Module transform 

XSLT transformation engine (§33, §85 Phase 8).

Executes compiled stylesheets against source documents:

• xsltNewTransformContext / xsltFreeTransformContext
• xsltApplyStylesheet and variants
• Template application and instruction execution
• Result tree construction
• Current node / context position / context size management
• Recursion depth limiting

UPSTREAM-PARITY

Upstream libxslt (transform.c) drives the transformation from xsltApplyStylesheet:

1. Create a transform context (or reuse a user-supplied one).
2. Initialize global variables and key tables.
3. Apply the template matching the root node of the source document.
4. Execute the template’s instructions, building the result tree.
5. Return the result document.

The insert pointer in the context tracks the current insertion point in the result tree; the node / nodeList fields track the current source node and node list; contextSize / proximityPosition track the XPath context.

Constants

XSLT_MAX_DEPTH

Maximum template recursion depth (matches upstream XSLT_MAX_DEPTH).

XSLT_MAX_INSERT_DEPTH

Maximum insert depth.

XSLT_STATE_ERROR

XSLT_STATE_OK

State flags for the transform context.

XSLT_STATE_STOPPED

The transformation was stopped (e.g. xsl:message terminate=“yes”).

Statics

xsltMaxDepth

Maximum template recursion depth (upstream xsltMaxDepth, transform.c). Default 30000 (upstream xslt.c).

xsltMaxVars

Maximum number of variables/params (upstream xsltMaxVars, transform.c).

Functions

execute_content^⚠

Execute the content of a template (a list of nodes).

exslt_element_names

The set of EXSLT element names recognized by element-available().

exslt_function_names

The set of EXSLT function QNames (prefix:local) for function-available().

xsltApplyStylesheet^⚠

Apply a stylesheet to a document.

xsltApplyStylesheetStacked^⚠

Apply a stylesheet with a parameter stack.

xsltApplyStylesheetUser^⚠

Apply a stylesheet with user control.

xsltFreeTransformContext^⚠

Free a transform context.

xsltFreeTransformResult^⚠

Free the result of a transformation.

xsltGetXIncludeDefault^⚠

Get the current XInclude default (upstream xsltGetXIncludeDefault).

xsltNewTransformContext^⚠

Create a new transform context.

xsltProcessInstruction^⚠

Process a single instruction node.

xsltRunStylesheet^⚠

Apply a stylesheet and write the result to an output channel.

xsltRunStylesheetUser^⚠

Apply a stylesheet and write the result to an output channel.

xsltSetXIncludeDefault^⚠

Set whether XInclude processing is done on documents loaded by the transformation (upstream xsltSetXIncludeDefault).