R Programming regexpr error

Question

Here's my code:

> x <- c("ABCDE CDEFG FGHIJ")
> x
[1] "ABCDE CDEFG FGHIJ"
> regexpr("D", x)
[1] 4
attr(,"match.length")
[1] 1

The problem is regexpr only gives back the first occurrence of D, how do I get it to return all occurrences of D?

Answer 1

The below code will help:

gregexpr("D", x)
# [[1]]
# [1] 4 8
# attr(,"match.length")
# [1] 1 1
# attr(,"useBytes")
# [1] TRUE