474631 - javascript regexp: '\s+' not supported

Status: RESOLVED DUPLICATE of bug 23708

(Firefox :: General, defect)

Description

[julien.t43+mozilla]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; fr; rv:1.9.0.5) Gecko/2008120121 Firefox/3.0.5
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; fr; rv:1.9.0.5) Gecko/2008120121 Firefox/3.0.5

While trying to make a script with greasemonky, using regexp functions, i observe expression like 'foo\s+bar' don't work.
'foo bar' matches but not with '\s+'.

for regexp, \s could be space, line return, tab, ... and it's a very useful identifier.

Reproducible: Always

Steps to Reproduce:
1. create a greasemonkey script
2. make the following code (from highlighter.user.js)
x=new RegExp('(foo\s+bar)','gi');
rn=Math.floor(Math.random()*100);
rid='z' + rn;
b = document.body.innerHTML;
b=b.replace(x,'<span name=' + rid + ' id=' + rid + ' style=\'color:#FFF;background-color:red;\'>$1</span>');
void(document.body.innerHTML=b);

Actual Results:  
it will highlight nothing

Expected Results:  
normal behavior matches:
foo bar
foo\tbar
foo\nbar
...

Comment 1

[Aiko]

'foo\sbar' is the same as 'foosbar'. You want 'foo\\sbar', see bug 23708 comment 8.