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regex search for one or more instances of a character set

When you add a plus sign '+' after characters identified within square brackets in a regular expression search, the search will find any instances where one or more of these characters appear. So this search:


. . . will find strings which begin with one or more instances of the uppercase letters between A to D, one or more digits between 1 and 5, and end with one or more of the lowercase letters between a and c.


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