--- /dev/null
+<?php
+
+namespace PhpParser;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Stmt;
+
+abstract class PrettyPrinterAbstract
+{
+ protected $precedenceMap = array(
+ // [precedence, associativity] where for the latter -1 is %left, 0 is %nonassoc and 1 is %right
+ 'Expr_BinaryOp_Pow' => array( 0, 1),
+ 'Expr_BitwiseNot' => array( 10, 1),
+ 'Expr_PreInc' => array( 10, 1),
+ 'Expr_PreDec' => array( 10, 1),
+ 'Expr_PostInc' => array( 10, -1),
+ 'Expr_PostDec' => array( 10, -1),
+ 'Expr_UnaryPlus' => array( 10, 1),
+ 'Expr_UnaryMinus' => array( 10, 1),
+ 'Expr_Cast_Int' => array( 10, 1),
+ 'Expr_Cast_Double' => array( 10, 1),
+ 'Expr_Cast_String' => array( 10, 1),
+ 'Expr_Cast_Array' => array( 10, 1),
+ 'Expr_Cast_Object' => array( 10, 1),
+ 'Expr_Cast_Bool' => array( 10, 1),
+ 'Expr_Cast_Unset' => array( 10, 1),
+ 'Expr_ErrorSuppress' => array( 10, 1),
+ 'Expr_Instanceof' => array( 20, 0),
+ 'Expr_BooleanNot' => array( 30, 1),
+ 'Expr_BinaryOp_Mul' => array( 40, -1),
+ 'Expr_BinaryOp_Div' => array( 40, -1),
+ 'Expr_BinaryOp_Mod' => array( 40, -1),
+ 'Expr_BinaryOp_Plus' => array( 50, -1),
+ 'Expr_BinaryOp_Minus' => array( 50, -1),
+ 'Expr_BinaryOp_Concat' => array( 50, -1),
+ 'Expr_BinaryOp_ShiftLeft' => array( 60, -1),
+ 'Expr_BinaryOp_ShiftRight' => array( 60, -1),
+ 'Expr_BinaryOp_Smaller' => array( 70, 0),
+ 'Expr_BinaryOp_SmallerOrEqual' => array( 70, 0),
+ 'Expr_BinaryOp_Greater' => array( 70, 0),
+ 'Expr_BinaryOp_GreaterOrEqual' => array( 70, 0),
+ 'Expr_BinaryOp_Equal' => array( 80, 0),
+ 'Expr_BinaryOp_NotEqual' => array( 80, 0),
+ 'Expr_BinaryOp_Identical' => array( 80, 0),
+ 'Expr_BinaryOp_NotIdentical' => array( 80, 0),
+ 'Expr_BinaryOp_Spaceship' => array( 80, 0),
+ 'Expr_BinaryOp_BitwiseAnd' => array( 90, -1),
+ 'Expr_BinaryOp_BitwiseXor' => array(100, -1),
+ 'Expr_BinaryOp_BitwiseOr' => array(110, -1),
+ 'Expr_BinaryOp_BooleanAnd' => array(120, -1),
+ 'Expr_BinaryOp_BooleanOr' => array(130, -1),
+ 'Expr_BinaryOp_Coalesce' => array(140, 1),
+ 'Expr_Ternary' => array(150, -1),
+ // parser uses %left for assignments, but they really behave as %right
+ 'Expr_Assign' => array(160, 1),
+ 'Expr_AssignRef' => array(160, 1),
+ 'Expr_AssignOp_Plus' => array(160, 1),
+ 'Expr_AssignOp_Minus' => array(160, 1),
+ 'Expr_AssignOp_Mul' => array(160, 1),
+ 'Expr_AssignOp_Div' => array(160, 1),
+ 'Expr_AssignOp_Concat' => array(160, 1),
+ 'Expr_AssignOp_Mod' => array(160, 1),
+ 'Expr_AssignOp_BitwiseAnd' => array(160, 1),
+ 'Expr_AssignOp_BitwiseOr' => array(160, 1),
+ 'Expr_AssignOp_BitwiseXor' => array(160, 1),
+ 'Expr_AssignOp_ShiftLeft' => array(160, 1),
+ 'Expr_AssignOp_ShiftRight' => array(160, 1),
+ 'Expr_AssignOp_Pow' => array(160, 1),
+ 'Expr_YieldFrom' => array(165, 1),
+ 'Expr_Print' => array(168, 1),
+ 'Expr_BinaryOp_LogicalAnd' => array(170, -1),
+ 'Expr_BinaryOp_LogicalXor' => array(180, -1),
+ 'Expr_BinaryOp_LogicalOr' => array(190, -1),
+ 'Expr_Include' => array(200, -1),
+ );
+
+ protected $noIndentToken;
+ protected $docStringEndToken;
+ protected $canUseSemicolonNamespaces;
+ protected $options;
+
+ /**
+ * Creates a pretty printer instance using the given options.
+ *
+ * Supported options:
+ * * bool $shortArraySyntax = false: Whether to use [] instead of array() as the default array
+ * syntax, if the node does not specify a format.
+ *
+ * @param array $options Dictionary of formatting options
+ */
+ public function __construct(array $options = []) {
+ $this->noIndentToken = '_NO_INDENT_' . mt_rand();
+ $this->docStringEndToken = '_DOC_STRING_END_' . mt_rand();
+
+ $defaultOptions = ['shortArraySyntax' => false];
+ $this->options = $options + $defaultOptions;
+ }
+
+ /**
+ * Pretty prints an array of statements.
+ *
+ * @param Node[] $stmts Array of statements
+ *
+ * @return string Pretty printed statements
+ */
+ public function prettyPrint(array $stmts) {
+ $this->preprocessNodes($stmts);
+
+ return ltrim($this->handleMagicTokens($this->pStmts($stmts, false)));
+ }
+
+ /**
+ * Pretty prints an expression.
+ *
+ * @param Expr $node Expression node
+ *
+ * @return string Pretty printed node
+ */
+ public function prettyPrintExpr(Expr $node) {
+ return $this->handleMagicTokens($this->p($node));
+ }
+
+ /**
+ * Pretty prints a file of statements (includes the opening <?php tag if it is required).
+ *
+ * @param Node[] $stmts Array of statements
+ *
+ * @return string Pretty printed statements
+ */
+ public function prettyPrintFile(array $stmts) {
+ if (!$stmts) {
+ return "<?php\n\n";
+ }
+
+ $p = "<?php\n\n" . $this->prettyPrint($stmts);
+
+ if ($stmts[0] instanceof Stmt\InlineHTML) {
+ $p = preg_replace('/^<\?php\s+\?>\n?/', '', $p);
+ }
+ if ($stmts[count($stmts) - 1] instanceof Stmt\InlineHTML) {
+ $p = preg_replace('/<\?php$/', '', rtrim($p));
+ }
+
+ return $p;
+ }
+
+ /**
+ * Preprocesses the top-level nodes to initialize pretty printer state.
+ *
+ * @param Node[] $nodes Array of nodes
+ */
+ protected function preprocessNodes(array $nodes) {
+ /* We can use semicolon-namespaces unless there is a global namespace declaration */
+ $this->canUseSemicolonNamespaces = true;
+ foreach ($nodes as $node) {
+ if ($node instanceof Stmt\Namespace_ && null === $node->name) {
+ $this->canUseSemicolonNamespaces = false;
+ }
+ }
+ }
+
+ protected function handleMagicTokens($str) {
+ // Drop no-indent tokens
+ $str = str_replace($this->noIndentToken, '', $str);
+
+ // Replace doc-string-end tokens with nothing or a newline
+ $str = str_replace($this->docStringEndToken . ";\n", ";\n", $str);
+ $str = str_replace($this->docStringEndToken, "\n", $str);
+
+ return $str;
+ }
+
+ /**
+ * Pretty prints an array of nodes (statements) and indents them optionally.
+ *
+ * @param Node[] $nodes Array of nodes
+ * @param bool $indent Whether to indent the printed nodes
+ *
+ * @return string Pretty printed statements
+ */
+ protected function pStmts(array $nodes, $indent = true) {
+ $result = '';
+ foreach ($nodes as $node) {
+ $comments = $node->getAttribute('comments', array());
+ if ($comments) {
+ $result .= "\n" . $this->pComments($comments);
+ if ($node instanceof Stmt\Nop) {
+ continue;
+ }
+ }
+
+ $result .= "\n" . $this->p($node) . ($node instanceof Expr ? ';' : '');
+ }
+
+ if ($indent) {
+ return preg_replace('~\n(?!$|' . $this->noIndentToken . ')~', "\n ", $result);
+ } else {
+ return $result;
+ }
+ }
+
+ /**
+ * Pretty prints a node.
+ *
+ * @param Node $node Node to be pretty printed
+ *
+ * @return string Pretty printed node
+ */
+ protected function p(Node $node) {
+ return $this->{'p' . $node->getType()}($node);
+ }
+
+ protected function pInfixOp($type, Node $leftNode, $operatorString, Node $rightNode) {
+ list($precedence, $associativity) = $this->precedenceMap[$type];
+
+ return $this->pPrec($leftNode, $precedence, $associativity, -1)
+ . $operatorString
+ . $this->pPrec($rightNode, $precedence, $associativity, 1);
+ }
+
+ protected function pPrefixOp($type, $operatorString, Node $node) {
+ list($precedence, $associativity) = $this->precedenceMap[$type];
+ return $operatorString . $this->pPrec($node, $precedence, $associativity, 1);
+ }
+
+ protected function pPostfixOp($type, Node $node, $operatorString) {
+ list($precedence, $associativity) = $this->precedenceMap[$type];
+ return $this->pPrec($node, $precedence, $associativity, -1) . $operatorString;
+ }
+
+ /**
+ * Prints an expression node with the least amount of parentheses necessary to preserve the meaning.
+ *
+ * @param Node $node Node to pretty print
+ * @param int $parentPrecedence Precedence of the parent operator
+ * @param int $parentAssociativity Associativity of parent operator
+ * (-1 is left, 0 is nonassoc, 1 is right)
+ * @param int $childPosition Position of the node relative to the operator
+ * (-1 is left, 1 is right)
+ *
+ * @return string The pretty printed node
+ */
+ protected function pPrec(Node $node, $parentPrecedence, $parentAssociativity, $childPosition) {
+ $type = $node->getType();
+ if (isset($this->precedenceMap[$type])) {
+ $childPrecedence = $this->precedenceMap[$type][0];
+ if ($childPrecedence > $parentPrecedence
+ || ($parentPrecedence == $childPrecedence && $parentAssociativity != $childPosition)
+ ) {
+ return '(' . $this->p($node) . ')';
+ }
+ }
+
+ return $this->p($node);
+ }
+
+ /**
+ * Pretty prints an array of nodes and implodes the printed values.
+ *
+ * @param Node[] $nodes Array of Nodes to be printed
+ * @param string $glue Character to implode with
+ *
+ * @return string Imploded pretty printed nodes
+ */
+ protected function pImplode(array $nodes, $glue = '') {
+ $pNodes = array();
+ foreach ($nodes as $node) {
+ if (null === $node) {
+ $pNodes[] = '';
+ } else {
+ $pNodes[] = $this->p($node);
+ }
+ }
+
+ return implode($glue, $pNodes);
+ }
+
+ /**
+ * Pretty prints an array of nodes and implodes the printed values with commas.
+ *
+ * @param Node[] $nodes Array of Nodes to be printed
+ *
+ * @return string Comma separated pretty printed nodes
+ */
+ protected function pCommaSeparated(array $nodes) {
+ return $this->pImplode($nodes, ', ');
+ }
+
+ /**
+ * Signals the pretty printer that a string shall not be indented.
+ *
+ * @param string $string Not to be indented string
+ *
+ * @return string String marked with $this->noIndentToken's.
+ */
+ protected function pNoIndent($string) {
+ return str_replace("\n", "\n" . $this->noIndentToken, $string);
+ }
+
+ /**
+ * Prints reformatted text of the passed comments.
+ *
+ * @param Comment[] $comments List of comments
+ *
+ * @return string Reformatted text of comments
+ */
+ protected function pComments(array $comments) {
+ $formattedComments = [];
+
+ foreach ($comments as $comment) {
+ $formattedComments[] = $comment->getReformattedText();
+ }
+
+ return implode("\n", $formattedComments);
+ }
+}
projects / yaffs-website / blobdiff