1. 20 Jun 2010 8:06 PM #1
    mark.wharton
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    Question isformpost + isupload response back-slash question

    isformpost + isupload response back-slash question


    Hello,

    I'm working through the Ext.Direct spec to develop an Ext.Direct router and have a question about the isformpost + isupload response paragraph...

    <html><body><textarea>{YOUR JSON RESPONSE HERE}</textarea></body></html>
    &quot; must be back-slashed because the textarea will convert them to actual quotes. Therefore you must do a regular expression (/"/, "\"")

    In my browser I see "&quot; must be back-slashed because the textarea will convert them to actual quotes" which makes sense (i.e. &quot; will become "). It's the next sentence "Therefore you must do a regular expression (/"/, "\"")" which has me confused. I don't see how that regular expression will do anything to address the &quot; issue.

    Maybe it's just a browser character encoding/decoding/display issue. I have attached a screen shot in case the original text is lost in the post.

    Thanks,

    Mark
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  2. 28 Jun 2010 9:54 AM #2
    aconran
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    Mark -

    The issue is because the following HTML:
    Code:
    <textarea>
&quot;
</textarea>
    Will be interpreted by the browser as:
    Code:
    <textarea>
"
</textarea>
    Therefore executing some code like:
    Code:
                    $json = preg_replace("/&quot;/", '\\&quot;', $json);
    will escape the quotes generating:

    Code:
    <textarea>
\&quot;
</textarea>
    Aaron Conran
    @aconran
    Sencha Architect Development Team
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  3. 28 Jun 2010 5:31 PM #3
    mark.wharton
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    Thanks for your response Aaron! That clears it up for me...

    Actually when looking at the spec source the meaning is clear (I only just did that now) so it's a problem with browser rendering which should probably be fixed.

    Cheers,

    Mark
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