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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [host/] [tools/] [Utils/] [common/] [Collections.cpp] - Blame information for rev 790

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1 786 skrzyp
// ####ECOSHOSTGPLCOPYRIGHTBEGIN####                                        
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// -------------------------------------------                              
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// This file is part of the eCos host tools.                                
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// Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.            
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//
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// This program is free software; you can redistribute it and/or modify     
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// it under the terms of the GNU General Public License as published by     
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// the Free Software Foundation; either version 2 or (at your option) any   
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// later version.                                                           
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//
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// This program is distributed in the hope that it will be useful, but      
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// WITHOUT ANY WARRANTY; without even the implied warranty of               
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        
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// General Public License for more details.                                 
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//
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// You should have received a copy of the GNU General Public License        
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// along with this program; if not, write to the                            
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// Free Software Foundation, Inc., 51 Franklin Street,                      
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// Fifth Floor, Boston, MA  02110-1301, USA.                                
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// -------------------------------------------                              
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// ####ECOSHOSTGPLCOPYRIGHTEND####                                          
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// include winsock2.h early to eliminate fd_set warning
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#ifdef __CYGWIN__
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#include <winsock2.h>
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#endif
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#include "Collections.h"
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void String::Format (LPCTSTR  const pszFormat,...)
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{
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  va_list args;
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  va_start(args, pszFormat);
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  vFormat(pszFormat,args);
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  va_end(args);
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}
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String String::SFormat (LPCTSTR  const pszFormat,...)
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{
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  String s;
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  va_list args;
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  va_start(args, pszFormat);
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  s.vFormat(pszFormat,args);
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  va_end(args);
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  return s;
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}
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void String::vFormat(LPCTSTR  pszFormat, va_list marker)
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{
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  for(int nLength=100;nLength;) {
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    TCHAR *buf=new TCHAR[1+nLength];
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    int n=_vsntprintf(buf, nLength, pszFormat, marker );
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    if(-1==n){
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      nLength*=2;  // NT behavior
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    } else if (n<nLength){
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      string::operator=(buf);
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      nLength=0;   // trigger exit from loop
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    } else {
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      nLength=n+1; // UNIX behavior generally, or NT behavior when buffer size exactly matches required length
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    }
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    delete [] buf;
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  }
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}
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TCHAR * String::GetBuffer(unsigned int nLength)
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{
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  assert(NULL==m_pszBuf);
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  nLength=MAX(nLength,size()); // to accommodate _tcscpy below
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  m_pszBuf=new TCHAR[1+nLength];
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  m_nBufferLength=nLength;
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  _tcscpy(m_pszBuf,c_str());
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  return m_pszBuf;
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}
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void String::ReleaseBuffer()
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{
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  assert(m_pszBuf);
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  m_pszBuf[m_nBufferLength]=_TCHAR('\0'); // just in case the terminating null has been forgotten
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  string::operator=(m_pszBuf);
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  delete [] m_pszBuf;
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  m_pszBuf=0;
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}
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String String::CStrToUnicodeStr(const char *psz)
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{
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  String str;
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#ifdef _UNICODE
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  int nLength=1+strlen(psz);
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  MultiByteToWideChar(CP_ACP, 0, psz, -1, str.GetBuffer(nLength), nLength);
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  str.ReleaseBuffer();
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#else
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  str=psz;
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#endif
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  return str;
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}
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int String::Chop(StringArray &ar,TCHAR cSep,bool bObserveStrings/*=TRUE*/) const
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{
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  assert('\0'!=cSep);
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#define IsSep(c) (cSep==_TCHAR(' ')?_istspace(c):c==cSep)
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  LPCTSTR c=c_str();
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  ar.clear();
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  while(*c){
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    // Spaces are slightly different from other separators - we treat multiple instances as
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    // just one (a la sscanf)
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    if(_istspace(cSep)){
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      while(IsSep(*c))c++;
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    } else if (ar.size()>0) {
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      c++;
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    }
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    if(*c){
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      String strTok;
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      if(bObserveStrings){
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        bool bInString=false;
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        do{
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          if(*c==_TCHAR('\\') && c[1]){
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            strTok+=c[1];
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            c++;
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          } else if(*c==_TCHAR('"')){
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            bInString ^= 1;
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          } else if (!bInString && IsSep(*c)) {
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            break;
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          } else {
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            strTok+=*c;
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          }
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        } while (*++c);
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      } else {
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        do {
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          if(IsSep(*c)) {
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            break;
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          } else {
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            strTok+=*c;
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          }
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        } while (*++c);
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      }
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      ar.push_back(strTok);
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    }
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  }
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  return ar.size();
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}
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char * String::GetCString() const
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{
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  char *psz=new char[1+size()];
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#ifdef _UNICODE
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  WideCharToMultiByte(CP_ACP, 0, c_str(), -1, psz, 1+size(), NULL, NULL);
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#else
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  strcpy(psz,c_str());
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#endif
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  return psz;
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}
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void String::Replace(LPCTSTR psz1, LPCTSTR psz2, bool bObserveEscapes)
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{
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  for(unsigned int nOffset=0;nOffset<size();){
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    LPCTSTR psz=c_str()+nOffset;
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    const TCHAR *pc=_tcsstr(psz,psz1);
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    if(pc){
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      if(bObserveEscapes && pc>psz && _TCHAR('\\')==pc[-1]){
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        // Substitution protected by escape
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        nOffset=(pc-psz)+_tcslen(psz1);
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      } else {
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        String strNew(psz,pc-psz); // before the substitution
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        strNew+=psz2;              // substitution text
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        pc+=_tcslen(psz1);         // past the substituted text
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        strNew+=pc;                // after the substitution
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        string::operator=(strNew);
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        nOffset=(pc-psz)+_tcslen(psz2);
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      }
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    } else {
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      break;
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    }
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  }
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}

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