97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
/*
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* $Id$
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*
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Copyright (c) 2014-2019 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "moo-prv.h"
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moo_pfrc_t moo_pf_utf8_seqlen (moo_t* moo, moo_mod_t* mod, moo_ooi_t nargs)
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{
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moo_oop_t rcv;
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moo_uch_t uch;
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const moo_bch_t* utf8;
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moo_oow_t size;
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int n;
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/* the receiver should be a byte array or the like. */
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rcv = MOO_STACK_GETRCV(moo, nargs);
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MOO_PF_CHECK_RCV (moo, moo_iskindof(moo, rcv, moo->_byte_array));
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utf8 = (const moo_bch_t*)MOO_OBJ_GET_BYTE_SLOT(rcv);
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size = MOO_OBJ_GET_SIZE(rcv);
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/* TODO: do i need to check the first byte and return bytes required regardless of the available length? */
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if ((n = moo_utf8_to_uc(utf8, size, &uch)) == 0)
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{
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/* invalid sequence */
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moo_seterrnum (moo, MOO_EECERR);
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return MOO_PF_FAILURE;
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}
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MOO_STACK_SETRET (moo, nargs, MOO_SMOOI_TO_OOP(n));
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return MOO_PF_SUCCESS;
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}
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moo_pfrc_t moo_pf_utf8_to_uc (moo_t* moo, moo_mod_t* mod, moo_ooi_t nargs)
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{
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moo_oop_t rcv;
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moo_uch_t uch;
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const moo_bch_t* utf8;
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moo_oow_t size;
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int n;
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/* the receiver should be a byte array or the like. */
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rcv = MOO_STACK_GETRCV(moo, nargs);
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MOO_PF_CHECK_RCV (moo, moo_iskindof(moo, rcv, moo->_byte_array));
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/* TODO: accept offset and size */
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utf8 = (const moo_bch_t*)MOO_OBJ_GET_BYTE_SLOT(rcv);
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size = MOO_OBJ_GET_SIZE(rcv);
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if ((n = moo_utf8_to_uc(utf8, size, &uch)) == 0)
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{
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/* invalid sequence */
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moo_seterrnum (moo, MOO_EECERR);
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return MOO_PF_FAILURE;
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}
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else if (n >= size)
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{
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/* incomplete sequence */
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moo_seterrnum (moo, MOO_EECMORE);
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return MOO_PF_FAILURE;
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}
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MOO_STACK_SETRET(moo, nargs, MOO_CHAR_TO_OOP(uch));
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return MOO_PF_SUCCESS;
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}
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moo_pfrc_t moo_pf_uc_to_utf8 (moo_t* moo, moo_mod_t* mod, moo_ooi_t nargs)
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{
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MOO_STACK_SETRET (moo, nargs, moo->_nil);
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/* TODO: */
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return MOO_PF_SUCCESS;
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}
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