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refactor mfm extract (#7434)

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* refactor extractCustomEmojisFromMfm()

* refactor extract-hashtags

* refactor extract-mentions

* refactor extract-hashtags

* refactor extract-url-from-mfm

* refactor extract-mentions
This commit is contained in:
marihachi
2021-04-10 17:50:18 +09:00
committed by GitHub
parent 56a28923ca
commit 3a6331693a
9 changed files with 34 additions and 53 deletions
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28
src/misc/extract-url-from-mfm.ts
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@@ -6,29 +6,21 @@ import { unique } from '@/prelude/array';
const removeHash = (x: string) => x.replace(/#[^#]*$/, '');
export function extractUrlFromMfm(nodes: mfm.MfmNode[], respectSilentFlag = true): string[] {
const urlNodes = [] as (mfm.MfmUrl | mfm.MfmLink)[];
let urls = [] as string[];
function scan(nodes: mfm.MfmNode[]) {
for (const node of nodes) {
if (node.type === 'url') {
urlNodes.push(node);
} else if (node.type === 'link') {
if (!respectSilentFlag || !node.props.silent) {
urlNodes.push(node);
}
} else if (node.children) {
scan(node.children);
}
mfm.inspect(nodes, (node) => {
if (node.type === 'url') {
urls.push(node.props.url);
} else if (node.type === 'link' && (!respectSilentFlag || !node.props.silent)) {
urls.push(node.props.url);
}
}
});
scan(nodes);
const urls = unique(urlNodes.map(x => x.props.url));
urls = unique(urls);
return urls.reduce((array, url) => {
const removed = removeHash(url);
if (!array.map(x => removeHash(x)).includes(removed)) array.push(url);
const urlWithoutHash = removeHash(url);
if (!array.map(x => removeHash(x)).includes(urlWithoutHash)) array.push(url);
return array;
}, [] as string[]);
}