File indexing completed on 2024-05-05 04:37:07

 #line 2 "cool_lexer.cpp"
 
 #line 4 "cool_lexer.cpp"
 
 #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 39
 #if YY_FLEX_SUBMINOR_VERSION > 0
 #define FLEX_BETA
 #endif
 
     /* The c++ scanner is a mess. The FlexLexer.h header file relies on the
      * following macro. This is required in order to pass the c++-multiple-scanners
      * test in the regression suite. We get reports that it breaks inheritance.
      * We will address this in a future release of flex, or omit the C++ scanner
      * altogether.
      */
     #define yyFlexLexer yyFlexLexer
 
 /* First, we deal with  platform-specific or compiler-specific issues. */
 
 /* begin standard C headers. */
 
 /* 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 */
 
 /* begin standard C++ headers. */
 #include <iostream> 
 #include <errno.h>
 #include <cstdlib>
 #include <cstdio>
 #include <cstring>
 /* end standard C++ headers. */
 
 #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)
 
 /* Enter a start condition.  This macro really ought to take a parameter,
  * but we do it the disgusting crufty way forced on us by the ()-less
  * definition of BEGIN.
  */
 #define BEGIN (yy_start) = 1 + 2 *
 
 /* Translate the current start state into a value that can be later handed
  * to BEGIN to return to the state.  The YYSTATE alias is for lex
  * compatibility.
  */
 #define YY_START (((yy_start) - 1) / 2)
 #define YYSTATE YY_START
 
 /* Action number for EOF rule of a given start state. */
 #define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
 
 /* Special action meaning "start processing a new file". */
 #define YY_NEW_FILE yyrestart( yyin  )
 
 #define YY_END_OF_BUFFER_CHAR 0
 
 /* Size of default input buffer. */
 #ifndef YY_BUF_SIZE
 #define YY_BUF_SIZE 16384
 #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
 
 extern yy_size_t yyleng;
 
 #define EOB_ACT_CONTINUE_SCAN 0
 #define EOB_ACT_END_OF_FILE 1
 #define EOB_ACT_LAST_MATCH 2
 
     #define YY_LESS_LINENO(n)
     #define YY_LINENO_REWIND_TO(ptr)
     
 /* Return all but the first "n" matched characters back to the input stream. */
 #define yyless(n) \
     do \
         { \
         /* Undo effects of setting up yytext. */ \
         int yyless_macro_arg = (n); \
         YY_LESS_LINENO(yyless_macro_arg);\
         *yy_cp = (yy_hold_char); \
         YY_RESTORE_YY_MORE_OFFSET \
         (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, (yytext_ptr)  )
 
 #ifndef YY_STRUCT_YY_BUFFER_STATE
 #define YY_STRUCT_YY_BUFFER_STATE
 struct yy_buffer_state
     {
 
     std::istream* 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.
      */
     yy_size_t 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 ( (yy_buffer_stack) \
                           ? (yy_buffer_stack)[(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 (yy_buffer_stack)[(yy_buffer_stack_top)]
 
 void *yyalloc (yy_size_t  );
 void *yyrealloc (void *,yy_size_t  );
 void yyfree (void *  );
 
 #define yy_new_buffer yy_create_buffer
 
 #define yy_set_interactive(is_interactive) \
     { \
     if ( ! YY_CURRENT_BUFFER ){ \
         yyensure_buffer_stack (); \
         YY_CURRENT_BUFFER_LVALUE =    \
             yy_create_buffer( yyin, YY_BUF_SIZE ); \
     } \
     YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
     }
 
 #define yy_set_bol(at_bol) \
     { \
     if ( ! YY_CURRENT_BUFFER ){\
         yyensure_buffer_stack (); \
         YY_CURRENT_BUFFER_LVALUE =    \
             yy_create_buffer( yyin, YY_BUF_SIZE ); \
     } \
     YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
     }
 
 #define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
 
 /* Begin user sect3 */
 #define YY_SKIP_YYWRAP
 
 typedef unsigned char YY_CHAR;
 
 #define yytext_ptr yytext
 #define YY_INTERACTIVE
 
 #include <FlexLexer.h>
 
 int yyFlexLexer::yywrap() { return 1; }
 int yyFlexLexer::yylex()
     {
     LexerError( "yyFlexLexer::yylex invoked but %option yyclass used" );
     return 0;
     }
 
 #define YY_DECL int cool::Lexer::yylex()
 
 /* Done after the current pattern has been matched and before the
  * corresponding action - sets up yytext.
  */
 #define YY_DO_BEFORE_ACTION \
     (yytext_ptr) = yy_bp; \
     yyleng = (size_t) (yy_cp - yy_bp); \
     (yy_hold_char) = *yy_cp; \
     *yy_cp = '\0'; \
     (yy_c_buf_p) = yy_cp;
 
 #define YY_NUM_RULES 51
 #define YY_END_OF_BUFFER 52
 /* 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[116] =
     {   0,
         0,    0,    0,    0,   52,   50,    1,    1,   50,    7,
         8,   17,   15,   12,   16,   13,   18,   49,   22,   11,
        21,   19,   14,   47,   47,   48,   48,   48,   48,   48,
        48,   48,   48,   48,   48,   48,    9,   10,   25,    6,
         5,    6,    1,    0,   46,    0,    3,    2,   49,   23,
        20,   24,   47,   47,   48,   48,   48,   48,   48,   48,
        36,   34,   35,   48,   48,   48,   48,   48,   41,   48,
        48,   48,   48,    4,    2,   47,   48,   48,   48,   48,
        48,   48,   48,   38,   48,   40,   26,   48,   48,   48,
        48,   47,   28,   48,   32,   29,   48,   48,   48,   39,
 
        42,   43,   44,   48,   31,   30,   33,   48,   48,   45,
        48,   27,   48,   37,    0
     } ;
 
 static yyconst flex_int32_t yy_ec[256] =
     {   0,
         1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
         1,    2,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    2,    1,    4,    1,    1,    1,    1,    1,    5,
         6,    7,    8,    9,   10,   11,   12,   13,   13,   13,
        13,   13,   13,   13,   13,   13,   13,   14,   15,   16,
        17,   18,    1,   19,   20,   20,   21,   20,   20,   20,
        20,   20,   20,   20,   20,   20,   20,   20,   20,   20,
        20,   20,   20,   20,   20,   20,   20,   20,   20,   20,
         1,   22,    1,    1,   23,    1,   24,   23,   25,   26,
 
        27,   28,   23,   29,   30,   23,   23,   31,   23,   32,
        33,   34,   23,   35,   36,   37,   38,   39,   40,   23,
        23,   23,   41,    1,   42,   43,    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 yyconst flex_int32_t yy_meta[44] =
     {   0,
         1,    1,    2,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    3,    1,    1,    1,    1,    1,    1,    3,
         3,    1,    3,    3,    3,    3,    3,    3,    3,    3,
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
         1,    1,    1
     } ;
 
 static yyconst flex_int16_t yy_base[121] =
     {   0,
         0,    0,   41,   42,  135,  136,   44,   48,   48,  127,
       136,  136,  136,  136,  123,  136,  136,  119,  136,  136,
        43,  113,  136,    0,   99,    0,   30,   26,   34,   27,
        38,   39,  101,   95,   38,   98,  136,  136,  136,  136,
       136,  120,   66,   52,  136,  122,  136,    0,  111,  136,
       136,  136,    0,   99,    0,   86,   97,   84,   95,   87,
         0,    0,   88,   77,   78,   81,   73,   75,    0,   78,
        83,   71,   78,  136,    0,   71,   79,   69,   77,   78,
        66,   74,   67,    0,   65,    0,    0,   67,   65,   69,
        64,   58,    0,   57,    0,    0,   65,   56,   60,    0,
 
         0,    0,    0,   62,    0,    0,    0,   58,   61,    0,
        49,    0,   49,    0,  136,   74,   77,   81,   79,   80
     } ;
 
 static yyconst flex_int16_t yy_def[121] =
     {   0,
       115,    1,  116,  116,  115,  115,  115,  115,  117,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115,  115,
       115,  115,  115,  118,  118,  119,  119,  119,  119,  119,
       119,  119,  119,  119,  119,  119,  115,  115,  115,  115,
       115,  115,  115,  117,  115,  117,  115,  120,  115,  115,
       115,  115,  118,  118,  119,  119,  119,  119,  119,  119,
       119,  119,  119,  119,  119,  119,  119,  119,  119,  119,
       119,  119,  119,  115,  120,  118,  119,  119,  119,  119,
       119,  119,  119,  119,  119,  119,  119,  119,  119,  119,
       119,  118,  119,  119,  119,  119,  119,  119,  119,  119,
 
       119,  119,  119,  119,  118,  119,  119,  119,  119,  119,
       119,  119,  119,  119,    0,  115,  115,  115,  115,  115
     } ;
 
 static yyconst flex_int16_t yy_nxt[180] =
     {   0,
         6,    7,    8,    9,   10,   11,   12,   13,   14,   15,
        16,   17,   18,   19,   20,   21,   22,    6,   23,   24,
        25,    6,   26,   26,   27,   26,   28,   29,   26,   30,
        31,   32,   33,   34,   26,   26,   35,   26,   26,   36,
        37,   38,   39,   41,   41,   43,   43,   42,   42,   43,
        43,   45,   50,   56,   62,   45,   58,   60,   63,   51,
        57,   59,   64,   61,   65,   67,   71,   43,   43,   46,
        66,   68,   72,   46,   40,   40,   40,   44,   44,   44,
        75,   55,   75,   53,  114,  113,  112,  111,  110,  109,
       108,  107,  106,  105,  104,  103,  102,  101,  100,   99,
 
        98,   97,   96,   95,   94,   93,   92,   91,   90,   89,
        88,   87,   86,   85,   84,   83,   82,   81,   80,   79,
        78,   77,   76,   49,  115,   74,   73,   70,   69,   54,
        52,   49,   48,   47,  115,    5,  115,  115,  115,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115
     } ;
 
 static yyconst flex_int16_t yy_chk[180] =
     {   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,    1,    1,    3,    4,    7,    7,    3,    4,    8,
         8,    9,   21,   27,   30,   44,   28,   29,   30,   21,
        27,   28,   30,   29,   31,   32,   35,   43,   43,    9,
        31,   32,   35,   44,  116,  116,  116,  117,  117,  117,
       120,  119,  120,  118,  113,  111,  109,  108,  104,   99,
        98,   97,   94,   92,   91,   90,   89,   88,   85,   83,
 
        82,   81,   80,   79,   78,   77,   76,   73,   72,   71,
        70,   68,   67,   66,   65,   64,   63,   60,   59,   58,
        57,   56,   54,   49,   46,   42,   36,   34,   33,   25,
        22,   18,   15,   10,    5,  115,  115,  115,  115,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115,  115,
       115,  115,  115,  115,  115,  115,  115,  115,  115
     } ;
 
 /* 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 "cool_lexer.ll"
 #line 8 "cool_lexer.ll"
 
 #define DONT_INCLUDE_FLEXLEXER
 #include "cool_lexer.h"
 
 
 #line 499 "cool_lexer.cpp"
 
 #define INITIAL 0
 #define IN_BLOCKCOMMENT 1
 
 #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
 
 #ifndef yytext_ptr
 static void yy_flex_strncpy (char *,yyconst char *,int );
 #endif
 
 #ifdef YY_NEED_STRLEN
 static int yy_flex_strlen (yyconst char * );
 #endif
 
 #ifndef YY_NO_INPUT
 
 #endif
 
 /* Amount of stuff to slurp up with each read. */
 #ifndef YY_READ_BUF_SIZE
 #define YY_READ_BUF_SIZE 8192
 #endif
 
 /* Copy whatever the last rule matched to the standard output. */
 #ifndef ECHO
 #define ECHO LexerOutput( yytext, yyleng )
 #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 ( (result = LexerInput( (char *) buf, max_size )) < 0 ) \
         YY_FATAL_ERROR( "input in flex scanner failed" );
 
 #endif
 
 /* No semi-colon after return; correct usage is to write "yyterminate();" -
  * we don't want an extra ';' after the "return" because that will cause
  * some compilers to complain about unreachable statements.
  */
 #ifndef yyterminate
 #define yyterminate() return YY_NULL
 #endif
 
 /* Number of entries by which start-condition stack grows. */
 #ifndef YY_START_STACK_INCR
 #define YY_START_STACK_INCR 25
 #endif
 
 /* Report a fatal error. */
 #ifndef YY_FATAL_ERROR
 #define YY_FATAL_ERROR(msg) LexerError( msg )
 #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
 #define YY_DECL int yyFlexLexer::yylex()
 #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;
     
     if ( !(yy_init) )
         {
         (yy_init) = 1;
 
 #ifdef YY_USER_INIT
         YY_USER_INIT;
 #endif
 
         if ( ! (yy_start) )
             (yy_start) = 1; /* first start state */
 
         if ( ! yyin )
             yyin = & std::cin;
 
         if ( ! yyout )
             yyout = & std::cout;
 
         if ( ! YY_CURRENT_BUFFER ) {
             yyensure_buffer_stack ();
             YY_CURRENT_BUFFER_LVALUE =
                 yy_create_buffer( yyin, YY_BUF_SIZE );
         }
 
         yy_load_buffer_state(  );
         }
 
     {
 #line 19 "cool_lexer.ll"
 
 
  /* whitespace, newlines and comments */
 
 #line 632 "cool_lexer.cpp"
 
     while ( 1 )     /* loops until end-of-file is reached */
         {
         yy_cp = (yy_c_buf_p);
 
         /* Support of yytext. */
         *yy_cp = (yy_hold_char);
 
         /* yy_bp points to the position in yy_ch_buf of the start of
          * the current run.
          */
         yy_bp = yy_cp;
 
         yy_current_state = (yy_start);
 yy_match:
         do
             {
             register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ;
             if ( yy_accept[yy_current_state] )
                 {
                 (yy_last_accepting_state) = yy_current_state;
                 (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 >= 116 )
                     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_base[yy_current_state] != 136 );
 
 yy_find_action:
         yy_act = yy_accept[yy_current_state];
         if ( yy_act == 0 )
             { /* have to back up */
             yy_cp = (yy_last_accepting_cpos);
             yy_current_state = (yy_last_accepting_state);
             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 = (yy_hold_char);
             yy_cp = (yy_last_accepting_cpos);
             yy_current_state = (yy_last_accepting_state);
             goto yy_find_action;
 
 case 1:
 /* rule 1 can match eol */
 YY_RULE_SETUP
 #line 23 "cool_lexer.ll"
 /* skip */ ;
     YY_BREAK
 case 2:
 YY_RULE_SETUP
 #line 24 "cool_lexer.ll"
 /* line comments, skip */ ;
     YY_BREAK
 case 3:
 YY_RULE_SETUP
 #line 26 "cool_lexer.ll"
 BEGIN(IN_BLOCKCOMMENT);
     YY_BREAK
 
 case 4:
 YY_RULE_SETUP
 #line 28 "cool_lexer.ll"
 BEGIN(INITIAL);
     YY_BREAK
 case YY_STATE_EOF(IN_BLOCKCOMMENT):
 #line 29 "cool_lexer.ll"
 return cool::Parser::Token_EOF;
     YY_BREAK
 case 5:
 /* rule 5 can match eol */
 YY_RULE_SETUP
 #line 30 "cool_lexer.ll"
 /* skip */ ;
     YY_BREAK
 case 6:
 YY_RULE_SETUP
 #line 31 "cool_lexer.ll"
 /* skip */ ;
     YY_BREAK
 
 /* seperators */
 case 7:
 YY_RULE_SETUP
 #line 37 "cool_lexer.ll"
 return cool::Parser::Token_LPAREN;
     YY_BREAK
 case 8:
 YY_RULE_SETUP
 #line 38 "cool_lexer.ll"
 return cool::Parser::Token_RPAREN;
     YY_BREAK
 case 9:
 YY_RULE_SETUP
 #line 39 "cool_lexer.ll"
 return cool::Parser::Token_LBRACE;
     YY_BREAK
 case 10:
 YY_RULE_SETUP
 #line 40 "cool_lexer.ll"
 return cool::Parser::Token_RBRACE;
     YY_BREAK
 case 11:
 YY_RULE_SETUP
 #line 41 "cool_lexer.ll"
 return cool::Parser::Token_SEMICOLON;
     YY_BREAK
 case 12:
 YY_RULE_SETUP
 #line 42 "cool_lexer.ll"
 return cool::Parser::Token_COMMA;
     YY_BREAK
 case 13:
 YY_RULE_SETUP
 #line 43 "cool_lexer.ll"
 return cool::Parser::Token_DOT;
     YY_BREAK
 case 14:
 YY_RULE_SETUP
 #line 44 "cool_lexer.ll"
 return cool::Parser::Token_AT;
     YY_BREAK
 /* operators */
 case 15:
 YY_RULE_SETUP
 #line 49 "cool_lexer.ll"
 return cool::Parser::Token_PLUS;
     YY_BREAK
 case 16:
 YY_RULE_SETUP
 #line 50 "cool_lexer.ll"
 return cool::Parser::Token_MINUS;
     YY_BREAK
 case 17:
 YY_RULE_SETUP
 #line 51 "cool_lexer.ll"
 return cool::Parser::Token_STAR;
     YY_BREAK
 case 18:
 YY_RULE_SETUP
 #line 52 "cool_lexer.ll"
 return cool::Parser::Token_SLASH;
     YY_BREAK
 case 19:
 YY_RULE_SETUP
 #line 53 "cool_lexer.ll"
 return cool::Parser::Token_EQUAL;
     YY_BREAK
 case 20:
 YY_RULE_SETUP
 #line 54 "cool_lexer.ll"
 return cool::Parser::Token_LESS_EQUAL;
     YY_BREAK
 case 21:
 YY_RULE_SETUP
 #line 55 "cool_lexer.ll"
 return cool::Parser::Token_LESS;
     YY_BREAK
 case 22:
 YY_RULE_SETUP
 #line 56 "cool_lexer.ll"
 return cool::Parser::Token_COLON;
     YY_BREAK
 case 23:
 YY_RULE_SETUP
 #line 57 "cool_lexer.ll"
 return cool::Parser::Token_ARROW_LEFT;
     YY_BREAK
 case 24:
 YY_RULE_SETUP
 #line 58 "cool_lexer.ll"
 return cool::Parser::Token_ARROW_RIGHT;
     YY_BREAK
 case 25:
 YY_RULE_SETUP
 #line 59 "cool_lexer.ll"
 return cool::Parser::Token_TILDE;
     YY_BREAK
 case 26:
 YY_RULE_SETUP
 #line 60 "cool_lexer.ll"
 return cool::Parser::Token_NOT;
     YY_BREAK
 case 27:
 YY_RULE_SETUP
 #line 61 "cool_lexer.ll"
 return cool::Parser::Token_ISVOID;
     YY_BREAK
 /* reserved words */
 case 28:
 YY_RULE_SETUP
 #line 66 "cool_lexer.ll"
 return cool::Parser::Token_CASE;
     YY_BREAK
 case 29:
 YY_RULE_SETUP
 #line 67 "cool_lexer.ll"
 return cool::Parser::Token_ESAC;
     YY_BREAK
 case 30:
 YY_RULE_SETUP
 #line 68 "cool_lexer.ll"
 return cool::Parser::Token_CLASS;
     YY_BREAK
 case 31:
 YY_RULE_SETUP
 #line 69 "cool_lexer.ll"
 return cool::Parser::Token_CLASS;
     YY_BREAK
 case 32:
 YY_RULE_SETUP
 #line 70 "cool_lexer.ll"
 return cool::Parser::Token_ELSE;
     YY_BREAK
 case 33:
 YY_RULE_SETUP
 #line 71 "cool_lexer.ll"
 return cool::Parser::Token_FALSE;
     YY_BREAK
 case 34:
 YY_RULE_SETUP
 #line 72 "cool_lexer.ll"
 return cool::Parser::Token_IF;
     YY_BREAK
 case 35:
 YY_RULE_SETUP
 #line 73 "cool_lexer.ll"
 return cool::Parser::Token_IN;
     YY_BREAK
 case 36:
 YY_RULE_SETUP
 #line 74 "cool_lexer.ll"
 return cool::Parser::Token_FI;
     YY_BREAK
 case 37:
 YY_RULE_SETUP
 #line 75 "cool_lexer.ll"
 return cool::Parser::Token_INHERITS;
     YY_BREAK
 case 38:
 YY_RULE_SETUP
 #line 76 "cool_lexer.ll"
 return cool::Parser::Token_LET;
     YY_BREAK
 case 39:
 YY_RULE_SETUP
 #line 77 "cool_lexer.ll"
 return cool::Parser::Token_LOOP;
     YY_BREAK
 case 40:
 YY_RULE_SETUP
 #line 78 "cool_lexer.ll"
 return cool::Parser::Token_NEW;
     YY_BREAK
 case 41:
 YY_RULE_SETUP
 #line 79 "cool_lexer.ll"
 return cool::Parser::Token_OF;
     YY_BREAK
 case 42:
 YY_RULE_SETUP
 #line 80 "cool_lexer.ll"
 return cool::Parser::Token_POOL;
     YY_BREAK
 case 43:
 YY_RULE_SETUP
 #line 81 "cool_lexer.ll"
 return cool::Parser::Token_THEN;
     YY_BREAK
 case 44:
 YY_RULE_SETUP
 #line 82 "cool_lexer.ll"
 return cool::Parser::Token_TRUE;
     YY_BREAK
 case 45:
 YY_RULE_SETUP
 #line 83 "cool_lexer.ll"
 return cool::Parser::Token_WHILE;
     YY_BREAK
 /* literals */
 case 46:
 /* rule 46 can match eol */
 YY_RULE_SETUP
 #line 88 "cool_lexer.ll"
 return cool::Parser::Token_STRING;
     YY_BREAK
 case 47:
 YY_RULE_SETUP
 #line 90 "cool_lexer.ll"
 return cool::Parser::Token_TYPE;
     YY_BREAK
 case 48:
 YY_RULE_SETUP
 #line 91 "cool_lexer.ll"
 return cool::Parser::Token_IDENTIFIER;
     YY_BREAK
 case 49:
 YY_RULE_SETUP
 #line 92 "cool_lexer.ll"
 return cool::Parser::Token_INTEGER;
     YY_BREAK
 /* everything else is not a valid lexeme */
 case 50:
 YY_RULE_SETUP
 #line 97 "cool_lexer.ll"
 return cool::Parser::Token_INVALID;
     YY_BREAK
 case 51:
 YY_RULE_SETUP
 #line 99 "cool_lexer.ll"
 ECHO;
     YY_BREAK
 #line 958 "cool_lexer.cpp"
 case YY_STATE_EOF(INITIAL):
     yyterminate();
 
     case YY_END_OF_BUFFER:
         {
         /* Amount of text matched not including the EOB char. */
         int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
 
         /* Undo the effects of YY_DO_BEFORE_ACTION. */
         *yy_cp = (yy_hold_char);
         YY_RESTORE_YY_MORE_OFFSET
 
         if ( YY_CURRENT_BUFFER_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.
              */
             (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 ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
             { /* This was really a NUL. */
             yy_state_type yy_next_state;
 
             (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
 
             yy_current_state = yy_get_previous_state(  );
 
             /* Okay, we're now positioned to make the NUL
              * transition.  We couldn't have
              * yy_get_previous_state() go ahead and do it
              * for us because it doesn't know how to deal
              * with the possibility of jamming (and we don't
              * want to build jamming into it because then it
              * will run more slowly).
              */
 
             yy_next_state = yy_try_NUL_trans( yy_current_state );
 
             yy_bp = (yytext_ptr) + YY_MORE_ADJ;
 
             if ( yy_next_state )
                 {
                 /* Consume the NUL. */
                 yy_cp = ++(yy_c_buf_p);
                 yy_current_state = yy_next_state;
                 goto yy_match;
                 }
 
             else
                 {
                 yy_cp = (yy_c_buf_p);
                 goto yy_find_action;
                 }
             }
 
         else switch ( yy_get_next_buffer(  ) )
             {
             case EOB_ACT_END_OF_FILE:
                 {
                 (yy_did_buffer_switch_on_eof) = 0;
 
                 if ( yywrap(  ) )
                     {
                     /* Note: because we've taken care in
                      * yy_get_next_buffer() to have set up
                      * yytext, we can now set up
                      * yy_c_buf_p so that if some total
                      * hoser (like flex itself) wants to
                      * call the scanner after we return the
                      * YY_NULL, it'll still work - another
                      * YY_NULL will get returned.
                      */
                     (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
 
                     yy_act = YY_STATE_EOF(YY_START);
                     goto do_action;
                     }
 
                 else
                     {
                     if ( ! (yy_did_buffer_switch_on_eof) )
                         YY_NEW_FILE;
                     }
                 break;
                 }
 
             case EOB_ACT_CONTINUE_SCAN:
                 (yy_c_buf_p) =
                     (yytext_ptr) + yy_amount_of_matched_text;
 
                 yy_current_state = yy_get_previous_state(  );
 
                 yy_cp = (yy_c_buf_p);
                 yy_bp = (yytext_ptr) + YY_MORE_ADJ;
                 goto yy_match;
 
             case EOB_ACT_LAST_MATCH:
                 (yy_c_buf_p) =
                 &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
 
                 yy_current_state = yy_get_previous_state(  );
 
                 yy_cp = (yy_c_buf_p);
                 yy_bp = (yytext_ptr) + YY_MORE_ADJ;
                 goto yy_find_action;
             }
         break;
         }
 
     default:
         YY_FATAL_ERROR(
             "fatal flex scanner internal error--no action found" );
     } /* end of action switch */
         } /* end of scanning one token */
     } /* end of user's declarations */
 } /* end of yylex */
 
 /* The contents of this function are C++ specific, so the () macro is not used.
  */
 yyFlexLexer::yyFlexLexer( std::istream* arg_yyin, std::ostream* arg_yyout )
 {
     yyin = arg_yyin;
     yyout = arg_yyout;
     yy_c_buf_p = 0;
     yy_init = 0;
     yy_start = 0;
     yy_flex_debug = 0;
     yylineno = 1;   // this will only get updated if %option yylineno
 
     yy_did_buffer_switch_on_eof = 0;
 
     yy_looking_for_trail_begin = 0;
     yy_more_flag = 0;
     yy_more_len = 0;
     yy_more_offset = yy_prev_more_offset = 0;
 
     yy_start_stack_ptr = yy_start_stack_depth = 0;
     yy_start_stack = NULL;
 
     yy_buffer_stack = 0;
     yy_buffer_stack_top = 0;
     yy_buffer_stack_max = 0;
 
     yy_state_buf = 0;
 
 }
 
 /* The contents of this function are C++ specific, so the () macro is not used.
  */
 yyFlexLexer::~yyFlexLexer()
 {
     delete [] yy_state_buf;
     yyfree(yy_start_stack  );
     yy_delete_buffer( YY_CURRENT_BUFFER );
     yyfree(yy_buffer_stack  );
 }
 
 /* The contents of this function are C++ specific, so the () macro is not used.
  */
 void yyFlexLexer::switch_streams( std::istream* new_in, std::ostream* new_out )
 {
     if ( new_in )
         {
         yy_delete_buffer( YY_CURRENT_BUFFER );
         yy_switch_to_buffer( yy_create_buffer( new_in, YY_BUF_SIZE  ) );
         }
 
     if ( new_out )
         yyout = new_out;
 }
 
 #ifdef YY_INTERACTIVE
 int yyFlexLexer::LexerInput( char* buf, int /* max_size */ )
 #else
 int yyFlexLexer::LexerInput( char* buf, int max_size )
 #endif
 {
     if ( yyin->eof() || yyin->fail() )
         return 0;
 
 #ifdef YY_INTERACTIVE
     yyin->get( buf[0] );
 
     if ( yyin->eof() )
         return 0;
 
     if ( yyin->bad() )
         return -1;
 
     return 1;
 
 #else
     (void) yyin->read( buf, max_size );
 
     if ( yyin->bad() )
         return -1;
     else
         return yyin->gcount();
 #endif
 }
 
 void yyFlexLexer::LexerOutput( const char* buf, int size )
 {
     (void) yyout->write( buf, size );
 }
 
 /* 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
  */
 int yyFlexLexer::yy_get_next_buffer()
 {
         register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
     register char *source = (yytext_ptr);
     register int number_to_move, i;
     int ret_val;
 
     if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(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 ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
             {
             /* We matched a single character, the EOB, so
              * treat this as a final EOF.
              */
             return EOB_ACT_END_OF_FILE;
             }
 
         else
             {
             /* We matched some text prior to the EOB, first
              * process it.
              */
             return EOB_ACT_LAST_MATCH;
             }
         }
 
     /* Try to read more data. */
 
     /* First move last chars to start of buffer. */
     number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
 
     for ( i = 0; i < number_to_move; ++i )
         *(dest++) = *(source++);
 
     if ( YY_CURRENT_BUFFER_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 = (yy_n_chars) = 0;
 
     else
         {
             yy_size_t 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) ((yy_c_buf_p) - b->yy_ch_buf);
 
             if ( b->yy_is_our_buffer )
                 {
                 yy_size_t 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,b->yy_buf_size + 2  );
                 }
             else
                 /* Can't grow it, we don't own it. */
                 b->yy_ch_buf = 0;
 
             if ( ! b->yy_ch_buf )
                 YY_FATAL_ERROR(
                 "fatal error - scanner input buffer overflow" );
 
             (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
 
             num_to_read = YY_CURRENT_BUFFER_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]),
             (yy_n_chars), num_to_read );
 
         YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
         }
 
     if ( (yy_n_chars) == 0 )
         {
         if ( number_to_move == YY_MORE_ADJ )
             {
             ret_val = EOB_ACT_END_OF_FILE;
             yyrestart( yyin  );
             }
 
         else
             {
             ret_val = EOB_ACT_LAST_MATCH;
             YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
                 YY_BUFFER_EOF_PENDING;
             }
         }
 
     else
         ret_val = EOB_ACT_CONTINUE_SCAN;
 
     if ((yy_size_t) ((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 = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
         YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size  );
         if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
             YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
     }
 
     (yy_n_chars) += number_to_move;
     YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
     YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
 
     (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 */
 
     yy_state_type yyFlexLexer::yy_get_previous_state()
 {
     register yy_state_type yy_current_state;
     register char *yy_cp;
     
     yy_current_state = (yy_start);
 
     for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
         {
         register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
         if ( yy_accept[yy_current_state] )
             {
             (yy_last_accepting_state) = yy_current_state;
             (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 >= 116 )
                 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 );
  */
     yy_state_type yyFlexLexer::yy_try_NUL_trans( yy_state_type yy_current_state )
 {
     register int yy_is_jam;
         register char *yy_cp = (yy_c_buf_p);
 
     register YY_CHAR yy_c = 1;
     if ( yy_accept[yy_current_state] )
         {
         (yy_last_accepting_state) = yy_current_state;
         (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 >= 116 )
             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 == 115);
 
         return yy_is_jam ? 0 : yy_current_state;
 }
 
     void yyFlexLexer::yyunput( int c, register char* yy_bp)
 {
     register char *yy_cp;
     
     yy_cp = (yy_c_buf_p);
 
     /* undo effects of setting up yytext */
     *yy_cp = (yy_hold_char);
 
     if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
         { /* need to shift things up to make room */
         /* +2 for EOB chars. */
         register yy_size_t number_to_move = (yy_n_chars) + 2;
         register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
                     YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
         register char *source =
                 &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
 
         while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
             *--dest = *--source;
 
         yy_cp += (int) (dest - source);
         yy_bp += (int) (dest - source);
         YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
             (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
 
         if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
             YY_FATAL_ERROR( "flex scanner push-back overflow" );
         }
 
     *--yy_cp = (char) c;
 
     (yytext_ptr) = yy_bp;
     (yy_hold_char) = *yy_cp;
     (yy_c_buf_p) = yy_cp;
 }
 
     int yyFlexLexer::yyinput()
 {
     int c;
     
     *(yy_c_buf_p) = (yy_hold_char);
 
     if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
         {
         /* yy_c_buf_p now points to the character we want to return.
          * If this occurs *before* the EOB characters, then it's a
          * valid NUL; if not, then we've hit the end of the buffer.
          */
         if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
             /* This was really a NUL. */
             *(yy_c_buf_p) = '\0';
 
         else
             { /* need more input */
             yy_size_t offset = (yy_c_buf_p) - (yytext_ptr);
             ++(yy_c_buf_p);
 
             switch ( yy_get_next_buffer(  ) )
                 {
                 case EOB_ACT_LAST_MATCH:
                     /* This happens because yy_g_n_b()
                      * sees that we've accumulated a
                      * token and flags that we need to
                      * try matching the token before
                      * proceeding.  But for input(),
                      * there's no matching to consider.
                      * So convert the EOB_ACT_LAST_MATCH
                      * to EOB_ACT_END_OF_FILE.
                      */
 
                     /* Reset buffer status. */
                     yyrestart( yyin );
 
                     /*FALLTHROUGH*/
 
                 case EOB_ACT_END_OF_FILE:
                     {
                     if ( yywrap(  ) )
                         return EOF;
 
                     if ( ! (yy_did_buffer_switch_on_eof) )
                         YY_NEW_FILE;
 #ifdef __cplusplus
                     return yyinput();
 #else
                     return input();
 #endif
                     }
 
                 case EOB_ACT_CONTINUE_SCAN:
                     (yy_c_buf_p) = (yytext_ptr) + offset;
                     break;
                 }
             }
         }
 
     c = *(unsigned char *) (yy_c_buf_p);    /* cast for 8-bit char's */
     *(yy_c_buf_p) = '\0';   /* preserve yytext */
     (yy_hold_char) = *++(yy_c_buf_p);
 
     return c;
 }
 
 /** Immediately switch to a different input stream.
  * @param input_file A readable stream.
  * 
  * @note This function does not reset the start condition to @c INITIAL .
  */
     void yyFlexLexer::yyrestart( std::istream* input_file )
 {
     
     if ( ! YY_CURRENT_BUFFER ){
         yyensure_buffer_stack ();
         YY_CURRENT_BUFFER_LVALUE =
             yy_create_buffer( yyin, YY_BUF_SIZE );
     }
 
     yy_init_buffer( YY_CURRENT_BUFFER, input_file );
     yy_load_buffer_state(  );
 }
 
 /** Switch to a different input buffer.
  * @param new_buffer The new input buffer.
  * 
  */
     void yyFlexLexer::yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
 {
     
     /* TODO. We should be able to replace this entire function body
      * with
      *      yypop_buffer_state();
      *      yypush_buffer_state(new_buffer);
      */
     yyensure_buffer_stack ();
     if ( YY_CURRENT_BUFFER == new_buffer )
         return;
 
     if ( YY_CURRENT_BUFFER )
         {
         /* Flush out information for old buffer. */
         *(yy_c_buf_p) = (yy_hold_char);
         YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
         YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
         }
 
     YY_CURRENT_BUFFER_LVALUE = new_buffer;
     yy_load_buffer_state(  );
 
     /* We don't actually know whether we did this switch during
      * EOF (yywrap()) processing, but the only time this flag
      * is looked at is after yywrap() is called, so it's safe
      * to go ahead and always set it.
      */
     (yy_did_buffer_switch_on_eof) = 1;
 }
 
     void yyFlexLexer::yy_load_buffer_state()
 {
         (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
     (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
     yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
     (yy_hold_char) = *(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.
  * 
  * @return the allocated buffer state.
  */
     YY_BUFFER_STATE yyFlexLexer::yy_create_buffer( std::istream* file, int size )
 {
     YY_BUFFER_STATE b;
     
     b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
     if ( ! b )
         YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
 
     b->yy_buf_size = size;
 
     /* yy_ch_buf has to be 2 characters longer than the size given because
      * we need to put in 2 end-of-buffer characters.
      */
     b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2  );
     if ( ! b->yy_ch_buf )
         YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
 
     b->yy_is_our_buffer = 1;
 
     yy_init_buffer( b, file );
 
     return b;
 }
 
 /** Destroy the buffer.
  * @param b a buffer created with yy_create_buffer()
  * 
  */
     void yyFlexLexer::yy_delete_buffer( YY_BUFFER_STATE b )
 {
     
     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  );
 
     yyfree((void *) b  );
 }
 
 /* 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.
  */
     void yyFlexLexer::yy_init_buffer( YY_BUFFER_STATE b, std::istream* file )
 
 {
     int oerrno = errno;
     
     yy_flush_buffer( b );
 
     b->yy_input_file = file;
     b->yy_fill_buffer = 1;
 
     /* If b is the current buffer, then yy_init_buffer was _probably_
      * called from yyrestart() or through yy_get_next_buffer.
      * In that case, we don't want to reset the lineno or column.
      */
     if (b != YY_CURRENT_BUFFER){
         b->yy_bs_lineno = 1;
         b->yy_bs_column = 0;
     }
 
     b->yy_is_interactive = 0;
     errno = oerrno;
 }
 
 /** Discard all buffered characters. On the next scan, YY_INPUT will be called.
  * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
  * 
  */
     void yyFlexLexer::yy_flush_buffer( YY_BUFFER_STATE b )
 {
         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(  );
 }
 
 /** 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.
  *  
  */
 void yyFlexLexer::yypush_buffer_state (YY_BUFFER_STATE new_buffer)
 {
         if (new_buffer == NULL)
         return;
 
     yyensure_buffer_stack();
 
     /* This block is copied from yy_switch_to_buffer. */
     if ( YY_CURRENT_BUFFER )
         {
         /* Flush out information for old buffer. */
         *(yy_c_buf_p) = (yy_hold_char);
         YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
         YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
         }
 
     /* Only push if top exists. Otherwise, replace top. */
     if (YY_CURRENT_BUFFER)
         (yy_buffer_stack_top)++;
     YY_CURRENT_BUFFER_LVALUE = new_buffer;
 
     /* copied from yy_switch_to_buffer. */
     yy_load_buffer_state(  );
     (yy_did_buffer_switch_on_eof) = 1;
 }
 
 /** Removes and deletes the top of the stack, if present.
  *  The next element becomes the new top.
  *  
  */
 void yyFlexLexer::yypop_buffer_state (void)
 {
         if (!YY_CURRENT_BUFFER)
         return;
 
     yy_delete_buffer(YY_CURRENT_BUFFER );
     YY_CURRENT_BUFFER_LVALUE = NULL;
     if ((yy_buffer_stack_top) > 0)
         --(yy_buffer_stack_top);
 
     if (YY_CURRENT_BUFFER) {
         yy_load_buffer_state(  );
         (yy_did_buffer_switch_on_eof) = 1;
     }
 }
 
 /* Allocates the stack if it does not exist.
  *  Guarantees space for at least one push.
  */
 void yyFlexLexer::yyensure_buffer_stack(void)
 {
     yy_size_t num_to_alloc;
     
     if (!(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;
         (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
                                 (num_to_alloc * sizeof(struct yy_buffer_state*)
                                 );
         if ( ! (yy_buffer_stack) )
             YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
                                   
         memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
                 
         (yy_buffer_stack_max) = num_to_alloc;
         (yy_buffer_stack_top) = 0;
         return;
     }
 
     if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
 
         /* Increase the buffer to prepare for a possible push. */
         int grow_size = 8 /* arbitrary grow size */;
 
         num_to_alloc = (yy_buffer_stack_max) + grow_size;
         (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc
                                 ((yy_buffer_stack),
                                 num_to_alloc * sizeof(struct yy_buffer_state*)
                                 );
         if ( ! (yy_buffer_stack) )
             YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
 
         /* zero only the new slots.*/
         memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
         (yy_buffer_stack_max) = num_to_alloc;
     }
 }
 
     void yyFlexLexer::yy_push_state( int new_state )
 {
         if ( (yy_start_stack_ptr) >= (yy_start_stack_depth) )
         {
         yy_size_t new_size;
 
         (yy_start_stack_depth) += YY_START_STACK_INCR;
         new_size = (yy_start_stack_depth) * sizeof( int );
 
         if ( ! (yy_start_stack) )
             (yy_start_stack) = (int *) yyalloc(new_size  );
 
         else
             (yy_start_stack) = (int *) yyrealloc((void *) (yy_start_stack),new_size  );
 
         if ( ! (yy_start_stack) )
             YY_FATAL_ERROR( "out of memory expanding start-condition stack" );
         }
 
     (yy_start_stack)[(yy_start_stack_ptr)++] = YY_START;
 
     BEGIN(new_state);
 }
 
     void yyFlexLexer::yy_pop_state()
 {
         if ( --(yy_start_stack_ptr) < 0 )
         YY_FATAL_ERROR( "start-condition stack underflow" );
 
     BEGIN((yy_start_stack)[(yy_start_stack_ptr)]);
 }
 
     int yyFlexLexer::yy_top_state()
 {
         return (yy_start_stack)[(yy_start_stack_ptr) - 1];
 }
 
 #ifndef YY_EXIT_FAILURE
 #define YY_EXIT_FAILURE 2
 #endif
 
 void yyFlexLexer::LexerError( yyconst char msg[] )
 {
         std::cerr << msg << std::endl;
     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] = (yy_hold_char); \
         (yy_c_buf_p) = yytext + yyless_macro_arg; \
         (yy_hold_char) = *(yy_c_buf_p); \
         *(yy_c_buf_p) = '\0'; \
         yyleng = yyless_macro_arg; \
         } \
     while ( 0 )
 
 /* Accessor  methods (get/set functions) to struct members. */
 
 /*
  * Internal utility routines.
  */
 
 #ifndef yytext_ptr
 static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
 {
     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 )
 {
     register int n;
     for ( n = 0; s[n]; ++n )
         ;
 
     return n;
 }
 #endif
 
 void *yyalloc (yy_size_t  size )
 {
     return (void *) malloc( size );
 }
 
 void *yyrealloc  (void * ptr, yy_size_t  size )
 {
     /* The cast to (char *) in the following accommodates both
      * implementations that use char* generic pointers, and those
      * that use void* generic pointers.  It works with the latter
      * because both ANSI C and C++ allow castless assignment from
      * any pointer type to void*, and deal with argument conversions
      * as though doing an assignment.
      */
     return (void *) realloc( (char *) ptr, size );
 }
 
 void yyfree (void * ptr )
 {
     free( (char *) ptr );   /* see yyrealloc() for (char *) cast */
 }
 
 #define YYTABLES_NAME "yytables"
 
 #line 99 "cool_lexer.ll"
 
 
 
 namespace cool
 {
 
 Lexer::Lexer( Parser *parser, char *contents )
 {
     restart( parser, contents );
 }
 
 void Lexer::restart( Parser *parser, char *contents )
 {
     m_parser = parser;
     m_locationTable = parser->tokenStream->locationTable();
     m_contents = contents;
     m_tokenBegin = m_tokenEnd = 0;
     m_currentOffset = 0;
 
     // check for and ignore the UTF-8 byte order mark
     unsigned char *ucontents = (unsigned char *) m_contents;
     if ( ucontents[0] == 0xEF && ucontents[1] == 0xBB && ucontents[2] == 0xBF )
     {
         m_tokenBegin = m_tokenEnd = 3;
         m_currentOffset = 3;
     }
 
     yyrestart(NULL);
     BEGIN(INITIAL); // is not set automatically by yyrestart()
 }
 
 // reads a character, and returns 1 as the number of characters read
 // (or 0 when the end of the string is reached)
 int Lexer::LexerInput( char *buf, int /*max_size*/ )
 {
     int c = m_contents[ m_currentOffset++ ];
 
     switch(c)
     {
     case '\r':
         c = '\n'; // only have one single line break character: '\n'
         if ( m_contents[m_currentOffset + 1] == '\n' )
         {
             m_currentOffset++;
             m_tokenEnd++;
         }
 
         // fall through
     case '\n':
         m_locationTable->newline( m_currentOffset );
         break;
 
     default:
         break;
     }
 
     return (c == 0) ? 0 : (buf[0] = c, 1);
 }
 
 } // end of namespace cool