介绍
Emmet (前身为 Zen Coding) 是一个能大幅度提高前端开发效率的一个工具。
基本上,大多数的文本编辑器都会允许你存储和重用一些代码块,我们称之为“片段”。虽然片段能很好地推动你得生产力,但大多数的实现都有这样一个缺点:你必须先定义你得代码片段,并且不能再运行时进行拓展。
Emmet把片段这个概念提高到了一个新的层次:你可以设置CSS形式的能够动态被解析的表达式,然后根据你所输入的缩写来得到相应的内容。Emmet是很成熟的并且非常适用于编写HTML/XML 和 CSS 代码的前端开发人员,但也可以用于编程语言。
示例在编辑器中输入缩写代码ul>li*5,然后按下拓展键(默认为tab),即可得到代码片段:
<ul> <li></li> <li></li> <li></li> <li></li> <li></li></ul>
以下都是Emmet为编辑器提供的安装插件。
Sublime Text
Eclipse/Aptana
TextMate
Coda
Espresso
Chocolat
Komodo Edit
Notepad++
PSPad
textarea
CodeMirror
Brackets
NetBeans
Adobe Dreamweaver
JSFiddle
JS Bin
CodePen
ICEcoder
Divshot
Codio
下面这些编辑器的插件都是由第三方开发者所提供的,所以可能并不支持所有Emmet的功能和特性。
SynWrite
WebStorm
PhpStorm
Vim
HTML-Kit
HippoEDIT
CodeLobster PHP Edition
TinyMCE
语法nav>ul>li
<nav> <ul> <li></li> </ul></nav>
div+p+bq
<div></div><p></p><blockquote></blockquote>
div+div>p>span+em^bq
<div></div><div> <p><span></span><em></em></p> <blockquote></blockquote></div>
div+div>p>span+em^^bq
<div></div><div> <p><span></span><em></em></p></div><blockquote></blockquote>
div>(header>ul>li*2>a)+footer>p
<div> <header> <ul> <li><a href=""></a></li> <li><a href=""></a></li> </ul> </header> <footer> <p></p> </footer></div>
(div>dl>(dt+dd)*3)+footer>p
<div> <dl> <dt></dt> <dd></dd> <dt></dt> <dd></dd> <dt></dt> <dd></dd> </dl></div><footer> <p></p></footer>
ul>li*5
<ul> <li></li> <li></li> <li></li> <li></li> <li></li></ul>
ul>li.item$*5
<ul> <li class="item1"></li> <li class="item2"></li> <li class="item3"></li> <li class="item4"></li> <li class="item5"></li></ul>
h$[title=item$]{Header $}*3
<h1 title="item1">Header 1</h1><h2 title="item2">Header 2</h2><h3 title="item3">Header 3</h3>
ul>li.item$$$*5
<ul> <li class="item001"></li> <li class="item002"></li> <li class="item003"></li> <li class="item004"></li> <li class="item005"></li></ul>
ul>li.item$@-*5
<ul> <li class="item5"></li> <li class="item4"></li> <li class="item3"></li> <li class="item2"></li> <li class="item1"></li></ul>
ul>li.item$@3*5
<ul> <li class="item3"></li> <li class="item4"></li> <li class="item5"></li> <li class="item6"></li> <li class="item7"></li></ul>
#header
<div id="header"></div>
.title
<div class="title"></div>
form#search.wide
<form id="search" class="wide"></form>
p.class1.class2.class3
<p class="class1 class2 class3"></p>
p[title="Hello world"]
<p title="Hello world"></p>
td[rowspan=2 colspan=3 title]
<td rowspan="2" colspan="3" title=""></td>
[a='value1' b="value2"]
<div a="value1" b="value2"></div>
a{Click me}
<a href="">Click me</a>
p>{Click }+a{here}+{ to continue}
<p>Click <a href="">here</a> to continue</p>
.class
<div class="class"></div>
em>.class
<em><span class="class"></span></em>
ul>.class
<ul> <li class="class"></li></ul>
table>.row>.col
<table> <tr class="row"> <td class="col"></td> </tr></table>
所有未知的缩写都会转换成标签,例如,foo →
!
<!doctype html><html lang="en"><head> <meta charset="UTF-8"> <title>Document</title></head><body></body></html>
a
<a href=""></a>
a:link
<a href="http://"></a>
a:mail
<a href="mailto:"></a>
abbr
<abbr title=""></abbr>
acronym
<acronym title=""></acronym>
base
<base href="" />
basefont
<basefont />
br
<br />
frame
<frame />
hr
<hr />
bdo
<bdo dir=""></bdo>
bdo:r
<bdo dir="rtl"></bdo>
bdo:l
<bdo dir="ltr"></bdo>
col
<col />
link
<link rel="stylesheet" href="" />
link:css
<link rel="stylesheet" href="style.css" />
link:print
<link rel="stylesheet" href="print.css" media="print" />
link:favicon
<link rel="shortcut icon" type="image/x-icon" href="favicon.ico" />
link:touch
<link rel="apple-touch-icon" href="favicon.png" />
link:rss
<link rel="alternate" type="application/rss+xml" title="RSS" href="rss.xml" />
link:atom
<link rel="alternate" type="application/atom+xml" title="Atom" href="atom.xml" />
meta
<meta />
meta:utf
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
meta:win
<meta http-equiv="Content-Type" content="text/html;charset=windows-1251" />
meta:vp
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0" />
meta:compat
<meta http-equiv="X-UA-Compatible" content="IE=7" />
style
<style></style>
script
<script></script>
script:src
<script src=""></script>
img
<img src="" alt="" />
iframe
<iframe src="" frameborder="0"></iframe>
embed
<embed src="" type="" />
object
<object data="" type=""></object>
param
<param name="" value="" />
map
<map name=""></map>
area
<area shape="" coords="" href="" alt="" />
area:d
<area shape="default" href="" alt="" />
area:c
<area shape="circle" coords="" href="" alt="" />
area:r
<area shape="rect" coords="" href="" alt="" />
area:p
<area shape="poly" coords="" href="" alt="" />
form
<form action=""></form>
form:get
<form action="" method="get"></form>
form:post
<form action="" method="post"></form>
label
<label for=""></label>
input
<input type="text" />
input:text input:t inp
<input type="text" name="" id="" />
input:hidden input:h input[type=hidden name]
<input type="hidden" name="" />
input:search inp[type=search]
<input type="search" name="" id="" />
input:email inp[type=email]
<input type="email" name="" id="" />
input:url inp[type=url]
<input type="url" name="" id="" />
input:password input:p inp[type=password]
<input type="password" name="" id="" />
input:datetime inp[type=datetime]
<input type="datetime" name="" id="" />
input:date inp[type=date]
<input type="date" name="" id="" />
input:datetime-local inp[type=datetime-local]
<input type="datetime-local" name="" id="" />
input:month inp[type=month]
<input type="month" name="" id="" />
input:week inp[type=week]
<input type="week" name="" id="" />
input:time inp[type=time]
<input type="time" name="" id="" />
input:number inp[type=number]
<input type="number" name="" id="" />
input:color inp[type=color]
<input type="color" name="" id="" />
input:checkbox input:c inp[type=checkbox]
<input type="checkbox" name="" id="" />
input:radio input:r inp[type=radio]
<input type="radio" name="" id="" />
input:range inp[type=range]
<input type="range" name="" id="" />
input:file input:f inp[type=file]
<input type="file" name="" id="" />
input:submit input:s
<input type="submit" value="" />
input:image input:i
<input type="image" src="" alt="" />
input:button input:b
<input type="button" value="" />
input:reset input:button[type=reset]
<input type="reset" value="" />
select
<select name="" id=""></select>
option
<option value=""></option>
textarea
<textarea name="" id="" cols="30" rows="10"></textarea>
menu:context menu:c menu[type=context]
<menu type="context"></menu>
menu:toolbar menu:t menu[type=toolbar]
<menu type="toolbar"></menu>
video
<video src=""></video>
audio
<audio src=""></audio>
html:xml
<html xmlns="http://www.w3.org/1999/xhtml"></html>
keygen
<keygen />
command
<command />
bq blockquote
<blockquote></blockquote>
acr acronym
<acronym title=""></acronym>
fig figure
<figure></figure>
figc figcaption
<figcaption></figcaption>
ifr iframe
<iframe src="" frameborder="0"></iframe>
emb embed
<embed src="" type="" />
obj object
<object data="" type=""></object>
src source
<source></source>
cap caption
<caption></caption>
colg colgroup
<colgroup></colgroup>
fst fset fieldset
<fieldset></fieldset>
btn button
<button></button>
btn:b button[type=button]
<button type="button"></button>
btn:r button[type=reset]
<button type="reset"></button>
btn:s button[type=submit]
<button type="submit"></button>
关于更多的HTML以及CSS的缩写请查看:官网文档