Forwards-compatible syntax proposal

[Mike Samuel]

2008/5/13 <es4-discuss-request at mozilla.org>:

>
> what about
> http://wiki.ecmascript.org/doku.php?id=proposals:versioning
> and
> http://wiki.ecmascript.org/doku.php?id=discussion:versioning
>
> ?
>
> if I read those documents well
> ES1-4 support backward-compatibility
>
> and later for ES5  etc.
> we could either use
> application/ecmascript;version=5
>
> or the global
> __MAX_ECMASCRIPT_VERSION__
>
> or the pragma
> use edition 5
>

On developer tools and mime-types, subversion will treat
application/ecmascript as binary.

http://subversion.tigris.org/faq.html#binary-files

Subversion treats the following files as text:

   - Files with no svn:mime-type
   - Files with a svn:mime-type starting "text/"
   - Files with a svn:mime-type equal to "image/x-xbitmap"
   - Files with a svn:mime-type equal to "image/x-xpixmap"

All other files are treated as binary, meaning that Subversion will:

   - Not attempt to automatically merge received changes with local
   changes during svn update or svn merge
   - Not show the differences as part of svn diff
   - Not show line-by-line attribution for svn blame
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