![]() : who (who_arg), buf (), whitespace_table (), delim_table (),ĭelims (), comment_style (), comment_len (0), comment_char (-2),īuffer_size (0), date_locale (), inf_nan (init_inf_nan ()),Įmpty_value (numeric_limits::NaN ()), exp_chars ("edED"), Textscan::textscan (const std::string& who_arg) However, at the instantiation, the default white space includes the \t character: Textscan::scan_one (delimited_stream& is, const textscan_format_elt& fmt, It looks like the scanning routines all do skipping of white space in some form: Unlike the above, the patch I submitted is always removing the delimiters regardless of whether the format is %s or numeric.Īs an aside, it would be nice if built-in textscan() had tests just like scripts have tests so that one could tweak some code and immediately get feedback on what the ramifications are. White_spaces = setdiff (white_spaces, delimiter_str) # Remove any delimiter chars from white_spaces list If (isempty (regexp (format, '%\*?\d*s')))ĭelimiter_str = unique () # For numeric fields, whitespace is always a delimiter, but not for text ![]() Here's the white-space treatment from strread.m: %! = strread ("abcxyz51\nxyz83\n#xyz101", "%s xyz %d") Īnd I often use that capability so I'd like to keep strread.m somehow.Īs to tests, I'm sure there have been tests for binary textscan() but I didn't see them anymore in the fntests.logĬomment #3: OK, having read the textscan help, the takeaway is that textscan is a superset of strread() except for possibly different treatment of whitespace characters? Hence, it is difficult to make one or the other a main source routine and re-using it for the other routine? strread is a script, so is it slower in some significant way? It might be better if strread() utilized textscan() similar to what you described with "whitespace set to "\t\b"" (instead of going the other way with " \t\b". # Allow cuddling %sliteral but warn that it is ambiguous Note that current strread.m can do some things that Matlab's strread nor Octave&Matlab's textscan can do, i.e., processing cuddling literals see e.g., this strread.m test: In fact I started that soon after Lachlan's binary textscan was accepted into core Octave but I didn't pursue that due to lack of time, and didn't pick up again.Īt the time I tried to make strread.m as Matlab-compatible as I could I think unconditionally removing spaces isn't the right thing to do. The default is whitespace.Indeed the plan has always been to morph textscan() into a backend for strread. For backwards compatibility,īyte strings will be decoded as ‘latin1’. The character used to separate the values. ![]() The characters or list of characters used to indicate the start of aĬomment. comments str or sequence of str or None, optional In thisĬase, the number of columns used must match the number of fields in Structured data-type, the resulting array will be 1-dimensional, andĮach row will be interpreted as an element of the array. dtype data-type, optionalĭata-type of the resulting array default: float. In a list or produced by a generator are treated as lines. That generators must return bytes or strings. ![]() Parameters : fname file, str, pathlib.Path, list of str, generatorįile, filename, list, or generator to read. ![]() loadtxt ( fname, dtype=, comments='#', delimiter=None, converters=None, skiprows=0, usecols=None, unpack=False, ndmin=0, encoding='bytes', max_rows=None, *, quotechar=None, like=None ) # Mathematical functions with automatic domain ![]()
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