IPreprocessorExtension Interface

Interface for extending the WiX toolset preprocessor.

Methods

Method	Description
EvaluateFunction(prefix, function, args)	Evaluates a function defined in the extension.
GetVariableValue(prefix, name)	Gets the value of a variable whose prefix matches the extension.
PostPreprocess()	Called at the end of the preprocessing of a source file.
PrePreprocess()	Called at the beginning of the preprocessing of a source file.
ProcessPragma(prefix, pragma, args, parent)	Processes a pragma defined in the extension.

Properties

Property	Description
Prefixes	Gets the variable prefixes for the extension.
WixToolset.Extensibility.dll version 5.0.0+41e11442b2ca93e444b60213b5ae99dcbab787d8

EvaluateFunction(prefix, function, args) Method {#evaluatefunction_prefix_function_args}

Evaluates a function defined in the extension.

Declaration

public string EvaluateFunction(
  string prefix,
  string function,
  System.String[] args
)

Parameters

Parameter	Type	Description
prefix	string	The prefix of the function to be processed by the extension.
function	string	The name of the function.
args	System.String[]	The list of arguments.

Return value

string The value of the function or null if the function is not defined.

GetVariableValue(prefix, name) Method {#getvariablevalue_prefix_name}

Gets the value of a variable whose prefix matches the extension.

Declaration

public string GetVariableValue(
  string prefix,
  string name
)

Parameters

Parameter	Type	Description
prefix	string	The prefix of the variable to be processed by the extension.
name	string	The name of the variable.

Return value

string The value of the variable or null if the variable is undefined.

PostPreprocess() Method {#postpreprocess_nop}

Called at the end of the preprocessing of a source file.

Declaration

public void PostPreprocess()

PrePreprocess() Method {#prepreprocess_nop}

Called at the beginning of the preprocessing of a source file.

Declaration

public void PrePreprocess()

ProcessPragma(prefix, pragma, args, parent) Method {#processpragma_prefix_pragma_args_parent}

Processes a pragma defined in the extension.

Declaration

public bool ProcessPragma(
  string prefix,
  string pragma,
  string args,
  System.Xml.Linq.XContainer parent
)

Parameters

Parameter	Type	Description
prefix	string	The prefix of the pragma to be processed by the extension.
pragma	string	The name of the pragma.
args	string	The pragma’s arguments.
parent	System.Xml.Linq.XContainer	The parent node of the pragma.

Return value

bool false if the pragma is not defined.

Prefixes Property {#prefixes}

Gets the variable prefixes for the extension.

Declaration

public System.String[] Prefixes { get; set; }