ecmanaut: 2005-02-28

Previous Next 2005-02-28, 16:12

Javascript indent tool

Okay, the last procrastinational activity for today: a very (stone axe) crude kind of javascript indent tool built on GNU indent. So it doesn't really reindent Javascript code, but C. Silly me. But while it does trash the occasional RegExp literal, it's less of a hassle than doing all the work manually.

Besides, most C users wouldn't use web tools to indent their code. Not me, anyway. But if you would, feel free to use this one. The worst thing that could happen is that it might at some time in the future also work with keywords and literals you do not use in your C code, where they are not supported.

(I wish I had some tool that turns javascript input to an abstract syntax tree, which I could then just traverse to cook my own Function.prototype.toSource(). ...Okay, back to work now.)

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2 Comment:

I'm looking to analyze the javascript in complex commercial web sites (e.g. www.cnn.com). Can you recommend a tool that will nicely indent such a site's HTML and javascript.

Thanks in advance,

dougdillon1956@gmail.com

By Doug, on Tue May 29, 09:43:00 PM CEST
This is the best beautifier I found: http://elfz.laacz.lv/beautify/

By Matteo, on Fri May 16, 02:54:00 PM CEST

Modal headaches

How does one intercept modal browser alerts about connection problems, file transfer failues and the like from javascript?

Most of all, I want to trap the "The operation timed out when attempting to contact www.kingdomofloathing.com" dialog, which pops up very frequently (typically at least once every session) when I load a new frame from my javascript code. Of course it has nothing to do with which method I employ to load it, but it's mostly when I initiate the transfers myself when I'm really interested in trapping the alert to handle it in a more constructive and less user-involving manner.

Even a solution requiring me to be a Mozilla plugin would be useful, though what I really want is something that could live in a scriptlet or web page and handle the call, ideally cross-browser. With browser Javascript not being nearly as wing-clipped today as it was back in the nineteen hundreds, I've come to expect to be able to solve issues like these. (Let's hope I'm not being overly optimistic.)

Any feedback on the subject very welcome indeed. I'll be sure to write some kind of article about the solution once I find out or get pointed to it.

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