phpDocumentor PHP_LexerGenerator
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PHP_LexerGenerator
Packages:
PHP_LexerGenerator

Source for file Lexer.php

Documentation is available at Lexer.php

  1. <?php
  2. require_once dirname(__FILE__) . '/Parser.php';
  3. class PHP_LexerGenerator_Regex_Lexer
  4. {
  5.     const MATCHSTART = PHP_LexerGenerator_Regex_Parser::MATCHSTART;
  6.     const MATCHEND = PHP_LexerGenerator_Regex_Parser::MATCHEND;
  7.     const CONTROLCHAR = PHP_LexerGenerator_Regex_Parser::CONTROLCHAR;
  8.     const OPENCHARCLASS = PHP_LexerGenerator_Regex_Parser::OPENCHARCLASS;
  9.     const FULLSTOP = PHP_LexerGenerator_Regex_Parser::FULLSTOP;
  10.     const TEXT = PHP_LexerGenerator_Regex_Parser::TEXT;
  11.     const BACKREFERENCE = PHP_LexerGenerator_Regex_Parser::BACKREFERENCE;
  12.     const OPENASSERTION = PHP_LexerGenerator_Regex_Parser::OPENASSERTION;
  13.     const COULDBEBACKREF = PHP_LexerGenerator_Regex_Parser::COULDBEBACKREF;
  14.     const NEGATE = PHP_LexerGenerator_Regex_Parser::NEGATE;
  15.     const HYPHEN = PHP_LexerGenerator_Regex_Parser::HYPHEN;
  16.     const CLOSECHARCLASS = PHP_LexerGenerator_Regex_Parser::CLOSECHARCLASS;
  17.     const BAR = PHP_LexerGenerator_Regex_Parser::BAR;
  18.     const MULTIPLIER = PHP_LexerGenerator_Regex_Parser::MULTIPLIER;
  19.     const INTERNALOPTIONS = PHP_LexerGenerator_Regex_Parser::INTERNALOPTIONS;
  20.     const COLON = PHP_LexerGenerator_Regex_Parser::COLON;
  21.     const OPENPAREN = PHP_LexerGenerator_Regex_Parser::OPENPAREN;
  22.     const CLOSEPAREN = PHP_LexerGenerator_Regex_Parser::CLOSEPAREN;
  23.     const PATTERNNAME = PHP_LexerGenerator_Regex_Parser::PATTERNNAME;
  24.     const POSITIVELOOKBEHIND = PHP_LexerGenerator_Regex_Parser::POSITIVELOOKBEHIND;
  25.     const NEGATIVELOOKBEHIND = PHP_LexerGenerator_Regex_Parser::NEGATIVELOOKBEHIND;
  26.     const POSITIVELOOKAHEAD = PHP_LexerGenerator_Regex_Parser::POSITIVELOOKAHEAD;
  27.     const NEGATIVELOOKAHEAD = PHP_LexerGenerator_Regex_Parser::NEGATIVELOOKAHEAD;
  28.     const ONCEONLY = PHP_LexerGenerator_Regex_Parser::ONCEONLY;
  29.     const COMMENT = PHP_LexerGenerator_Regex_Parser::COMMENT;
  30.     const RECUR = PHP_LexerGenerator_Regex_Parser::RECUR;
  31.     const ESCAPEDBACKSLASH = PHP_LexerGenerator_Regex_Parser::ESCAPEDBACKSLASH;
  32.     private $input;
  33.     private $N;
  34.     public $token;
  35.     public $value;
  36.     public $line;
  37.  
  38.     function __construct($data)
  39.     {
  40.         $this->input = $data;
  41.         $this->N = 0;
  42.     }
  43.  
  44.     function reset($data)
  45.     {
  46.         $this->input = $data;
  47.         $this->N = 0;
  48.         $this->yybegin(self::INITIAL);
  49.     }
  50.  
  51.  
  52.     private $_yy_state = 1;
  53.     private $_yy_stack = array();
  54.  
  55.     function yylex()
  56.     {
  57.         return $this->{'yylex' . $this->_yy_state}();
  58.     }
  59.  
  60.     function yypushstate($state)
  61.     {
  62.         array_push($this->_yy_stack, $this->_yy_state);
  63.         $this->_yy_state = $state;
  64.     }
  65.  
  66.     function yypopstate()
  67.     {
  68.         $this->_yy_state = array_pop($this->_yy_stack);
  69.     }
  70.  
  71.     function yybegin($state)
  72.     {
  73.         $this->_yy_state = $state;
  74.     }
  75.  
  76.  
  77.  
  78.     function yylex1()
  79.     {
  80.         $tokenMap = array (
  81.               1 => 0,
  82.               2 => 0,
  83.               3 => 0,
  84.               4 => 0,
  85.               5 => 0,
  86.               6 => 0,
  87.               7 => 0,
  88.               8 => 0,
  89.               9 => 0,
  90.               10 => 0,
  91.               11 => 0,
  92.               12 => 0,
  93.               13 => 0,
  94.               14 => 0,
  95.               15 => 0,
  96.               16 => 0,
  97.               17 => 0,
  98.               18 => 0,
  99.               19 => 0,
  100.               20 => 0,
  101.               21 => 0,
  102.               22 => 0,
  103.               23 => 0,
  104.             );
  105.         if ($this->N >= strlen($this->input)) {
  106.             return false; // end of input
  107.         }
  108.         $yy_global_pattern = "/^(\\\\\\\\)|^([^[\\\\^$.|()?*+{}]+)|^(\\\\[][{}*.^$|?()+])|^(\\[)|^(\\|)|^(\\\\[0-9][0-9])|^(\\\\[frnt]|\\\\x[0-9a-fA-F][0-9a-fA-F]?|\\\\[0-7][0-7][0-7]|\\\\x\\{[0-9a-fA-F]+\\})|^(\\\\[abBGcedDsSwW0C])|^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)/";
  109.  
  110.         do {
  111.             if (preg_match($yy_global_pattern, substr($this->input, $this->N), $yymatches)) {
  112.                 $yysubmatches = $yymatches;
  113.                 $yymatches = array_filter($yymatches, 'strlen'); // remove empty sub-patterns
  114.                 if (!count($yymatches)) {
  115.                     throw new Exception('Error: lexing failed because a rule matched' .
  116.                         'an empty string.  Input "' . substr($this->input,
  117.                         $this->N, 5) . '... state INITIAL');
  118.                 }
  119.                 next($yymatches); // skip global match
  120.                 $this->token = key($yymatches); // token number
  121.                 if ($tokenMap[$this->token]) {
  122.                     // extract sub-patterns for passing to lex function
  123.                     $yysubmatches = array_slice($yysubmatches, $this->token + 1,
  124.                         $tokenMap[$this->token]);
  125.                 } else {
  126.                     $yysubmatches = array();
  127.                 }
  128.                 $this->value = current($yymatches); // token value
  129.                 $r = $this->{'yy_r1_' . $this->token}($yysubmatches);
  130.                 if ($r === null) {
  131.                     $this->N += strlen($this->value);
  132.                     $this->line += substr_count("\n", $this->value);
  133.                     // accept this token
  134.                     return true;
  135.                 } elseif ($r === true) {
  136.                     // we have changed state
  137.                     // process this token in the new state
  138.                     return $this->yylex();
  139.                 } elseif ($r === false) {
  140.                     $this->N += strlen($this->value);
  141.                     $this->line += substr_count("\n", $this->value);
  142.                     if ($this->N >= strlen($this->input)) {
  143.                         return false; // end of input
  144.                     }
  145.                     // skip this token
  146.                     continue;
  147.                 } else {                    $yy_yymore_patterns = array(
  148.         1 => "^([^[\\\\^$.|()?*+{}]+)|^(\\\\[][{}*.^$|?()+])|^(\\[)|^(\\|)|^(\\\\[0-9][0-9])|^(\\\\[frnt]|\\\\x[0-9a-fA-F][0-9a-fA-F]?|\\\\[0-7][0-7][0-7]|\\\\x\\{[0-9a-fA-F]+\\})|^(\\\\[abBGcedDsSwW0C])|^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  149.         2 => "^(\\\\[][{}*.^$|?()+])|^(\\[)|^(\\|)|^(\\\\[0-9][0-9])|^(\\\\[frnt]|\\\\x[0-9a-fA-F][0-9a-fA-F]?|\\\\[0-7][0-7][0-7]|\\\\x\\{[0-9a-fA-F]+\\})|^(\\\\[abBGcedDsSwW0C])|^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  150.         3 => "^(\\[)|^(\\|)|^(\\\\[0-9][0-9])|^(\\\\[frnt]|\\\\x[0-9a-fA-F][0-9a-fA-F]?|\\\\[0-7][0-7][0-7]|\\\\x\\{[0-9a-fA-F]+\\})|^(\\\\[abBGcedDsSwW0C])|^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  151.         4 => "^(\\|)|^(\\\\[0-9][0-9])|^(\\\\[frnt]|\\\\x[0-9a-fA-F][0-9a-fA-F]?|\\\\[0-7][0-7][0-7]|\\\\x\\{[0-9a-fA-F]+\\})|^(\\\\[abBGcedDsSwW0C])|^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  152.         5 => "^(\\\\[0-9][0-9])|^(\\\\[frnt]|\\\\x[0-9a-fA-F][0-9a-fA-F]?|\\\\[0-7][0-7][0-7]|\\\\x\\{[0-9a-fA-F]+\\})|^(\\\\[abBGcedDsSwW0C])|^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  153.         6 => "^(\\\\[frnt]|\\\\x[0-9a-fA-F][0-9a-fA-F]?|\\\\[0-7][0-7][0-7]|\\\\x\\{[0-9a-fA-F]+\\})|^(\\\\[abBGcedDsSwW0C])|^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  154.         7 => "^(\\\\[abBGcedDsSwW0C])|^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  155.         8 => "^(\\^)|^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  156.         9 => "^(\\\\A)|^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  157.         10 => "^(\\))|^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  158.         11 => "^(\\$)|^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  159.         12 => "^([*?+]|\\{[0-9]+\\}|\\{[0-9]+,\\}|\\{[0-9]+,[0-9]+\\})|^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  160.         13 => "^(\\\\[zZ])|^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  161.         14 => "^(\\(\\?)|^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  162.         15 => "^(\\()|^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  163.         16 => "^(\\.)|^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  164.         17 => "^(\\\\[1-9])|^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  165.         18 => "^(\\\\p\\{\\^?..?\\}|\\\\P\\{..?\\}|\\\\X)|^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  166.         19 => "^(\\\\p\\{C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  167.         20 => "^(\\\\p\\{\\^C[cfnos]?|L[lmotu]?|M[cen]?|N[dlo]?|P[cdefios]?|S[ckmo]?|Z[lps]?\\})|^(\\\\p[CLMNPSZ])|^(\\\\)",
  168.         21 => "^(\\\\p[CLMNPSZ])|^(\\\\)",
  169.         22 => "^(\\\\)",
  170.         23 => "",
  171.     );
  172.  
  173.                     // yymore is needed
  174.                     do {
  175.                         if (!strlen($yy_yymore_patterns[$this->token])) {
  176.                             throw new Exception('cannot do yymore for the last token');
  177.                         }
  178.                         if (preg_match($yy_yymore_patterns[$this->token],
  179.                               substr($this->input, $this->N), $yymatches)) {
  180.                             $yymatches = array_filter($yymatches, 'strlen'); // remove empty sub-patterns
  181.                             next($yymatches); // skip global match
  182.                             $this->token = key($yymatches); // token number
  183.                             $this->value = current($yymatches); // token value
  184.                             $this->line = substr_count("\n", $this->value);
  185.                         }
  186.                     } while ($this->{'yy_r1_' . $this->token}() !== null);
  187.                     // accept
  188.                     $this->N += strlen($this->value);
  189.                     $this->line += substr_count("\n", $this->value);
  190.                     return true;
  191.                 }
  192.             } else {
  193.                 throw new Exception('Unexpected input at line' . $this->line .
  194.                     ': ' . $this->input[$this->N]);
  195.             }
  196.             break;
  197.         } while (true);
  198.     } // end function
  199.  
  200.  
  201.     
  202.  
  203.  
  204.     const INITIAL = 1;
  205.     function yy_r1_1($yy_subpatterns)
  206.     {
  207.  
  208.     $this->token = self::ESCAPEDBACKSLASH;
  209.     }
  210.     function yy_r1_2($yy_subpatterns)
  211.     {
  212.  
  213.     $this->token = self::TEXT;
  214.     }
  215.     function yy_r1_3($yy_subpatterns)
  216.     {
  217.  
  218.     $this->token = self::CONTROLCHAR;
  219.     }
  220.     function yy_r1_4($yy_subpatterns)
  221.     {
  222.  
  223.     $this->token = self::OPENCHARCLASS;
  224.     $this->yybegin(self::CHARACTERCLASSSTART);
  225.     }
  226.     function yy_r1_5($yy_subpatterns)
  227.     {
  228.  
  229.     $this->token = self::BAR;
  230.     }
  231.     function yy_r1_6($yy_subpatterns)
  232.     {
  233.  
  234.     $this->token = self::COULDBEBACKREF;
  235.     }
  236.     function yy_r1_7($yy_subpatterns)
  237.     {
  238.  
  239.     $this->token = self::TEXT;
  240.     }
  241.     function yy_r1_8($yy_subpatterns)
  242.     {
  243.  
  244.     $this->token = self::CONTROLCHAR;
  245.     }
  246.     function yy_r1_9($yy_subpatterns)
  247.     {
  248.  
  249.     $this->token = self::MATCHSTART;
  250.     }
  251.     function yy_r1_10($yy_subpatterns)
  252.     {
  253.  
  254.     $this->token = self::MATCHSTART;
  255.     }
  256.     function yy_r1_11($yy_subpatterns)
  257.     {
  258.  
  259.     $this->token = self::CLOSEPAREN;
  260.     $this->yybegin(self::INITIAL);
  261.     }
  262.     function yy_r1_12($yy_subpatterns)
  263.     {
  264.  
  265.     $this->token = self::MATCHEND;
  266.     }
  267.     function yy_r1_13($yy_subpatterns)
  268.     {
  269.  
  270.     $this->token = self::MULTIPLIER;
  271.     }
  272.     function yy_r1_14($yy_subpatterns)
  273.     {
  274.  
  275.     $this->token = self::MATCHEND;
  276.     }
  277.     function yy_r1_15($yy_subpatterns)
  278.     {
  279.  
  280.     $this->token = self::OPENASSERTION;
  281.     $this->yybegin(self::ASSERTION);
  282.     }
  283.     function yy_r1_16($yy_subpatterns)
  284.     {
  285.  
  286.     $this->token = self::OPENPAREN;
  287.     }
  288.     function yy_r1_17($yy_subpatterns)
  289.     {
  290.  
  291.     $this->token = self::FULLSTOP;
  292.     }
  293.     function yy_r1_18($yy_subpatterns)
  294.     {
  295.  
  296.     $this->token = self::BACKREFERENCE;
  297.     }
  298.     function yy_r1_19($yy_subpatterns)
  299.     {
  300.  
  301.     $this->token = self::