2009/5/21 Chris Sansom <ch...@highway57.co.uk>:
>
> At 17:24 +0300 21/5/09, Vladimir Tkach wrote:
>>Prototype gsub error?
>>
>>$H({s:'\'}).toJSON()
>>
>>Result : SyntaxError: unterminated string literal
>
> I /think/, though the experts hereabouts will confirm or otherwise,
> that JavaScript thinks the \ is escaping the quote that comes after
> it. To do what you want, I believe you'd have to escape the backslash
> in turn:
>
> $H({s:'\\'}).toJSON()
>
> I hope that's right!
>
> --
> Cheers... Chris
> Highway 57 Web Development -- http://highway57.co.uk/
>
> Why do you necessarily have to be wrong just because
> a few million people think you are?
> -- Frank Zappa
>
> >
>
Yep. \ is a magic character in many languages.
\r
\n
\t
to name just 3 things (return, newline, tab).
\\
is to allow the escape character through.
Watch out when building JS code from other languages.
<?php
$s_JavaScriptString = 'document.write(\'John O\\\'Connor\');';
echo $s_JavaScriptString;
?>
for example.
Ok. Bad example, but as you start passing the text through different
engines, the \ needs to be escaped for each level.
So, PHP generating JS generating HTML content ... having anything to
escape has to be done carefully.
--
-----
Richard Quadling
Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731
"Standing on the shoulders of some very clever giants!"
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