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node_modules/ret/lib/sets.js 2.18 KB
aaac7fed   liuqimichale   add
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  var types = require('./types');
  
  var INTS = function() {
   return [{ type: types.RANGE , from: 48, to: 57 }];
  };
  
  var WORDS = function() {
   return [
      { type: types.CHAR, value: 95 },
      { type: types.RANGE, from: 97, to: 122 },
      { type: types.RANGE, from: 65, to: 90 }
    ].concat(INTS());
  };
  
  var WHITESPACE = function() {
   return [
      { type: types.CHAR, value: 9 },
      { type: types.CHAR, value: 10 },
      { type: types.CHAR, value: 11 },
      { type: types.CHAR, value: 12 },
      { type: types.CHAR, value: 13 },
      { type: types.CHAR, value: 32 },
      { type: types.CHAR, value: 160 },
      { type: types.CHAR, value: 5760 },
      { type: types.CHAR, value: 6158 },
      { type: types.CHAR, value: 8192 },
      { type: types.CHAR, value: 8193 },
      { type: types.CHAR, value: 8194 },
      { type: types.CHAR, value: 8195 },
      { type: types.CHAR, value: 8196 },
      { type: types.CHAR, value: 8197 },
      { type: types.CHAR, value: 8198 },
      { type: types.CHAR, value: 8199 },
      { type: types.CHAR, value: 8200 },
      { type: types.CHAR, value: 8201 },
      { type: types.CHAR, value: 8202 },
      { type: types.CHAR, value: 8232 },
      { type: types.CHAR, value: 8233 },
      { type: types.CHAR, value: 8239 },
      { type: types.CHAR, value: 8287 },
      { type: types.CHAR, value: 12288 },
      { type: types.CHAR, value: 65279 }
    ];
  };
  
  var NOTANYCHAR = function() {
    return [
      { type: types.CHAR, value: 10 },
      { type: types.CHAR, value: 13 },
      { type: types.CHAR, value: 8232 },
      { type: types.CHAR, value: 8233 },
    ];
  };
  
  // Predefined class objects.
  exports.words = function() {
    return { type: types.SET, set: WORDS(), not: false };
  };
  
  exports.notWords = function() {
    return { type: types.SET, set: WORDS(), not: true };
  };
  
  exports.ints = function() {
    return { type: types.SET, set: INTS(), not: false };
  };
  
  exports.notInts = function() {
    return { type: types.SET, set: INTS(), not: true };
  };
  
  exports.whitespace = function() {
    return { type: types.SET, set: WHITESPACE(), not: false };
  };
  
  exports.notWhitespace = function() {
    return { type: types.SET, set: WHITESPACE(), not: true };
  };
  
  exports.anyChar = function() {
    return { type: types.SET, set: NOTANYCHAR(), not: true };
  };