using strrep multiple times

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');

[Walter Roberson]

Consider regexprep instead

[James Knight]

But does that not work only with one singular output?

Thanks

[James Knight]

https://uk.mathworks.com/help/matlab/ref/regexprep.html

Answer 1

[Guillaume]

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'

Answer 2

[Adam Danz]

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'})

[Guillaume]

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.