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 };
};