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2008 Dec 02
1
Question to regular expressions
...not directly an R-help question but probably someone can give me a hint how to deal with the following problem. I have a vector with file/folder names and want to filter for all entries which have 6 numbers in a row and nothing else. folders <- c("folder1", "f2", "F234562", "12345678", "234567", "912345", "333") I'd like to get only "234567" and "912345". Can anybody help me creating a regex for this??? For example this regex: regexpr("[^:digit:$]{6}", folders) would match "F2345...