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Regular expression
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Description
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.
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Any character (including newline)
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[abcn-z]
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Any of the characters a, b, c, n, o, p ... z
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[^abcn-z]
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Any characters except a, b, c, n, o, p ..., z
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\w
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Any alphanumeric character (including accents) or underscore (_)
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\l
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Any lower-case character (including accents)
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\u
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Any upper-case character (including accents)
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\d
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Any numeric character
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\s
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A whitespace character
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^xxx
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xxx at the beginning of a line
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xxx\r$
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xxx at the end of a line.
In UNICOM Intelligence Professional, you must use \r$ to find text at the end of a line instead of the more typical $.
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xxx|yyy
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Either xxx or yyy
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(xxx)
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Grouping (subexpression)
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x*
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Zero or more occurrences of x
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x+
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One or more occurrences of x
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x?
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Zero or one occurrences of x
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(xxx){ m }
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Exactly m occurrences of xxx
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(xxx){ m , n }
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At least m and at most n occurrences of xxx
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\
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The escape character that you use to match characters that have a special meaning in regular expressions, such as the following characters , . ? { } [ ] ( ) $ ^ *. For example, to match the { character, you would specify \{.
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Expression
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Matches
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|---|---|
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abcd
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The character sequence abcd anywhere in a line
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^abcd
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The character sequence abcd at the beginning of a line
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^\s*abcd
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The character sequence abcd at the beginning of a line after zero or more spaces
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abcd\r$
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The character sequence abcd at the end of a line
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\.txt\r$
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The character sequence .txt at the end of a line
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[^A-Z]+
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Any character that is not an uppercase English letter
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[0-9]+\r$
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Any digits in the range 0-9 that appear at the end of a line
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^\$
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A dollar sign at the beginning of a line
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\[\]
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The [ character and the ] character
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