src/third_party/devtools/node_modules/mocha/node_modules/diff/lib/diff/word.js

/*istanbul ignore start*/'use strict';

exports.__esModule = true;
exports.wordDiff = undefined;
exports. /*istanbul ignore end*/diffWords = diffWords;
/*istanbul ignore start*/exports. /*istanbul ignore end*/diffWordsWithSpace = diffWordsWithSpace;

var /*istanbul ignore start*/_base = require('./base') /*istanbul ignore end*/;

/*istanbul ignore start*/var _base2 = _interopRequireDefault(_base);

/*istanbul ignore end*/var /*istanbul ignore start*/_params = require('../util/params') /*istanbul ignore end*/;

/*istanbul ignore start*/function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/*istanbul ignore end*/ // Based on https://en.wikipedia.org/wiki/Latin_script_in_Unicode
//
// Ranges and exceptions:
// Latin-1 Supplement, 0080–00FF
//  - U+00D7  × Multiplication sign
//  - U+00F7  ÷ Division sign
// Latin Extended-A, 0100–017F
// Latin Extended-B, 0180–024F
// IPA Extensions, 0250–02AF
// Spacing Modifier Letters, 02B0–02FF
//  - U+02C7  ˇ ˇ  Caron
//  - U+02D8  ˘ ˘  Breve
//  - U+02D9  ˙ ˙  Dot Above
//  - U+02DA  ˚ ˚  Ring Above
//  - U+02DB  ˛ ˛  Ogonek
//  - U+02DC  ˜ ˜  Small Tilde
//  - U+02DD  ˝ ˝  Double Acute Accent
// Latin Extended Additional, 1E00–1EFF
var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;

var reWhitespace = /\S/;

var wordDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/wordDiff = new /*istanbul ignore start*/_base2['default'] /*istanbul ignore end*/();
wordDiff.equals = function (left, right) {
  if (this.options.ignoreCase) {
    left = left.toLowerCase();
    right = right.toLowerCase();
  }
  return left === right || this.options.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
};
wordDiff.tokenize = function (value) {
  var tokens = value.split(/(\s+|\b)/);

  // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.
  for (var i = 0; i < tokens.length - 1; i++) {
    // If we have an empty string in the next field and we have only word chars before and after, merge
    if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
      tokens[i] += tokens[i + 2];
      tokens.splice(i + 1, 2);
      i--;
    }
  }

  return tokens;
};

function diffWords(oldStr, newStr, options) {
  options = /*istanbul ignore start*/(0, _params.generateOptions) /*istanbul ignore end*/(options, { ignoreWhitespace: true });
  return wordDiff.diff(oldStr, newStr, options);
}

function diffWordsWithSpace(oldStr, newStr, options) {
  return wordDiff.diff(oldStr, newStr, options);
}
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