CODEWITHSUNDEEP
stringmatlabapostrophe
Jurgen Cuschieri
Jurgen Cuschieri

Reputation: 736

Doubling the number of apostrophes in a string Matlab

Say the automatic input from the program is:

str = 'John's dog is called Ace'

I want to automatically re-create the string to contain another apostrophe, whenever a single apostrophe is found (as a single apostrophe "breaks" the string):

newstr = 'John''s dog is called Ace'

Note that this has to be done automatically i.e. through some kind of function. I cant just insert a new character manually.

What is the best and most efficient way to do this in Matlab? I am asking question because I know matlab has many functions that ease these tasks and do not necessarily always need whole string traversals (especially useful in very long strings). any kind of help?

Upvotes: 0

Views: 60

Answers (2)

xenoclast
xenoclast

Reputation: 1635

One option would be to use strrep:

strrep('John''s dog''''s called Ace', '''', '''''')

ans =

John''s dog''''s called Ace

It looks odd in the example because of the escaping, so it may not be a good fit if you want it to be readable.

You could replace a ' with char(39), which might cause less problems with errors but more with readability.

I also added a pair of quotes to make sure that worked and, hilariously, this results in a command with 18 single quotes in it. That's a personal best for me anyway.

Upvotes: 3

matlabgui
matlabgui

Reputation: 5672

You could also use regexprep

newStr = regexprep ( str, '''', '''''' )

Upvotes: 3

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