[Webkit-unassigned] [Bug 108881] Canvas fillText and measureText handle ideographic spaces differently

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=108881





--- Comment #6 from Martin Robinson <mrobinson at webkit.org>  2013-08-07 05:17:53 PST ---
(In reply to comment #5)
> The function isSpaceOrNewline returns true for the below characters
> 
> 1. Ascii characters - U+0020, 0xD, 0xC, 0xB, 0xA,  0x9
> 2. All unicode white space characters
> 
> According to http://en.wikipedia.org/wiki/Mapping_of_Unicode_characters#Whitespace_characters :-

Thanks for the detailed explanation. It matches my understanding of the situation. 

I think that shouldSpaceBeReplaced belongs in canvas class since its behavior is specific to the canvas spec. I also recommend basing it off of isSpaceOrNewline to avoid having to repeat the logic of deciding which characters are spaces.

For instance:

return c != 0x3000 && isSpaceOrNewline;

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