mirror of
https://github.com/fooflington/selfdefined.git
synced 2025-10-30 21:58:32 +00:00
319 lines
7.0 KiB
Markdown
319 lines
7.0 KiB
Markdown
|
# Haml.js
|
||
|
|
|
||
|
|
High performance JavaScript [Haml](http://haml-lang.com) implementation for [nodejs](http://nodejs.org)
|
||
|
|
|
||
|
|
For a higher quality implementation you may want to look at my [Jade](http://jade-lang.com) template engine,
|
||
|
|
however the syntax is slightly different. Jade's engine may be back-ported to haml.js in the future.
|
||
|
|
|
||
|
|
[](https://travis-ci.org/visionmedia/haml.js)
|
||
|
|
|
||
|
|
## Installation
|
||
|
|
|
||
|
|
$ npm install hamljs
|
||
|
|
|
||
|
|
node> require('hamljs')
|
||
|
|
|
||
|
|
## Express
|
||
|
|
|
||
|
|
To use with [Express](http://expressjs.com) and the .haml extension, simply register the engine:
|
||
|
|
|
||
|
|
app.engine('.haml', require('hamljs').renderFile);
|
||
|
|
|
||
|
|
## About
|
||
|
|
|
||
|
|
Benchmarks rendering the same 21 line haml file located at _benchmarks/page.haml_,
|
||
|
|
shows that this library is nearly **65%** or **3 times** faster than haml-js.
|
||
|
|
|
||
|
|
Winner: haml.js
|
||
|
|
Compared with next highest (haml-js), it's:
|
||
|
|
65.39% faster
|
||
|
|
2.89 times as fast
|
||
|
|
0 order(s) of magnitude faster
|
||
|
|
|
||
|
|
Haml.js attempts to comply with the original [Haml](http://haml-lang.com/docs/yardoc/file.HAML_REFERENCE.html)
|
||
|
|
implementation as well as possible. There are no magic "plugins" like
|
||
|
|
found in other JavaScript haml implementations, for example the following
|
||
|
|
will work just fine:
|
||
|
|
|
||
|
|
- if (items)
|
||
|
|
%ul
|
||
|
|
- for (var i = 0; i < items.length; ++i)
|
||
|
|
%li= items[i]
|
||
|
|
|
||
|
|
Iteration is the one exception to these magical plugins,
|
||
|
|
since this is **ugly** in JavaScript, you may also:
|
||
|
|
|
||
|
|
- if (items)
|
||
|
|
%ul
|
||
|
|
- each item in items
|
||
|
|
%li= item
|
||
|
|
|
||
|
|
## Tags
|
||
|
|
|
||
|
|
%div text
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<div>text</div>
|
||
|
|
|
||
|
|
## Classes
|
||
|
|
|
||
|
|
%div.article.first
|
||
|
|
article text here
|
||
|
|
and here
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<div class="article first">
|
||
|
|
article text here and here
|
||
|
|
</div>
|
||
|
|
|
||
|
|
## Div Class Shortcut
|
||
|
|
|
||
|
|
.comment hey
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<div class="comment">hey</div>
|
||
|
|
|
||
|
|
## Div Id Shortcut
|
||
|
|
|
||
|
|
#article-1 foo
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<div id="article-1">foo</div>
|
||
|
|
|
||
|
|
## Combining Ids and Classes
|
||
|
|
|
||
|
|
You may chain id and classes in any order:
|
||
|
|
|
||
|
|
.article#first.summary content
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<div id="first" class="article summary">content</div>
|
||
|
|
|
||
|
|
## Attributes
|
||
|
|
|
||
|
|
%a{ href: 'http://google.com', title: 'Google It' } Google
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<a href="http://google.com" title="Google It">Google</a>
|
||
|
|
|
||
|
|
Attribute keys such as "for" are automatically quoted
|
||
|
|
by haml.js, so instead of:
|
||
|
|
|
||
|
|
%label{ 'for': 'something' }
|
||
|
|
|
||
|
|
you should:
|
||
|
|
|
||
|
|
%label{ for: 'something' }
|
||
|
|
|
||
|
|
which will render:
|
||
|
|
|
||
|
|
<label for="something"></label>
|
||
|
|
|
||
|
|
## Boolean Attributes
|
||
|
|
|
||
|
|
%input{ type: 'checkbox', checked: true }
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<input type="checkbox" checked="checked"/>
|
||
|
|
|
||
|
|
## Combining Attributes, Ids, and Classes
|
||
|
|
|
||
|
|
Wemay also contain id and classes before or after:
|
||
|
|
|
||
|
|
%a.button{ href: 'http://google.com', title: 'Google It' }.first Google
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<a href="http://google.com" title="Google It" class="button first">Google</a>
|
||
|
|
|
||
|
|
## Code
|
||
|
|
|
||
|
|
Code starting with a hyphen will be executed but
|
||
|
|
not buffered, where as code using the equals sign
|
||
|
|
will be buffered:
|
||
|
|
|
||
|
|
- a = 1
|
||
|
|
- b = 2
|
||
|
|
= a + b
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
3
|
||
|
|
|
||
|
|
HTML buffered with equals sign will **always** be escaped:
|
||
|
|
|
||
|
|
= "<br/>"
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<br/>
|
||
|
|
|
||
|
|
To prevent escaping of HTML entities we can use _!=_:
|
||
|
|
|
||
|
|
!= "<br/>"
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<br/>
|
||
|
|
|
||
|
|
## Iteration
|
||
|
|
|
||
|
|
%ul
|
||
|
|
- each item in items
|
||
|
|
%li= item
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li>one</li>
|
||
|
|
<li>two</li>
|
||
|
|
<li>three</li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
If you require the key or index of the object
|
||
|
|
or array during iteration simple append a comma
|
||
|
|
following another id:
|
||
|
|
|
||
|
|
%ul
|
||
|
|
- each item, index in items
|
||
|
|
%li= item + '(' + index + ')'
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li>one(0)</li>
|
||
|
|
<li>two(1)</li>
|
||
|
|
<li>three(2)</li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
## Doctypes
|
||
|
|
|
||
|
|
Defaults to transitional:
|
||
|
|
|
||
|
|
!!!
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
||
|
|
|
||
|
|
Optionally pass a supported doctype name:
|
||
|
|
|
||
|
|
!!! strict
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
|
||
|
|
|
||
|
|
currently supported doctypes, which can be
|
||
|
|
extended simply by adding values to to _haml.doctypes_.
|
||
|
|
|
||
|
|
'5': '<!DOCTYPE html>',
|
||
|
|
'xml': '<?xml version="1.0" encoding="utf-8" ?>',
|
||
|
|
'default': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">',
|
||
|
|
'strict': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">',
|
||
|
|
'frameset': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">',
|
||
|
|
'1.1': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">',
|
||
|
|
'basic': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">',
|
||
|
|
'mobile': '<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.2//EN" "http://www.openmobilealliance.org/tech/DTD/xhtml-mobile12.dtd">'
|
||
|
|
|
||
|
|
## String interpolation
|
||
|
|
|
||
|
|
%div Hello #{world}
|
||
|
|
|
||
|
|
with locals:
|
||
|
|
|
||
|
|
{ world: "World!" }
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<div>Hello World!</div>
|
||
|
|
|
||
|
|
## :cdata
|
||
|
|
|
||
|
|
%script
|
||
|
|
:cdata
|
||
|
|
foo
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<script><![CDATA[
|
||
|
|
foo
|
||
|
|
]]></script>
|
||
|
|
|
||
|
|
## :javascript
|
||
|
|
|
||
|
|
%head
|
||
|
|
:javascript
|
||
|
|
if (foo)
|
||
|
|
if (bar)
|
||
|
|
alert('baz')
|
||
|
|
|
||
|
|
html:
|
||
|
|
|
||
|
|
<head>
|
||
|
|
<script type="javascript">
|
||
|
|
//<![CDATA[
|
||
|
|
if (foo)
|
||
|
|
if (bar)
|
||
|
|
alert('baz')
|
||
|
|
//]]>
|
||
|
|
</script>
|
||
|
|
</head>
|
||
|
|
|
||
|
|
## Extending Haml
|
||
|
|
|
||
|
|
### Adding Filters
|
||
|
|
|
||
|
|
var haml = require('hamljs')
|
||
|
|
haml.filters.my_filter = function(str) {
|
||
|
|
return doSomethingWith(str)
|
||
|
|
}
|
||
|
|
|
||
|
|
by registering the filter function _my_filter_ we can now
|
||
|
|
utilize it within our Haml templates as shown below:
|
||
|
|
%p
|
||
|
|
:my_filter
|
||
|
|
some text
|
||
|
|
here yay
|
||
|
|
whoop awesome
|
||
|
|
|
||
|
|
### Adding Doctypes
|
||
|
|
|
||
|
|
var haml = require('hamljs')
|
||
|
|
haml.doctypes.foo = '<!DOCTYPE ... >'
|
||
|
|
|
||
|
|
Will now allow you to:
|
||
|
|
!!! foo
|
||
|
|
|
||
|
|
## License
|
||
|
|
|
||
|
|
(The MIT License)
|
||
|
|
|
||
|
|
Copyright (c) 2011 TJ Holowaychuk <tj@vision-media.ca>
|
||
|
|
|
||
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
||
|
|
a copy of this software and associated documentation files (the
|
||
|
|
'Software'), to deal in the Software without restriction, including
|
||
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
||
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
||
|
|
permit persons to whom the Software is furnished to do so, subject to
|
||
|
|
the following conditions:
|
||
|
|
|
||
|
|
The above copyright notice and this permission notice shall be
|
||
|
|
included in all copies or substantial portions of the Software.
|
||
|
|
|
||
|
|
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||
|
|
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||
|
|
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||
|
|
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||
|
|
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|