Class CssInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.PushbackInputStream

org.idpf.epubcheck.util.css.CssInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class CssInputStream
extends PushbackInputStream

An InputStream for CSS files that detects and skips past BOMs, and peeks for @charset rules.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static enum	CssInputStream.Endian

Field Summary

Fields

Modifier and Type	Field	Description
(package private) com.google.common.base.Optional<String>	bom
private static final Map<String,byte[]>	boms
(package private) com.google.common.base.Optional<String>	charset
private boolean	debug
private static final int	MAX_PUSHBACK

Fields inherited from class PushbackInputStream

buf, pos

Fields inherited from class FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
CssInputStream(InputStream in)

Method Summary

Modifier and Type	Method	Description
private String	getBOM()
final com.google.common.base.Optional<String>	getBomCharset()	Get the character set as detected from a BOM.
final com.google.common.base.Optional<String>	getCssCharset()	Get the value of the CSS @charset rule, if present.
private String	getCssCharset(String bom)
private static String	map(byte[] data)

Methods inherited from class PushbackInputStream

available, close, mark, markSupported, read, read, reset, skip, transferTo, unread, unread, unread

Methods inherited from class FilterInputStream

read

Methods inherited from class InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes

Methods inherited from class Object

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

Field Details

bom

com.google.common.base.Optional<String> bom

charset

com.google.common.base.Optional<String> charset

MAX_PUSHBACK

private static final int MAX_PUSHBACK

See Also:

• Constant Field Values

boms

private static final Map<String,byte[]> boms

debug

private boolean debug

Constructor Details

CssInputStream

public CssInputStream(InputStream in)
               throws IOException

Throws:

IOException

Method Details

getBOM

private String getBOM()
               throws IOException

Throws:

IOException

getCssCharset

private String getCssCharset(String bom)
                      throws IOException

Throws:

IOException

map

private static String map(byte[] data)

getBomCharset

public final com.google.common.base.Optional<String> getBomCharset()

Get the character set as detected from a BOM. If present, the returned string is one of 'UTF-32BE', 'UTF-32LE", 'UTF-8", 'UTF-16BE' or 'UTF-16LE".

getCssCharset

public final com.google.common.base.Optional<String> getCssCharset()

Get the value of the CSS @charset rule, if present.