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import { markInputRule } from '@tiptap/core';
import { Link } from '@tiptap/extension-link';
export const markdownLinkSyntaxInputRuleRegExp = /(?:^|\s)\[([\w|\s|-]+)\]\((?<href>.+?)\)$/gm;
export const urlSyntaxRegExp = /(?:^|\s)(?<href>(?:https?:\/\/|www\.)[\S]+)(?:\s|\n)$/gim;
const extractHrefFromMatch = (match) => {
return { href: match.groups.href };
};
export const extractHrefFromMarkdownLink = (match) => {
/**
* Removes the last capture group from the match to satisfy
* tiptap markInputRule expectation of having the content as
* the last capture group in the match.
*
* https://github.com/ueberdosis/tiptap/blob/%40tiptap/core%402.0.0-beta.75/packages/core/src/inputRules/markInputRule.ts#L11
*/
match.pop();
return extractHrefFromMatch(match);
};
export const tiptapExtension = Link.extend({
addInputRules() {
return [
markInputRule(markdownLinkSyntaxInputRuleRegExp, this.type, extractHrefFromMarkdownLink),
markInputRule(urlSyntaxRegExp, this.type, extractHrefFromMatch),
];
},
addAttributes() {
return {
...this.parent?.(),
href: {
default: null,
parseHTML: (element) => {
return {
href: element.getAttribute('href'),
};
},
},
canonicalSrc: {
default: null,
parseHTML: (element) => {
return {
canonicalSrc: element.dataset.canonicalSrc,
};
},
},
};
},
}).configure({
openOnClick: false,
});
export const serializer = {
open() {
return '[';
},
close(state, mark) {
const href = mark.attrs.canonicalSrc || mark.attrs.href;
return `](${state.esc(href)}${mark.attrs.title ? ` ${state.quote(mark.attrs.title)}` : ''})`;
},
};
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