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 // Created on: 1992-02-11
 // Created by: Christian CAILLET
 // Copyright (c) 1992-1999 Matra Datavision
 // Copyright (c) 1999-2014 OPEN CASCADE SAS
 //
 // This file is part of Open CASCADE Technology software library.
 //
 // This library is free software; you can redistribute it and/or modify it under
 // the terms of the GNU Lesser General Public License version 2.1 as published
 // by the Free Software Foundation, with special exception defined in the file
 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
 // distribution for complete text of the license and disclaimer of any warranty.
 //
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
 #ifndef _StepData_StepReaderData_HeaderFile
 #define _StepData_StepReaderData_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_Type.hxx>
 #include <Resource_FormatType.hxx>
 
 #include <Interface_IndexedMapOfAsciiString.hxx>
 #include <TColStd_DataMapOfIntegerInteger.hxx>
 #include <Standard_Integer.hxx>
 #include <Interface_FileReaderData.hxx>
 #include <Standard_CString.hxx>
 #include <Interface_ParamType.hxx>
 #include <TColStd_SequenceOfAsciiString.hxx>
 #include <StepData_Logical.hxx>
 class Interface_Check;
 class TCollection_AsciiString;
 class StepData_PDescr;
 class Standard_Transient;
 class StepData_SelectMember;
 class StepData_Field;
 class StepData_ESDescr;
 class StepData_FieldList;
 class StepData_SelectType;
 class TCollection_HAsciiString;
 class StepData_EnumTool;
 
 
 class StepData_StepReaderData;
 DEFINE_STANDARD_HANDLE(StepData_StepReaderData, Interface_FileReaderData)
 
 //! Specific FileReaderData for Step
 //! Contains literal description of entities (for each one : type
 //! as a string, ident, parameter list)
 //! provides references evaluation, plus access to literal data
 //! and specific access methods (Boolean, XY, XYZ)
 class StepData_StepReaderData : public Interface_FileReaderData
 {
 
 public:
 
   
   //! creates StepReaderData correctly dimensionned (necessary at
   //! creation time, because it contains arrays)
   //! nbheader is nb of records for Header, nbtotal for Header+Data
   //! and nbpar gives the total count of parameters
   Standard_EXPORT StepData_StepReaderData(const Standard_Integer nbheader, const Standard_Integer nbtotal, const Standard_Integer nbpar, const Resource_FormatType theSourceCodePage = Resource_FormatType_UTF8);
   
   //! Fills the fields of a record
   Standard_EXPORT void SetRecord (const Standard_Integer num, const Standard_CString ident, const Standard_CString type, const Standard_Integer nbpar);
   
   //! Fills the fields of a parameter of a record. This is a variant
   //! of AddParam, Adapted to STEP (optimized for specific values)
   Standard_EXPORT void AddStepParam (const Standard_Integer num, const Standard_CString aval, const Interface_ParamType atype, const Standard_Integer nument = 0);
   
   //! Returns Record Type
   Standard_EXPORT const TCollection_AsciiString& RecordType (const Standard_Integer num) const;
   
   //! Returns Record Type as a CString
   //! was C++ : return const
   Standard_EXPORT Standard_CString CType (const Standard_Integer num) const;
   
   //! Returns record identifier (Positive number)
   //! If returned ident is not positive : Sub-List or Scope mark
   Standard_EXPORT Standard_Integer RecordIdent (const Standard_Integer num) const;
   
   //! Returns SubList numero designated by a parameter (nump) in a
   //! record (num), or zero if the parameter does not exist or is
   //! not a SubList address. Zero too If aslast is True and nump
   //! is not for the last parameter
   Standard_EXPORT Standard_Integer SubListNumber (const Standard_Integer num, const Standard_Integer nump, const Standard_Boolean aslast) const;
   
   //! Returns True if <num> corresponds to a Complex Type Entity
   //! (as can be defined by ANDOR Express clause)
   Standard_EXPORT Standard_Boolean IsComplex (const Standard_Integer num) const;
   
   //! Returns the List of Types which correspond to a Complex Type
   //! Entity. If not Complex, there is just one Type in it
   //! For a SubList or a Scope mark, <types> remains empty
   Standard_EXPORT void ComplexType (const Standard_Integer num, TColStd_SequenceOfAsciiString& types) const;
   
   //! Returns the Next "Component" for a Complex Type Entity, of
   //! which <num> is already a Component (the first one or a next one)
   //! Returns 0 for a Simple Type or for the last Component
   Standard_EXPORT Standard_Integer NextForComplex (const Standard_Integer num) const;
   
   //! Determines the first component which brings a given name, for
   //! a Complex Type Entity
   //! <num0> is the very first record of this entity
   //! <num> is given the last NextNamedForComplex, starts at zero
   //! it is returned as the newly found number
   //! Hence, in the normal case, NextNamedForComplex starts by num0
   //! if <num> is zero, else by NextForComplex(num)
   //! If the alphabetic order is not respected, it restarts from
   //! num0 and loops on NextForComplex until finding <name>
   //! In case of "non-alphabetic order", <ach> is filled with a
   //! Warning for this name
   //! In case of "not-found at all", <ach> is filled with a Fail,
   //! and <num> is returned as zero
   //!
   //! Returns True if alphabetic order, False else
   Standard_EXPORT Standard_Boolean NamedForComplex (const Standard_CString name, const Standard_Integer num0, Standard_Integer& num, Handle(Interface_Check)& ach) const;
   
   //! Determines the first component which brings a given name, or
   //! short name for a Complex Type Entity
   //! <num0> is the very first record of this entity
   //! <num> is given the last NextNamedForComplex, starts at zero
   //! it is returned as the newly found number
   //! Hence, in the normal case, NextNamedForComplex starts by num0
   //! if <num> is zero, else by NextForComplex(num)
   //! If the alphabetic order is not respected, it restarts from
   //! num0 and loops on NextForComplex until finding <name>
   //! In case of "non-alphabetic order", <ach> is filled with a
   //! Warning for this name
   //! In case of "not-found at all", <ach> is filled with a Fail,
   //! and <num> is returned as zero
   //!
   //! Returns True if alphabetic order, False else
   Standard_EXPORT Standard_Boolean NamedForComplex (const Standard_CString theName, const Standard_CString theShortName, const Standard_Integer num0, Standard_Integer& num, Handle(Interface_Check)& ach) const;
 
   //! Checks Count of Parameters of record <num> to equate <nbreq>
   //! If this Check is successful, returns True
   //! Else, fills <ach> with an Error Message then returns False
   //! <mess> is included in the Error message if given non empty
   Standard_EXPORT Standard_Boolean CheckNbParams (const Standard_Integer num, const Standard_Integer nbreq, Handle(Interface_Check)& ach, const Standard_CString mess = "") const;
   
   //! reads parameter <nump> of record <num> as a sub-list (may be
   //! typed, see ReadTypedParameter in this case)
   //! Returns True if OK. Else (not a LIST), returns false and
   //! feeds Check with appropriate check
   //! If <optional> is True and Param is not defined, returns True
   //! with <ach> not filled and <numsub> returned as 0
   //! Works with SubListNumber with <aslast> false (no specific case
   //! for last parameter)
   Standard_EXPORT Standard_Boolean ReadSubList (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Standard_Integer& numsub, const Standard_Boolean optional = Standard_False, const Standard_Integer lenmin = 0, const Standard_Integer lenmax = 0) const;
   
   //! reads the content of a sub-list into a transient :
   //! SelectNamed, or HArray1 of Integer,Real,String,Transient ...
   //! recursive call if list of list ...
   //! If a sub-list has mixed types, an HArray1OfTransient is
   //! produced, it may contain SelectMember
   //! Intended to be called by ReadField
   //! The returned status is : negative if failed, 0 if empty.
   //! Else the kind to be recorded in the field
   Standard_EXPORT Standard_Integer ReadSub (const Standard_Integer numsub, const Standard_CString mess, Handle(Interface_Check)& ach, const Handle(StepData_PDescr)& descr, Handle(Standard_Transient)& val) const;
   
   //! Reads parameter <nump> of record <num> into a SelectMember,
   //! self-sufficient (no Description needed)
   //! If <val> is already created, it will be filled, as possible
   //! And if reading does not match its own description, the result
   //! will be False
   //! If <val> is not it not yet created, it will be (SelectNamed)
   //! useful if a field is defined as a SelectMember, directly
   //! (SELECT with no Entity as member)
   //! But SelectType also manages SelectMember (for SELECT with
   //! some members as Entity, some other not)
   Standard_EXPORT Standard_Boolean ReadMember (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Handle(StepData_SelectMember)& val) const;
   
   //! Safe variant for arbitrary type of argument
   template <class T> 
   Standard_Boolean ReadMember (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Handle(T)& val) const
   {
     Handle(StepData_SelectMember) aVal = val;
     return ReadMember (num, nump, mess, ach, aVal) && ! (val = Handle(T)::DownCast(aVal)).IsNull();
   }
 
   //! reads parameter <nump> of record <num> into a Field,
   //! controlled by a Parameter Descriptor (PDescr), which controls
   //! its allowed type(s) and value
   //! <ach> is filled if the read parameter does not match its
   //! description (but the field is read anyway)
   //! If the description is not defined, no control is done
   //! Returns True when done
   Standard_EXPORT Standard_Boolean ReadField (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, const Handle(StepData_PDescr)& descr, StepData_Field& fild) const;
   
   //! reads a list of fields controlled by an ESDescr
   Standard_EXPORT Standard_Boolean ReadList (const Standard_Integer num, Handle(Interface_Check)& ach, const Handle(StepData_ESDescr)& descr, StepData_FieldList& list) const;
   
   //! Reads parameter <nump> of record <num> into a Transient Value
   //! according to the type of the parameter :
   //! Named for Integer,Boolean,Logical,Enum,Real : SelectNamed
   //! Immediate Integer,Boolean,Logical,Enum,Real : SelectInt/Real
   //! Text  : HAsciiString
   //! Ident : the referenced Entity
   //! Sub-List not processed, see ReadSub
   //! This value is controlled by a Parameter Descriptor (PDescr),
   //! which controls its allowed type and value
   //! <ach> is filled if the read parameter does not match its
   //! description (the select is nevertheless created if possible)
   //!
   //! Warning : val is in out, hence it is possible to predefine a specific
   //! SelectMember then to fill it. If <val> is Null or if the
   //! result is not a SelectMember, val itself is returned a new ref
   //! For a Select with a Name, <val> must then be a SelectNamed
   Standard_EXPORT Standard_Boolean ReadAny (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, const Handle(StepData_PDescr)& descr, Handle(Standard_Transient)& val) const;
   
   //! reads parameter <nump> of record <num> as a sub-list of
   //! two Reals X,Y. Returns True if OK. Else, returns false and
   //! feeds Check with appropriate Fails (parameter not a sub-list,
   //! not two Reals in the sub-list) composed with "mess" which
   //! gives the name of the parameter
   Standard_EXPORT Standard_Boolean ReadXY (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Standard_Real& X, Standard_Real& Y) const;
   
   //! reads parameter <nump> of record <num> as a sub-list of
   //! three Reals X,Y,Z. Return value and Check managed as by
   //! ReadXY (demands a sub-list of three Reals)
   Standard_EXPORT Standard_Boolean ReadXYZ (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const;
   
   //! reads parameter <nump> of record <num> as a single Real value.
   //! Return value and Check managed as by ReadXY (demands a Real)
   Standard_EXPORT Standard_Boolean ReadReal (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Standard_Real& val) const;
   
   //! Reads parameter <nump> of record <num> as a single Entity.
   //! Return value and Check managed as by ReadReal (demands a
   //! reference to an Entity). In Addition, demands read Entity
   //! to be Kind of a required Type <atype>.
   //! Remark that returned status is False and <ent> is Null if
   //! parameter is not an Entity, <ent> remains Not Null is parameter
   //! is an Entity but is not Kind of required type
   Standard_EXPORT Standard_Boolean ReadEntity (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, const Handle(Standard_Type)& atype, Handle(Standard_Transient)& ent) const;
   
   //! Safe variant for arbitrary type of argument
   template <class T> 
   Standard_Boolean ReadEntity (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, const Handle(Standard_Type)& atype, Handle(T)& ent) const
   {
     Handle(Standard_Transient) anEnt = ent;
     return ReadEntity (num, nump, mess, ach, atype, anEnt) && ! (ent = Handle(T)::DownCast(anEnt)).IsNull();
   }
 
   //! Same as above, but a SelectType checks Type Matching, and
   //! records the read Entity (see method Value from SelectType)
   Standard_EXPORT Standard_Boolean ReadEntity (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, StepData_SelectType& sel) const;
   
   //! reads parameter <nump> of record <num> as a single Integer.
   //! Return value & Check managed as by ReadXY (demands an Integer)
   Standard_EXPORT Standard_Boolean ReadInteger (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Standard_Integer& val) const;
   
   //! reads parameter <nump> of record <num> as a Boolean
   //! Return value and Check managed as by ReadReal (demands a
   //! Boolean enum, i.e. text ".T." for True or ".F." for False)
   Standard_EXPORT Standard_Boolean ReadBoolean (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Standard_Boolean& flag) const;
   
   //! reads parameter <nump> of record <num> as a Logical
   //! Return value and Check managed as by ReadBoolean (demands a
   //! Logical enum, i.e. text ".T.", ".F.", or ".U.")
   Standard_EXPORT Standard_Boolean ReadLogical (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, StepData_Logical& flag) const;
   
   //! reads parameter <nump> of record <num> as a String (text
   //! between quotes, quotes are removed by the Read operation)
   //! Return value and Check managed as by ReadXY (demands a String)
   Standard_EXPORT Standard_Boolean ReadString (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Handle(TCollection_HAsciiString)& val) const;
   
   Standard_EXPORT Standard_Boolean ReadEnumParam (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, Standard_CString& text) const;
   
   //! Fills a check with a fail message if enumeration value does
   //! match parameter definition
   //! Just a help to centralize message definitions
   Standard_EXPORT void FailEnumValue (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach) const;
   
   //! Reads parameter <nump> of record <num> as an Enumeration (text
   //! between dots) and converts it to an integer value, by an
   //! EnumTool. Returns True if OK, false if : this parameter is not
   //! enumeration, or is not recognized by the EnumTool (with fail)
   Standard_EXPORT Standard_Boolean ReadEnum (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, const StepData_EnumTool& enumtool, Standard_Integer& val) const;
   
   //! Resolves a parameter which can be enclosed in a type def., as
   //! TYPE(val). The parameter must then be read normally according
   //! its type.  Parameter to be resolved is <nump> of record <num>
   //! <mustbetyped> True  demands a typed parameter
   //! <mustbetyped> False accepts a non-typed parameter as option
   //! mess and ach as usual
   //! <numr>,<numrp> are the resolved record and parameter numbers
   //! = num,nump if no type,  else numrp=1
   //! <typ> returns the recorded type, or empty string
   //! Remark : a non-typed list is considered as "non-typed"
   Standard_EXPORT Standard_Boolean ReadTypedParam (const Standard_Integer num, const Standard_Integer nump, const Standard_Boolean mustbetyped, const Standard_CString mess, Handle(Interface_Check)& ach, Standard_Integer& numr, Standard_Integer& numrp, TCollection_AsciiString& typ) const;
   
   //! Checks if parameter <nump> of record <num> is given as Derived
   //! If this Check is successful (i.e. Param = "*"), returns True
   //! Else, fills <ach> with a Message which contains <mess> and
   //! returns False. According to <errstat>, this message is Warning
   //! if errstat is False (Default), Fail if errstat is True
   Standard_EXPORT Standard_Boolean CheckDerived (const Standard_Integer num, const Standard_Integer nump, const Standard_CString mess, Handle(Interface_Check)& ach, const Standard_Boolean errstat = Standard_False) const;
   
   //! Returns total count of Entities (including Header)
   Standard_EXPORT virtual Standard_Integer NbEntities() const Standard_OVERRIDE;
   
   //! determines the first suitable record following a given one
   //! that is, skips SCOPE,ENDSCOPE and SUBLIST records
   //! Note : skips Header records, which are accessed separately
   Standard_EXPORT Standard_Integer FindNextRecord (const Standard_Integer num) const Standard_OVERRIDE;
   
   //! determines reference numbers in EntityNumber fields
   //! called by Prepare from StepReaderTool to prepare later using
   //! by a StepModel. This method is attached to StepReaderData
   //! because it needs a massive amount of data accesses to work
   //!
   //! If <withmap> is given False, the basic exploration algorithm
   //! is activated, otherwise a map is used as far as it is possible
   //! this option can be used only to test this algorithm
   Standard_EXPORT void SetEntityNumbers (const Standard_Boolean withmap = Standard_True);
   
   //! determine first suitable record of Header
   //! works as FindNextRecord, but treats only Header records
   Standard_EXPORT Standard_Integer FindNextHeaderRecord (const Standard_Integer num) const;
   
   //! Works as SetEntityNumbers but for Header : more simple because
   //! there are no Reference, only Sub-Lists
   Standard_EXPORT void PrepareHeader();
   
   //! Returns the Global Check. It can record Fail messages about
   //! Undefined References (detected by SetEntityNumbers)
   Standard_EXPORT const Handle(Interface_Check) GlobalCheck() const;
 
 
 
 
   DEFINE_STANDARD_RTTIEXT(StepData_StepReaderData,Interface_FileReaderData)
 
 protected:
 
 
 
 
 private:
 
   
   //! Searches for a Parameter of the record <num>, which refers to
   //! the Ident <id> (form #nnn). [Used by SetEntityNumbers]
   //! If found, returns its EntityNumber, else returns Zero.
   Standard_EXPORT Standard_Integer FindEntityNumber (const Standard_Integer num, const Standard_Integer id) const;
 
   //! Prepare string to use in OCCT exchange structure.
   //! If code page is Resource_FormatType_NoConversion,
   //! clean only special characters without conversion;
   //! else convert a string to UTF8 using the code page
   //! and handle the control directives.
   Standard_EXPORT void cleanText(const Handle(TCollection_HAsciiString)& theVal) const;
 
 private:
 
 
   TColStd_Array1OfInteger theidents;
   TColStd_Array1OfInteger thetypes;
   Interface_IndexedMapOfAsciiString thenametypes;
   TColStd_DataMapOfIntegerInteger themults;
   Standard_Integer thenbents;
   Standard_Integer thelastn;
   Standard_Integer thenbhead;
   Standard_Integer thenbscop;
   Handle(Interface_Check) thecheck;
   Resource_FormatType mySourceCodePage;
 
 
 };
 
 
 
 
 
 
 
 #endif // _StepData_StepReaderData_HeaderFile

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