參考了c++builder中的ansistring, 實現了常用的功能,其它需要的可以自己新增.
/* cesstring.h
* 類似ansistring 的乙個類, 用標準c++編寫, 可以用在vc和cb中
*/#ifndef _cesstring_h_
#define _cesstring_h_
#include #include #include #include namespace cesstring
; lptstr m_psztext;
protected:
void __fastcall allocatebuffer(const uint ulen, bool brealloc = false)
}else
pstrrec->m_ubufferlen = ulen;
m_psztext = (tchar *)(pstrrec + 1);
if (!brealloc)
m_psztext[ulen] = _t('\0'); // set last character in buffer to 0
}void __fastcall safedelete()
}public:
cesstring() : m_psztext(null)
{};cesstring(const cesstring & src)
;cesstring(lpctstr pszsrc, uint ulen = 0)
;~cesstring()
;public:
strrec & __fastcall getrec() const
;uint __fastcall length() const
;inline void __fastcall settextlength(uint ulen) const
// c string operator
tchar* __fastcall c_str() const
bool __fastcall isempty() const
// modify string
cesstring & __fastcall insert(const cesstring& str, uint uindex)
uint ustrlen = lstrlen(str);
uint usrclen = length();
uint upos = uindex - 1;
this->allocatebuffer(ustrlen + usrclen, true);
memmove(m_psztext + upos + ustrlen, m_psztext + upos, usrclen - upos);
memcpy(m_psztext + upos, str.m_psztext, ustrlen);
settextlength(ustrlen + usrclen);
return *this;
}cesstring& __fastcall delete(uint uindex, uint count)
if (upos + count == length())
else
return *this;
}cesstring& __fastcall setlength(uint unewlength)
else
return *this;
}int __fastcall pos(const cesstring& substr) const
cesstring __fastcall lowercase() const
cesstring __fastcall uppercase() const
cesstring __fastcall trim() const
cesstring __fastcall trimleft() const
return tmp;
}cesstring __fastcall trimright() const
return tmp;
}cesstring __fastcall substring(uint index, uint count) const
int __fastcall toint() const
long lvalue = _tcstol(m_psztext, &pstop, nbase);
if (errno == erange || *pstop != _t('\0'))
return lvalue;
}int __fastcall tointdef(int defaultvalue) const
long lvalue = _tcstol(m_psztext, &pstop, nbase);
if (errno == erange || *pstop != _t('\0'))
return lvalue;
}double __fastcall todouble() const
return dvalue;
}#undef vprintf
#undef printf
#undef sprintf
int __cdecl cesstring::vprintf(lpctstr format, va_list paramlist)
int __cdecl cesstring::cat_vprintf(lpctstr format, va_list paramlist)
int __cdecl cesstring::printf(lpctstr format, ...)
cesstring& __cdecl cesstring::sprintf(lpctstr format, ...)
int __cdecl cesstring::cat_printf(lpctstr format, ...)
cesstring& __cdecl cesstring::cat_sprintf(lpctstr format, ...)
public:
operator lpctstr() const
// pointer to string
const cesstring& operator= (lpctstr psztext) // set a new text
const cesstring& operator= (const cesstring &str) // set a new text
const cesstring& operator+=(lpctstr psztext) // add a text
const cesstring& operator+=(cesstring str) // add a text
const cesstring operator+(lpctstr psztext) // add a text
const cesstring operator+(cesstring str) // add a text
// comparisons
bool operator ==(const cesstring& str) const
bool operator !=(const cesstring& str) const
bool operator <(const cesstring& str) const
bool operator >(const cesstring& str) const
bool operator <=(const cesstring& str) const
bool operator >=(const cesstring& str) const
tchar& operator (const uint idx)
return m_psztext[idx-1];
}};}
using namespace cesstring;
#endif //_cesstring_h_
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