NAME

Template6 - A Template Engine for Raku

SYNOPSIS

use Template6;

DESCRIPTION

Inspired by Template Toolkit from Perl, Template6 is a simple template engine designed to be a content-neutral template language.

This project does not intend to create an exact clone of Template Toolkit. Some features from TT are not planned for inclusion, and likewise, some feature will be included that are not in TT. Not all features will work the same either.

Currently implemented features

GET and SET statements, including implicit versions.

[% get varname %]
[% varname %]
[% set varname = value %]
[% varname = value %]

FOR statement.

This replaces the FOREACH statement in TT2. It can be used in one of four ways:

[% for listname as itemname %]
[% for listname -> itemname %]
[% for itemname in listname %]
[% for itemname = listname %]

If used with Hashes, you'll need to query the .key or .value accessors.

IF/ELSIF/ELSE/UNLESS statements.

These are very simplistic at the moment, but work for basic tests.

Querying nested data structures using a simple dot operator syntax.
CALL and DEFAULT statements.
INSERT, INCLUDE and PROCESS statements.

Differences with Template Toolkit

You should use explicit quotes, including in INSERT/INCLUDE/PROCESS directives.
UNLESS-ELSE is not supported - Raku also doesn't support this syntax
All statement directives are case insensitive.
There are no plans for the INTERPOLATE option/style.
Anything not yet implemented (see TODO below.)

Caveats

Whitespace control is not implemented, so some things are fairly odd. See TODO.
A lot of little nit-picky stuff, likely related to the whitespace issue.

TODO

Short Term Goals

WRAPPER statement
block statements
given/when statements
Add 'absolute' and 'relative' options to Template6::Provider::File
Whitespace control
Precompiled/cached templates
Tag styles (limited to definable start_tag and end_tag)

Long Term Goals

Filters
Variable interpolation (in strings, variable names, etc.)
Capture of directive output
Directive comments
Side-effect notation
Multiple directives in a single statement tag set
Macros, plugins, etc.

Possible future directions

I would also like to investigate the potential for an alternative to Template6::Parser that generates Raku closures without the use of EVAL. This would be far trickier, and would not be compatible with the precompiled templates, but would be an interesting exercise nonetheless.

AUTHOR

Timothy Totten

COPYRIGHT AND LICENSE

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.