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19 lines
685 B
TypeScript
19 lines
685 B
TypeScript
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import { sourceOnly } from './visual/visual'
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import { highlightSpecialChars as _highlightSpecialChars } from '@codemirror/view'
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/**
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* The built-in extension which highlights unusual whitespace characters,
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* configured to highlight additional space characters.
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*/
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export const highlightSpecialChars = (visual: boolean) =>
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sourceOnly(
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visual,
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_highlightSpecialChars({
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addSpecialChars: new RegExp(
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// non standard space characters (https://jkorpela.fi/chars/spaces.html)
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'[\u00A0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u200B\u202F\u205F\u3000\uFEFF]',
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/x/.unicode != null ? 'gu' : 'g'
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),
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})
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)
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