If you want a single regex that matches either M123.5554 or 1234.435M, you need to use the OR form (a|b):
([ML]\d+\.\d+|\d+\.\d+[ML]) where: [ML] matches M or L \d+ matches 1 or more digits \. matches a . -Fred -- Science answers questions; philosophy questions answers. On Jul 30, 2010, at 4:02 PM, Base wrote: > Hi All - > > I am sure that this is an easy one, but I am stuck. > > I have a document that should have triplets of a letter (M or L) > flllowed by 2 numbers. But the file has a ton of errors and often I > find a number that would be > > M123.5554 > or 1234.435M > > i.e. - the letter gets appended to the end of the number. > > This seems like a great place to use regex....how would one craft a > pattern for this? > > Thanks > > Base > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en