Lemplate - OpenResty/Lua template framework implementing Perl's TT2 templating language
This is still under early development. Check back often.
From the command-line:
lemplate --compile path/to/lemplate/directory/ > myapp/templates.lua
From OpenResty Lua code:
local templates = require "myapp.templates"
ngx.print(templates.process("homepage.tt2", { var1 = 32, var2 = "foo" }))
From the command-line:
lemplate --compile path/to/lemplate/directory/ > myapp/templates.lua
Lemplate is a templating framework for OpenResty/Lua that is built over Perl's Template Toolkit (TT2).
Lemplate parses TT2 templates using the TT2 Perl framework, but with a twist. Instead of compiling the templates into Perl code, it compiles them into Lua that can run on OpenResty.
Lemplate then provides a Lua runtime module for processing the template code. Presto, we have full featured Lua templating language!
Combined with OpenResty, Lemplate provides a really simple and powerful way to do web stuff.
Lemplate comes with a command line tool call lemplate that you use to precompile your templates into a Lua module file. For example if you have a template directory called templates that contains:
$ ls templates/
body.tt2
footer.tt2
header.tt2
You might run this command:
$ lemplate --compile template/* > myapp/templates.lua
This will compile all the templates into one Lua module file which can be loaded in your main OpenResty/Lua application as the module myapp.templates.
Now all you need to do is load the Lua module file in your OpenResty app:
local templates = require "myapp.templates"
and do the HTML page rendering:
local results = templates.process("some-page.tt2",
{ var1 = val1, var2 = val2, ...})
Now you have Lemplate support for these templates in your OpenResty application.
The Lemplate Lua runtime module has the following API method:
process(template-name, data)
The template-name is a string like 'body.tt2' that is the name of the top level template that you wish to process.
The optional data specifies the data object to be used by the templates. It can be an object, a function or a url. If it is an object, it is used directly. If it is a function, the function is called and the returned object is used.
The goal of Lemplate is to support all of the Template Toolkit features that can possibly be supported.
Lemplate now supports almost all the TT directives, including:
* Plain text
* [% [GET] variable %]
* [% [SET] variable = value %]
* [% DEFAULT variable = value ... %]
* [% INCLUDE [arguments] %]
* [% PROCESS [arguments] %]
* [% BLOCK name %]
* [% IF condition %]
* [% ELSIF condition %]
* [% ELSE %]
* [% FOR x = y %]
* [% FOR x IN y %]
* [% WHILE expression %]
* [% NEXT %]
* [% LAST %]
* [%# this is a comment %]
ALL of the string virtual functions are supported.
ALL of the array virtual functions are supported:
ALL of the hash virtual functions are supported:
MANY of the standard filters are implemented.
The remaining features will be added very soon. See the DESIGN document in the distro for a list of all features and their progress.
The openresty-en mailing list is for English speakers.
The openresty mailing list is for Chinese speakers.
The bleeding edge code is available via Git at git://github.com/openresty/lemplate.git
Please submit bug reports, wishlists, or patches by
This project is based on Ingy dot Net's excellent Jemplate project.
Yichun Zhang (agentzh), agentzh@gmail.com, OpenResty Inc.
Copyright (C) 2016-2017 Yichun Zhang (agentzh). All Rights Reserved.
Copyright (C) 1996-2014 Andy Wardley. All Rights Reserved.
Copyright (c) 2006-2014. Ingy döt Net. All rights reserved.
Copyright (C) 1998-2000 Canon Research Centre Europe Ltd
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
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