CODEWITHSUNDEEP
coffeescripteco
Erik
Erik

Reputation: 7741

Comments in Embedded Coffeescript (ECO) templates

Is there a way to put comments (single and multiline) in ECO templates such that they do not appear in the rendered output?

For example, Django templates let you do this on a single line:

{# greeting #}hello

or on multiple lines:

<p>Rendered text with {{ pub_date|date:"c" }}</p>
{% comment %}
    <p>Commented out text with {{ create_date|date:"c" }}</p>
{% endcomment %}

Upvotes: 2

Views: 915

Answers (2)

Cristiano Mendon&#231;a
Cristiano Mendon&#231;a

Reputation: 1282

There is a special tag for commenting, namely, <%# %>

Example:

<%# This is a single line comment %>

Upvotes: 2

Steve Mc
Steve Mc

Reputation: 3441

Effectively everything inside the <% %> is coffeescript (ECO = Embedded CoffeeScript). Comments in CoffeeScript use the # character to comment a single line (and ### for multiline comments). See coffeescript - How to comment? "/* this */" doesn't work

So in ECO you would comment like this:

<% #This is a single line comment %>

If you examine the source code for ECO templates you can see the regex that's handling the comment situation in scanner.js.

Scanner.modePatterns = {
      data: /(.*?)(<%%|<%\s*(\#)|<%(([=-])?)|\n|$)/,
      code: /(.*?)((((:|(->|=>))\s*))?%>|\n|$)/,
      comment: /(.*?)(%>|\n|$)/
    };

Upvotes: 3

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