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Directive	Local Value
IP Address	89.40.16.97
System	Linux server.atelieruldeit.ro 3.10.0-1160.el7.x86_64 #1 SMP Mon Oct 19 16:18:59 UTC 2020 x86_64
User	tbf
PHP Version	7.3.33
Software	Apache
Doc root	Writable

Edit File : rebuildParsers.php \| Size : 8.15 KB
<?php $grammarFileToName = [ __DIR__ . '/php5.y' => 'Php5', __DIR__ . '/php7.y' => 'Php7', ]; $tokensFile = __DIR__ . '/tokens.y'; $tokensTemplate = __DIR__ . '/tokens.template'; $skeletonFile = __DIR__ . '/parser.template'; $tmpGrammarFile = __DIR__ . '/tmp_parser.phpy'; $tmpResultFile = __DIR__ . '/tmp_parser.php'; $resultDir = __DIR__ . '/../lib/PhpParser/Parser'; $tokensResultsFile = $resultDir . '/Tokens.php'; $kmyacc = getenv('KMYACC'); if (!$kmyacc) { // Use phpyacc from dev dependencies by default. $kmyacc = __DIR__ . '/../vendor/bin/phpyacc'; } $options = array_flip($argv); $optionDebug = isset($options['--debug']); $optionKeepTmpGrammar = isset($options['--keep-tmp-grammar']); /////////////////////////////// /// Utility regex constants /// /////////////////////////////// const LIB = '(?(DEFINE) (?<singleQuotedString>\'[^\\\\\']+(?:\\\\.[^\\\\\']+)+\') (?<doubleQuotedString>"[^\\\\"]+(?:\\\\.[^\\\\"]+)+") (?<string>(?&singleQuotedString)\|(?&doubleQuotedString)) (?<comment>/\[^]+(?:\(?!/)[^]+)+\/) (?<code>\{[^\'"/{}]+(?:(?:(?&string)\|(?&comment)\|(?&code)\|/)[^\'"/{}]+)+}) )'; const PARAMS = '\[(?<params>[^[\]]+(?:\[(?&params)\][^[\]]+)+)\]'; const ARGS = '\((?<args>[^()]+(?:\((?&args)\)[^()]+)+)\)'; /////////////////// /// Main script /// /////////////////// $tokens = file_get_contents($tokensFile); foreach ($grammarFileToName as $grammarFile => $name) { echo "Building temporary $name grammar file.\n"; $grammarCode = file_get_contents($grammarFile); $grammarCode = str_replace('%tokens', $tokens, $grammarCode); $grammarCode = resolveNodes($grammarCode); $grammarCode = resolveMacros($grammarCode); $grammarCode = resolveStackAccess($grammarCode); file_put_contents($tmpGrammarFile, $grammarCode); $additionalArgs = $optionDebug ? '-t -v' : ''; echo "Building $name parser.\n"; $output = execCmd("$kmyacc $additionalArgs -m $skeletonFile -p $name $tmpGrammarFile"); $resultCode = file_get_contents($tmpResultFile); $resultCode = removeTrailingWhitespace($resultCode); ensureDirExists($resultDir); file_put_contents("$resultDir/$name.php", $resultCode); unlink($tmpResultFile); echo "Building token definition.\n"; $output = execCmd("$kmyacc -m $tokensTemplate $tmpGrammarFile"); rename($tmpResultFile, $tokensResultsFile); if (!$optionKeepTmpGrammar) { unlink($tmpGrammarFile); } } /////////////////////////////// /// Preprocessing functions /// /////////////////////////////// function resolveNodes($code) { return preg_replace_callback( '~\b(?<name>[A-Z][a-zA-Z_\\\\]++)\s' . PARAMS . '~', function($matches) { // recurse $matches['params'] = resolveNodes($matches['params']); $params = magicSplit( '(?:' . PARAMS . '\|' . ARGS . ')(SKIP)(FAIL)\|,', $matches['params'] ); $paramCode = ''; foreach ($params as $param) { $paramCode .= $param . ', '; } return 'new ' . $matches['name'] . '(' . $paramCode . 'attributes())'; }, $code ); } function resolveMacros($code) { return preg_replace_callback( '~\b(?<!::\|->)(?!array\()(?<name>[a-z][A-Za-z]++)' . ARGS . '~', function($matches) { // recurse $matches['args'] = resolveMacros($matches['args']); $name = $matches['name']; $args = magicSplit( '(?:' . PARAMS . '\|' . ARGS . ')(SKIP)(FAIL)\|,', $matches['args'] ); if ('attributes' === $name) { assertArgs(0, $args, $name); return '$this->startAttributeStack[#1] + $this->endAttributes'; } if ('stackAttributes' === $name) { assertArgs(1, $args, $name); return '$this->startAttributeStack[' . $args[0] . ']' . ' + $this->endAttributeStack[' . $args[0] . ']'; } if ('init' === $name) { return '$$ = array(' . implode(', ', $args) . ')'; } if ('push' === $name) { assertArgs(2, $args, $name); return $args[0] . '[] = ' . $args[1] . '; $$ = ' . $args[0]; } if ('pushNormalizing' === $name) { assertArgs(2, $args, $name); return 'if (is_array(' . $args[1] . ')) { $$ = array_merge(' . $args[0] . ', ' . $args[1] . '); }' . ' else { ' . $args[0] . '[] = ' . $args[1] . '; $$ = ' . $args[0] . '; }'; } if ('toArray' == $name) { assertArgs(1, $args, $name); return 'is_array(' . $args[0] . ') ? ' . $args[0] . ' : array(' . $args[0] . ')'; } if ('parseVar' === $name) { assertArgs(1, $args, $name); return 'substr(' . $args[0] . ', 1)'; } if ('parseEncapsed' === $name) { assertArgs(3, $args, $name); return 'foreach (' . $args[0] . ' as $s) { if ($s instanceof Node\Scalar\EncapsedStringPart) {' . ' $s->value = Node\Scalar\String_::parseEscapeSequences($s->value, ' . $args[1] . ', ' . $args[2] . '); } }'; } if ('makeNop' === $name) { assertArgs(3, $args, $name); return '$startAttributes = ' . $args[1] . ';' . ' if (isset($startAttributes[\'comments\']))' . ' { ' . $args[0] . ' = new Stmt\Nop($startAttributes + ' . $args[2] . '); }' . ' else { ' . $args[0] . ' = null; }'; } if ('makeZeroLengthNop' == $name) { assertArgs(2, $args, $name); return '$startAttributes = ' . $args[1] . ';' . ' if (isset($startAttributes[\'comments\']))' . ' { ' . $args[0] . ' = new Stmt\Nop($this->createCommentNopAttributes($startAttributes[\'comments\'])); }' . ' else { ' . $args[0] . ' = null; }'; } if ('strKind' === $name) { assertArgs(1, $args, $name); return '(' . $args[0] . '[0] === "\'" \|\| (' . $args[0] . '[1] === "\'" && ' . '(' . $args[0] . '[0] === \'b\' \|\| ' . $args[0] . '[0] === \'B\')) ' . '? Scalar\String_::KIND_SINGLE_QUOTED : Scalar\String_::KIND_DOUBLE_QUOTED)'; } if ('prependLeadingComments' === $name) { assertArgs(1, $args, $name); return '$attrs = $this->startAttributeStack[#1]; $stmts = ' . $args[0] . '; ' . 'if (!empty($attrs[\'comments\'])) {' . '$stmts[0]->setAttribute(\'comments\', ' . 'array_merge($attrs[\'comments\'], $stmts[0]->getAttribute(\'comments\', []))); }'; } return $matches[0]; }, $code ); } function assertArgs($num, $args, $name) { if ($num != count($args)) { die('Wrong argument count for ' . $name . '().'); } } function resolveStackAccess($code) { $code = preg_replace('/\$\d+/', '$this->semStack[$0]', $code); $code = preg_replace('/#(\d+)/', '$$1', $code); return $code; } function removeTrailingWhitespace($code) { $lines = explode("\n", $code); $lines = array_map('rtrim', $lines); return implode("\n", $lines); } function ensureDirExists($dir) { if (!is_dir($dir)) { mkdir($dir, 0777, true); } } function execCmd($cmd) { $output = trim(shell_exec("$cmd 2>&1")); if ($output !== "") { echo "> " . $cmd . "\n"; echo $output; } return $output; } ////////////////////////////// /// Regex helper functions /// ////////////////////////////// function regex($regex) { return '~' . LIB . '(?:' . str_replace('~', '\~', $regex) . ')~'; } function magicSplit($regex, $string) { $pieces = preg_split(regex('(?:(?&string)\|(?&comment)\|(?&code))(SKIP)(FAIL)\|' . $regex), $string); foreach ($pieces as &$piece) { $piece = trim($piece); } if ($pieces === ['']) { return []; } return $pieces; } Back

Edit File : rebuildParsers.php | Size : 8.15 KB

<?php

$grammarFileToName = [
    __DIR__ . '/php5.y' => 'Php5',
    __DIR__ . '/php7.y' => 'Php7',
];

$tokensFile     = __DIR__ . '/tokens.y';
$tokensTemplate = __DIR__ . '/tokens.template';
$skeletonFile   = __DIR__ . '/parser.template';
$tmpGrammarFile = __DIR__ . '/tmp_parser.phpy';
$tmpResultFile  = __DIR__ . '/tmp_parser.php';
$resultDir = __DIR__ . '/../lib/PhpParser/Parser';
$tokensResultsFile = $resultDir . '/Tokens.php';

$kmyacc = getenv('KMYACC');
if (!$kmyacc) {
    // Use phpyacc from dev dependencies by default.
    $kmyacc = __DIR__ . '/../vendor/bin/phpyacc';
}

$options = array_flip($argv);
$optionDebug = isset($options['--debug']);
$optionKeepTmpGrammar = isset($options['--keep-tmp-grammar']);

///////////////////////////////
/// Utility regex constants ///
///////////////////////////////

const LIB = '(?(DEFINE)
    (?<singleQuotedString>\'[^\\\\\']*+(?:\\\\.[^\\\\\']*+)*+\')
    (?<doubleQuotedString>"[^\\\\"]*+(?:\\\\.[^\\\\"]*+)*+")
    (?<string>(?&singleQuotedString)|(?&doubleQuotedString))
    (?<comment>/\*[^*]*+(?:\*(?!/)[^*]*+)*+\*/)
    (?<code>\{[^\'"/{}]*+(?:(?:(?&string)|(?&comment)|(?&code)|/)[^\'"/{}]*+)*+})
)';

const PARAMS = '\[(?<params>[^[\]]*+(?:\[(?&params)\][^[\]]*+)*+)\]';
const ARGS   = '$(?<args>[^()]*+(?:\((?&args)$[^()]*+)*+)\)';

///////////////////
/// Main script ///
///////////////////

$tokens = file_get_contents($tokensFile);

foreach ($grammarFileToName as $grammarFile => $name) {
    echo "Building temporary $name grammar file.\n";

$grammarCode = file_get_contents($grammarFile);
    $grammarCode = str_replace('%tokens', $tokens, $grammarCode);

$grammarCode = resolveNodes($grammarCode);
    $grammarCode = resolveMacros($grammarCode);
    $grammarCode = resolveStackAccess($grammarCode);

file_put_contents($tmpGrammarFile, $grammarCode);

$additionalArgs = $optionDebug ? '-t -v' : '';

echo "Building $name parser.\n";
    $output = execCmd("$kmyacc $additionalArgs -m $skeletonFile -p $name $tmpGrammarFile");

$resultCode = file_get_contents($tmpResultFile);
    $resultCode = removeTrailingWhitespace($resultCode);

ensureDirExists($resultDir);
    file_put_contents("$resultDir/$name.php", $resultCode);
    unlink($tmpResultFile);

echo "Building token definition.\n";
    $output = execCmd("$kmyacc -m $tokensTemplate $tmpGrammarFile");
    rename($tmpResultFile, $tokensResultsFile);

if (!$optionKeepTmpGrammar) {
        unlink($tmpGrammarFile);
    }
}

///////////////////////////////
/// Preprocessing functions ///
///////////////////////////////

function resolveNodes($code) {
    return preg_replace_callback(
        '~\b(?<name>[A-Z][a-zA-Z_\\\\]++)\s*' . PARAMS . '~',
        function($matches) {
            // recurse
            $matches['params'] = resolveNodes($matches['params']);

$params = magicSplit(
                '(?:' . PARAMS . '|' . ARGS . ')(*SKIP)(*FAIL)|,',
                $matches['params']
            );

$paramCode = '';
            foreach ($params as $param) {
                $paramCode .= $param . ', ';
            }

return 'new ' . $matches['name'] . '(' . $paramCode . 'attributes())';
        },
        $code
    );
}

function resolveMacros($code) {
    return preg_replace_callback(
        '~\b(?<!::|->)(?!array\()(?<name>[a-z][A-Za-z]++)' . ARGS . '~',
        function($matches) {
            // recurse
            $matches['args'] = resolveMacros($matches['args']);

$name = $matches['name'];
            $args = magicSplit(
                '(?:' . PARAMS . '|' . ARGS . ')(*SKIP)(*FAIL)|,',
                $matches['args']
            );

if ('attributes' === $name) {
                assertArgs(0, $args, $name);
                return '$this->startAttributeStack[#1] + $this->endAttributes';
            }

if ('stackAttributes' === $name) {
                assertArgs(1, $args, $name);
                return '$this->startAttributeStack[' . $args[0] . ']'
                     . ' + $this->endAttributeStack[' . $args[0] . ']';
            }

if ('init' === $name) {
                return '$$ = array(' . implode(', ', $args) . ')';
            }

if ('push' === $name) {
                assertArgs(2, $args, $name);

return $args[0] . '[] = ' . $args[1] . '; $$ = ' . $args[0];
            }

if ('pushNormalizing' === $name) {
                assertArgs(2, $args, $name);

return 'if (is_array(' . $args[1] . ')) { $$ = array_merge(' . $args[0] . ', ' . $args[1] . '); }'
                     . ' else { ' . $args[0] . '[] = ' . $args[1] . '; $$ = ' . $args[0] . '; }';
            }

if ('toArray' == $name) {
                assertArgs(1, $args, $name);

return 'is_array(' . $args[0] . ') ? ' . $args[0] . ' : array(' . $args[0] . ')';
            }

if ('parseVar' === $name) {
                assertArgs(1, $args, $name);

return 'substr(' . $args[0] . ', 1)';
            }

if ('parseEncapsed' === $name) {
                assertArgs(3, $args, $name);

return 'foreach (' . $args[0] . ' as $s) { if ($s instanceof Node\Scalar\EncapsedStringPart) {'
                     . ' $s->value = Node\Scalar\String_::parseEscapeSequences($s->value, ' . $args[1] . ', ' . $args[2] . '); } }';
            }

if ('makeNop' === $name) {
                assertArgs(3, $args, $name);

return '$startAttributes = ' . $args[1] . ';'
                . ' if (isset($startAttributes[\'comments\']))'
                . ' { ' . $args[0] . ' = new Stmt\Nop($startAttributes + ' . $args[2] . '); }'
                . ' else { ' . $args[0] . ' = null; }';
            }

if ('makeZeroLengthNop' == $name) {
                assertArgs(2, $args, $name);

return '$startAttributes = ' . $args[1] . ';'
                    . ' if (isset($startAttributes[\'comments\']))'
                    . ' { ' . $args[0] . ' = new Stmt\Nop($this->createCommentNopAttributes($startAttributes[\'comments\'])); }'
                    . ' else { ' . $args[0] . ' = null; }';
            }

if ('strKind' === $name) {
                assertArgs(1, $args, $name);

return '(' . $args[0] . '[0] === "\'" || (' . $args[0] . '[1] === "\'" && '
                     . '(' . $args[0] . '[0] === \'b\' || ' . $args[0] . '[0] === \'B\')) '
                     . '? Scalar\String_::KIND_SINGLE_QUOTED : Scalar\String_::KIND_DOUBLE_QUOTED)';
            }

if ('prependLeadingComments' === $name) {
                assertArgs(1, $args, $name);

return '$attrs = $this->startAttributeStack[#1]; $stmts = ' . $args[0] . '; '
                . 'if (!empty($attrs[\'comments\'])) {'
                . '$stmts[0]->setAttribute(\'comments\', '
                . 'array_merge($attrs[\'comments\'], $stmts[0]->getAttribute(\'comments\', []))); }';
            }

return $matches[0];
        },
        $code
    );
}

function assertArgs($num, $args, $name) {
    if ($num != count($args)) {
        die('Wrong argument count for ' . $name . '().');
    }
}

function resolveStackAccess($code) {
    $code = preg_replace('/\$\d+/', '$this->semStack[$0]', $code);
    $code = preg_replace('/#(\d+)/', '$$1', $code);
    return $code;
}

function removeTrailingWhitespace($code) {
    $lines = explode("\n", $code);
    $lines = array_map('rtrim', $lines);
    return implode("\n", $lines);
}

function ensureDirExists($dir) {
    if (!is_dir($dir)) {
        mkdir($dir, 0777, true);
    }
}

function execCmd($cmd) {
    $output = trim(shell_exec("$cmd 2>&1"));
    if ($output !== "") {
        echo "> " . $cmd . "\n";
        echo $output;
    }
    return $output;
}

//////////////////////////////
/// Regex helper functions ///
//////////////////////////////

function regex($regex) {
    return '~' . LIB . '(?:' . str_replace('~', '\~', $regex) . ')~';
}

function magicSplit($regex, $string) {
    $pieces = preg_split(regex('(?:(?&string)|(?&comment)|(?&code))(*SKIP)(*FAIL)|' . $regex), $string);

foreach ($pieces as &$piece) {
        $piece = trim($piece);
    }

if ($pieces === ['']) {
        return [];
    }

return $pieces;
}

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