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fix invalid group specifier name #723

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23 changes: 19 additions & 4 deletions gramjs/extensions/markdownv2.ts
Original file line number Diff line number Diff line change
Expand Up @@ -25,10 +25,7 @@ export class MarkdownV2Parser {
message = message.replace(/\|\|(.*?)\|\|/g, "<spoiler>$1</spoiler>");

// Inline URL
message = message.replace(
/(?<!\!)\[([^\]]+)\]\(([^)]+)\)/g,
'<a href="$2">$1</a>'
);
message = replaceInnerUrl(message);

// Emoji
message = message.replace(
Expand Down Expand Up @@ -79,3 +76,21 @@ export class MarkdownV2Parser {
return text;
}
}

const replaceInnerUrl = (message: string) => {
let innerUrl = message;
const replacedMarkdownText = message.replace(
/!\[([^\[\]]*)\]\(([^)]+)\)/g,
""
);

const linkRegex = /\[([^\[\]]*)\]\(([^)]+)\)/g;

let match;
while ((match = linkRegex.exec(replacedMarkdownText)) !== null) {
const text = match[1];
const url = match[2];
innerUrl = `'<a href="${url}">${text}</a>'`;
}
return innerUrl;
};