45 lines
1.6 KiB
TypeScript
45 lines
1.6 KiB
TypeScript
/** Matches URLs, excluding characters that are never valid unencoded in URLs per RFC 3986. */
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export const urlRawRegex = () => /\bhttps?:\/\/[^\s<>[\]]+/gi; // JS regexp has internal states, so always use a new instance
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/** Strip trailing punctuation that is likely not part of the URL. */
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export function trimUrlPunctuation(url: string): string {
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url = url.replace(/[.,;:'"]+$/, '');
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// Strip trailing closing parens only if unbalanced (not part of the URL like Wikipedia links)
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while (url.endsWith(')') && (url.match(/\(/g) || []).length < (url.match(/\)/g) || []).length) {
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url = url.slice(0, -1);
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}
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return url;
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}
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export function urlQueryEscape(s: string) {
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// See "TestQueryEscape" in backend
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent#encoding_for_rfc3986
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return encodeURIComponent(s).replace(
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/[!'()*]/g,
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(c) => `%${c.charCodeAt(0).toString(16).toUpperCase()}`,
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).replaceAll('%20', '+');
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}
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export function pathEscape(s: string): string {
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// See "TestPathEscape" in backend
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return encodeURIComponent(s).replace(
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/[!'()*]/g,
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(c) => `%${c.charCodeAt(0).toString(16).toUpperCase()}`,
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).replaceAll(/%(\w\w)/g, (v) => {
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switch (v) {
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case '%24': return '$';
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case '%26': return '&';
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case '%2B': return '+';
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case '%3A': return ':';
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case '%3D': return '=';
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case '%40': return '@';
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default: return v;
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}
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});
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}
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export function pathEscapeSegments(s: string): string {
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// The same as backend's PathEscapeSegments
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return s.split('/').map(pathEscape).join('/');
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}
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