string = $s->string; $this->metadata = $s->metadata; } else { $this->string = (string) $s; if ($m instanceof PHP_LexerGenerator_ParseryyToken) { $this->metadata = $m->metadata; } elseif (is_array($m)) { $this->metadata = $m; } } } function __toString() { return $this->_string; } function offsetExists($offset) { return isset($this->metadata[$offset]); } function offsetGet($offset) { return $this->metadata[$offset]; } function offsetSet($offset, $value) { if ($offset === null) { if (isset($value[0])) { $x = ($value instanceof PHP_LexerGenerator_ParseryyToken) ? $value->metadata : $value; $this->metadata = array_merge($this->metadata, $x); return; } $offset = count($this->metadata); } if ($value === null) { return; } if ($value instanceof PHP_LexerGenerator_ParseryyToken) { if ($value->metadata) { $this->metadata[$offset] = $value->metadata; } } elseif ($value) { $this->metadata[$offset] = $value; } } function offsetUnset($offset) { unset($this->metadata[$offset]); } } /** The following structure represents a single element of the * parser's stack. Information stored includes: * * + The state number for the parser at this level of the stack. * * + The value of the token stored at this level of the stack. * (In other words, the "major" token.) * * + The semantic value stored at this level of the stack. This is * the information used by the action routines in the grammar. * It is sometimes called the "minor" token. */ class PHP_LexerGenerator_ParseryyStackEntry { public $stateno; /* The state-number */ public $major; /* The major token value. This is the code ** number for the token at this stack level */ public $minor; /* The user-supplied minor token value. This ** is the value of the token */ }; // code external to the class is included here #line 3 "LexerGenerator\Parser.y" /* ?> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the distribution. * * Neither the name of the PHP_LexerGenerator nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * @category php * @package PHP_LexerGenerator * @author Gregory Beaver * @copyright 2006 Gregory Beaver * @license http://www.opensource.org/licenses/bsd-license.php New BSD License * @version CVS: $Id$ * @since File available since Release 0.1.0 */ /** * For regular expression validation */ require_once 'PHP/LexerGenerator/Regex/Lexer.php'; require_once 'PHP/LexerGenerator/Regex/Parser.php'; require_once 'PHP/LexerGenerator/Exception.php'; /** * Token parser for plex files. * * This parser converts tokens pulled from {@link PHP_LexerGenerator_Lexer} * into abstract patterns and rules, then creates the output file * @package PHP_LexerGenerator * @author Gregory Beaver * @copyright 2006 Gregory Beaver * @license http://www.php.net/license/3_01.txt PHP License 3.01 * @version 0.2.0 * @since Class available since Release 0.1.0 */ #line 166 "LexerGenerator\Parser.php" // declare_class is output here #line 2 "LexerGenerator\Parser.y" class PHP_LexerGenerator_Parser#line 171 "LexerGenerator\Parser.php" { /* First off, code is included which follows the "include_class" declaration ** in the input file. */ #line 82 "LexerGenerator\Parser.y" private $patterns; private $out; private $lex; private $input; private $counter; private $token; private $value; private $line; private $_regexLexer; private $_regexParser; public $transTable = array( 1 => self::PHPCODE, 2 => self::COMMENTSTART, 3 => self::COMMENTEND, 4 => self::QUOTE, 5 => self::PATTERN, 6 => self::CODE, 7 => self::SUBPATTERN, 8 => self::PI, ); function __construct($outfile, $lex) { $this->out = fopen($outfile, 'wb'); if (!$this->out) { throw new Exception('unable to open lexer output file "' . $outfile . '"'); } $this->lex = $lex; $this->_regexLexer = new PHP_LexerGenerator_Regex_Lexer(''); $this->_regexParser = new PHP_LexerGenerator_Regex_Parser($this->_regexLexer); } function outputRules($rules, $statename) { static $ruleindex = 1; $patterns = array(); $pattern = '/'; $ruleMap = array(); $tokenindex = array(); $i = 0; $actualindex = 1; foreach ($rules as $rule) { $ruleMap[$i++] = $actualindex; $tokenindex[$actualindex] = $rule['subpatterns']; $actualindex += $rule['subpatterns'] + 1; $patterns[] = '^(' . $rule['pattern'] . ')'; } $tokenindex = var_export($tokenindex, true); $tokenindex = explode("\n", $tokenindex); // indent for prettiness $tokenindex = implode("\n ", $tokenindex); $pattern .= implode('|', $patterns); $pattern .= '/'; if (!$statename) { $statename = $ruleindex; } fwrite($this->out, ' function yylex' . $ruleindex . '() { $tokenMap = ' . $tokenindex . '; if (' . $this->counter . ' >= strlen(' . $this->input . ')) { return false; // end of input } '); fwrite($this->out, '$yy_global_pattern = "' . $pattern . '";' . "\n"); fwrite($this->out, ' do { if (preg_match($yy_global_pattern, substr(' . $this->input . ', ' . $this->counter . '), $yymatches)) { $yysubmatches = $yymatches; $yymatches = array_filter($yymatches, \'strlen\'); // remove empty sub-patterns if (!count($yymatches)) { throw new Exception(\'Error: lexing failed because a rule matched\' . \'an empty string. Input "\' . substr(' . $this->input . ', ' . $this->counter . ', 5) . \'... state ' . $statename . '\'); } next($yymatches); // skip global match ' . $this->token . ' = key($yymatches); // token number if ($tokenMap[' . $this->token . ']) { // extract sub-patterns for passing to lex function $yysubmatches = array_slice($yysubmatches, ' . $this->token . ' + 1, $tokenMap[' . $this->token . ']); } else { $yysubmatches = array(); } ' . $this->value . ' = current($yymatches); // token value $r = $this->{\'yy_r' . $ruleindex . '_\' . ' . $this->token . '}($yysubmatches); if ($r === null) { ' . $this->counter . ' += strlen($this->value); ' . $this->line . ' += substr_count("\n", ' . $this->value . '); // accept this token return true; } elseif ($r === true) { // we have changed state // process this token in the new state return $this->yylex(); } elseif ($r === false) { ' . $this->counter . ' += strlen($this->value); ' . $this->line . ' += substr_count("\n", ' . $this->value . '); if (' . $this->counter . ' >= strlen(' . $this->input . ')) { return false; // end of input } // skip this token continue; } else {'); fwrite($this->out, ' $yy_yymore_patterns = array(' . "\n"); for($i = 0; count($patterns); $i++) { unset($patterns[$i]); fwrite($this->out, ' ' . $ruleMap[$i] . ' => "' . implode('|', $patterns) . "\",\n"); } fwrite($this->out, ' );' . "\n"); fwrite($this->out, ' // yymore is needed do { if (!strlen($yy_yymore_patterns[' . $this->token . '])) { throw new Exception(\'cannot do yymore for the last token\'); } if (preg_match($yy_yymore_patterns[' . $this->token . '], substr(' . $this->input . ', ' . $this->counter . '), $yymatches)) { $yymatches = array_filter($yymatches, \'strlen\'); // remove empty sub-patterns next($yymatches); // skip global match ' . $this->token . ' = key($yymatches); // token number ' . $this->value . ' = current($yymatches); // token value ' . $this->line . ' = substr_count("\n", ' . $this->value . '); } } while ($this->{\'yy_r' . $ruleindex . '_\' . ' . $this->token . '}() !== null); // accept ' . $this->counter . ' += strlen($this->value); ' . $this->line . ' += substr_count("\n", ' . $this->value . '); return true; } } else { throw new Exception(\'Unexpected input at line\' . ' . $this->line . ' . \': \' . ' . $this->input . '[' . $this->counter . ']); } break; } while (true); } // end function '); if ($statename) { fwrite($this->out, ' const ' . $statename . ' = ' . $ruleindex . '; '); } foreach ($rules as $i => $rule) { fwrite($this->out, ' function yy_r' . $ruleindex . '_' . $ruleMap[$i] . '($yy_subpatterns) { ' . $rule['code'] . ' } '); } $ruleindex++; // for next set of rules } function error($msg) { echo 'Error on line ' . $this->lex->line . ': ' , $msg; } function _validatePattern($pattern) { $this->_regexLexer->reset($pattern); try { while ($this->_regexLexer->yylex()) { $this->_regexParser->doParse( $this->_regexLexer->token, $this->_regexLexer->value); } $this->_regexParser->doParse(0, 0); } catch (PHP_LexerGenerator_Exception $e) { $this->error($e->getMessage()); throw new PHP_LexerGenerator_Exception('Invalid pattern "' . $pattern . '"'); } return $this->_regexParser->result; } #line 357 "LexerGenerator\Parser.php" /* Next is all token values, as class constants */ /* ** These constants (all generated automatically by the parser generator) ** specify the various kinds of tokens (terminals) that the parser ** understands. ** ** Each symbol here is a terminal symbol in the grammar. */ const PHPCODE = 1; const COMMENTSTART = 2; const COMMENTEND = 3; const PI = 4; const SUBPATTERN = 5; const CODE = 6; const PATTERN = 7; const QUOTE = 8; const YY_NO_ACTION = 94; const YY_ACCEPT_ACTION = 93; const YY_ERROR_ACTION = 92; /* Next are that tables used to determine what action to take based on the ** current state and lookahead token. These tables are used to implement ** functions that take a state number and lookahead value and return an ** action integer. ** ** Suppose the action integer is N. Then the action is determined as ** follows ** ** 0 <= N < self::YYNSTATE Shift N. That is, ** push the lookahead ** token onto the stack ** and goto state N. ** ** self::YYNSTATE <= N < self::YYNSTATE+self::YYNRULE Reduce by rule N-YYNSTATE. ** ** N == self::YYNSTATE+self::YYNRULE A syntax error has occurred. ** ** N == self::YYNSTATE+self::YYNRULE+1 The parser accepts its ** input. (and concludes parsing) ** ** N == self::YYNSTATE+self::YYNRULE+2 No such action. Denotes unused ** slots in the yy_action[] table. ** ** The action table is constructed as a single large static array $yy_action. ** Given state S and lookahead X, the action is computed as ** ** self::$yy_action[self::$yy_shift_ofst[S] + X ] ** ** If the index value self::$yy_shift_ofst[S]+X is out of range or if the value ** self::$yy_lookahead[self::$yy_shift_ofst[S]+X] is not equal to X or if ** self::$yy_shift_ofst[S] is equal to self::YY_SHIFT_USE_DFLT, it means that ** the action is not in the table and that self::$yy_default[S] should be used instead. ** ** The formula above is for computing the action when the lookahead is ** a terminal symbol. If the lookahead is a non-terminal (as occurs after ** a reduce action) then the static $yy_reduce_ofst array is used in place of ** the static $yy_shift_ofst array and self::YY_REDUCE_USE_DFLT is used in place of ** self::YY_SHIFT_USE_DFLT. ** ** The following are the tables generated in this section: ** ** self::$yy_action A single table containing all actions. ** self::$yy_lookahead A table containing the lookahead for each entry in ** yy_action. Used to detect hash collisions. ** self::$yy_shift_ofst For each state, the offset into self::$yy_action for ** shifting terminals. ** self::$yy_reduce_ofst For each state, the offset into self::$yy_action for ** shifting non-terminals after a reduce. ** self::$yy_default Default action for each state. */ const YY_SZ_ACTTAB = 87; static public $yy_action = array( /* 0 */ 33, 31, 58, 58, 3, 50, 50, 57, 44, 39, /* 10 */ 42, 58, 57, 55, 50, 42, 51, 36, 58, 58, /* 20 */ 59, 50, 50, 38, 58, 46, 45, 50, 35, 58, /* 30 */ 17, 2, 50, 93, 52, 16, 18, 6, 24, 19, /* 40 */ 2, 12, 41, 53, 48, 40, 30, 60, 1, 4, /* 50 */ 34, 10, 20, 43, 49, 32, 14, 58, 7, 20, /* 60 */ 50, 8, 20, 9, 20, 37, 47, 11, 20, 56, /* 70 */ 15, 5, 22, 54, 28, 23, 53, 21, 29, 25, /* 80 */ 2, 27, 6, 13, 53, 53, 26, ); static public $yy_lookahead = array( /* 0 */ 3, 3, 5, 5, 5, 8, 8, 5, 6, 3, /* 10 */ 8, 5, 5, 6, 8, 8, 3, 3, 5, 5, /* 20 */ 3, 8, 8, 4, 5, 5, 6, 8, 4, 5, /* 30 */ 1, 2, 8, 10, 11, 12, 1, 2, 4, 1, /* 40 */ 2, 7, 5, 1, 5, 8, 16, 8, 2, 5, /* 50 */ 4, 18, 19, 5, 6, 14, 15, 5, 18, 19, /* 60 */ 8, 18, 19, 18, 19, 5, 1, 18, 19, 1, /* 70 */ 7, 2, 13, 1, 17, 13, 20, 19, 4, 13, /* 80 */ 2, 17, 2, 12, 20, 20, 13, ); const YY_SHIFT_USE_DFLT = -4; const YY_SHIFT_MAX = 39; static public $yy_shift_ofst = array( /* 0 */ 35, 24, 19, 52, 52, 52, 74, 13, -2, -3, /* 10 */ 14, 6, 37, 38, 34, 37, 29, 78, 80, 78, /* 20 */ 7, 2, 46, 46, 48, 46, 46, 39, 39, 20, /* 30 */ 63, 42, 17, 72, 60, -1, 68, 69, 44, 65, ); const YY_REDUCE_USE_DFLT = -1; const YY_REDUCE_MAX = 19; static public $yy_reduce_ofst = array( /* 0 */ 23, 49, 45, 33, 43, 40, 41, 58, 58, 58, /* 10 */ 58, 58, 64, 59, 30, 57, 62, 73, 71, 66, ); static public $yyExpectedTokens = array( /* 0 */ array(1, 2, ), /* 1 */ array(4, 5, 8, ), /* 2 */ array(4, 5, 8, ), /* 3 */ array(5, 8, ), /* 4 */ array(5, 8, ), /* 5 */ array(5, 8, ), /* 6 */ array(4, ), /* 7 */ array(3, 5, 8, ), /* 8 */ array(3, 5, 8, ), /* 9 */ array(3, 5, 8, ), /* 10 */ array(3, 5, 8, ), /* 11 */ array(3, 5, 8, ), /* 12 */ array(5, 8, ), /* 13 */ array(1, 2, ), /* 14 */ array(4, 7, ), /* 15 */ array(5, 8, ), /* 16 */ array(1, 2, ), /* 17 */ array(2, ), /* 18 */ array(2, ), /* 19 */ array(2, ), /* 20 */ array(5, 6, 8, ), /* 21 */ array(5, 6, 8, ), /* 22 */ array(2, 4, ), /* 23 */ array(2, 4, ), /* 24 */ array(5, 6, ), /* 25 */ array(2, 4, ), /* 26 */ array(2, 4, ), /* 27 */ array(5, 8, ), /* 28 */ array(5, 8, ), /* 29 */ array(5, 6, ), /* 30 */ array(7, ), /* 31 */ array(1, ), /* 32 */ array(3, ), /* 33 */ array(1, ), /* 34 */ array(5, ), /* 35 */ array(5, ), /* 36 */ array(1, ), /* 37 */ array(2, ), /* 38 */ array(5, ), /* 39 */ array(1, ), /* 40 */ array(), /* 41 */ array(), /* 42 */ array(), /* 43 */ array(), /* 44 */ array(), /* 45 */ array(), /* 46 */ array(), /* 47 */ array(), /* 48 */ array(), /* 49 */ array(), /* 50 */ array(), /* 51 */ array(), /* 52 */ array(), /* 53 */ array(), /* 54 */ array(), /* 55 */ array(), /* 56 */ array(), /* 57 */ array(), /* 58 */ array(), /* 59 */ array(), /* 60 */ array(), ); static public $yy_default = array( /* 0 */ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, /* 10 */ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, /* 20 */ 92, 92, 64, 62, 92, 65, 63, 72, 73, 92, /* 30 */ 67, 75, 92, 74, 92, 92, 92, 92, 92, 78, /* 40 */ 88, 89, 86, 70, 83, 69, 68, 80, 91, 71, /* 50 */ 84, 79, 61, 77, 76, 82, 81, 87, 85, 66, /* 60 */ 90, ); /* The next thing included is series of defines which control ** various aspects of the generated parser. ** self::YYNOCODE is a number which corresponds ** to no legal terminal or nonterminal number. This ** number is used to fill in empty slots of the hash ** table. ** self::YYFALLBACK If defined, this indicates that one or more tokens ** have fall-back values which should be used if the ** original value of the token will not parse. ** self::YYSTACKDEPTH is the maximum depth of the parser's stack. ** self::YYNSTATE the combined number of states. ** self::YYNRULE the number of rules in the grammar ** self::YYERRORSYMBOL is the code number of the error symbol. If not ** defined, then do no error processing. */ const YYNOCODE = 21; const YYSTACKDEPTH = 100; const YYNSTATE = 61; const YYNRULE = 31; const YYERRORSYMBOL = 9; const YYERRSYMDT = 'yy0'; const YYFALLBACK = 0; /** The next table maps tokens into fallback tokens. If a construct * like the following: * * %fallback ID X Y Z. * * appears in the grammer, then ID becomes a fallback token for X, Y, * and Z. Whenever one of the tokens X, Y, or Z is input to the parser * but it does not parse, the type of the token is changed to ID and * the parse is retried before an error is thrown. */ static public $yyFallback = array( ); /** * Turn parser tracing on by giving a stream to which to write the trace * and a prompt to preface each trace message. Tracing is turned off * by making either argument NULL * * Inputs: * * - A stream resource to which trace output should be written. * If NULL, then tracing is turned off. * - A prefix string written at the beginning of every * line of trace output. If NULL, then tracing is * turned off. * * Outputs: * * - None. * @param resource * @param string */ static function Trace($TraceFILE, $zTracePrompt) { if (!$TraceFILE) { $zTracePrompt = 0; } elseif (!$zTracePrompt) { $TraceFILE = 0; } self::$yyTraceFILE = $TraceFILE; self::$yyTracePrompt = $zTracePrompt; } /** * Output debug information to output (php://output stream) */ static function PrintTrace() { self::$yyTraceFILE = fopen('php://output', 'w'); self::$yyTracePrompt = ''; } /** * @var resource|0 */ static public $yyTraceFILE; /** * String to prepend to debug output * @var string|0 */ static public $yyTracePrompt; /** * @var int */ public $yyidx; /* Index of top element in stack */ /** * @var int */ public $yyerrcnt; /* Shifts left before out of the error */ /** * @var array */ public $yystack = array(); /* The parser's stack */ /** * For tracing shifts, the names of all terminals and nonterminals * are required. The following table supplies these names * @var array */ static public $yyTokenName = array( '$', 'PHPCODE', 'COMMENTSTART', 'COMMENTEND', 'PI', 'SUBPATTERN', 'CODE', 'PATTERN', 'QUOTE', 'error', 'start', 'lexfile', 'declare', 'rules', 'declarations', 'processing_instructions', 'pattern_declarations', 'subpattern', 'rule', 'rule_subpattern', ); /** * For tracing reduce actions, the names of all rules are required. * @var array */ static public $yyRuleName = array( /* 0 */ "start ::= lexfile", /* 1 */ "lexfile ::= declare rules", /* 2 */ "lexfile ::= declare PHPCODE rules", /* 3 */ "lexfile ::= PHPCODE declare rules", /* 4 */ "lexfile ::= PHPCODE declare PHPCODE rules", /* 5 */ "declare ::= COMMENTSTART declarations COMMENTEND", /* 6 */ "declarations ::= processing_instructions pattern_declarations", /* 7 */ "processing_instructions ::= PI SUBPATTERN", /* 8 */ "processing_instructions ::= PI CODE", /* 9 */ "processing_instructions ::= processing_instructions PI SUBPATTERN", /* 10 */ "processing_instructions ::= processing_instructions PI CODE", /* 11 */ "pattern_declarations ::= PATTERN subpattern", /* 12 */ "pattern_declarations ::= pattern_declarations PATTERN subpattern", /* 13 */ "rules ::= COMMENTSTART rule COMMENTEND", /* 14 */ "rules ::= COMMENTSTART PI SUBPATTERN rule COMMENTEND", /* 15 */ "rules ::= COMMENTSTART rule COMMENTEND PHPCODE", /* 16 */ "rules ::= COMMENTSTART PI SUBPATTERN rule COMMENTEND PHPCODE", /* 17 */ "rules ::= rules COMMENTSTART rule COMMENTEND", /* 18 */ "rules ::= rules PI SUBPATTERN COMMENTSTART rule COMMENTEND", /* 19 */ "rules ::= rules COMMENTSTART rule COMMENTEND PHPCODE", /* 20 */ "rules ::= rules COMMENTSTART PI SUBPATTERN rule COMMENTEND PHPCODE", /* 21 */ "rule ::= rule_subpattern CODE", /* 22 */ "rule ::= rule rule_subpattern CODE", /* 23 */ "rule_subpattern ::= QUOTE", /* 24 */ "rule_subpattern ::= SUBPATTERN", /* 25 */ "rule_subpattern ::= rule_subpattern QUOTE", /* 26 */ "rule_subpattern ::= rule_subpattern SUBPATTERN", /* 27 */ "subpattern ::= QUOTE", /* 28 */ "subpattern ::= SUBPATTERN", /* 29 */ "subpattern ::= subpattern QUOTE", /* 30 */ "subpattern ::= subpattern SUBPATTERN", ); /** * This function returns the symbolic name associated with a token * value. * @param int * @return string */ function tokenName($tokenType) { if ($tokenType === 0) { return 'End of Input'; } if ($tokenType > 0 && $tokenType < count(self::$yyTokenName)) { return self::$yyTokenName[$tokenType]; } else { return "Unknown"; } } /** * The following function deletes the value associated with a * symbol. The symbol can be either a terminal or nonterminal. * @param int the symbol code * @param mixed the symbol's value */ static function yy_destructor($yymajor, $yypminor) { switch ($yymajor) { /* Here is inserted the actions which take place when a ** terminal or non-terminal is destroyed. This can happen ** when the symbol is popped from the stack during a ** reduce or during error processing or when a parser is ** being destroyed before it is finished parsing. ** ** Note: during a reduce, the only symbols destroyed are those ** which appear on the RHS of the rule, but which are not used ** inside the C code. */ default: break; /* If no destructor action specified: do nothing */ } } /** * Pop the parser's stack once. * * If there is a destructor routine associated with the token which * is popped from the stack, then call it. * * Return the major token number for the symbol popped. * @param PHP_LexerGenerator_ParseryyParser * @return int */ function yy_pop_parser_stack() { if (!count($this->yystack)) { return; } $yytos = array_pop($this->yystack); if (self::$yyTraceFILE && $this->yyidx >= 0) { fwrite(self::$yyTraceFILE, self::$yyTracePrompt . 'Popping ' . self::$yyTokenName[$yytos->major] . "\n"); } $yymajor = $yytos->major; self::yy_destructor($yymajor, $yytos->minor); $this->yyidx--; return $yymajor; } /** * Deallocate and destroy a parser. Destructors are all called for * all stack elements before shutting the parser down. */ function __destruct() { while ($this->yyidx >= 0) { $this->yy_pop_parser_stack(); } if (is_resource(self::$yyTraceFILE)) { fclose(self::$yyTraceFILE); } } /** * Based on the current state and parser stack, get a list of all * possible lookahead tokens * @param int * @return array */ function yy_get_expected_tokens($token) { $state = $this->yystack[$this->yyidx]->stateno; $expected = self::$yyExpectedTokens[$state]; if (in_array($token, self::$yyExpectedTokens[$state], true)) { return $expected; } $stack = $this->yystack; $yyidx = $this->yyidx; do { $yyact = $this->yy_find_shift_action($token); if ($yyact >= self::YYNSTATE && $yyact < self::YYNSTATE + self::YYNRULE) { // reduce action $done = 0; do { if ($done++ == 100) { $this->yyidx = $yyidx; $this->yystack = $stack; // too much recursion prevents proper detection // so give up return array_unique($expected); } $yyruleno = $yyact - self::YYNSTATE; $this->yyidx -= self::$yyRuleInfo[$yyruleno]['rhs']; $nextstate = $this->yy_find_reduce_action( $this->yystack[$this->yyidx]->stateno, self::$yyRuleInfo[$yyruleno]['lhs']); if (isset(self::$yyExpectedTokens[$nextstate])) { $expected += self::$yyExpectedTokens[$nextstate]; if (in_array($token, self::$yyExpectedTokens[$nextstate], true)) { $this->yyidx = $yyidx; $this->yystack = $stack; return array_unique($expected); } } if ($nextstate < self::YYNSTATE) { // we need to shift a non-terminal $this->yyidx++; $x = new PHP_LexerGenerator_ParseryyStackEntry; $x->stateno = $nextstate; $x->major = self::$yyRuleInfo[$yyruleno]['lhs']; $this->yystack[$this->yyidx] = $x; continue 2; } elseif ($nextstate == self::YYNSTATE + self::YYNRULE + 1) { $this->yyidx = $yyidx; $this->yystack = $stack; // the last token was just ignored, we can't accept // by ignoring input, this is in essence ignoring a // syntax error! return array_unique($expected); } elseif ($nextstate === self::YY_NO_ACTION) { $this->yyidx = $yyidx; $this->yystack = $stack; // input accepted, but not shifted (I guess) return $expected; } else { $yyact = $nextstate; } } while (true); } break; } while (true); return array_unique($expected); } /** * Based on the parser state and current parser stack, determine whether * the lookahead token is possible. * * The parser will convert the token value to an error token if not. This * catches some unusual edge cases where the parser would fail. * @param int * @return bool */ function yy_is_expected_token($token) { if ($token === 0) { return true; // 0 is not part of this } $state = $this->yystack[$this->yyidx]->stateno; if (in_array($token, self::$yyExpectedTokens[$state], true)) { return true; } $stack = $this->yystack; $yyidx = $this->yyidx; do { $yyact = $this->yy_find_shift_action($token); if ($yyact >= self::YYNSTATE && $yyact < self::YYNSTATE + self::YYNRULE) { // reduce action $done = 0; do { if ($done++ == 100) { $this->yyidx = $yyidx; $this->yystack = $stack; // too much recursion prevents proper detection // so give up return true; } $yyruleno = $yyact - self::YYNSTATE; $this->yyidx -= self::$yyRuleInfo[$yyruleno]['rhs']; $nextstate = $this->yy_find_reduce_action( $this->yystack[$this->yyidx]->stateno, self::$yyRuleInfo[$yyruleno]['lhs']); if (isset(self::$yyExpectedTokens[$nextstate]) && in_array($token, self::$yyExpectedTokens[$nextstate], true)) { $this->yyidx = $yyidx; $this->yystack = $stack; return true; } if ($nextstate < self::YYNSTATE) { // we need to shift a non-terminal $this->yyidx++; $x = new PHP_LexerGenerator_ParseryyStackEntry; $x->stateno = $nextstate; $x->major = self::$yyRuleInfo[$yyruleno]['lhs']; $this->yystack[$this->yyidx] = $x; continue 2; } elseif ($nextstate == self::YYNSTATE + self::YYNRULE + 1) { $this->yyidx = $yyidx; $this->yystack = $stack; if (!$token) { // end of input: this is valid return true; } // the last token was just ignored, we can't accept // by ignoring input, this is in essence ignoring a // syntax error! return false; } elseif ($nextstate === self::YY_NO_ACTION) { $this->yyidx = $yyidx; $this->yystack = $stack; // input accepted, but not shifted (I guess) return true; } else { $yyact = $nextstate; } } while (true); } break; } while (true); return true; } /** * Find the appropriate action for a parser given the terminal * look-ahead token iLookAhead. * * If the look-ahead token is YYNOCODE, then check to see if the action is * independent of the look-ahead. If it is, return the action, otherwise * return YY_NO_ACTION. * @param int The look-ahead token */ function yy_find_shift_action($iLookAhead) { $stateno = $this->yystack[$this->yyidx]->stateno; /* if ($this->yyidx < 0) return self::YY_NO_ACTION; */ if (!isset(self::$yy_shift_ofst[$stateno])) { // no shift actions return self::$yy_default[$stateno]; } $i = self::$yy_shift_ofst[$stateno]; if ($i === self::YY_SHIFT_USE_DFLT) { return self::$yy_default[$stateno]; } if ($iLookAhead == self::YYNOCODE) { return self::YY_NO_ACTION; } $i += $iLookAhead; if ($i < 0 || $i >= self::YY_SZ_ACTTAB || self::$yy_lookahead[$i] != $iLookAhead) { if (count(self::$yyFallback) && $iLookAhead < count(self::$yyFallback) && ($iFallback = self::$yyFallback[$iLookAhead]) != 0) { if (self::$yyTraceFILE) { fwrite(self::$yyTraceFILE, self::$yyTracePrompt . "FALLBACK " . self::$yyTokenName[$iLookAhead] . " => " . self::$yyTokenName[$iFallback] . "\n"); } return $this->yy_find_shift_action($iFallback); } return self::$yy_default[$stateno]; } else { return self::$yy_action[$i]; } } /** * Find the appropriate action for a parser given the non-terminal * look-ahead token $iLookAhead. * * If the look-ahead token is self::YYNOCODE, then check to see if the action is * independent of the look-ahead. If it is, return the action, otherwise * return self::YY_NO_ACTION. * @param int Current state number * @param int The look-ahead token */ function yy_find_reduce_action($stateno, $iLookAhead) { /* $stateno = $this->yystack[$this->yyidx]->stateno; */ if (!isset(self::$yy_reduce_ofst[$stateno])) { return self::$yy_default[$stateno]; } $i = self::$yy_reduce_ofst[$stateno]; if ($i == self::YY_REDUCE_USE_DFLT) { return self::$yy_default[$stateno]; } if ($iLookAhead == self::YYNOCODE) { return self::YY_NO_ACTION; } $i += $iLookAhead; if ($i < 0 || $i >= self::YY_SZ_ACTTAB || self::$yy_lookahead[$i] != $iLookAhead) { return self::$yy_default[$stateno]; } else { return self::$yy_action[$i]; } } /** * Perform a shift action. * @param int The new state to shift in * @param int The major token to shift in * @param mixed the minor token to shift in */ function yy_shift($yyNewState, $yyMajor, $yypMinor) { $this->yyidx++; if ($this->yyidx >= self::YYSTACKDEPTH) { $this->yyidx--; if (self::$yyTraceFILE) { fprintf(self::$yyTraceFILE, "%sStack Overflow!\n", self::$yyTracePrompt); } while ($this->yyidx >= 0) { $this->yy_pop_parser_stack(); } /* Here code is inserted which will execute if the parser ** stack ever overflows */ return; } $yytos = new PHP_LexerGenerator_ParseryyStackEntry; $yytos->stateno = $yyNewState; $yytos->major = $yyMajor; $yytos->minor = $yypMinor; array_push($this->yystack, $yytos); if (self::$yyTraceFILE && $this->yyidx > 0) { fprintf(self::$yyTraceFILE, "%sShift %d\n", self::$yyTracePrompt, $yyNewState); fprintf(self::$yyTraceFILE, "%sStack:", self::$yyTracePrompt); for($i = 1; $i <= $this->yyidx; $i++) { fprintf(self::$yyTraceFILE, " %s", self::$yyTokenName[$this->yystack[$i]->major]); } fwrite(self::$yyTraceFILE,"\n"); } } /** * The following table contains information about every rule that * is used during the reduce. * *
     * array(
     *  array(
     *   int $lhs;         Symbol on the left-hand side of the rule
     *   int $nrhs;     Number of right-hand side symbols in the rule
     *  ),...
     * );
     * 
*/ static public $yyRuleInfo = array( array( 'lhs' => 10, 'rhs' => 1 ), array( 'lhs' => 11, 'rhs' => 2 ), array( 'lhs' => 11, 'rhs' => 3 ), array( 'lhs' => 11, 'rhs' => 3 ), array( 'lhs' => 11, 'rhs' => 4 ), array( 'lhs' => 12, 'rhs' => 3 ), array( 'lhs' => 14, 'rhs' => 2 ), array( 'lhs' => 15, 'rhs' => 2 ), array( 'lhs' => 15, 'rhs' => 2 ), array( 'lhs' => 15, 'rhs' => 3 ), array( 'lhs' => 15, 'rhs' => 3 ), array( 'lhs' => 16, 'rhs' => 2 ), array( 'lhs' => 16, 'rhs' => 3 ), array( 'lhs' => 13, 'rhs' => 3 ), array( 'lhs' => 13, 'rhs' => 5 ), array( 'lhs' => 13, 'rhs' => 4 ), array( 'lhs' => 13, 'rhs' => 6 ), array( 'lhs' => 13, 'rhs' => 4 ), array( 'lhs' => 13, 'rhs' => 6 ), array( 'lhs' => 13, 'rhs' => 5 ), array( 'lhs' => 13, 'rhs' => 7 ), array( 'lhs' => 18, 'rhs' => 2 ), array( 'lhs' => 18, 'rhs' => 3 ), array( 'lhs' => 19, 'rhs' => 1 ), array( 'lhs' => 19, 'rhs' => 1 ), array( 'lhs' => 19, 'rhs' => 2 ), array( 'lhs' => 19, 'rhs' => 2 ), array( 'lhs' => 17, 'rhs' => 1 ), array( 'lhs' => 17, 'rhs' => 1 ), array( 'lhs' => 17, 'rhs' => 2 ), array( 'lhs' => 17, 'rhs' => 2 ), ); /** * The following table contains a mapping of reduce action to method name * that handles the reduction. * * If a rule is not set, it has no handler. */ static public $yyReduceMap = array( 1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 6 => 6, 7 => 7, 8 => 7, 9 => 9, 10 => 9, 11 => 11, 12 => 12, 13 => 13, 14 => 14, 15 => 15, 16 => 16, 17 => 17, 18 => 18, 19 => 19, 20 => 20, 21 => 21, 22 => 22, 23 => 23, 24 => 24, 25 => 25, 26 => 26, 27 => 27, 28 => 28, 29 => 29, 30 => 30, ); /* Beginning here are the reduction cases. A typical example ** follows: ** #line ** function yy_r0($yymsp){ ... } // User supplied code ** #line */ #line 266 "LexerGenerator\Parser.y" function yy_r1(){ fwrite($this->out, ' private $_yy_state = 1; private $_yy_stack = array(); function yylex() { return $this->{\'yylex\' . $this->_yy_state}(); } function yypushstate($state) { array_push($this->_yy_stack, $this->_yy_state); $this->_yy_state = $state; } function yypopstate() { $this->_yy_state = array_pop($this->_yy_stack); } function yybegin($state) { $this->_yy_state = $state; } '); foreach ($this->yystack[$this->yyidx + 0]->minor as $rule) { $this->outputRules($rule['rules'], $rule['statename']); if ($rule['code']) { fwrite($this->out, $rule['code']); } } } #line 1159 "LexerGenerator\Parser.php" #line 300 "LexerGenerator\Parser.y" function yy_r2(){ fwrite($this->out, ' private $_yy_state = 1; private $_yy_stack = array(); function yylex() { return $this->{\'yylex\' . $this->_yy_state}(); } function yypushstate($state) { array_push($this->_yy_stack, $this->_yy_state); $this->_yy_state = $state; } function yypopstate() { $this->_yy_state = array_pop($this->_yy_stack); } function yybegin($state) { $this->_yy_state = $state; } '); if (strlen($this->yystack[$this->yyidx + -1]->minor)) { fwrite($this->out, $this->yystack[$this->yyidx + -1]->minor); } foreach ($this->yystack[$this->yyidx + 0]->minor as $rule) { $this->outputRules($rule['rules'], $rule['statename']); if ($rule['code']) { fwrite($this->out, $rule['code']); } } } #line 1198 "LexerGenerator\Parser.php" #line 337 "LexerGenerator\Parser.y" function yy_r3(){ if (strlen($this->yystack[$this->yyidx + -2]->minor)) { fwrite($this->out, $this->yystack[$this->yyidx + -2]->minor); } fwrite($this->out, ' private $_yy_state = 1; private $_yy_stack = array(); function yylex() { return $this->{\'yylex\' . $this->_yy_state}(); } function yypushstate($state) { array_push($this->_yy_stack, $this->_yy_state); $this->_yy_state = $state; } function yypopstate() { $this->_yy_state = array_pop($this->_yy_stack); } function yybegin($state) { $this->_yy_state = $state; } '); foreach ($this->yystack[$this->yyidx + 0]->minor as $rule) { $this->outputRules($rule['rules'], $rule['statename']); if ($rule['code']) { fwrite($this->out, $rule['code']); } } } #line 1237 "LexerGenerator\Parser.php" #line 374 "LexerGenerator\Parser.y" function yy_r4(){ if (strlen($this->yystack[$this->yyidx + -3]->minor)) { fwrite($this->out, $this->yystack[$this->yyidx + -3]->minor); } fwrite($this->out, ' private $_yy_state = 1; private $_yy_stack = array(); function yylex() { return $this->{\'yylex\' . $this->_yy_state}(); } function yypushstate($state) { array_push($this->_yy_stack, $this->_yy_state); $this->_yy_state = $state; } function yypopstate() { $this->_yy_state = array_pop($this->_yy_stack); } function yybegin($state) { $this->_yy_state = $state; } '); if (strlen($this->yystack[$this->yyidx + -1]->minor)) { fwrite($this->out, $this->yystack[$this->yyidx + -1]->minor); } foreach ($this->yystack[$this->yyidx + 0]->minor as $rule) { $this->outputRules($rule['rules'], $rule['statename']); if ($rule['code']) { fwrite($this->out, $rule['code']); } } } #line 1279 "LexerGenerator\Parser.php" #line 415 "LexerGenerator\Parser.y" function yy_r5(){ $this->_retvalue = $this->yystack[$this->yyidx + -1]->minor; $this->patterns = $this->yystack[$this->yyidx + -1]->minor['patterns']; } #line 1285 "LexerGenerator\Parser.php" #line 420 "LexerGenerator\Parser.y" function yy_r6(){ $expected = array( 'counter' => true, 'input' => true, 'token' => true, 'value' => true, 'line' => true, ); foreach ($this->yystack[$this->yyidx + -1]->minor as $pi) { if (isset($expected[$pi['pi']])) { unset($expected[$pi['pi']]); continue; } if (count($expected)) { throw new Exception('Processing Instructions "' . implode(', ', array_keys($expected)) . '" must be defined'); } } $expected = array( 'counter' => true, 'input' => true, 'token' => true, 'value' => true, 'line' => true, ); foreach ($this->yystack[$this->yyidx + -1]->minor as $pi) { if (isset($expected[$pi['pi']])) { $this->{$pi['pi']} = $pi['definition']; continue; } $this->error('Unknown processing instruction %' . $pi['pi'] . ', should be one of "' . implode(', ', array_keys($expected)) . '"'); } $this->_retvalue = array('patterns' => $this->yystack[$this->yyidx + 0]->minor, 'pis' => $this->yystack[$this->yyidx + -1]->minor); } #line 1322 "LexerGenerator\Parser.php" #line 456 "LexerGenerator\Parser.y" function yy_r7(){ $this->_retvalue = array(array('pi' => $this->yystack[$this->yyidx + -1]->minor, 'definition' => $this->yystack[$this->yyidx + 0]->minor)); } #line 1327 "LexerGenerator\Parser.php" #line 462 "LexerGenerator\Parser.y" function yy_r9(){ $this->_retvalue = $this->yystack[$this->yyidx + -2]->minor; $this->_retvalue[] = array('pi' => $this->yystack[$this->yyidx + -1]->minor, 'definition' => $this->yystack[$this->yyidx + 0]->minor); } #line 1333 "LexerGenerator\Parser.php" #line 471 "LexerGenerator\Parser.y" function yy_r11(){ $this->_retvalue = array($this->yystack[$this->yyidx + -1]->minor => $this->yystack[$this->yyidx + 0]->minor); } #line 1338 "LexerGenerator\Parser.php" #line 474 "LexerGenerator\Parser.y" function yy_r12(){ $this->_retvalue = $this->yystack[$this->yyidx + -2]->minor; if (isset($this->_retvalue[$this->yystack[$this->yyidx + -1]->minor])) { throw new Exception('Pattern "' . $this->yystack[$this->yyidx + -1]->minor . '" is already defined as "' . $this->_retvalue[$this->yystack[$this->yyidx + -1]->minor] . '", cannot redefine as "' . $this->yystack[$this->yyidx + 0]->minor->string . '"'); } $this->_retvalue[$this->yystack[$this->yyidx + -1]->minor] = $this->yystack[$this->yyidx + 0]->minor; } #line 1348 "LexerGenerator\Parser.php" #line 483 "LexerGenerator\Parser.y" function yy_r13(){ $this->_retvalue = array(array('rules' => $this->yystack[$this->yyidx + -1]->minor, 'code' => '', 'statename' => '')); } #line 1353 "LexerGenerator\Parser.php" #line 486 "LexerGenerator\Parser.y" function yy_r14(){ if ($this->yystack[$this->yyidx + -3]->minor != 'statename') { throw new Exception('Error: only %statename processing instruction ' . 'is allowed in rule sections'); } $this->_retvalue = array(array('rules' => $this->yystack[$this->yyidx + -1]->minor, 'code' => '', 'statename' => $this->yystack[$this->yyidx + -2]->minor)); } #line 1362 "LexerGenerator\Parser.php" #line 493 "LexerGenerator\Parser.y" function yy_r15(){ $this->_retvalue = array(array('rules' => $this->yystack[$this->yyidx + -2]->minor, 'code' => $this->yystack[$this->yyidx + 0]->minor, 'statename' => '')); } #line 1367 "LexerGenerator\Parser.php" #line 496 "LexerGenerator\Parser.y" function yy_r16(){ if ($this->yystack[$this->yyidx + -4]->minor != 'statename') { throw new Exception('Error: only %statename processing instruction ' . 'is allowed in rule sections'); } $this->_retvalue = array(array('rules' => $this->yystack[$this->yyidx + -2]->minor, 'code' => $this->yystack[$this->yyidx + 0]->minor, 'statename' => $this->yystack[$this->yyidx + -3]->minor)); } #line 1376 "LexerGenerator\Parser.php" #line 503 "LexerGenerator\Parser.y" function yy_r17(){ $this->_retvalue = $this->yystack[$this->yyidx + -3]->minor; $this->_retvalue[] = array('rules' => $this->yystack[$this->yyidx + -1]->minor, 'code' => '', 'statename' => ''); } #line 1382 "LexerGenerator\Parser.php" #line 507 "LexerGenerator\Parser.y" function yy_r18(){ if ($this->yystack[$this->yyidx + -4]->minor != 'statename') { throw new Exception('Error: only %statename processing instruction ' . 'is allowed in rule sections'); } $this->_retvalue = $this->yystack[$this->yyidx + -5]->minor; $this->_retvalue[] = array('rules' => $this->yystack[$this->yyidx + -1]->minor, 'code' => '', 'statename' => $this->yystack[$this->yyidx + -3]->minor); } #line 1392 "LexerGenerator\Parser.php" #line 515 "LexerGenerator\Parser.y" function yy_r19(){ $this->_retvalue = $this->yystack[$this->yyidx + -4]->minor; $this->_retvalue[] = array('rules' => $this->yystack[$this->yyidx + -2]->minor, 'code' => $this->yystack[$this->yyidx + 0]->minor, 'statename' => ''); } #line 1398 "LexerGenerator\Parser.php" #line 519 "LexerGenerator\Parser.y" function yy_r20(){ if ($this->yystack[$this->yyidx + -4]->minor != 'statename') { throw new Exception('Error: only %statename processing instruction ' . 'is allowed in rule sections'); } $this->_retvalue = $this->yystack[$this->yyidx + -6]->minor; $this->_retvalue[] = array('rules' => $this->yystack[$this->yyidx + -2]->minor, 'code' => $this->yystack[$this->yyidx + 0]->minor, 'statename' => $this->yystack[$this->yyidx + -3]->minor); } #line 1408 "LexerGenerator\Parser.php" #line 528 "LexerGenerator\Parser.y" function yy_r21(){ if (@preg_match('/' . $this->yystack[$this->yyidx + -1]->minor[0] . '/', '')) { $this->error('Rule "' . $this->yystack[$this->yyidx + -1]->minor[2] . '" can match the empty string, this will break lexing'); } $this->_retvalue = array(array('pattern' => $this->yystack[$this->yyidx + -1]->minor[1], 'code' => $this->yystack[$this->yyidx + 0]->minor, 'subpatterns' => $this->yystack[$this->yyidx + -1]->minor[3])); } #line 1416 "LexerGenerator\Parser.php" #line 534 "LexerGenerator\Parser.y" function yy_r22(){ $this->_retvalue = $this->yystack[$this->yyidx + -2]->minor; if (@preg_match('/' . $this->yystack[$this->yyidx + -1]->minor[0] . '/', '')) { $this->error('Rule "' . $this->yystack[$this->yyidx + -1]->minor[2] . '" can match the empty string, this will break lexing'); } $this->_retvalue[] = array('pattern' => $this->yystack[$this->yyidx + -1]->minor[1], 'code' => $this->yystack[$this->yyidx + 0]->minor, 'subpatterns' => $this->yystack[$this->yyidx + -1]->minor[3]); } #line 1425 "LexerGenerator\Parser.php" #line 542 "LexerGenerator\Parser.y" function yy_r23(){ $this->_retvalue = array( preg_quote($this->yystack[$this->yyidx + 0]->minor, '/'), str_replace(array('\\', '"'), array('\\\\', '\\"'), preg_quote($this->yystack[$this->yyidx + 0]->minor, '/')), '"' . str_replace('"', '\"', $this->yystack[$this->yyidx + 0]->minor) . '"', 0); } #line 1433 "LexerGenerator\Parser.php" #line 548 "LexerGenerator\Parser.y" function yy_r24(){ if (!isset($this->patterns[$this->yystack[$this->yyidx + 0]->minor])) { $this->error('Undefined pattern "' . $this->yystack[$this->yyidx + 0]->minor . '" used in rules'); throw new Exception('Undefined pattern "' . $this->yystack[$this->yyidx + 0]->minor . '" used in rules'); } $this->_retvalue = array($this->patterns[$this->yystack[$this->yyidx + 0]->minor]['pattern'], $this->patterns[$this->yystack[$this->yyidx + 0]->minor]->string, $this->yystack[$this->yyidx + 0]->minor, $this->patterns[$this->yystack[$this->yyidx + 0]->minor]['subpatterns']); } #line 1442 "LexerGenerator\Parser.php" #line 555 "LexerGenerator\Parser.y" function yy_r25(){ $this->_retvalue = array( $this->yystack[$this->yyidx + -1]->minor[0] . preg_quote($this->yystack[$this->yyidx + 0]->minor, '/'), $this->yystack[$this->yyidx + -1]->minor[1] . str_replace(array('\\', '"'), array('\\\\', '\\"'), preg_quote($this->yystack[$this->yyidx + 0]->minor, '/')), $this->yystack[$this->yyidx + -1]->minor[2] . ' "' . str_replace('"', '\"', $this->yystack[$this->yyidx + 0]->minor) . '"', $this->yystack[$this->yyidx + -1]->minor[3]); } #line 1450 "LexerGenerator\Parser.php" #line 561 "LexerGenerator\Parser.y" function yy_r26(){ if (!isset($this->patterns[$this->yystack[$this->yyidx + 0]->minor])) { $this->error('Undefined pattern "' . $this->yystack[$this->yyidx + 0]->minor . '" used in rules'); throw new Exception('Undefined pattern "' . $this->yystack[$this->yyidx + 0]->minor . '" used in rules'); } $this->_retvalue = array($this->yystack[$this->yyidx + -1]->minor[0] . $this->patterns[$this->yystack[$this->yyidx + 0]->minor]['pattern'], $this->yystack[$this->yyidx + -1]->minor[1] . $this->patterns[$this->yystack[$this->yyidx + 0]->minor]->string, $this->yystack[$this->yyidx + -1]->minor[2] . ' ' . $this->yystack[$this->yyidx + 0]->minor, $this->yystack[$this->yyidx + -1]->minor[3] + $this->patterns[$this->yystack[$this->yyidx + 0]->minor]['subpatterns']); } #line 1460 "LexerGenerator\Parser.php" #line 570 "LexerGenerator\Parser.y" function yy_r27(){ $this->_retvalue = new PHP_LexerGenerator_ParseryyToken(str_replace(array('\\', '"'), array('\\\\', '\\"'), preg_quote($this->yystack[$this->yyidx + 0]->minor, '/')), array( 'pattern' => preg_quote($this->yystack[$this->yyidx + 0]->minor, '/'), 'subpatterns' => 0)); } #line 1466 "LexerGenerator\Parser.php" #line 574 "LexerGenerator\Parser.y" function yy_r28(){ $this->_retvalue = $this->_validatePattern($this->yystack[$this->yyidx + 0]->minor); } #line 1471 "LexerGenerator\Parser.php" #line 577 "LexerGenerator\Parser.y" function yy_r29(){ $this->_retvalue = new PHP_LexerGenerator_ParseryyToken($this->yystack[$this->yyidx + -1]->minor->string . str_replace(array('\\', '"'), array('\\\\', '\\"'), preg_quote($this->yystack[$this->yyidx + 0]->minor, '/')), array( 'pattern' => $this->yystack[$this->yyidx + -1]->minor['pattern'] . preg_quote($this->yystack[$this->yyidx + 0]->minor, '/'), 'subpatterns' => $this->yystack[$this->yyidx + -1]->minor['subpatterns'])); } #line 1477 "LexerGenerator\Parser.php" #line 581 "LexerGenerator\Parser.y" function yy_r30(){ $x = $this->_validatePattern($this->yystack[$this->yyidx + 0]->minor); $this->_retvalue = new PHP_LexerGenerator_ParseryyToken($this->yystack[$this->yyidx + -1]->minor->string . $x->string, array( 'pattern' => $this->yystack[$this->yyidx + -1]->minor['pattern'] . $x['pattern'], 'subpatterns' => $x['subpatterns'] + $this->yystack[$this->yyidx + -1]->minor['subpatterns'])); } #line 1485 "LexerGenerator\Parser.php" /** * placeholder for the left hand side in a reduce operation. * * For a parser with a rule like this: *
     * rule(A) ::= B. { A = 1; }
     * 
* * The parser will translate to something like: * * * function yy_r0(){$this->_retvalue = 1;} * */ private $_retvalue; /** * Perform a reduce action and the shift that must immediately * follow the reduce. * * For a rule such as: * *
     * A ::= B blah C. { dosomething(); }
     * 
* * This function will first call the action, if any, ("dosomething();" in our * example), and then it will pop three states from the stack, * one for each entry on the right-hand side of the expression * (B, blah, and C in our example rule), and then push the result of the action * back on to the stack with the resulting state reduced to (as described in the .out * file) * @param int Number of the rule by which to reduce */ function yy_reduce($yyruleno) { //int $yygoto; /* The next state */ //int $yyact; /* The next action */ //mixed $yygotominor; /* The LHS of the rule reduced */ //PHP_LexerGenerator_ParseryyStackEntry $yymsp; /* The top of the parser's stack */ //int $yysize; /* Amount to pop the stack */ $yymsp = $this->yystack[$this->yyidx]; if (self::$yyTraceFILE && $yyruleno >= 0 && $yyruleno < count(self::$yyRuleName)) { fprintf(self::$yyTraceFILE, "%sReduce (%d) [%s].\n", self::$yyTracePrompt, $yyruleno, self::$yyRuleName[$yyruleno]); } $this->_retvalue = $yy_lefthand_side = null; if (array_key_exists($yyruleno, self::$yyReduceMap)) { // call the action $this->_retvalue = null; $this->{'yy_r' . self::$yyReduceMap[$yyruleno]}(); $yy_lefthand_side = $this->_retvalue; } $yygoto = self::$yyRuleInfo[$yyruleno]['lhs']; $yysize = self::$yyRuleInfo[$yyruleno]['rhs']; $this->yyidx -= $yysize; for($i = $yysize; $i; $i--) { // pop all of the right-hand side parameters array_pop($this->yystack); } $yyact = $this->yy_find_reduce_action($this->yystack[$this->yyidx]->stateno, $yygoto); if ($yyact < self::YYNSTATE) { /* If we are not debugging and the reduce action popped at least ** one element off the stack, then we can push the new element back ** onto the stack here, and skip the stack overflow test in yy_shift(). ** That gives a significant speed improvement. */ if (!self::$yyTraceFILE && $yysize) { $this->yyidx++; $x = new PHP_LexerGenerator_ParseryyStackEntry; $x->stateno = $yyact; $x->major = $yygoto; $x->minor = $yy_lefthand_side; $this->yystack[$this->yyidx] = $x; } else { $this->yy_shift($yyact, $yygoto, $yy_lefthand_side); } } elseif ($yyact == self::YYNSTATE + self::YYNRULE + 1) { $this->yy_accept(); } } /** * The following code executes when the parse fails * * Code from %parse_fail is inserted here */ function yy_parse_failed() { if (self::$yyTraceFILE) { fprintf(self::$yyTraceFILE, "%sFail!\n", self::$yyTracePrompt); } while ($this->yyidx >= 0) { $this->yy_pop_parser_stack(); } /* Here code is inserted which will be executed whenever the ** parser fails */ } /** * The following code executes when a syntax error first occurs. * * %syntax_error code is inserted here * @param int The major type of the error token * @param mixed The minor type of the error token */ function yy_syntax_error($yymajor, $TOKEN) { #line 70 "LexerGenerator\Parser.y" echo "Syntax Error on line " . $this->lex->line . ": token '" . $this->lex->value . "' while parsing rule:"; foreach ($this->yystack as $entry) { echo $this->tokenName($entry->major) . ' '; } foreach ($this->yy_get_expected_tokens($yymajor) as $token) { $expect[] = self::$yyTokenName[$token]; } throw new Exception('Unexpected ' . $this->tokenName($yymajor) . '(' . $TOKEN . '), expected one of: ' . implode(',', $expect)); #line 1610 "LexerGenerator\Parser.php" } /** * The following is executed when the parser accepts * * %parse_accept code is inserted here */ function yy_accept() { if (self::$yyTraceFILE) { fprintf(self::$yyTraceFILE, "%sAccept!\n", self::$yyTracePrompt); } while ($this->yyidx >= 0) { $stack = $this->yy_pop_parser_stack(); } /* Here code is inserted which will be executed whenever the ** parser accepts */ } /** * The main parser program. * * The first argument is the major token number. The second is * the token value string as scanned from the input. * * @param int the token number * @param mixed the token value * @param mixed any extra arguments that should be passed to handlers */ function doParse($yymajor, $yytokenvalue) { // $yyact; /* The parser action. */ // $yyendofinput; /* True if we are at the end of input */ $yyerrorhit = 0; /* True if yymajor has invoked an error */ /* (re)initialize the parser, if necessary */ if ($this->yyidx === null || $this->yyidx < 0) { /* if ($yymajor == 0) return; // not sure why this was here... */ $this->yyidx = 0; $this->yyerrcnt = -1; $x = new PHP_LexerGenerator_ParseryyStackEntry; $x->stateno = 0; $x->major = 0; $this->yystack = array(); array_push($this->yystack, $x); } $yyendofinput = ($yymajor==0); if (self::$yyTraceFILE) { fprintf(self::$yyTraceFILE, "%sInput %s\n", self::$yyTracePrompt, self::$yyTokenName[$yymajor]); } do { $yyact = $this->yy_find_shift_action($yymajor); if ($yymajor < self::YYERRORSYMBOL && !$this->yy_is_expected_token($yymajor)) { // force a syntax error $yyact = self::YY_ERROR_ACTION; } if ($yyact < self::YYNSTATE) { $this->yy_shift($yyact, $yymajor, $yytokenvalue); $this->yyerrcnt--; if ($yyendofinput && $this->yyidx >= 0) { $yymajor = 0; } else { $yymajor = self::YYNOCODE; } } elseif ($yyact < self::YYNSTATE + self::YYNRULE) { $this->yy_reduce($yyact - self::YYNSTATE); } elseif ($yyact == self::YY_ERROR_ACTION) { if (self::$yyTraceFILE) { fprintf(self::$yyTraceFILE, "%sSyntax Error!\n", self::$yyTracePrompt); } if (self::YYERRORSYMBOL) { /* A syntax error has occurred. ** The response to an error depends upon whether or not the ** grammar defines an error token "ERROR". ** ** This is what we do if the grammar does define ERROR: ** ** * Call the %syntax_error function. ** ** * Begin popping the stack until we enter a state where ** it is legal to shift the error symbol, then shift ** the error symbol. ** ** * Set the error count to three. ** ** * Begin accepting and shifting new tokens. No new error ** processing will occur until three tokens have been ** shifted successfully. ** */ if ($this->yyerrcnt < 0) { $this->yy_syntax_error($yymajor, $yytokenvalue); } $yymx = $this->yystack[$this->yyidx]->major; if ($yymx == self::YYERRORSYMBOL || $yyerrorhit ){ if (self::$yyTraceFILE) { fprintf(self::$yyTraceFILE, "%sDiscard input token %s\n", self::$yyTracePrompt, self::$yyTokenName[$yymajor]); } $this->yy_destructor($yymajor, $yytokenvalue); $yymajor = self::YYNOCODE; } else { while ($this->yyidx >= 0 && $yymx != self::YYERRORSYMBOL && ($yyact = $this->yy_find_shift_action(self::YYERRORSYMBOL)) >= self::YYNSTATE ){ $this->yy_pop_parser_stack(); } if ($this->yyidx < 0 || $yymajor==0) { $this->yy_destructor($yymajor, $yytokenvalue); $this->yy_parse_failed(); $yymajor = self::YYNOCODE; } elseif ($yymx != self::YYERRORSYMBOL) { $u2 = 0; $this->yy_shift($yyact, self::YYERRORSYMBOL, $u2); } } $this->yyerrcnt = 3; $yyerrorhit = 1; } else { /* YYERRORSYMBOL is not defined */ /* This is what we do if the grammar does not define ERROR: ** ** * Report an error message, and throw away the input token. ** ** * If the input token is $, then fail the parse. ** ** As before, subsequent error messages are suppressed until ** three input tokens have been successfully shifted. */ if ($this->yyerrcnt <= 0) { $this->yy_syntax_error($yymajor, $yytokenvalue); } $this->yyerrcnt = 3; $this->yy_destructor($yymajor, $yytokenvalue); if ($yyendofinput) { $this->yy_parse_failed(); } $yymajor = self::YYNOCODE; } } else { $this->yy_accept(); $yymajor = self::YYNOCODE; } } while ($yymajor != self::YYNOCODE && $this->yyidx >= 0); } }