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From "Roger Whitcomb (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIVOT-960) Implement simple macro system in JSONSerializer
Date Wed, 05 Nov 2014 21:51:33 GMT

    [ https://issues.apache.org/jira/browse/PIVOT-960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14199177#comment-14199177

Roger Whitcomb commented on PIVOT-960:

Okay, I implemented this using "${NAME}" syntax, and did some more thorough testing (added
to the JSONSerializerTest) using an update "map.json" with a bunch of macro definitions in
it.  Committed to "trunk":
Sending        core\src\org\apache\pivot\json\JSONSerializer.java
Adding         core\src\org\apache\pivot\serialization\MacroReader.java
Sending        core\test\org\apache\pivot\json\test\JSONSerializerTest.java
Sending        core\test\org\apache\pivot\json\test\map.json
Transmitting file data ....
Committed revision 1636971.

> Implement simple macro system in JSONSerializer
> -----------------------------------------------
>                 Key: PIVOT-960
>                 URL: https://issues.apache.org/jira/browse/PIVOT-960
>             Project: Pivot
>          Issue Type: Improvement
>          Components: core-json
>    Affects Versions: 2.0.4
>         Environment: All
>            Reporter: Roger Whitcomb
>            Assignee: Roger Whitcomb
>            Priority: Minor
>             Fix For: 2.1
>         Attachments: 960.patch
> It occurred to me since we are using JSON style sheets to style our application, and
it is getting quite big, that a macro system (maybe similar to C/C++ with #define or something
similar) would be useful, especially for repeated colors, and other constants (like padding
values, fonts, etc.)  This would enable using custom values consistently while avoiding inconsistencies
due to typos or changes introduced one place and not others.
> I was thinking of a simple
> #define NAME value
> as in C/C++, and then using $(NAME) as the substitution token.  This is easily implemented
in JSONSerializer.
> I'm open to suggestions for the syntax, but I believe the feature will be very useful,
especially for the JSON stylesheet.

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