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Make sanitizeSlug immutable.

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Thanks @erquhart!
This commit is contained in:
Caleb 2017-10-03 09:48:43 -06:00
parent 72492749d9
commit 8fb326ff2b
1 changed files with 13 additions and 9 deletions
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22
src/lib/urlHelper.js
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@ -1,6 +1,6 @@
import url from 'url';
import sanitizeFilename from 'sanitize-filename';
import { isString, escapeRegExp } from 'lodash';
import { isString, escapeRegExp, flow, partialRight } from 'lodash';
function getUrl(url, direct) {
return `${ direct ? '/#' : '' }${ url }`;
@ -33,18 +33,22 @@ export function sanitizeIRI(str, { replacement }) {
export function sanitizeSlug(str, { replacement = '-' }) {
if (!isString(str)) throw "`sanitizeSlug` only accepts strings as input.";
if (!isString(replacement)) throw "the `sanitizeSlug` replacement character must be a string.";
let slug = str;
// Sanitize as IRI (i18n URI) and as filename.
slug = sanitizeIRI(slug, {replacement});
slug = sanitizeFilename(slug, {replacement});
const sanitize = flow([
partialRight(sanitizeIRI, { replacement }),
partialRight(sanitizeFilename, { replacement }),
]);
const sanitizedSlug = sanitize(str);
// Remove any doubled or trailing replacement characters (that were added in the sanitizers).
const doubleReplacement = new RegExp('(?:' + escapeRegExp(replacement) + ')+', 'g');
const trailingReplacment = new RegExp(escapeRegExp(replacement) + '$')
slug = slug.replace(doubleReplacement, '-').replace(trailingReplacment, '');
const trailingReplacment = new RegExp(escapeRegExp(replacement) + '$');
const normalizedSlug = sanitizedSlug
.replace(doubleReplacement, '-')
.replace(trailingReplacment, '');
return slug;
return normalizedSlug;
}
export function urlize(string) {