An implementation of the TAL template language.
Project description
Overview
The z3c.pt package provides an alternative implementation of the TAL template language including i18n. It also provides a simple text template class that allows expression interpolation.
Casual benchmarks pegs it 11x more performant than zope.pagetemplate.
In a nutshell:
Templates are bytecode-compiled
Pluggable expression implementation
Support for expression interpolation using the ${<expression>}-format
Non-XML friendly
Note: The METAL macro language is not supported.
Usage
See README.txt inside package for general usage; to register the default expression types, load the package component configuration file (configure.zcml).
Template and expression language
The template and expression language is based loosely on the TAL 1.4 specification*. Some notable changes:
Tuples are allowed in the tal:define statement:
tal:define=”(a, b, c) [1, 2, 3]”
Generators are allowed in tal:repeat statements. Note that the repeat variable is not available in this case.
tal:repeat=”i <some generator>”
Attribute-access to dictionary entries is allowed in Python-expressions, e.g.
dictionary.key
can be used instead of dictionary['key'].
Expression interpolation is allowed in attributes and HTML content.
<a href=”mailto:${context.email}”>${context.email}</a>
Default expression type can be set using tal:default-expression. This is an alternative to providing the expression type before each expression.
Development
If you want to use the code directly from trunk (recommended only for development and testing usage), provide z3c.pt==dev as your dependency.
Changelog
Version 0.8.x
Added template source annotations on exceptions raised while rendering a template.
Version 0.8 - March 19, 2008
Added support for ‘nocall’ and ‘not’ (for path-expressions).
Added support for path- and string-expressions.
Abstracted expression translation engine. Expression implementations are now pluggable. Expression name pragmas are supported throughout.
Formalized expression types
Added support for ‘structure’-keyword for replace and content.
Result of ‘replace’ and ‘content’ is now escaped by default.
Benchmark is now built as a custom testrunner
Version 0.7 - March 10, 2008
Added support for comments; expressions are allowed inside comments, i.e.
<!– ${‘Hello World!’} –>
Comments are always included.
Version 0.6 - February 24, 2008
Added support for text templates; these allow expression interpolation in non-XML documents like CSS stylesheets and javascript files.
Version 0.5 - February 23, 2008
Expression interpolation implemented.
Version 0.4 - February 22, 2008
Engine now uses cStringIO yielding a 2.5x performance improvement. Unicode is now handled correctly.
Version 0.3 - December 23, 2007
Code optimization; bug fixing spree
Added ViewPageTemplateFile class
Added support for i18n
Engine rewrite; improved code generation abstractions
Version 0.2 - December 5, 2007
Major optimizations to the generated code
Version 0.1 - December 3, 2007
First public release
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
