first commit

build/node_modules/spdx-correct/index.js

@@ -0,0 +1,237 @@
+var licenseIDs = require('spdx-license-ids');
+
+function valid(string) {
+  return licenseIDs.indexOf(string) > -1;
+}
+
+// Common transpositions of license identifier acronyms
+var transpositions = [
+  ['APGL', 'AGPL'],
+  ['Gpl', 'GPL'],
+  ['GLP', 'GPL'],
+  ['APL', 'Apache'],
+  ['ISD', 'ISC'],
+  ['GLP', 'GPL'],
+  ['IST', 'ISC'],
+  ['Claude', 'Clause'],
+  [' or later', '+'],
+  [' International', ''],
+  ['GNU', 'GPL'],
+  ['GUN', 'GPL'],
+  ['+', ''],
+  ['GNU GPL', 'GPL'],
+  ['GNU/GPL', 'GPL'],
+  ['GNU GLP', 'GPL'],
+  ['GNU General Public License', 'GPL'],
+  ['Gnu public license', 'GPL'],
+  ['GNU Public License', 'GPL'],
+  ['GNU GENERAL PUBLIC LICENSE', 'GPL'],
+  ['MTI', 'MIT'],
+  ['Mozilla Public License', 'MPL'],
+  ['WTH', 'WTF'],
+  ['-License', '']
+];
+
+var TRANSPOSED = 0;
+var CORRECT = 1;
+
+// Simple corrections to nearly valid identifiers.
+var transforms = [
+  // e.g. 'mit'
+  function(argument) {
+    return argument.toUpperCase();
+  },
+  // e.g. 'MIT '
+  function(argument) {
+    return argument.trim();
+  },
+  // e.g. 'M.I.T.'
+  function(argument) {
+    return argument.replace(/\./g, '');
+  },
+  // e.g. 'Apache- 2.0'
+  function(argument) {
+    return argument.replace(/\s+/g, '');
+  },
+  // e.g. 'CC BY 4.0''
+  function(argument) {
+    return argument.replace(/\s+/g, '-');
+  },
+  // e.g. 'LGPLv2.1'
+  function(argument) {
+    return argument.replace('v', '-');
+  },
+  // e.g. 'Apache 2.0'
+  function(argument) {
+    return argument.replace(/,?\s*(\d)/, '-$1');
+  },
+  // e.g. 'GPL 2'
+  function(argument) {
+    return argument.replace(/,?\s*(\d)/, '-$1.0');
+  },
+  // e.g. 'Apache Version 2.0'
+  function(argument) {
+    return argument.replace(/,?\s*(V\.|v\.|V|v|Version|version)\s*(\d)/, '-$2');
+  },
+  // e.g. 'Apache Version 2'
+  function(argument) {
+    return argument.replace(/,?\s*(V\.|v\.|V|v|Version|version)\s*(\d)/, '-$2.0');
+  },
+  // e.g. 'ZLIB'
+  function(argument) {
+    return argument[0].toUpperCase() + argument.slice(1);
+  },
+  // e.g. 'MPL/2.0'
+  function(argument) {
+    return argument.replace('/', '-');
+  },
+  // e.g. 'Apache 2'
+  function(argument) {
+    return argument
+      .replace(/\s*V\s*(\d)/, '-$1')
+      .replace(/(\d)$/, '$1.0');
+  },
+  // e.g. 'GPL-2.0-'
+  function(argument) {
+    return argument.slice(0, argument.length - 1);
+  },
+  // e.g. 'GPL2'
+  function(argument) {
+    return argument.replace(/(\d)$/, '-$1.0');
+  },
+  // e.g. 'BSD 3'
+  function(argument) {
+    return argument.replace(/(-| )?(\d)$/, '-$2-Clause');
+  },
+  // e.g. 'BSD clause 3'
+  function(argument) {
+    return argument.replace(/(-| )clause(-| )(\d)/, '-$3-Clause');
+  },
+  // e.g. 'BY-NC-4.0'
+  function(argument) {
+    return 'CC-' + argument;
+  },
+  // e.g. 'BY-NC'
+  function(argument) {
+    return 'CC-' + argument + '-4.0';
+  },
+  // e.g. 'Attribution-NonCommercial'
+  function(argument) {
+    return argument
+      .replace('Attribution', 'BY')
+      .replace('NonCommercial', 'NC')
+      .replace('NoDerivatives', 'ND')
+      .replace(/ (\d)/, '-$1')
+      .replace(/ ?International/, '');
+  },
+  // e.g. 'Attribution-NonCommercial'
+  function(argument) {
+    return 'CC-' +
+      argument
+      .replace('Attribution', 'BY')
+      .replace('NonCommercial', 'NC')
+      .replace('NoDerivatives', 'ND')
+      .replace(/ (\d)/, '-$1')
+      .replace(/ ?International/, '') +
+      '-4.0';
+  }
+];
+
+// If all else fails, guess that strings containing certain substrings
+// meant to identify certain licenses.
+var lastResorts = [
+  ['UNLI', 'Unlicense'],
+  ['WTF', 'WTFPL'],
+  ['2 CLAUSE', 'BSD-2-Clause'],
+  ['2-CLAUSE', 'BSD-2-Clause'],
+  ['3 CLAUSE', 'BSD-3-Clause'],
+  ['3-CLAUSE', 'BSD-3-Clause'],
+  ['AFFERO', 'AGPL-3.0'],
+  ['AGPL', 'AGPL-3.0'],
+  ['APACHE', 'Apache-2.0'],
+  ['ARTISTIC', 'Artistic-2.0'],
+  ['Affero', 'AGPL-3.0'],
+  ['BEER', 'Beerware'],
+  ['BOOST', 'BSL-1.0'],
+  ['BSD', 'BSD-2-Clause'],
+  ['ECLIPSE', 'EPL-1.0'],
+  ['FUCK', 'WTFPL'],
+  ['GNU', 'GPL-3.0'],
+  ['LGPL', 'LGPL-3.0'],
+  ['GPL', 'GPL-3.0'],
+  ['MIT', 'MIT'],
+  ['MPL', 'MPL-2.0'],
+  ['X11', 'X11'],
+  ['ZLIB', 'Zlib']
+];
+
+var SUBSTRING = 0;
+var IDENTIFIER = 1;
+
+var validTransformation = function(identifier) {
+  for (var i = 0; i < transforms.length; i++) {
+    var transformed = transforms[i](identifier);
+    if (transformed !== identifier && valid(transformed)) {
+      return transformed;
+    }
+  }
+  return null;
+};
+
+var validLastResort = function(identifier) {
+  var upperCased = identifier.toUpperCase();
+  for (var i = 0; i < lastResorts.length; i++) {
+    var lastResort = lastResorts[i];
+    if (upperCased.indexOf(lastResort[SUBSTRING]) > -1) {
+      return lastResort[IDENTIFIER];
+    }
+  }
+  return null;
+};
+
+var anyCorrection = function(identifier, check) {
+  for (var i = 0; i < transpositions.length; i++) {
+    var transposition = transpositions[i];
+    var transposed = transposition[TRANSPOSED];
+    if (identifier.indexOf(transposed) > -1) {
+      var corrected = identifier.replace(
+        transposed,
+        transposition[CORRECT]
+      );
+      var checked = check(corrected);
+      if (checked !== null) {
+        return checked;
+      }
+    }
+  }
+  return null;
+};
+
+module.exports = function(identifier) {
+  identifier = identifier.replace(/\+$/, '');
+  if (valid(identifier)) {
+    return identifier;
+  }
+  var transformed = validTransformation(identifier);
+  if (transformed !== null) {
+    return transformed;
+  }
+  transformed = anyCorrection(identifier, function(argument) {
+    if (valid(argument)) {
+      return argument;
+    }
+    return validTransformation(argument);
+  });
+  if (transformed !== null) {
+    return transformed;
+  }
+  transformed = validLastResort(identifier);
+  if (transformed !== null) {
+    return transformed;
+  }
+  transformed = anyCorrection(identifier, validLastResort);
+  if (transformed !== null) {
+    return transformed;
+  }
+  return null;
+};