com.ctc.wstx.util

Class StringUtil

java.lang.Object

com.ctc.wstx.util.StringUtil

public final class StringUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
StringUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static void	appendLF(StringBuilder sb)
static String	concatEntries(Collection<?> coll, String sep, String lastSep)
static boolean	encodingStartsWith(String enc, String prefix)
static boolean	equalEncodings(String str1, String str2) Method that implements a loose String compairon for encoding Strings.
static String	getLF()
static boolean	isAllWhitespace(char[] ch, int start, int len)
static boolean	isAllWhitespace(String str)
static boolean	isSpace(char c) Note that it is assumed that any "weird" white space (xml 1.1 LSEP and NEL) have been replaced by canonical alternatives (linefeed for element content, regular space for attributes)
static boolean	matches(String str, char[] cbuf, int offset, int len)
static String	normalizeSpaces(char[] buf, int origStart, int origEnd) Method that will check character array passed, and remove all "extra" spaces (leading and trailing space), and normalize other white space (more than one consequtive space character replaced with a single space).
static String	trimEncoding(String str, boolean upperCase) Method that will remove all non-alphanumeric characters, and optionally upper-case included letters, from the given String.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringUtil

public StringUtil()

Method Detail

getLF

public static String getLF()

appendLF

public static void appendLF(StringBuilder sb)

concatEntries

public static String concatEntries(Collection<?> coll,
                   String sep,
                   String lastSep)

normalizeSpaces

public static String normalizeSpaces(char[] buf,
                     int origStart,
                     int origEnd)

Method that will check character array passed, and remove all "extra" spaces (leading and trailing space), and normalize other white space (more than one consequtive space character replaced with a single space).

NOTE: we only remove explicit space characters (char code 0x0020); the reason being that other white space must have come from non-normalizable sources, ie. via entity expansion, and is thus not to be normalized

Parameters:

buf - Buffer that contains the String to check

origStart - Offset of the first character of the text to check in the buffer

origEnd - Offset of the character following the last character of the text (as per usual Java API convention)

Returns:

Normalized String, if any white space was removed or normalized; null if no changes were necessary.

isAllWhitespace

public static boolean isAllWhitespace(String str)

isAllWhitespace

public static boolean isAllWhitespace(char[] ch,
                      int start,
                      int len)

equalEncodings

public static boolean equalEncodings(String str1,
                     String str2)

Method that implements a loose String compairon for encoding Strings. It will work like String.equalsIgnoreCase(java.lang.String), except that it will also ignore all hyphen, underscore and space characters.

encodingStartsWith

public static boolean encodingStartsWith(String enc,
                         String prefix)

trimEncoding

public static String trimEncoding(String str,
                  boolean upperCase)

Method that will remove all non-alphanumeric characters, and optionally upper-case included letters, from the given String.

matches

public static boolean matches(String str,
              char[] cbuf,
              int offset,
              int len)

isSpace

public static final boolean isSpace(char c)

Note that it is assumed that any "weird" white space (xml 1.1 LSEP and NEL) have been replaced by canonical alternatives (linefeed for element content, regular space for attributes)