Recently I discovered it's possible to have syntax-highlighting in a <textarea> using JavaScript.

Are there Open Source libraries which also support auto pletion? I'd like to make a simple online editor for HTML/CSS templates.

Preferably, the pletion is can be extended, so I can add custom rules.

Recently I discovered it's possible to have syntax-highlighting in a <textarea> using JavaScript.

Are there Open Source libraries which also support auto pletion? I'd like to make a simple online editor for HTML/CSS templates.

Preferably, the pletion is can be extended, so I can add custom rules.

• javascript
• textarea
• code-pletion

• Sounds like a cool idea, but not very practical yet. I guess you could utilize HTML5 to cache most of it for off-line use. – xil3 Commented Jan 14, 2011 at 15:50
• @xil3: what would I have to cache offline? The code pletion definitions? They could be inlined as JSON – vdboor Commented Jan 21, 2011 at 16:35
• so someone would always need an internet connection to use the IDE? Even if the code pletion definitions were in-line, that would need to be cached somewhere in order to access this off-line. – xil3 Commented Jan 21, 2011 at 16:47
• @xil3, ah I see. yes HTML5 makes sense in such cases – vdboor Commented Jan 22, 2011 at 0:18

3 Answers 3

You should check this wikipedia page on javascript based code editors. It lists the MDK-Editor as one that supports auto-pletion for html, css and javascript. You can see a demo here.

CodeMirror has ability to support autopletion

• JS example: http://codemirror/demo/plete.html
• XML example http://codemirror/demo/xmlplete.html

Mozilla Labs has Skywriter (This project is no longer active) which is a browser based IDE. I don't know if it has code pletion (I couldn't find it) though.