TPRegexp

class TPRegexp

    private:

        void Compile()
        void Optimize()
      UInt_t ParseMods(const TString& mods) const
       Int_t ReplaceSubs(const TString& s, TString& final, const TString& replacePattern, Int_t* ovec, Int_t nmatch) const

    public:

                      TPRegexp()
                      TPRegexp(const TString& pat)
                      TPRegexp(const TPRegexp& p)
              virtual ~TPRegexp()
       static TClass* Class()
      virtual TClass* IsA() const
                Int_t Match(const TString& s, const TString& mods = , Int_t offset = 0, Int_t nMatchMax = 30, TArrayI* pos = 0)
               Bool_t MatchB(const TString& s, const TString& mods = , Int_t offset = 0, Int_t nMaxMatch = 30)
           TObjArray* MatchS(const TString& s, const TString& mods = , Int_t offset = 0, Int_t nMaxMatch = 30)
            TPRegexp& operator=(const TPRegexp& p)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)
                Int_t Substitute(TString& s, const TString& replace, const TString& mods = , Int_t offset = 0, Int_t nMatchMax = 30)

Data Members

    private:

          TString fPattern   
      PCREPriv_t* fPriv      
           UInt_t fPCREOpts  

    public:

      static const enum TPRegexp:: kPCRE_GLOBAL      
      static const enum TPRegexp:: kPCRE_OPTIMIZE    
      static const enum TPRegexp:: kPCRE_DEBUG_MSGS  
      static const enum TPRegexp:: kPCRE_INTMASK     

Class Description

                                                                      
 TPRegexp                                                             
                                                                      
 C++ Wrapper for the "Perl Compatible Regular Expressions" library    
  The PCRE lib can be found at:                                       
              http://www.pcre.org/                                    
                                                                      
 Extensive documentation about Regular expressions in Perl can be     
 found at :                                                           
              http://perldoc.perl.org/perlre.html                     
                                                                      

 Default ctor.

 Create and initialize with pat.

 Copy ctor.

 Cleanup.

 Translate Perl modifier flags into pcre flags.

 Compile the fPattern.

 Send the pattern through the optimizer.

 Return the number of substitutions.

 The number of matches is returned, this equals the full match +
 sub-pattern matches.
 nMaxmatch is the maximum allowed number of matches.
 pos contains the string indices of the matches. Its usage is
 shown in the routine MatchS.

 Returns a TObjArray of matched substrings as TObjString's.
 The TObjArray is owner of the objects. The first entry is the full
 matched pattern, followed by the subpatterns.
 If a pattern was not matched, it will return an empty substring:

 TObjArray *subStrL = TPRegexp("(a|(z))(bc)").MatchS("abc");
 for (Int_t i = 0; i < subStrL->GetLast()+1; i++) {
    const TString subStr = ((TObjString *)subStrL->At(i))->GetString();
    cout << "\"" << subStr << "\" ";
 }
 cout << subStr << endl;

 produces:  "abc" "a" "" "bc"

 Substitute replaces the string s by a new string in which matching
 patterns are replaced by the replacePattern string. The number of
 substitutions are returned.

 TString s("aap noot mies");
 const Int_t nrSub = TPRegexp("(\\w*) noot (\\w*)").Substitute(s,"$2 noot $1");
 cout << nrSub << " \"" << s << "\"" <<endl;

 produces: 2 "mies noot aap"

Inline Functions

             Bool_t MatchB(const TString& s, const TString& mods = , Int_t offset = 0, Int_t nMaxMatch = 30)
          TPRegexp& operator=(const TPRegexp& p)
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)