SAP SXML PARSING METHODS ABEXA documentation, setup help and example usage

ARTICLE

sXML Library, Methods for Token-Based Parsing
This example demonstrates how various methods are used in token-based parsing .

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A string of XML data is parsed more than once:

In the first parsing, all data is read, as usual, in a nested loop using the methods NEXT_NODE and NEXT_ATTRIBUTES .

In the second parsing, the method PUSH_BACK is used to move the parser back to the opened element for each value node with a specific value and to read the attributes here.

The third parsing demonstrates various ways of reading XML data.

First, a specific attribute is read for an element with a specific name using GET_ATTRIBUTE_VALUE .

Then an iteration runs across all attributes of all elements (without evaluating the elements) until a specific value occurs. If the value occurs, the method CURRENT_NODE is used to move the parser to the start of the current attribute list and the list is evaluated.

Finally, the method NEXT_ATTRIBUTE_VALUE is used to read the value of each attribute as raw data saved in

Base64 format. The data is displayed only if this is successful.

In the fourth and fifth parsings, the method SKIP_NODE demonstrates why the hierarchy level of the current node is saved in the helper variable level .

In the first case, the opened element of subitems is exited using

SKIP_NODE . The full subtree introduced using subitems is parsed and moved to an XML writer. The results are then displayed.

In the second case, the opened elements of all subelements of

subitems are exited. They are parsed and their content is moved to an
XML writer. These elements are located at the same level, which means the associated opened element and the closed element must added to the writer explicitly.