removed the containing subdir

lib/pf-utf8.c

@@ -0,0 +1,96 @@
+/*
+ * $Id$
+ *
+    Copyright (c) 2014-2019 Chung, Hyung-Hwan. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAfRRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#include "moo-prv.h"
+
+
+moo_pfrc_t moo_pf_utf8_seqlen (moo_t* moo, moo_mod_t* mod, moo_ooi_t nargs)
+{
+	moo_oop_t rcv;
+	moo_uch_t uch;
+	const moo_bch_t* utf8;
+	moo_oow_t size;
+	int n;
+
+	/* the receiver should be a byte array or the like.  */
+	rcv = MOO_STACK_GETRCV(moo, nargs);
+	MOO_PF_CHECK_RCV (moo, moo_iskindof(moo, rcv, moo->_byte_array));
+
+	utf8 = (const moo_bch_t*)MOO_OBJ_GET_BYTE_SLOT(rcv);
+	size = MOO_OBJ_GET_SIZE(rcv);
+
+/* TODO: do i need to check the first byte and return bytes required regardless of the available length? */
+	if ((n = moo_utf8_to_uc(utf8, size, &uch)) == 0)
+	{
+		/* invalid sequence */
+		moo_seterrnum (moo, MOO_EECERR);
+		return MOO_PF_FAILURE;
+	}
+
+	MOO_STACK_SETRET (moo, nargs, MOO_SMOOI_TO_OOP(n));
+	return MOO_PF_SUCCESS;
+}
+
+moo_pfrc_t moo_pf_utf8_to_uc (moo_t* moo, moo_mod_t* mod, moo_ooi_t nargs)
+{
+	moo_oop_t rcv;
+	moo_uch_t uch;
+	const moo_bch_t* utf8;
+	moo_oow_t size;
+	int n;
+
+	/* the receiver should be a byte array or the like.  */
+	rcv = MOO_STACK_GETRCV(moo, nargs);
+	MOO_PF_CHECK_RCV (moo, moo_iskindof(moo, rcv, moo->_byte_array));
+
+/* TODO: accept offset and size */
+	utf8 = (const moo_bch_t*)MOO_OBJ_GET_BYTE_SLOT(rcv);
+	size = MOO_OBJ_GET_SIZE(rcv);
+
+	if ((n = moo_utf8_to_uc(utf8, size, &uch)) == 0)
+	{
+		/* invalid sequence */
+		moo_seterrnum (moo, MOO_EECERR);
+		return MOO_PF_FAILURE;
+	}
+	else if (n >= size)
+	{
+		/* incomplete sequence */
+		moo_seterrnum (moo, MOO_EECMORE);
+		return MOO_PF_FAILURE;
+	}
+
+	MOO_STACK_SETRET(moo, nargs, MOO_CHAR_TO_OOP(uch));
+	return MOO_PF_SUCCESS;
+}
+
+moo_pfrc_t moo_pf_uc_to_utf8 (moo_t* moo, moo_mod_t* mod, moo_ooi_t nargs)
+{
+	MOO_STACK_SETRET (moo, nargs, moo->_nil);
+	/* TODO: */
+	return MOO_PF_SUCCESS;
+}