org.zkoss.xel.fn
Class StringFns

java.lang.Object
  org.zkoss.xel.fn.StringFns

public class StringFns
extends Object

Functions to manipulate strings in EL.

Author:

tomyeh

Constructor Summary

StringFns()

Method Summary

static String	cat(String s1, String s2) Catenates two strings.
static String	cat3(String s1, String s2, String s3) Catenates three strings.
static String	cat4(String s1, String s2, String s3, String s4) Catenates four strings.
static String	cat5(String s1, String s2, String s3, String s4, String s5) Catenates four strings.
static String	eatQuot(String s) Eliminates single and double quotations to avoid JavaScript injection.
static boolean	endsWith(String s1, String s2) Tests if this string ends with the specified suffix.
static String	join(Object[] ss, String separator) Joins an array of string.
static String	replace(String src, String from, String to) Replaces all occurrances of 'from' in 'src' with 'to'
static String[]	split(String s, String separator) Splits a string.
static boolean	startsWith(String s1, String s2) Tests if this string starts with the specified prefix.
static String	substring(String s, int from, int to) Returns a new string that is a substring of this string.
static String	toLowerCase(String s) Converts all of the characters in this String to upper case using the rules of the current Locale.
static String	toUpperCase(String s) Converts all of the characters in this String to upper case using the rules of the current Locale.
static String	trim(String s) Returns a copy of the string, with leading and trailing whitespace omitted.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringFns

public StringFns()

Method Detail

cat

public static String cat(String s1,
                         String s2)

Catenates two strings. Note: null is considered as empty.

cat3

public static String cat3(String s1,
                          String s2,
                          String s3)

Catenates three strings. Note: null is considered as empty.

cat4

public static String cat4(String s1,
                          String s2,
                          String s3,
                          String s4)

Catenates four strings. Note: null is considered as empty.

cat5

public static String cat5(String s1,
                          String s2,
                          String s3,
                          String s4,
                          String s5)

Catenates four strings. Note: null is considered as empty.

toLowerCase

public static String toLowerCase(String s)

Converts all of the characters in this String to upper case using the rules of the current Locale.

Since:

5.0.7

See Also:

Locales.getCurrent()

toUpperCase

public static String toUpperCase(String s)

Converts all of the characters in this String to upper case using the rules of the current Locale.

Since:

5.0.7

See Also:

Locales.getCurrent()

trim

public static String trim(String s)

Returns a copy of the string, with leading and trailing whitespace omitted.

Since:

5.0.7

split

public static String[] split(String s,
                             String separator)

Splits a string.

Since:

5.0.7

join

public static String join(Object[] ss,
                          String separator)

Joins an array of string. since 5.0.7

startsWith

public static boolean startsWith(String s1,
                                 String s2)

Tests if this string starts with the specified prefix.

Since:

5.0.7

endsWith

public static boolean endsWith(String s1,
                               String s2)

Tests if this string ends with the specified suffix.

Since:

5.0.7

substring

public static String substring(String s,
                               int from,
                               int to)

Returns a new string that is a substring of this string.

Since:

5.0.7

replace

public static String replace(String src,
                             String from,
                             String to)

Replaces all occurrances of 'from' in 'src' with 'to'

eatQuot

public static String eatQuot(String s)

Eliminates single and double quotations to avoid JavaScript injection. It eliminates all quotations. In other words, the specified string shall NOT contain any quotations.

It is used to avoid JavaScript injection. For exmple, in DSP or JSP pages, the following codes is better to escape with this method.

Since:

3.5.2