prettify.parser

Class Util

java.lang.Object

prettify.parser.Util

public class Util
extends Object

Common Utilities. Some of the functions are port from JavaScript.

Author:

Chan Wai Shing

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Util()

Method Summary

Modifier and Type	Method and Description
static Boolean	getVariableValueAsBoolean(Object var) Treat a variable as an boolean in JavaScript style.
static Integer	getVariableValueAsInteger(Object var) Treat a variable as an integer in JavaScript style.
static String	join(List<String> strings) Join the strings into one string.
static String	join(List<String> strings, String delimiter) Join the strings into one string with delimiter in between.
static String	join(String[] strings) Join the strings into one string.
static String	join(String[] strings, String delimiter) Join the strings into one string with delimiter in between.
static String[]	match(Pattern pattern, String string, boolean isGlobal) Get all the matches for string compiled by pattern.
static List<Object>	removeDuplicates(List<Object> decorations, String source) Remove identical adjacent tags from decorations.
static boolean	test(Pattern pattern, String string) Test whether the string has at least one match by pattern.

Methods inherited from class java.lang.Object

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

Constructor Detail

Util

protected Util()

Method Detail

getVariableValueAsBoolean

public static Boolean getVariableValueAsBoolean(Object var)

Treat a variable as an boolean in JavaScript style. Note this function can only handle string, integer and boolean currently. All other data type, if null, return false, not null return true.

Parameters:

var - the variable to get value from

Returns:

the boolean value

getVariableValueAsInteger

public static Integer getVariableValueAsInteger(Object var)

Treat a variable as an integer in JavaScript style. Note this function can only handle integer and boolean currently.

Parameters:

var - the variable to get value from

Returns:

the integer value

Throws:

IllegalArgumentException - the data type of var is neither integer nor boolean.

match

public static String[] match(Pattern pattern,
                             String string,
                             boolean isGlobal)

Get all the matches for string compiled by pattern. If isGlobal is true, the return results will only include the group 0 matches. It is similar to string.match(regexp) in JavaScript.

Parameters:

pattern - the regexp

string - the string

isGlobal - similar to JavaScript /g flag

Returns:

all matches

test

public static boolean test(Pattern pattern,
                           String string)

Test whether the string has at least one match by pattern.

Parameters:

pattern - the regexp

string - the string to test

Returns:

true if at least one match, false if no match

join

public static String join(List<String> strings)

Join the strings into one string.

Parameters:

strings - the string list to join

Returns:

the joined string

join

public static String join(List<String> strings,
                          String delimiter)

Join the strings into one string with delimiter in between.

Parameters:

strings - the string list to join

delimiter - the delimiter

Returns:

the joined string

join

public static String join(String[] strings)

Join the strings into one string.

Parameters:

strings - the string list to join

Returns:

the joined string

join

public static String join(String[] strings,
                          String delimiter)

Join the strings into one string with delimiter in between. It is similar to RegExpObject.test(string) in JavaScript.

Parameters:

strings - the string list to join

delimiter - the delimiter

Returns:

the joined string

removeDuplicates

public static List<Object> removeDuplicates(List<Object> decorations,
                                            String source)

Remove identical adjacent tags from decorations.

Parameters:

decorations - see Job.decorations

source - the source code

Returns:

the decorations after treatment

Throws:

IllegalArgumentException - the size of decoration is not a multiple of 2