63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2020 William Wilgus
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "plugin.h"
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#include "kbd_helper.h"
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/* USAGE:
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unsigned short kbd[64];
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unsigned short *kbd_p = kbd;
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if (!kbd_create_layout("ABCD1234\n", kbd, sizeof(kbd)))
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kbd_p = NULL;
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rb->kbd_input(buf,sizeof(buf), kbd_p);
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*/
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/* create a custom keyboard layout for kbd_input
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* success returns size of buffer used
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* failure returns 0
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*/
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int kbd_create_layout(char *layout, unsigned short *buf, int bufsz)
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{
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unsigned short *pbuf;
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const unsigned char *p = layout;
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int len = 0;
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pbuf = buf;
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while (*p && (pbuf - buf + (ptrdiff_t) sizeof(unsigned short)) < bufsz)
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{
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p = rb->utf8decode(p, &pbuf[len+1]);
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if (pbuf[len+1] == '\n')
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{
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*pbuf = len;
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pbuf += len+1;
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len = 0;
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}
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else
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len++;
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}
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if (len+1 < bufsz)
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{
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*pbuf = len;
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pbuf[len+1] = 0xFEFF; /* mark end of characters */
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return len + 1;
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}
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return 0;
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}
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