diff options
Diffstat (limited to 'vendor/nikic/php-parser/grammar/phpyLang.php')
| -rw-r--r-- | vendor/nikic/php-parser/grammar/phpyLang.php | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/vendor/nikic/php-parser/grammar/phpyLang.php b/vendor/nikic/php-parser/grammar/phpyLang.php deleted file mode 100644 index 663c2a144..000000000 --- a/vendor/nikic/php-parser/grammar/phpyLang.php +++ /dev/null @@ -1,184 +0,0 @@ -<?php - -/////////////////////////////// -/// Utility regex constants /// -/////////////////////////////// - -const LIB = '(?(DEFINE) - (?<singleQuotedString>\'[^\\\\\']*+(?:\\\\.[^\\\\\']*+)*+\') - (?<doubleQuotedString>"[^\\\\"]*+(?:\\\\.[^\\\\"]*+)*+") - (?<string>(?&singleQuotedString)|(?&doubleQuotedString)) - (?<comment>/\*[^*]*+(?:\*(?!/)[^*]*+)*+\*/) - (?<code>\{[^\'"/{}]*+(?:(?:(?&string)|(?&comment)|(?&code)|/)[^\'"/{}]*+)*+}) -)'; - -const PARAMS = '\[(?<params>[^[\]]*+(?:\[(?¶ms)\][^[\]]*+)*+)\]'; -const ARGS = '\((?<args>[^()]*+(?:\((?&args)\)[^()]*+)*+)\)'; - -/////////////////////////////// -/// Preprocessing functions /// -/////////////////////////////// - -function preprocessGrammar($code) { - $code = resolveNodes($code); - $code = resolveMacros($code); - $code = resolveStackAccess($code); - - return $code; -} - -function resolveNodes($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 ('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", $lines); -} - -////////////////////////////// -/// Regex helper functions /// -////////////////////////////// - -function regex($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; -} |