Add bits before last alphabet of every word
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Balkar Singh
le 11 Avr 2020
Commenté : Balkar Singh
le 17 Avr 2020
How to add watermarks bit before the last alphabet of every word of a string.
6 commentaires
Réponse acceptée
Image Analyst
le 12 Avr 2020
Try this:
str = 'MATLAB is a super awesome program';
words = strsplit(str)
for k = 1 : length(words)
thisString = words{k};
if length(thisString) >= 2
words{k} = sprintf('%s%c%c', thisString(1:end-1), char(hex2dec('2020D')), thisString(end));
end
end
% Reconstruct into a single string
words
str2 = [];
for k = 1 : length(words)
thisString = words{k};
str2 = sprintf('%s %s', str2, thisString);
end
str2
You'll see in the command window:
words =
1×6 cell array
{'MATLAB'} {'is'} {'a'} {'super'} {'awesome'} {'program'}
words =
1×6 cell array
{'MATLAB'} {'is'} {'a'} {'super'} {'awesome'} {'program'}
str2 =
' MATLAB is a super awesome program'
except that the FFFF in the boxes don't show up in MATLAB - they're just little empty boxes.
2 commentaires
Image Analyst
le 12 Avr 2020
Sorry, the second words is not showing up in the web browser the same way it does in the MATLAB command window. In the MATLAB command window, you can see that there is a little box (representing the special non-printable character) just before the last letter of every word, and in the browse (before I submitted it) the little boxes has 4 F's in them.
Plus de réponses (2)
Ameer Hamza
le 12 Avr 2020
Modifié(e) : Ameer Hamza
le 12 Avr 2020
This example show how to add the Unicode U+202D before the last character of every word. It also ignores full stops (.) and comma (,) while making a replacement. Since this Unicode character is invisible and has no effect on visible effect on the left to right characters, you can see the replacement is being made by comparing the length of the strings.
str = 'A quick brown fox, jumps over the lazy dog.';
l1 = numel(str);
new_str = regexprep(str, '([A-Za-z][\s\.,])', [char(hex2dec('202D')) '$1']);
l2 = numel(new_str);
>> l1
l1 =
43
>> l2
l2 =
52
You can also see that the replacement are being made by adding a dummy character (say a) after U+202D.
str = 'A quick brown fox, jumps over the lazy dog.';
new_str = regexprep(str, '([A-Za-z][\s\.,])', [char(hex2dec('202D')) 'a$1']);
new_str =
'aA quicak browan foax, jumpas ovear thae lazay doag.'
3 commentaires
Stephen23
le 12 Avr 2020
Simpler:
>> str = 'A quick brown fox, jumps over the lazy dog';
>> out = regexprep(str,'(\w)\>','\x202D$1')
out =
A quick brown fox, jumps over the lazy dog
12 commentaires
Image Analyst
le 17 Avr 2020
Is this your homework you're asking us to do? It sounds quirky enough, just like homework.
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