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SDL_strtokr.c (V2)

SDL_strtokr.c (text/x-csrc), 3.06 KB, created by Ozkan Sezer on 2019-11-19 10:45:51 UTC

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Description:

Filename:

MIME Type:

Creator: Ozkan Sezer

Created: 2019-11-19 10:45:51 UTC

Size: 3.06 KB

patch

obsolete

>/*
>  Simple DirectMedia Layer
>  Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
>
>  This software is provided 'as-is', without any express or implied
>  warranty.  In no event will the authors be held liable for any damages
>  arising from the use of this software.
>
>  Permission is granted to anyone to use this software for any purpose,
>  including commercial applications, and to alter it and redistribute it
>  freely, subject to the following restrictions:
>
>  1. The origin of this software must not be misrepresented; you must not
>     claim that you wrote the original software. If you use this software
>     in a product, an acknowledgment in the product documentation would be
>     appreciated but is not required.
>  2. Altered source versions must be plainly marked as such, and must not be
>     misrepresented as being the original software.
>  3. This notice may not be removed or altered from any source distribution.
>*/
>#if defined(__clang_analyzer__)
>#define SDL_DISABLE_ANALYZE_MACROS 1
>#endif
>
>#include "../SDL_internal.h"
>
>#include "SDL_stdinc.h"
>
>/* to be removed and moved into: SDL_stdinc.h
>extern DECLSPEC char * SDLCALL SDL_strtokr(char *s1, const char *s2, char **ptr);*/
>char *SDL_strtokr(char *s1, const char *s2, char **ptr)
>{
>#if defined(HAVE_STRTOK_R)
>    return strtok_r(s1, s2, ptr);
>
>#elif defined(_MSC_VER) && defined(HAVE_STRTOK_S)
>    return strtok_s(s1, s2, ptr);
>
>#else /* SDL implementation */
>/*
> * Adapted from _PDCLIB_strtok() of PDClib library at
> * https://github.com/DevSolar/pdclib.git
> *
> * The code was under CC0 license:
> * https://creativecommons.org/publicdomain/zero/1.0/legalcode :
> *
> *                        No Copyright
> *
> * The person who associated a work with this deed has dedicated the
> * work to the public domain by waiving all of his or her rights to
> * the work worldwide under copyright law, including all related and
> * neighboring rights, to the extent allowed by law.
> *
> * You can copy, modify, distribute and perform the work, even for
> * commercial purposes, all without asking permission. See Other
> * Information below.
> */
>    const char *p = s2;
>
>    if (!s2 || !ptr || (!s1 && !*ptr)) return NULL;
>
>    if (s1 != NULL) {  /* new string */
>        *ptr = s1;
>    } else { /* old string continued */
>        if (*ptr == NULL) {
>        /* No old string, no new string, nothing to do */
>            return NULL;
>        }
>        s1 = *ptr;
>    }
>
>    /* skip leading s2 characters */
>    while (*p && *s1) {
>        if (*s1 == *p) {
>        /* found separator; skip and start over */
>            ++s1;
>            p = s2;
>            continue;
>        }
>        ++p;
>    }
>
>    if (! *s1) { /* no more to parse */
>        *ptr = s1;
>        return NULL;
>    }
>
>    /* skipping non-s2 characters */
>    *ptr = s1;
>    while (**ptr) {
>        p = s2;
>        while (*p) {
>            if (**ptr == *p++) {
>            /* found separator; overwrite with '\0', position *ptr, return */
>                *((*ptr)++) = '\0';
>                return s1;
>            }
>        }
>        ++(*ptr);
>    }
>
>    /* parsed to end of string */
>    return s1;
>#endif
>}

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We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.