countof()

Counts occurrences of a substring in a string. Plain string matches may overlap; regex matches don't.

countof("The cat sat on the mat", "at") == 3
countof("The cat sat on the mat", @"\b.at\b", "regex") == 3

Syntax

countof(source, search [, kind])

Arguments

• source: A string.
• search: The plain string or regular expression to match inside source.
• kind: "normal"|"regex" Default normal.

Returns

The number of times that the search string can be matched in the container. Plain string matches may overlap; regex matches don't.

Examples

Function call	Result
countof("aaa", "a")	3
countof("aaaa", "aa")	3 (not 2!)
countof("ababa", "ab", "normal")	2
countof("ababa", "aba")	2
countof("ababa", "aba", "regex")	1
countof("abcabc", "a.c", "regex")	2