import { Rule } from './rule-interface';
/**
* MD020: No space inside hashes on closed atx style heading
*
* This rule is triggered when closing hash characters in an atx style heading
* are not separated from the heading text by a space. This rule is consistent
* with the standard CommonMark specification.
*/
export const name = 'MD020';
export const description = 'No space inside hashes on closed atx style heading';
/**
* Fix headings with no space inside closing hashes by adding a space
* @param lines Array of string lines to fix
* @returns Fixed lines array with proper spacing inside closing hashes
*/
export function fix(lines: string[]): string[] {
return lines.map(line =>
line.replace(/^(#{1,6})[ \t]+([^#\s].*?)[ \t]*#$/m, '$1 $2 #')
);
}
/**
* Rule implementation for MD020
*/
export const rule: Rule = {
name,
description,
fix
};
export default rule;
