73 lines
2.1 KiB
JavaScript
73 lines
2.1 KiB
JavaScript
/**
|
|
* @author Toru Nagashima <https://github.com/mysticatea>
|
|
* See LICENSE file in root directory for full license.
|
|
*/
|
|
"use strict"
|
|
|
|
const { RegExpValidator } = require("regexpp")
|
|
const { getRegExpCalls } = require("../utils")
|
|
|
|
/**
|
|
* Verify a given regular expression.
|
|
* @param {RuleContext} context The rule context to report.
|
|
* @param {Node} node The AST node to report.
|
|
* @param {string} pattern The pattern part of a RegExp.
|
|
* @param {string} flags The flags part of a RegExp.
|
|
* @returns {void}
|
|
*/
|
|
function verify(context, node, pattern, flags) {
|
|
try {
|
|
let found = false
|
|
|
|
new RegExpValidator({
|
|
onUnicodePropertyCharacterSet() {
|
|
found = true
|
|
},
|
|
}).validatePattern(pattern, 0, pattern.length, flags.includes("u"))
|
|
|
|
if (found) {
|
|
context.report({ node, messageId: "forbidden" })
|
|
}
|
|
} catch (error) {
|
|
//istanbul ignore else
|
|
if (error.message.startsWith("Invalid regular expression:")) {
|
|
return
|
|
}
|
|
//istanbul ignore next
|
|
throw error
|
|
}
|
|
}
|
|
|
|
module.exports = {
|
|
meta: {
|
|
docs: {
|
|
description: "disallow RegExp Unicode property escape sequences.",
|
|
category: "ES2018",
|
|
recommended: false,
|
|
url:
|
|
"http://mysticatea.github.io/eslint-plugin-es/rules/no-regexp-unicode-property-escapes.html",
|
|
},
|
|
fixable: null,
|
|
messages: {
|
|
forbidden:
|
|
"ES2018 RegExp Unicode property escape sequences are forbidden.",
|
|
},
|
|
schema: [],
|
|
type: "problem",
|
|
},
|
|
create(context) {
|
|
return {
|
|
"Literal[regex]"(node) {
|
|
const { pattern, flags } = node.regex
|
|
verify(context, node, pattern || "", flags || "")
|
|
},
|
|
|
|
"Program:exit"() {
|
|
const scope = context.getScope()
|
|
for (const { node, pattern, flags } of getRegExpCalls(scope)) {
|
|
verify(context, node, pattern || "", flags || "")
|
|
}
|
|
},
|
|
}
|
|
},
|
|
}
|