Shulou(Shulou.com)06/02 Report--

This article mainly introduces how to use regular expressions to match [*] style strings, which has a certain reference value. Interested friends can refer to it. I hope you will learn a lot after reading this article. Let's take a look at it.

The source code is as follows

-(NSUInteger) analyseRX: (NSString *) string withPatternString: (NSString *) patternString

{

/ /\ [[^\]] to match the number of [*] that appear in the string

/ /] + > is used to match the number of occurrences in a string

If (string = = nil)

{

Return 0

}

/ / regular expression

NSRegularExpression * regex =\

[NSRegularExpression regularExpressionWithPattern:patternString

Options:NSRegularExpressionCaseInsensitive

Error:nil]

/ / perform relevant matching operations

NSRange range = NSMakeRange (0, [string length])

NSUInteger numberOfMatches = [regex numberOfMatchesInString:string

Options:0

Range:range]

/ / return the number of matches

Return numberOfMatches

}

For example, if you want to query for several strings with [*] structure in the string, such as the following string:

Thank you for reading this article carefully. I hope the article "how to use regular expressions to match [*] style strings" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.