added qse_cmgr_t. still in primitive stage.

added qse_tio_getcmgr()/qse_tio_setcmgr()
added qse_pio_getcmgr()/qse_pio_setcmgr()
added qse_fio_getcmgr()/qse_fio_setcmgr()
added qse_fio_getcmgr()/qse_fio_setcmgr()
added mbs/wcs conversion functions using cmgr

qse/cmd/awk/awk.c

@@ -854,7 +854,7 @@ static int awk_main (int argc, qse_char_t* argv[])
 	/* TODO: change it to support multiple source files */
 	qse_awk_parsestd_in_t psin;
 	qse_awk_parsestd_out_t psout;
-	qse_mmgr_t* mmgr = QSE_NULL;
+	qse_mmgr_t* mmgr = QSE_MMGR_GETDFL();
 
 	memset (&arg, 0, QSE_SIZEOF(arg));
 

qse/cmd/sed/sed.c

@@ -519,7 +519,7 @@ static void trace_exec (qse_sed_t* sed, qse_sed_exec_op_t op, const qse_sed_cmd_
 
 int sed_main (int argc, qse_char_t* argv[])
 {
-	qse_mmgr_t* mmgr = QSE_NULL;
+	qse_mmgr_t* mmgr = QSE_MMGR_GETDFL();
 	qse_sed_t* sed = QSE_NULL;
 	qse_fs_t* fs = QSE_NULL;
 	qse_size_t script_count;

qse/include/qse/cmn/fio.h

@@ -200,6 +200,22 @@ void qse_fio_fini (
 	qse_fio_t* fio
 );
 
+/**
+ * The qse_fio_getcmgr() funcfion returns the current character manager.
+ * It returns #QSE_NULL is @a fio is not opened with #QSE_FIO_TEXT.
+ */
+qse_cmgr_t* qse_fio_getcmgr (
+	qse_fio_t* fio
+);
+
+/**
+ * The qse_fio_setcmgr() funcfion changes the character manager to @a cmgr.
+ * The character manager is used only if @a fio is opened with #QSE_FIO_TEXT.
+ */
+void qse_fio_setcmgr (
+	qse_fio_t*  fio,
+	qse_cmgr_t* cmgr
+);
 
 /**
  * The qse_fio_gethandle() function returns the native file handle.

qse/include/qse/cmn/pio.h

@@ -77,7 +77,6 @@ enum qse_pio_flag_t
 	QSE_PIO_DROPERR    = (1 << 18)
 };
 
-
 /**
  * The qse_pio_hid_t type defines pipe IDs established to a child process.
  */
@@ -280,6 +279,25 @@ const qse_char_t* qse_pio_geterrmsg (
 	qse_pio_t* pio /**< pio object */
 );
 
+/**
+ * The qse_pio_getcmgr() function returns the current character manager.
+ * It returns #QSE_NULL is @a pio is not opened with #QSE_PIO_TEXT.
+ */
+qse_cmgr_t* qse_pio_getcmgr (
+	qse_pio_t*    pio,
+	qse_pio_hid_t hid
+);
+
+/**
+ * The qse_pio_setcmgr() function changes the character manager to @a cmgr.
+ * The character manager is used only if @a pio is opened with #QSE_PIO_TEXT.
+ */
+void qse_pio_setcmgr (
+	qse_pio_t*    pio,
+	qse_pio_hid_t hid,
+	qse_cmgr_t*   cmgr
+);
+
 /**
  * The qse_pio_gethandle() function gets a pipe handle.
  * @return pipe handle
@@ -303,9 +321,9 @@ qse_pio_pid_t qse_pio_getchild (
  */
 qse_ssize_t qse_pio_read (
 	qse_pio_t*    pio,  /**< pio object */
+	qse_pio_hid_t hid,  /**< handle ID */
 	void*         buf,  /**< buffer to fill */
-	qse_size_t    size, /**< buffer size */
+	qse_size_t    size  /**< buffer size */
-	qse_pio_hid_t hid   /**< handle ID */
 );
 
 /**
@@ -316,9 +334,9 @@ qse_ssize_t qse_pio_read (
  */
 qse_ssize_t qse_pio_write (
 	qse_pio_t*    pio,   /**< pio object */
+	qse_pio_hid_t hid,   /**< handle ID */
 	const void*   data,  /**< data to write */
-	qse_size_t    size,  /**< data size */
+	qse_size_t    size   /**< data size */
-	qse_pio_hid_t hid    /**< handle ID */
 );
 
 /**

qse/include/qse/cmn/sio.h

@@ -144,6 +144,15 @@ qse_sio_errnum_t qse_sio_geterrnum (
 	qse_sio_t* sio
 );
 
+qse_cmgr_t* qse_sio_getcmgr (
+	qse_sio_t* sio
+);
+
+void qse_sio_setcmgr (
+	qse_sio_t*  sio,
+	qse_cmgr_t* cmgr
+);
+
 qse_sio_hnd_t qse_sio_gethandle (
 	qse_sio_t* sio
 );

qse/include/qse/cmn/tio.h

@@ -111,6 +111,7 @@ struct qse_tio_t
 	QSE_DEFINE_COMMON_FIELDS (tio)
 	qse_tio_errnum_t errnum;
 	int              flags; 
+	qse_cmgr_t*      cmgr;
 
 	qse_tio_io_t     in;
 	qse_tio_io_t     out;
@@ -176,6 +177,21 @@ const qse_char_t* qse_tio_geterrmsg (
 	qse_tio_t* tio
 );
 
+/**
+ * The qse_tio_getcmgr() function returns the character manager.
+ */
+qse_cmgr_t* qse_tio_getcmgr (
+	qse_tio_t* tio
+);
+
+/**
+ * The qse_tio_setcmgr() function changes the character manager.
+ */
+void qse_tio_setcmgr (
+	qse_tio_t*  tio,
+	qse_cmgr_t* cmgr
+);
+
 /**
  * The qse_tio_attachin() function attachs an input handler .
  * @return 0 on success, -1 on failure

qse/include/qse/types.h

@@ -716,6 +716,30 @@ struct qse_mmgr_t
 };
 typedef struct qse_mmgr_t qse_mmgr_t;
 
+
+typedef qse_size_t (*qse_cmgr_mbtowc_t) (
+	const qse_mchar_t* mb, 
+	qse_size_t         size,
+	qse_wchar_t*       wc
+);
+
+typedef qse_size_t (*qse_cmgr_wctomb_t) (
+	qse_wchar_t  wc,
+	qse_mchar_t* mb,
+	qse_size_t   size
+);
+
+/**
+ * The qse_cmgr_t type defines the interface to various character handling.
+ */
+struct qse_cmgr_t
+{
+	qse_cmgr_mbtowc_t mbtowc;
+	qse_cmgr_wctomb_t wctomb;
+};
+
+typedef struct qse_cmgr_t qse_cmgr_t;
+
 /**
  * The #qse_foff_t type defines an integer that can represent a file offset.
  * Depending on your system, it's defined to one of #qse_int64_t, #qse_int32_t,

qse/lib/awk/StdAwk.cpp

@@ -224,12 +224,12 @@ int StdAwk::closePipe (Pipe& io)
 
 StdAwk::ssize_t StdAwk::readPipe (Pipe& io, char_t* buf, size_t len) 
 { 
-	return qse_pio_read ((qse_pio_t*)io.getHandle(), buf, len, QSE_PIO_OUT);
+	return qse_pio_read ((qse_pio_t*)io.getHandle(), QSE_PIO_OUT, buf, len);
 }
 
 StdAwk::ssize_t StdAwk::writePipe (Pipe& io, const char_t* buf, size_t len) 
 { 
-	return qse_pio_write ((qse_pio_t*)io.getHandle(), buf, len, QSE_PIO_IN);
+	return qse_pio_write ((qse_pio_t*)io.getHandle(), QSE_PIO_IN, buf, len);
 }
 
 int StdAwk::flushPipe (Pipe& io) 

qse/lib/awk/std.c

@@ -863,9 +863,7 @@ static qse_ssize_t awk_rio_pipe (
 		{
 			return qse_pio_read (
 				(qse_pio_t*)riod->handle,
-				data,	
+				QSE_PIO_OUT, data, size
-				size,
-				QSE_PIO_OUT
 			);
 		}
 
@@ -873,9 +871,7 @@ static qse_ssize_t awk_rio_pipe (
 		{
 			return qse_pio_write (
 				(qse_pio_t*)riod->handle,
-				data,	
+				QSE_PIO_IN, data, size
-				size,
-				QSE_PIO_IN
 			);
 		}
 

qse/lib/cmn/Makefile.am

@@ -66,6 +66,7 @@ libqsecmn_la_SOURCES = \
 	str-fnmat.c \
 	str-incl.c \
 	str-len.c \
+	str-mbwc.c \
 	str-pac.c \
 	str-pbrk.c \
 	str-put.c \

qse/lib/cmn/Makefile.in

@@ -82,12 +82,13 @@ am_libqsecmn_la_OBJECTS = alg-rand.lo alg-search.lo alg-sort.lo \
 	rbt.lo rex.lo sio.lo sll.lo stdio.lo str-beg.lo str-cat.lo \
 	str-chr.lo str-cnv.lo str-cmp.lo str-cpy.lo str-del.lo \
 	str-dup.lo str-dynm.lo str-dynw.lo str-end.lo str-excl.lo \
-	str-fcpy.lo str-fnmat.lo str-incl.lo str-len.lo str-pac.lo \
+	str-fcpy.lo str-fnmat.lo str-incl.lo str-len.lo str-mbwc.lo \
-	str-pbrk.lo str-put.lo str-rev.lo str-rot.lo str-set.lo \
+	str-pac.lo str-pbrk.lo str-put.lo str-rev.lo str-rot.lo \
-	str-spl.lo str-spn.lo str-str.lo str-subst.lo str-tok.lo \
+	str-set.lo str-spl.lo str-spn.lo str-str.lo str-subst.lo \
-	str-trm.lo str-word.lo time.lo tio.lo tio-get.lo tio-put.lo \
+	str-tok.lo str-trm.lo str-word.lo time.lo tio.lo tio-get.lo \
-	tre.lo tre-ast.lo tre-compile.lo tre-match-backtrack.lo \
+	tio-put.lo tre.lo tre-ast.lo tre-compile.lo \
-	tre-match-parallel.lo tre-parse.lo tre-stack.lo utf8.lo xma.lo
+	tre-match-backtrack.lo tre-match-parallel.lo tre-parse.lo \
+	tre-stack.lo utf8.lo xma.lo
 libqsecmn_la_OBJECTS = $(am_libqsecmn_la_OBJECTS)
 libqsecmn_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
 	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
@@ -335,6 +336,7 @@ libqsecmn_la_SOURCES = \
 	str-fnmat.c \
 	str-incl.c \
 	str-len.c \
+	str-mbwc.c \
 	str-pac.c \
 	str-pbrk.c \
 	str-put.c \
@@ -492,6 +494,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/str-fnmat.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/str-incl.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/str-len.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/str-mbwc.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/str-pac.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/str-pbrk.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/str-put.Plo@am__quote@

qse/lib/cmn/fio.c

@@ -551,6 +551,16 @@ void qse_fio_fini (qse_fio_t* fio)
 	}
 }
 
+qse_cmgr_t* qse_fio_getcmgr (qse_fio_t* fio)
+{
+	return fio->tio? qse_tio_getcmgr (fio->tio): QSE_NULL;
+}
+
+void qse_fio_setcmgr (qse_fio_t* fio, qse_cmgr_t* cmgr)
+{
+	if (fio->tio) qse_tio_setcmgr (fio->tio, cmgr);
+}
+
 qse_fio_hnd_t qse_fio_gethandle (qse_fio_t* fio)
 {
 	return fio->handle;

qse/lib/cmn/pio.c

@@ -967,6 +967,7 @@ int qse_pio_init (
 		if (flags & QSE_PIO_IGNOREMBWCERR) topt |= QSE_TIO_IGNOREMBWCERR;
 		if (flags & QSE_PIO_NOAUTOFLUSH) topt |= QSE_TIO_NOAUTOFLUSH;
 
+		QSE_ASSERT (QSE_COUNTOF(tio) == QSE_COUNTOF(pio->pin));
 		for (i = 0; i < QSE_COUNTOF(tio); i++)
 		{
 			int r;
@@ -979,8 +980,10 @@ int qse_pio_init (
 			}
 
 			r = (i == QSE_PIO_IN)?
-				qse_tio_attachout (tio[i], pio_output, &pio->pin[i], QSE_NULL, 4096):
+				qse_tio_attachout (
-				qse_tio_attachin (tio[i], pio_input, &pio->pin[i], QSE_NULL, 4096);
+					tio[i], pio_output, &pio->pin[i], QSE_NULL, 4096):
+				qse_tio_attachin (
+					tio[i], pio_input, &pio->pin[i], QSE_NULL, 4096);
 
 			if (r <= -1) goto oops;
 
@@ -1090,6 +1093,17 @@ const qse_char_t* qse_pio_geterrmsg (qse_pio_t* pio)
 		QSE_COUNTOF(__errstr) - 1: pio->errnum];
 }
 
+qse_cmgr_t* qse_pio_getcmgr (qse_pio_t* pio, qse_pio_hid_t hid)
+{
+	return pio->pin[hid].tio? 
+		qse_tio_getcmgr(pio->pin[hid].tio): QSE_NULL;
+}
+
+void qse_pio_setcmgr (qse_pio_t* pio, qse_pio_hid_t hid, qse_cmgr_t* cmgr)
+{
+	if (pio->pin[hid].tio) qse_tio_setcmgr (pio->pin[hid].tio, cmgr);
+}
+
 qse_pio_hnd_t qse_pio_gethandle (qse_pio_t* pio, qse_pio_hid_t hid)
 {
 	return pio->pin[hid].handle;
@@ -1190,7 +1204,7 @@ reread:
 }
 
 qse_ssize_t qse_pio_read (
-	qse_pio_t* pio, void* buf, qse_size_t size, qse_pio_hid_t hid)
+	qse_pio_t* pio, qse_pio_hid_t hid, void* buf, qse_size_t size)
 {
 	if (pio->pin[hid].tio == QSE_NULL) 
 		return pio_read (pio, buf, size, pio->pin[hid].handle);
@@ -1285,8 +1299,8 @@ rewrite:
 }
 
 qse_ssize_t qse_pio_write (
-	qse_pio_t* pio, const void* data, qse_size_t size,
+	qse_pio_t* pio, qse_pio_hid_t hid,
-	qse_pio_hid_t hid)
+	const void* data, qse_size_t size)
 {
 	if (pio->pin[hid].tio == QSE_NULL)
 		return pio_write (pio, data, size, pio->pin[hid].handle);
@@ -1547,7 +1561,8 @@ int qse_pio_kill (qse_pio_t* pio)
 #endif
 }
 
-static qse_ssize_t pio_input (qse_tio_cmd_t cmd, void* arg, void* buf, qse_size_t size)
+static qse_ssize_t pio_input (
+	qse_tio_cmd_t cmd, void* arg, void* buf, qse_size_t size)
 {
 	qse_pio_pin_t* pin = (qse_pio_pin_t*)arg;
 	QSE_ASSERT (pin != QSE_NULL);
@@ -1562,7 +1577,8 @@ static qse_ssize_t pio_input (qse_tio_cmd_t cmd, void* arg, void* buf, qse_size_
 	return 0;
 }
 
-static qse_ssize_t pio_output (qse_tio_cmd_t cmd, void* arg, void* buf, qse_size_t size)
+static qse_ssize_t pio_output (
+	qse_tio_cmd_t cmd, void* arg, void* buf, qse_size_t size)
 {
 	qse_pio_pin_t* pin = (qse_pio_pin_t*)arg;
 	QSE_ASSERT (pin != QSE_NULL);

qse/lib/cmn/sio.c

@@ -140,6 +140,16 @@ void qse_sio_fini (qse_sio_t* sio)
 	qse_fio_fini (&sio->fio);
 }
 
+qse_cmgr_t* qse_sio_getcmgr (qse_sio_t* sio)
+{
+	return qse_tio_getcmgr (&sio->tio);
+}
+
+void qse_sio_setcmgr (qse_sio_t* sio, qse_cmgr_t* cmgr)
+{
+	qse_tio_setcmgr (&sio->tio, cmgr);
+}
+
 qse_sio_errnum_t qse_sio_geterrnum (qse_sio_t* sio)
 {
 	return QSE_TIO_ERRNUM(&sio->tio);

qse/lib/cmn/str-cnv.c

@@ -134,12 +134,10 @@ qse_ulong_t qse_strxtoulong (const qse_char_t* str, qse_size_t len)
 	return v;
 }
 
-
 /*
  * TODO: fix wrong mbstate handling 
  */
 
-
 int qse_mbstowcs (
 	const qse_mchar_t* mbs, qse_size_t* mbslen,
 	qse_wchar_t* wcs, qse_size_t* wcslen)

qse/lib/cmn/str-mbwc.c

@@ -0,0 +1,437 @@
+/*
+ * $Id: str-cnv.c 556 2011-08-31 15:43:46Z hyunghwan.chung $
+ *
+    Copyright 2006-2011 Chung, Hyung-Hwan.
+    This file is part of QSE.
+
+    QSE 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 3 of 
+    the License, or (at your option) any later version.
+
+    QSE 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 QSE. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <qse/cmn/str.h>
+#include "mem.h"
+
+int qse_mbstowcswithcmgr (
+	const qse_mchar_t* mbs, qse_size_t* mbslen,
+	qse_wchar_t* wcs, qse_size_t* wcslen, qse_cmgr_t* cmgr)
+{
+	const qse_mchar_t* mp;
+	qse_size_t mlen, wlen;
+	int n;
+
+	for (mp = mbs; *mp != QSE_MT('\0'); mp++);
+
+	mlen = mp - mbs; wlen = *wcslen;
+	n = qse_mbsntowcsnwithcmgr (mbs, &mlen, wcs, &wlen, cmgr);
+	if (wcs)
+	{
+		if (wlen < *wcslen) wcs[wlen] = QSE_WT('\0');
+		else n = -2; /* buffer too small */
+	}
+	*mbslen = mlen; *wcslen = wlen;
+
+	return n;
+}
+
+int qse_mbsntowcsnwithcmgr (
+	const qse_mchar_t* mbs, qse_size_t* mbslen,
+	qse_wchar_t* wcs, qse_size_t* wcslen, qse_cmgr_t* cmgr)
+{
+	const qse_mchar_t* p;
+	int ret = 0;
+	qse_size_t mlen;
+
+	if (wcs)
+	{
+		qse_wchar_t* q, * qend;
+
+		p = mbs;
+		q = wcs;
+		qend = wcs + *wcslen;
+		mlen = *mbslen;
+
+		while (mlen > 0)
+		{
+			qse_size_t n;
+
+			if (q >= qend)
+			{
+				/* buffer too small */
+				ret = -2;
+				break;
+			}
+
+			n = cmgr->mbtowc (p, mlen, q);
+			if (n == 0)
+			{
+				/* invalid sequence */
+				ret = -1;
+				break;
+			}
+			if (n > mlen)
+			{
+				/* incomplete sequence */
+				ret = -3;
+				break;
+			}
+
+			q++;
+			p += n;
+			mlen -= n;
+		}
+
+		*wcslen = q - wcs;
+		*mbslen = p - mbs;
+	}
+	else
+	{
+		qse_wchar_t w;
+		qse_size_t wlen = 0;
+
+		p = mbs;
+		mlen = *mbslen;
+
+		while (mlen > 0)
+		{
+			qse_size_t n;
+
+			n = cmgr->mbtowc (p, mlen, &w);
+			if (n == 0)
+			{
+				/* invalid sequence */
+				ret = -1;
+				break;
+			}
+			if (n > mlen)
+			{
+				/* incomplete sequence */
+				ret = -3;
+				break;
+			}
+
+			p += n;
+			mlen -= n;
+			wlen += 1;
+		}
+
+		*wcslen = wlen;
+		*mbslen = p - mbs;
+	}
+
+	return ret;
+}
+
+int qse_mbsntowcsnuptowithcmgr (
+	const qse_mchar_t* mbs, qse_size_t* mbslen,
+	qse_wchar_t* wcs, qse_size_t* wcslen, qse_wchar_t stopper, qse_cmgr_t* cmgr)
+{
+	const qse_mchar_t* p;
+	int ret = 0;
+	qse_size_t mlen;
+
+	qse_wchar_t w;
+	qse_size_t wlen = 0;
+	qse_wchar_t* wend;
+
+	p = mbs;
+	mlen = *mbslen;
+
+	if (wcs) wend = wcs + *wcslen;
+
+	/* since it needs to break when a stopper is met,
+	 * i can't perform bulky conversion using the buffer
+	 * provided. so conversion is conducted character by
+	 * character */
+	while (mlen > 0)
+	{
+		qse_size_t n;
+
+		n = cmgr->mbtowc (p, mlen, &w);
+		if (n == 0)
+		{
+			/* invalid sequence */
+			ret = -1;
+			break;
+		}
+		if (n > mlen)
+		{
+			/* incomplete sequence */
+			ret = -3;
+			break;
+		}
+
+		if (wcs) 
+		{
+			if (wcs >= wend) break;
+			*wcs++ = w;
+		}
+
+		p += n;
+		mlen -= n;
+		wlen += 1;
+
+		if (w == stopper) break;
+	}
+
+	*wcslen = wlen;
+	*mbslen = p - mbs;
+
+	return ret;
+}
+
+qse_wchar_t* qse_mbstowcsdupwithcmgr (
+	const qse_mchar_t* mbs, qse_mmgr_t* mmgr, qse_cmgr_t* cmgr)
+{
+	qse_size_t mbslen, wcslen;
+	qse_wchar_t* wcs;
+
+	if (qse_mbstowcswithcmgr (mbs, &mbslen, QSE_NULL, &wcslen, cmgr) <= -1) return QSE_NULL;
+
+	wcslen++; /* for terminating null */
+	wcs = QSE_MMGR_ALLOC (mmgr, wcslen * QSE_SIZEOF(*wcs));	
+	if (wcs == QSE_NULL) return QSE_NULL;
+
+	qse_mbstowcswithcmgr (mbs, &mbslen, wcs, &wcslen, cmgr);
+	return wcs;
+}
+
+qse_wchar_t* qse_mbsatowcsdupwithcmgr (
+	const qse_mchar_t* mbs[], qse_mmgr_t* mmgr, qse_cmgr_t* cmgr)
+{
+	qse_wchar_t* buf, * ptr;
+	qse_size_t i;
+	qse_size_t capa = 0;
+	qse_size_t wl, ml;
+
+	QSE_ASSERT (mmgr != QSE_NULL);
+
+	for (i = 0; mbs[i]; i++) 
+	{
+		if (qse_mbstowcswithcmgr (mbs[i], &ml, QSE_NULL, &wl, cmgr) <= -1) return QSE_NULL;
+		capa += wl;
+	}
+
+	buf = (qse_wchar_t*) QSE_MMGR_ALLOC (
+		mmgr, (capa + 1) * QSE_SIZEOF(*buf));
+	if (buf == QSE_NULL) return QSE_NULL;
+
+	ptr = buf;
+	for (i = 0; mbs[i]; i++) 
+	{
+		wl = capa + 1;
+		qse_mbstowcswithcmgr (mbs[i], &ml, ptr, &wl, cmgr);
+		ptr += wl;
+		capa -= wl;
+	}
+
+	return buf;
+}
+
+int qse_wcstombswithcmgr (
+	const qse_wchar_t* wcs, qse_size_t* wcslen,
+	qse_mchar_t* mbs, qse_size_t* mbslen, qse_cmgr_t* cmgr)
+{
+	const qse_wchar_t* p = wcs;
+	int ret = 0;
+
+	if (mbs)
+	{
+		qse_size_t rem = *mbslen;
+
+		while (*p != QSE_WT('\0'))
+		{
+			qse_size_t n;
+
+			if (rem <= 0)
+			{
+				ret = -2;
+				break;
+			}
+			
+			n = cmgr->wctomb (*p, mbs, rem);
+			if (n == 0) 
+			{
+				ret = -1;
+				break; /* illegal character */
+			}
+			if (n > rem) 
+			{
+				ret = -2;
+				break; /* buffer too small */
+			}
+
+			mbs += n; rem -= n; p++;
+		}
+
+		/* update mbslen to the length of the mbs string converted excluding
+		 * terminating null */
+		*mbslen -= rem; 
+
+		/* null-terminate the multibyte sequence if it has sufficient space */
+		if (rem > 0) *mbs = QSE_MT('\0');
+		else 
+		{
+			/* if ret is -2 and wcs[wcslen] == QSE_WT('\0'), 
+			 * this means that the mbs buffer was lacking one
+			 * slot for the terminating null */
+			ret = -2; /* buffer too small */
+		}
+	}
+	else
+	{
+		qse_mchar_t mbsbuf[QSE_MBLEN_MAX];
+		qse_size_t mlen = 0;
+
+		while (*p != QSE_WT('\0'))
+		{
+			qse_size_t n;
+
+			n = cmgr->wctomb (*p, mbsbuf, QSE_COUNTOF(mbsbuf));
+			if (n == 0) 
+			{
+				ret = -1;
+				break; /* illegal character */
+			}
+
+			/* it assumes that mbs is large enough to hold a character */
+			QSE_ASSERT (n <= QSE_COUNTOF(mbs));
+
+			p++; mlen += n;
+		}
+
+		/* this length holds the number of resulting multi-byte characters 
+		 * excluding the terminating null character */
+		*mbslen = mlen;
+	}
+
+	*wcslen = p - wcs;  /* the number of wide characters handled. */
+
+	return ret;	
+}
+
+int qse_wcsntombsnwithcmgr (
+	const qse_wchar_t* wcs, qse_size_t* wcslen,
+	qse_mchar_t* mbs, qse_size_t* mbslen, qse_cmgr_t* cmgr)
+{
+	const qse_wchar_t* p = wcs;
+	const qse_wchar_t* end = wcs + *wcslen;
+	int ret = 0; 
+
+	if (mbs)
+	{
+		qse_size_t rem = *mbslen;
+
+		while (p < end) 
+		{
+			qse_size_t n;
+
+			if (rem <= 0)
+			{
+				ret = -2; /* buffer too small */
+				break;
+			}
+
+			n = cmgr->wctomb (*p, mbs, rem);
+			if (n == 0) 
+			{
+				ret = -1;
+				break; /* illegal character */
+			}
+			if (n > rem) 
+			{
+				ret = -2; /* buffer too small */
+				break;
+			}
+			mbs += n; rem -= n; p++;
+		}
+
+		*mbslen -= rem; 
+	}
+	else
+	{
+		qse_mchar_t mbsbuf[QSE_MBLEN_MAX];
+		qse_size_t mlen = 0;
+
+		while (p < end)
+		{
+			qse_size_t n;
+
+			n = cmgr->wctomb (*p, mbsbuf, QSE_COUNTOF(mbsbuf));
+			if (n == 0) 
+			{
+				ret = -1;
+				break; /* illegal character */
+			}
+
+			/* it assumes that mbs is large enough to hold a character */
+			QSE_ASSERT (n <= QSE_COUNTOF(mbsbuf));
+
+			p++; mlen += n;
+		}
+
+		/* this length excludes the terminating null character. 
+		 * this function doesn't event null-terminate the result. */
+		*mbslen = mlen;
+	}
+
+	*wcslen = p - wcs;
+
+	return ret;
+}
+
+qse_mchar_t* qse_wcstombsdupwithcmgr (const qse_wchar_t* wcs, qse_mmgr_t* mmgr, qse_cmgr_t* cmgr)
+{
+	qse_size_t wcslen, mbslen;
+	qse_mchar_t* mbs;
+
+	if (qse_wcstombswithcmgr (wcs, &wcslen, QSE_NULL, &mbslen, cmgr) <= -1) return QSE_NULL;
+
+	mbslen++; /* for the terminating null character */
+
+	mbs = QSE_MMGR_ALLOC (mmgr, mbslen * QSE_SIZEOF(*mbs));	
+	if (mbs == QSE_NULL) return QSE_NULL;
+
+	qse_wcstombswithcmgr (wcs, &wcslen, mbs, &mbslen, cmgr);
+	return mbs;
+}
+
+qse_mchar_t* qse_wcsatombsdupwithcmgr (const qse_wchar_t* wcs[], qse_mmgr_t* mmgr, qse_cmgr_t* cmgr)
+{
+	qse_mchar_t* buf, * ptr;
+	qse_size_t i;
+	qse_size_t wl, ml;
+	qse_size_t capa = 0;
+
+	QSE_ASSERT (mmgr != QSE_NULL);
+
+	for (i = 0; wcs[i]; i++) 
+	{
+		if (qse_wcstombswithcmgr (wcs[i], &wl, QSE_NULL, &ml, cmgr) <= -1) return QSE_NULL;
+		capa += ml;
+	}
+
+	buf = (qse_mchar_t*) QSE_MMGR_ALLOC (
+		mmgr, (capa + 1) * QSE_SIZEOF(*buf));
+	if (buf == QSE_NULL) return QSE_NULL;
+
+	ptr = buf;
+	for (i = 0; wcs[i]; i++) 
+	{
+		ml = capa + 1;
+		qse_wcstombswithcmgr (wcs[i], &wl, ptr, &ml, cmgr);
+		ptr += ml;
+		capa -= ml;
+	}
+
+	return buf;
+}

qse/lib/cmn/tio-get.c

@@ -132,9 +132,9 @@ static QSE_INLINE qse_ssize_t tio_read_widechars (
 	mlen = tio->inbuf_len - tio->inbuf_cur;
 	wlen = bufsize;
 
-	x = qse_mbsntowcsnupto (
+	x = qse_mbsntowcsnuptowithcmgr (
 		&tio->in.buf.ptr[tio->inbuf_cur],
-		&mlen, buf, &wlen, QSE_WT('\n'));
+		&mlen, buf, &wlen, QSE_WT('\n'), tio->cmgr);
 	tio->inbuf_cur += mlen;
 
 	if (x == -3)

qse/lib/cmn/tio-put.c

@@ -142,8 +142,8 @@ qse_ssize_t qse_tio_writewcs (
 		capa = tio->out.buf.capa - tio->outbuf_len;
 		wcnt = xwlen; mcnt = capa;
 
-		n = qse_wcsntombsn (
+		n = qse_wcsntombsnwithcmgr (
-			wptr, &wcnt, &tio->out.buf.ptr[tio->outbuf_len], &mcnt);
+			wptr, &wcnt, &tio->out.buf.ptr[tio->outbuf_len], &mcnt, tio->cmgr);
 		tio->outbuf_len += mcnt;
 
 		if (n == -2)

qse/lib/cmn/tio.c

@@ -19,6 +19,7 @@
  */
 
 #include <qse/cmn/tio.h>
+#include <qse/cmn/utf8.h> 
 #include "mem.h"
 
 QSE_IMPLEMENT_COMMON_FUNCTIONS (tio)
@@ -51,9 +52,19 @@ int qse_tio_close (qse_tio_t* tio)
 
 int qse_tio_init (qse_tio_t* tio, qse_mmgr_t* mmgr, int flags)
 {
+	/* TODO: set this default_cmgr differently depending on
+	 *       build options and platforms */
+	static qse_cmgr_t default_cmgr =
+	{
+		qse_utf8touc,
+		qse_uctoutf8
+	};
+
 	QSE_MEMSET (tio, 0, QSE_SIZEOF(*tio));
 
 	tio->mmgr = mmgr;
+	tio->cmgr = &default_cmgr;
+
 	/* mask off internal bits when storing the flags for safety */
 	tio->flags = flags & ~(QSE_TIO_DYNINBUF | QSE_TIO_DYNOUTBUF);
 
@@ -111,6 +122,16 @@ const qse_char_t* qse_tio_geterrmsg (qse_tio_t* tio)
 		QSE_COUNTOF(__errmsg) - 1: tio->errnum];
 }
 
+qse_cmgr_t* qse_tio_getcmgr (qse_tio_t* tio)
+{
+	return tio->cmgr;
+}
+
+void qse_tio_setcmgr (qse_tio_t* tio, qse_cmgr_t* cmgr)
+{
+	tio->cmgr = cmgr;
+}
+
 int qse_tio_attachin (
 	qse_tio_t* tio, qse_tio_io_fun_t input, void* arg,
 	qse_mchar_t* bufptr, qse_size_t bufcapa)

qse/lib/net/httpd_task.c

@@ -955,10 +955,9 @@ qse_printf (QSE_T("READING CHUNKED MODE...\n"));
 	 /* <- can i make it non-block?? or use select??? pio_tryread()? */
 
 			n = qse_pio_read (
-				cgi->pio, 
+				cgi->pio, QSE_PIO_OUT,
 				&cgi->buf[cgi->buflen + QSE_SIZEOF(chunklen) - 1], 
-				count - extra,
+				count - extra
-				QSE_PIO_OUT
 			);
 			if (n <= -1)
 			{
@@ -994,10 +993,9 @@ qse_printf (QSE_T("READING CHUNKED MODE...\n"));
 	{
 qse_printf (QSE_T("READING IN NON-CHUNKED MODE...\n"));
 		n = qse_pio_read (
-			cgi->pio, 
+			cgi->pio, QSE_PIO_OUT,
 			&cgi->buf[cgi->buflen], 
-			QSE_SIZEOF(cgi->buf) - cgi->buflen,
+			QSE_SIZEOF(cgi->buf) - cgi->buflen
-			QSE_PIO_OUT
 		);
 		if (n <= -1)
 		{
@@ -1088,10 +1086,9 @@ static int task_main_cgi_2 (
 qse_printf (QSE_T("[cgi_2 ]\n"));
 	 /* <- can i make it non-block?? or use select??? pio_tryread()? */
 	n = qse_pio_read (
-		cgi->pio, 
+		cgi->pio, QSE_PIO_OUT,
 		&cgi->buf[cgi->buflen], 
-		QSE_SIZEOF(cgi->buf) - cgi->buflen,
+		QSE_SIZEOF(cgi->buf) - cgi->buflen
-		QSE_PIO_OUT
 	);
 	if (n <= -1)
 	{

qse/samples/cmn/pio.c

@@ -47,7 +47,7 @@ static int pio1 (const qse_char_t* cmd, qse_env_t* env, int oflags, qse_pio_hid_
 		qse_ssize_t i;
 
 		/*qse_pio_canread (pio, QSE_PIO_ERR, 1000)*/
-		qse_ssize_t n = qse_pio_read (pio, buf, QSE_SIZEOF(buf), rhid);
+		qse_ssize_t n = qse_pio_read (pio, rhid, buf, QSE_SIZEOF(buf));
 		if (n == 0) break;
 		if (n <= -1)
 		{
@@ -106,7 +106,7 @@ static int pio2 (const qse_char_t* cmd, qse_env_t* env, int oflags, qse_pio_hid_
 		qse_char_t buf[128];
 		qse_ssize_t i;
 
-		qse_ssize_t n = qse_pio_read (pio, buf, QSE_COUNTOF(buf), rhid);
+		qse_ssize_t n = qse_pio_read (pio, rhid, buf, QSE_COUNTOF(buf));
 		if (n == 0) break;
 		if (n < 0)
 		{
@@ -352,7 +352,7 @@ static int test12 (void)
 		while (1)
 		{
 			qse_mchar_t buf[100];
-			qse_ssize_t x = qse_pio_read (pio, buf, QSE_SIZEOF(buf), QSE_PIO_OUT);
+			qse_ssize_t x = qse_pio_read (pio, QSE_PIO_OUT, buf, QSE_SIZEOF(buf));
 			if (x <= 0) break;
 		}