Cht api

CHT and jtlc API: Classes and Functions

Please note that this page describes high-level and low-level facilities alike. In order to better understand the efficient ways of building your Web applications with CHT, refer to the Concepts section of this Wiki.

Namespace dojox.jtlc

compile()

dojo.require( 'dojox.jtlc.compile' );

var evaluator = dojox.jtlc.compile( input, language, compile_time_options );

Invokes the jtlc compiler, producing a Javascript function object evaluator from the abstract syntax tree described by the input.

Due to the distributed nature of jtlc language definitions, the output is determined primarily by the types of the AST nodes while the language argument affects the interpretation of untyped nodes of the tree (values, objects that don’t define a compile() method, arrays) as well as provides a set of global options available to all node types. At present, jtlc language objects can be constructed by instantiating one of the following classes: dojox.jtlc.JXL, dojox.jtlc.qplus and dojox.jtlc.CHT.

Additionally, the optional argument compile_time_options may serve to pass in a dictionary of options to the specific compilation. These options are dependent on the nature of the language and node types used; for examle, CHT uses this mechanism to provide localization dictionaries to templates.

JXL

dojo.require( 'dojox.jtlc.JXL' );

Class encapsulating the global options for the Javascript Transformation Language. Note that JXL itself is mostly defined by the AST node types in the module dojox.jtlc.tags that are described in the JXL primitives section of this Wiki.