joplin/ReactNativeClient/lib/markJsUtils.js

const markJsUtils = {};

markJsUtils.markKeyword = (mark, keyword, stringUtils, extraOptions = null) => {
	if (typeof keyword === 'string') {
		keyword = {
			type: 'text',
			value: keyword,
		};
	}

	const isBasicSearch = ['ja', 'zh', 'ko'].indexOf(keyword.scriptType) >= 0;

	let value = keyword.value;
	let accuracy = keyword.accuracy ? keyword.accuracy : { value: 'exactly', limiters: ':;.,-–—‒_(){}[]!\'"+='.split('') };
	if (isBasicSearch) accuracy = 'partially';
	if (keyword.type === 'regex') {
		accuracy = 'complementary';
		// Remove the trailing wildcard and "accuracy = complementary" will take care of
		// highlighting the relevant keywords.

		// Known bug: it will also highlight word that contain the term as a suffix for example for "ent*", it will highlight "present"
		// which is incorrect (it should only highlight what starts with "ent") but for now will do. Mark.js doesn't have an option
		// to tweak this behaviour.
		value = keyword.value.substr(0, keyword.value.length - 1);
	}

	mark.mark(
		[value],
		Object.assign(
			{},
			{
				accuracy: accuracy,
			},
			extraOptions
		)
	);
};

if (typeof module !== 'undefined') {
	module.exports = markJsUtils;
}