1 function parsed = parseLog(filename) 2 % 3 % parsed = parseLog(filename) 4 % Parses a DataLog text file, with the filename specified in the string 5 % filename, into a struct with each column name as a field, and with the 6 % column data stored as a vector in that field. 7 % 8 % Arguments 9 % 10 % filename: A string with the name of the file to parse. 11 % 12 % Return value 13 % 14 % parsed: A struct containing each column parsed from the input file 15 % as a field and with the column data stored as a vector in that 16 % field. 17 % 18 19 % Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 20 % 21 % Use of this source code is governed by a BSD-style license 22 % that can be found in the LICENSE file in the root of the source 23 % tree. An additional intellectual property rights grant can be found 24 % in the file PATENTS. All contributing project authors may 25 % be found in the AUTHORS file in the root of the source tree. 26 27 table = importdata(filename, ',', 1); 28 if ~isstruct(table) 29 error('Malformed file, possibly empty or lacking data entries') 30 end 31 32 colheaders = table.textdata; 33 if length(colheaders) == 1 34 colheaders = regexp(table.textdata{1}, ',', 'split'); 35 end 36 37 parsed = struct; 38 i = 1; 39 while i <= length(colheaders) 40 % Checking for a multi-value column. 41 m = regexp(colheaders{i}, '([\w\t]+)\[(\d+)\]', 'tokens'); 42 if ~isempty(m) 43 % Parse a multi-value column 44 n = str2double(m{1}{2}) - 1; 45 parsed.(strrep(m{1}{1}, ' ', '_')) = table.data(:, i:i+n); 46 i = i + n + 1; 47 elseif ~isempty(colheaders{i}) 48 % Parse a single-value column 49 parsed.(strrep(colheaders{i}, ' ', '_')) = table.data(:, i); 50 i = i + 1; 51 else 52 error('Empty column'); 53 end 54 end 55
