gov.nih.nlm.nls.lvg.Flows

Class ToStripDiacritics

java.lang.Object

gov.nih.nlm.nls.lvg.Flows.Transformation

gov.nih.nlm.nls.lvg.Flows.ToStripDiacritics

All Implemented Interfaces:

java.lang.Cloneable

public class ToStripDiacritics
extends Transformation
implements java.lang.Cloneable

This class strips diacritics characters from a term. Diacritics includes:

• grave accent
• acute accent
• circumflex accent
• tilde
• umlaut
• ring
• cedilla
• slash
• etc.

Diacritic chractrers are in ISO Latin I character set. In other words, it is Unicode Latin-1 supplement block (U+0080 ~ U+00FF). It also in other unicode blocks, such as Latin Extend-A and Latin Extend-B. The diacritics mapping list is configurable by modifying the configuration file (${LVG}/data/Unicode/diacriticMap.data).

History:

Version:

V-2026

Author:

NLM NLS Development Team

See Also:

Design Document , Strip Diacritics

Field Summary

Fields inherited from class gov.nih.nlm.nls.lvg.Flows.Transformation

NO_MUTATE_INFO, UPDATE

Constructor Summary

Constructors

Constructor and Description
ToStripDiacritics()

Method Summary

Modifier and Type	Method and Description
static java.util.Hashtable<java.lang.Character,java.lang.Character>	GetDiacriticMapFromFile(Configuration config) read in diacritics mapping list from configuration file
static void	main(java.lang.String[] args) A unit test driver for this flow component.
static java.util.Vector<LexItem>	Mutate(LexItem in, java.util.Hashtable<java.lang.Character,java.lang.Character> diacriticMap, boolean detailsFlag, boolean mutateFlag) Performs the mutation of this flow component.
static char	StripDiacritic(char inChar, java.util.Hashtable<java.lang.Character,java.lang.Character> diacriticMap) Strip diacritic for an input character
static java.lang.String	StripDiacritics(java.lang.String inStr, java.util.Hashtable<java.lang.Character,java.lang.Character> diacriticMap) Strip diacritic for an input string

Methods inherited from class gov.nih.nlm.nls.lvg.Flows.Transformation

GetTestStr, PrintResult, PrintResults, UpdateLexItem, UpdateLexItem, UpdateLexItem

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ToStripDiacritics

public ToStripDiacritics()

Method Detail

Mutate

public static java.util.Vector<LexItem> Mutate(LexItem in,
                                               java.util.Hashtable<java.lang.Character,java.lang.Character> diacriticMap,
                                               boolean detailsFlag,
                                               boolean mutateFlag)

Performs the mutation of this flow component.

Parameters:

in - a LexItem as the input for this flow component

diacriticMap - a hash table contain the mapping of diacritics

detailsFlag - a boolean flag for processing details information

mutateFlag - a boolean flag for processing mutate information

Returns:

the results from this flow component - a collection (Vector) of LexItems

GetDiacriticMapFromFile

public static java.util.Hashtable<java.lang.Character,java.lang.Character> GetDiacriticMapFromFile(Configuration config)

read in diacritics mapping list from configuration file

Parameters:

config - Configuratin object

Returns:

a hash table of diacritics

StripDiacritic

public static char StripDiacritic(char inChar,
                                  java.util.Hashtable<java.lang.Character,java.lang.Character> diacriticMap)

Strip diacritic for an input character

Parameters:

inChar - input character for stripping diacritic

diacriticMap - user defined diacritics mapping

Returns:

a character of stripped diacritic

StripDiacritics

public static java.lang.String StripDiacritics(java.lang.String inStr,
                                               java.util.Hashtable<java.lang.Character,java.lang.Character> diacriticMap)

Strip diacritic for an input string

Parameters:

inStr - input string for stripping diacritic

diacriticMap - user defined diacritics mapping

Returns:

a string of stripped diacritic

main

public static void main(java.lang.String[] args)

A unit test driver for this flow component.

Parameters:

args - arguments