/*************************************************************************** astring.h Allocated string manipulation functions. **************************************************************************** Copyright Aaron Giles All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name 'MAME' nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ***************************************************************************/ #pragma once #ifndef __ASTRING_H__ #define __ASTRING_H__ #include #include #include "osdcomm.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // basic allocated string class class astring { public: // simple construction/destruction astring() { init(); } ~astring(); // construction with copy astring(const char *string) { init().cpy(string); } astring(const char *string, int length) { init().cpy(string, length); } astring(const char *str1, const char *str2) { init().cpy(str1).cat(str2); } astring(const char *str1, const char *str2, const char *str3) { init().cpy(str1).cat(str2).cat(str3); } astring(const char *str1, const char *str2, const char *str3, const char *str4) { init().cpy(str1).cat(str2).cat(str3).cat(str4); } astring(const char *str1, const char *str2, const char *str3, const char *str4, const char *str5) { init().cpy(str1).cat(str2).cat(str3).cat(str4).cat(str5); } astring(const astring &string) { init().cpy(string); } astring(const astring &string, int start, int count = -1) { init().cpysubstr(string, start, count); } // assignment operators astring &operator=(const char *string) { return cpy(string); } astring &operator=(const astring &string) { return cpy(string); } // concatenation operators astring& operator+=(const astring &string) { return cat(string); } friend astring operator+(const astring &lhs, const astring &rhs) { return astring(lhs) += rhs; } friend astring operator+(const astring &lhs, const char *rhs) { return astring(lhs) += rhs; } friend astring operator+(const char *lhs, const astring &rhs) { return astring(lhs) += rhs; } // comparison operators bool operator==(const char *string) const { return (cmp(string) == 0); } bool operator==(const astring &string) const { return (cmp(string) == 0); } bool operator!=(const char *string) const { return (cmp(string) != 0); } bool operator!=(const astring &string) const { return (cmp(string) != 0); } bool operator<(const char *string) const { return (cmp(string) < 0); } bool operator<(const astring &string) const { return (cmp(string) < 0); } bool operator<=(const char *string) const { return (cmp(string) <= 0); } bool operator<=(const astring &string) const { return (cmp(string) <= 0); } bool operator>(const char *string) const { return (cmp(string) > 0); } bool operator>(const astring &string) const { return (cmp(string) > 0); } bool operator>=(const char *string) const { return (cmp(string) >= 0); } bool operator>=(const astring &string) const { return (cmp(string) >= 0); } // character access operators char operator[](int index) const { return (index < len()) ? m_text[index] : 0; } // implicit boolean conversion operators operator bool() { return m_text[0] != 0; } operator bool() const { return m_text[0] != 0; } // C string conversion operators and helpers operator const char *() const { return m_text; } const char *cstr() const { return m_text; } char *stringbuffer(int size) { ensure_room(size); return m_text; } // buffer management astring &reset() { return cpy(""); } astring &expand(int length) { ensure_room(length); return *this; } // length query int len() const { return strlen(m_text); } // copy helpers astring &cpy(const char *src, int count); astring &cpysubstr(const astring &src, int start, int count = -1); astring &cpy(const astring &src) { return cpy(src.cstr(), src.len()); } astring &cpy(const char *src) { return cpy(src, strlen(src)); } // insertion helpers astring &ins(int insbefore, const char *src, int count); astring &inssubstr(int insbefore, const astring &src, int start, int count = -1); astring &ins(int insbefore, const astring &src) { return ins(insbefore, src.cstr(), src.len()); } astring &ins(int insbefore, const char *src) { return ins(insbefore, src, strlen(src)); } // concatenation helpers (== insert at end) astring &cat(const char *src, int count) { return ins(-1, src, count); } astring &catsubstr(const astring &src, int start, int count = -1) { return inssubstr(-1, src, start, count); } astring &cat(const astring &src) { return ins(-1, src.cstr(), src.len()); } astring &cat(const char *src) { return ins(-1, src, strlen(src)); } astring &cat(char ch) { return ins(-1, &ch, 1); } // substring helpers astring &substr(int start, int count = -1); astring &del(int start, int count = -1); // formatted string helpers int vprintf(const char *format, va_list args); int catvprintf(const char *format, va_list args); int printf(const char *format, ...) { va_list ap; va_start(ap, format); int result = this->vprintf(format, ap); va_end(ap); return result; } int catprintf(const char *format, ...) { va_list ap; va_start(ap, format); int result = catvprintf(format, ap); va_end(ap); return result; } astring &format(const char *format, ...) { va_list ap; va_start(ap, format); this->vprintf(format, ap); va_end(ap); return *this; } astring &catformat(const char *format, ...) { va_list ap; va_start(ap, format); catvprintf(format, ap); va_end(ap); return *this; } // comparison helpers int cmp(const char *str2, int count) const; int cmpsubstr(const astring &str2, int start, int count = -1) const; int cmp(const astring &str2) const { return cmp(str2.cstr(), str2.len()); } int cmp(const char *str2) const { return cmp(str2, strlen(str2)); } // case-insensitive comparison helpers int icmp(const char *str2, int count) const; int icmpsubstr(const astring &str2, int start, int count = -1) const; int icmp(const astring &str2) const { return icmp(str2.cstr(), str2.len()); } int icmp(const char *str2) const { return icmp(str2, strlen(str2)); } // character searching helpers int chr(int start, int ch) const; int rchr(int start, int ch) const; // string searching/replacing helpers int find(int start, const char *search) const; int find(const char *search) const { return find(0, search); } int replace(int start, const char *search, const char *replace); int replace(const char *search, const char *_replace) { return replace(0, search, _replace); } // misc utilities astring &delchr(int ch); astring &replacechr(int ch, int newch); astring &makeupper(); astring &makelower(); astring &trimspace(); private: // internal helpers astring &init(); char *safe_string_base(int start) const; bool ensure_room(int length); void normalize_substr(int &start, int &count, int length) const; // internal state char * m_text; int m_alloclen; char m_smallbuf[64]; int m_len; }; #endif /* __ASTRING_H__ */