Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site. have the special meaning inside the regex character class - but only if it's not the first or the last one there (it's used to specify a range of characters).I want to write a simple regular expression to check if in given string exist any special character.Could you suggest how to do that specifying the allowed ones: a-z / A-Z / 0-9 ~ @ # $ ^ & * ( ) - _ = [ ] | \ , . Hyphens in character classes denote a range unless they are escaped or at the start or end of the character class.Regular Expression Examples is a list, roughly sorted by complexity, of regular expression examples.
dot (.) Comma(,) hypen (-) and slash (/) I appreciate your help.The correct way is: You have to be careful, though.Don't do this for large texts or texts with many nested xml-tags because the regular-expression-machine is not the the right tool to parse large,nested files efficiently. If you are really dealing with XML, it is better to use a proper tool like Tcl DOM or t DOM.followed by a replace string "r" has the result "rrrrrrrrrrrrr".Here the search string is one character class and all the meta characters are interpreted as ordinary characters without the need to escape them.
I'm finding a regular expression which adheres below rules.