[R] character occurence within a string

[Marc Mamin]

Hello,

I'm looking for a function that counts the occurences of a given character within a string.

f('|','ab|c|d') => 2


More precisely, I need to complete a vector of strings to ensure that all elements have the same count of a "separator":

	a|b|c
	a
	|a|b|c|d

	=>

	a|b|c||
	a||||
	|a|b|c|d

I guess that scan makes use of an internal function that would do the job...


Thanks,

Marc Mamin