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Showing content from https://github.com/abend0c1/rexxxmlparser below:

abend0c1/rexxxmlparser: An XML parser written in the REXX programming language. It runs on mainframes (z/OS Rexx) as well as Windows and Linux (Regina or ooRexx).

Document query/navigation API calls

getRoot()

Returns the node number of the root node. This can be used in calls requiring a node argument. In this implementation, getDocumentElement() and getRoot() are (incorrectly) synonymous - this may change, so you should use getDocumentElement() in preference to getRoot().

getDocumentElement()

Returns the node number of the document element. The document element is the topmost element node. You should use this in preference to getRoot() (see above).

getName(node)

Returns the name of the specified node.

getNodeValue(node) or getText(node)

Returns the text content of an unnamed node. A node without a name can only contain text. It cannot have attributes or children.

getAttributeCount(node)

Returns the number of attributes present on the specified node.

getAttributeMap(node)

Builds a map of the attributes of the specified node. The map can be accessed via the following variables:

Variable Content g.0ATTRIBUTE.0 The number of attributes mapped g.0ATTRIBUTE.n The name of attribute number n (in order of appearance) where n > 0 g.0ATTRIBUTE.name The value of the attribute called name

getAttributeName(node,n)

Returns the name of the nth attribute of the specified node (1 is first, 2 is second, etc).

getAttributeNames(node)

Returns a space-delimited list of the names of the attributes of the specified node.

getAttribute(node,name)

Returns the value of the attribute called name of the specified node.

getAttribute(node,n)

Returns the value of the nth attribute of the specified node (1 is first, 2 is second, etc).

setAttribute(node,name,value)

Updates the value of the attribute called 'name' of the specified node. If no attribute exists with that name, then one is created.

setAttributes(node,name1,value1,name2,value2,...)

Updates the attributes of the specified node. Zero or more name/value pairs are be specified as the arguments.

hasAttribute(node,name)

Returns 1 if the specified node has an attribute with the specified name, else 0.

getParentNode(node) or getParent(node)

Returns the node number of the specified node's parent. If the node number returned is 0, then the specified node is the root node. All nodes have a parent (except the root node).

getFirstChild(node)

Returns the node number of the specified node's first child node.

getLastChild(node)

Returns the node number of the specified node's last child node.

getChildNodes(node) or getChildren(node)

Returns a space-delimited list of node numbers of the children of the specified node. You can use this list to step through the children as follows:

children = getChildren(node)
say 'Node' node 'has' words(children) 'children'
do i = 1 to words(children)
  child = word(children,i)
  say 'Node' child 'is' getName(child)
end

getChildrenByName(node,name)

Returns a space-delimited list of node numbers of the immediate children of the specified node which are called name. Names are case-sensitive.

getElementsByTagName(node,name)

Returns a space-delimited list of node numbers of the descendants of the specified node which are called name. Names are case-sensitive.

getNextSibling(node)

Returns the node number of the specified node's next sibling node. That is, the next node sharing the same parent.

getPreviousSibling(node)

Returns the node number of the specified node's previous sibling node. That is, the previous node sharing the same parent.

getProcessingInstruction(name)

Returns the value of the Processing Instruction (PI) with the specified target name.

getProcessingInstructionList()

Returns a space-delimited list of the names of all PI target names.

getNodeType(node)

Returns a number representing the specified node's type. The possible values can be compared to the following global variables:

Variable Content g.0ELEMENT_NODE 1 g.0ATTRIBUTE_NODE 2 g.0TEXT_NODE 3 g.0CDATA_SECTION_NODE 4 g.0ENTITY_REFERENCE_NODE 5 g.0ENTITY_NODE 6 g.0PROCESSING_INSTRUCTION_NODE 7 g.0COMMENT_NODE 8 g.0DOCUMENT_NODE 9 g.0DOCUMENT_TYPE_NODE 10 g.0DOCUMENT_FRAGMENT_NODE 11 g.0NOTATION_NODE 12

Note: as this exposes internal implementation details, it is best not to use this routine. Consider using isTextNode() etc instead (see below).

isCDATA(node)

Returns 1 if the specified node is an unparsed character data (CDATA) node, else 0. CDATA nodes are used to contain content that you do not want to be treated as XML data. For example, HTML data.

isElementNode(node)

Returns 1 if the specified node is an element node, else 0.

isTextNode(node)

Returns 1 if the specified node is a text node, else 0.

isCommentNode(node)

Returns 1 if the specified node is a comment node, else 0. Note: when a document is parsed, comment nodes are ignored. This routine returns 1 iff a comment node has been inserted into the in-memory document tree by using createComment().

hasChildren(node)

Returns 1 if the specified node has one or more child nodes, else 0.

getDocType(doctype)

Gets the text of the <!DOCTYPE> prolog node.

Document creation/mutation API calls

createDocument(name)

Returns the node number of a new document node with the specified name.

createDocumentFragment(name)

Returns the node number of a new document fragment node with the specified name.

createElement(name)

Returns the node number of a new empty element node with the specified name. An element node can have child nodes.

createTextNode(data)

Returns the node number of a new text node. A text node can not have child nodes.

createCDATASection(data)

Returns the node number of a new Character Data (CDATA) node. A CDATA node can not have child nodes. CDATA nodes are used to contain content that you do not want to be treated as XML data. For example, HTML data.

createComment(data)

Returns the node number of a new comment node. A comment node can not have child nodes.

appendChild(node,parent)

Appends the specified node to the end of the list of children of the specified parent node.

insertBefore(node,refnode)

Inserts node node before the reference node refnode.

removeChild(node)

Removes the specified node from its parent and returns its node number. The removed child is now an orphan.

replaceChild(newnode,oldnode)

Replaces the old child oldnode with the new child newnode and returns the old child's node number. The old child is now an orphan.

setAttribute(node,attrname,attrvalue)

Adds or replaces the attribute called attrname on the specified node with the value attrvalue.

removeAttribute(node,attrname)

Removes the attribute called attrname from the specified node.

setDocType(doctype)

Sets the text of the <!DOCTYPE> prolog node.

cloneNode(node,[deep])

Creates a copy (a clone) of the specified node and returns its node number. If deep = 1 then all descendants of the specified node are also cloned, else only the specified node and its attributes are cloned.

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