trim.cpp

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/*
**  Command & Conquer Generals Zero Hour(tm)
**  Copyright 2025 Electronic Arts Inc.
**
**  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/>.
*/
 
/*********************************************************************************************** 
 ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               *** 
 *********************************************************************************************** 
 *                                                                                             * 
 *                 Project Name : Command & Conquer                                            * 
 *                                                                                             * 
 *                     $Archive:: /Commando/Code/wwlib/trim.cpp                               $* 
 *                                                                                             * 
 *                      $Author:: Denzil_l                                                    $*
 *                                                                                             * 
 *                     $Modtime:: 11/08/01 11:35a                                             $*
 *                                                                                             * 
 *                    $Revision:: 4                                                           $*
 *                                                                                             *
 *---------------------------------------------------------------------------------------------* 
 * Functions:                                                                                  * 
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
 
#include    "always.h"
#include    "trim.h"
#include    <string.h>
 
#ifdef _UNIX
#include    <wctype.h>
#endif // _UNIX
 
/*********************************************************************************************** 
 * strtrim -- Trim leading and trailing white space off of string.                             * 
 *                                                                                             * 
 *    This routine will remove the leading and trailing whitespace from the string specifed.   * 
 *    The string is modified in place.                                                         * 
 *                                                                                             * 
 * INPUT:   buffer   -- Pointer to the string to be trimmed.                                   * 
 *                                                                                             * 
 * OUTPUT:  none                                                                               * 
 *                                                                                             * 
 * WARNINGS:   none                                                                            * 
 *                                                                                             * 
 * HISTORY:                                                                                    * 
 *   02/06/1997 JLB : Created.                                                                 * 
 *=============================================================================================*/
char* strtrim(char* buffer)
{
    if (buffer) {
        /* Strip leading white space from the string. */
        char* source = buffer;
 
        while ((*source != 0) && ((unsigned char)*source <= 32)) {
            ++source;
        }
 
        if (source != buffer) {
            strcpy(buffer, source);
        }
 
        /* Clip trailing white space from the string. */
        for (int index = strlen(buffer) - 1; index >= 0; --index) {
            if ((*source != 0) && ((unsigned char)buffer[index] <= 32)) {
                buffer[index] = '\0';
            } else {
                break;
            }
        }
    }
 
    return buffer;
}
 
 
wchar_t* wcstrim(wchar_t* buffer)
{
    if (buffer) {
        /* Strip leading white space from the string. */
        wchar_t* source = buffer;
 
        while ((*source != 0) && ((unsigned int)*source <= 32)) {
            ++source;
        }
        
        if (source != buffer) {
            wcscpy(buffer, source);
        }
 
        /* Clip trailing white space from the string. */
        for (int index = wcslen(buffer) - 1; index >= 0; --index) {
            if ((*source != 0) && ((unsigned int)buffer[index] <= 32)) {
                buffer[index] = L'\0';
            } else {
                break;
            }
        }
    }
 
    return buffer;
}