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feat: no-control-regex support v flag #17405

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merged 3 commits into from
Jul 26, 2023
Merged

feat: no-control-regex support v flag #17405

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451894b
feat: `no-control-regex` support v flag
ota-meshi Jul 23, 2023
d583810
test: add testcases
ota-meshi Jul 25, 2023
89f418f
fix: false positives for `uv` flags
ota-meshi Jul 25, 2023
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3 changes: 2 additions & 1 deletion lib/rules/no-control-regex.js
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Expand Up @@ -32,10 +32,11 @@ const collector = new (class {

collectControlChars(regexpStr, flags) {
const uFlag = typeof flags === "string" && flags.includes("u");
const vFlag = typeof flags === "string" && flags.includes("v");

try {
this._source = regexpStr;
this._validator.validatePattern(regexpStr, void 0, void 0, uFlag); // Call onCharacter hook
this._validator.validatePattern(regexpStr, void 0, void 0, { unicode: uFlag, unicodeSets: vFlag }); // Call onCharacter hook
} catch {

// Ignore syntax errors in RegExp.
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14 changes: 13 additions & 1 deletion tests/lib/rules/no-control-regex.js
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Expand Up @@ -33,7 +33,10 @@ ruleTester.run("no-control-regex", rule, {
String.raw`new RegExp("\\u{20}", "u")`,
String.raw`new RegExp("\\u{1F}")`,
String.raw`new RegExp("\\u{1F}", "g")`,
String.raw`new RegExp("\\u{1F}", flags)` // when flags are unknown, this rule assumes there's no `u` flag
String.raw`new RegExp("\\u{1F}", flags)`, // when flags are unknown, this rule assumes there's no `u` flag
String.raw`new RegExp("[\\q{\\u{20}}]", "v")`,
{ code: String.raw`/[\u{20}--B]/v`, parserOptions: { ecmaVersion: 2024 } }

],
invalid: [
{ code: String.raw`var regex = /\x1f/`, errors: [{ messageId: "unexpected", data: { controlChars: "\\x1f" }, type: "Literal" }] },
Expand Down Expand Up @@ -85,6 +88,15 @@ ruleTester.run("no-control-regex", rule, {
{
code: String.raw`new RegExp("\\u{1F}", "gui")`,
errors: [{ messageId: "unexpected", data: { controlChars: "\\x1f" }, type: "Literal" }]
},
{
code: String.raw`new RegExp("[\\q{\\u{1F}}]", "v")`,
errors: [{ messageId: "unexpected", data: { controlChars: "\\x1f" }, type: "Literal" }]
},
{
code: String.raw`/[\u{1F}--B]/v`,
parserOptions: { ecmaVersion: 2024 },
errors: [{ messageId: "unexpected", data: { controlChars: "\\x1f" }, type: "Literal" }]
}
]
});