eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
142 lines (141 loc) • 5.74 kB
JavaScript
;
/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Sonar Source-Available License for more details.
*
* You should have received a copy of the Sonar Source-Available License
* along with this program; if not, see https://sonarsource.com/license/ssal/
*/
// https://sonarsource.github.io/rspec/#/rspec/S5867/javascript
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const index_js_1 = require("../helpers/index.js");
const meta_js_1 = require("./meta.js");
const rule_template_js_1 = require("../helpers/regex/rule-template.js");
const location_js_1 = require("../helpers/regex/location.js");
exports.rule = (0, rule_template_js_1.createRegExpRule)(context => {
const unicodeProperties = [];
const unicodeCharacters = [];
let rawPattern;
let isUnicodeEnabled = false;
return {
onRegExpLiteralEnter: (node) => {
rawPattern = node.raw;
isUnicodeEnabled = node.flags.unicode;
},
onQuantifierEnter: (quantifier) => {
if (isUnicodeEnabled) {
return;
}
/* \u{hhhh}, \u{hhhhh} */
const { raw, min: hex } = quantifier;
if (raw.startsWith('\\u') &&
!raw.includes(',') &&
['hhhh'.length, 'hhhhh'.length].includes(hex.toString().length)) {
unicodeCharacters.push(quantifier);
}
},
onCharacterEnter: (character) => {
if (isUnicodeEnabled) {
return;
}
const c = character.raw;
if (c !== '\\p' && c !== '\\P') {
return;
}
let state = 'start';
let offset = character.start + c.length;
let nextChar;
do {
nextChar = rawPattern[offset];
offset++;
switch (state) {
case 'start':
if (nextChar === '{') {
state = 'openingBracket';
}
else {
state = 'end';
}
break;
case 'openingBracket':
if (/[a-zA-Z]/.test(nextChar)) {
state = 'alpha';
}
else {
state = 'end';
}
break;
case 'alpha':
if (/[a-zA-Z]/.test(nextChar)) {
state = 'alpha';
}
else if (nextChar === '=') {
state = 'equal';
}
else if (nextChar === '}') {
state = 'closingBracket';
}
else {
state = 'end';
}
break;
case 'equal':
if (/[a-zA-Z]/.test(nextChar)) {
state = 'alpha1';
}
else {
state = 'end';
}
break;
case 'alpha1':
if (/[a-zA-Z]/.test(nextChar)) {
state = 'alpha1';
}
else if (nextChar === '}') {
state = 'closingBracket';
}
else {
state = 'end';
}
break;
case 'closingBracket':
state = 'end';
unicodeProperties.push({ character, offset: offset - c.length - 1 });
break;
}
} while (state !== 'end');
},
onRegExpLiteralLeave: (regexp) => {
if (!isUnicodeEnabled && (unicodeProperties.length > 0 || unicodeCharacters.length > 0)) {
const secondaryLocations = [];
unicodeProperties.forEach(p => {
const loc = (0, location_js_1.getRegexpLocation)(context.node, p.character, context, [0, p.offset]);
if (loc) {
secondaryLocations.push((0, index_js_1.toSecondaryLocation)({ loc }, 'Unicode property'));
}
});
unicodeCharacters.forEach(c => {
const loc = (0, location_js_1.getRegexpLocation)(context.node, c, context);
if (loc) {
secondaryLocations.push((0, index_js_1.toSecondaryLocation)({ loc }, 'Unicode character'));
}
});
context.reportRegExpNode({
message: `Enable the 'u' flag for this regex using Unicode constructs.`,
node: context.node,
regexpNode: regexp,
}, secondaryLocations);
}
},
};
}, (0, index_js_1.generateMeta)(meta_js_1.meta, undefined, true));