Package org.apache.wiki.parser

Class MarkupParser

java.lang.Object

org.apache.wiki.parser.MarkupParser

Direct Known Subclasses:

JSPWikiMarkupParser, MarkdownParser

public abstract class MarkupParser
extends Object

Provides an abstract class for the parser instances.

Since:

2.4

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CLASS_ATTACHMENT	The value for anchor element class attributes when used for attachments.
static final String	CLASS_EDITPAGE	The value for anchor element class attributes when used for edit page links.
static final String	CLASS_EXTERNAL	The value for anchor element class attributes when used for external links.
static final String	CLASS_FOOTNOTE	The value for anchor element class attributes when used for footnote links.
static final String	CLASS_FOOTNOTE_REF	The value for anchor element class attributes when used for footnote links.
static final String	CLASS_INTERWIKI	The value for anchor element class attributes when used for interwiki page links.
static final String[]	CLASS_TYPES
static final String	CLASS_WIKIPAGE	The value for anchor element class attributes when used for wiki page (normal) links.
static final String	HASHLINK
protected final ArrayList<StringTransmutator>	m_attachmentLinkMutatorChain
protected final Context	m_context
protected final Engine	m_engine
protected final ArrayList<StringTransmutator>	m_externalLinkMutatorChain
protected final ArrayList<HeadingListener>	m_headingListenerChain
protected PushbackReader	m_in
protected List<org.apache.oro.text.regex.Pattern>	m_inlineImagePatterns	Keeps image regexp Patterns
protected boolean	m_inlineImages
protected final ArrayList<StringTransmutator>	m_linkMutators
protected final LinkParsingOperations	m_linkParsingOperations
protected final ArrayList<StringTransmutator>	m_localLinkMutatorChain	Optionally stores internal wikilinks
protected boolean	m_parseAccessRules
static final String	OUTLINK	Outlink css class.
static final String	OUTLINK_IMAGE	Name of the outlink image; relative path to the JSPWiki directory.
static final String	PROP_ALLOWHTML	If set to "true", allows using raw HTML within Wiki text.
static final String	PROP_CAMELCASELINKS	If true, consider CamelCase hyperlinks as well.
static final String	PROP_PLAINURIS	If true, all hyperlinks are translated as well, regardless whether they are surrounded by brackets.
static final String	PROP_RUNPLUGINS	If set to "true", enables plugins during parsing
static final String	PROP_USEATTACHMENTIMAGE	If true, all outward attachment info links have a small link image appended.
static final String	PROP_USEOUTLINKIMAGE	If true, all outward links (external links) have a small link image appended.
static final String	PROP_USERELNOFOLLOW	If set to "true", all external links are tagged with 'rel="nofollow"'
protected static final int	PUSHBACK_BUFFER_SIZE	Allow this many characters to be pushed back in the stream.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MarkupParser(Context context, Reader in)	Constructs a MarkupParser.

Method Summary

Modifier and Type	Method	Description
void	addAttachmentLinkHook(StringTransmutator mutator)	Adds a hook for processing attachment links.
void	addExternalLinkHook(StringTransmutator mutator)	Adds a hook for processing external links.
void	addHeadingListener(HeadingListener listener)	Adds a HeadingListener to the parser chain.
void	addLinkTransmutator(StringTransmutator mutator)	Adds a hook for processing link texts.
void	addLocalLinkHook(StringTransmutator mutator)	Adds a hook for processing local links.
static String	cleanLink(String link)	Cleans a Wiki name.
void	disableAccessRules()	Disables access rule parsing.
void	enableImageInlining(boolean toggle)	Use this to turn on or off image inlining.
List<org.apache.oro.text.regex.Pattern>	getInlineImagePatterns()
int	getPosition()	Return the current position in the reader stream.
protected final void	initInlineImagePatterns()
boolean	isImageInlining()
boolean	isParseAccessRules()
static org.jdom2.Element	makeError(String error)	Writes HTML for error message.
protected final int	nextToken()	Returns the next token in the stream.
abstract WikiDocument	parse()	Parses the document.
protected void	pushBack(int c)	Push back any character to the current input.
Reader	setInputReader(Reader in)	Replaces the current input character stream with a new one.
static String	wikifyLink(String link)	Cleans away extra legacy characters.

Methods inherited from class java.lang.Object

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

Field Details

PUSHBACK_BUFFER_SIZE

protected static final int PUSHBACK_BUFFER_SIZE

Allow this many characters to be pushed back in the stream. In effect, this limits the size of a single line.

See Also:

• Constant Field Values

m_in

protected PushbackReader m_in

m_engine

protected final Engine m_engine

m_context

protected final Context m_context

m_localLinkMutatorChain

protected final ArrayList<StringTransmutator> m_localLinkMutatorChain

Optionally stores internal wikilinks

m_externalLinkMutatorChain

protected final ArrayList<StringTransmutator> m_externalLinkMutatorChain

m_attachmentLinkMutatorChain

protected final ArrayList<StringTransmutator> m_attachmentLinkMutatorChain

m_linkMutators

protected final ArrayList<StringTransmutator> m_linkMutators

m_headingListenerChain

protected final ArrayList<HeadingListener> m_headingListenerChain

m_inlineImages

protected boolean m_inlineImages

m_parseAccessRules

protected boolean m_parseAccessRules

m_inlineImagePatterns

protected List<org.apache.oro.text.regex.Pattern> m_inlineImagePatterns

Keeps image regexp Patterns

m_linkParsingOperations

protected final LinkParsingOperations m_linkParsingOperations

PROP_ALLOWHTML

public static final String PROP_ALLOWHTML

If set to "true", allows using raw HTML within Wiki text. Be warned, this is a VERY dangerous option to set - never turn this on in a publicly allowable Wiki, unless you are absolutely certain of what you're doing.

See Also:

• Constant Field Values

PROP_RUNPLUGINS

public static final String PROP_RUNPLUGINS

If set to "true", enables plugins during parsing

See Also:

• Constant Field Values

PROP_USEOUTLINKIMAGE

public static final String PROP_USEOUTLINKIMAGE

If true, all outward links (external links) have a small link image appended.

See Also:

• Constant Field Values

PROP_USERELNOFOLLOW

public static final String PROP_USERELNOFOLLOW

If set to "true", all external links are tagged with 'rel="nofollow"'

See Also:

• Constant Field Values

PROP_CAMELCASELINKS

public static final String PROP_CAMELCASELINKS

If true, consider CamelCase hyperlinks as well.

See Also:

• Constant Field Values

PROP_PLAINURIS

public static final String PROP_PLAINURIS

If true, all hyperlinks are translated as well, regardless whether they are surrounded by brackets.

See Also:

• Constant Field Values

PROP_USEATTACHMENTIMAGE

public static final String PROP_USEATTACHMENTIMAGE

If true, all outward attachment info links have a small link image appended.

See Also:

• Constant Field Values

HASHLINK

public static final String HASHLINK

See Also:

• Constant Field Values

OUTLINK_IMAGE

public static final String OUTLINK_IMAGE

Name of the outlink image; relative path to the JSPWiki directory.

See Also:

• Constant Field Values

OUTLINK

public static final String OUTLINK

Outlink css class.

See Also:

• Constant Field Values

CLASS_WIKIPAGE

public static final String CLASS_WIKIPAGE

The value for anchor element class attributes when used for wiki page (normal) links. The value is "wikipage".

See Also:

• Constant Field Values

CLASS_EDITPAGE

public static final String CLASS_EDITPAGE

The value for anchor element class attributes when used for edit page links. The value is "createpage".

See Also:

• Constant Field Values

CLASS_INTERWIKI

public static final String CLASS_INTERWIKI

The value for anchor element class attributes when used for interwiki page links. The value is "interwiki".

See Also:

• Constant Field Values

CLASS_FOOTNOTE

public static final String CLASS_FOOTNOTE

The value for anchor element class attributes when used for footnote links. The value is "footnote".

See Also:

• Constant Field Values

CLASS_FOOTNOTE_REF

public static final String CLASS_FOOTNOTE_REF

The value for anchor element class attributes when used for footnote links. The value is "footnote".

See Also:

• Constant Field Values

CLASS_EXTERNAL

public static final String CLASS_EXTERNAL

The value for anchor element class attributes when used for external links. The value is "external".

See Also:

• Constant Field Values

CLASS_ATTACHMENT

public static final String CLASS_ATTACHMENT

The value for anchor element class attributes when used for attachments. The value is "attachment".

See Also:

• Constant Field Values

CLASS_TYPES

public static final String[] CLASS_TYPES

Constructor Details

MarkupParser

protected MarkupParser(Context context,
 Reader in)

Constructs a MarkupParser. The subclass must call this constructor to set up the necessary bits and pieces.

Parameters:

context - The WikiContext.

in - The reader from which we are reading the bytes from.

Method Details

setInputReader

public Reader setInputReader(Reader in)

Replaces the current input character stream with a new one.

Parameters:

in - New source for input. If null, this method does nothing.

Returns:

the old stream

addLinkTransmutator

public void addLinkTransmutator(StringTransmutator mutator)

Adds a hook for processing link texts. This hook is called when the link text is written into the output stream, and you may use it to modify the text. It does not affect the actual link, only the user-visible text.

Parameters:

mutator - The hook to call. Null is safe.

addLocalLinkHook

public void addLocalLinkHook(StringTransmutator mutator)

Adds a hook for processing local links. The engine transforms both non-existing and existing page links.

Parameters:

mutator - The hook to call. Null is safe.

addExternalLinkHook

public void addExternalLinkHook(StringTransmutator mutator)

Adds a hook for processing external links. This includes all http:// ftp://, etc. links, including inlined images.

Parameters:

mutator - The hook to call. Null is safe.

addAttachmentLinkHook

public void addAttachmentLinkHook(StringTransmutator mutator)

Adds a hook for processing attachment links.

Parameters:

mutator - The hook to call. Null is safe.

addHeadingListener

public void addHeadingListener(HeadingListener listener)

Adds a HeadingListener to the parser chain. It will be called whenever a parsed header is found.

Parameters:

listener - The listener to add.

disableAccessRules

public void disableAccessRules()

Disables access rule parsing.

isParseAccessRules

public boolean isParseAccessRules()

enableImageInlining

public void enableImageInlining(boolean toggle)

Use this to turn on or off image inlining.

Parameters:

toggle - If true, images are inlined (as per set in jspwiki.properties) If false, then images won't be inlined; instead, they will be treated as standard hyperlinks.

Since:

2.2.9

isImageInlining

public boolean isImageInlining()

initInlineImagePatterns

protected final void initInlineImagePatterns()

getInlineImagePatterns

public List<org.apache.oro.text.regex.Pattern> getInlineImagePatterns()

parse

public abstract WikiDocument parse()
                            throws IOException

Parses the document.

Returns:

the parsed document, as a WikiDocument

Throws:

IOException - If something goes wrong.

getPosition

public int getPosition()

Return the current position in the reader stream. The value will be -1 prior to reading.

Returns:

the reader position as an int.

nextToken

protected final int nextToken()
                       throws IOException,
NullPointerException

Returns the next token in the stream. This is the most called method in the entire parser, so it needs to be lean and mean.

Returns:

The next token in the stream; or, if the stream is ended, -1.

Throws:

IOException - If something bad happens

NullPointerException - If you have not yet created an input document.

pushBack

protected void pushBack(int c)
                 throws IOException

Push back any character to the current input. Does not push back a read EOF, though.

Parameters:

c - Character to push back.

Throws:

IOException - In case the character cannot be pushed back.

makeError

public static org.jdom2.Element makeError(String error)

Writes HTML for error message. Does not add it to the document, you have to do it yourself.

Parameters:

error - The error string.

Returns:

An Element containing the error.

cleanLink

public static String cleanLink(String link)

Cleans a Wiki name. The functionality of this method was changed in 2.6 so that the list of allowed characters is much larger. Use wikifyLink(String) to get the legacy behaviour.

[ This is a link ] -> This is a link

Parameters:

link - Link to be cleared. Null is safe, and causes this to return null.

Returns:

A cleaned link.

Since:

2.0

wikifyLink

public static String wikifyLink(String link)

Cleans away extra legacy characters. This method functions exactly like pre-2.6 cleanLink()

[ This is a link ] -> ThisIsALink

Parameters:

link - Link to be cleared. Null is safe, and causes this to return null.

Returns:

A cleaned link.

Since:

2.6