Long files can cause freezes

[mickaelistria]

See eclipse-wildwebdeveloper/wildwebdeveloper#667
When frozen, the UI Freeze monitoring reports the following stack traces:

Stack Trace
	at org.eclipse.tm4e.core.internal.css.CSSConditionalSelector.nbMatch(CSSConditionalSelector.java:61)
	at org.eclipse.tm4e.core.theme.css.CSSParser.getBestStyle(CSSParser.java:73)
	at org.eclipse.tm4e.ui.themes.css.CSSTokenProvider.getToken(CSSTokenProvider.java:71)
	at org.eclipse.tm4e.ui.themes.Theme.getToken(Theme.java:83)
	at org.eclipse.tm4e.ui.text.TMPresentationReconciler.toToken(TMPresentationReconciler.java:614)
	at org.eclipse.tm4e.ui.text.TMPresentationReconciler.colorize(TMPresentationReconciler.java:560)
	at org.eclipse.tm4e.ui.text.TMPresentationReconciler$InternalListener.textChanged(TMPresentationReconciler.java:309)
	at org.eclipse.jface.text.TextViewer.updateTextListeners(TextViewer.java:2709)
	at org.eclipse.jface.text.TextViewer.invalidateTextPresentation(TextViewer.java:3353)

or

Stack Trace
	at org.eclipse.tm4e.core.internal.css.CSSAndCondition.nbMatch(CSSAndCondition.java:32)
	at org.eclipse.tm4e.core.internal.css.CSSConditionalSelector.nbMatch(CSSConditionalSelector.java:62)
	at org.eclipse.tm4e.core.theme.css.CSSParser.getBestStyle(CSSParser.java:73)
	at org.eclipse.tm4e.ui.themes.css.CSSTokenProvider.getToken(CSSTokenProvider.java:71)
	at org.eclipse.tm4e.ui.themes.Theme.getToken(Theme.java:83)
	at org.eclipse.tm4e.ui.text.TMPresentationReconciler.toToken(TMPresentationReconciler.java:614)
	at org.eclipse.tm4e.ui.text.TMPresentationReconciler.colorize(TMPresentationReconciler.java:560)
	at org.eclipse.tm4e.ui.text.TMPresentationReconciler$InternalListener.textChanged(TMPresentationReconciler.java:309)
	at org.eclipse.jface.text.TextViewer.updateTextListeners(TextViewer.java:2709)
	at org.eclipse.jface.text.TextViewer.invalidateTextPresentation(TextViewer.java:3353)

and others, all mentioning TMPresentationReconciler.colorize()

[sebthom]

I cannot reproduce this with the latest TM4E release. I can see how the file gets incrementally colorized without the UI freezing.
I tested it with the mapper_v3.js file attached to the referenced issue.

[mickaelistria]

I don't think I got annoyed by this issue for a while, so I'm fine closing this old and probably outdated report.