Iphone 匹配字符串格式_Iphone_Objective C_Ios

Iphone 匹配字符串格式

iphone objective-c ios

Iphone 匹配字符串格式,iphone,objective-c,ios,Iphone,Objective C,Ios,如何执行字符串匹配，就像regex 例如，我有一个字符串数组，我想匹配这些字符串的格式是否为“abc def xxx”，其中xxx是类似1，11，12，100，111，等等的数字如何实现这一点？有一个NSRegularExpression类，请看一看有一个NSRegularExpression类，请看一看阵列： NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @

如何执行字符串匹配，就像

regex

例如，我有一个字符串数组，我想匹配这些字符串的格式是否为

“abc def xxx”

，其中

xxx

是类似

，

，等等的数字

如何实现这一点？

有一个NSRegularExpression类，请看一看

阵列：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

正则表达式：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

检查数组中的所有字符串是否与正则表达式匹配：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

array1中的所有对象都与正则表达式匹配，但array2包含与正则表达式不匹配的字符串@“abc def 5367”

获取匹配字符串：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

获取不匹配的字符串：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

注意，这里谓词中的“description”是NSString的

-description

方法。

数组：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

正则表达式：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

检查数组中的所有字符串是否与正则表达式匹配：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

array1中的所有对象都与正则表达式匹配，但array2包含与正则表达式不匹配的字符串@“abc def 5367”

获取匹配字符串：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

获取不匹配的字符串：

NSArray *array1 = [NSArray arrayWithObjects:@"abc def 1", @"abc def 64", @"abc def 853", @"abc def 14", nil];
NSArray *array2 = [NSArray arrayWithObjects:@"abc def 3", @"abc def 856", @"abc def 36", @"abc def 5367", nil];

NSString *regex = @"abc def [0-9]{1,3}";

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ALL description MATCHES %@", regex];
BOOL allStringsMatch = [predicate evaluateWithObject:array1]; 
// OUTPUT: YES
allStringsMatch = [predicate evaluateWithObject:array2];
// OUTPUT: NO

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 3", @"abc def 856", @"abc def 36" }

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT description MATCHES %@", regex];
NSArray *unmatchedStrings = [array2 filteredArrayUsingPredicate:predicate];
// OUTPUT: { @"abc def 5367" }

注意这里谓词中的“description”是NSString的

-description

方法。

非常感谢！谢谢！：）非常感谢你！谢谢！：）