Logic-less templates for people using GLib.
using Mustache; using Json; var context = new FileContext (File.new_for_path ("templates")); var template = new Parser (new Lexer (context.read_partial ("index.html.mustache"))).template (); var env = new Json.Node (); env.set_object (new Json.Object ()); template.to_stream (@out, env);
This is still a work-in-progress, so here's the implementation reference:
The reference document is here: https://mustache.github.io/mustache.5.html
The lexer can be implemented using GLib.Scanner as a reference. Using it directly is not really useful as it is designed to parse C-like languages.
Recursive descent can be used to parse the template:
- submap of the environment is passed as a parameter, this way the parsing is contextualized and the function stack is used to backtrack in the environment
- template is tokenized, analyzed and rendered in an
OutputStreamduring the descent to maintain a low memory consumption and render very big templates efficiently
The Set Delimiter feature is a real pain. The lexer will have to memorize the tag delimiters.
Environment will hold different types:
- environment (hash)
The function should by typed by a delegate.
libxml2 can handle HTML escaping by encoding entities: http://valadoc.org/#!api=libxml-2.0/Html