Note: the meaning of ^ depends on whether the RegexOptions are set for Singleline or Multiline matches the line Thanks for the coffee! (as long as Thanks is at the beginning of a line) ^T.+ matches all lines in the searchable string beginning with the letter T. Matches a character at the beginning of the line Used to apply regular expression operations to more than one consecutive character in an expression \- dash must also be escaped, since otherwise it mean range of charactersĬt matches only ct, cat, caat, caaat. period, must be escaped, since otherwise it would mean wildcard character used for special characters and for overriding regular expressions so they are recognized as literals (note that for a set of one character, you could have also expressed c?t as ca?t)Įscape character. Matches zero or one time in a set of characters,Ĭ?t matches ct, cat, cut, cot, crt, etc. (note that for a set of one character, you could have also expressed c*t as ca*t) Matches zero or more characters in a set of charactersĬ*t matches ct, cat and caat and caaat, etc.Ĭ*t matches ct, cat, cut, clout, creawtt (note that for a set of one character, you could have also expressed c+t as ca+t) Matches one or more characters in a set of charactersĬ+t matches cat, cut, clout, cakajhknmht Matches a single character of a set of characters
Match any single character except new line character (wildcard)Ĭ.t matches cat and cut, cit, cpt, c&t, etc. In my fervent quest to improve upon notepad with , I've added a feature to the tool to allow you to search using regular expression searches. Regular expressions are very useful for matching patterns in your text that span more than just matching exact letters. The example in figure 1 matches all words beginning with "acc". If you have never worked with regular expressions before, table 1 below shows you some of the regular expression symbols and their respective meaning.įigure 1 - Notepad.NET's FindDialog using Regular Expressions Expression
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