word_count_functor_flex.cpp

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/* 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 16 "c:\\CVS\\boost\\libs\\spirit\\example\\lex\\word_count_functor.flex"

#line 544 "c:\\CVS\\boost\\libs\\spirit\\example\\lex\\word_count_functor_flex.cpp"

    if ( yy_init )
        {
        yy_init = 0;

#ifdef YY_USER_INIT
        YY_USER_INIT;
#endif

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

        if ( ! yyin )
            yyin = stdin;

        if ( ! yyout )
            yyout = stdout;

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

        yy_load_buffer_state();
        }

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

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

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

        yy_current_state = yy_start;
yy_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 >= 9 )
                    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] != 6 );

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:
YY_RULE_SETUP
#line 17 "c:\\CVS\\boost\\libs\\spirit\\example\\lex\\word_count_functor.flex"
{ return ID_WORD; }
    YY_BREAK
case 2:
YY_RULE_SETUP
#line 18 "c:\\CVS\\boost\\libs\\spirit\\example\\lex\\word_count_functor.flex"
{ return ID_EOL; }
    YY_BREAK
case 3:
YY_RULE_SETUP
#line 19 "c:\\CVS\\boost\\libs\\spirit\\example\\lex\\word_count_functor.flex"
{ return ID_CHAR; }
    YY_BREAK
case 4:
YY_RULE_SETUP
#line 20 "c:\\CVS\\boost\\libs\\spirit\\example\\lex\\word_count_functor.flex"
ECHO;
    YY_BREAK
#line 647 "c:\\CVS\\boost\\libs\\spirit\\example\\lex\\word_count_functor_flex.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->yy_buffer_status == YY_BUFFER_NEW )
            {
            /* We're scanning a new file or input source.  It's
             * possible that this happened because the user
             * just pointed yyin at a new source and called
             * yylex().  If so, then we have to assure
             * consistency between yy_current_buffer and our
             * globals.  Here is the right place to do so, because
             * this is the first action (other than possibly a
             * back-up) that will match for the new input source.
             */
            yy_n_chars = yy_current_buffer->yy_n_chars;
            yy_current_buffer->yy_input_file = yyin;
            yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL;
            }

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

            yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;

            yy_current_state = yy_get_previous_state();

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

            yy_next_state = yy_try_NUL_trans( yy_current_state );

            yy_bp = yytext_ptr + YY_MORE_ADJ;

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

            else
                {
                yy_cp = yy_c_buf_p;
                goto yy_find_action;
                }
            }

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

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

                    yy_act = YY_STATE_EOF(YY_START);
                    goto do_action;
                    }

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

            case EOB_ACT_CONTINUE_SCAN:
                yy_c_buf_p =
                    yytext_ptr + yy_amount_of_matched_text;

                yy_current_state = yy_get_previous_state();

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

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

                yy_current_state = yy_get_previous_state();

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

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


/* yy_get_next_buffer - try to read in a new buffer
 *
 * Returns a code representing an action:
 *  EOB_ACT_LAST_MATCH -
 *  EOB_ACT_CONTINUE_SCAN - continue scanning from current position
 *  EOB_ACT_END_OF_FILE - end of file
 */

static int yy_get_next_buffer()
    {
    register char *dest = yy_current_buffer->yy_ch_buf;
    register char *source = yytext_ptr;
    register int number_to_move, i;
    int ret_val;

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

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

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

    /* Try to read more data. */

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

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

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

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

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

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

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

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

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

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

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

            yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset];

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

        if ( num_to_read > YY_READ_BUF_SIZE )
            num_to_read = YY_READ_BUF_SIZE;

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

        yy_current_buffer->yy_n_chars = yy_n_chars;
        }

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

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

    else
        ret_val = EOB_ACT_CONTINUE_SCAN;

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

    yytext_ptr = &yy_current_buffer->yy_ch_buf[0];

    return ret_val;
    }


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

static yy_state_type yy_get_previous_state()
    {
    register yy_state_type yy_current_state;
    register char *yy_cp;

    yy_current_state = yy_start;

    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 >= 9 )
                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 );
 */

#ifdef YY_USE_PROTOS
static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state )
#else
static yy_state_type yy_try_NUL_trans( yy_current_state )
yy_state_type yy_current_state;
#endif
    {
    register int yy_is_jam;
    register 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 >= 9 )
            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 == 8);

    return yy_is_jam ? 0 : yy_current_state;
    }


#ifndef YY_NO_UNPUT
#ifdef YY_USE_PROTOS
static void yyunput( int c, register char *yy_bp )
#else
static void yyunput( c, yy_bp )
int c;
register char *yy_bp;
#endif
    {
    register char *yy_cp = yy_c_buf_p;

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

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

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

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

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

    *--yy_cp = (char) c;


    yytext_ptr = yy_bp;
    yy_hold_char = *yy_cp;
    yy_c_buf_p = yy_cp;
    }
#endif  /* ifndef YY_NO_UNPUT */


#ifdef __cplusplus
static int yyinput()
#else
static int input()
#endif
    {
    int c;

    *yy_c_buf_p = yy_hold_char;

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

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