info.monitorenter.cpdetector.io

类 ParsingDetector

java.lang.Object

info.monitorenter.cpdetector.io.AbstractCodepageDetector

info.monitorenter.cpdetector.io.ParsingDetector

所有已实现的接口:

ICodepageDetector, Serializable, Comparable

public class ParsingDetector
extends AbstractCodepageDetector

A Fa�ade that internally uses an ANTLR - based parser / lexer.

The underlying lexer is more a filter: It does not verify lexical correctness by the means of matching a defined order of tokens, but just filters m_out certain tokens. By now the following tokens are filtered:

Token Name	Match	Lang.	Specification
META_CONTENT_TYPE	"meta" "http-equiv" "=" '"Content-Type"' "content" "=" '"' IDENTIFIER "charset" "=" <EncName> '"'>	HTML	W3C HTML 4.01 Specification Chapter 5.2.2
XML_ENCODING_DECL	"<?xml" VersionInfo "encoding" "=" <EncName>	XML	Extensible Markup Language (XML) 1.0 (Third Edition) Chapter 2.8

作者:

Achim Westermann

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
ParsingDetector()
ParsingDetector(boolean verbose)

方法概要

方法

限定符和类型	方法和说明
Charset	detectCodepage(InputStream in, int length) This method allows to detect the charset encoding from every source (even a String, which an URL does not decorate!).

从类继承的方法 info.monitorenter.cpdetector.io.AbstractCodepageDetector

compareTo, detectCodepage, open

从类继承的方法 java.lang.Object

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

构造器详细资料

ParsingDetector

public ParsingDetector()

ParsingDetector

public ParsingDetector(boolean verbose)

方法详细资料

detectCodepage

public Charset detectCodepage(InputStream in,
                     int length)
                       throws IOException

从接口复制的说明: ICodepageDetector

This method allows to detect the charset encoding from every source (even a String, which an URL does not decorate!).

Note that you cannot reuse the given InputStream unless it supports marking (InputStream.markSupported() == true), you mark the initial position with a sufficient readlimit and invoke reset afterwards (without getting any exception).

参数:

in - An InputStream for the document, that supports mark and a readlimit of argument length.

length - The amount of bytes to take into account. This number should not be longer than the amount of bytes retrievable from the InputStream but should be as long as possible to give the fallback detection (chardet) more hints to guess.

抛出:

IOException