Re: ?js_string double escapes - is this wanted ?

Okay, makes sense. Thanks for the feedback ! :)

-g

On 09 Dec 2011, at 17:35, Daniel Dekany wrote:

> Friday, December 9, 2011, 3:56:55 PM, Grégory Joseph wrote:
> 
>> Hi there,
>> 
>> Just noticed that ${"don't do this"?js_string?js_string} would
>> output "don\\'t do this". Shouldn't the built-in be smart enough to
>> notice when quotes are already escaped ? Or is there a good reason for this ?
> 
> There is. Simply put, this is how it's correct. Like, it's possible
> that the text *literally* contains \', for with the JavaScript string
> literal syntax is \\'.
> 
>> I'd rather it doesn't double-escape, so I can add ?js_string to my
>> templates safely, even if some of the model's code is already doing
>> escaping for some reason.
> 
> If an application tries to escape something twice, that's a bug in the
> application that should be fixed. Also, it's impossible to detect if a
> string was already escaped or not, because a string can contain any
> combination of characters, and an escaped string has the same type as
> an unescaped one (i.e., there's not EscapedString VS String class).
> Surely you can make a guess, which in some concrete application
> possibly good enough, but it can't be done on the
> template-language-level, after all FreeMarker is used for source code
> generation among others, so we can't assume that the content of a
> string is in a human language, and hence can't contain \' and such.
> 
>> Thoughts ?
>> 
>> Cheers,
>> 
>> -greg
> 
> -- 
> Best regards,
> Daniel Dekany
> 
> 
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