absolutepath.m
3aa2120ee410master

absolutepath.m
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			function abs_path = absolutepath( rel_path, act_path, throwErrorIfFileNotExist )
			%ABSOLUTEPATH returns the absolute path relative to a given startpath.
			%
			% Syntax:
			% abs_path = ABSOLUTEPATH( rel_path )
			%
			% Parameters:
			% rel_path - Relative path
			%
			%
			% See also: RELATIVEPATH PATH

			% Jochen Lenz

			% Jonathan karr 12/17/2010
			% - making compatible with linux
			% - commented out lower cases
			% - switching findstr to strfind
			% - fixing mlint warnings
			% Jonathan karr 1/11/2011
			% - Per Abel Brown's comments adding optional error checking for absolute path of directories that don't exist
			% Jonathan karr 1/12/2011
			% - fixing bugs and writing test

			% Simon Blanchoud 11/20/2014
			% - Modified to accept already absolute paths
			% - Allowed non-existing absolute paths

			% Simon Blanchoud 11/11/2020
			% - Switched to using Octave build-in functions

			%build absolute path
			if (is_absolute_filename(rel_path))
			abs_path = rel_path;
			else
			abs_path = make_absolute_filename(tilde_expand(rel_path));
			end