using strrep multiple times

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James Knight
James Knight on 18 Oct 2019
Edited: Guillaume on 18 Oct 2019
Hi
I want to use strrep multiple times but , whats the correct way of doing this without retyping sstrep
Thanks in advance
choices= strrep(strrep(strrep(usertext, 'left', 'right'), 'up', 'down'), 'black' , 'white');

Answers (2)

Guillaume
Guillaume on 18 Oct 2019
Use replace instead:
>> usertext = 'left black left right up down upside white upleft';
>> replace(usertext, {'left', 'up', 'black'}, {'right', 'down', 'white'})
ans =
'right white right right down down downside white downright'

Adam Danz
Adam Danz on 18 Oct 2019
This demo is dedicated to Kazuhisa Hashimoto.
usertext = 'up, up, down, down, left, right, left, right, b, a, start.';
s = regexprep(usertext,{'left','up','b'},{'right','down','a'})
  1 Comment
Guillaume
Guillaume on 18 Oct 2019
Edited: Guillaume on 18 Oct 2019
Should have thought of that usertext for my answer ;)
+1 just for that.
However, be careful that some characters in the regexprep need to be escaped. e.g.
regexprep(usertext, {'.', '+'}, {',', '-'})
will lead to unexpected results. For that reason replace is safer.

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