Add bits before last alphabet of every word
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How to add watermarks bit before the last alphabet of every word of a string.
6 个评论
采纳的回答
Image Analyst
2020-4-12
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 个评论
Image Analyst
2020-4-12
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.
更多回答(2 个)
Ameer Hamza
2020-4-12
编辑:Ameer Hamza
2020-4-12
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 个评论
Stephen23
2020-4-12
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 个评论
Image Analyst
2020-4-17
Is this your homework you're asking us to do? It sounds quirky enough, just like homework.
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