How can I extract capital words from a string

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Hello all My string is "a_PSTC_SSSA_MNG_epwcrrauut_A" I want to extract "a_PSTC_SSSA_MNG" Thanks in advance
  1 Comment
Rik
Rik on 5 Dec 2022
Edited: Rik on 5 Dec 2022
Why is the initial a_ included? And why isn't the final _A included? What is the rule here?

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Answers (2)

Mathieu NOE
Mathieu NOE on 5 Dec 2022
Edited: Mathieu NOE on 5 Dec 2022
hello
this is one solution (for strings) . For char array it's almost the same (you don't even need to convert back from char to string as I did in the last line here)
str = "a_PSTC_SSSA_MNG_epwcrrauut_A" % input string
str = "a_PSTC_SSSA_MNG_epwcrrauut_A"
ind = strfind(str,'_');
str = char(str);
str_out = string(str(1:ind(end-1)-1)) % output string
str_out = "a_PSTC_SSSA_MNG"

Image Analyst
Image Analyst on 5 Dec 2022
Try this:
s = "a_PSTC_SSSA_MNG_epwcrrauut_A_Extrastuff"
s = "a_PSTC_SSSA_MNG_epwcrrauut_A_Extrastuff"
words = strsplit(s, '_')
words = 1×7 string array
"a" "PSTC" "SSSA" "MNG" "epwcrrauut" "A" "Extrastuff"
for k = 1 : numel(words)
thisWord = words{k};
capWord = upper(thisWord);
if strcmp(thisWord, capWord)
fprintf('The word %s is all capitals.\n', thisWord);
elseif strcmp(thisWord(1), capWord(1))
fprintf('The word %s has the first letter capitalized.\n', thisWord);
else
fprintf('The word %s is something else.\n', thisWord);
end
end
The word a is something else.
The word PSTC is all capitals. The word SSSA is all capitals. The word MNG is all capitals.
The word epwcrrauut is something else.
The word A is all capitals.
The word Extrastuff has the first letter capitalized.

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