Description |
Regular expression for US (ZIP and ZIP+4) and Canadian postal codes. It allows 5 digits for the first US postal code and requires that the +4, if it exists, is four digits long. Canadain postal codes can contain a space and take form of A1A 1A1. The letters can be upper or lower case, but the first letter must be one of the standard Canadian zones: A,B,C,E,G,H,J,K,L,M,N,P,R,S,T,V,X,Y.
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