Regular Expressions (open-source framework)

1. Open source implementations of regular expressions: Regexkitlite (non-ARC) Use this class and need to import a dependent library: Libicucore.dylib
2. NSString *text = @ "Zhang San: 010-88669900, li 4,232 phone 010-55443322 send 0731-8373834 garbage fee";
3. 1. Defining Regular Expressions
4. NSString *regex = @ "\\d{3,4}-\\d{7,8}";
5. 2. Create a regular Expression implementation object
6. Nsregularexpression *expression = [[Nsregularexpression alloc] Initwithpattern:regex options: Nsregularexpressioncaseinsensitive Error:nil];
7. 3. Expression finds a string that conforms to a regular expression
8. Nsarray *items = [Expression matchesinstring:self options:nsmatchingreportprogress range:nsmakerange (0, Self.length)] ;
9. Nsmutablearray *itemarray = [Nsmutablearray array];

10.//4. Looping through the found results

1. For (Nstextcheckingresult *result in items) {
3. The range of strings that conform to the expression
4. Nsrange range = [Result range];
6. NSString *matchstring = [self substringwithrange:range];
7. [ItemArray addobject:matchstring];
8. }
9. Nsrange RG = [text Rangeofregex:regex];
11. NSString *substring = [text Substringwithrange:rg];

Recommended Learning site: http://www.jb51.net/tools/zhengze.html

Regular Expressions (open-source framework)