+++ /dev/null
-(* $Id$
- * ----------------------------------------------------------------------
- * PXP: The polymorphic XML parser for Objective Caml.
- * Copyright by Gerd Stolpmann. See LICENSE for details.
- *)
-
-(**********************************************************************)
-(* *)
-(* Pxp_document: *)
-(* Object model of the document/element instances *)
-(* *)
-(**********************************************************************)
-
-
-(* ======================================================================
- * OVERVIEW
- *
- * class type node ............. The common class type of the nodes of
- * the element tree. Nodes are either
- * elements (inner nodes) or data nodes
- * (leaves)
- * class type extension ........ The minimal properties of the so-called
- * extensions of the nodes: Nodes can be
- * customized by applying a class parameter
- * that adds methods/values to nodes.
- * class data_impl : node ...... Implements data nodes.
- * class element_impl : node ... Implements element nodes
- * class document .............. A document is an element with some additional
- * properties
- *
- * ======================================================================
- *
- * THE STRUCTURE OF NODE TREES:
- *
- * Every node except the root node has a parent node. The parent node is
- * always an element, because data nodes never contain other nodes.
- * In the other direction, element nodes may have children; both elements
- * and data nodes are possible as children.
- * Every node knows its parent (if any) and all its children (if any);
- * the linkage is maintained in both directions. A node without a parent
- * is called a root.
- * It is not possible that a node is the child of two nodes (two different nodes
- * or a multiple child of the same node).
- * You can break the connection between a node and its parent; the method
- * "delete" performs this operations and deletes the node from the parent's
- * list of children. The node is now a root, for itself and for all
- * subordinate nodes. In this context, the node is also called an orphan,
- * because it has lost its parent (this is a bit misleading because the
- * parent is not always the creator of a node).
- * In order to simplify complex operations, you can also set the list of
- * children of an element. Nodes that have been children before are unchanged;
- * new nodes are added (and the linkage is set up), nodes no more occurring
- * in the list are handled if they have been deleted.
- * If you try to add a node that is not a root (either by an "add" or by a
- * "set" operation) the operation fails.
- *
- * CREATION OF NODES
- *
- * The class interface supports creation of nodes by cloning a so-called
- * exemplar. The idea is that it is sometimes useful to implement different
- * element types by different classes, and to implement this by looking up
- * exemplars.
- * Imagine you have three element types A, B, and C, and three classes
- * a, b, and c implementing the node interface (for example, by providing
- * different extensions, see below). The XML parser can be configured to
- * have a lookup table
- * { A --> a0, B --> b0, C --> c0 }
- * where a0, b0, c0 are exemplars of the classes a, b, and c, i.e. empty
- * objects belonging to these classes. If the parser finds an instance of
- * A, it looks up the exemplar a0 of A and clones it (actually, the method
- * "create_element" performs this for elements, and "create_data" for data
- * nodes). Clones belong to the same class as the original nodes, so the
- * instances of the elements have the same classes as the configured
- * exemplars.
- * Note: This technique assumes that the interface of all exemplars is the
- * same!
- *
- * THE EXTENSION
- *
- * The class type node and all its implementations have a class parameter
- * 'ext which must at least fulfil the properties of the class type "extension".
- * The idea is that you can add properties, for example:
- *
- * class my_extension =
- * object
- * (* minimal properties required by class type "extension": *)
- * method clone = ...
- * method node = ...
- * method set_node n = ...
- * (* here my own methods: *)
- * method do_this_and_that ...
- * end
- *
- * class my_element_impl = [ my_extension ] element_impl
- * class my_data_impl = [ my_extension ] data_impl
- *
- * The whole XML parser is parameterized with 'ext, so your extension is
- * visible everywhere (this is the reason why extensibility is solved by
- * parametric polymorphism and not by inclusive polymorphism (subtyping)).
- *
- *
- * SOME COMPLICATED TYPE EXPRESSIONS
- *
- * Sometimes the following type expressions turn out to be necessary:
- *
- * 'a node extension as 'a
- * This is the type of an extension that belongs to a node that
- * has an extension that is the same as we started with.
- *
- * 'a extension node as 'a
- * This is the type of a node that has an extension that belongs to a
- * node of the type we started with.
- *
- *
- * DOCUMENTS
- * ...
- *
- * ======================================================================
- *
- * SIMPLE USAGE: ...
- *)
-
-
-open Pxp_dtd
-
-
-type node_type =
- (* The basic and most important node types:
- * - T_element element_type is the type of element nodes
- * - T_data is the type of text data nodes
- * By design of the parser, neither CDATA sections nor entity references
- * are represented in the node tree; so there are no types for them.
- *)
- T_element of string
- | T_data
-
- (* The following types are extensions to my original design. They have mainly
- * been added to simplify the implementation of standards (such as
- * XPath) that require that nodes of these types are included into the
- * main document tree.
- * There are options (see Pxp_yacc) forcing the parser to insert such
- * nodes; in this case, the nodes are actually element nodes serving
- * as wrappers for the additional data structures. The options are:
- * enable_super_root_node, enable_pinstr_nodes, enable_comment_nodes.
- * By default, such nodes are not created.
- *)
- | T_super_root
- | T_pinstr of string (* The string is the target of the PI *)
- | T_comment
-
- (* The following types are fully virtual. This means that it is impossible
- * to make the parser insert such nodes. However, these types might be
- * practical when defining views on the tree.
- * Note that the list of virtual node types will be extended if necessary.
- *)
- | T_none
- | T_attribute of string (* The string is the name of the attribute *)
- | T_namespace of string (* The string is the namespace prefix *)
-;;
-
-
-class type [ 'node ] extension =
- object ('self)
- method clone : 'self
- (* "clone" should return an exact deep copy of the object. *)
- method node : 'node
- (* "node" returns the corresponding node of this extension. This method
- * intended to return exactly what previously has been set by "set_node".
- *)
- method set_node : 'node -> unit
- (* "set_node" is invoked once the extension is associated to a new
- * node object.
- *)
- end
-;;
-
-
-class type [ 'ext ] node =
- object ('self)
- constraint 'ext = 'ext node #extension
-
- method extension : 'ext
- (* Return the extension of this node: *)
-
- method delete : unit
- (* Delete this node from the parent's list of sub nodes. This node gets
- * orphaned.
- * 'delete' does nothing if this node does not have a parent.
- *)
-
- method parent : 'ext node
- (* Get the parent, or raise Not_found if this node is an orphan. *)
-
- method root : 'ext node
- (* Get the direct or indirect parent that does not have a parent itself,
- * i.e. the root of the tree.
- *)
-
- method orphaned_clone : 'self
- (* return an exact clone of this element and all sub nodes (deep copy)
- * except string values which are shared by this node and the clone.
- * The other exception is that the clone has no parent (i.e. it is now
- * a root).
- *)
-
- method orphaned_flat_clone : 'self
- (* return a clone of this element where all subnodes are omitted.
- * The type of the node, and the attributes are the same as in the
- * original node.
- * The clone has no parent.
- *)
-
- method add_node : ?force:bool -> 'ext node -> unit
- (* Append new sub nodes -- mainly used by the parser itself, but
- * of course open for everybody. If an element is added, it must be
- * an orphan (i.e. does not have a parent node); and after addition
- * *this* node is the new parent.
- * The method performs some basic validation checks if the current node
- * has a regular expression as content model, or is EMPTY. You can
- * turn these checks off by passing ~force:true to the method.
- *)
-
- method add_pinstr : proc_instruction -> unit
- (* Add a processing instruction to the set of processing instructions of
- * this node. Usually only elements contain processing instructions.
- *)
-
- method pinstr : string -> proc_instruction list
- (* Get all processing instructions with the passed name *)
-
- method pinstr_names : string list
- (* Get a list of all names of processing instructions *)
-
- method node_position : int
- (* Returns the position of this node among all children of the parent
- * node. Positions are counted from 0.
- * Raises Not_found if the node is the root node.
- *)
-
- method node_path : int list
- (* Returns the list of node positions of the ancestors of this node,
- * including this node. The first list element is the node position
- * of this child of the root, and the last list element is the
- * node position of this node.
- * Returns [] if the node is the root node.
- *)
-
- method sub_nodes : 'ext node list
- (* Get the list of sub nodes *)
-
- method iter_nodes : ('ext node -> unit) -> unit
- (* iterate over the sub nodes *)
-
- method iter_nodes_sibl :
- ('ext node option -> 'ext node -> 'ext node option -> unit) -> unit
- (* Here every iteration step can also access to the previous and to the
- * following node if present.
- *)
-
- method nth_node : int -> 'ext node
- (* Returns the n-th sub node of this node, n >= 0. Raises Not_found
- * if the index is out of the valid range.
- * Note that the first invocation of this method requires additional
- * overhead.
- *)
-
- method previous_node : 'ext node
- method next_node : 'ext node
- (* Return the previous and next nodes, respectively. These methods are
- * equivalent to
- * - parent # nth_node (self # node_position - 1) and
- * - parent # nth_node (self # node_position + 1), respectively.
- *)
-
- method set_nodes : 'ext node list -> unit
- (* Set the list of sub nodes. Elements that are no longer sub nodes gets
- * orphaned, and all new elements that previously were not sub nodes
- * must have been orphaned.
- *)
-
- method data : string
- (* Get the data string of this node. For data nodes, this string is just
- * the content. For elements, this string is the concatenation of all
- * subordinate data nodes.
- *)
-
- method node_type : node_type
- (* Get the name of the element type. *)
-
- method position : (string * int * int)
- (* Return the name of the entity, the line number, and the column
- * position (byte offset) of the beginning of the element.
- * Only available if the element has been created with position
- * information.
- * Returns "?",0,0 if not available. (Note: Line number 0 is not
- * possible otherwise.)
- *)
-
- method attribute : string -> Pxp_types.att_value
- method attribute_names : string list
- method attribute_type : string -> Pxp_types.att_type
- method attributes : (string * Pxp_types.att_value) list
- (* Get a specific attribute; get the names of all attributes; get the
- * type of a specific attribute; get names and values of all attributes.
- * Only elements have attributes.
- * Note: If the DTD allows arbitrary for this element, "attribute_type"
- * raises Undeclared.
- *)
-
- method required_string_attribute : string -> string
- method required_list_attribute : string -> string list
- (* Return the attribute or fail if the attribute is not present:
- * The first version passes the value always as string back;
- * the second version always as list.
- *)
-
- method optional_string_attribute : string -> string option
- method optional_list_attribute : string -> string list
- (* Return some attribute value or return None if the attribute is not
- * present:
- * The first version passes the value always as string back;
- * the second version always as list.
- *)
-
- method id_attribute_name : string
- method id_attribute_value : string
- (* Return the name and value of the ID attribute. The methods may
- * raise Not_found if there is no ID attribute in the DTD, or no
- * ID attribute in the element, respectively.
- *)
-
- method idref_attribute_names : string list
- (* Returns the list of attribute names of IDREF or IDREFS type. *)
-
- method quick_set_attributes : (string * Pxp_types.att_value) list -> unit
- (* Sets the attributes but does not check whether they match the DTD.
- *)
-
- method attributes_as_nodes : 'ext node list
- (* Experimental feature: Return the attributes as node list. Every node
- * has type T_attribute n, and contains only the single attribute n.
- * This node list is computed on demand, so the first invocation of this
- * method will create the list, and following invocations will only
- * return the existing list.
- *)
-
- method set_comment : string option -> unit
- (* Sets the comment string; only applicable for T_comment nodes *)
-
- method comment : string option
- (* Get the comment string.
- * Returns always None for nodes with a type other than T_comment.
- *)
-
- method dtd : dtd
- (* Get the DTD. Fails if no DTD is specified (which is impossible if
- * 'create_element' or 'create_data' have been used to create this
- * object)
- *)
-
- method encoding : Pxp_types.rep_encoding
- (* Get the encoding which is always the same as the encoding of the
- * DTD. See also method 'dtd' (Note: This method fails, too, if
- * no DTD is present.)
- *)
-
- method create_element :
- ?position:(string * int * int) ->
- dtd -> node_type -> (string * string) list -> 'ext node
- (* create an "empty copy" of this element:
- * - new DTD
- * - new node type (which must not be T_data)
- * - new attribute list
- * - empty list of nodes
- *)
-
- method create_data : dtd -> string -> 'ext node
- (* create an "empty copy" of this data node: *)
-
- method local_validate :
- ?use_dfa:bool ->
- unit -> unit
- (* Check that this element conforms to the DTD.
- * Option ~use_dfa: If true, the deterministic finite automaton of
- * regexp content models is used for validation, if available.
- * Defaults to false.
- *)
-
- method keep_always_whitespace_mode : unit
- (* Normally, add_node does not accept data nodes when the DTD does not
- * allow data nodes or only whitespace ("ignorable whitespace").
- * Once you have invoked this method, ignorable whitespace is forced
- * to be included into the document.
- *)
-
- method write : Pxp_types.output_stream -> Pxp_types.encoding -> unit
- (* Write the contents of this node and the subtrees to the passed
- * output stream; the passed encoding is used. The format
- * is compact (the opposite of "pretty printing").
- *)
-
- method write_compact_as_latin1 : Pxp_types.output_stream -> unit
- (* DEPRECATED METHOD; included only to keep compatibility with
- * older versions of the parser
- *)
-
-
- (* ---------------------------------------- *)
- (* The methods 'find' and 'reset_finder' are no longer supported.
- * The functionality is provided by the configurable index object
- * (see Pxp_yacc).
- *)
-
-
- (* ---------------------------------------- *)
- (* internal methods: *)
- method internal_adopt : 'ext node option -> int -> unit
- method internal_set_pos : int -> unit
- method internal_delete : 'ext node -> unit
- method internal_init : (string * int * int) ->
- dtd -> string -> (string * string) list -> unit
- method internal_init_other : (string * int * int) ->
- dtd -> node_type -> unit
- end
-;;
-
-
-class [ 'ext ] data_impl : 'ext -> [ 'ext ] node
- (* Creation:
- * new data_impl an_extension
- * creates a new data node with the given extension and the empty string
- * as content.
- *)
-;;
-
-
-class [ 'ext ] element_impl : 'ext -> [ 'ext ] node
- (* Creation:
- * new element_impl an_extension
- * creates a new empty element node with the given extension.
- *)
-;;
-
-
-(* Attribute and namespace nodes are experimental: *)
-
-class [ 'ext ] attribute_impl :
- element:string -> name:string -> Pxp_types.att_value -> dtd -> [ 'ext ] node
-
- (* Creation:
- * new attribute_impl element_name attribute_name attribute_value dtd
- * Note that attribute nodes do intentionally not have extensions.
- *)
-
-(* Once namespaces get implemented:
-class [ 'ext ] namespace_impl :
- prefix:string -> name:string -> dtd -> [ 'ext ] node
-*)
-
-(********************************** spec *********************************)
-
-type 'ext spec
-constraint 'ext = 'ext node #extension
- (* Contains the exemplars used for the creation of new nodes
- *)
-
-
-val make_spec_from_mapping :
- ?super_root_exemplar : 'ext node ->
- ?comment_exemplar : 'ext node ->
- ?default_pinstr_exemplar : 'ext node ->
- ?pinstr_mapping : (string, 'ext node) Hashtbl.t ->
- data_exemplar: 'ext node ->
- default_element_exemplar: 'ext node ->
- element_mapping: (string, 'ext node) Hashtbl.t ->
- unit ->
- 'ext spec
- (* Specifies:
- * - For new data nodes, the ~data_exemplar must be used
- * - For new element nodes: If the element type is mentioned in the
- * ~element_mapping hash table, the exemplar found in this table is
- * used. Otherwise, the ~default_element_exemplar is used.
- * Optionally:
- * - You may also specify exemplars for super root nodes, for comments
- * and for processing instructions
- *)
-
-val make_spec_from_alist :
- ?super_root_exemplar : 'ext node ->
- ?comment_exemplar : 'ext node ->
- ?default_pinstr_exemplar : 'ext node ->
- ?pinstr_alist : (string * 'ext node) list ->
- data_exemplar: 'ext node ->
- default_element_exemplar: 'ext node ->
- element_alist: (string * 'ext node) list ->
- unit ->
- 'ext spec
- (* This is a convenience function: You can pass the mappings from
- * elements and PIs to exemplar by associative lists.
- *)
-
-val create_data_node :
- 'ext spec -> dtd -> string -> 'ext node
-val create_element_node :
- ?position:(string * int * int) ->
- 'ext spec -> dtd -> string -> (string * string) list -> 'ext node
-val create_super_root_node :
- ?position:(string * int * int) ->
- 'ext spec -> dtd -> 'ext node
-val create_comment_node :
- ?position:(string * int * int) ->
- 'ext spec -> dtd -> string -> 'ext node
-val create_pinstr_node :
- ?position:(string * int * int) ->
- 'ext spec -> dtd -> proc_instruction -> 'ext node
- (* These functions use the exemplars contained in a spec and create fresh
- * node objects from them.
- *)
-
-val create_no_node :
- ?position:(string * int * int) -> 'ext spec -> dtd -> 'ext node
- (* Creates a T_none node with limited functionality *)
-
-(*********************** Ordering of nodes ******************************)
-
-val compare : 'ext node -> 'ext node -> int
- (* Returns -1 if the first node is before the second node, or +1 if the
- * first node is after the second node, or 0 if both nodes are identical.
- * If the nodes are unrelated (do not have a common ancestor), the result
- * is undefined.
- * This test is rather slow.
- *)
-
-type 'ext ord_index
-constraint 'ext = 'ext node #extension
- (* The type of ordinal indexes *)
-
-val create_ord_index : 'ext node -> 'ext ord_index
- (* Creates an ordinal index for the subtree starting at the passed node.
- * This index assigns to every node an ordinal number (beginning with 0) such
- * that nodes are numbered upon the order of the first character in the XML
- * representation (document order).
- * Note that the index is not automatically updated when the tree is
- * modified.
- *)
-
-val ord_number : 'ext ord_index -> 'ext node -> int
- (* Returns the ordinal number of the node, or raises Not_found *)
-
-val ord_compare : 'ext ord_index -> 'ext node -> 'ext node -> int
- (* Compares two nodes like 'compare':
- * Returns -1 if the first node is before the second node, or +1 if the
- * first node is after the second node, or 0 if both nodes are identical.
- * If one of the nodes does not occur in the ordinal index, Not_found
- * is raised.
- * This test is much faster than 'compare'.
- *)
-
-
-(***************************** Iterators ********************************)
-
-val find : ?deeply:bool ->
- f:('ext node -> bool) -> 'ext node -> 'ext node
- (* Searches the first node for which the predicate f is true, and returns
- * it. Raises Not_found if there is no such node.
- * By default, ~deeply=false. In this case, only the children of the
- * passed node are searched.
- * If passing ~deeply=true, the children are searched recursively
- * (depth-first search).
- *)
-
-val find_all : ?deeply:bool ->
- f:('ext node -> bool) -> 'ext node -> 'ext node list
- (* Searches all nodes for which the predicate f is true, and returns them.
- * By default, ~deeply=false. In this case, only the children of the
- * passed node are searched.
- * If passing ~deeply=true, the children are searched recursively
- * (depth-first search).
- *)
-
-val find_element : ?deeply:bool ->
- string -> 'ext node -> 'ext node
- (* Searches the first element with the passed element type.
- * By default, ~deeply=false. In this case, only the children of the
- * passed node are searched.
- * If passing ~deeply=true, the children are searched recursively
- * (depth-first search).
- *)
-
-val find_all_elements : ?deeply:bool ->
- string -> 'ext node -> 'ext node list
- (* Searches all elements with the passed element type.
- * By default, ~deeply=false. In this case, only the children of the
- * passed node are searched.
- * If passing ~deeply=true, the children are searched recursively
- * (depth-first search).
- *)
-
-exception Skip
-val map_tree : pre:('exta node -> 'extb node) ->
- ?post:('extb node -> 'extb node) ->
- 'exta node ->
- 'extb node
- (* Traverses the passed node and all children recursively. After entering
- * a node, the function ~pre is called. The result of this function must
- * be a new node; it must not have children nor a parent (you can simply
- * pass (fun n -> n # orphaned_flat_clone) as ~pre).
- * After that, the children are processed in the same way (from left to
- * right); the results of the transformation will be added to the
- * new node as new children.
- * Now, the ~post function is invoked with this node as argument, and
- * the result is the result of the function (~post should return a root
- * node, too; if not specified, the identity is the ~post function).
- * Both ~pre and ~post may raise Skip, which causes that the node is
- * left out. If the top node is skipped, the exception Not_found is
- * raised.
- *)
-
-val map_tree_sibl :
- pre: ('exta node option -> 'exta node -> 'exta node option ->
- 'extb node) ->
- ?post:('extb node option -> 'extb node -> 'extb node option ->
- 'extb node) ->
- 'exta node ->
- 'extb node
- (* Works like map_tree, but the function ~pre and ~post have additional
- * arguments:
- * - ~pre l n r: The node n is the node to map, and l is the previous
- * node, and r is the next node (both None if not present). l and r
- * are both nodes before the transformation.
- * - ~post l n r: The node n is the node which is the result of ~pre
- * plus adding children. l and r are again the previous and the next
- * node, respectively, but after being transformed.
- *)
-
-val iter_tree : ?pre:('ext node -> unit) ->
- ?post:('ext node -> unit) ->
- 'ext node ->
- unit
- (* Iterates only instead of mapping the nodes. *)
-
-val iter_tree_sibl :
- ?pre: ('ext node option -> 'ext node -> 'ext node option -> unit) ->
- ?post:('ext node option -> 'ext node -> 'ext node option -> unit) ->
- 'ext node ->
- unit
- (* Iterates only instead of mapping the nodes. *)
-
-
-(******************************* document ********************************)
-
-
-class [ 'ext ] document :
- Pxp_types.collect_warnings ->
- object
- (* Documents: These are containers for root elements and for DTDs.
- *
- * Important invariant: A document is either empty (no root element,
- * no DTD), or it has both a root element and a DTD.
- *
- * A fresh document created by 'new' is empty.
- *)
-
- method init_xml_version : string -> unit
- (* Set the XML version string of the XML declaration. *)
-
- method init_root : 'ext node -> unit
- (* Set the root element. It is expected that the root element has
- * a DTD.
- * Note that 'init_root' checks whether the passed root element
- * has the type expected by the DTD. The check takes into account
- * that the root element might be a virtual root node.
- *)
-
- method xml_version : string
- (* Returns the XML version from the XML declaration. Returns "1.0"
- * if the declaration is missing.
- *)
-
- method xml_standalone : bool
- (* Returns whether this document is declared as being standalone.
- * This method returns the same value as 'standalone_declaration'
- * of the DTD (if there is a DTD).
- * Returns 'false' if there is no DTD.
- *)
-
- method dtd : dtd
- (* Returns the DTD of the root element.
- * Fails if there is no root element.
- *)
-
- method encoding : Pxp_types.rep_encoding
- (* Returns the string encoding of the document = the encoding of
- * the root element = the encoding of the element tree = the
- * encoding of the DTD.
- * Fails if there is no root element.
- *)
-
- method root : 'ext node
- (* Returns the root element, or fails if there is not any. *)
-
- method add_pinstr : proc_instruction -> unit
- (* Adds a processing instruction to the document container.
- * The parser does this for PIs occurring outside the DTD and outside
- * the root element.
- *)
-
- method pinstr : string -> proc_instruction list
- (* Return all PIs for a passed target string. *)
-
- method pinstr_names : string list
- (* Return all target strings of all PIs. *)
-
- method write : Pxp_types.output_stream -> Pxp_types.encoding -> unit
- (* Write the document to the passed
- * output stream; the passed encoding used. The format
- * is compact (the opposite of "pretty printing").
- * If a DTD is present, the DTD is included into the internal subset.
- *)
-
- method write_compact_as_latin1 : Pxp_types.output_stream -> unit
- (* DEPRECATED METHOD; included only to keep compatibility with
- * older versions of the parser
- *)
-
- end
-;;
-
-
-(* ======================================================================
- * History:
- *
- * $Log$
- * Revision 1.1 2000/11/17 09:57:29 lpadovan
- * Initial revision
- *
- * Revision 1.10 2000/08/30 15:47:37 gerd
- * New method node_path.
- * New function compare.
- * New type ord_index with functions.
- *
- * Revision 1.9 2000/08/26 23:27:53 gerd
- * New function: make_spec_from_alist.
- * New iterators: find, find_all, find_element, find_all_elements,
- * map_tree, map_tree_sibl, iter_tree, iter_tree_sibl.
- * New node methods: node_position, nth_node, previous_node,
- * next_node.
- * Attribute and namespace types have now a string argument:
- * the name/prefix. I hope this simplifies the handling of view nodes.
- * First implementation of view nodes: attribute_impl. The
- * method attributes_as_nodes returns the attributes wrapped into
- * T_attribute nodes which reside outside the document tree.
- *
- * Revision 1.8 2000/08/18 20:14:00 gerd
- * New node_types: T_super_root, T_pinstr, T_comment, (T_attribute),
- * (T_none), (T_namespace).
- *
- * Revision 1.7 2000/07/23 02:16:34 gerd
- * Support for DFAs.
- *
- * Revision 1.6 2000/07/16 16:34:41 gerd
- * New method 'write', the successor of 'write_compact_as_latin1'.
- *
- * Revision 1.5 2000/07/14 13:56:11 gerd
- * Added methods id_attribute_name, id_attribute_value,
- * idref_attribute_names.
- *
- * Revision 1.4 2000/07/09 17:51:14 gerd
- * Element nodes can store positions.
- *
- * Revision 1.3 2000/07/04 22:05:10 gerd
- * New functions make_spec_from_mapping, create_data_node,
- * create_element_node.
- *
- * Revision 1.2 2000/06/14 22:19:06 gerd
- * Added checks such that it is impossible to mix encodings.
- *
- * Revision 1.1 2000/05/29 23:48:38 gerd
- * Changed module names:
- * Markup_aux into Pxp_aux
- * Markup_codewriter into Pxp_codewriter
- * Markup_document into Pxp_document
- * Markup_dtd into Pxp_dtd
- * Markup_entity into Pxp_entity
- * Markup_lexer_types into Pxp_lexer_types
- * Markup_reader into Pxp_reader
- * Markup_types into Pxp_types
- * Markup_yacc into Pxp_yacc
- * See directory "compatibility" for (almost) compatible wrappers emulating
- * Markup_document, Markup_dtd, Markup_reader, Markup_types, and Markup_yacc.
- *
- * ======================================================================
- * Old logs from markup_document.mli:
- *
- * Revision 1.13 2000/05/27 19:15:08 gerd
- * Removed the method init_xml_standalone.
- *
- * Revision 1.12 2000/05/01 20:42:34 gerd
- * New method write_compact_as_latin1.
- *
- * Revision 1.11 2000/04/30 18:15:57 gerd
- * Beautifications.
- * New method keep_always_whitespace_mode.
- *
- * Revision 1.10 2000/03/11 22:58:15 gerd
- * Updated to support Markup_codewriter.
- *
- * Revision 1.9 2000/01/27 21:51:56 gerd
- * Added method 'attributes'.
- *
- * Revision 1.8 2000/01/27 21:19:07 gerd
- * Added further methods.
- *
- * Revision 1.7 1999/11/09 22:20:14 gerd
- * Removed method init_dtd from class "document". The DTD is
- * implicitly passed to the document by the root element.
- *
- * Revision 1.6 1999/09/01 22:51:40 gerd
- * Added methods to store processing instructions.
- *
- * Revision 1.5 1999/09/01 16:19:57 gerd
- * The "document" class has now a "warner" as class argument.
- *
- * Revision 1.4 1999/08/19 21:59:13 gerd
- * Added method "reset_finder".
- *
- * Revision 1.3 1999/08/19 01:08:29 gerd
- * Added method "find".
- *
- * Revision 1.2 1999/08/15 02:19:41 gerd
- * Some new explanations: That unknown elements are not rejected
- * if the DTD allows them.
- *
- * Revision 1.1 1999/08/10 00:35:51 gerd
- * Initial revision.
- *
- *
- *)