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// @(#)root/html:$Id: TDocParser.h 26807 2008-12-10 17:47:42Z axel $
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// Author: Axel Naumann 2007-01-09
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/*************************************************************************
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* Copyright (C) 1995-2007, Rene Brun and Fons Rademakers. *
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* All rights reserved. *
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* *
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* For the licensing terms see $ROOTSYS/LICENSE. *
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* For the list of contributors see $ROOTSYS/README/CREDITS. *
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*************************************************************************/
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#ifndef ROOT_TDocParser
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#define ROOT_TDocParser
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////////////////////////////////////////////////////////////////////////////
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// //
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// TDocParser //
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// //
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// Parses documentation in source files //
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// //
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////////////////////////////////////////////////////////////////////////////
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#include <list>
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#include <set>
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#include <map>
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#ifndef ROOT_TObject
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#include "TObject.h"
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#endif
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#ifndef ROOT_TList
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#include "TList.h"
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#endif
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#ifndef ROOT_TString
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#include "TString.h"
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#endif
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#ifndef ROOT_Riosfwd
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#include "Riosfwd.h"
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#endif
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class TBaseClass;
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class TClass;
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class TClassDocOutput;
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class TDocOutput;
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class THtml;
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class TDocParser: public TObject {
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protected:
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enum EDocContext {
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kIgnore,
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kDocFunc,
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kDocClass,
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kNumDocContexts
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};
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public:
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enum ESourceInfo {
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kInfoLastUpdate,
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kInfoAuthor,
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kInfoCopyright,
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kInfoLastChanged,
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kInfoLastGenerated,
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kNumSourceInfos
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};
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enum EAccess {
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kPrivate,
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kProtected,
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kPublic
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};
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enum EParseContext {
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kNoContext,
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kCode,
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kComment,
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kDirective,
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kString,
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kKeyword,
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kCPP,
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kVerbatim,
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kNumParseContexts,
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kParseContextMask = BIT(4) - 1
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};
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enum EParseContextFlag {
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kCXXComment = BIT(4), // kComment is a C++ comment, or macro/html/latex content is surrounded by /* */
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kParseContextFlagMask = ~(BIT(4) - 1)
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};
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class TMethodWrapper: public TObject {
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public:
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virtual const TMethod* GetMethod() const = 0;
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};
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protected:
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THtml* fHtml; // THtml object using us
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TDocOutput* fDocOutput; // TDocOutput invoking us
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UInt_t fLineNo; // current line number
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TString fLineRaw; // current line
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TString fLineStripped; // current line without surrounding spaces
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TString fLineComment; // current line with links and directives for doc
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TString fLineSource; // current line with links
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TString fComment; // current comment
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TString fFirstClassDoc; // first class-doc found - per file, taken if fLastClassDoc is empty
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TString fLastClassDoc; // last class-doc found - becomes class doc at ClassImp or first method
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TClass* fCurrentClass; // current class context of sources being parsed
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TClass* fRecentClass; // recently seen class context of sources being parsed, e.g. for Convert()
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TString fCurrentModule; // current module context of sources being parsed
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TString fCurrentMethodTag;// name_idx of the currently parsed method
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Int_t fDirectiveCount; // index of directive for current method
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TString fCurrentFile; // current source / header file name
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std::map<std::string /*name*/, Int_t > fMethodCounts; // current class's method names
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EDocContext fDocContext; // current context of parsed sources for documenting
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std::list<UInt_t> fParseContext; // current context of parsed sources
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Bool_t fCheckForMethod; // whether to check the current line for a method
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enum {
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kClassDoc_Uninitialized,
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kClassDoc_LookingNothingFound,
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kClassDoc_LookingHaveSomething,
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kClassDoc_Written,
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kClassDoc_Ignore,
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kClassDoc_NumStates
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} fClassDocState; // whether we found the class description
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Bool_t fCommentAtBOL; // at the beginning of the current line, fParseContext contained kComment
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TString fClassDescrTag; // tag for finding the class description
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TString fSourceInfoTags[kNumSourceInfos]; // tags for source info elements (copyright, last changed, author)
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TList fDirectiveHandlers;// handler for doc directives (TDocDirective objects)
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std::set<UInt_t> fExtraLinesWithAnchor; // lines that need an additional anchor
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TString fSourceInfo[kNumSourceInfos];// author, last changed, ...
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TList fMethods[3]; // methods as TMethodWrapper objects (by access)
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TList fDataMembers[6]; // data members (by access, plus enums)
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static std::set<std::string> fgKeywords; // C++ keywords
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void AddClassMethodsRecursively(TBaseClass* bc);
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void AddClassDataMembersRecursively(TBaseClass* bc);
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EParseContext Context() const { return fParseContext.empty() ? kComment : (EParseContext)(fParseContext.back() & kParseContextMask); }
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virtual void ExpandCPPLine(TString& line, Ssiz_t& pos);
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virtual Bool_t HandleDirective(TString& keyword, Ssiz_t& pos,
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TString& word, Ssiz_t& copiedToCommentUpTo);
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virtual void InitKeywords() const;
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virtual TClass* IsDirective(const TString& line, Ssiz_t pos, const TString& word, Bool_t& begin) const;
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TMethod* LocateMethodInCurrentLine(Ssiz_t& posMethodName, TString& ret,
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TString& name, TString& params, std::ostream &srcOut, TString &anchor,
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std::ifstream& sourcefile, Bool_t allowPureVirtual);
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void LocateMethodsInSource(std::ostream& out);
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void LocateMethodsInHeaderInline(std::ostream& out);
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void LocateMethodsInHeaderClassDecl(std::ostream& out);
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void LocateMethods(std::ostream& out, const char* filename,
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Bool_t lookForSourceInfo = kTRUE,
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Bool_t useDocxxStyle = kFALSE,
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Bool_t allowPureVirtual = kFALSE,
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const char* methodPattern = 0,
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const char* sourceExt = 0);
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virtual Bool_t ProcessComment();
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void RemoveCommentContext(Bool_t cxxcomment);
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void WriteClassDoc(std::ostream& out, Bool_t first = kTRUE);
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void WriteMethod(std::ostream& out, TString& ret,
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TString& name, TString& params,
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const char* file, TString& anchor,
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TString& codeOneLiner);
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void WriteSourceLine(std::ostream& out);
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public:
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TDocParser(TClassDocOutput& docOutput, TClass* cl);
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TDocParser(TDocOutput& docOutput);
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virtual ~TDocParser();
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static void AnchorFromLine(const TString& line, TString& anchor);
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void Convert(std::ostream& out, std::istream& in, const char* relpath,
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Bool_t isCode);
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void DecrementMethodCount(const char* name);
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virtual void DecorateKeywords(std::ostream& out, const char* text);
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virtual void DecorateKeywords(TString& text);
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virtual void DeleteDirectiveOutput() const;
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const TList* GetMethods(EAccess access) const { return &fMethods[access]; }
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TClass* GetCurrentClass() const { return fCurrentClass; }
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void GetCurrentModule(TString& out_module) const;
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TDocOutput* GetDocOutput() const { return fDocOutput; }
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const TList* GetDataMembers(EAccess access) const { return &fDataMembers[access]; }
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const TList* GetEnums(EAccess access) const { return &fDataMembers[access+3]; }
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const char* GetSourceInfo(ESourceInfo type) const { return fSourceInfo[type]; }
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void SetCurrentModule(const char* module) { fCurrentModule = module; }
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UInt_t InContext(Int_t context) const;
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static Bool_t IsName(UChar_t c);
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static Bool_t IsWord(UChar_t c);
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virtual void Parse(std::ostream& out);
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static Bool_t Strip(TString& s);
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ClassDef(TDocParser,0); // parser for reference documentation
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};
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#endif // ROOT_TDocParser
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