org.zkoss.xel.fn
Class StringFns

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

public class StringFns
extends java.lang.Object

Functions to manipulate strings in EL.

Author:

tomyeh

Constructor Summary

StringFns()

Method Summary

static java.lang.String	cat(java.lang.Object o1, java.lang.Object o2) Concatenates two objects.
static java.lang.String	cat3(java.lang.Object o1, java.lang.Object o2, java.lang.Object o3) Concatenates three objects.
static java.lang.String	cat4(java.lang.Object o1, java.lang.Object o2, java.lang.Object o3, java.lang.Object o4) Concatenates four objects.
static java.lang.String	cat5(java.lang.Object o1, java.lang.Object o2, java.lang.Object o3, java.lang.Object o4, java.lang.Object o5) Concatenates five objects.
static java.lang.String	eatQuot(java.lang.String s) Eliminates single and double quotations to avoid JavaScript injection.
static boolean	endsWith(java.lang.String s1, java.lang.String s2) Tests if this string ends with the specified suffix.
static java.lang.String	join(java.lang.Object[] ss, java.lang.String separator) Joins an array of string.
static java.lang.String	replace(java.lang.String src, java.lang.String from, java.lang.String to) Replaces all occurrences of 'from' in 'src' with 'to'
static java.lang.String[]	split(java.lang.String s, java.lang.String separator) Splits a string.
static boolean	startsWith(java.lang.String s1, java.lang.String s2) Tests if this string starts with the specified prefix.
static java.lang.String	substring(java.lang.String s, int from, int to) Returns a new string that is a substring of this string.
static java.lang.String	toLowerCase(java.lang.String s) Converts all of the characters in this String to upper case using the rules of the current Locale.
static java.lang.String	toUpperCase(java.lang.String s) Converts all of the characters in this String to upper case using the rules of the current Locale.
static java.lang.String	trim(java.lang.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 java.lang.String cat(java.lang.Object o1,
                                   java.lang.Object o2)

Concatenates two objects. Note: null is considered as empty.

cat3

public static java.lang.String cat3(java.lang.Object o1,
                                    java.lang.Object o2,
                                    java.lang.Object o3)

Concatenates three objects. Note: null is considered as empty.

cat4

public static java.lang.String cat4(java.lang.Object o1,
                                    java.lang.Object o2,
                                    java.lang.Object o3,
                                    java.lang.Object o4)

Concatenates four objects. Note: null is considered as empty.

cat5

public static java.lang.String cat5(java.lang.Object o1,
                                    java.lang.Object o2,
                                    java.lang.Object o3,
                                    java.lang.Object o4,
                                    java.lang.Object o5)

Concatenates five objects. Note: null is considered as empty.

toLowerCase

public static java.lang.String toLowerCase(java.lang.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 java.lang.String toUpperCase(java.lang.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 java.lang.String trim(java.lang.String s)

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

Since:

5.0.7

split

public static java.lang.String[] split(java.lang.String s,
                                       java.lang.String separator)

Splits a string.

Since:

5.0.7

join

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

Joins an array of string. since 5.0.7

startsWith

public static boolean startsWith(java.lang.String s1,
                                 java.lang.String s2)

Tests if this string starts with the specified prefix.

Since:

5.0.7

endsWith

public static boolean endsWith(java.lang.String s1,
                               java.lang.String s2)

Tests if this string ends with the specified suffix.

Since:

5.0.7

substring

public static java.lang.String substring(java.lang.String s,
                                         int from,
                                         int to)

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

Since:

5.0.7

replace

public static java.lang.String replace(java.lang.String src,
                                       java.lang.String from,
                                       java.lang.String to)

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

eatQuot

public static java.lang.String eatQuot(java.lang.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 example, in DSP or JSP pages, the following codes is better to escape with this method.

Since:

3.5.2