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Add double underscore syntax for bold markdown (#3733)

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* Add double underscore syntax for bold markdown
see https://github.com/syuilo/misskey/pull/3732
this allows bold text through either **text** or __text__

* Add tests for underscore bold mfm syntax
This commit is contained in:
ibrokemypie 2019-01-20 20:00:55 +11:00 committed by syuilo
parent 8fcf75f77c
commit 53481accf1
2 changed files with 24 additions and 1 deletions
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2
src/mfm/parser.ts
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@ -154,7 +154,7 @@ const mfm = P.createLanguage({
//#region Bold
bold: r =>
P.regexp(/\*\*([\s\S]+?)\*\*/, 1)
P.regexp(/(\*\*|__)([\s\S]+?)\1/, 2)
.map(x => createTree('bold', P.alt(
r.strike,
r.italic,

23
test/mfm.ts
View file

@ -177,6 +177,29 @@ describe('MFM', () => {
text('bar'),
]);
});
it('with underscores', () => {
const tokens = analyze('__foo__');
assert.deepStrictEqual(tokens, [
tree('bold', [
text('foo')
], {}),
]);
});
it('mixed syntax', () => {
const tokens = analyze('**foo__');
assert.deepStrictEqual(tokens, [
text('**foo__'),
]);
});
it('mixed syntax', () => {
const tokens = analyze('__foo**');
assert.deepStrictEqual(tokens, [
text('__foo**'),
]);
});
});
it('big', () => {