![]() The regular expression matches "BIG", "BAG", "BIN", and "BAN". ![]() This regular expression matches "B", followed by an "I" or "A", followed by a "G" or "N". If you specified the regular expression as "B", the concatenation of character sets creates a regular expression that matches the corresponding concatenation of characters in the search string. The regular expression " BG " matches the strings "BIG", "BAG", and "BUG", but does not match the string "BOG". For example matches any single character that is not a capital letter. In a character set a ^ character negates the following characters. ![]() In the character set, a hyphen indicates a range of characters, for example will match any one capital letter. For example, the regular expression " " specifies to match any single uppercase or lowercase letter. The pattern within the brackets of a regular expression defines a character set that is used to match a single character.
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