31 lines
897 B
Plaintext
31 lines
897 B
Plaintext
/**
|
|
* @fileoverview Common utils for AST.
|
|
*
|
|
* This file contains only shared items for core and rules.
|
|
* If you make a utility for rules, please see `../rules/utils/ast-utils.js`.
|
|
*
|
|
* @author Toru Nagashima <https://github.com/mysticatea>
|
|
*/
|
|
"use strict";
|
|
|
|
const breakableTypePattern =
|
|
/^(?:(?:Do)?While|For(?:In|Of)?|Switch)Statement$/u;
|
|
const lineBreakPattern = /\r\n|[\r\n\u2028\u2029]/u;
|
|
const shebangPattern = /^#!([^\r\n]+)/u;
|
|
|
|
/**
|
|
* Creates a version of the `lineBreakPattern` regex with the global flag.
|
|
* Global regexes are mutable, so this needs to be a function instead of a constant.
|
|
* @returns {RegExp} A global regular expression that matches line terminators
|
|
*/
|
|
function createGlobalLinebreakMatcher() {
|
|
return new RegExp(lineBreakPattern.source, "gu");
|
|
}
|
|
|
|
module.exports = {
|
|
breakableTypePattern,
|
|
lineBreakPattern,
|
|
createGlobalLinebreakMatcher,
|
|
shebangPattern,
|
|
};
|