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I have a string like fcsNotificationZK44_0376300009215000019_4158794.xml and a pattern (fcs.*)_ the target is to get fcsNotificationZK44 but standart C# Regex matched at fcsNotificationZK44_0376300009215000019 becouse it is greedy. In javascript I can use /U modifier to turn on ungreedy mode but how to solve it in C# Regex? Thanks.
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A regular expression is a sequence of characters used to match a pattern to a string. The expression can be used for searching text and validating input. Remember, a regular expression is not the property of a particular language. POSIX is a well-known library used for regular expressions in C.
Regex recognizes common escape sequences such as \n for newline, \t for tab, \r for carriage-return, \nnn for a up to 3-digit octal number, \xhh for a two-digit hex code, \uhhhh for a 4-digit Unicode, \uhhhhhhhh for a 8-digit Unicode.
\\. matches the literal character . . the first backslash is interpreted as an escape character by the Emacs string reader, which combined with the second backslash, inserts a literal backslash character into the string being read. the regular expression engine receives the string \. html?\ ' .
Greedy: As Many As Possible (longest match) By default, a quantifier tells the engine to match as many instances of its quantified token or subpattern as possible. This behavior is called greedy. For instance, take the + quantifier.
Use *? to make the * non-greedy.
Reference: http://www.regular-expressions.info/repeat.html
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