#ifndef _STR_H_ #define _STR_H_ #include class String { public: String(); String(const String& src) { m_pData = NULL; *this = src; } String(const char* str) { m_pData = NULL; *this = str; } ~String(); int GetLength() const { return strlen(m_pData); } bool IsEmpty() const { return m_pData[0] == '\0'; } void Empty() { m_pData[0] = '\0'; } char GetAt(int index) const { return m_pData[index]; } char& operator[](int index) const { return m_pData[index]; } void SetAt(int index, char ch) { m_pData[index] = ch; } operator char*() const { return m_pData; } operator const char*() const { return m_pData; } // Operators const String& operator=(const String& src); const String& operator=(char ch); const String& operator=(const char *src); const String& operator+=(const String& string); const String& operator+=(char ch); const String& operator+=(const char *src); // Comparison int Compare(const char *string) const { return strcmp(m_pData, string); } int CompareNoCase(const char *string) const; int CompareNoCase(const char *string, int count) const; bool Match(const String& Expression) const; // simple sub-string extraction String& Mid(int first, int count) const; String& Mid(int first) const { return Mid(first, GetLength() - first); } String& Left(int count) const; String& Right(int count) const; // upper/lower/reverse conversion void MakeUpper(); void MakeLower(); void MakeReverse(); // trimming whitespace (either side) void TrimRight(); void TrimLeft(); // searching (return starting index, or -1 if not found) // look for a single character match int Find(char ch) const { char *pf = strchr(m_pData, ch); return (pf) ? (pf - m_pData) : -1; } int ReverseFind(char ch) const { char *pf = strrchr(m_pData, ch); return (pf) ? (pf - m_pData) : -1; } int FindOneOf(const char *set) const { char *pf = strpbrk(m_pData, set); return (pf) ? (pf - m_pData) : -1; } // look for a specific sub-string int Find(const char *str) const { char *pf = strstr(m_pData, str); return (pf) ? (pf - m_pData) : -1; } char* GetBuffer(int len) { if (len > (int)strlen(m_pData)) { char *tmp = new char[len+1]; strcpy(tmp, m_pData); delete []m_pData; m_pData = tmp; } return m_pData; } void ReleaseBuffer(int len = -1) { if (len == -1) len = strlen(m_pData); m_pData[len] = '\0'; } protected: char* m_pData; }; // Concatenation operators String& operator+(const String& string1, const String& string2); String& operator+(const String& string, char ch); String& operator+(char ch, const String& string); String& operator+(const String& string1, const char *string2); String& operator+(const char *string1, const String& string2); // Comparison operators inline bool operator==(const String& s1, const String& s2) { return s1.Compare(s2) == 0; } inline bool operator==(const String& s1, const char *s2) { return s1.Compare(s2) == 0; } inline bool operator==(const char *s1, const String& s2) { return s2.Compare(s1) == 0; } inline bool operator!=(const String& s1, const String& s2) { return s1.Compare(s2) != 0; } inline bool operator!=(const String& s1, const char *s2) { return s1.Compare(s2) != 0; } inline bool operator!=(const char *s1, const String& s2) { return s2.Compare(s1) != 0; } inline bool operator<(const String& s1, const String& s2) { return s1.Compare(s2) < 0; } inline bool operator<(const String& s1, const char *s2) { return s1.Compare(s2) < 0; } inline bool operator<(const char *s1, const String& s2) { return s2.Compare(s1) > 0; } inline bool operator>(const String& s1, const String& s2) { return s1.Compare(s2) > 0; } inline bool operator>(const String& s1, const char *s2) { return s1.Compare(s2) > 0; } inline bool operator>(const char *s1, const String& s2) { return s2.Compare(s1) < 0; } inline bool operator<=(const String& s1, const String& s2) { return s1.Compare(s2) <= 0; } inline bool operator<=(const String& s1, const char *s2) { return s1.Compare(s2) <= 0; } inline bool operator<=(const char *s1, const String& s2) { return s2.Compare(s1) >= 0; } inline bool operator>=(const String& s1, const String& s2) { return s1.Compare(s2) >= 0; } inline bool operator>=(const String& s1, const char *s2) { return s1.Compare(s2) >= 0; } inline bool operator>=(const char *s1, const String& s2) { return s2.Compare(s1) <= 0; } #endif // _STR_H_