** Summary **

'''tcljs''' is a Tcl wrapper for the NJS JavaScript interpreter library


** Attributes **

   author:   [Neil Madden]

   author:   [Jos Decoster]

   website:   http://code.google.com/p/tcljs/

   website:   http://www.cs.nott.ac.uk/~nem/tcl/ (not found as of 2013-08-29)

   website:   http://www.njs-javascript.org/ (this domain is for sale as of 21 Sep 2009)


** Description **

[PYK] 2013-08-29:  I may have conflated two entirely different software
packages here.  If that's the case, hopefully someone else with the inside
scoop will jump in and clarify.

[nurdglaw] 2014-02-08: Is anyone using tcljs? I'm doing a home project to scrape some data off the web. No sooner had I got my system working to my liking, than the website came up with a new version that makes extensive use of JavaScript. Rather than eyeball the page sources and emulate what they were doing in the way of setting up links, which I did fairly successfully for version 1 of my program, I thought I'd try and execute the JavaScript and work with the generated HTML.

So, I downloaded tcljs. It said to download spidermonkey, so I did that. I built SpiderMonkey and tried to build tcljs. Hmm, where's Linux_ALL_DBG.OBJ? I downloaded and built an older version of SpiderMonkey. Still couldn't build tcljs - it couldn't find libfdm.a. Delved into the Makefiles, and identified a SpiderMonkey Makefile to builld it that didn't seem to have been executed. Executed it. Wahay! I can now build tcljs, although it needed some work to build the dox.

`make test` fails big time with a core dump, but maybe that's not going to be a big problem. Oh dear, it ''is'' a big problem:

===
$ tkcon
% package require TclJs
% set i [::js::interp]
% $i interp {print "Hello, World"}
===

core dumps. 

I've just tried sending "`var i; i=0; i+1`" to a JavaScript interpreter and that doesn't coredump, and I've also sent the scripts from the website to an
interpreter and that didn't coredump either, so maybe I can live with it, but it looks like I've got a problem somewhere (in addition to my less than adequate knowledge of how to write JavaScript).

I'll have a go at building tcljs on top of the current SpiderMonkey, and report back here how I get on. In the meantime any help or hints about the coredump would be much appreciated.

Standard disclaimer: I don't use the wiki much, apologies if I've put my question in the wrong place. Please correct me gently.
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