Preserve single quote attribute declarations

Javascript libraries are challenging us these days with their complicated syntaxes.

The following is valid XML (see point [10] of http://www.w3.org/TR/xml/#sec-common-syn):

    <div data-options='{"number" : 3}'></div>

but Thymeleaf (as of 2.1.3.RELEASE) will transform it to the invalid

    <div data-options="{"number" : 3}"></div>

As a workaround, a user could use

    <div data-options="{&quot;number&quot; : 3}"></div>

or even

    <div data-options="{'number' : 3}"></div>

if their JSON parser allows this syntax (not JSON standard).

As Javascript libraries are becoming more and more popular, maybe Thymeleaf should preserve the type of quotes used originally in the template.

Question asked at http://forum.thymeleaf.org/Thymeleaf-process-on-single-quoted-attributes-td4028320.html

[danielfernandez]

Already in 3.0.0-SNAPSHOT

[danielfernandez]

This situation will no longer happen in Thymeleaf 3.0, as the new underlying parser (attoparser) will preserve the original state of non-processable attributes: type of quotes, specification or not of a value, etc.