Predicate Format String Syntax

https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Predicates/Articles/pSyntax.html#//apple_ref/doc/uid/TP40001795-SW1



BEGINSWITH
The left-hand expression begins with the right-hand expression.

CONTAINS
The left-hand expression contains the right-hand expression.

ENDSWITH
The left-hand expression ends with the right-hand expression.

LIKE
The left hand expression equals the right-hand expression: ? and * are allowed as wildcard characters, where ? matches 1 character and * matches 0 or more characters.

MATCHES
The left hand expression equals the right hand expression using a regex-style comparison according to ICU v3 (for more details see the ICU User Guide for Regular Expressions).