com.ibm.icu.text
Class CanonicalIterator
java.lang.Object
|
+--com.ibm.icu.text.CanonicalIterator
- public class CanonicalIterator
- extends java.lang.Object
This class allows one to iterate through all the strings that are canonically equivalent to a given
string. For example, here are some sample results:
Results for: {A WITH RING ABOVE}{d}{DOT ABOVE}{CEDILLA}
1: {A}{RING ABOVE}{d}{DOT ABOVE}{CEDILLA}
2: {A}{RING ABOVE}{d}{CEDILLA}{DOT ABOVE}
3: {A}{RING ABOVE}{d WITH DOT ABOVE}{CEDILLA}
4: {A}{RING ABOVE}{d WITH CEDILLA}{DOT ABOVE}
5: {A WITH RING ABOVE}{d}{DOT ABOVE}{CEDILLA}
6: {A WITH RING ABOVE}{d}{CEDILLA}{DOT ABOVE}
7: {A WITH RING ABOVE}{d WITH DOT ABOVE}{CEDILLA}
8: {A WITH RING ABOVE}{d WITH CEDILLA}{DOT ABOVE}
9: {ANGSTROM SIGN}{d}{DOT ABOVE}{CEDILLA}
10: {ANGSTROM SIGN}{d}{CEDILLA}{DOT ABOVE}
11: {ANGSTROM SIGN}{d WITH DOT ABOVE}{CEDILLA}
12: {ANGSTROM SIGN}{d WITH CEDILLA}{DOT ABOVE}
Note: the code is intended for use with small strings, and is not suitable for larger ones,
since it has not been optimized for that situation.
- Author:
- M. Davis
Method Summary |
static UnicodeSet |
getSafeStart()
|
java.lang.String |
getSource()
|
static UnicodeSet |
getStarts(int cp)
|
java.lang.String |
next()
|
static void |
permute(java.lang.String source,
boolean skipZeros,
java.util.Set output)
Simple implementation of permutation. |
void |
reset()
Resets the iterator so that one can start again from the beginning. |
void |
setSource(java.lang.String newSource)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
CanonicalIterator
public CanonicalIterator(java.lang.String source)
- Parameters:
source
- string to get results for
getSource
public java.lang.String getSource()
- Returns:
- gets the source: NOTE: it is the NFD form of the source originally passed in
reset
public void reset()
- Resets the iterator so that one can start again from the beginning.
next
public java.lang.String next()
- Returns:
- the next string that is canonically equivalent. The value null is returned when
the iteration is done.
Warning: The strings are not guaranteed to be in any particular order.
setSource
public void setSource(java.lang.String newSource)
- Parameters:
set
- the source string to iterate against. This allows the same iterator to be used
while changing the source string, saving object creation.
permute
public static void permute(java.lang.String source,
boolean skipZeros,
java.util.Set output)
- Simple implementation of permutation.
Warning: The strings are not guaranteed to be in any particular order.
- Parameters:
source
- the string to find permutations forthe
- set to add the results to
getSafeStart
public static UnicodeSet getSafeStart()
- Returns:
- the set of "safe starts", characters that are class zero AND are never non-initial in a decomposition.
getStarts
public static UnicodeSet getStarts(int cp)
- Returns:
- the set of characters whose decompositions start with the given character
Copyright (c) 2001 IBM Corporation and others.