Invalid error "unescaped or unmatched closing brace"

[jens-duttke]

The latest Babel version (7.8.7) is using this package in the latest version (0.6.3), which now produces an error (with Babel 7.8.4 this error did not occur).

This regular expression is an absolutely valid JavaScript expression:

/\{([^}]+)\}/gu

But regjsparser throws the following error:
{code}
Module build failed (from ../node_modules/babel-loader/lib/index.js):
SyntaxError: ...\src\ts\context\i18n\index.tsx: unescaped or unmatched closing brace at position 6
{([^}]+)}
^
at bail (...\node_modules\regjsparser\parser.js:1129:13)
at createCharacter (...\node_modules\regjsparser\parser.js:237:11)
at parseClassAtomNoDash (...\node_modules\regjsparser\parser.js:1105:16)
at parseClassAtom (...\node_modules\regjsparser\parser.js:1094:16)
at parseNonemptyClassRanges (...\node_modules\regjsparser\parser.js:1052:18)
at parseClassRanges (...\node_modules\regjsparser\parser.js:1008:15)
at parseCharacterClass (...\node_modules\regjsparser\parser.js:986:15)
at parseAtom (...\node_modules\regjsparser\parser.js:649:22)
at parseTerm (...\node_modules\regjsparser\parser.js:490:18)
at parseAlternative (...\node_modules\regjsparser\parser.js:463:21)
at parseDisjunction (...\node_modules\regjsparser\parser.js:443:16)
at finishGroup (...\node_modules\regjsparser\parser.js:520:18)
at parseGroup (...\node_modules\regjsparser\parser.js:516:14)
at parseAtom (...\node_modules\regjsparser\parser.js:665:16)
at parseTerm (...\node_modules\regjsparser\parser.js:490:18)
at parseAlternative (...\node_modules\regjsparser\parser.js:463:21)
{code}

If I escape the }, this error does is gone:

/\{([^\}]+)\}/gu

but here, the ESLint rule "no-useless-escape", correctly complains about the useless escaping.

[jviereck]

Pushed v0.6.4 including #102 to NPM: https://www.npmjs.com/package/regjsparser/v/0.6.4.