From 2a64b060ea33b3b872e4fbcdf9bba0e18e948c0d Mon Sep 17 00:00:00 2001
From: Thomas Lambert <t.lambert@uliege.be>
Date: Mon, 23 Jan 2023 18:50:49 +0100
Subject: [PATCH] fix(loader): automate header lines counting
---
utils/loadid.m | 35 +++++++++++++++++++++++++++++++----
1 file changed, 31 insertions(+), 4 deletions(-)
diff --git a/utils/loadid.m b/utils/loadid.m
index 80513c5..9a24932 100644
--- a/utils/loadid.m
+++ b/utils/loadid.m
@@ -34,15 +34,42 @@ function idTable = loadid(idFile)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Defaults and constants
- COMMENT_LINES = 3; % Number of commented lines in the header
+ HEADER_STYLE = '#';
+
+ % Determine where the data starts
+ headerLines = calcheaderlines(idFile, HEADER_STYLE);
% Tweak options before import
opts = detectImportOptions(idFile);
- opts.VariableNamesLine = COMMENT_LINES + 1;
- opts.VariableUnitsLine = COMMENT_LINES + 2;
- opts.DataLines = [COMMENT_LINES + 3 Inf];
+ opts.VariableNamesLine = headerLines + 1;
+ opts.VariableUnitsLine = headerLines + 2;
+ opts.DataLines = [headerLines + 3 Inf];
% Import
idTable = readtable(idFile, opts);
end
+
+function headerLines = calcheaderlines(file, headerStyle)
+ % CALCHEADERLINES Calculate number of header lines in a file
+
+ fileID = fopen(file);
+
+ headerLines = 0;
+ inHeader = true;
+
+ while inHeader
+ line = textscan(fileID, '%s', 1, 'Delimiter', {'\n', '\r'});
+ line = char(line{:});
+
+ % The '' in the regex is not an empty space, it is the byte order mark that Matlab puts
+ % at the beginning of the stream...
+ if regexp(line, ['^\*\s*', headerStyle])
+ headerLines = headerLines + 1;
+ else
+ inHeader = false;
+ end
+
+ end
+
+end
--
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