Class CharacterEscapeTest

java.lang.Object

CharacterEscapeTest

public class CharacterEscapeTest
extends Object

Constructor Summary

Constructors

Constructor	Description
CharacterEscapeTest()

Method Summary

Modifier and Type	Method	Description
void	testBackspaceRegex()	The backspace regex:
void	testBellRegex()	The bell regex:
void	testCarriageReturnRegex()	The carriageReturn regex:
void	testControlCharacterRegex()	The controlCharacter regex:
void	testEscapeRegex()	The escape regex:
void	testFormFeedRegex()	The formFeed regex:
void	testHexadecimalRegex()	The hexadecimal regex:
void	testNewLineRegex()	The newLine regex:
void	testOctalRegex()	The octal regex:
void	testOtherRegex()	The otherChar regex:
void	testTabRegex()	The tab regex:
void	testUnicodeRegex()	The unicode regex:
void	testVerticalTabRegex()	The verticalTab regex:

Methods inherited from class java.lang.Object

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

Constructor Detail

CharacterEscapeTest

public CharacterEscapeTest()

Method Detail

testBellRegex

public void testBellRegex()

The bell regex:

\a

Matches the bell character.

testBackspaceRegex

public void testBackspaceRegex()

The backspace regex:

\b

Matches the backspace character.

testTabRegex

public void testTabRegex()

The tab regex:

\t

Matches the tab character.

testCarriageReturnRegex

public void testCarriageReturnRegex()

The carriageReturn regex:

\r

Matches the carriage return character.

testVerticalTabRegex

public void testVerticalTabRegex()

The verticalTab regex:

\v

Matches the vertical tab character.

testFormFeedRegex

public void testFormFeedRegex()

The formFeed regex:

\f

Matches the form feed character.

testNewLineRegex

public void testNewLineRegex()

The newLine regex:

\n

Matches the new line character.

testEscapeRegex

public void testEscapeRegex()

The escape regex:

\e

Matches the escape character.

testOctalRegex

public void testOctalRegex()

The octal regex:

\nnn

Matches an octal character.

In this example we use the following regex:

\w\40\w

This matches any letter or digit followed by the character defined in the octal representation by 40, which is the space character, which is then followed by another letter or digit.

Using the String "a bc d" we obtain two results:

1: "a b"

2: "c d"

testHexadecimalRegex

public void testHexadecimalRegex()

The hexadecimal regex:

\x nn

Matches an hexadecimal character.

In this example we use the following regex:

\w\x20\w

This matches any letter or digit followed by the character defined in the hexadecimal representation by 20, which is the space character, which is then followed by another letter or digit.

Using the String "a bc d" we obtain two results:

1: "a b"

2: "c d"

testControlCharacterRegex

public void testControlCharacterRegex()

The controlCharacter regex:

\cX

Matches a control character.

In this example we use the regex:

\cC

This matches the control character .

testUnicodeRegex

public void testUnicodeRegex()

The unicode regex:

\u nnnn

Matches an unicode character.

In this example we use the following regex:

\w\u20\w

This matches any letter or digit followed by the character defined in the unicode representation by 20, which is the space character, which is then followed by another letter or digit.

Using the String "a bc d" we obtain two results:

1: "a b"

2: "c d"

testOtherRegex

public void testOtherRegex()

The otherChar regex:

\X

This regex is used to represent potential special characters.

In this example we use the following regex:

\d+[\+-quickExpr\*]\d+

This expression should match any sum, subtraction, multiplication of two numbers, for example:

With the String:

(2+2) * 3*9

Results:

1: 2+2

2: 3*9