| commit | 5e55171feb5adbc2b1d28ef4b2628d5ea9af0848 | [log] [tgz] |
|---|---|---|
| author | Mathias Bynens <mathias@qiwi.be> | Tue Jul 02 11:17:05 2019 +0200 |
| committer | Ariya Hidayat <ariya.hidayat@gmail.com> | Fri Jul 19 23:29:58 2019 -0700 |
| tree | 56547e4b532be9fd3c2579b0cc3b8f645ea575f0 | |
| parent | 24eb7ed0fc816c8b5f51087f07dc932a28766c53 [diff] |
Update identifier parsing per Unicode v12.1.0 ECMAScript follows the latest version of the Unicode Standard. Unicode v12.1.0 was officially released on May 7th, 2019. This patch updates Esprima to support the new identifier characters. Ref. https://github.com/tc39/ecma262/issues/1530. Closes gh-1978
Esprima (esprima.org, BSD license) is a high performance, standard-compliant ECMAScript parser written in ECMAScript (also popularly known as JavaScript). Esprima is created and maintained by Ariya Hidayat, with the help of many contributors.
Esprima can be used to perform lexical analysis (tokenization) or syntactic analysis (parsing) of a JavaScript program.
A simple example on Node.js REPL:
> var esprima = require('esprima'); > var program = 'const answer = 42'; > esprima.tokenize(program); [ { type: 'Keyword', value: 'const' }, { type: 'Identifier', value: 'answer' }, { type: 'Punctuator', value: '=' }, { type: 'Numeric', value: '42' } ] > esprima.parseScript(program); { type: 'Program', body: [ { type: 'VariableDeclaration', declarations: [Object], kind: 'const' } ], sourceType: 'script' }
For more information, please read the complete documentation.