer, "URI_LITERAL(%s)", 
              (lval->uri ? (char*)raptor_uri_as_string(lval->uri) : ""));
      return buffer;

    case BLANK_LITERAL:
      sprintf(buffer, "BLANK_LITERAL(%s)", lval->string);
      return buffer;

    case QNAME_LITERAL:
      sprintf(buffer, "QNAME_LITERAL(%s)", 
              (lval->uri ? (char*)raptor_uri_as_string(lval->uri) : ""));
      return buffer;

    case INTEGER_LITERAL:
      sprintf(buffer, "INTEGER_LITERAL(%d)", lval->integer);
      return buffer;

    case FLOATING_LITERAL:
      sprintf(buffer, "FLOATING_LITERAL(%s)", lval->string);
      return buffer;

    case IDENTIFIER:
      sprintf(buffer, "IDENTIFIER(%s)", 
              (lval->string ? (char*)lval->string : ""));
      return buffer;

    case DECIMAL_LITERAL:
      sprintf(buffer, "DECIMAL_LITERAL(%s)", lval->string);
      return buffer;

    case ERROR_TOKEN:
      return "ERROR";

   default:
     RAPTOR_DEBUG2("UNKNOWN token %d - add a new case\n", token);
     return "(UNKNOWN)";
  }
}
#endif



void
turtle_token_free(raptor_world* world, int token, YYSTYPE *lval)
{
  if(!token)
    return;

  switch(token) {
    case STRING_LITERAL:
    case BLANK_LITERAL:
    case IDENTIFIER:
      if(lval->string)
        RAPTOR_FREE(char*, lval->string);
      break;

    case URI_LITERAL:
    case QNAME_LITERAL:
      if(lval->uri)
        raptor_free_uri(lval->uri);
      break;
    default:
      break;
  }
}


#ifdef STANDALONE

int
main(int argc, char *argv[]) 
{
  raptor_parser rdf_parser;
  raptor_turtle_parser turtle_parser;
  yyscan_t scanner;
  int token = EOF;
  FILE *fh;
  YYSTYPE lval;
  const unsigned char *uri_string;
  const char *filename = NULL;
  raptor_world* world;
  
  world = raptor_new_world();
  
  if(argc > 1) {
    filename = argv[1];
    fh = fopen(filename, "r");
    if(!fh) {
      fprintf(stderr, "%s: Cannot open file %s - %s\n", argv[0], filename,
              strerror(errno));
      exit(1);
    }
  } else {
    filename="<stdin>";
    fh = (FILE*)stdin;
  }

  memset(&rdf_parser, 0, sizeof(rdf_parser));
  memset(&turtle_parser, 0, sizeof(turtle_parser));

  rdf_parser.world = world;

  /* discard namespace errors - caused by not interpreting @prefix 
   * and hence causing failed qname construction
   */
  raptor_namespaces_init(rdf_parser.world, &turtle_parser.namespaces, 0);

  turtle_lexer_lex_init(&turtle_parser.scanner);
  scanner = turtle_parser.scanner;
  turtle_lexer_set_in(fh, scanner);
  turtle_lexer_set_extra(&rdf_parser, scanner);

  /* Initialise enough of the parser and locator to get error messages */
  rdf_parser.context = &turtle_parser;
  turtle_parser.lineno = 1;
  rdf_parser.locator.file = filename;
  rdf_parser.locator.column = -1;

  uri_string = raptor_uri_filename_to_uri_string(filename);
  rdf_parser.base_uri = raptor_new_uri(world, uri_string);
  RAPTOR_FREE(char*, uri_string);
  
  while(1) {
    memset(&lval, 0, sizeof(YYSTYPE));
    if(turtle_lexer_get_text(scanner) != NULL)
      printf("yyinput '%s'\n", turtle_lexer_get_text(scanner));
    token = turtle_lexer_lex(&lval,scanner);
#ifdef RAPTOR_DEBUG
    printf("token %s\n", turtle_token_print(world, token, &lval));
#else
    printf("token %d\n", token);
#endif
    turtle_token_free(world, token, &lval);
    if(!token || token == EOF || token == ERROR_TOKEN)
      break;
  }

  turtle_lexer_lex_destroy(scanner);

  raptor_namespaces_clear(&turtle_parser.namespaces);
  
  raptor_free_uri(rdf_parser.base_uri);

  raptor_free_world(world);


  if(token == ERROR_TOKEN)
    return 1;
 
  return 0;
}
#endif

