97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/*
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* Copyright (C) 2002-2019 The DOSBox Team
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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 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef DOSBOX_SUPPORT_H
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#define DOSBOX_SUPPORT_H
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#include <algorithm>
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#include <cstdio>
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#include <ctype.h>
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#include <string.h>
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#include <string>
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#ifndef DOSBOX_DOSBOX_H
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#include "dosbox.h"
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#endif
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#if defined (_MSC_VER) /* MS Visual C++ */
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#define strcasecmp(a,b) stricmp(a,b)
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#define strncasecmp(a,b,n) _strnicmp(a,b,n)
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#endif
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/// Copy a string into C array
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///
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/// This function copies string pointed by src to fixed-size buffer dst.
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/// At most N bytes from src are copied, where N is size of dst.
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/// If exactly N bytes are copied, then terminating null byte is put
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/// into buffer, thus buffer overrun is prevented.
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///
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/// Function returns pointer to buffer to be compatible with std::strcpy.
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///
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/// Usage:
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///
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/// char buffer[2];
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/// safe_strcpy(buffer, "abc");
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/// // buffer is filled with "a"
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template<size_t N>
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char * safe_strcpy(char (& dst)[N], const char * src) noexcept {
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snprintf(dst, N, "%s", src);
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return & dst[0];
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}
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template<size_t N>
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char * safe_strcat(char (& dst)[N], const char * src) noexcept {
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strncat(dst, src, N - strnlen(dst, N) - 1);
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return & dst[0];
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}
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#define safe_strncpy(a,b,n) do { strncpy((a),(b),(n)-1); (a)[(n)-1] = 0; } while (0)
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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// Clamp: given a value that can be compared with the given minimum and maximum
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// values, this function will:
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// * return the value if it's in-between or equal to either bounds, or
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// * return either bound depending on which bound the value is beyond
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template <class T> T clamp(const T& n, const T& lower, const T& upper) {
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return std::max<T>(lower, std::min<T>(n, upper));
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}
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void strreplace(char * str,char o,char n);
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char *ltrim(char *str);
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char *rtrim(char *str);
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char *trim(char * str);
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char * upcase(char * str);
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char * lowcase(char * str);
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bool ScanCMDBool(char * cmd,char const * const check);
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char * ScanCMDRemain(char * cmd);
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char * StripWord(char *&cmd);
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bool IsDecWord(char * word);
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bool IsHexWord(char * word);
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Bits ConvDecWord(char * word);
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Bits ConvHexWord(char * word);
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void trim(std::string& str);
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void upcase(std::string &str);
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void lowcase(std::string &str);
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#endif
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