Tree structured data transform

A computer-implemented method for transformation of tree structured data containing a set of nodes, comprising:

• generating, responsive to a determination that a predicate of a rule matches a given node in the set of nodes, a compound result and an interim mutated output document by applying a function of the rule to the given node;
• determining, responsive to a determination that the compound result contains a next node, whether the next node is compared with a predicate of a next rule;
• applying, responsive to a determination that the predicate of the next rule matches the next node, a function of an identified rule to next node to generate a second compound result and interim mutated output document;
• and
• generating a final mutated output document using the interim mutated output document as input, wherein
• the compound result includes a node to process next and an instruction indicating continue or break.

A computer hardware system configured to manage a cloud computing environment adapted to host a virtual machine, comprising

• a hardware processor configured to initiate the following executable operations:
• generating, responsive to a determination that a predicate of a rule matches a given node in the set of nodes, a compound result and an interim mutated output document by applying a function of the rule to the given node;
• determining, responsive to a determination that the compound result contains a next node, whether the next node is compared with a predicate of a next rule;
• applying, responsive to a determination that the predicate of the next rule matches the next node, a function of an identified rule to next node to generate a second compound result and interim mutated output document;
• and
• generating a final mutated output document using the interim mutated output document as input, wherein
• the compound result includes a node to process next and an instruction indicating continue or break.

A computer program product, comprising:

• a hardware storage device having program code stored thereon for managing a cloud computing environment adapted to host a virtual machine,
• generating, responsive to a determination that a predicate of a rule matches a given node in the set of nodes, a compound result and an interim mutated output document by applying a function of the rule to the given node;
• determining, responsive to a determination that the compound result contains a next node, whether the next node is compared with a predicate of a next rule;
• applying, responsive to a determination that the predicate of the next rule matches the next node, a function of an identified rule to next node to generate a second compound result and interim mutated output document;
• and
• generating a final mutated output document using the interim mutated output document as input, wherein
• the compound result includes a node to process next and an instruction indicating continue or break.