File: glibc_strtok_r.cc

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/* Reentrant string tokenizer.  Generic version.
   Copyright (C) 1991,1996-1999,2001,2004 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

/* Copyright (C) 1991,93,96,97,99,2000,2002 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Based on strlen implementation by Torbjorn Granlund (tege@sics.se),
   with help from Dan Sahlin (dan@sics.se) and
   commentary by Jim Blandy (jimb@ai.mit.edu);
   adaptation to memchr suggested by Dick Karpinski (dick@cca.ucsf.edu),
   and implemented by Roland McGrath (roland@ai.mit.edu).

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2012 Alexey Pavlov <alexpux@gmail.com>
// Copyright (C) 2012 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2017 Pekka Vuorela <pekka.vuorela@jollamobile.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================

#include "glibc.h"

#ifndef HAVE_STRTOK_R

#    include <cstring>

#    define __rawmemchr strchr

char *strtok_r(char *s, const char *delim, char **save_ptr)
{
    char *token;

    if (s == NULL)
        s = *save_ptr;

    /* Scan leading delimiters.  */
    s += strspn(s, delim);
    if (*s == '\0') {
        *save_ptr = s;
        return NULL;
    }

    /* Find the end of the token.  */
    token = s;
    s = strpbrk(token, delim);
    if (s == NULL)
        /* This token finishes the string.  */
        *save_ptr = __rawmemchr(token, '\0');
    else {
        /* Terminate the token and make *SAVE_PTR point past it.  */
        *s = '\0';
        *save_ptr = s + 1;
    }
    return token;
}

#endif