/*
 * This file is part of libsidplayfp, a SID player engine.
 *
 * Copyright (C) Michael Schwendt <mschwendt@yahoo.com>
 *
 *  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 2 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, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include "SidTuneTools.h"

#include "SidTuneCfg.h"

// Return pointer to file name position in complete path.
size_t SidTuneTools::fileNameWithoutPath(const char* s)
{
    size_t last_slash_pos = -1;
    const size_t length = strlen(s);
    for (size_t pos = 0; pos < length; pos++)
    {
#if defined(SID_FS_IS_COLON_AND_BACKSLASH_AND_SLASH)
        if (s[pos] == ':' || s[pos] == '\\'
            || s[pos] == '/')
#elif defined(SID_FS_IS_COLON_AND_SLASH)
        if (s[pos] == ':' || s[pos] == '/')
#elif defined(SID_FS_IS_SLASH)
        if (s[pos] == '/')
#elif defined(SID_FS_IS_BACKSLASH)
        if (s[pos] == '\\')
#elif defined(SID_FS_IS_COLON)
        if (s[pos] == ':')
#else
#  error Missing file/path separator definition.
#endif
        {
            last_slash_pos = pos;
        }
    }
    return last_slash_pos + 1;
}

// Return pointer to file name position in complete path.
// Special version: file separator = forward slash.
size_t SidTuneTools::slashedFileNameWithoutPath(const char* s)
{
    size_t last_slash_pos = -1;
    const size_t length = strlen(s);
    for (size_t pos = 0; pos < length; pos++)
    {
        if ( s[pos] == '/' )
        {
            last_slash_pos = pos;
        }
    }
    return last_slash_pos + 1;
}

// Return pointer to file name extension in path.
// The backwards-version.
const char* SidTuneTools::fileExtOfPath(const char* s)
{
    size_t last_dot_pos = strlen(s);  // assume no dot and append
    for (size_t pos = last_dot_pos; pos > 0; pos--)
    {
        if (s[pos-1] == '.')
        {
            last_dot_pos = pos - 1;
            break;
        }
    }
    return  &s[last_dot_pos];
}
