Ipelib
ipe::XmlParser Class Reference

#include <ipexml.h>

Inherited by ipe::ImlParser.

Public Member Functions

 XmlParser (DataSource &source)
virtual ~XmlParser ()
int parsePosition () const
String parseToTag ()
bool parseAttributes (XmlAttributes &attr, bool qm=false)
bool parsePCDATA (String tag, String &pcdata)
bool isTagChar (int ch)
void getChar ()
bool eos ()
void skipWhitespace ()

Protected Member Functions

String parseToTagX ()

Protected Attributes

DataSourceiSource
String iTopElement
int iCh
int iPos

Detailed Description

Base class for XML stream parsing.

This is the base class for Ipe's XML parser. It only provides some utility functions for parsing tags and PCDATA. Derived classes implement the actual parsing using recursive descent parsers—after experimenting with various schemes for XML parsing, this seems to work best for Ipe.

Tag names and attribute names must consist of ASCII letters only. Only entities for '&', '<', and '>' are recognized.

Constructor & Destructor Documentation

◆ XmlParser()

XmlParser::XmlParser ( DataSource & source)

Construct with a data source.

References getChar(), iPos, and iSource.

Referenced by ipe::ImlParser::ImlParser().

◆ ~XmlParser()

XmlParser::~XmlParser ( )
virtual

Virtual destructor, so one can destroy through pointer.

Member Function Documentation

◆ parsePosition()

int ipe::XmlParser::parsePosition ( ) const
inline

References iPos.

◆ parseToTag()

String XmlParser::parseToTag ( )

◆ parseAttributes()

bool XmlParser::parseAttributes ( XmlAttributes & attr,
bool qm = false )

◆ parsePCDATA()

bool XmlParser::parsePCDATA ( String tag,
String & pcdata )

Parse PCDATA.

Checks whether the data is terminated by </tag>, and returns with stream past the >.

References eos(), getChar(), iCh, ipe::String::size(), and skipWhitespace().

Referenced by ipe::ImlParser::parseBitmap(), ipe::ImlParser::parseDocument(), ipe::ImlParser::parseObject(), ipe::ImlParser::parsePage(), and ipe::ImlParser::parseStyle().

◆ isTagChar()

bool ipe::XmlParser::isTagChar ( int ch)
inline

Referenced by parseAttributes(), and parseToTagX().

◆ getChar()

void ipe::XmlParser::getChar ( )
inline

◆ eos()

bool ipe::XmlParser::eos ( )
inline

◆ skipWhitespace()

void XmlParser::skipWhitespace ( )

References eos(), getChar(), and iCh.

Referenced by parseAttributes(), parsePCDATA(), and parseToTagX().

◆ parseToTagX()

String XmlParser::parseToTagX ( )
protected

Parse whitespace and the name of a tag.

If the tag is a closing tag, skips > and returns with stream after that. Otherwise, returns with stream just after the tag name.

Comments and <!TAG .. > are skipped silently.

References eos(), getChar(), iCh, isTagChar(), and skipWhitespace().

Referenced by parseToTag().

Member Data Documentation

◆ iSource

DataSource& ipe::XmlParser::iSource
protected

Referenced by getChar(), and XmlParser().

◆ iTopElement

String ipe::XmlParser::iTopElement
protected

◆ iCh

int ipe::XmlParser::iCh
protected

◆ iPos

int ipe::XmlParser::iPos
protected

Referenced by getChar(), parsePosition(), and XmlParser().


The documentation for this class was generated from the following files: