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27 lines
803 B
JavaScript
27 lines
803 B
JavaScript
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/**
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* @import {Code} from 'micromark-util-types'
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*/
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import { markdownLineEndingOrSpace, unicodePunctuation, unicodeWhitespace } from 'micromark-util-character';
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/**
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* Classify whether a code represents whitespace, punctuation, or something
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* else.
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*
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* Used for attention (emphasis, strong), whose sequences can open or close
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* based on the class of surrounding characters.
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*
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* > 👉 **Note**: eof (`null`) is seen as whitespace.
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*
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* @param {Code} code
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* Code.
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* @returns {typeof constants.characterGroupWhitespace | typeof constants.characterGroupPunctuation | undefined}
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* Group.
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*/
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export function classifyCharacter(code) {
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if (code === null || markdownLineEndingOrSpace(code) || unicodeWhitespace(code)) {
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return 1;
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}
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if (unicodePunctuation(code)) {
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return 2;
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}
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}
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