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yylex.cc

#line 2 "yylex.cc"
/* A lexical scanner generated by flex */

/* Scanner skeleton version:
 * $Header$
 */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5


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


#ifdef __cplusplus

#include <stdlib.h>
#include <fstream>
using std::istream;
using std::ostream;
#ifndef _WIN32
#include <unistd.h>
#endif

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

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

#else   /* ! __cplusplus */

#if __STDC__

#define YY_USE_PROTOS
#define YY_USE_CONST

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

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

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


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

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

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

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

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

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

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

#define YY_END_OF_BUFFER_CHAR 0

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

typedef struct yy_buffer_state *YY_BUFFER_STATE;

extern int yyleng;

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

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

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

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

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

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


struct yy_buffer_state
        {
        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.
         */
        int yy_n_chars;

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

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

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

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

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


/* We provide macros for accessing buffer states in case in the
 * future we want to put the buffer states in a more general
 * "scanner state".
 */
#define YY_CURRENT_BUFFER yy_current_buffer



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

#define yy_new_buffer yy_create_buffer

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

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

#define YY_AT_BOL() (yy_current_buffer->yy_at_bol)


#define yywrap() 1
#define YY_SKIP_YYWRAP

#define FLEX_DEBUG
typedef unsigned char YY_CHAR;
#define yytext_ptr yytext
#define YY_INTERACTIVE

#define FLEX_DEBUG

#include <FlexLexer.h>
int yyFlexLexer::yylex()
        {
        LexerError( "yyFlexLexer::yylex invoked but %option yyclass used" );
        return 0;
        }

#define YY_DECL int Scanner::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 = (int) (yy_cp - yy_bp); \
        yy_hold_char = *yy_cp; \
        *yy_cp = '\0'; \
        yy_c_buf_p = yy_cp;

#define YY_NUM_RULES 8
#define YY_END_OF_BUFFER 9
static yyconst short int yy_accept[21] =
    {   0,
        0,    0,    9,    7,    1,    3,    2,    7,    7,    3,
        4,    2,    0,    0,    4,    0,    0,    5,    6,    0
    } ;

static yyconst int yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    4,    1,    5,    5,    5,
        5,    5,    5,    5,    5,    5,    5,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        6,    1,    1,    1,    7,    1,    1,    1,    1,    1,
        1,    1,    8,    1,    1,    9,   10,    1,    1,   11,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    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 int yy_meta[12] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1
    } ;

static yyconst short int yy_base[21] =
    {   0,
        0,    0,   24,   25,   25,   18,    8,   11,   11,   15,
       14,    0,   11,   10,   11,    6,    5,   25,   25,   25
    } ;

static yyconst short int yy_def[21] =
    {   0,
       20,    1,   20,   20,   20,   20,   20,   20,   20,   20,
       20,    7,   20,   20,   20,   20,   20,   20,   20,    0
    } ;

static yyconst short int yy_nxt[37] =
    {   0,
        4,    5,    4,    6,    7,    8,    4,    9,    4,    4,
        4,   11,   12,   19,   18,   15,   17,   16,   15,   10,
       14,   13,   10,   20,    3,   20,   20,   20,   20,   20,
       20,   20,   20,   20,   20,   20
    } ;

static yyconst short int yy_chk[37] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    7,    7,   17,   16,   15,   14,   13,   11,   10,
        9,    8,    6,    3,   20,   20,   20,   20,   20,   20,
       20,   20,   20,   20,   20,   20
    } ;

static yyconst short int yy_rule_linenum[8] =
    {   0,
       13,   14,   16,   17,   19,   20,   22
    } ;

/* 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 "lexer"
#define INITIAL 0
#line 2 "lexer"
    #define _SKIP_YYFLEXLEXER_
    #include "scanner.ih"

    #include "../parser/parser.h"
#line 360 "yylex.cc"

/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap YY_PROTO(( void ));
#else
extern int yywrap YY_PROTO(( void ));
#endif
#endif


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

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen YY_PROTO(( yyconst char * ));
#endif

#ifndef YY_NO_INPUT
#endif

#if YY_STACK_USED
static int yy_start_stack_ptr = 0;
static int yy_start_stack_depth = 0;
static int *yy_start_stack = 0;
#ifndef YY_NO_PUSH_STATE
static void yy_push_state YY_PROTO(( int new_state ));
#endif
#ifndef YY_NO_POP_STATE
static void yy_pop_state YY_PROTO(( void ));
#endif
#ifndef YY_NO_TOP_STATE
static int yy_top_state YY_PROTO(( void ));
#endif

#else
#define YY_NO_PUSH_STATE 1
#define YY_NO_POP_STATE 1
#define YY_NO_TOP_STATE 1
#endif

#ifdef YY_MALLOC_DECL
YY_MALLOC_DECL
#else
#if __STDC__
#ifndef __cplusplus
#include <stdlib.h>
#endif
#else
/* Just try to get by without declaring the routines.  This will fail
 * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
 * or sizeof(void*) != sizeof(int).
 */
#endif
#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* Copy whatever the last rule matched to the standard output. */

#ifndef ECHO
#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

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL int yyFlexLexer::yylex()
#endif

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

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

#define YY_RULE_SETUP \
        YY_USER_ACTION

YY_DECL
        {
        register yy_state_type yy_current_state;
        register char *yy_cp, *yy_bp;
        register int yy_act;

#line 11 "lexer"


#line 490 "yylex.cc"

        if ( yy_init )
                {
                yy_init = 0;

#ifdef YY_USER_INIT
                YY_USER_INIT;
#endif

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

                if ( ! yyin )
                        yyin = &cin;

                if ( ! yyout )
                        yyout = &cout;

                if ( ! yy_current_buffer )
                        yy_current_buffer =
                                yy_create_buffer( yyin, YY_BUF_SIZE );

                yy_load_buffer_state();
                }

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

                /* Support of yytext. */
                *yy_cp = yy_hold_char;

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

                yy_current_state = yy_start;
yy_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 >= 21 )
                                        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] != 25 );

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. */

                if ( yy_flex_debug )
                        {
                        if ( yy_act == 0 )
                                cerr << "--scanner backing up\n";
                        else if ( yy_act < 8 )
                                cerr << "--accepting rule at line " << yy_rule_linenum[yy_act] <<
                                         "(\"" << yytext << "\")\n";
                        else if ( yy_act == 8 )
                                cerr << "--accepting default rule (\"" << yytext << "\")\n";
                        else if ( yy_act == 9 )
                                cerr << "--(end of buffer or a NUL)\n";
                        else
                                cerr << "--EOF (start condition " << YY_START << ")\n";
                        }

                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:
YY_RULE_SETUP
#line 13 "lexer"
;
        YY_BREAK
case 2:
YY_RULE_SETUP
#line 14 "lexer"
return Parser::INT;
        YY_BREAK
case 3:
#line 17 "lexer"
case 4:
YY_RULE_SETUP
#line 17 "lexer"
return Parser::DOUBLE;
        YY_BREAK
case 5:
#line 20 "lexer"
case 6:
YY_RULE_SETUP
#line 20 "lexer"
return Parser::DONE;
        YY_BREAK
case 7:
YY_RULE_SETUP
#line 22 "lexer"
return *yytext;
        YY_BREAK
case 8:
YY_RULE_SETUP
#line 24 "lexer"
ECHO;
        YY_BREAK
#line 621 "yylex.cc"
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->yy_buffer_status == YY_BUFFER_NEW )
                        {
                        /* We're scanning a new file or input source.  It's
                         * possible that this happened because the user
                         * just pointed yyin at a new source and called
                         * yylex().  If so, then we have to assure
                         * consistency between yy_current_buffer and our
                         * globals.  Here is the right place to do so, because
                         * this is the first action (other than possibly a
                         * back-up) that will match for the new input source.
                         */
                        yy_n_chars = yy_current_buffer->yy_n_chars;
                        yy_current_buffer->yy_input_file = yyin;
                        yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL;
                        }

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

                        yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;

                        yy_current_state = yy_get_previous_state();

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

                        yy_next_state = yy_try_NUL_trans( yy_current_state );

                        yy_bp = yytext_ptr + YY_MORE_ADJ;

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

                        else
                                {
                                yy_cp = yy_c_buf_p;
                                goto yy_find_action;
                                }
                        }

                else switch ( yy_get_next_buffer() )
                        {
                        case EOB_ACT_END_OF_FILE:
                                {
                                yy_did_buffer_switch_on_eof = 0;

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

                                        yy_act = YY_STATE_EOF(YY_START);
                                        goto do_action;
                                        }

                                else
                                        {
                                        if ( ! yy_did_buffer_switch_on_eof )
                                                YY_NEW_FILE;
                                        }
                                break;
                                }

                        case EOB_ACT_CONTINUE_SCAN:
                                yy_c_buf_p =
                                        yytext_ptr + yy_amount_of_matched_text;

                                yy_current_state = yy_get_previous_state();

                                yy_cp = yy_c_buf_p;
                                yy_bp = yytext_ptr + YY_MORE_ADJ;
                                goto yy_match;

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

                                yy_current_state = yy_get_previous_state();

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

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

yyFlexLexer::yyFlexLexer( istream* arg_yyin, ostream* arg_yyout )
        {
        yyin = arg_yyin;
        yyout = arg_yyout;
        yy_c_buf_p = 0;
        yy_init = 1;
        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 = 0;

        yy_current_buffer = 0;

#ifdef YY_USES_REJECT
        yy_state_buf = new yy_state_type[YY_BUF_SIZE + 2];
#else
        yy_state_buf = 0;
#endif
        }

yyFlexLexer::~yyFlexLexer()
        {
        delete yy_state_buf;
        yy_delete_buffer( yy_current_buffer );
        }

void yyFlexLexer::switch_streams( istream* new_in, 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->yy_ch_buf;
        register char *source = yytext_ptr;
        register int number_to_move, i;
        int ret_val;

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

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

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

        /* Try to read more data. */

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

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

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

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

                while ( num_to_read <= 0 )
                        { /* Not enough room in the buffer - grow it. */
#ifdef YY_USES_REJECT
                        YY_FATAL_ERROR(
"input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
#else

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

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

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

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

                                b->yy_ch_buf = (char *)
                                        /* Include room in for 2 EOB chars. */
                                        yy_flex_realloc( (void *) b->yy_ch_buf,
                                                         b->yy_buf_size + 2 );
                                }
                        else
                                /* Can't grow it, we don't own it. */
                                b->yy_ch_buf = 0;

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

                        yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset];

                        num_to_read = yy_current_buffer->yy_buf_size -
                                                number_to_move - 1;
#endif
                        }

                if ( num_to_read > YY_READ_BUF_SIZE )
                        num_to_read = YY_READ_BUF_SIZE;

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

                yy_current_buffer->yy_n_chars = yy_n_chars;
                }

        if ( yy_n_chars == 0 )
                {
                if ( number_to_move == YY_MORE_ADJ )
                        {
                        ret_val = EOB_ACT_END_OF_FILE;
                        yyrestart( yyin );
                        }

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

        else
                ret_val = EOB_ACT_CONTINUE_SCAN;

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

        yytext_ptr = &yy_current_buffer->yy_ch_buf[0];

        return ret_val;
        }


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

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 >= 21 )
                                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 >= 21 )
                        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 == 20);

        return yy_is_jam ? 0 : yy_current_state;
        }


void yyFlexLexer::yyunput( int c, register char* yy_bp )
        {
        register char *yy_cp = yy_c_buf_p;

        /* undo effects of setting up yytext */
        *yy_cp = yy_hold_char;

        if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
                { /* need to shift things up to make room */
                /* +2 for EOB chars. */
                register int number_to_move = yy_n_chars + 2;
                register char *dest = &yy_current_buffer->yy_ch_buf[
                                        yy_current_buffer->yy_buf_size + 2];
                register char *source =
                                &yy_current_buffer->yy_ch_buf[number_to_move];

                while ( source > yy_current_buffer->yy_ch_buf )
                        *--dest = *--source;

                yy_cp += (int) (dest - source);
                yy_bp += (int) (dest - source);
                yy_current_buffer->yy_n_chars =
                        yy_n_chars = yy_current_buffer->yy_buf_size;

                if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
                        YY_FATAL_ERROR( "flex scanner push-back overflow" );
                }

        *--yy_cp = (char) c;


        yytext_ptr = yy_bp;
        yy_hold_char = *yy_cp;
        yy_c_buf_p = yy_cp;
        }


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->yy_ch_buf[yy_n_chars] )
                        /* This was really a NUL. */
                        *yy_c_buf_p = '\0';

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

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

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

                                        /* fall through */

                                case EOB_ACT_END_OF_FILE:
                                        {
                                        if ( yywrap() )
                                                return EOF;

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

                                case EOB_ACT_CONTINUE_SCAN:
                                        yy_c_buf_p = yytext_ptr + offset;
                                        break;
                                }
                        }
                }

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


        return c;
        }


void yyFlexLexer::yyrestart( istream* input_file )
        {
        if ( ! yy_current_buffer )
                yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );

        yy_init_buffer( yy_current_buffer, input_file );
        yy_load_buffer_state();
        }


void yyFlexLexer::yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
        {
        if ( yy_current_buffer == new_buffer )
                return;

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

        yy_current_buffer = new_buffer;
        yy_load_buffer_state();

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


void yyFlexLexer::yy_load_buffer_state()
        {
        yy_n_chars = yy_current_buffer->yy_n_chars;
        yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos;
        yyin = yy_current_buffer->yy_input_file;
        yy_hold_char = *yy_c_buf_p;
        }


YY_BUFFER_STATE yyFlexLexer::yy_create_buffer( istream* file, int size )
        {
        YY_BUFFER_STATE b;

        b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
        if ( ! b )
                YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );

        b->yy_buf_size = size;

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

        b->yy_is_our_buffer = 1;

        yy_init_buffer( b, file );

        return b;
        }


void yyFlexLexer::yy_delete_buffer( YY_BUFFER_STATE b )
        {
        if ( ! b )
                return;

        if ( b == yy_current_buffer )
                yy_current_buffer = (YY_BUFFER_STATE) 0;

        if ( b->yy_is_our_buffer )
                yy_flex_free( (void *) b->yy_ch_buf );

        yy_flex_free( (void *) b );
        }


void yyFlexLexer::yy_init_buffer( YY_BUFFER_STATE b, istream* file )

        {
        yy_flush_buffer( b );

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

        b->yy_is_interactive = 0;
        }


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();
        }


#ifndef YY_NO_SCAN_BUFFER
#endif


#ifndef YY_NO_SCAN_STRING
#endif


#ifndef YY_NO_SCAN_BYTES
#endif


#ifndef YY_NO_PUSH_STATE
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 *) yy_flex_alloc( new_size );

                else
                        yy_start_stack = (int *) yy_flex_realloc(
                                        (void *) yy_start_stack, new_size );

                if ( ! yy_start_stack )
                        YY_FATAL_ERROR(
                        "out of memory expanding start-condition stack" );
                }

        yy_start_stack[yy_start_stack_ptr++] = YY_START;

        BEGIN(new_state);
        }
#endif


#ifndef YY_NO_POP_STATE
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]);
        }
#endif


#ifndef YY_NO_TOP_STATE
int yyFlexLexer::yy_top_state()
        {
        return yy_start_stack[yy_start_stack_ptr - 1];
        }
#endif

#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif


void yyFlexLexer::LexerError( yyconst char msg[] )
        {
        cerr << msg << '\n';
        exit( YY_EXIT_FAILURE );
        }


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

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


/* Internal utility routines. */

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

#ifdef YY_NEED_STRLEN
#ifdef YY_USE_PROTOS
static int yy_flex_strlen( yyconst char *s )
#else
static int yy_flex_strlen( s )
yyconst char *s;
#endif
        {
        register int n;
        for ( n = 0; s[n]; ++n )
                ;

        return n;
        }
#endif


#ifdef YY_USE_PROTOS
static void *yy_flex_alloc( yy_size_t size )
#else
static void *yy_flex_alloc( size )
yy_size_t size;
#endif
        {
        return (void *) malloc( size );
        }

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

#ifdef YY_USE_PROTOS
static void yy_flex_free( void *ptr )
#else
static void yy_flex_free( ptr )
void *ptr;
#endif
        {
        free( ptr );
        }

#if YY_MAIN
int main()
        {
        yylex();
        return 0;
        }
#endif
#line 24 "lexer"

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