iOS string processing notes (regular expression, Nsscanner Scan, Coreparse parser)

Turn from:

Search searching for substrings in a string

The most flexible approach

1	-(Nsrange) rangeofstring: (NSString *) astring options: (nsstringcompareoptions) Mask range: (nsrange) searchrange locale :(Nslocale *) locale

format string

3 methods

1 2 3

-initwithformat:-initwithformat:arguments: +stringwithformat:

integers

Can work at the same time in 32-bit and 64-bit

1 2 3

uint64_t p = 2305843009213693951; nsstring *s = [nsstring stringwithformat:@ "The ninth mersenne prime is  %llu ",  (Unsigned long long)  p];   "the ninth mersenne prime is 2305843009213693951"

Modifier	D, I	o, u, x, x
hh	Signed Char	unsigned char
H	Short	unsigned short
(none)	Int	unsigned int
L (ELL)	Long	unsigned long
J	intmax_t	uintmax_t
T	ptrdiff_t
Z		size_t

Conversion rules