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/*
* Descent 3
* Copyright (C) 2024 Parallax Software
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
--- HISTORICAL COMMENTS FOLLOW ---
* $Logfile: /DescentIII/Main/misc/pstring.cpp $
* $Revision: 4 $
* $Date: 4/15/99 1:51a $
* $Author: Jeff $
*
* Safe string manipulation and creation functions
*
* $Log: /DescentIII/Main/misc/pstring.cpp $
*
* 4 4/15/99 1:51a Jeff
* changes for linux compile
*
* 3 12/16/98 1:57p Samir
* Replaced CleanupString2 with CleanupStr
*
* 2 11/01/98 1:56a Jeff
* added pstring.cpp/.h
*
* $NoKeywords: $
*/
#include <cctype>
#include "pstring.h"
#include <cstdint>
// CleanupStr
// This function strips all leading and trailing spaces, keeping internal spaces. This goes for tabs too.
std::size_t CleanupStr(char *dest, const char *src, std::size_t destlen) {
if (destlen == 0)
return 0;
const char *end;
std::size_t out_size;
// Trim leading space
while (std::isspace((uint8_t)*src))
src++;
// All spaces?
if (*src == '\0') {
*dest = '\0';
return 1;
}
// Trim trailing space
end = src + std::strlen(src) - 1;
while (end > src && std::isspace((uint8_t)*end))
end--;
end++;
// Set output size to minimum of trimmed string length and buffer size minus 1
out_size = (end - src) < destlen - 1 ? (end - src) : destlen - 1;
// Copy trimmed string and add null terminator
std::memcpy(dest, src, out_size);
dest[out_size] = '\0';
return out_size;
}
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