handlebars-rust

Rust templating with Handlebars.

• travis-ci:
• crates.io:
• document: rust-doc

Warning: This project, like rust, is in its early stage. Breaking changes are constantly introduced.

Currently handlebars-rust still uses some unstable APIs, which means this project might break on Rust 1.0.0-beta. Please use nightly version instead.

Why Handlebars?

For information about handlebars, you will go to handlebars.js.

It's my favorite templating tool by far. I used it in Delicious.com as javascript-side template in 2013. Also I maintained a Clojure wrapper for Handlebars.java, hbs. And you may notice the close relationship between Ember.js and Rust community, handlebars is the default templating language of Ember.js framework, which powers crates.io.

Reasons I prefer Handlebars:

• Never ruin your Rust with HTML
• Never ruin your HTML with Rust
• Templating without a reuse mechanism is shit
• Templating without customization is nothing but shit

Handlebars provides:

• Separation of Rust and HTML
• A few control structures makes templating easier
• Few control structures stops you to put logic into templates
• Template reuse with include(>), partial and block
• Customize template behavior with helpers

Limitations:

• As a static typed language, it's a little verbose to use handlebars
• You will have to make your data ToJson-able, so we can render it. We have a syntax extension to generate default ToJson implementation for you

Usage

Check examples in the source. The example shows you how to:

• Create a Handlebars and register the template from files
• Create a custom Helper by impl HelperDef, and register it
• Render something
• Make your custom struct ToJson-able with tojson_macros.

Run cargo run --example render to see results. (or RUST_LOG=INFO cargo run --example render) for logging output.

Handlebars-js features supported in Handlebars-rust

• Expression / Block Helpers
• Built-in helpers
• Customizing helper
• Parameter and hashes for helper
• Partials, include
• Omitting whitespace with ~

Feel free to report an issue if you find something broken. We aren't going to implement all features of handlebars-js, but we should have a workaround for cases we don't support.

Handlebars for Iron

I have started another project handlebars-iron for the Iron web framework.

License

MIT, of course.

Contact

Ning Sun (sunng@about.me)