org.htmlparser.nodes

类 TagNode

java.lang.Object

org.htmlparser.nodes.AbstractNode

org.htmlparser.nodes.TagNode

所有已实现的接口:

java.io.Serializable, java.lang.Cloneable, Node, Tag

直接已知子类:

BaseHrefTag, CompositeTag, DoctypeTag, FrameTag, ImageTag, InputTag, JspTag, MetaTag, ProcessingInstructionTag

public class TagNode
extends AbstractNode
implements Tag

TagNode represents a generic tag. If no scanner is registered for a given tag name, this is what you get. This is also the base class for all tags created by the parser.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
TagNode() Create an empty tag.
TagNode(Page page, int start, int end, java.util.Vector attributes) Create a tag with the location and attributes provided
TagNode(TagNode tag, TagScanner scanner) Create a tag like the one provided.

方法概要

限定符和类型	方法和说明
void	accept(NodeVisitor visitor) Default tag visiting code.
boolean	breaksFlow() Determines if the given tag breaks the flow of text.
java.lang.String	getAttribute(java.lang.String name) Returns the value of an attribute.
Attribute	getAttributeEx(java.lang.String name) Returns the attribute with the given name.
java.util.Vector	getAttributesEx() Gets the attributes in the tag.
java.lang.String[]	getEnders() Return the set of tag names that cause this tag to finish.
int	getEndingLineNumber() Get the line number where this tag ends.
Tag	getEndTag() Get the end tag for this (composite) tag.
java.lang.String[]	getEndTagEnders() Return the set of end tag names that cause this tag to finish.
java.lang.String[]	getIds() Return the set of names handled by this tag.
java.lang.String	getRawTagName() Return the name of this tag.
int	getStartingLineNumber() Get the line number where this tag starts.
int	getTagBegin() Gets the nodeBegin.
int	getTagEnd() Gets the nodeEnd.
java.lang.String	getTagName() Return the name of this tag.
java.lang.String	getText() Return the text contained in this tag.
Scanner	getThisScanner() Return the scanner associated with this tag.
boolean	isEmptyXmlTag() Is this an empty xml tag of the form <tag/>.
boolean	isEndTag() Predicate to determine if this tag is an end tag (i.e.
void	removeAttribute(java.lang.String key) Remove the attribute with the given key, if it exists.
void	setAttribute(Attribute attribute) Set an attribute.
void	setAttribute(java.lang.String key, java.lang.String value) Set attribute with given key, value pair.
void	setAttribute(java.lang.String key, java.lang.String value, char quote) Set attribute with given key, value pair where the value is quoted by quote.
void	setAttributeEx(Attribute attribute) Set an attribute.
void	setAttributesEx(java.util.Vector attribs) Sets the attributes.
void	setEmptyXmlTag(boolean emptyXmlTag) Set this tag to be an empty xml node, or not.
void	setEndTag(Tag end) Set the end tag for this (composite) tag.
void	setTagBegin(int tagBegin) Sets the nodeBegin.
void	setTagEnd(int tagEnd) Sets the nodeEnd.
void	setTagName(java.lang.String name) Set the name of this tag.
void	setText(java.lang.String text) Parses the given text to create the tag contents.
void	setThisScanner(Scanner scanner) Set the scanner associated with this tag.
java.lang.String	toHtml(boolean verbatim) Render the tag as HTML.
java.lang.String	toPlainTextString() Get the plain text from this node.
java.lang.String	toString() Print the contents of the tag.

从类继承的方法 org.htmlparser.nodes.AbstractNode

clone, collectInto, doSemanticAction, getChildren, getEndPosition, getFirstChild, getLastChild, getNextSibling, getPage, getParent, getPreviousSibling, getStartPosition, setChildren, setEndPosition, setPage, setParent, setStartPosition, toHtml

从类继承的方法 java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.htmlparser.Node

clone, collectInto, doSemanticAction, getChildren, getEndPosition, getFirstChild, getLastChild, getNextSibling, getPage, getParent, getPreviousSibling, getStartPosition, setChildren, setEndPosition, setPage, setParent, setStartPosition, toHtml

构造器详细资料

TagNode

public TagNode()

Create an empty tag.

TagNode

public TagNode(Page page,
               int start,
               int end,
               java.util.Vector attributes)

Create a tag with the location and attributes provided

参数:

page - The page this tag was read from.

start - The starting offset of this node within the page.

end - The ending offset of this node within the page.

attributes - The list of attributes that were parsed in this tag.

另请参阅:

Attribute

TagNode

public TagNode(TagNode tag,
               TagScanner scanner)

Create a tag like the one provided.

参数:

tag - The tag to emulate.

scanner - The scanner for this tag.

方法详细资料

getAttribute

public java.lang.String getAttribute(java.lang.String name)

Returns the value of an attribute.

指定者:

getAttribute 在接口中 Tag

参数:

name - Name of attribute, case insensitive.

返回:

The value associated with the attribute or null if it does not exist, or is a stand-alone or

另请参阅:

Tag.setAttribute(java.lang.String, java.lang.String)

setAttribute

public void setAttribute(java.lang.String key,
                         java.lang.String value)

Set attribute with given key, value pair. Figures out a quote character to use if necessary.

指定者:

setAttribute 在接口中 Tag

参数:

key - The name of the attribute.

value - The value of the attribute.

另请参阅:

Tag.getAttribute(java.lang.String), Tag.setAttribute(String,String,char)

removeAttribute

public void removeAttribute(java.lang.String key)

Remove the attribute with the given key, if it exists.

指定者:

removeAttribute 在接口中 Tag

参数:

key - The name of the attribute.

setAttribute

public void setAttribute(java.lang.String key,
                         java.lang.String value,
                         char quote)

Set attribute with given key, value pair where the value is quoted by quote.

指定者:

setAttribute 在接口中 Tag

参数:

key - The name of the attribute.

value - The value of the attribute.

quote - The quote character to be used around value. If zero, it is an unquoted value.

另请参阅:

Tag.getAttribute(java.lang.String)

getAttributeEx

public Attribute getAttributeEx(java.lang.String name)

Returns the attribute with the given name.

指定者:

getAttributeEx 在接口中 Tag

参数:

name - Name of attribute, case insensitive.

返回:

The attribute or null if it does not exist.

另请参阅:

Tag.setAttributeEx(org.htmlparser.Attribute)

setAttributeEx

public void setAttributeEx(Attribute attribute)

Set an attribute.

指定者:

setAttributeEx 在接口中 Tag

参数:

attribute - The attribute to set.

另请参阅:

setAttribute(Attribute)

setAttribute

public void setAttribute(Attribute attribute)

Set an attribute. This replaces an attribute of the same name. To set the zeroth attribute (the tag name), use setTagName().

参数:

attribute - The attribute to set.

getAttributesEx

public java.util.Vector getAttributesEx()

Gets the attributes in the tag.

指定者:

getAttributesEx 在接口中 Tag

返回:

Returns the list of Attributes in the tag. The first element is the tag name, subsequent elements being either whitespace or real attributes.

另请参阅:

Tag.setAttributesEx(java.util.Vector)

getTagName

public java.lang.String getTagName()

Return the name of this tag.

Note: This value is converted to uppercase and does not begin with "/" if it is an end tag. Nor does it end with a slash in the case of an XML type tag. To get at the original text of the tag name use getRawTagName(). The conversion to uppercase is performed with an ENGLISH locale.

指定者:

getTagName 在接口中 Tag

返回:

The tag name.

另请参阅:

Tag.setTagName(java.lang.String)

getRawTagName

public java.lang.String getRawTagName()

Return the name of this tag.

指定者:

getRawTagName 在接口中 Tag

返回:

The tag name or null if this tag contains nothing or only whitespace.

setTagName

public void setTagName(java.lang.String name)

Set the name of this tag. This creates or replaces the first attribute of the tag (the zeroth element of the attribute vector).

指定者:

setTagName 在接口中 Tag

参数:

name - The tag name.

另请参阅:

Tag.getTagName()

getText

public java.lang.String getText()

Return the text contained in this tag.

指定者:

getText 在接口中 Node

覆盖:

getText 在类中 AbstractNode

返回:

The complete contents of the tag (within the angle brackets).

另请参阅:

Node.setText(java.lang.String)

setAttributesEx

public void setAttributesEx(java.util.Vector attribs)

Sets the attributes. NOTE: Values of the extended hashtable are two element arrays of String, with the first element being the original name (not uppercased), and the second element being the value.

指定者:

setAttributesEx 在接口中 Tag

参数:

attribs - The attribute collection to set.

另请参阅:

Tag.getAttributesEx()

setTagBegin

public void setTagBegin(int tagBegin)

Sets the nodeBegin.

参数:

tagBegin - The nodeBegin to set

getTagBegin

public int getTagBegin()

Gets the nodeBegin.

返回:

The nodeBegin value.

setTagEnd

public void setTagEnd(int tagEnd)

Sets the nodeEnd.

参数:

tagEnd - The nodeEnd to set

getTagEnd

public int getTagEnd()

Gets the nodeEnd.

返回:

The nodeEnd value.

setText

public void setText(java.lang.String text)

Parses the given text to create the tag contents.

指定者:

setText 在接口中 Node

覆盖:

setText 在类中 AbstractNode

参数:

text - A string of the form <TAGNAME xx="yy">.

另请参阅:

Node.getText()

toPlainTextString

public java.lang.String toPlainTextString()

Get the plain text from this node.

指定者:

toPlainTextString 在接口中 Node

指定者:

toPlainTextString 在类中 AbstractNode

返回:

An empty string (tag contents do not display in a browser). If you want this tags HTML equivalent, use toHtml().

toHtml

public java.lang.String toHtml(boolean verbatim)

Render the tag as HTML. A call to a tag's toHtml() method will render it in HTML.

指定者:

toHtml 在接口中 Node

指定者:

toHtml 在类中 AbstractNode

参数:

verbatim - If true return as close to the original page text as possible.

返回:

The tag as an HTML fragment.

另请参阅:

Node.toHtml()

toString

public java.lang.String toString()

Print the contents of the tag.

指定者:

toString 在接口中 Node

指定者:

toString 在类中 AbstractNode

返回:

An string describing the tag. For text that looks like HTML use #toHtml().

breaksFlow

public boolean breaksFlow()

Determines if the given tag breaks the flow of text.

指定者:

breaksFlow 在接口中 Tag

返回:

true if following text would start on a new line, false otherwise.

accept

public void accept(NodeVisitor visitor)

Default tag visiting code. Based on isEndTag(), calls either visitTag() or visitEndTag().

指定者:

accept 在接口中 Node

指定者:

accept 在类中 AbstractNode

参数:

visitor - The visitor that is visiting this node.

isEmptyXmlTag

public boolean isEmptyXmlTag()

Is this an empty xml tag of the form <tag/>.

指定者:

isEmptyXmlTag 在接口中 Tag

返回:

true if the last character of the last attribute is a '/'.

setEmptyXmlTag

public void setEmptyXmlTag(boolean emptyXmlTag)

Set this tag to be an empty xml node, or not. Adds or removes an ending slash on the tag.

指定者:

setEmptyXmlTag 在接口中 Tag

参数:

emptyXmlTag - If true, ensures there is an ending slash in the node, i.e. <tag/>, otherwise removes it.

isEndTag

public boolean isEndTag()

Predicate to determine if this tag is an end tag (i.e. </HTML>).

指定者:

isEndTag 在接口中 Tag

返回:

true if this tag is an end tag.

getStartingLineNumber

public int getStartingLineNumber()

Get the line number where this tag starts.

指定者:

getStartingLineNumber 在接口中 Tag

返回:

The (zero based) line number in the page where this tag starts.

getEndingLineNumber

public int getEndingLineNumber()

Get the line number where this tag ends.

指定者:

getEndingLineNumber 在接口中 Tag

返回:

The (zero based) line number in the page where this tag ends.

getIds

public java.lang.String[] getIds()

Return the set of names handled by this tag. Since this a a generic tag, it has no ids.

指定者:

getIds 在接口中 Tag

返回:

The names to be matched that create tags of this type.

getEnders

public java.lang.String[] getEnders()

Return the set of tag names that cause this tag to finish. These are the normal (non end tags) that if encountered while scanning (a composite tag) will cause the generation of a virtual tag. Since this a a non-composite tag, the default is no enders.

指定者:

getEnders 在接口中 Tag

返回:

The names of following tags that stop further scanning.

getEndTagEnders

public java.lang.String[] getEndTagEnders()

Return the set of end tag names that cause this tag to finish. These are the end tags that if encountered while scanning (a composite tag) will cause the generation of a virtual tag. Since this a a non-composite tag, it has no end tag enders.

指定者:

getEndTagEnders 在接口中 Tag

返回:

The names of following end tags that stop further scanning.

getThisScanner

public Scanner getThisScanner()

Return the scanner associated with this tag.

指定者:

getThisScanner 在接口中 Tag

返回:

The scanner associated with this tag.

另请参阅:

Tag.setThisScanner(org.htmlparser.scanners.Scanner)

setThisScanner

public void setThisScanner(Scanner scanner)

Set the scanner associated with this tag.

指定者:

setThisScanner 在接口中 Tag

参数:

scanner - The scanner for this tag.

另请参阅:

Tag.getThisScanner()

getEndTag

public Tag getEndTag()

Get the end tag for this (composite) tag. For a non-composite tag this always returns null.

指定者:

getEndTag 在接口中 Tag

返回:

The tag that terminates this composite tag, i.e. </HTML>.

另请参阅:

Tag.setEndTag(org.htmlparser.Tag)

setEndTag

public void setEndTag(Tag end)

Set the end tag for this (composite) tag. For a non-composite tag this is a no-op.

指定者:

setEndTag 在接口中 Tag

参数:

end - The tag that terminates this composite tag, i.e. </HTML>.

另请参阅:

Tag.getEndTag()