import { Rule } from './rule-interface';
/**
* MD021: Multiple spaces inside hashes on closed atx style heading
*
* This rule is triggered when more than one space is used to separate the
* closing hash characters from the heading text in a closed atx style heading.
* This rule is consistent with the standard CommonMark specification.
*/
export const name = 'MD021';
export const description = 'Multiple spaces inside hashes on closed atx style heading';
/**
* Fix headings with multiple spaces inside closing hashes by reducing to a single 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]+(.+?)[ \t]{2,}#$/m, '$1 $2 #')
);
}
/**
* Rule implementation for MD021
*/
export const rule: Rule = {
name,
description,
fix
};
export default rule;
