Truncate strings to maximum length
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I have an array of strings (new strings, not old character arrays) of varying lengths, and I would like to truncate them to below some maximum length. I thought that extractBefore would be helpful, but it fails for strings shorter than the truncation length.
>> str = ["ab", "cdefg"];
>> extractBefore(str, 3) % this works fine
ans =
1×2 string array
"ab" "cd"
>> extractBefore(str, 4) % this fails
Error using extractBefore
Numeric value exceeds the number of characters in element 1.
This is my current solution:
>> arrayfun(@(s)extractBefore(s, min(4, s.strlength())+1), str)
ans =
1×2 string array
"ab" "cdef"
However, this is awkward and difficult to read.
Is there no ready-made functionality for doing this?
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Answers (2)
Stephen23
on 16 Feb 2023
str = ["ab", "cdefg"];
out = regexp(str,'^.{1,4}','match','once')
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