Check file extension when identifying files in R to roxygenise

[mkoohafkan]

If a user does something silly like leave old documented code files in the R folder, but with the extension .oldR, otheR, etc. (such as I sometimes do when rewriting functions) Roxygen will still parse the Roxygen comments in those files, potentially leading to namespace weirdness. I'm guessing there's a regex call to blame that searches for "r$" rather than "\.r$"

[mkoohafkan]

I think it's a simple fix to change this line from

sort_c(dir(file.path(path, "R"), "[.Rr]$", full.names = TRUE))

to

sort_c(dir(file.path(path, "R"), "\\.[Rr]$", full.names = TRUE))

I'll test it and submit a pull request later.

[hadley]

Were you still interested in doing the PR?

[mkoohafkan]

Sorry, completely forgot---yes, but I won't be able to do it until September (away from computer)

[hadley]

Ok, in that case I'll just do myself since it's so small :)