org.cdlib.xtf.xslt

Class CharUtils

Object

CharUtils

public class CharUtils
extends Object

Provides Unicode character-related utilities to be called by XSLT stylesheets through Saxon's extension function mechanism.

Author:

Martin Haye

Field Summary

Fields

Modifier and Type	Field and Description
private static HashMap<String,CharMap>	accentMapCache Used to avoid recreating AccentMap objects all the time

Constructor Summary

Constructors

Constructor and Description
CharUtils()

Method Summary

Modifier and Type	Method and Description
static String	applyAccentMap(XPathContext context, String filePath, String str) Applies an accent map to a string, normalizing spaces in the process.
private static CharMap	getAccentMap(XPathContext context, String filePath) Get the accent map corresponding to a file.

Methods inherited from class Object

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

Field Detail

accentMapCache

private static HashMap<String,CharMap> accentMapCache

Used to avoid recreating AccentMap objects all the time

Constructor Detail

CharUtils

public CharUtils()

Method Detail

getAccentMap

private static CharMap getAccentMap(XPathContext context,
                                    String filePath)
                             throws IOException

Get the accent map corresponding to a file.

Throws:

IOException - if we can't read the file.

applyAccentMap

public static String applyAccentMap(XPathContext context,
                                    String filePath,
                                    String str)
                             throws IOException

Applies an accent map to a string, normalizing spaces in the process. This function is typically used to remove diacritic marks from alphabetic characters. The accent map is read from the file with the given path. If the path is relative, it is resolved relative to the stylesheet calling this function. Note that the accent map is cached in memory so it doesn't need to be repeatedly read.

Parameters:

context - Context used to figure out which stylesheet is calling the function.

filePath - Path to the accent map file in question (typically leading to conf/accentFolding/accentMap.txt)

str - The string whose characters should be mapped.

Returns:

A new string with its characters mapped.

Throws:

IOException