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matching and excluding specific characters

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Lines changed: 22 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -13,4 +13,25 @@ var g=0`
`13`	`13`	```
`14`	`14`
`15`	`15`	`### wildcards`
`16`		`-As Joke in a deck of cards can represent any card, dot(.) can be used to match any character, be it alphanumeric, symbol or whitespace. This metacharacter ovverrides period. To match a period, it needs to be escaped using a slash \\.`
	`16`	`+As Joker in a deck of cards can represent any card, dot(.) can be used to match any character, be it alphanumeric, symbol or whitespace. This metacharacter ovverrides period. To match a period, it needs to be escaped using a slash \\.`
	`17`	`+`
	`18`	`+### matching specific characters`
	`19`	`+Specific character can be matched by defining them inside square brackets[]. E.g. [abc]. This will match only a, b or c and nothing else.`
	`20`	+```text
	`21`	`+match can`
	`22`	`+match man`
	`23`	`+match fan`
	`24`	`+skip dan`
	`25`	`+skip ran`
	`26`	`+skip pan`
	`27`	`+Corresponding regex: [cmf]a`
	`28`	+```
	`29`	`+`
	`30`	`+### excluding specific characters`
	`31`	`+Specific characters can be excluded using square brackets and hat(^). E.g. [^abc] will match any character except letters a,b, or c.`
	`32`	+```text
	`33`	`+match hog`
	`34`	`+match dog`
	`35`	`+skip bog`
	`36`	`+Corresponding regex: [^b]o`
	`37`	+```

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