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LabelHighlighter extension

Add Highlight.js syntax-highlighting to Labels.

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An extension to Vaadins Label. The label will be syntax-highlighted after this extension is attached to it. After changing the text of the label update() must be called to updtae the syntax-highlighting. Alternatively setValue(String value) of this class takes care of changing the text and formatting it.

Uses Highlight.js 9.12.0 from cloudflare cdn.

Sample code

final Label labelc = new Label("select * from thetable where thevalue = 'Hello'",ContentMode.HTML);
final LabelHighlighter label = new LabelHighlighter(labelc);
/* … */
label.setValue("update thetable set thevalue = 'world'");

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