freifunk-app/node_modules/diff/lib/patch/parse.js

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

exports.__esModule = true;
exports. /*istanbul ignore end*/parsePatch = parsePatch;
function parsePatch(uniDiff) {
  /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
      delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
      list = [],
      i = 0;

  function parseIndex() {
    var index = {};
    list.push(index);

    // Parse diff metadata
    while (i < diffstr.length) {
      var line = diffstr[i];

      // File header found, end parsing diff metadata
      if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
        break;
      }

      // Diff index
      var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
      if (header) {
        index.index = header[1];
      }

      i++;
    }

    // Parse file headers if they are defined. Unified diff requires them, but
    // there's no technical issues to have an isolated hunk without file header
    parseFileHeader(index);
    parseFileHeader(index);

    // Parse hunks
    index.hunks = [];

    while (i < diffstr.length) {
      var _line = diffstr[i];

      if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
        break;
      } else if (/^@@/.test(_line)) {
        index.hunks.push(parseHunk());
      } else if (_line && options.strict) {
        // Ignore unexpected content unless in strict mode
        throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
      } else {
        i++;
      }
    }
  }

  // Parses the --- and +++ headers, if none are found, no lines
  // are consumed.
  function parseFileHeader(index) {
    var fileHeader = /^(---|\+\+\+)\s+(.*)$/.exec(diffstr[i]);
    if (fileHeader) {
      var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
      var data = fileHeader[2].split('\t', 2);
      var fileName = data[0].replace(/\\\\/g, '\\');
      if (/^".*"$/.test(fileName)) {
        fileName = fileName.substr(1, fileName.length - 2);
      }
      index[keyPrefix + 'FileName'] = fileName;
      index[keyPrefix + 'Header'] = (data[1] || '').trim();

      i++;
    }
  }

  // Parses a hunk
  // This assumes that we are at the start of a hunk.
  function parseHunk() {
    var chunkHeaderIndex = i,
        chunkHeaderLine = diffstr[i++],
        chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);

    var hunk = {
      oldStart: +chunkHeader[1],
      oldLines: +chunkHeader[2] || 1,
      newStart: +chunkHeader[3],
      newLines: +chunkHeader[4] || 1,
      lines: [],
      linedelimiters: []
    };

    var addCount = 0,
        removeCount = 0;
    for (; i < diffstr.length; i++) {
      // Lines starting with '---' could be mistaken for the "remove line" operation
      // But they could be the header for the next file. Therefore prune such cases out.
      if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
        break;
      }
      var operation = diffstr[i].length == 0 && i != diffstr.length - 1 ? ' ' : diffstr[i][0];

      if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
        hunk.lines.push(diffstr[i]);
        hunk.linedelimiters.push(delimiters[i] || '\n');

        if (operation === '+') {
          addCount++;
        } else if (operation === '-') {
          removeCount++;
        } else if (operation === ' ') {
          addCount++;
          removeCount++;
        }
      } else {
        break;
      }
    }

    // Handle the empty block count case
    if (!addCount && hunk.newLines === 1) {
      hunk.newLines = 0;
    }
    if (!removeCount && hunk.oldLines === 1) {
      hunk.oldLines = 0;
    }

    // Perform optional sanity checking
    if (options.strict) {
      if (addCount !== hunk.newLines) {
        throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
      }
      if (removeCount !== hunk.oldLines) {
        throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
      }
    }

    return hunk;
  }

  while (i < diffstr.length) {
    parseIndex();
  }

  return list;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIi4uLy4uL3NyYy9wYXRjaC9wYXJzZS5qcyJdLCJuYW1lcyI6WyJwYXJzZVBhdGNoIiwidW5pRGlmZiIsIm9wdGlvbnMiLCJkaWZmc3RyIiwic3BsaXQiLCJkZWxpbWl0ZXJzIiwibWF0Y2giLCJsaXN0IiwiaSIsInBhcnNlSW5kZXgiLCJpbmRleCIsInB1c2giLCJsZW5ndGgiLCJsaW5lIiwidGVzdCIsImhlYWRlciIsImV4ZWMiLCJwYXJzZUZpbGVIZWFkZXIiLCJodW5rcyIsInBhcnNlSHVuayIsInN0cmljdCIsIkVycm9yIiwiSlNPTiIsInN0cmluZ2lmeSIsImZpbGVIZWFkZXIiLCJrZXlQcmVmaXgiLCJkYXRhIiwiZmlsZU5hbWUiLCJyZXBsYWNlIiwic3Vic3RyIiwidHJpbSIsImNodW5rSGVhZGVySW5kZXgiLCJjaHVua0hlYWRlckxpbmUiLCJjaHVua0hlYWRlciIsImh1bmsiLCJvbGRTdGFydCIsIm9sZExpbmVzIiwibmV3U3RhcnQiLCJuZXdMaW5lcyIsImxpbmVzIiwibGluZWRlbGltaXRlcnMiLCJhZGRDb3VudCIsInJlbW92ZUNvdW50IiwiaW5kZXhPZiIsIm9wZXJhdGlvbiJdLCJtYXBwaW5ncyI6Ijs7O2dDQUFnQkEsVSxHQUFBQSxVO0FBQVQsU0FBU0EsVUFBVCxDQUFvQkMsT0FBcEIsRUFBMkM7QUFBQSxzREFBZEMsT0FBYyx1RUFBSixFQUFJOztBQUNoRCxNQUFJQyxVQUFVRixRQUFRRyxLQUFSLENBQWMscUJBQWQsQ0FBZDtBQUFBLE1BQ0lDLGFBQWFKLFFBQVFLLEtBQVIsQ0FBYyxzQkFBZCxLQUF5QyxFQUQxRDtBQUFBLE1BRUlDLE9BQU8sRUFGWDtBQUFBLE1BR0lDLElBQUksQ0FIUjs7QUFLQSxXQUFTQyxVQUFULEdBQXNCO0FBQ3BCLFFBQUlDLFFBQVEsRUFBWjtBQUNBSCxTQUFLSSxJQUFMLENBQVVELEtBQVY7O0FBRUE7QUFDQSxXQUFPRixJQUFJTCxRQUFRUyxNQUFuQixFQUEyQjtBQUN6QixVQUFJQyxPQUFPVixRQUFRSyxDQUFSLENBQVg7O0FBRUE7QUFDQSxVQUFJLHdCQUF3Qk0sSUFBeEIsQ0FBNkJELElBQTdCLENBQUosRUFBd0M7QUFDdEM7QUFDRDs7QUFFRDtBQUNBLFVBQUlFLFNBQVUsMENBQUQsQ0FBNkNDLElBQTdDLENBQWtESCxJQUFsRCxDQUFiO0FBQ0EsVUFBSUUsTUFBSixFQUFZO0FBQ1ZMLGNBQU1BLEtBQU4sR0FBY0ssT0FBTyxDQUFQLENBQWQ7QUFDRDs7QUFFRFA7QUFDRDs7QUFFRDtBQUNBO0FBQ0FTLG9CQUFnQlAsS0FBaEI7QUFDQU8sb0JBQWdCUCxLQUFoQjs7QUFFQTtBQUNBQSxVQUFNUSxLQUFOLEdBQWMsRUFBZDs7QUFFQSxXQUFPVixJQUFJTCxRQUFRUyxNQUFuQixFQUEyQjtBQUN6QixVQUFJQyxRQUFPVixRQUFRSyxDQUFSLENBQVg7O0FBRUEsVUFBSSxpQ0FBaUNNLElBQWpDLENBQXNDRCxLQUF0QyxDQUFKLEVBQWlEO0FBQy9DO0FBQ0QsT0FGRCxNQUVPLElBQUksTUFBTUMsSUFBTixDQUFXRCxLQUFYLENBQUosRUFBc0I7QUFDM0JILGNBQU1RLEtBQU4sQ0FBWVAsSUFBWixDQUFpQlEsV0FBakI7QUFDRCxPQUZNLE1BRUEsSUFBSU4sU0FBUVgsUUFBUWtCLE1BQXBCLEVBQTRCO0FBQ2pDO0FBQ0EsY0FBTSxJQUFJQyxLQUFKLENBQVUsbUJBQW1CYixJQUFJLENBQXZCLElBQTRCLEdBQTVCLEdBQWtDYyxLQUFLQyxTQUFMLENBQWVWLEtBQWYsQ0FBNUMsQ0FBTjtBQUNELE9BSE0sTUFHQTtBQUNMTDtBQUNEO0FBQ0Y7QUFDRjs7QUFFRDtBQUNBO0FBQ0EsV0FBU1MsZUFBVCxDQUF5QlAsS0FBekIsRUFBZ0M7QUFDOUIsUUFBTWMsYUFBYyx1QkFBRCxDQUEwQlIsSUFBMUIsQ0FBK0JiLFFBQVFLLENBQVIsQ0FBL0IsQ0FBbkI7QUFDQSxRQUFJZ0IsVUFBSixFQUFnQjtBQUNkLFVBQUlDLFlBQVlELFdBQVcsQ0FBWCxNQUFrQixLQUFsQixHQUEwQixLQUExQixHQUFrQyxLQUFsRDtBQUNBLFVBQU1FLE9BQU9GLFdBQVcsQ0FBWCxFQUFjcEIsS0FBZCxDQUFvQixJQUFwQixFQUEwQixDQUExQixDQUFiO0FBQ0EsVUFBSXVCLFdBQVdELEtBQUssQ0FBTCxFQUFRRSxPQUFSLENBQWdCLE9BQWhCLEVBQXlCLElBQXpCLENBQWY7QUFDQSxVQUFJLFNBQVNkLElBQVQsQ0FBY2EsUUFBZCxDQUFKLEVBQTZCO0FBQzNCQSxtQkFBV0EsU0FBU0UsTUFBVCxDQUFnQixDQUFoQixFQUFtQkYsU0FBU2YsTUFBVCxHQUFrQixDQUFyQyxDQUFYO0FBQ0Q7QUFDREYsWUFBTWUsWUFBWSxVQUFsQixJQUFnQ0UsUUFBaEM7QUFDQWpCLFlBQU1lLFlBQVksUUFBbEIsSUFBOEIsQ0FBQ0MsS0FBSyxDQUFMLEtBQVcsRUFBWixFQUFnQkksSUFBaEIsRUFBOUI7O0FBRUF0QjtBQUNEO0FBQ0Y7O0FBRUQ7QUFDQTtBQUNBLFdBQVNXLFNBQVQsR0FBcUI7QUFDbkIsUUFBSVksbUJBQW1CdkIsQ0FBdkI7QUFBQSxRQUNJd0Isa0JBQWtCN0IsUUFBUUssR0FBUixDQUR0QjtBQUFBLFFBRUl5QixjQUFjRCxnQkFBZ0I1QixLQUFoQixDQUFzQiw0Q0FBdEIsQ0FGbEI7O0FBSUEsUUFBSThCLE9BQU87QUFDVEMsZ0JBQVUsQ0FBQ0YsWUFBWSxDQUFaLENBREY7QUFFVEcsZ0JBQVUsQ0FBQ0gsWUFBWSxDQUFaLENBQUQsSUFBbUIsQ0FGcEI7QUFHVEksZ0JBQVUsQ0FBQ0osWUFBWSxDQUFaLENBSEY7QUFJVEssZ0JBQVUsQ0FBQ0wsWUFBWSxDQUFaLENBQUQsSUFBbUIsQ0FKcEI7QUFLVE0sYUFBTyxFQUxFO0FBTVRDLHNCQUFnQjtBQU5QLEtBQVg7O0FBU0EsUUFBSUMsV0FBVyxDQUFmO0FBQUEsUUFDSUMsY0FBYyxDQURsQjtBQUVBLFdBQU9sQyxJQUFJTCxRQUFRUyxNQUFuQixFQUEyQkosR0FBM0IsRUFBZ0M7QUFDOUI7QUFDQTtBQUNBLFVBQUlMLFFBQVFLLENBQVIsRUFBV21DLE9BQVgsQ0FBbUIsTUFBbkIsTUFBK0IsQ0FBL0IsSUFDTW5DLElBQUksQ0FBSixHQUFRTCxRQUFRUyxNQUR0QixJQUVLVCxRQUFRSyxJQUFJLENBQVosRUFBZW1DLE9BQWYsQ0FBdUIsTUFBdkIsTUFBbUMsQ0FGeEMsSUFHS3hDLFFBQVFLLElBQUksQ0FBWixFQUFlbUMsT0FBZixDQUF1QixJQUF2QixNQUFpQyxDQUgxQyxFQUc2QztBQUN6QztBQUNIO0FBQ0QsVUFBSUMsWUFBYXpDLFFBQVFLLENBQVIsRUFBV0ksTUFBWCxJQUFxQixDQUFyQixJQUEwQkosS0FBTUwsUUFBUVMsTUFBUixHQUFpQixDQUFsRCxHQUF3RCxHQUF4RCxHQUE4RFQsUUFBUUssQ0FBUixFQUFXLENBQVgsQ0FBOUU7O0FBRUEsVUFBSW9