/src/igraph/build/src/io/parsers/dl-lexer.c

Source
#line 2 "/src/igraph/build/src/io/parsers/dl-lexer.c"

#line 4 "/src/igraph/build/src/io/parsers/dl-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 6
#define YY_FLEX_SUBMINOR_VERSION 4
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif

#ifdef yy_create_buffer
#define igraph_dl_yy_create_buffer_ALREADY_DEFINED
#else
#define yy_create_buffer igraph_dl_yy_create_buffer
#endif

#ifdef yy_delete_buffer
#define igraph_dl_yy_delete_buffer_ALREADY_DEFINED
#else
#define yy_delete_buffer igraph_dl_yy_delete_buffer
#endif

#ifdef yy_scan_buffer
#define igraph_dl_yy_scan_buffer_ALREADY_DEFINED
#else
#define yy_scan_buffer igraph_dl_yy_scan_buffer
#endif

#ifdef yy_scan_string
#define igraph_dl_yy_scan_string_ALREADY_DEFINED
#else
#define yy_scan_string igraph_dl_yy_scan_string
#endif

#ifdef yy_scan_bytes
#define igraph_dl_yy_scan_bytes_ALREADY_DEFINED
#else
#define yy_scan_bytes igraph_dl_yy_scan_bytes
#endif

#ifdef yy_init_buffer
#define igraph_dl_yy_init_buffer_ALREADY_DEFINED
#else
#define yy_init_buffer igraph_dl_yy_init_buffer
#endif

#ifdef yy_flush_buffer
#define igraph_dl_yy_flush_buffer_ALREADY_DEFINED
#else
#define yy_flush_buffer igraph_dl_yy_flush_buffer
#endif

#ifdef yy_load_buffer_state
#define igraph_dl_yy_load_buffer_state_ALREADY_DEFINED
#else
#define yy_load_buffer_state igraph_dl_yy_load_buffer_state
#endif

#ifdef yy_switch_to_buffer
#define igraph_dl_yy_switch_to_buffer_ALREADY_DEFINED
#else
#define yy_switch_to_buffer igraph_dl_yy_switch_to_buffer
#endif

#ifdef yypush_buffer_state
#define igraph_dl_yypush_buffer_state_ALREADY_DEFINED
#else
#define yypush_buffer_state igraph_dl_yypush_buffer_state
#endif

#ifdef yypop_buffer_state
#define igraph_dl_yypop_buffer_state_ALREADY_DEFINED
#else
#define yypop_buffer_state igraph_dl_yypop_buffer_state
#endif

#ifdef yyensure_buffer_stack
#define igraph_dl_yyensure_buffer_stack_ALREADY_DEFINED
#else
#define yyensure_buffer_stack igraph_dl_yyensure_buffer_stack
#endif

#ifdef yylex
#define igraph_dl_yylex_ALREADY_DEFINED
#else
#define yylex igraph_dl_yylex
#endif

#ifdef yyrestart
#define igraph_dl_yyrestart_ALREADY_DEFINED
#else
#define yyrestart igraph_dl_yyrestart
#endif

#ifdef yylex_init
#define igraph_dl_yylex_init_ALREADY_DEFINED
#else
#define yylex_init igraph_dl_yylex_init
#endif

#ifdef yylex_init_extra
#define igraph_dl_yylex_init_extra_ALREADY_DEFINED
#else
#define yylex_init_extra igraph_dl_yylex_init_extra
#endif

#ifdef yylex_destroy
#define igraph_dl_yylex_destroy_ALREADY_DEFINED
#else
#define yylex_destroy igraph_dl_yylex_destroy
#endif

#ifdef yyget_debug
#define igraph_dl_yyget_debug_ALREADY_DEFINED
#else
#define yyget_debug igraph_dl_yyget_debug
#endif

#ifdef yyset_debug
#define igraph_dl_yyset_debug_ALREADY_DEFINED
#else
#define yyset_debug igraph_dl_yyset_debug
#endif

#ifdef yyget_extra
#define igraph_dl_yyget_extra_ALREADY_DEFINED
#else
#define yyget_extra igraph_dl_yyget_extra
#endif

#ifdef yyset_extra
#define igraph_dl_yyset_extra_ALREADY_DEFINED
#else
#define yyset_extra igraph_dl_yyset_extra
#endif

#ifdef yyget_in
#define igraph_dl_yyget_in_ALREADY_DEFINED
#else
#define yyget_in igraph_dl_yyget_in
#endif

#ifdef yyset_in
#define igraph_dl_yyset_in_ALREADY_DEFINED
#else
#define yyset_in igraph_dl_yyset_in
#endif

#ifdef yyget_out
#define igraph_dl_yyget_out_ALREADY_DEFINED
#else
#define yyget_out igraph_dl_yyget_out
#endif

#ifdef yyset_out
#define igraph_dl_yyset_out_ALREADY_DEFINED
#else
#define yyset_out igraph_dl_yyset_out
#endif

#ifdef yyget_leng
#define igraph_dl_yyget_leng_ALREADY_DEFINED
#else
#define yyget_leng igraph_dl_yyget_leng
#endif

#ifdef yyget_text
#define igraph_dl_yyget_text_ALREADY_DEFINED
#else
#define yyget_text igraph_dl_yyget_text
#endif

#ifdef yyget_lineno
#define igraph_dl_yyget_lineno_ALREADY_DEFINED
#else
#define yyget_lineno igraph_dl_yyget_lineno
#endif

#ifdef yyset_lineno
#define igraph_dl_yyset_lineno_ALREADY_DEFINED
#else
#define yyset_lineno igraph_dl_yyset_lineno
#endif

#ifdef yyget_column
#define igraph_dl_yyget_column_ALREADY_DEFINED
#else
#define yyget_column igraph_dl_yyget_column
#endif

#ifdef yyset_column
#define igraph_dl_yyset_column_ALREADY_DEFINED
#else
#define yyset_column igraph_dl_yyset_column
#endif

#ifdef yywrap
#define igraph_dl_yywrap_ALREADY_DEFINED
#else
#define yywrap igraph_dl_yywrap
#endif

#ifdef yyget_lval
#define igraph_dl_yyget_lval_ALREADY_DEFINED
#else
#define yyget_lval igraph_dl_yyget_lval
#endif

#ifdef yyset_lval
#define igraph_dl_yyset_lval_ALREADY_DEFINED
#else
#define yyset_lval igraph_dl_yyset_lval
#endif

#ifdef yyget_lloc
#define igraph_dl_yyget_lloc_ALREADY_DEFINED
#else
#define yyget_lloc igraph_dl_yyget_lloc
#endif

#ifdef yyset_lloc
#define igraph_dl_yyset_lloc_ALREADY_DEFINED
#else
#define yyset_lloc igraph_dl_yyset_lloc
#endif

#ifdef yyalloc
#define igraph_dl_yyalloc_ALREADY_DEFINED
#else
#define yyalloc igraph_dl_yyalloc
#endif

#ifdef yyrealloc
#define igraph_dl_yyrealloc_ALREADY_DEFINED
#else
#define yyrealloc igraph_dl_yyrealloc
#endif

#ifdef yyfree
#define igraph_dl_yyfree_ALREADY_DEFINED
#else
#define yyfree igraph_dl_yyfree
#endif

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

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

/* end standard C headers. */

/* flex integer type definitions */

#ifndef FLEXINT_H
#define FLEXINT_H

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

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

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

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

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

#ifndef SIZE_MAX
#define SIZE_MAX               (~(size_t)0)
#endif

#endif /* ! C99 */

#endif /* ! FLEXINT_H */

/* begin standard C++ headers. */

/* TODO: this is always defined, so inline it */
#define yyconst const

#if defined(__GNUC__) && __GNUC__ >= 3
#define yynoreturn __attribute__((__noreturn__))
#else
#define yynoreturn
#endif

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

/* Promotes a possibly negative, possibly signed char to an
 *   integer in range [0..255] for use as an array index.
 */
#define YY_SC_TO_UI(c) ((YY_CHAR) (c))

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

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

/* Enter a start condition.  This macro really ought to take a parameter,
 * but we do it the disgusting crufty way forced on us by the ()-less
 * definition of BEGIN.
 */
#define BEGIN yyg->yy_start = 1 + 2 *
/* Translate the current start state into a value that can be later handed
 * to BEGIN to return to the state.  The YYSTATE alias is for lex
 * compatibility.
 */
#define YY_START ((yyg->yy_start - 1) / 2)
#define YYSTATE YY_START
/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE yyrestart( yyin , yyscanner )
#define YY_END_OF_BUFFER_CHAR 0

/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k.
 * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
 * Ditto for the __ia64__ case accordingly.
 */
#define YY_BUF_SIZE 32768
#else
#define YY_BUF_SIZE 16384
#endif /* __ia64__ */
#endif

/* The state buf must be large enough to hold one state per character in the main buffer.
 */
#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))

#ifndef YY_TYPEDEF_YY_BUFFER_STATE
#define YY_TYPEDEF_YY_BUFFER_STATE
typedef struct yy_buffer_state *YY_BUFFER_STATE;
#endif

#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef size_t yy_size_t;
#endif

#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2
    
    /* Note: We specifically omit the test for yy_rule_can_match_eol because it requires
     *       access to the local variable yy_act. Since yyless() is a macro, it would break
     *       existing scanners that call yyless() from OUTSIDE yylex.
     *       One obvious solution it to make yy_act a global. I tried that, and saw
     *       a 5% performance hit in a non-yylineno scanner, because yy_act is
     *       normally declared as a register variable-- so it is not worth it.
     */
    #define  YY_LESS_LINENO(n) \
            do { \
                int yyl;\
                for ( yyl = n; yyl < yyleng; ++yyl )\
                    if ( yytext[yyl] == '\n' )\
                        --yylineno;\
            }while(0)
    #define YY_LINENO_REWIND_TO(dst) \
            do {\
                const char *p;\
                for ( p = yy_cp-1; p >= (dst); --p)\
                    if ( *p == '\n' )\
                        --yylineno;\
            }while(0)
    
/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
  do \
    { \
    /* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
    *yy_cp = yyg->yy_hold_char; \
    YY_RESTORE_YY_MORE_OFFSET \
    yyg->yy_c_buf_p = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
    YY_DO_BEFORE_ACTION; /* set up yytext again */ \
    } \
  while ( 0 )
#define unput(c) yyunput( c, yyg->yytext_ptr , yyscanner )

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

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

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

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

  /* Whether we "own" the buffer - i.e., we know we created it,
   * and can realloc() it to grow it, and should free() it to
   * delete it.
   */
  int yy_is_our_buffer;

  /* Whether this is an "interactive" input source; if so, and
   * if we're using stdio for input, then we want to use getc()
   * instead of fread(), to make sure we stop fetching input after
   * each newline.
   */
  int yy_is_interactive;

  /* Whether we're considered to be at the beginning of a line.
   * If so, '^' rules will be active on the next match, otherwise
   * not.
   */
  int yy_at_bol;

    int yy_bs_lineno; /**< The line count. */
    int yy_bs_column; /**< The column count. */

  /* Whether to try to fill the input buffer when we reach the
   * end of it.
   */
  int yy_fill_buffer;

  int yy_buffer_status;

#define YY_BUFFER_NEW 0
#define YY_BUFFER_NORMAL 1
  /* When an EOF's been seen but there's still some text to process
   * then we mark the buffer as YY_EOF_PENDING, to indicate that we
   * shouldn't try reading from the input source any more.  We might
   * still have a bunch of tokens to match, though, because of
   * possible backing-up.
   *
   * When we actually see the EOF, we change the status to "new"
   * (via yyrestart()), so that the user can continue scanning by
   * just pointing yyin at a new input file.
   */
#define YY_BUFFER_EOF_PENDING 2

  };
#endif /* !YY_STRUCT_YY_BUFFER_STATE */

/* We provide macros for accessing buffer states in case in the
 * future we want to put the buffer states in a more general
 * "scanner state".
 *
 * Returns the top of the stack, or NULL.
 */
#define YY_CURRENT_BUFFER ( yyg->yy_buffer_stack \
                          ? yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] \
                          : NULL)
/* Same as previous macro, but useful when we know that the buffer stack is not
 * NULL or when we need an lvalue. For internal use only.
 */
#define YY_CURRENT_BUFFER_LVALUE yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]

void yyrestart ( FILE *input_file , yyscan_t yyscanner );
void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner );
YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size , yyscan_t yyscanner );
void yy_delete_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner );
void yy_flush_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner );
void yypush_buffer_state ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner );
void yypop_buffer_state ( yyscan_t yyscanner );

static void yyensure_buffer_stack ( yyscan_t yyscanner );
static void yy_load_buffer_state ( yyscan_t yyscanner );
static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file , yyscan_t yyscanner );
#define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER , yyscanner)

YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size , yyscan_t yyscanner );
YY_BUFFER_STATE yy_scan_string ( const char *yy_str , yyscan_t yyscanner );
YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len , yyscan_t yyscanner );

void *yyalloc ( yy_size_t , yyscan_t yyscanner );
void *yyrealloc ( void *, yy_size_t , yyscan_t yyscanner );
void yyfree ( void * , yyscan_t yyscanner );

#define yy_new_buffer yy_create_buffer
#define yy_set_interactive(is_interactive) \
  { \
  if ( ! YY_CURRENT_BUFFER ){ \
        yyensure_buffer_stack (yyscanner); \
    YY_CURRENT_BUFFER_LVALUE =    \
            yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); \
  } \
  YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
  }
#define yy_set_bol(at_bol) \
  { \
  if ( ! YY_CURRENT_BUFFER ){\
        yyensure_buffer_stack (yyscanner); \
    YY_CURRENT_BUFFER_LVALUE =    \
            yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); \
  } \
  YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
  }
#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

#define igraph_dl_yywrap(yyscanner) (/*CONSTCOND*/1)
#define YY_SKIP_YYWRAP
typedef flex_uint8_t YY_CHAR;

typedef int yy_state_type;

#define yytext_ptr yytext_r

static yy_state_type yy_get_previous_state ( yyscan_t yyscanner );
static yy_state_type yy_try_NUL_trans ( yy_state_type current_state  , yyscan_t yyscanner);
static int yy_get_next_buffer ( yyscan_t yyscanner );
static void yynoreturn yy_fatal_error ( const char* msg , yyscan_t yyscanner );

/* Done after the current pattern has been matched and before the
 * corresponding action - sets up yytext.
 */
#define YY_DO_BEFORE_ACTION \
  yyg->yytext_ptr = yy_bp; \
  yyleng = (int) (yy_cp - yy_bp); \
  yyg->yy_hold_char = *yy_cp; \
  *yy_cp = '\0'; \
  yyg->yy_c_buf_p = yy_cp;
#define YY_NUM_RULES 24
#define YY_END_OF_BUFFER 25
/* This struct is not used in this scanner,
   but its presence is necessary. */
struct yy_trans_info
  {
  flex_int32_t yy_verify;
  flex_int32_t yy_nxt;
  };
static const flex_int16_t yy_accept[129] =
    {   0,
        0,    0,    0,    0,    0,    0,   18,   18,   21,   21,
       25,   23,   22,    1,    1,    4,   23,   23,   23,   23,
       12,   11,   12,   12,   14,   15,   13,   17,   18,   17,
       16,   20,   21,   19,   22,    1,    4,    0,    0,    0,
        0,    0,    3,   12,   12,   12,   12,   14,   13,   17,
       18,   16,   17,   17,   20,   21,   19,    0,    2,    0,
        0,    3,   12,   12,   16,   17,   16,    0,    0,    0,
       12,   12,    5,    0,    0,    5,   12,    0,    0,   12,
        0,    0,    0,    6,   12,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,

        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    7,    9,    0,
       10,    7,    7,    9,    8,   10,    8,    0
    } ;

static const YY_CHAR yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        2,    2,    4,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    5,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    6,    7,    8,    9,    1,   10,   11,   10,
       10,   10,   10,   10,   10,   10,   10,   12,    1,    1,
       13,    1,    1,    1,   14,   15,    1,   16,   17,   18,
       19,    1,   20,    1,    1,   21,   22,   23,   24,    1,
        1,   25,   26,   27,   28,    1,    1,   29,    1,    1,
        1,    1,    1,    1,    1,    1,   30,   31,    1,   32,

       33,   34,   35,    1,   36,    1,    1,   37,   38,   39,
       40,    1,    1,   41,   42,   43,   44,    1,    1,   45,
        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,    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,    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,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1
    } ;

static const YY_CHAR yy_meta[47] =
    {   0,
        1,    2,    3,    3,    2,    1,    3,    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
    } ;

static const flex_int16_t yy_base[138] =
    {   0,
        0,   38,   76,  121,  166,  211,  256,  301,  346,  391,
      101,  493,    4,   72,   64,    2,    1,    4,    0,   22,
       15,  493,   55,   60,    0,  493,   24,    0,   31,   35,
       77,    0,   45,   41,   53,  493,   53,   39,   66,   48,
       69,   91,   93,   97,  101,  107,  112,    0,  113,    0,
      114,  121,  110,  138,    0,  131,  129,   77,  150,  107,
      118,  154,  158,  173,  169,  151,  154,   41,  127,  145,
      179,  187,  493,  156,  159,  191,  193,  192,  198,  202,
      215,  436,  221,  493,  232,    0,  193,  183,  205,  208,
      212,  211,  220,  224,  223,  232,  251,  253,  250,  250,

      252,  258,  255,  262,  257,  262,  253,  253,  255,  265,
      256,  260,  273,  294,   14,  293,    8,  239,  312,  286,
      316,  317,  318,  322,  323,  328,  330,  493,  475,  478,
      481,  484,  487,  490,    7,    6,    0
    } ;

static const flex_int16_t yy_def[138] =
    {   0,
      129,  129,  130,  130,  131,  131,  132,  132,  133,  133,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      134,  128,  134,  134,  135,  128,  135,  136,  128,  136,
      136,  137,  128,  137,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  134,  128,  134,  134,  135,  128,  136,
      128,  136,  136,  136,  137,  128,  137,  128,  128,  128,
      128,  128,  134,  134,  136,  136,  136,  128,  128,  128,
      134,  134,  128,  128,  128,  134,  134,  128,  128,  134,
      128,  128,  128,  128,  128,   82,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,

      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,    0,  128,  128,
      128,  128,  128,  128,  128,  128,  128
    } ;

static const flex_int16_t yy_nxt[540] =
    {   0,
       55,   13,   14,   15,   13,   35,   50,   48,   35,   16,
       16,   37,   37,   41,   38,   17,   45,   18,  121,   45,
       19,   39,   20,   42,  119,   49,   42,   40,   49,   41,
       38,   17,   51,   18,   43,   51,   19,   39,   20,   13,
       14,   15,   13,   40,   52,   52,   56,   16,   16,   56,
       57,   57,   73,   17,   35,   18,   45,   35,   19,   45,
       20,   45,   37,   37,   45,   58,   36,   59,   46,   17,
       59,   18,   60,   47,   19,   36,   20,   12,   14,   15,
       22,   58,   22,   61,   46,   53,   52,   52,   60,   47,
       68,   23,   42,   54,   62,   42,   24,   62,   45,   61,

      128,   45,   45,   43,  128,   45,   68,   23,   45,   54,
      128,   45,   24,   45,   49,   51,   45,   49,   51,   65,
       65,   12,   12,   14,   15,   22,   64,   22,   69,   53,
       52,   52,   56,   63,   70,   56,   23,   54,   57,   57,
       74,   24,   64,   66,   69,   66,  128,   67,   67,   63,
       70,   59,   23,   54,   59,   62,   74,   24,   62,   45,
       67,   67,   45,   67,   67,   75,   12,   26,   14,   15,
       26,   71,   12,  128,   45,   27,   27,   45,   65,   65,
       45,   75,   78,   45,   79,   54,  128,   71,   45,   72,
       76,   45,   45,   81,   45,   45,   81,   45,   78,   83,

       79,   54,   83,   85,   82,   72,   85,   77,   91,   84,
       92,   12,   26,   14,   15,   26,   81,   12,   80,   81,
       27,   27,   83,   77,   91,   83,   92,   82,   93,   94,
       95,   96,  128,   85,   80,   97,   85,   90,   98,   99,
      122,  128,  128,  122,   93,   94,   95,   96,   90,  128,
      123,   97,  100,   90,   98,   99,   12,   29,   14,   15,
       29,   30,   12,   30,   90,   31,   31,  101,  100,  102,
      103,  104,  105,  106,  107,  108,  109,  110,  111,  112,
      113,  114,  115,  101,  116,  102,  103,  104,  105,  106,
      107,  108,  109,  110,  111,  112,  113,  114,  115,  117,

      116,   12,   29,   14,   15,   29,   30,   12,   30,  118,
       31,   31,  120,  124,  125,  117,  124,  126,  122,  122,
      126,  122,  122,  124,  127,  118,  124,  127,  120,  126,
      125,  127,  126,  128,  127,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,   12,   33,   14,   15,
       33,  128,   12,  128,  128,   34,   34,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,   12,   33,   14,   15,   33,  128,   12,  128,  128,

       34,   34,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,   12,   86,  128,  128,
       86,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,   87,   88,  128,  128,  128,  128,   89,  128,
      128,  128,  128,  128,  128,  128,  128,  128,   87,   88,
      128,  128,  128,  128,   89,   12,   12,   12,   21,   21,
       21,   25,   25,   25,   28,   28,   28,   32,   32,   32,
       44,   44,   11,  128,  128,  128,  128,  128,  128,  128,

      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128
    } ;

static const flex_int16_t yy_chk[540] =
    {   0,
      137,    1,    1,    1,    1,   13,  136,  135,   13,    1,
        1,   16,   16,   19,   17,    1,   21,    1,  117,   21,
        1,   17,    1,   20,  115,   27,   20,   18,   27,   19,
       17,    1,   29,    1,   20,   29,    1,   17,    1,    2,
        2,    2,    2,   18,   30,   30,   33,    2,    2,   33,
       34,   34,   68,    2,   35,    2,   23,   35,    2,   23,
        2,   24,   37,   37,   24,   38,   15,   39,   23,    2,
       39,    2,   40,   24,    2,   14,    2,    3,    3,    3,
        3,   38,    3,   41,   23,   31,   31,   31,   40,   24,
       58,    3,   42,   31,   43,   42,    3,   43,   44,   41,

       11,   44,   45,   42,    0,   45,   58,    3,   46,   31,
        0,   46,    3,   47,   49,   51,   47,   49,   51,   53,
       53,    3,    4,    4,    4,    4,   47,    4,   60,   52,
       52,   52,   56,   46,   61,   56,    4,   52,   57,   57,
       69,    4,   47,   54,   60,   54,    0,   54,   54,   46,
       61,   59,    4,   52,   59,   62,   69,    4,   62,   63,
       66,   66,   63,   67,   67,   70,    4,    5,    5,    5,
        5,   63,    5,    0,   64,    5,    5,   64,   65,   65,
       71,   70,   74,   71,   75,   65,    0,   63,   72,   64,
       71,   72,   76,   78,   77,   76,   78,   77,   74,   79,

       75,   65,   79,   80,   78,   64,   80,   72,   87,   79,
       88,    5,    6,    6,    6,    6,   81,    6,   77,   81,
        6,    6,   83,   72,   87,   83,   88,   81,   89,   90,
       91,   92,    0,   85,   77,   93,   85,   83,   94,   95,
      118,    0,    0,  118,   89,   90,   91,   92,   85,    0,
      118,   93,   96,   83,   94,   95,    6,    7,    7,    7,
        7,    7,    7,    7,   85,    7,    7,   97,   96,   98,
       99,  100,  101,  102,  103,  104,  105,  106,  107,  108,
      109,  110,  111,   97,  112,   98,   99,  100,  101,  102,
      103,  104,  105,  106,  107,  108,  109,  110,  111,  113,

      112,    7,    8,    8,    8,    8,    8,    8,    8,  114,
        8,    8,  116,  119,  120,  113,  119,  121,  122,  123,
      121,  122,  123,  124,  125,  114,  124,  125,  116,  126,
      120,  127,  126,    0,  127,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    8,    9,    9,    9,
        9,    0,    9,    0,    0,    9,    9,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    9,   10,   10,   10,   10,    0,   10,    0,    0,

       10,   10,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,    0,    0,    0,    0,   10,   82,    0,    0,
       82,    0,    0,    0,    0,    0,    0,    0,    0,    0,
        0,    0,   82,   82,    0,    0,    0,    0,   82,    0,
        0,    0,    0,    0,    0,    0,    0,    0,   82,   82,
        0,    0,    0,    0,   82,  129,  129,  129,  130,  130,
      130,  131,  131,  131,  132,  132,  132,  133,  133,  133,
      134,  134,  128,  128,  128,  128,  128,  128,  128,  128,

      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
      128,  128,  128,  128,  128,  128,  128,  128,  128
    } ;

/* Table of booleans, true if rule could match eol. */
static const flex_int32_t yy_rule_can_match_eol[25] =
    {   0,
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
    0, 0, 0, 0, 0,     };

/* 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 "/src/igraph/src/io/dl-lexer.l"
/*
   igraph library.
   Copyright (C) 2007-2012  Gabor Csardi <csardi.gabor@gmail.com>
   334 Harvard st, Cambridge, MA, 02138 USA

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301 USA

*/
#line 24 "/src/igraph/src/io/dl-lexer.l"

/*
   igraph library.
   Copyright (C) 2007-2012  Gabor Csardi <csardi.gabor@gmail.com>
   334 Harvard st, Cambridge, MA, 02138 USA

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301 USA

*/

#include "io/dl-header.h"
#include "io/parsers/dl-parser.h"

#include <stdlib.h>

#define YY_EXTRA_TYPE igraph_i_dl_parsedata_t*
#define YY_USER_ACTION yylloc->first_line = yylineno;
#define YY_FATAL_ERROR(msg) IGRAPH_FATAL("Error in DL parser: " # msg)
#ifdef USING_R
#define fprintf(file, msg, ...) (1)
#ifdef stdout
#  undef stdout
#endif
#define stdout 0
#endif
#line 900 "/src/igraph/build/src/io/parsers/dl-lexer.c"
#define YY_NO_INPUT 1

#line 903 "/src/igraph/build/src/io/parsers/dl-lexer.c"

#define INITIAL 0
#define LABELM 1
#define FULLMATRIX 2
#define EDGELIST 3
#define NODELIST 4

#ifndef YY_NO_UNISTD_H
/* Special case for "unistd.h", since it is non-ANSI. We include it way
 * down here because we want the user's section 1 to have been scanned first.
 * The user has a chance to override it with an option.
 */
#include <unistd.h>
#endif

#ifndef YY_EXTRA_TYPE
#define YY_EXTRA_TYPE void *
#endif

/* Holds the entire state of the reentrant scanner. */
struct yyguts_t
    {

    /* User-defined. Not touched by flex. */
    YY_EXTRA_TYPE yyextra_r;

    /* The rest are the same as the globals declared in the non-reentrant scanner. */
    FILE *yyin_r, *yyout_r;
    size_t yy_buffer_stack_top; /**< index of top of stack. */
    size_t yy_buffer_stack_max; /**< capacity of stack. */
    YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */
    char yy_hold_char;
    int yy_n_chars;
    int yyleng_r;
    char *yy_c_buf_p;
    int yy_init;
    int yy_start;
    int yy_did_buffer_switch_on_eof;
    int yy_start_stack_ptr;
    int yy_start_stack_depth;
    int *yy_start_stack;
    yy_state_type yy_last_accepting_state;
    char* yy_last_accepting_cpos;

    int yylineno_r;
    int yy_flex_debug_r;

    char *yytext_r;
    int yy_more_flag;
    int yy_more_len;

    YYSTYPE * yylval_r;

    YYLTYPE * yylloc_r;

    }; /* end struct yyguts_t */

static int yy_init_globals ( yyscan_t yyscanner );

    /* This must go here because YYSTYPE and YYLTYPE are included
     * from bison output in section 1.*/
    #    define yylval yyg->yylval_r
    
    #    define yylloc yyg->yylloc_r
    
int yylex_init (yyscan_t* scanner);

int yylex_init_extra ( YY_EXTRA_TYPE user_defined, yyscan_t* scanner);

/* Accessor methods to globals.
   These are made visible to non-reentrant scanners for convenience. */

int yylex_destroy ( yyscan_t yyscanner );

int yyget_debug ( yyscan_t yyscanner );

void yyset_debug ( int debug_flag , yyscan_t yyscanner );

YY_EXTRA_TYPE yyget_extra ( yyscan_t yyscanner );

void yyset_extra ( YY_EXTRA_TYPE user_defined , yyscan_t yyscanner );

FILE *yyget_in ( yyscan_t yyscanner );

void yyset_in  ( FILE * _in_str , yyscan_t yyscanner );

FILE *yyget_out ( yyscan_t yyscanner );

void yyset_out  ( FILE * _out_str , yyscan_t yyscanner );

      int yyget_leng ( yyscan_t yyscanner );

char *yyget_text ( yyscan_t yyscanner );

int yyget_lineno ( yyscan_t yyscanner );

void yyset_lineno ( int _line_number , yyscan_t yyscanner );

int yyget_column  ( yyscan_t yyscanner );

void yyset_column ( int _column_no , yyscan_t yyscanner );

YYSTYPE * yyget_lval ( yyscan_t yyscanner );

void yyset_lval ( YYSTYPE * yylval_param , yyscan_t yyscanner );

       YYLTYPE *yyget_lloc ( yyscan_t yyscanner );
    
        void yyset_lloc ( YYLTYPE * yylloc_param , yyscan_t yyscanner );
    
/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap ( yyscan_t yyscanner );
#else
extern int yywrap ( yyscan_t yyscanner );
#endif
#endif

#ifndef YY_NO_UNPUT
    
#endif

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

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

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

#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k */
#define YY_READ_BUF_SIZE 16384
#else
#define YY_READ_BUF_SIZE 8192
#endif /* __ia64__ */
#endif

/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite().
 */
#define ECHO do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0)
#endif

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

#endif

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

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

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

/* end tables serialization structures and prototypes */

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

extern int yylex \
               (YYSTYPE * yylval_param, YYLTYPE * yylloc_param , yyscan_t yyscanner);

#define YY_DECL int yylex \
               (YYSTYPE * yylval_param, YYLTYPE * yylloc_param , yyscan_t yyscanner)
#endif /* !YY_DECL */

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

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

#define YY_RULE_SETUP \
  YY_USER_ACTION

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

    yylval = yylval_param;

    yylloc = yylloc_param;

  if ( !yyg->yy_init )
    {
    yyg->yy_init = 1;

#ifdef YY_USER_INIT
    YY_USER_INIT;
#endif

    if ( ! yyg->yy_start )
      yyg->yy_start = 1; /* first start state */

    if ( ! yyin )
      yyin = stdin;

    if ( ! yyout )
      yyout = stdout;

    if ( ! YY_CURRENT_BUFFER ) {
      yyensure_buffer_stack (yyscanner);
      YY_CURRENT_BUFFER_LVALUE =
        yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner);
    }

    yy_load_buffer_state( yyscanner );
    }

  {
#line 80 "/src/igraph/src/io/dl-lexer.l"


#line 1192 "/src/igraph/build/src/io/parsers/dl-lexer.c"

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

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

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

    yy_current_state = yyg->yy_start;
yy_match:
    do
      {
      YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ;
      if ( yy_accept[yy_current_state] )
        {
        yyg->yy_last_accepting_state = yy_current_state;
        yyg->yy_last_accepting_cpos = yy_cp;
        }
      while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
        {
        yy_current_state = (int) yy_def[yy_current_state];
        if ( yy_current_state >= 129 )
          yy_c = yy_meta[yy_c];
        }
      yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
      ++yy_cp;
      }
    while ( yy_base[yy_current_state] != 493 );

yy_find_action:
    yy_act = yy_accept[yy_current_state];
    if ( yy_act == 0 )
      { /* have to back up */
      yy_cp = yyg->yy_last_accepting_cpos;
      yy_current_state = yyg->yy_last_accepting_state;
      yy_act = yy_accept[yy_current_state];
      }

    YY_DO_BEFORE_ACTION;

    if ( yy_act != YY_END_OF_BUFFER && yy_rule_can_match_eol[yy_act] )
      {
      int yyl;
      for ( yyl = 0; yyl < yyleng; ++yyl )
        if ( yytext[yyl] == '\n' )
          
    do{ yylineno++;
        yycolumn=0;
    }while(0)
;
      }

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 82 "/src/igraph/src/io/dl-lexer.l"
{ return NEWLINE; }
  YY_BREAK
case 2:
YY_RULE_SETUP
#line 84 "/src/igraph/src/io/dl-lexer.l"
{ return DL; }
  YY_BREAK
case 3:
YY_RULE_SETUP
#line 85 "/src/igraph/src/io/dl-lexer.l"
{ return NEQ; }
  YY_BREAK
case 4:
YY_RULE_SETUP
#line 86 "/src/igraph/src/io/dl-lexer.l"
{ return NUM; }
  YY_BREAK
case 5:
YY_RULE_SETUP
#line 88 "/src/igraph/src/io/dl-lexer.l"
{
  switch (yyextra->mode) {
  case 0: BEGIN(FULLMATRIX);
    break;
  case 1: BEGIN(EDGELIST);
    break;
  case 2: BEGIN(NODELIST);
    break;
  }
  return DATA; }
  YY_BREAK
case 6:
YY_RULE_SETUP
#line 99 "/src/igraph/src/io/dl-lexer.l"
{ BEGIN(LABELM); return LABELS; }
  YY_BREAK
case 7:
YY_RULE_SETUP
#line 100 "/src/igraph/src/io/dl-lexer.l"
{
  return LABELSEMBEDDED; }
  YY_BREAK
case 8:
YY_RULE_SETUP
#line 102 "/src/igraph/src/io/dl-lexer.l"
{
  yyextra->mode=0; return FORMATFULLMATRIX; }
  YY_BREAK
case 9:
YY_RULE_SETUP
#line 104 "/src/igraph/src/io/dl-lexer.l"
{
  yyextra->mode=1; return FORMATEDGELIST1; }
  YY_BREAK
case 10:
YY_RULE_SETUP
#line 106 "/src/igraph/src/io/dl-lexer.l"
{
  yyextra->mode=2; return FORMATNODELIST1; }
  YY_BREAK
case 11:
YY_RULE_SETUP
#line 109 "/src/igraph/src/io/dl-lexer.l"
{ /* eaten up */ }
  YY_BREAK
case 12:
YY_RULE_SETUP
#line 110 "/src/igraph/src/io/dl-lexer.l"
{ return LABEL; }
  YY_BREAK
case 13:
YY_RULE_SETUP
#line 112 "/src/igraph/src/io/dl-lexer.l"
{ return DIGIT; }
  YY_BREAK
case 14:
YY_RULE_SETUP
#line 113 "/src/igraph/src/io/dl-lexer.l"
{ return LABEL; }
  YY_BREAK
case 15:
YY_RULE_SETUP
#line 114 "/src/igraph/src/io/dl-lexer.l"
{ }
  YY_BREAK
case 16:
YY_RULE_SETUP
#line 116 "/src/igraph/src/io/dl-lexer.l"
{ return NUM; }
  YY_BREAK
case 17:
YY_RULE_SETUP
#line 117 "/src/igraph/src/io/dl-lexer.l"
{ return LABEL; }
  YY_BREAK
case 18:
YY_RULE_SETUP
#line 118 "/src/igraph/src/io/dl-lexer.l"
{ }
  YY_BREAK
case 19:
YY_RULE_SETUP
#line 120 "/src/igraph/src/io/dl-lexer.l"
{ return NUM; }
  YY_BREAK
case 20:
YY_RULE_SETUP
#line 121 "/src/igraph/src/io/dl-lexer.l"
{ return LABEL; }
  YY_BREAK
case 21:
YY_RULE_SETUP
#line 122 "/src/igraph/src/io/dl-lexer.l"
{ }
  YY_BREAK
case 22:
YY_RULE_SETUP
#line 124 "/src/igraph/src/io/dl-lexer.l"
{ /* eaten up */ }
  YY_BREAK
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(LABELM):
case YY_STATE_EOF(FULLMATRIX):
case YY_STATE_EOF(EDGELIST):
case YY_STATE_EOF(NODELIST):
#line 126 "/src/igraph/src/io/dl-lexer.l"
{
                          if (yyextra->eof) {
                            yyterminate();
                          } else {
                            yyextra->eof=1;
                            BEGIN(INITIAL);
                            return EOFF;
                          }
                        }
  YY_BREAK
case 23:
YY_RULE_SETUP
#line 136 "/src/igraph/src/io/dl-lexer.l"
{ return 0; }
  YY_BREAK
case 24:
YY_RULE_SETUP
#line 137 "/src/igraph/src/io/dl-lexer.l"
YY_FATAL_ERROR( "flex scanner jammed" );
  YY_BREAK
#line 1411 "/src/igraph/build/src/io/parsers/dl-lexer.c"

  case YY_END_OF_BUFFER:
    {
    /* Amount of text matched not including the EOB char. */
    int yy_amount_of_matched_text = (int) (yy_cp - yyg->yytext_ptr) - 1;

    /* Undo the effects of YY_DO_BEFORE_ACTION. */
    *yy_cp = yyg->yy_hold_char;
    YY_RESTORE_YY_MORE_OFFSET

    if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
      {
      /* We're scanning a new file or input source.  It's
       * possible that this happened because the user
       * just pointed yyin at a new source and called
       * yylex().  If so, then we have to assure
       * consistency between YY_CURRENT_BUFFER and our
       * globals.  Here is the right place to do so, because
       * this is the first action (other than possibly a
       * back-up) that will match for the new input source.
       */
      yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
      YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin;
      YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
      }

    /* Note that here we test for yy_c_buf_p "<=" to the position
     * of the first EOB in the buffer, since yy_c_buf_p will
     * already have been incremented past the NUL character
     * (since all states make transitions on EOB to the
     * end-of-buffer state).  Contrast this with the test
     * in input().
     */
    if ( yyg->yy_c_buf_p <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] )
      { /* This was really a NUL. */
      yy_state_type yy_next_state;

      yyg->yy_c_buf_p = yyg->yytext_ptr + yy_amount_of_matched_text;

      yy_current_state = yy_get_previous_state( yyscanner );

      /* Okay, we're now positioned to make the NUL
       * transition.  We couldn't have
       * yy_get_previous_state() go ahead and do it
       * for us because it doesn't know how to deal
       * with the possibility of jamming (and we don't
       * want to build jamming into it because then it
       * will run more slowly).
       */

      yy_next_state = yy_try_NUL_trans( yy_current_state , yyscanner);

      yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;

      if ( yy_next_state )
        {
        /* Consume the NUL. */
        yy_cp = ++yyg->yy_c_buf_p;
        yy_current_state = yy_next_state;
        goto yy_match;
        }

      else
        {
        yy_cp = yyg->yy_c_buf_p;
        goto yy_find_action;
        }
      }

    else switch ( yy_get_next_buffer( yyscanner ) )
      {
      case EOB_ACT_END_OF_FILE:
        {
        yyg->yy_did_buffer_switch_on_eof = 0;

        if ( yywrap( yyscanner ) )
          {
          /* Note: because we've taken care in
           * yy_get_next_buffer() to have set up
           * yytext, we can now set up
           * yy_c_buf_p so that if some total
           * hoser (like flex itself) wants to
           * call the scanner after we return the
           * YY_NULL, it'll still work - another
           * YY_NULL will get returned.
           */
          yyg->yy_c_buf_p = yyg->yytext_ptr + YY_MORE_ADJ;

          yy_act = YY_STATE_EOF(YY_START);
          goto do_action;
          }

        else
          {
          if ( ! yyg->yy_did_buffer_switch_on_eof )
            YY_NEW_FILE;
          }
        break;
        }

      case EOB_ACT_CONTINUE_SCAN:
        yyg->yy_c_buf_p =
          yyg->yytext_ptr + yy_amount_of_matched_text;

        yy_current_state = yy_get_previous_state( yyscanner );

        yy_cp = yyg->yy_c_buf_p;
        yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
        goto yy_match;

      case EOB_ACT_LAST_MATCH:
        yyg->yy_c_buf_p =
        &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars];

        yy_current_state = yy_get_previous_state( yyscanner );

        yy_cp = yyg->yy_c_buf_p;
        yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
        goto yy_find_action;
      }
    break;
    }

  default:
    YY_FATAL_ERROR(
      "fatal flex scanner internal error--no action found" );
  } /* end of action switch */
    } /* end of scanning one token */
  } /* end of user's declarations */
} /* end of yylex */

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

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

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

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

  /* Try to read more data. */

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

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

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

  else
    {
      int num_to_read =
      YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;

    while ( num_to_read <= 0 )
      { /* Not enough room in the buffer - grow it. */

      /* just a shorter name for the current buffer */
      YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE;

      int yy_c_buf_p_offset =
        (int) (yyg->yy_c_buf_p - b->yy_ch_buf);

      if ( b->yy_is_our_buffer )
        {
        int new_size = b->yy_buf_size * 2;

        if ( new_size <= 0 )
          b->yy_buf_size += b->yy_buf_size / 8;
        else
          b->yy_buf_size *= 2;

        b->yy_ch_buf = (char *)
          /* Include room in for 2 EOB chars. */
          yyrealloc( (void *) b->yy_ch_buf,
               (yy_size_t) (b->yy_buf_size + 2) , yyscanner );
        }
      else
        /* Can't grow it, we don't own it. */
        b->yy_ch_buf = NULL;

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

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

      num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
            number_to_move - 1;

      }

    if ( num_to_read > YY_READ_BUF_SIZE )
      num_to_read = YY_READ_BUF_SIZE;

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

    YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
    }

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

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

  else
    ret_val = EOB_ACT_CONTINUE_SCAN;

  if ((yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
    /* Extend the array by 50%, plus the number we really need. */
    int new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1);
    YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc(
      (void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf, (yy_size_t) new_size , yyscanner );
    if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
      YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
    /* "- 2" to take care of EOB's */
    YY_CURRENT_BUFFER_LVALUE->yy_buf_size = (int) (new_size - 2);
  }

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

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

  return ret_val;
}

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

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

  yy_current_state = yyg->yy_start;

  for ( yy_cp = yyg->yytext_ptr + YY_MORE_ADJ; yy_cp < yyg->yy_c_buf_p; ++yy_cp )
    {
    YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 46);
    if ( yy_accept[yy_current_state] )
      {
      yyg->yy_last_accepting_state = yy_current_state;
      yyg->yy_last_accepting_cpos = yy_cp;
      }
    while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
      {
      yy_current_state = (int) yy_def[yy_current_state];
      if ( yy_current_state >= 129 )
        yy_c = yy_meta[yy_c];
      }
    yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
    }

  return yy_current_state;
}

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

  YY_CHAR yy_c = 46;
  if ( yy_accept[yy_current_state] )
    {
    yyg->yy_last_accepting_state = yy_current_state;
    yyg->yy_last_accepting_cpos = yy_cp;
    }
  while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
    {
    yy_current_state = (int) yy_def[yy_current_state];
    if ( yy_current_state >= 129 )
      yy_c = yy_meta[yy_c];
    }
  yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
  yy_is_jam = (yy_current_state == 128);

  (void)yyg;
  return yy_is_jam ? 0 : yy_current_state;
}

#ifndef YY_NO_UNPUT

#endif

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

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

  *yyg->yy_c_buf_p = yyg->yy_hold_char;

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

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

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

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

          /*FALLTHROUGH*/

        case EOB_ACT_END_OF_FILE:
          {
          if ( yywrap( yyscanner ) )
            return 0;

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

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

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

  if ( c == '\n' )
    
    do{ yylineno++;
        yycolumn=0;
    }while(0)
;

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

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

  if ( ! YY_CURRENT_BUFFER ){
        yyensure_buffer_stack (yyscanner);
    YY_CURRENT_BUFFER_LVALUE =
            yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner);
  }

  yy_init_buffer( YY_CURRENT_BUFFER, input_file , yyscanner);
  yy_load_buffer_state( yyscanner );
}

/** Switch to a different input buffer.
 * @param new_buffer The new input buffer.
 * @param yyscanner The scanner object.
 */
    void yy_switch_to_buffer  (YY_BUFFER_STATE  new_buffer , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

  /* TODO. We should be able to replace this entire function body
   * with
   *    yypop_buffer_state();
   *    yypush_buffer_state(new_buffer);
     */
  yyensure_buffer_stack (yyscanner);
  if ( YY_CURRENT_BUFFER == new_buffer )
    return;

  if ( YY_CURRENT_BUFFER )
    {
    /* Flush out information for old buffer. */
    *yyg->yy_c_buf_p = yyg->yy_hold_char;
    YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
    YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
    }

  YY_CURRENT_BUFFER_LVALUE = new_buffer;
  yy_load_buffer_state( yyscanner );

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

static void yy_load_buffer_state  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
  yyg->yytext_ptr = yyg->yy_c_buf_p = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
  yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
  yyg->yy_hold_char = *yyg->yy_c_buf_p;
}

/** Allocate and initialize an input buffer state.
 * @param file A readable stream.
 * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
 * @param yyscanner The scanner object.
 * @return the allocated buffer state.
 */
    YY_BUFFER_STATE yy_create_buffer  (FILE * file, int  size , yyscan_t yyscanner)
{
  YY_BUFFER_STATE b;
    
  b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) , yyscanner );
  if ( ! b )
    YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );

  b->yy_buf_size = size;

  /* yy_ch_buf has to be 2 characters longer than the size given because
   * we need to put in 2 end-of-buffer characters.
   */
  b->yy_ch_buf = (char *) yyalloc( (yy_size_t) (b->yy_buf_size + 2) , yyscanner );
  if ( ! b->yy_ch_buf )
    YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );

  b->yy_is_our_buffer = 1;

  yy_init_buffer( b, file , yyscanner);

  return b;
}

/** Destroy the buffer.
 * @param b a buffer created with yy_create_buffer()
 * @param yyscanner The scanner object.
 */
    void yy_delete_buffer (YY_BUFFER_STATE  b , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

  if ( ! b )
    return;

  if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
    YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;

  if ( b->yy_is_our_buffer )
    yyfree( (void *) b->yy_ch_buf , yyscanner );

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

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

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

  yy_flush_buffer( b , yyscanner);

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

    /* If b is the current buffer, then yy_init_buffer was _probably_
     * called from yyrestart() or through yy_get_next_buffer.
     * In that case, we don't want to reset the lineno or column.
     */
    if (b != YY_CURRENT_BUFFER){
        b->yy_bs_lineno = 1;
        b->yy_bs_column = 0;
    }

        b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
    
  errno = oerrno;
}

/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
 * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
 * @param yyscanner The scanner object.
 */
    void yy_flush_buffer (YY_BUFFER_STATE  b , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  if ( ! b )
    return;

  b->yy_n_chars = 0;

  /* We always need two end-of-buffer characters.  The first causes
   * a transition to the end-of-buffer state.  The second causes
   * a jam in that state.
   */
  b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
  b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;

  b->yy_buf_pos = &b->yy_ch_buf[0];

  b->yy_at_bol = 1;
  b->yy_buffer_status = YY_BUFFER_NEW;

  if ( b == YY_CURRENT_BUFFER )
    yy_load_buffer_state( yyscanner );
}

/** Pushes the new state onto the stack. The new state becomes
 *  the current state. This function will allocate the stack
 *  if necessary.
 *  @param new_buffer The new state.
 *  @param yyscanner The scanner object.
 */
void yypush_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  if (new_buffer == NULL)
    return;

  yyensure_buffer_stack(yyscanner);

  /* This block is copied from yy_switch_to_buffer. */
  if ( YY_CURRENT_BUFFER )
    {
    /* Flush out information for old buffer. */
    *yyg->yy_c_buf_p = yyg->yy_hold_char;
    YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
    YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
    }

  /* Only push if top exists. Otherwise, replace top. */
  if (YY_CURRENT_BUFFER)
    yyg->yy_buffer_stack_top++;
  YY_CURRENT_BUFFER_LVALUE = new_buffer;

  /* copied from yy_switch_to_buffer. */
  yy_load_buffer_state( yyscanner );
  yyg->yy_did_buffer_switch_on_eof = 1;
}

/** Removes and deletes the top of the stack, if present.
 *  The next element becomes the new top.
 *  @param yyscanner The scanner object.
 */
void yypop_buffer_state (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  if (!YY_CURRENT_BUFFER)
    return;

  yy_delete_buffer(YY_CURRENT_BUFFER , yyscanner);
  YY_CURRENT_BUFFER_LVALUE = NULL;
  if (yyg->yy_buffer_stack_top > 0)
    --yyg->yy_buffer_stack_top;

  if (YY_CURRENT_BUFFER) {
    yy_load_buffer_state( yyscanner );
    yyg->yy_did_buffer_switch_on_eof = 1;
  }
}

/* Allocates the stack if it does not exist.
 *  Guarantees space for at least one push.
 */
static void yyensure_buffer_stack (yyscan_t yyscanner)
{
  yy_size_t num_to_alloc;
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

  if (!yyg->yy_buffer_stack) {

    /* First allocation is just for 2 elements, since we don't know if this
     * scanner will even need a stack. We use 2 instead of 1 to avoid an
     * immediate realloc on the next call.
         */
      num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */
    yyg->yy_buffer_stack = (struct yy_buffer_state**)yyalloc
                (num_to_alloc * sizeof(struct yy_buffer_state*)
                , yyscanner);
    if ( ! yyg->yy_buffer_stack )
      YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );

    memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*));

    yyg->yy_buffer_stack_max = num_to_alloc;
    yyg->yy_buffer_stack_top = 0;
    return;
  }

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

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

    num_to_alloc = yyg->yy_buffer_stack_max + grow_size;
    yyg->yy_buffer_stack = (struct yy_buffer_state**)yyrealloc
                (yyg->yy_buffer_stack,
                num_to_alloc * sizeof(struct yy_buffer_state*)
                , yyscanner);
    if ( ! yyg->yy_buffer_stack )
      YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );

    /* zero only the new slots.*/
    memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*));
    yyg->yy_buffer_stack_max = num_to_alloc;
  }
}

/** Setup the input buffer state to scan directly from a user-specified character buffer.
 * @param base the character buffer
 * @param size the size in bytes of the character buffer
 * @param yyscanner The scanner object.
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE yy_scan_buffer  (char * base, yy_size_t  size , yyscan_t yyscanner)
{
  YY_BUFFER_STATE b;
    
  if ( size < 2 ||
       base[size-2] != YY_END_OF_BUFFER_CHAR ||
       base[size-1] != YY_END_OF_BUFFER_CHAR )
    /* They forgot to leave room for the EOB's. */
    return NULL;

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

  b->yy_buf_size = (int) (size - 2);  /* "- 2" to take care of EOB's */
  b->yy_buf_pos = b->yy_ch_buf = base;
  b->yy_is_our_buffer = 0;
  b->yy_input_file = NULL;
  b->yy_n_chars = b->yy_buf_size;
  b->yy_is_interactive = 0;
  b->yy_at_bol = 1;
  b->yy_fill_buffer = 0;
  b->yy_buffer_status = YY_BUFFER_NEW;

  yy_switch_to_buffer( b , yyscanner );

  return b;
}

/** Setup the input buffer state to scan a string. The next call to yylex() will
 * scan from a @e copy of @a str.
 * @param yystr a NUL-terminated string to scan
 * @param yyscanner The scanner object.
 * @return the newly allocated buffer state object.
 * @note If you want to scan bytes that may contain NUL values, then use
 *       yy_scan_bytes() instead.
 */
YY_BUFFER_STATE yy_scan_string (const char * yystr , yyscan_t yyscanner)
{
    
  return yy_scan_bytes( yystr, (int) strlen(yystr) , yyscanner);
}

/** Setup the input buffer state to scan the given bytes. The next call to yylex() will
 * scan from a @e copy of @a bytes.
 * @param yybytes the byte buffer to scan
 * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
 * @param yyscanner The scanner object.
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE yy_scan_bytes  (const char * yybytes, int  _yybytes_len , yyscan_t yyscanner)
{
  YY_BUFFER_STATE b;
  char *buf;
  yy_size_t n;
  int i;
    
  /* Get memory for full buffer, including space for trailing EOB's. */
  n = (yy_size_t) (_yybytes_len + 2);
  buf = (char *) yyalloc( n , yyscanner );
  if ( ! buf )
    YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );

  for ( i = 0; i < _yybytes_len; ++i )
    buf[i] = yybytes[i];

  buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;

  b = yy_scan_buffer( buf, n , yyscanner);
  if ( ! b )
    YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );

  /* It's okay to grow etc. this buffer, and we should throw it
   * away when we're done.
   */
  b->yy_is_our_buffer = 1;

  return b;
}

#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif

static void yynoreturn yy_fatal_error (const char* msg , yyscan_t yyscanner)
{
  struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  (void)yyg;
  fprintf( stderr, "%s\n", msg );
  exit( YY_EXIT_FAILURE );
}

/* Redefine yyless() so it works in section 3 code. */

#undef yyless
#define yyless(n) \
  do \
    { \
    /* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
    yytext[yyleng] = yyg->yy_hold_char; \
    yyg->yy_c_buf_p = yytext + yyless_macro_arg; \
    yyg->yy_hold_char = *yyg->yy_c_buf_p; \
    *yyg->yy_c_buf_p = '\0'; \
    yyleng = yyless_macro_arg; \
    } \
  while ( 0 )

/* Accessor  methods (get/set functions) to struct members. */

/** Get the user-defined data for this scanner.
 * @param yyscanner The scanner object.
 */
YY_EXTRA_TYPE yyget_extra  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyextra;
}

/** Get the current line number.
 * @param yyscanner The scanner object.
 */
int yyget_lineno  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

        if (! YY_CURRENT_BUFFER)
            return 0;
    
    return yylineno;
}

/** Get the current column number.
 * @param yyscanner The scanner object.
 */
int yyget_column  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

        if (! YY_CURRENT_BUFFER)
            return 0;
    
    return yycolumn;
}

/** Get the input stream.
 * @param yyscanner The scanner object.
 */
FILE *yyget_in  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyin;
}

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

/** Get the length of the current token.
 * @param yyscanner The scanner object.
 */
int yyget_leng  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yyleng;
}

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

char *yyget_text  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yytext;
}

/** Set the user-defined data. This data is never touched by the scanner.
 * @param user_defined The data to be associated with this scanner.
 * @param yyscanner The scanner object.
 */
void yyset_extra (YY_EXTRA_TYPE  user_defined , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yyextra = user_defined ;
}

/** Set the current line number.
 * @param _line_number line number
 * @param yyscanner The scanner object.
 */
void yyset_lineno (int  _line_number , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

        /* lineno is only valid if an input buffer exists. */
        if (! YY_CURRENT_BUFFER )
           YY_FATAL_ERROR( "yyset_lineno called with no buffer" );
    
    yylineno = _line_number;
}

/** Set the current column.
 * @param _column_no column number
 * @param yyscanner The scanner object.
 */
void yyset_column (int  _column_no , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;

        /* column is only valid if an input buffer exists. */
        if (! YY_CURRENT_BUFFER )
           YY_FATAL_ERROR( "yyset_column called with no buffer" );
    
    yycolumn = _column_no;
}

/** Set the input stream. This does not discard the current
 * input buffer.
 * @param _in_str A readable stream.
 * @param yyscanner The scanner object.
 * @see yy_switch_to_buffer
 */
void yyset_in (FILE *  _in_str , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yyin = _in_str ;
}

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

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

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

/* Accessor methods for yylval and yylloc */

YYSTYPE * yyget_lval  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yylval;
}

void yyset_lval (YYSTYPE *  yylval_param , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yylval = yylval_param;
}

YYLTYPE *yyget_lloc  (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    return yylloc;
}
    
void yyset_lloc (YYLTYPE *  yylloc_param , yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    yylloc = yylloc_param;
}
    
/* User-visible API */

/* yylex_init is special because it creates the scanner itself, so it is
 * the ONLY reentrant function that doesn't take the scanner as the last argument.
 * That's why we explicitly handle the declaration, instead of using our macros.
 */
int yylex_init(yyscan_t* ptr_yy_globals)
{
    if (ptr_yy_globals == NULL){
        errno = EINVAL;
        return 1;
    }

    *ptr_yy_globals = (yyscan_t) yyalloc ( sizeof( struct yyguts_t ), NULL );

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

    /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */
    memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));

    return yy_init_globals ( *ptr_yy_globals );
}

/* yylex_init_extra has the same functionality as yylex_init, but follows the
 * convention of taking the scanner as the last argument. Note however, that
 * this is a *pointer* to a scanner, as it will be allocated by this call (and
 * is the reason, too, why this function also must handle its own declaration).
 * The user defined value in the first argument will be available to yyalloc in
 * the yyextra field.
 */
int yylex_init_extra( YY_EXTRA_TYPE yy_user_defined, yyscan_t* ptr_yy_globals )
{
    struct yyguts_t dummy_yyguts;

    yyset_extra (yy_user_defined, &dummy_yyguts);

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

    *ptr_yy_globals = (yyscan_t) yyalloc ( sizeof( struct yyguts_t ), &dummy_yyguts );

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

    /* By setting to 0xAA, we expose bugs in
    yy_init_globals. Leave at 0x00 for releases. */
    memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));

    yyset_extra (yy_user_defined, *ptr_yy_globals);

    return yy_init_globals ( *ptr_yy_globals );
}

static int yy_init_globals (yyscan_t yyscanner)
{
    struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
    /* Initialization is the same as for the non-reentrant scanner.
     * This function is called from yylex_destroy(), so don't allocate here.
     */

    yyg->yy_buffer_stack = NULL;
    yyg->yy_buffer_stack_top = 0;
    yyg->yy_buffer_stack_max = 0;
    yyg->yy_c_buf_p = NULL;
    yyg->yy_init = 0;
    yyg->yy_start = 0;

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

/* Defined in main.c */
#ifdef YY_STDINIT
    yyin = stdin;
    yyout = stdout;
#else
    yyin = NULL;
    yyout = NULL;
#endif

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

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

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

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

    /* Destroy the start condition stack. */
        yyfree( yyg->yy_start_stack , yyscanner );
        yyg->yy_start_stack = NULL;

    /* Reset the globals. This is important in a non-reentrant scanner so the next time
     * yylex() is called, initialization will occur. */
    yy_init_globals( yyscanner);

    /* Destroy the main struct (reentrant only). */
    yyfree ( yyscanner , yyscanner );
    yyscanner = NULL;
    return 0;
}

/*
 * Internal utility routines.
 */

#ifndef yytext_ptr
static void yy_flex_strncpy (char* s1, const char * s2, int n , yyscan_t yyscanner)
{
  struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  (void)yyg;

  int i;
  for ( i = 0; i < n; ++i )
    s1[i] = s2[i];
}
#endif

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

  return n;
}
#endif

void *yyalloc (yy_size_t  size , yyscan_t yyscanner)
{
  struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  (void)yyg;
  return malloc(size);
}

void *yyrealloc  (void * ptr, yy_size_t  size , yyscan_t yyscanner)
{
  struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  (void)yyg;

  /* The cast to (char *) in the following accommodates both
   * implementations that use char* generic pointers, and those
   * that use void* generic pointers.  It works with the latter
   * because both ANSI C and C++ allow castless assignment from
   * any pointer type to void*, and deal with argument conversions
   * as though doing an assignment.
   */
  return realloc(ptr, size);
}

void yyfree (void * ptr , yyscan_t yyscanner)
{
  struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
  (void)yyg;
  free( (char *) ptr ); /* see yyrealloc() for (char *) cast */
}

#define YYTABLES_NAME "yytables"

#line 137 "/src/igraph/src/io/dl-lexer.l"

Coverage Report

Created: 2026-01-05 06:07