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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:43:05 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 22:18:30 +0800 |
| commit | 89e95b3f143682ed9a006991bacf45c9dcba4818 (patch) | |
| tree | 4f44cf41b828577d583890bdd5a1c31e8491a6ba /node_modules/spdx-expression-parse/scan.js | |
| parent | aa7f0199255277949790b41c56e8ec97dd4f0da4 (diff) | |
| download | xmake-docs-vuepress.tar.gz xmake-docs-vuepress.zip | |
remove node_modulesvuepress
Diffstat (limited to 'node_modules/spdx-expression-parse/scan.js')
| -rw-r--r-- | node_modules/spdx-expression-parse/scan.js | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/node_modules/spdx-expression-parse/scan.js b/node_modules/spdx-expression-parse/scan.js deleted file mode 100644 index d0567f49..00000000 --- a/node_modules/spdx-expression-parse/scan.js +++ /dev/null @@ -1,131 +0,0 @@ -'use strict' - -var licenses = [] - .concat(require('spdx-license-ids')) - .concat(require('spdx-license-ids/deprecated')) -var exceptions = require('spdx-exceptions') - -module.exports = function (source) { - var index = 0 - - function hasMore () { - return index < source.length - } - - // `value` can be a regexp or a string. - // If it is recognized, the matching source string is returned and - // the index is incremented. Otherwise `undefined` is returned. - function read (value) { - if (value instanceof RegExp) { - var chars = source.slice(index) - var match = chars.match(value) - if (match) { - index += match[0].length - return match[0] - } - } else { - if (source.indexOf(value, index) === index) { - index += value.length - return value - } - } - } - - function skipWhitespace () { - read(/[ ]*/) - } - - function operator () { - var string - var possibilities = ['WITH', 'AND', 'OR', '(', ')', ':', '+'] - for (var i = 0; i < possibilities.length; i++) { - string = read(possibilities[i]) - if (string) { - break - } - } - - if (string === '+' && index > 1 && source[index - 2] === ' ') { - throw new Error('Space before `+`') - } - - return string && { - type: 'OPERATOR', - string: string - } - } - - function idstring () { - return read(/[A-Za-z0-9-.]+/) - } - - function expectIdstring () { - var string = idstring() - if (!string) { - throw new Error('Expected idstring at offset ' + index) - } - return string - } - - function documentRef () { - if (read('DocumentRef-')) { - var string = expectIdstring() - return {type: 'DOCUMENTREF', string: string} - } - } - - function licenseRef () { - if (read('LicenseRef-')) { - var string = expectIdstring() - return {type: 'LICENSEREF', string: string} - } - } - - function identifier () { - var begin = index - var string = idstring() - - if (licenses.indexOf(string) !== -1) { - return { - type: 'LICENSE', - string: string - } - } else if (exceptions.indexOf(string) !== -1) { - return { - type: 'EXCEPTION', - string: string - } - } - - index = begin - } - - // Tries to read the next token. Returns `undefined` if no token is - // recognized. - function parseToken () { - // Ordering matters - return ( - operator() || - documentRef() || - licenseRef() || - identifier() - ) - } - - var tokens = [] - while (hasMore()) { - skipWhitespace() - if (!hasMore()) { - break - } - - var token = parseToken() - if (!token) { - throw new Error('Unexpected `' + source[index] + - '` at offset ' + index) - } - - tokens.push(token) - } - return tokens -} |
