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STR_String.h

/**
 * $Id: STR_String.h,v 1.6 2004/03/06 17:04:52 sirdude Exp $
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */

/**

 * $Id: STR_String.h,v 1.6 2004/03/06 17:04:52 sirdude Exp $
 * Copyright (C) 2001 NaN Technologies B.V.
 * This file was formerly known as: GEN_StdString.h.
 * @date    April, 25, 2001
 */

#ifndef _STR_String_H_
#define _STR_String_H_

#ifndef STR_NO_ASSERTD
#undef  assertd
#define     assertd(exp)                  ((void)NULL)
#endif

#include <vector>
#include <limits.h>
using namespace std;


class STR_String;

typedef  unsigned long dword;
typedef const STR_String& rcSTR_String;
typedef unsigned char byte;

/**
 *    Smart String Value class. Is used by parser when an expression tree is build containing string.
*/

00063 class STR_String
{
public:
      // Initialization
      STR_String();
      STR_String(char c);
      STR_String(char c, int len);
      STR_String(const char *str);
      STR_String(const char *str, int len);
      STR_String(const STR_String &str);
      STR_String(const STR_String & str, int len);
      STR_String(const char *src1, int src1_len, const char *src2, int src2_len);
      explicit STR_String(int val);
      explicit STR_String(dword val);
      explicit STR_String(float val);
      explicit STR_String(double val);
      inline ~STR_String()                                                                      { delete[] pData; }

      // Operations
      STR_String&             Format(const char *fmt, ...);                   // Set formatted text to string
      STR_String&             FormatAdd(const char *fmt, ...);                // Add formatted text to string
      inline void             Clear()                                                           { Len = pData[0] = 0; }
      inline const STR_String & Reverse()                                                 
        { 
            for (int i1=0, i2=Len-1; i1<i2; i1++, i2--) 
                swap(pData[i1], pData[i2]); return *this; 
        }

      // Properties
      bool                    IsUpper() const;
      bool                    IsLower() const;
      inline bool             IsEmpty() const                                             { return Len==0; }
      inline int              Length() const                                              { return Len; }

      // Data access
      inline STR_String&      SetLength(int len)                                          { AllocBuffer(len, true); Len=len; pData[len]=0; return *this; }
      inline char             GetAt(int pos) const                                  { assertd(pos<Len); return pData[pos]; }
      inline void             SetAt(int pos, char c)                                { assertd(pos<Len); pData[pos]=c; }
      inline void             SetAt(int pos, rcSTR_String str);
      inline void             SetAt(int pos, int num, rcSTR_String str);
      void                    Replace(int pos, rcSTR_String str);
      void                    Replace(int pos, int num, rcSTR_String str);

      // Substrings
      inline STR_String Left(int num) const                                               { num = (num < Len ? num:Len ); return STR_String(pData, num); }
      inline STR_String Right(int num) const                                        { num = (num < Len ? num:Len ); return STR_String(pData+Len-num, num); }
      inline STR_String Mid(int pos, int num = INT_MAX) const                 { pos = (pos < Len ? pos:Len ); num = (num < (Len - pos) ? num : (Len - pos)); return STR_String(pData+pos, num); }

      // Comparison
      int                     Compare(rcSTR_String rhs) const;
      int                     CompareNoCase(rcSTR_String rhs) const;
      inline bool       IsEqual(rcSTR_String rhs) const                             { return (Compare(rhs)==0); }
      inline bool       IsEqualNoCase(rcSTR_String rhs) const                       { return (CompareNoCase(rhs)==0); }

      // Search/replace
      int                     Find(char c, int pos = 0) const;
      int                     Find(const char *str, int pos = 0) const;
      int                     Find(rcSTR_String str, int pos = 0) const;
      int                     RFind(char c) const;
      int                     FindOneOf(const char *set, int pos = 0) const;
      int                     RFindOneOf(const char *set, int pos = 0) const;

      vector<STR_String>      Explode(char c) const;

      // Formatting
      STR_String&             Upper();
      STR_String&             Lower();
      STR_String&             Capitalize();
      STR_String&             TrimLeft();
      STR_String&             TrimLeft(char *set);
      STR_String&             TrimRight();
      STR_String&             TrimRight(char *set);
      STR_String&             Trim();
      STR_String&             Trim(char *set);
      STR_String&             TrimQuotes();

      // Conversions
//    inline operator char*()                                                                   { return pData; }
      inline operator const char *() const                                                { return pData; }
      inline char *Ptr()                                                                              { return pData; }
      inline const char *ReadPtr() const                                                  { return pData; }
      inline float      ToFloat() const                                                         { float x=atof(pData); return x; }
      inline int        ToInt() const                                                           { return atoi(pData); }

      // Operators
      inline rcSTR_String     operator=(const byte *rhs)                                  { return Copy((const char *)rhs, strlen((const char *)rhs)); }
      inline rcSTR_String     operator=(rcSTR_String rhs)                                 { return Copy(rhs.ReadPtr(), rhs.Length()); }
      inline rcSTR_String     operator=(char rhs)                                               { return Copy(&rhs, 1); }
      inline rcSTR_String     operator=(const char *rhs)                                  { return Copy(rhs, strlen(rhs)); }

      inline rcSTR_String     operator+=(const char *rhs)                                 { return Concat(rhs, strlen(rhs)); }
      inline rcSTR_String     operator+=(rcSTR_String rhs)                                { return Concat(rhs.ReadPtr(), rhs.Length()); }
      inline rcSTR_String     operator+=(char rhs)                                        { return Concat(&rhs, 1); }

      
      inline friend bool operator<(rcSTR_String      lhs, rcSTR_String        rhs)  { return (strcmp(lhs, rhs)<0); }
      inline friend bool operator<(rcSTR_String      lhs, const char          *rhs) { return (strcmp(lhs, rhs)<0); };
      inline friend bool operator<(const char         *lhs, rcSTR_String     rhs)   { return (strcmp(lhs, rhs)<0); }
      inline friend bool operator>(rcSTR_String      lhs, rcSTR_String        rhs)  { return (strcmp(lhs, rhs)>0); }
      inline friend bool operator>(rcSTR_String      lhs, const char          *rhs) { return (strcmp(lhs, rhs)>0); }
      inline friend bool operator>(const char         *lhs, rcSTR_String     rhs)   { return (strcmp(lhs, rhs)>0); }
      inline friend bool operator<=(rcSTR_String     lhs, rcSTR_String        rhs)  { return (strcmp(lhs, rhs)<=0); }
      inline friend bool operator<=(rcSTR_String     lhs, const char          *rhs) { return (strcmp(lhs, rhs)<=0); }
      inline friend bool operator<=(const char  *lhs, rcSTR_String     rhs)   { return (strcmp(lhs, rhs)<=0); }
      inline friend bool operator>=(rcSTR_String     lhs, rcSTR_String        rhs)  { return (strcmp(lhs, rhs)>=0); }
      inline friend bool operator>=(rcSTR_String     lhs, const char          *rhs) { return (strcmp(lhs, rhs)>=0); }
      inline friend bool operator>=(const char  *lhs, rcSTR_String     rhs)   { return (strcmp(lhs, rhs)>=0); }
      inline friend bool operator==(rcSTR_String     lhs, rcSTR_String        rhs)  { return ((lhs.Length() == rhs.Length()) && (memcmp(lhs, rhs, lhs.Length())==0)); }
      inline friend bool operator==(rcSTR_String     lhs, const char          *rhs) { return (memcmp(lhs, rhs, lhs.Length()+1)==0); }
      inline friend bool operator==(const char  *lhs, rcSTR_String     rhs)   { return (memcmp(lhs, rhs, rhs.Length()+1)==0); }
      inline friend bool operator!=(rcSTR_String     lhs, rcSTR_String        rhs)  { return ((lhs.Length() != rhs.Length()) || (memcmp(lhs, rhs, lhs.Length())!=0)); }
      inline friend bool operator!=(rcSTR_String     lhs, const char          *rhs) { return (memcmp(lhs, rhs, lhs.Length()+1)!=0); }
      inline friend bool operator!=(const char  *lhs, rcSTR_String     rhs)   { return (memcmp(lhs, rhs, rhs.Length()+1)!=0); }

      // serializing
      //int             Serialize(pCStream stream);

protected:
      // Implementation
      void  AllocBuffer(int len, bool keep_contents);
      rcSTR_String Copy(const char *src, int len);
      rcSTR_String Concat(const char *data, int len);

      static bool       isLower(char c)                                                   { return !isUpper(c); }
      static bool       isUpper(char c)                                                   { return (c>='A') && (c <= 'Z'); }
      static bool       isSpace(char c)                                                   { return (c==' ') || (c=='\t'); }

      char   *pData;                                                                            // -> STR_String data
      int      Len;                                                                                   // Data length
      int      Max;                                                                                   // Space in data buffer
};

inline  STR_String operator+(rcSTR_String    lhs, rcSTR_String   rhs)   { return STR_String(lhs.ReadPtr(), lhs.Length(), rhs.ReadPtr(), rhs.Length()); }
inline  STR_String operator+(rcSTR_String    lhs, char        rhs)      { return STR_String(lhs.ReadPtr(), lhs.Length(), &rhs, 1); }
inline  STR_String operator+(char         lhs, rcSTR_String   rhs)      { return STR_String(&lhs, 1, rhs.ReadPtr(), rhs.Length()); }
inline  STR_String operator+(rcSTR_String    lhs, const char *rhs)      { return STR_String(lhs.ReadPtr(), lhs.Length(), rhs, strlen(rhs)); }
inline  STR_String operator+(const char  *lhs, rcSTR_String   rhs)      { return STR_String(lhs, strlen(lhs), rhs.ReadPtr(), rhs.Length()); }


#endif //_STR_String_H_


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