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Reference Guide
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TSAXParser Class Reference

TSAXParser is a subclass of TXMLParser, it is a wraper class to libxml library.

SAX (Simple API for XML) is an event based interface, which doesn't maintain the DOM tree in memory, in other words, it's much more efficient for large document. TSAXParserCallback contains a number of callback routines to the parser in a xmlSAXHandler structure. The parser will then parse the document and call the appropriate callback when certain conditions occur.

Definition at line 25 of file TSAXParser.h.

Public Member Functions

 TSAXParser ()
 Create SAX parser. More...
 
virtual ~TSAXParser ()
 TSAXParser desctructor. More...
 
virtual void ConnectToHandler (const char *handlerName, void *handler)
 A default TSAXParser to a user-defined Handler connection function. More...
 
virtual void OnCdataBlock (const char *text, Int_t len)
 Emit a signal for OnCdataBlock. More...
 
virtual void OnCharacters (const char *characters)
 Emit a signal for OnCharacters, where characters are the characters outside of tags. More...
 
virtual void OnComment (const char *text)
 Emit a signal for OnComment, where text is the comment. More...
 
virtual void OnEndDocument ()
 Emit a signal for OnEndDocument. More...
 
virtual void OnEndElement (const char *name)
 Emit a signal for OnEndElement, where name is the Element's name. More...
 
virtual Int_t OnError (const char *text)
 Emit a signal for OnError, where text is the error and it returns the Parse Error Code, see TXMLParser. More...
 
virtual Int_t OnFatalError (const char *text)
 Emit a signal for OnFactalError, where text is the error and it returns the Parse Error Code, see TXMLParser. More...
 
virtual void OnStartDocument ()
 Emit a signal for OnStartDocument. More...
 
virtual void OnStartElement (const char *name, const TList *attr)
 Emit a signal for OnStarElement, where name is the Element's name and attribute is a TList of (TObjString*, TObjString *) TPair's. More...
 
virtual void OnWarning (const char *text)
 Emit a signal for OnWarning, where text is the warning. More...
 
virtual Int_t ParseBuffer (const char *contents, Int_t len)
 It parse the contents, instead of a file. More...
 
virtual Int_t ParseFile (const char *filename)
 It creates the parse context of the xml file, where the xml file name is filename. More...
 
- Public Member Functions inherited from TXMLParser
 TXMLParser ()
 Initializes parser variables. More...
 
virtual ~TXMLParser ()
 Cleanup. More...
 
Int_t GetParseCode () const
 
const char * GetParseCodeMessage (Int_t parseCode) const
 Returns the parse code message. More...
 
Bool_t GetReplaceEntities () const
 
Bool_t GetStopOnError () const
 
Bool_t GetValidate () const
 
const char * GetValidateError () const
 
const char * GetValidateWarning () const
 
void SetReplaceEntities (Bool_t val=kTRUE)
 The parser will replace/expand entities. More...
 
void SetStopOnError (Bool_t stop=kTRUE)
 Set parser stops in case of error: More...
 
void SetValidate (Bool_t val=kTRUE)
 The parser will validate the xml file if val = true. More...
 
virtual void StopParser ()
 Stops parsing. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current pad. More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 
- Public Member Functions inherited from TQObject
 TQObject ()
 TQObject Constructor. More...
 
virtual ~TQObject ()
 TQObject Destructor. More...
 
Bool_t AreSignalsBlocked () const
 
Bool_t BlockSignals (Bool_t b)
 
virtual void ChangedBy (const char *method)
 
void CollectClassSignalLists (TList &list, TClass *cls)
 Collect class signal lists from class cls and all its base-classes. More...
 
Bool_t Connect (const char *signal, const char *receiver_class, void *receiver, const char *slot)
 Non-static method is used to connect from the signal of this object to the receiver slot. More...
 
virtual void Connected (const char *)
 
virtual void Destroyed ()
 
Bool_t Disconnect (const char *signal=0, void *receiver=0, const char *slot=0)
 Disconnects signal of this object from slot of receiver. More...
 
virtual void Disconnected (const char *)
 
void Emit (const char *signal)
 Acitvate signal without args. More...
 
void Emit (const char *signal, Long_t *paramArr)
 Emit a signal with a varying number of arguments, paramArr is an array of the parameters. More...
 
void Emit (const char *signal, const char *params)
 Activate signal with parameter text string. More...
 
void Emit (const char *signal, Double_t param)
 Activate signal with single parameter. More...
 
void Emit (const char *signal, Long_t param)
 Activate signal with single parameter. More...
 
void Emit (const char *signal, Long64_t param)
 Activate signal with single parameter. More...
 
void Emit (const char *signal, Bool_t param)
 
void Emit (const char *signal, Char_t param)
 
void Emit (const char *signal, UChar_t param)
 
void Emit (const char *signal, Short_t param)
 
void Emit (const char *signal, UShort_t param)
 
void Emit (const char *signal, Int_t param)
 
void Emit (const char *signal, UInt_t param)
 
void Emit (const char *signal, ULong_t param)
 
void Emit (const char *signal, ULong64_t param)
 
void Emit (const char *signal, Float_t param)
 
template<typename... T>
void EmitVA (const char *signal_name, Int_t, const T &...params)
 
void EmitVA (const char *signal, Int_t nargs, va_list va)=delete
 
TListGetListOfClassSignals () const
 Returns pointer to list of signals of this class. More...
 
TListGetListOfConnections () const
 
TListGetListOfSignals () const
 
virtual Bool_t HasConnection (const char *signal_name) const
 Return true if there is any object connected to this signal. More...
 
virtual void HighPriority (const char *signal_name, const char *slot_name=0)
 
virtual void LowPriority (const char *signal_name, const char *slot_name=0)
 
virtual void Message (const char *msg)
 
virtual Int_t NumberOfConnections () const
 Return number of connections for this object. More...
 
virtual Int_t NumberOfSignals () const
 Return number of signals for this object. More...
 

Private Member Functions

 TSAXParser (const TSAXParser &)
 
TSAXParseroperator= (const TSAXParser &)
 
virtual Int_t Parse ()
 This function parses the xml file, by initializing the parser and checks whether the parse context is created or not, it will check as well whether the document is well formated. More...
 

Private Attributes

_xmlSAXHandler * fSAXHandler
 libxml2 SAX handler More...
 

Friends

class TSAXParserCallback
 

Additional Inherited Members

- Public Types inherited from TObject
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Static Public Member Functions inherited from TQObject
static Bool_t AreAllSignalsBlocked ()
 Returns true if all signals are blocked. More...
 
static Bool_t BlockAllSignals (Bool_t b)
 Block or unblock all signals. Returns the previous block status. More...
 
static Bool_t Connect (TQObject *sender, const char *signal, const char *receiver_class, void *receiver, const char *slot)
 Create connection between sender and receiver. More...
 
static Bool_t Connect (const char *sender_class, const char *signal, const char *receiver_class, void *receiver, const char *slot)
 This method allows to make a connection from any object of the same class to a single slot. More...
 
static Bool_t Disconnect (TQObject *sender, const char *signal=0, void *receiver=0, const char *slot=0)
 Disconnects signal in object sender from slot_method in object receiver. More...
 
static Bool_t Disconnect (const char *class_name, const char *signal, void *receiver=0, const char *slot=0)
 Disconnects "class signal". More...
 
- Protected Member Functions inherited from TXMLParser
virtual void InitializeContext ()
 Initialize parser parameters, such as, disactivate non-standards libxml1 features, on/off validation, clear error and warning messages. More...
 
virtual void OnValidateError (const TString &message)
 This function is called when an error from the parser has occured. More...
 
virtual void OnValidateWarning (const TString &message)
 This function is called when a warning from the parser has occured. More...
 
virtual void ReleaseUnderlying ()
 To release any existing document. More...
 
virtual void SetParseCode (Int_t code)
 Set the parse code: More...
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
 
- Protected Member Functions inherited from TQObject
virtual voidGetSender ()
 
virtual const char * GetSenderClassName () const
 
- Static Protected Member Functions inherited from TQObject
static Int_t CheckConnectArgs (TQObject *sender, TClass *sender_class, const char *signal, TClass *receiver_class, const char *slot)
 Checking of consitency of sender/receiver methods/arguments. More...
 
static TString CompressName (const char *method_name)
 Removes "const" words and blanks from full (with prototype) method name and resolve any typedefs in the method signature. More...
 
static Bool_t ConnectToClass (TQObject *sender, const char *signal, TClass *receiver_class, void *receiver, const char *slot)
 Create connection between sender and receiver. More...
 
static Bool_t ConnectToClass (const char *sender_class, const char *signal, TClass *receiver_class, void *receiver, const char *slot)
 This method allows to make connection from any object of the same class to the receiver object. More...
 
- Protected Attributes inherited from TXMLParser
_xmlParserCtxt * fContext
 Parse the xml file. More...
 
Int_t fParseCode
 To keep track of the errorcodes. More...
 
Bool_t fReplaceEntities
 Replace entities. More...
 
Bool_t fStopError
 Stop when parse error occurs. More...
 
Bool_t fValidate
 To validate the parse context. More...
 
TString fValidateError
 Parse error. More...
 
TString fValidateWarning
 Parse warning. More...
 
- Protected Attributes inherited from TQObject
TListfListOfConnections
 list of signals from this object More...
 
TListfListOfSignals
 
Bool_t fSignalsBlocked
 list of connections to this object More...
 
- Static Protected Attributes inherited from TQObject
static Bool_t fgAllSignalsBlocked = kFALSE
 flag used for suppression of signals More...
 

#include <TSAXParser.h>

Inheritance diagram for TSAXParser:
[legend]

Constructor & Destructor Documentation

TSAXParser::TSAXParser ( const TSAXParser )
private
TSAXParser::TSAXParser ( )

Create SAX parser.

Definition at line 67 of file TSAXParser.cxx.

TSAXParser::~TSAXParser ( )
virtual

TSAXParser desctructor.

Definition at line 97 of file TSAXParser.cxx.

Member Function Documentation

void TSAXParser::ConnectToHandler ( const char *  handlerName,
void handler 
)
virtual

A default TSAXParser to a user-defined Handler connection function.

This function makes connection between various function from TSAXParser with the user-define SAX Handler, whose functions has to be exactly the same as in TSAXParser.

Parameters
[in]handlerName User-defined SAX Handler class name
[in]handlerPointer to the user-defined SAX Handler

See SAXHandler.C tutorial.

Definition at line 441 of file TSAXParser.cxx.

void TSAXParser::OnCdataBlock ( const char *  text,
Int_t  len 
)
virtual

Emit a signal for OnCdataBlock.

Definition at line 191 of file TSAXParser.cxx.

void TSAXParser::OnCharacters ( const char *  characters)
virtual

Emit a signal for OnCharacters, where characters are the characters outside of tags.

Definition at line 147 of file TSAXParser.cxx.

void TSAXParser::OnComment ( const char *  text)
virtual

Emit a signal for OnComment, where text is the comment.

Definition at line 155 of file TSAXParser.cxx.

void TSAXParser::OnEndDocument ( )
virtual

Emit a signal for OnEndDocument.

Definition at line 115 of file TSAXParser.cxx.

void TSAXParser::OnEndElement ( const char *  name)
virtual

Emit a signal for OnEndElement, where name is the Element's name.

Definition at line 138 of file TSAXParser.cxx.

Int_t TSAXParser::OnError ( const char *  text)
virtual

Emit a signal for OnError, where text is the error and it returns the Parse Error Code, see TXMLParser.

Definition at line 172 of file TSAXParser.cxx.

Int_t TSAXParser::OnFatalError ( const char *  text)
virtual

Emit a signal for OnFactalError, where text is the error and it returns the Parse Error Code, see TXMLParser.

Definition at line 182 of file TSAXParser.cxx.

void TSAXParser::OnStartDocument ( )
virtual

Emit a signal for OnStartDocument.

Definition at line 107 of file TSAXParser.cxx.

void TSAXParser::OnStartElement ( const char *  name,
const TList attributes 
)
virtual

Emit a signal for OnStarElement, where name is the Element's name and attribute is a TList of (TObjString*, TObjString *) TPair's.

The TPair's key is the attribute's name and value is the attribute's value.

Definition at line 126 of file TSAXParser.cxx.

void TSAXParser::OnWarning ( const char *  text)
virtual

Emit a signal for OnWarning, where text is the warning.

Definition at line 163 of file TSAXParser.cxx.

TSAXParser& TSAXParser::operator= ( const TSAXParser )
private
Int_t TSAXParser::Parse ( )
privatevirtual

This function parses the xml file, by initializing the parser and checks whether the parse context is created or not, it will check as well whether the document is well formated.

It returns the parse error code, see TXMLParser.

Definition at line 206 of file TSAXParser.cxx.

Int_t TSAXParser::ParseBuffer ( const char *  contents,
Int_t  len 
)
virtual

It parse the contents, instead of a file.

It will return error if is attempted to parse a second file while a parse is in progres. It returns parse code error, see TXMLParser.

Implements TXMLParser.

Definition at line 253 of file TSAXParser.cxx.

Int_t TSAXParser::ParseFile ( const char *  filename)
virtual

It creates the parse context of the xml file, where the xml file name is filename.

If context is created sucessfully, it will call Parse() It returns parse error code, see TXMLParser.

Implements TXMLParser.

Definition at line 236 of file TSAXParser.cxx.

Friends And Related Function Documentation

friend class TSAXParserCallback
friend

Definition at line 27 of file TSAXParser.h.

Member Data Documentation

_xmlSAXHandler* TSAXParser::fSAXHandler
private

libxml2 SAX handler

Definition at line 30 of file TSAXParser.h.


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