Logo Search packages:      
Sourcecode: mailfilter version File versions  Download package

rfc822.cc

#line 2 "rfc822.cc"

#line 4 "rfc822.cc"

#define  YY_INT_ALIGNED short int

/* A lexical scanner generated by flex */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#define YY_FLEX_SUBMINOR_VERSION 35
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif

    /* 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 rfcFlexLexer

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

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

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

extern int 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)
    
/* 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_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef size_t yy_size_t;
#endif

#ifndef YY_STRUCT_YY_BUFFER_STATE
#define YY_STRUCT_YY_BUFFER_STATE
struct yy_buffer_state
      {

      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.
       */
      int yy_n_chars;

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

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

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

    int yy_bs_lineno; /**< The line count. */
    int yy_bs_column; /**< The column count. */
    
      /* Whether to try to fill the input buffer when we reach the
       * end of it.
       */
      int yy_fill_buffer;

      int yy_buffer_status;

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

      };
#endif /* !YY_STRUCT_YY_BUFFER_STATE */

/* We provide macros for accessing buffer states in case in the
 * future we want to put the buffer states in a more general
 * "scanner state".
 *
 * Returns the top of the stack, or NULL.
 */
#define YY_CURRENT_BUFFER ( (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 *rfcalloc (yy_size_t  );
void *rfcrealloc (void *,yy_size_t  );
void rfcfree (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; }

/* 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 8
#define YY_END_OF_BUFFER 9
/* 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[44] =
    {   0,
        0,    0,    0,    0,    0,    0,    9,    8,    6,    7,
        8,    4,    4,    4,    4,    8,    8,    8,    6,    7,
        8,    8,    0,    4,    0,    2,    0,    0,    0,    0,
        0,    3,    0,    2,    0,    0,    0,    5,    0,    0,
        0,    1,    0
    } ;

static yyconst flex_int32_t yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        4,    4,    5,    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,    6,    7,    1,    8,    8,    8,
        8,    8,    8,    8,    8,    8,    8,    9,    1,    1,
        1,    1,    1,    1,   10,   10,   10,   10,   10,   11,
       10,   10,   10,   10,   10,   10,   12,   10,   13,   10,
       10,   14,   10,   10,   10,   10,   10,   10,   10,   10,
        1,    1,    1,    1,    1,    1,   10,   10,   10,   10,

       10,   15,   10,   10,   10,   10,   10,   10,   16,   10,
       17,   10,   10,   18,   10,   10,   10,   10,   10,   10,
       10,   10,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    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[19] =
    {   0,
        1,    2,    3,    2,    2,    4,    1,    4,    4,    4,
        4,    4,    4,    4,    4,    4,    4,    4
    } ;

static yyconst flex_int16_t yy_base[52] =
    {   0,
        0,    5,   22,   26,   30,   23,   80,  108,  108,  108,
       76,    0,    0,    0,   75,   33,   37,   72,   71,   70,
       69,   44,   66,    0,   58,    0,   22,   43,   60,   45,
       60,  108,   54,    0,   50,   55,   67,  108,   48,   39,
       49,  108,  108,   85,   89,   93,   33,   97,    0,  100,
      103
    } ;

static yyconst flex_int16_t yy_def[52] =
    {   0,
       44,   43,   45,   45,   44,    2,   43,   43,   43,   43,
       43,   46,   46,   46,   46,   47,   47,   48,   48,   43,
       48,   48,   43,   46,   49,   50,   17,   17,   48,   48,
       43,   43,   43,   50,   17,   43,   17,   43,   51,   51,
       51,   43,    0,   43,   43,   43,   43,   43,   43,   43,
       43
    } ;

static yyconst flex_int16_t yy_nxt[127] =
    {   0,
       43,    9,   10,   25,   11,    8,   12,   13,   14,   15,
        8,    8,    8,    8,   16,   17,   16,   16,   16,   17,
       16,   16,   16,   19,   20,   21,   22,   19,   20,   21,
       22,    9,   10,   16,   11,   27,   27,   16,   25,   27,
       25,   26,   25,   41,   25,   26,   32,   32,   30,   30,
       28,   42,   41,   41,   28,   35,   27,   38,   36,   35,
       27,   37,   32,   27,   30,   37,   26,   27,   39,   39,
       39,   39,   33,   30,   31,   30,   30,   23,   23,   43,
       27,   43,   43,   43,   27,    8,    8,    8,    8,   18,
       18,   18,   18,   24,   24,   43,   24,   29,   29,   43,

       29,   34,   34,   40,   40,   43,   40,    7,   43,   43,
       43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
       43,   43,   43,   43,   43,   43
    } ;

static yyconst flex_int16_t yy_chk[127] =
    {   0,
        0,    1,    1,   49,    1,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    3,    3,    3,    3,    4,    4,    4,
        4,    5,    5,    6,    5,   27,   47,    6,   16,   27,
       16,   16,   17,   40,   17,   17,   22,   30,   22,   30,
       17,   41,   39,   41,   17,   28,   28,   36,   33,   28,
       28,   35,   31,   35,   29,   35,   25,   35,   37,   37,
       37,   37,   23,   21,   20,   19,   18,   15,   11,    7,
       37,    0,    0,    0,   37,   44,   44,   44,   44,   45,
       45,   45,   45,   46,   46,    0,   46,   48,   48,    0,

       48,   50,   50,   51,   51,    0,   51,   43,   43,   43,
       43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
       43,   43,   43,   43,   43,   43
    } ;

/* 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 "rfc822.ll"
/* *********************************************************************** */
/* An oversimplified scanner definition for Mailfilter's RFC822 scanner    */
/* Copyright (c) 2000 - 2009  Andreas Bauer <baueran@gmail.com>            */
/*                                                                         */
/* This program is free software; you can redistribute it and/or modify    */
/* it under the terms of the GNU General Public License as published by    */
/* the Free Software Foundation; either version 2 of the License, or       */
/* (at your option) any later version.                                     */
/*                                                                         */
/* This program is distributed in the hope that it will be useful,         */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of          */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           */
/* GNU General Public License for more details.                            */
/*                                                                         */
/* You should have received a copy of the GNU General Public License       */
/* along with this program; if not, write to the Free Software             */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,   */
/* USA.                                                                    */
/* *********************************************************************** */


#line 26 "rfc822.ll"
#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include "rfc822parser.hh"

using namespace std;

/* Define L_DEBUG_MODE to get extra output from the scanner
   and to avoid returning too early.  Early return is useless
   if there is no parser which keeps calling the scanners.  */

#undef L_DEBUG_MODE

/* Return should be defined to a nop-operation, if the programmer
   really only debugs a single message offline.  */

#define RETURN(x) return(x)

#ifdef  L_DEBUG_MODE
#undef  L_DEBUG_MSG
#define L_DEBUG_MSG(msg)    \
   cout << "Lexer: "        \
        << msg
#else
#undef  L_DEBUG_MSG
#define L_DEBUG_MSG(msg)    \
   ;
#endif

#line 509 "rfc822.cc"

#define INITIAL 0
#define BODY_READY 1
#define TAG_READY 2

#ifndef YY_NO_UNISTD_H
/* Special case for "unistd.h", since it is non-ANSI. We include it way
 * down here because we want the user's section 1 to have been scanned first.
 * The user has a chance to override it with an option.
 */
#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
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k */
#define YY_READ_BUF_SIZE 16384
#else
#define YY_READ_BUF_SIZE 8192
#endif /* __ia64__ */
#endif

/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
#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 \
      if ( yyleng > 0 ) \
            YY_CURRENT_BUFFER_LVALUE->yy_at_bol = \
                        (yytext[yyleng - 1] == '\n'); \
      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;
    
#line 64 "rfc822.ll"

#line 621 "rfc822.cc"

      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(  );
            }

      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_current_state += YY_AT_BOL();
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 >= 44 )
                              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] != 108 );

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 65 "rfc822.ll"
{
      rfclval.sval = strdup (yytext);
      L_DEBUG_MSG("Topline: " + (string)yytext);
      RETURN(TOPLINE);
}
      YY_BREAK
case 2:
/* rule 2 can match eol */
YY_RULE_SETUP
#line 71 "rfc822.ll"
{
      string the_tag = yytext;
      the_tag = the_tag.substr (0, the_tag.find_last_of (":"));
      rfclval.sval = strdup (the_tag.c_str ());
      L_DEBUG_MSG("   Tag: " +  the_tag + "\n");
      BEGIN(BODY_READY);
      RETURN(TAG);
}
      YY_BREAK
case 3:
/* rule 3 can match eol */
YY_RULE_SETUP
#line 80 "rfc822.ll"
{
      /* Remove trailing newline if it exists.  */
      if (yytext[strlen(yytext) - 1] == '\n')
        {
          char* the_tag = (char*)malloc (sizeof (char) * strlen (yytext));
          snprintf (the_tag, strlen (yytext) - 1, "%s", yytext);
          rfclval.sval = the_tag;
        }
      else
        rfclval.sval = strdup (yytext);
      L_DEBUG_MSG("  Body: " + (string)yytext);
      BEGIN(0);
      RETURN(BODY);
}
      YY_BREAK
case 4:
/* rule 4 can match eol */
YY_RULE_SETUP
#line 95 "rfc822.ll"
{
      /* This is to scan multiple lines of a header
         body field, e.g. the Received fields are
         usually spread over multiple lines.
         In order to handle the leading white spaces,
         we need to replace them with ordinary blanks.  */
      char* the_tag = yytext;
      for (unsigned int i = 0; i <= strlen (the_tag); i++)
         if (isspace (the_tag[i])) the_tag[i] = ' ';
      rfclval.sval = strdup (the_tag);
      L_DEBUG_MSG("M-Body: " + (string)the_tag);
      BEGIN(TAG_READY);
      RETURN(BODY);
}
      YY_BREAK
case 5:
/* rule 5 can match eol */
YY_RULE_SETUP
#line 110 "rfc822.ll"
{
      rfclval.sval = strdup (yytext);
      L_DEBUG_MSG("EOF.\n");
      RETURN(HEADER_END);
}
      YY_BREAK
case 6:
YY_RULE_SETUP
#line 116 "rfc822.ll"
{; /* Do nothing with tabs and spaces.  */ }
      YY_BREAK
case 7:
/* rule 7 can match eol */
YY_RULE_SETUP
#line 118 "rfc822.ll"
{ BEGIN(0); }
      YY_BREAK
case 8:
YY_RULE_SETUP
#line 120 "rfc822.ll"
ECHO;
      YY_BREAK
#line 792 "rfc822.cc"
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(BODY_READY):
case YY_STATE_EOF(TAG_READY):
      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 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;
      rfcfree(yy_start_stack  );
      yy_delete_buffer( YY_CURRENT_BUFFER );
      rfcfree(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
            {
                  int num_to_read =
                  YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;

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

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

                  int yy_c_buf_p_offset =
                        (int) ((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. */
                              rfcrealloc((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), (size_t) 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 *) rfcrealloc((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);
      yy_current_state += YY_AT_BOL();

      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 >= 44 )
                        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 >= 44 )
                  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 == 43);

      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 int 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 */
                  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 );

                              /*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);

      YY_CURRENT_BUFFER_LVALUE->yy_at_bol = (c == '\n');

      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) rfcalloc(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 *) rfcalloc(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 )
            rfcfree((void *) b->yy_ch_buf  );

      rfcfree((void *) b  );
}

extern "C" int isatty (int );

/* 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)
{
      int 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**)rfcalloc
                                                (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**)rfcrealloc
                                                ((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 *) rfcalloc(new_size  );

            else
                  (yy_start_stack) = (int *) rfcrealloc((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 *rfcalloc (yy_size_t  size )
{
      return (void *) malloc( size );
}

void *rfcrealloc  (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 rfcfree (void * ptr )
{
      free( (char *) ptr );   /* see rfcrealloc() for (char *) cast */
}

#define YYTABLES_NAME "yytables"

#line 120 "rfc822.ll"


/* In order to test the following code and to create a standalone scanner,
   read the comments inside Makefile.am and compile only the Makefile
   target `rfc_test'.  */

int rfcwrap ();

#ifdef SCANNER_STANDALONE
#include <fstream>

int main (int argc, char** argv)
{
    FlexLexer* lexer = new rfcFlexLexer;
    ++argv, --argc;  /* Skip over program name.  */
    lexer->switch_streams (new ifstream (argv[0]));
    lexer->rfclex ();
    delete lexer;
    return 0;
}
#endif

int rfcwrap () { return 1; }


Generated by  Doxygen 1.6.0   Back to index