StringPrep

Class Overview

StringPrep API implements the StingPrep framework as described by RFC 3454. StringPrep prepares Unicode strings for use in network protocols. Profiles of StingPrep are set of rules and data according to which the Unicode Strings are prepared. Each profiles contains tables which describe how a code point should be treated. The tables are broadly classied into

• Unassigned Table: Contains code points that are unassigned in the Unicode Version supported by StringPrep. Currently RFC 3454 supports Unicode 3.2.
• Prohibited Table: Contains code points that are prohibted from the output of the StringPrep processing function.
• Mapping Table: Contains code ponts that are deleted from the output or case mapped.

1. Map: For each character in the input, check if it has a mapping and, if so, replace it with its mapping.
2. Normalize: Possibly normalize the result of step 1 using Unicode normalization.
3. Prohibit: Check for any characters that are not allowed in the output. If any are found, return an error.
4. Check bidi: Possibly check for right-to-left characters, and if any are found, make sure that the whole string satisfies the requirements for bidirectional strings. If the string does not satisfy the requirements for bidirectional strings, return an error.

Summary

[Expand] Inherited Methods

From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait() Causes the current thread to wait until another thread invokes the notify() method or the notifyAll() method for this object. final void wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the notify() method or the notifyAll() method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed. final void wait(long timeout) Causes the current thread to wait until either another thread invokes the notify() method or the notifyAll() method for this object, or a specified amount of time has elapsed.