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 //
 // ********************************************************************
 // * License and Disclaimer                                           *
 // *                                                                  *
 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
 // * conditions of the Geant4 Software License,  included in the file *
 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
 // * include a list of copyright holders.                             *
 // *                                                                  *
 // * Neither the authors of this software system, nor their employing *
 // * institutes,nor the agencies providing financial support for this *
 // * work  make  any representation or  warranty, express or implied, *
 // * regarding  this  software system or assume any liability for its *
 // * use.  Please see the license in the file  LICENSE  and URL above *
 // * for the full disclaimer and the limitation of liability.         *
 // *                                                                  *
 // * This  code  implementation is the result of  the  scientific and *
 // * technical work of the GEANT4 collaboration.                      *
 // * By using,  copying,  modifying or  distributing the software (or *
 // * any work based  on the software)  you  agree  to acknowledge its *
 // * use  in  resulting  scientific  publications,  and indicate your *
 // * acceptance of all terms of the Geant4 Software license.          *
 // ********************************************************************
 //
 // G4String inline methods implementation
 //
 // Author: G.Cosmo, 11 November 1999
 //---------------------------------------------------------------------
 
 inline G4String::G4String(const std::string& str)
   : std::string(str)
 {}
 
 inline G4String::G4String(const G4String& str) = default;
 
 inline G4String::G4String(std::string&& str)
   : std::string(std::move(str))
 {}
 
 inline G4String::G4String(G4String&& str)
   : std::string(std::move(str))
 {}
 
 inline G4String& G4String::operator=(const G4String& str)
 {
   if(&str == this)
   {
     return *this;
   }
   std::string::operator=(str);
   return *this;
 }
 
 inline G4String& G4String::operator=(G4String&& str)
 {
   std::string::operator=(std::move(str));
   return *this;
 }
 
 inline G4String::operator const char*() const { return c_str(); }
 
 inline G4String::reference G4String::operator[](int pos)
 {
   return std::string::operator[](pos);
 }
 
 inline G4String::const_reference G4String::operator[](int pos) const
 {
     return std::string::operator[](pos);
 }
 
 inline G4int G4String::compareTo(std::string_view str, caseCompare mode) const
 {
   if(mode == exact)
   {
     return compare(str);
   }
 
   return G4StrUtil::icompare(*this, str);
 }
 
 inline std::istream& G4String::readLine(std::istream& strm, G4bool skipWhite)
 {
   return G4StrUtil::readline(strm, *this, skipWhite);
 }
 
 inline G4String& G4String::remove(size_type n)
 {
   G4StrUtil::safe_erase(*this, n);
   return *this;
 }
 
 inline G4bool G4String::contains(const std::string& str) const
 {
   // Use of const char* required to resolve ambiguity with std::string_view
   return G4StrUtil::contains(*this, str.c_str());
 }
 
 inline G4bool G4String::contains(char ch) const
 {
   return G4StrUtil::contains(*this, ch);
 }
 
 inline G4String G4String::strip(G4String::stripType strip_Type, char ch)
 {
   if(empty())
   {
     return "";
   }
 
   G4String retVal = *this;
 
   switch(strip_Type)
   {
     case G4String::leading:
       G4StrUtil::lstrip(retVal, ch);
       break;
     case G4String::trailing:
       G4StrUtil::rstrip(retVal, ch);
       break;
     case G4String::both:
       G4StrUtil::strip(retVal, ch);
       break;
     default:
       break;
   }
 
   return retVal;
 }
 
 inline void G4String::toLower() { G4StrUtil::to_lower(*this); }
 
 inline void G4String::toUpper() { G4StrUtil::to_upper(*this); }
 
 namespace G4StrUtil
 {
   inline void to_lower(G4String& str)
   {
     std::transform(str.begin(), str.end(), str.begin(),
                    [](unsigned char ch) { return std::tolower(ch); });
   }
 
   inline G4String to_lower_copy(G4String str)
   {
     to_lower(str);
     return str;
   }
 
   inline void to_upper(G4String& str)
   {
     std::transform(str.begin(), str.end(), str.begin(),
                    [](unsigned char ch) { return std::toupper(ch); });
   }
 
   inline G4String to_upper_copy(G4String str)
   {
     to_upper(str);
     return str;
   }
 
   inline void lstrip(G4String& str, char ch)
   {
     auto startIndex = str.find_first_not_of(ch);
     str.erase(0, startIndex);
   }
 
   inline void rstrip(G4String& str, char ch)
   {
     auto endIndex = str.find_last_not_of(ch);
     if(endIndex == G4String::npos)
     {
       str = "";
     }
     else
     {
       str.erase(endIndex + 1);
     }
   }
 
   inline void strip(G4String& str, char ch)
   {
     if(str.empty())
     {
       return;
     }
 
     lstrip(str, ch);
     rstrip(str, ch);
   }
 
   inline G4String lstrip_copy(G4String str, char ch)
   {
     lstrip(str, ch);
     return str;
   }
 
   inline G4String rstrip_copy(G4String str, char ch)
   {
     rstrip(str, ch);
     return str;
   }
 
   inline G4String strip_copy(G4String str, char ch)
   {
     strip(str, ch);
     return str;
   }
 
   inline G4bool contains(const G4String& str, std::string_view ss)
   {
     return str.find(ss) != G4String::npos;
   }
 
   inline G4bool contains(const G4String& str, char ss)
   {
     return str.find(ss) != G4String::npos;
   }
 
   inline G4bool contains(const G4String& str, const char* ss)
   {
     return str.find(ss) != G4String::npos;
   }
 
   inline G4bool contains(const G4String& str, const G4String& ss)
   {
     return str.find(ss) != G4String::npos;
   }
 
   inline G4int icompare(std::string_view lhs, std::string_view rhs)
   {
     G4String buf1 = G4StrUtil::to_lower_copy(G4String(lhs.data(), lhs.size()));
     G4String buf2 = G4StrUtil::to_lower_copy(G4String(rhs.data(), rhs.size()));
     return buf1.compare(buf2);
   }
 
   inline bool starts_with(const G4String& str, std::string_view ss)
   {
     return str.rfind(ss, 0) == 0;
   }
 
   inline bool starts_with(const G4String& str, G4String::value_type ss)
   {
     return !str.empty() && (str[0] == ss);
   }
 
   inline bool starts_with(const G4String& str, const char* ss)
   {
     return str.rfind(ss, 0) == 0;
   }
 
   inline bool starts_with(const G4String& str, const G4String& ss)
   {
     return str.rfind(ss, 0) == 0;
   }
 
   inline bool ends_with(const G4String& str, std::string_view ss)
   {
     if(str.length() < ss.length())
     {
       return false;
     }
     return str.compare(str.length() - ss.length(), ss.length(), ss) == 0;
   }
 
   inline bool ends_with(const G4String& str, G4String::value_type ss)
   {
     return !str.empty() && (str.back() == ss);
   }
 
   inline bool ends_with(const G4String& str, const char* ss)
   {
     std::string_view sv(ss);
     return ends_with(str, sv);
   }
 
   inline bool ends_with(const G4String& str, const G4String& ss)
   {
     return ends_with(str, ss.c_str());
   }
 
   inline void safe_erase(G4String& str, G4String::size_type index,
                          G4String::size_type count)
   {
     if(index < str.size())
     {
       str.erase(index, count);
     }
   }
 
   inline std::istream& readline(std::istream& is, G4String& str,
                                 G4bool skipWhite)
   {
     char tmp[1024];
     if(skipWhite)
     {
       is >> std::ws;
     }
 
     is.getline(tmp, 1024);
     str = tmp;
 
     return is;
   }
 }  // namespace G4StrUtil

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