diff --git a/qse/cmd/xli/xli.c b/qse/cmd/xli/xli.c
index 328011de..37381ff8 100644
--- a/qse/cmd/xli/xli.c
+++ b/qse/cmd/xli/xli.c
@@ -402,6 +402,10 @@ static int xli_main (int argc, qse_char_t* argv[])
 		}
 	}
 
+
+/* TODO: qse_xli_writestd??? */
+qse_xli_write (xli, QSE_NULL);
+
 	ret = 0;
 
 oops:
diff --git a/qse/include/qse/xli/xli.h b/qse/include/qse/xli/xli.h
index 4e867fbe..cc42b98c 100644
--- a/qse/include/qse/xli/xli.h
+++ b/qse/include/qse/xli/xli.h
@@ -487,6 +487,9 @@ QSE_EXPORT qse_xli_pair_t* qse_xli_insertpairwithstr (
 	const qse_cstr_t* value
 );
 
+QSE_EXPORT qse_xli_list_t* qse_xli_getroot (
+	qse_xli_t* xli
+);
 
 QSE_EXPORT qse_xli_pair_t* qse_xli_findpairbyname (
 	qse_xli_t*            xli,
diff --git a/qse/lib/xli/read.c b/qse/lib/xli/read.c
index 7ff35eab..17b609a0 100644
--- a/qse/lib/xli/read.c
+++ b/qse/lib/xli/read.c
@@ -25,11 +25,11 @@ static int get_char (qse_xli_t* xli);
 static int get_token (qse_xli_t* xli);
 static int read_list (qse_xli_t* xli, qse_xli_list_t* list);
 
-static int close_stream (qse_xli_t* xli)
+static int close_current_stream (qse_xli_t* xli)
 {
 	qse_ssize_t n;
 
-	n = xli->sio.inf (xli, QSE_XLI_IO_CLOSE, xli->sio.inp, QSE_NULL, 0);
+	n = xli->sio.impl (xli, QSE_XLI_IO_CLOSE, xli->sio.inp, QSE_NULL, 0);
 	if (n <= -1)
 	{
 		if (xli->errnum == QSE_XLI_ENOERR) 
@@ -109,7 +109,7 @@ static int get_char (qse_xli_t* xli)
 
 	if (xli->sio.inp->b.pos >= xli->sio.inp->b.len)
 	{
-		n = xli->sio.inf (
+		n = xli->sio.impl (
 			xli, QSE_XLI_IO_READ, xli->sio.inp,
 			xli->sio.inp->b.buf, QSE_COUNTOF(xli->sio.inp->b.buf)
 		);
@@ -160,17 +160,30 @@ static int skip_spaces (qse_xli_t* xli)
 	return 0;
 }
 
-static int skip_comment (qse_xli_t* xli)
+static int skip_comment (qse_xli_t* xli, qse_xli_tok_t* tok)
 {
 	qse_cint_t c = xli->sio.last.c;
 
 	if (c == QSE_T('#'))
 	{
-		
 		/* skip up to \n */
 		/* TODO: support a different line terminator */
-		do { GET_CHAR_TO (xli, c); }
-		while (c != QSE_T('\n') && c != QSE_CHAR_EOF);
+		qse_str_clear (tok->name);
+
+		do
+		{ 
+			GET_CHAR_TO (xli, c); 
+			if (c == QSE_T('\n') || c == QSE_CHAR_EOF) break;
+#if 0
+			ADD_TOKEN_CHAR (xli, tok, c);
+#endif
+		}
+		while (1);
+
+#if 0
+		if (qse_xli_inserttext (xli, list, QSE_NULL, QSE_STR_PTR(tok->name)) <= -1) return -1;
+#endif
+
 		GET_CHAR (xli); /* eat the new line letter */
 		return 1; /* comment by # */
 	}
@@ -268,7 +281,7 @@ static int end_include (qse_xli_t* xli)
 	/* if it is an included file, close it and
 	 * retry to read a character from an outer file */
 
-	x = xli->sio.inf (
+	x = xli->sio.impl (
 		xli, QSE_XLI_IO_CLOSE, 
 		xli->sio.inp, QSE_NULL, 0);
 
@@ -302,7 +315,7 @@ static int begin_include (qse_xli_t* xli)
 	qse_link_t* link;
 	qse_xli_io_arg_t* arg = QSE_NULL;
 
-	link = (qse_xli_io_arg_t*) qse_xli_callocmem (xli, 
+	link = (qse_link_t*) qse_xli_callocmem (xli, 
 		QSE_SIZEOF(*link) + QSE_SIZEOF(qse_char_t) * (QSE_STR_LEN(xli->tok.name) + 1));
 	if (link == QSE_NULL) goto oops;
 
@@ -320,7 +333,7 @@ static int begin_include (qse_xli_t* xli)
 	/* let the argument's prev point field to the current */
 	arg->prev = xli->sio.inp; 
 
-	if (xli->sio.inf (xli, QSE_XLI_IO_OPEN, arg, QSE_NULL, 0) <= -1)
+	if (xli->sio.impl (xli, QSE_XLI_IO_OPEN, arg, QSE_NULL, 0) <= -1)
 	{
 		if (xli->errnum == QSE_XLI_ENOERR)
 			qse_xli_seterrnum (xli, QSE_XLI_EIOUSR, QSE_NULL); 
@@ -362,8 +375,8 @@ static int get_token_into (qse_xli_t* xli, qse_xli_tok_t* tok)
 retry:
 	do 
 	{
-		if (skip_spaces(xli) <= -1) return -1;
-		if ((n = skip_comment(xli)) <= -1) return -1; 
+		if (skip_spaces (xli) <= -1) return -1;
+		if ((n = skip_comment (xli, tok)) <= -1) return -1; 
 	} 
 	while (n >= 1);
 
@@ -743,13 +756,13 @@ int qse_xli_read (qse_xli_t* xli, qse_xli_io_impl_t io)
 	}
 
 	QSE_MEMSET (&xli->sio, 0, QSE_SIZEOF(xli->sio));
-	xli->sio.inf = io;
+	xli->sio.impl = io;
 	xli->sio.arg.line = 1;
 	xli->sio.arg.colm = 1;
 	xli->sio.inp = &xli->sio.arg;
 	qse_xli_clearsionames (xli);
 
-	n = xli->sio.inf (xli, QSE_XLI_IO_OPEN, xli->sio.inp, QSE_NULL, 0);
+	n = xli->sio.impl (xli, QSE_XLI_IO_OPEN, xli->sio.inp, QSE_NULL, 0);
 	if (n <= -1)
 	{
 		if (xli->errnum == QSE_XLI_ENOERR)
@@ -768,7 +781,7 @@ int qse_xli_read (qse_xli_t* xli, qse_xli_io_impl_t io)
 	}
 
 	QSE_ASSERT (xli->sio.inp == &xli->sio.arg);
-	close_stream (xli);
+	close_current_stream (xli);
 	return 0;
 
 oops:
@@ -780,7 +793,7 @@ oops:
 		qse_xli_io_arg_t* prev;
 
 		/* nothing much to do about a close error */
-		close_stream (xli);
+		close_current_stream (xli);
 
 		prev = xli->sio.inp->prev;
 		QSE_ASSERT (xli->sio.inp->name != QSE_NULL);
@@ -788,6 +801,6 @@ oops:
 		xli->sio.inp = prev;
 	}
 	
-	close_stream (xli);
+	close_current_stream (xli);
 	return -1;
 }
diff --git a/qse/lib/xli/write.c b/qse/lib/xli/write.c
index d6eb5d11..08f0ba66 100644
--- a/qse/lib/xli/write.c
+++ b/qse/lib/xli/write.c
@@ -20,16 +20,117 @@
 
 #include "xli.h"
 
+static int close_current_stream (qse_xli_t* xli)
+{
+	qse_ssize_t n;
+
+	n = xli->wio.impl (xli, QSE_XLI_IO_CLOSE, xli->wio.inp, QSE_NULL, 0);
+	if (n <= -1)
+	{
+		if (xli->errnum == QSE_XLI_ENOERR) 
+			qse_xli_seterrnum (xli, QSE_XLI_EIOUSR, QSE_NULL);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int write_list (qse_xli_t* xli, qse_xli_list_t* list, int depth)
+{
+	qse_xli_atom_t* curatom;
+
+	for (curatom = list->head; curatom; curatom = curatom->next)
+	{
+		switch (curatom->type)
+		{
+			case QSE_XLI_PAIR:
+			{
+				int i;
+				qse_xli_pair_t* pair = (qse_xli_pair_t*)curatom;
+				
+				for (i = 0; i < depth; i++) qse_printf (QSE_T("\t"));
+				qse_printf (QSE_T("%s"), pair->key);
+				if (pair->name) qse_printf (QSE_T(" \"%s\""), pair->name);
+
+				switch (pair->val->type)
+				{
+					case QSE_XLI_NIL:
+						qse_printf (QSE_T(";\n"));
+						break;
+
+					case QSE_XLI_STR:
+					{
+						qse_xli_str_t* str = (qse_xli_str_t*)pair->val;
+						qse_printf (QSE_T(" = \"%.*s\";\n"), (int)str->len, str->ptr);
+						break;	
+					}
+
+					case QSE_XLI_LIST:
+					{
+						qse_printf (QSE_T("{\n"));
+						if (write_list (xli, pair->val, ++depth) <= -1)
+						{
+						}
+						qse_printf (QSE_T("}\n"));
+						break;
+					}
+				}
+				break;
+			}
+
+			case QSE_XLI_TEXT:
+				qse_printf (QSE_T("# %s\n"), ((qse_xli_text_t*)curatom)->ptr);
+				break;
+
+			case QSE_XLI_FILE:
+				/* TODO filename escaping.... */
+				qse_printf (QSE_T("@include \"%s\";\n"),(( qse_xli_file_t*)curatom)->path);
+
+				/* TODO: open a new stream */
+				break;
+		}
+	}
+
+	return 0;
+}
+
 int qse_xli_write (qse_xli_t* xli, qse_xli_io_impl_t io)
 {
+	int n;
+
+#if 0
 	if (io == QSE_NULL)
 	{
 		qse_xli_seterrnum (xli, QSE_XLI_EINVAL, QSE_NULL);
 		return -1;
 	}
+#endif
 
-	/* TODO: write data to io stream */
-	qse_xli_seterrnum (xli, QSE_XLI_ENOIMPL, QSE_NULL);
-	return -1;
+	QSE_MEMSET (&xli->wio, 0, QSE_SIZEOF(xli->wio));
+	xli->wio.impl = io;
+	xli->wio.arg.line = 1;
+	xli->wio.arg.colm = 1;
+	xli->wio.inp = &xli->wio.arg;
+	/*qse_xli_clearwionames (xli);*/
+
+#if 0
+	n = xli->wio.impl (xli, QSE_XLI_IO_OPEN, xli->wio.inp, QSE_NULL, 0);
+	if (n <= -1)
+	{
+		if (xli->errnum == QSE_XLI_ENOERR)
+			qse_xli_seterrnum (xli, QSE_XLI_EIOUSR, QSE_NULL); 
+		return -1;
+	}
+#endif
+
+	n = write_list (xli, &xli->root, 0);
+	QSE_ASSERT (xli->wio.inp == &xli->wio.arg);
+#if 0
+	close_current_stream (xli);
+#endif
+	return n;
 }
 
+
+
+
diff --git a/qse/lib/xli/xli.c b/qse/lib/xli/xli.c
index 750f4b68..8f605bd6 100644
--- a/qse/lib/xli/xli.c
+++ b/qse/lib/xli/xli.c
@@ -173,6 +173,13 @@ void qse_xli_freemem (qse_xli_t* xli, void* ptr)
 {
 	QSE_MMGR_FREE (xli->mmgr, ptr);
 }
+/* ------------------------------------------------------ */
+
+qse_xli_list_t* qse_xli_getroot (qse_xli_t* xli)
+{
+	return &xli->root;
+}
+
 
 /* ------------------------------------------------------ */
 
diff --git a/qse/lib/xli/xli.h b/qse/lib/xli/xli.h
index 5c234736..865fefde 100644
--- a/qse/lib/xli/xli.h
+++ b/qse/lib/xli/xli.h
@@ -57,12 +57,19 @@ struct qse_xli_t
 	qse_xli_tok_t tok;
 	struct
 	{
-		qse_xli_io_impl_t inf; /* input handler */
+		qse_xli_io_impl_t impl; /* input handler */
 		qse_xli_io_lxc_t  last;	
 		qse_xli_io_arg_t  arg; /* for top level */
 		qse_xli_io_arg_t* inp; /* current */
 	} sio;
 	qse_link_t* sio_names;
+
+	struct 
+	{
+		qse_xli_io_impl_t impl; /* output handler */
+		qse_xli_io_arg_t  arg; /* for top level */
+		qse_xli_io_arg_t* inp; /* current */
+	} wio;
 };