675896 - Inputking.com stops loading

Status: VERIFIED FIXED

(Core :: JavaScript Engine, defect)

Description

[Kemcy BEST]

User Agent: Mozilla/5.0 (X11; Linux i686; rv:8.0a1) Gecko/20110727 Firefox/8.0a1
Build ID: 20110727114959

Steps to reproduce:

I used inputking.com to type Chinese on Linux computer (where I do not have admin rights to install input methods). The PC runs Ubuntu 10.04 LTS. I'm testing the nightly builds.


Actual results:

On a recent update of 8.0a1, I found inputking.com fails to load.

STR:
1. Open http://inputking.com/
2. Check "Chinese (中文)" on the top and click the yellow button "Start Inputking" at the bottom.
3. A new window or tab should open.

Problem: this window (or tab) displays Please wait．．． forever.


Expected results:

This window (or tab) should finish loading and display an input field to type text.

works in
http://ftp.mozilla.org/pub/mozilla.org/firefox/tinderbox-builds/mozilla-central-linux/1311743874/

breaks in
http://ftp.mozilla.org/pub/mozilla.org/firefox/tinderbox-builds/mozilla-central-linux/1311792599/

Comment 1

[Alice0775 White]

Confirmed on 
http://hg.mozilla.org/mozilla-central/rev/f92e021f1f44
Mozilla/5.0 (Windows NT 5.1; rv:8.0a1) Gecko/20110801 Firefox/8.0a1 ID:20110801030916

Pushlog in m-i
http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=0d37af9e506f&tochange=a774533fbbf1


In local build( from m-i repro.)
build from a774533fbbf1 : displays Please wait．．． forever
build from 54b8ca3b0c7a : displays Please wait．．． forever
build from 0d37af9e506f : display an input field to type text

triggered by:
54b8ca3b0c7a	Tom Schuster — Bug 652771 - Update Unicode character support for space categorization, also somewhat for uppercase and lowercase (although these will only be fully fixed in followup bugs). r=jwalden. Further (lumped together to address interdependencies): Bug 672760 - Don't pass the EOF non-character to any of the Unicode character-categorization functions. r=jwalden

Comment 2

[Alice0775 White]

An Error shown in Error Console as follows

Error: missing ( before formal parameters
Source File: http://inputking.com/ime/ime_new.php
Line: 4, Column: 2256
Source Code:
code_holder='';cancel_key_event=false;$('#edit_area').ke............

Comment 3

[Tom S. (please needinfo tschuster)]

Reduced testcase:
function key_down_英() {
}
The problem is that make_unicode does not parse "CJK Ideograph" eg.
4E00;<CJK Ideograph, First>;Lo;0;L;;;;;N;;;;;
9FCB;<CJK Ideograph, Last>;Lo;0;L;;;;;N;;;;;
Which U+82F1 (英) is part of, and these are apparently even valid identifiers, because they have the class (Lo).

Comment 4

[Boris Zbarsky [:bzbarsky]]

Requesting tracking for this regression.

Comment 5

[Tom S. (please needinfo tschuster)]

Attachment: v0

So after tracking this down, the fix is really easy, we just need to use the right flags for all characters in this code range. I built with this and it fixed this bug and bug 675400.

I really need to abstract make_unicode.py a lot better, i am going to to this bug 672042 otherwise the code will get even more hostile.

Comment 6

[Tom S. (please needinfo tschuster)]

Attachment: v1 - the fix

Comment 7

[Tom S. (please needinfo tschuster)]

Attachment: add UnicodeData

Comment 8

[Jeff Walden [:Waldo]]

Comment on attachment 550152 [details] [diff] [review]
v1 - the fix

Review of attachment 550152 [details] [diff] [review]:
-----------------------------------------------------------------

::: js/src/tests/ecma_5/misc/unicode-identifier-1d17.js
@@ +15,5 @@
>  
>  var o = {}
>  try {
>      eval('o.\\u1D17 = 42');
> +    eval('o.\\u82F1 = "hello world"');

Pedantically, these changes probably want to be in a new test file, but I don't think it really matters that much.

Comment 9

[Tom S. (please needinfo tschuster)]

http://hg.mozilla.org/integration/mozilla-inbound/rev/9ef8e264cd41

Comment 10

[Marco Bonardo [:mak]]

http://hg.mozilla.org/mozilla-central/rev/9ef8e264cd41

Comment 12

[Kemcy BEST]

Thanks! Verified.