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Posted to dev@tapestry.apache.org by "Howard M. Lewis Ship (Commented) (JIRA)" <ji...@apache.org> on 2011/10/17 23:37:10 UTC
[jira] [Commented] (TAP5-171) Filter out attributes with default
value (from DTD) when parsing templates
[ https://issues.apache.org/jira/browse/TAP5-171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129230#comment-13129230 ]
Howard M. Lewis Ship commented on TAP5-171:
-------------------------------------------
I'm very confused as to why I never see this? Under what JDK/platform/etc. does this manifest?
> Filter out attributes with default value (from DTD) when parsing templates
> --------------------------------------------------------------------------
>
> Key: TAP5-171
> URL: https://issues.apache.org/jira/browse/TAP5-171
> Project: Tapestry 5
> Issue Type: Improvement
> Components: tapestry-core
> Affects Versions: 5.2, 5.0.18
> Environment: Sun JDK 1.5
> Reporter: Folke Behrens
> Priority: Minor
> Labels: tapestry5-review-for-closing
> Fix For: 5.3
>
> Attachments: TAP5-171 5.2.4.patch, Test.html, attributes2-dtd-default.patch
>
>
> Consider testing for org.xml.sax.ext.Attributes2 and use Attributes2.isSpecified(int) to check if the attribute is really specified or just a default declaration.
> With this you can e.g. test if <a shape="rect" > is really set. Test for "http://xml.org/sax/features/use-attributes2" or just use "instanceof":
> if (attributes instanceof Attributes2) {
> if (( (Attributes2)attributes ).isSpecified(i)) {
> // do something
> }
> }
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