b779beb695
Allows to generate an URL that make highlight in web pages (see https://developer.mozilla.org/en-US/docs/Web/Text_fragments)
36 lines
1.2 KiB
TypeScript
36 lines
1.2 KiB
TypeScript
export function getUrlWithTextFragment(
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{ url, textStartSearch, textStopSearch, prefixSearch, suffixSearch }:
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{ url: string
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textStartSearch: string
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textStopSearch?: string
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prefixSearch?: string
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suffixSearch?: string
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},
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) {
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const isValidUrl = (urlString: string) => {
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try {
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return Boolean(new URL(urlString));
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}
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catch (e) {
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return false;
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}
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};
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if (!isValidUrl(url)) {
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throw new Error('Invalid url');
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}
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if (!url.match(/^https?:\/\//)) {
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throw new Error('Url must have http:// or https:// prefix');
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}
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const [textStartSearchFirstText, ...textStartSearchOtherTexts] = textStartSearch.split(',');
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const text = `${encodeURIComponent(prefixSearch ?? '')}-,${encodeURIComponent(textStartSearchFirstText.trim())},${encodeURIComponent(textStopSearch ?? '')},-${encodeURIComponent(suffixSearch ?? '')}`
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.replace(/^-,|,(?=,)|,-$/g, '')
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.replace(/,+/g, ',');
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let textStartSearchOtherTextEncoded = textStartSearchOtherTexts.map(t => `text=${encodeURIComponent(t.trim())}`).join('&');
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if (textStartSearchOtherTextEncoded.length) {
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textStartSearchOtherTextEncoded = `&${textStartSearchOtherTextEncoded}`;
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}
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return `${url.trim()}#:~:text=${text}${textStartSearchOtherTextEncoded}`;
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}
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