Mac use strsplit happen question（Matlab 2020b）

code：

if( ~isempty( regexp(tline,'Atom .*has atomic number .*and mass  ', 'once') ) )
    str = strsplit( strtrim(tline), ' ')
end

input：' Atom 1 has atomic number 6 and mass 12.00000'

output：

1×9 cell array

Columns 1 through 5

{'Atom'} {'1tom'} {'hasm'} {'atomic'} {'number'}

Columns 6 through 9

{'6umber'} {'andber'} {'masser'} {'12.00000'}

The output is wrong!

[Walter Roberson]

Which version are you using?

tline = ' Atom     1 has atomic number  6 and mass  12.00000';
if( ~isempty( regexp(tline,'Atom .*has atomic number .*and mass  ', 'once') ) )
    str = strsplit( strtrim(tline), ' ')
end

str = 1×9 cell array
    {'Atom'}    {'1'}    {'has'}    {'atomic'}    {'number'}    {'6'}    {'and'}    {'mass'}    {'12.00000'}

[Dyuman Joshi]

@Walter OP is using R2020b.

This is output when I ran the same code in my R2021a -

>> tline = ' Atom 1 has atomic number 6 and mass 12.00000';

if( ~isempty( regexp(tline,'Atom .*has atomic number .*and mass ', 'once') ) )

str = strsplit( strtrim(tline), ' ')

end

str =

1×9 cell array

{'Atom'} {'1'} {'has'} {'atomic'} {'number'} {'6'} {'and'} {'mass'} {'12.00000'}

[Walter Roberson]

I just installed R2020b and tested with the above code on an Intel Mac OS Sonoma. Output was as expected

str =

1×9 cell array

{'Atom'} {'1'} {'has'} {'atomic'} {'number'} {'6'} {'and'} {'mass'} {'12.00000'}

Answer 1

[树果]

Thank you all！I have script name ‘strsplit.m’ the same as the function 'strsplit'. I made a mistake!

[Dyuman Joshi]

Ah, that should be it.

Now, this should be a reminder to not name variables or scripts as the same as functions in MATLAB.