Rename tools-webrtc -> tools_webrtc

This aligns with established naming convention for all
other directories.

BUG=webrtc:7593
NOTRY=True
NOTREECHECKS=True
R=ehmaldonado@webrtc.org, mbonadei@webrtc.org
TBR=henrika@webrtc.org

Review-Url: https://codereview.webrtc.org/2864213004 .
Cr-Commit-Position: refs/heads/master@{#18059}

tools_webrtc/matlab/parseLog.m

@@ -0,0 +1,54 @@
+function parsed = parseLog(filename)
+%
+% parsed = parseLog(filename)
+% Parses a DataLog text file, with the filename specified in the string
+% filename, into a struct with each column name as a field, and with the
+% column data stored as a vector in that field.
+%
+% Arguments
+%
+% filename: A string with the name of the file to parse.
+%
+% Return value
+%
+% parsed: A struct containing each column parsed from the input file
+%         as a field and with the column data stored as a vector in that 
+%         field.
+%
+
+% Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+%
+% Use of this source code is governed by a BSD-style license
+% that can be found in the LICENSE file in the root of the source
+% tree. An additional intellectual property rights grant can be found
+% in the file PATENTS.  All contributing project authors may
+% be found in the AUTHORS file in the root of the source tree.
+
+table = importdata(filename, ',', 1);
+if ~isstruct(table)
+  error('Malformed file, possibly empty or lacking data entries')
+end
+
+colheaders = table.textdata;
+if length(colheaders) == 1
+  colheaders = regexp(table.textdata{1}, ',', 'split');
+end
+
+parsed = struct;
+i = 1;
+while i <= length(colheaders)
+  % Checking for a multi-value column.
+  m = regexp(colheaders{i}, '([\w\t]+)\[(\d+)\]', 'tokens');
+  if ~isempty(m)
+    % Parse a multi-value column
+    n = str2double(m{1}{2}) - 1;
+    parsed.(strrep(m{1}{1}, ' ', '_')) = table.data(:, i:i+n);
+    i = i + n + 1;
+  elseif ~isempty(colheaders{i})
+    % Parse a single-value column
+    parsed.(strrep(colheaders{i}, ' ', '_')) = table.data(:, i);
+    i = i + 1;
+  else
+    error('Empty column');
+  end
+end