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Add checks to ensure in-word formatting chars aren't replaced #101

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2 changes: 1 addition & 1 deletion src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ function encodeAttr(str) {

/** Parse Markdown into an HTML String. */
export default function parse(md, prevLinks) {
let tokenizer = /((?:^|\n+)(?:\n---+|\* \*(?: \*)+)\n)|(?:^``` *(\w*)\n([\s\S]*?)\n```$)|((?:(?:^|\n+)(?:\t| {2,}).+)+\n*)|((?:(?:^|\n)([>*+-]|\d+\.)\s+.*)+)|(?:!\[([^\]]*?)\]\(([^)]+?)\))|(\[)|(\](?:\(([^)]+?)\))?)|(?:(?:^|\n+)([^\s].*)\n(-{3,}|={3,})(?:\n+|$))|(?:(?:^|\n+)(#{1,6})\s*(.+)(?:\n+|$))|(?:`([^`].*?)`)|( \n\n*|\n{2,}|__|\*\*|[_*]|~~)/gm,
let tokenizer = /((?:^|\n+)(?:\n---+|\* \*(?: \*)+)\n)|(?:^``` *(\w*)\n([\s\S]*?)\n```$)|((?:(?:^|\n+)(?:\t| {2,}).+)+\n*)|((?:(?:^|\n)([>*+-]|\d+\.)\s+.*)+)|(?:!\[([^\]]*?)\]\(([^)]+?)\))|(\[)|(\](?:\(([^)]+?)\))?)|(?:(?:^|\n+)([^\s].*)\n(-{3,}|={3,})(?:\n+|$))|(?:(?:^|\n+)(#{1,6})\s*(.+)(?:\n+|$))|(?:`([^`].*?)`)|( \n\n*|\n{2,}|(?<=\W|^|$)(?<![_*])__|__(?=\W|^|$)(?![_*])|(?<=\W|^|$)(?<![_*])\*\*|\*\*(?=\W|^|$)(?![_*])|(?<=\W|^|$)(?<![_*])[_*]|[_*](?=\W|^|$)(?![_*])|~~)/gm,
context = [],
out = '',
links = prevLinks || {},
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7 changes: 7 additions & 0 deletions test/index.js
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Expand Up @@ -18,6 +18,13 @@ describe('snarkdown()', () => {
it('parses italics with _', () => {
expect(snarkdown('I _like_ tiny libraries')).to.equal('I <em>like</em> tiny libraries');
});

it('ignores words with special formatting', () => {
expect(snarkdown('I like tiny*libraries')).to.equal('I like tiny*libraries');
expect(snarkdown('I like tiny_libraries')).to.equal('I like tiny_libraries');
expect(snarkdown('I like tiny**libraries')).to.equal('I like tiny**libraries');
expect(snarkdown('I like tiny__libraries')).to.equal('I like tiny__libraries');
});
});

describe('titles', () => {
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