Author: kn
Date: Wed Feb 13 22:44:10 2008
New Revision: 7362
Log:
- Added class stubs for parser and AST
Added:
experimental/Document/src/document/rst/node.php (with props)
experimental/Document/src/document/rst/nodes/
experimental/Document/src/document/rst/nodes/document.php (with props)
experimental/Document/src/document/rst/parser.php (with props)
Added: experimental/Document/src/document/rst/node.php
==============================================================================
--- experimental/Document/src/document/rst/node.php (added)
+++ experimental/Document/src/document/rst/node.php [iso-8859-1] Wed Feb 13
22:44:10 2008
@@ -1,0 +1,74 @@
+<?php
+/**
+ * File containing the ezcDocumentRstNode struct
+ *
+ * @package Document
+ * @version //autogen//
+ * @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+
+/**
+ * Struct for RST document document abstract syntax tree nodes
+ *
+ * @package Document
+ * @version //autogen//
+ * @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+class ezcDocumentRstNode extends ezcBaseStruct implements RecursiveIterator
+{
+ // Node types
+ const DOCUMENT = 0;
+ const SECTION = 1;
+ const TITLE = 2;
+ const PARAGRAPH = 3;
+ // ...
+
+ /**
+ * Node type
+ *
+ * @var int
+ */
+ public $type;
+
+ /**
+ * Child nodes
+ *
+ * @var mixed
+ */
+ public $nodes;
+
+ /**
+ * Construct RST node
+ *
+ * @ignore
+ * @param int $type
+ * @param mixed $content
+ * @param int $line
+ * @param int $position
+ * @return void
+ */
+ public function __construct( $type, array $nodes = array() )
+ {
+ $this->type = $type;
+ $this->nodes = $nodes;
+ }
+
+ /**
+ * Set state after var_export
+ *
+ * @param array $properties
+ * @return void
+ * @ignore
+ */
+ public static function __set_state( $properties )
+ {
+ return new ezcDocumentRstNode(
+ $properties['type'],
+ $properties['nodes']
+ );
+ }
+}
+
+?>
Propchange: experimental/Document/src/document/rst/node.php
------------------------------------------------------------------------------
svn:eol-style = native
Added: experimental/Document/src/document/rst/nodes/document.php
==============================================================================
--- experimental/Document/src/document/rst/nodes/document.php (added)
+++ experimental/Document/src/document/rst/nodes/document.php [iso-8859-1] Wed
Feb 13 22:44:10 2008
@@ -1,0 +1,39 @@
+<?php
+/**
+ * File containing the ezcDocumentRstDocumentNode struct
+ *
+ * @package Document
+ * @version //autogen//
+ * @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+
+/**
+ * The document AST node
+ *
+ * @package Document
+ * @version //autogen//
+ * @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+class ezcDocumentRstDocumentNode extends ezcDocumentRstNode
+{
+ /**
+ * Construct RST document node
+ *
+ * @ignore
+ * @param int $type
+ * @param mixed $content
+ * @param int $line
+ * @param int $position
+ * @return void
+ */
+ public function __construct( array $nodes = array() )
+ {
+ // Perhaps check, that only node of type section and metadata are
+ // added.
+ parent::__construct( self::DOCUMENT, $nodes );
+ }
+}
+
+?>
Propchange: experimental/Document/src/document/rst/nodes/document.php
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svn:eol-style = native
Added: experimental/Document/src/document/rst/parser.php
==============================================================================
--- experimental/Document/src/document/rst/parser.php (added)
+++ experimental/Document/src/document/rst/parser.php [iso-8859-1] Wed Feb 13
22:44:10 2008
@@ -1,0 +1,123 @@
+<?php
+/**
+ * File containing the ezcDocumentRstParser
+ *
+ * @package Document
+ * @version //autogen//
+ * @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+
+/**
+ * Parser for RST documents
+ *
+ * @TODO: Think about providing methods to add callbacks for manual handling of
+ * additional elements. This still may be done by just extending the parser.
+ *
+ * @package Document
+ * @version //autogen//
+ * @copyright Copyright (C) 2005-2008 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+class ezcDocumentRstParser
+{
+ /**
+ * Array containing simplified shift ruleset
+ *
+ * We cannot express the RST syntax as a usual grammar using a BNF. This
+ * structure contains an array with callbacks implementing the shift rules
+ * for all tokens. There may be multiple rules for one single token.
+ *
+ * The callbacks itself create syntax elements and push them to the
+ * document stack. After each push the reduction callbacks will be called
+ * for the pushed elements.
+ *
+ * The array should look like:
+ * <code>
+ * array(
+ * WHITESPACE => array(
+ * reductionMethod,
+ * ...
+ * ),
+ * ...
+ * )
+ * </code>
+ *
+ * @var array
+ */
+ protected $shifts = array(
+ ezcDocumentRstToken::WHITESPACE => array(
+ ),
+ ezcDocumentRstToken::NEWLINE => array(
+ ),
+ ezcDocumentRstToken::BACKSLASH => array(
+ 'reduceBackslash'
+ ),
+ ezcDocumentRstToken::SPECIAL_CHARS => array(
+ ),
+ ezcDocumentRstToken::TEXT_LINE => array(
+ ),
+ );
+
+ /**
+ * Array containing simplified reduce ruleset
+ *
+ * We cannot express the RST syntax as a usual grammar using a BNF. This
+ * structure implements a pseudo grammar by assigning a number of callbacks
+ * for internal methods implementing reduction rules for a detected syntax
+ * element.
+ *
+ * <code>
+ * array(
+ * end_of_file => array(
+ * 'reduceDocument'
+ * ),
+ * ...
+ * )
+ * </code>
+ *
+ * @var array
+ */
+ protected $reductions = array(
+ );
+
+ /**
+ * Contains a list of detected syntax elements.
+ *
+ * At the end of a successfull parsing process this should only contain one
+ * document syntax element. During the process it may contain a list of
+ * elements, which are up to reduction.
+ *
+ * Each element in the stack has to be an object extending from
+ * ezcDocumentRstNode, which may again contain any amount such objects.
+ * This way an abstract syntax tree is constructed.
+ *
+ * @var array
+ */
+ protected $documentStack = array();
+
+ /**
+ * List with parsed tokens.
+ *
+ * Each token which has been parsed will be removed from the list, until
+ * the list is empty.
+ *
+ * @var array
+ */
+ protected $tokens = array();
+
+ /**
+ * Construct parser
+ *
+ * Construct the parser from an array of tokens (ezcDocumentRstToken), and
+ * create a cocument out of this token array.
+ *
+ * @return void
+ */
+ public function __construct( array $tokens )
+ {
+ // @TODO: Implement
+ }
+}
+
+?>
Propchange: experimental/Document/src/document/rst/parser.php
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