Module org.sejda.sambox

Package org.sejda.sambox.util

Class CharUtils

java.lang.Object

org.sejda.sambox.util.CharUtils

public final class CharUtils
extends Object

Utility class providing chars related helper methods

Author:

Andrea Vacondio

Field Summary

Fields

Modifier and Type	Field	Description
static final byte	ASCII_BACKSPACE
static final byte	ASCII_CARRIAGE_RETURN
static final byte	ASCII_FORM_FEED
static final byte	ASCII_HORIZONTAL_TAB
static final byte	ASCII_LINE_FEED
static final byte	ASCII_NULL
static final byte	ASCII_SPACE

Method Summary

Modifier and Type	Method	Description
static boolean	isBlank(CharSequence cs)
static boolean	isCarriageReturn(int c)
static boolean	isDigit(int c)
static boolean	isEndOfName(int ch)
static boolean	isEOF(int c)
static boolean	isEOL(int c)
static boolean	isHexDigit(int c)
static boolean	isLetter(int c)
static boolean	isLineFeed(int c)
static boolean	isNul(int c)
static boolean	isOctalDigit(int c)
static boolean	isSpace(int c)
static boolean	isWhitespace(int c)	This will tell if a character is whitespace or not.

Methods inherited from class java.lang.Object

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

Field Details

ASCII_LINE_FEED

public static final byte ASCII_LINE_FEED

See Also:

• Constant Field Values

ASCII_FORM_FEED

public static final byte ASCII_FORM_FEED

See Also:

• Constant Field Values

ASCII_CARRIAGE_RETURN

public static final byte ASCII_CARRIAGE_RETURN

See Also:

• Constant Field Values

ASCII_BACKSPACE

public static final byte ASCII_BACKSPACE

See Also:

• Constant Field Values

ASCII_HORIZONTAL_TAB

public static final byte ASCII_HORIZONTAL_TAB

See Also:

• Constant Field Values

ASCII_NULL

public static final byte ASCII_NULL

See Also:

• Constant Field Values

ASCII_SPACE

public static final byte ASCII_SPACE

See Also:

• Constant Field Values

Method Details

isEndOfName

public static boolean isEndOfName(int ch)

Parameters:

ch - The character

Returns:

true if the character terminates a PDF name, otherwise false.

isEOF

public static boolean isEOF(int c)

Parameters:

c -

Returns:

true if the char is end of file

isEOL

public static boolean isEOL(int c)

Parameters:

c - The character to check against end of line

Returns:

true if the character is a line feed or a carriage return

isLineFeed

public static boolean isLineFeed(int c)

isCarriageReturn

public static boolean isCarriageReturn(int c)

isWhitespace

public static boolean isWhitespace(int c)

This will tell if a character is whitespace or not. These values are specified in table 1 (page 12) of ISO 32000-1:2008.

Parameters:

c - The character to check against whitespace

Returns:

true if the character is a whitespace character.

isNul

public static boolean isNul(int c)

isSpace

public static boolean isSpace(int c)

Parameters:

c - The character to check against space

Returns:

true if the character is a space character.

isDigit

public static boolean isDigit(int c)

Parameters:

c - The character to be checked

Returns:

true if the character is a digit.

isLetter

public static boolean isLetter(int c)

Parameters:

c - The character to be checked

Returns:

true if the character is a letter (case unsensitive).

isOctalDigit

public static boolean isOctalDigit(int c)

Parameters:

c - The character to be checked

Returns:

true if the character is an octal digit.

isHexDigit

public static boolean isHexDigit(int c)

Parameters:

c - The character to be checked

Returns:

true if the character is an hex digit.

isBlank

public static boolean isBlank(CharSequence cs)