lib/fmt.c

@@ -1807,15 +1807,15 @@ static int print_bcs (hcl_fmtout_t* fmtout, const hcl_bch_t* ptr, hcl_oow_t len)
 		ucsptr = ucsbuf;
 		while (ucslen > 0)
 		{
-			hcl->io.udo_arg.ptr = ucsptr;
-			hcl->io.udo_arg.len = ucslen;
+			hcl->io.outarg.ptr = ucsptr;
+			hcl->io.outarg.len = ucslen;
 
-			if (hcl->io.udo_wrtr(hcl, HCL_IO_WRITE, &hcl->io.udo_arg) <= -1) return -1;
-			if (hcl->io.udo_arg.xlen <= 0) return 0; /* end of stream. but not failure */
+			if (hcl->io.printer(hcl, HCL_IO_WRITE, &hcl->io.outarg) <= -1) return -1;
+			if (hcl->io.outarg.xlen <= 0) return 0; /* end of stream. but not failure */
 
-			HCL_ASSERT (hcl, hcl->io.udo_arg.xlen <= len);
-			ucsptr += hcl->io.udo_arg.xlen;
-			ucslen -= hcl->io.udo_arg.xlen;
+			HCL_ASSERT (hcl, hcl->io.outarg.xlen <= len);
+			ucsptr += hcl->io.outarg.xlen;
+			ucslen -= hcl->io.outarg.xlen;
 		}
 
 		ptr += bcslen;
@@ -1827,15 +1827,15 @@ static int print_bcs (hcl_fmtout_t* fmtout, const hcl_bch_t* ptr, hcl_oow_t len)
 	optr = (hcl_bch_t*)ptr;
 	while (len > 0)
 	{
-		hcl->io.udo_arg.ptr = optr;
-		hcl->io.udo_arg.len = len;
+		hcl->io.outarg.ptr = optr;
+		hcl->io.outarg.len = len;
 
-		if (hcl->io.udo_wrtr(hcl, HCL_IO_WRITE, &hcl->io.udo_arg) <= -1) return -1;
-		if (hcl->io.udo_arg.xlen <= 0) return 0; /* end of stream. but not failure */
+		if (hcl->io.printer(hcl, HCL_IO_WRITE, &hcl->io.outarg) <= -1) return -1;
+		if (hcl->io.outarg.xlen <= 0) return 0; /* end of stream. but not failure */
 
-		HCL_ASSERT (hcl, hcl->io.udo_arg.xlen <= len);
-		optr += hcl->io.udo_arg.xlen;
-		len -= hcl->io.udo_arg.xlen;
+		HCL_ASSERT (hcl, hcl->io.outarg.xlen <= len);
+		optr += hcl->io.outarg.xlen;
+		len -= hcl->io.outarg.xlen;
 	}
 #endif
 #else
@@ -1844,15 +1844,15 @@ static int print_bcs (hcl_fmtout_t* fmtout, const hcl_bch_t* ptr, hcl_oow_t len)
 	optr = (hcl_bch_t*)ptr;
 	while (len > 0)
 	{
-		hcl->io.udo_arg.ptr = optr;
-		hcl->io.udo_arg.len = len;
+		hcl->io.outarg.ptr = optr;
+		hcl->io.outarg.len = len;
 
-		if (hcl->io.udo_wrtr(hcl, HCL_IO_WRITE_BYTES, &hcl->io.udo_arg) <= -1) return -1;
-		if (hcl->io.udo_arg.xlen <= 0) return 0; /* end of stream. but not failure */
+		if (hcl->io.printer(hcl, HCL_IO_WRITE_BYTES, &hcl->io.outarg) <= -1) return -1;
+		if (hcl->io.outarg.xlen <= 0) return 0; /* end of stream. but not failure */
 
-		HCL_ASSERT (hcl, hcl->io.udo_arg.xlen <= len);
-		optr += hcl->io.udo_arg.xlen;
-		len -= hcl->io.udo_arg.xlen;
+		HCL_ASSERT (hcl, hcl->io.outarg.xlen <= len);
+		optr += hcl->io.outarg.xlen;
+		len -= hcl->io.outarg.xlen;
 	}
 #endif
 
@@ -1869,15 +1869,15 @@ static int print_ucs (hcl_fmtout_t* fmtout, const hcl_uch_t* ptr, hcl_oow_t len)
 	optr = (hcl_uch_t*)ptr;
 	while (len > 0)
 	{
-		hcl->io.udo_arg.ptr = optr;
-		hcl->io.udo_arg.len = len;
+		hcl->io.outarg.ptr = optr;
+		hcl->io.outarg.len = len;
 
-		if (hcl->io.udo_wrtr(hcl, HCL_IO_WRITE, &hcl->io.udo_arg) <= -1) return -1;
-		if (hcl->io.udo_arg.xlen <= 0) return 0; /* end of stream. but not failure */
+		if (hcl->io.printer(hcl, HCL_IO_WRITE, &hcl->io.outarg) <= -1) return -1;
+		if (hcl->io.outarg.xlen <= 0) return 0; /* end of stream. but not failure */
 
-		HCL_ASSERT (hcl, hcl->io.udo_arg.xlen <= len);
-		optr += hcl->io.udo_arg.xlen;
-		len -= hcl->io.udo_arg.xlen;
+		HCL_ASSERT (hcl, hcl->io.outarg.xlen <= len);
+		optr += hcl->io.outarg.xlen;
+		len -= hcl->io.outarg.xlen;
 	}
 #else
 	hcl_oow_t bcslen, ucslen;
@@ -1892,15 +1892,15 @@ static int print_ucs (hcl_fmtout_t* fmtout, const hcl_uch_t* ptr, hcl_oow_t len)
 		bcsptr = bcsbuf;
 		while (bcslen > 0)
 		{
-			hcl->io.udo_arg.ptr = bcsptr;
-			hcl->io.udo_arg.len = bcslen;
+			hcl->io.outarg.ptr = bcsptr;
+			hcl->io.outarg.len = bcslen;
 
-			if (hcl->io.udo_wrtr(hcl, HCL_IO_WRITE, &hcl->io.udo_arg) <= -1) return -1;
-			if (hcl->io.udo_arg.xlen <= 0) return 0; /* end of stream. but not failure */
+			if (hcl->io.printer(hcl, HCL_IO_WRITE, &hcl->io.outarg) <= -1) return -1;
+			if (hcl->io.outarg.xlen <= 0) return 0; /* end of stream. but not failure */
 
-			HCL_ASSERT (hcl, hcl->io.udo_arg.xlen <= len);
-			bcsptr += hcl->io.udo_arg.xlen;
-			bcslen -= hcl->io.udo_arg.xlen;
+			HCL_ASSERT (hcl, hcl->io.outarg.xlen <= len);
+			bcsptr += hcl->io.outarg.xlen;
+			bcslen -= hcl->io.outarg.xlen;
 		}
 
 		ptr += ucslen;

lib/hcl-prv.h

@@ -644,10 +644,10 @@ struct hcl_compiler_t
 	hcl_cb_t* cbp;
 
 	/* input handler */
-	hcl_io_impl_t sci_rdr;
+	hcl_io_impl_t reader;
 
 	/* static input data buffer */
-	hcl_io_sciarg_t  sci_arg;
+	hcl_io_sciarg_t  sciarg;
 
 	/* pointer to the current input data. initially, it points to &inarg */
 	hcl_io_sciarg_t* curinp;
@@ -661,10 +661,10 @@ struct hcl_compiler_t
 
 	/* unget buffer */
 	hcl_lxc_t  ungot[10];
-	int        nungots;
+	int          nungots;
 
 	/* the last token read */
-	hcl_tok_t   tok;
+	hcl_tok_t  tok;
 	hcl_link_t* sr_names;
 
 	hcl_synerr_t synerr;

lib/hcl-s.c

@@ -572,7 +572,7 @@ static int print_handler (hcl_t* hcl, hcl_io_cmd_t cmd, void* arg)
 		case HCL_IO_WRITE:
 		{
 			worker_hcl_xtn_t* xtn = (worker_hcl_xtn_t*)hcl_getxtn(hcl);
-			hcl_io_udoarg_t* outarg = (hcl_io_udoarg_t*)arg;
+			hcl_io_outarg_t* outarg = (hcl_io_outarg_t*)arg;
 
 			if (hcl_server_proto_feed_reply(xtn->proto, outarg->ptr, outarg->len, 0) <= -1)
 			{
@@ -591,7 +591,7 @@ static int print_handler (hcl_t* hcl, hcl_io_cmd_t cmd, void* arg)
 		case HCL_IO_WRITE_BYTES:
 		{
 			worker_hcl_xtn_t* xtn = (worker_hcl_xtn_t*)hcl_getxtn(hcl);
-			hcl_io_udoarg_t* outarg = (hcl_io_udoarg_t*)arg;
+			hcl_io_outarg_t* outarg = (hcl_io_outarg_t*)arg;
 
 			if (hcl_server_proto_feed_reply_bytes(xtn->proto, outarg->ptr, outarg->len, 0) <= -1)
 			{

lib/hcl.h

@@ -1268,8 +1268,8 @@ struct hcl_io_sciarg_t
 	/*-----------------------------------------------------------------*/
 };
 
-typedef struct hcl_io_udiarg_t hcl_io_udiarg_t;
-struct hcl_io_udiarg_t
+typedef struct hcl_io_inarg_t hcl_io_inarg_t;
+struct hcl_io_inarg_t
 {
 	/**
 	 * [OUT] I/O handle set by a handler.
@@ -1287,11 +1287,11 @@ struct hcl_io_udiarg_t
 	/**
 	 * [OUT] place the number of characters read here for #HCL_IO_READ
 	 */
-	hcl_oow_t xlen;
+	hcl_oow_t  xlen;
 };
 
-typedef struct hcl_io_udoarg_t hcl_io_udoarg_t;
-struct hcl_io_udoarg_t
+typedef struct hcl_io_outarg_t hcl_io_outarg_t;
+struct hcl_io_outarg_t
 {
 	/**
 	 * [OUT] I/O handle set by a handler.
@@ -1299,7 +1299,7 @@ struct hcl_io_udoarg_t
 	 * All subsequent operations on the stream see this field as set
 	 * during opening.
 	 */
-	void* handle;
+	void*        handle;
 
 	/**
 	 * [IN] the pointer to the beginning of the character/byte string
@@ -1307,18 +1307,18 @@ struct hcl_io_udoarg_t
 	 *      hcl_ooch_t* for HCL_IO_WRITE
 	 *      hcl_bch_t* or hcl_uint8_t* for HCL_IO_WRITE_BYTES
 	 */
-	void* ptr;
+	void*  ptr;
 
 	/**
 	 * [IN] total number of characters/bytes to write
 	 */
-	hcl_oow_t len;
+	hcl_oow_t    len;
 
 	/**
 	 * [OUT] place the number of characters/bytes written here for
 	 *       HCL_IO_WRITE or HCL_IO_WRITE_BYTES
 	 */
-	hcl_oow_t xlen;
+	hcl_oow_t    xlen;
 };
 
 /**
@@ -1327,8 +1327,8 @@ struct hcl_io_udoarg_t
  */
 typedef int (*hcl_io_impl_t) (
 	hcl_t*        hcl,
-	hcl_io_cmd_t  cmd,
-	void*         arg /* one of hcl_io_sciarg_t*, hcl_io_udiarg_t*, hcl_io_udoarg_t* */
+	hcl_io_cmd_t   cmd,
+	void*         arg /* one of hcl_io_sciarg_t*, hcl_io_inarg_t*, hcl_io_outarg_t* */
 );
 
 /* =========================================================================
@@ -1706,7 +1706,7 @@ struct hcl_t
 		hcl_dbgi_t* dbgi;
 	} code;
 
-	/* == PRINTER to udo stream == */
+	/* == PRINTER == */
 	struct
 	{
 		struct
@@ -1717,7 +1717,7 @@ struct hcl_t
 		} s;
 		hcl_oop_t e; /* top entry being printed */
 	} p;
-	/* == PRINTER to udo stream == */
+	/* == PRINTER == */
 
 	struct
 	{
@@ -1750,12 +1750,12 @@ struct hcl_t
 	struct
 	{
 		/* input handler */
-		hcl_io_impl_t udi_rdr;
-		hcl_io_udiarg_t udi_arg;
+		hcl_io_impl_t scanner;
+		hcl_io_inarg_t inarg;
 
 		/* output handler */
-		hcl_io_impl_t udo_wrtr;
-		hcl_io_udoarg_t udo_arg;
+		hcl_io_impl_t printer;
+		hcl_io_outarg_t outarg;
 	} io;
 
 #if defined(HCL_INCLUDE_COMPILER)
@@ -2241,10 +2241,10 @@ HCL_EXPORT hcl_ooch_t* hcl_readbasesrraw (
 );
 
 HCL_EXPORT int hcl_attachio (
-	hcl_t*          hcl,
-	hcl_io_impl_t   sci_rdr, /* source code input handler */
-	hcl_io_impl_t   udi_rdr, /* user data input handler */
-	hcl_io_impl_t   udo_wrtr /* user data output handler */
+	hcl_t*         hcl,
+	hcl_io_impl_t   reader, /* source stream heandler */
+	hcl_io_impl_t   scanner, /* runtime input stream handler */
+	hcl_io_impl_t   printer /* runtime output stream handler */
 );
 
 HCL_EXPORT int hcl_attachiostdwithbcstr (

lib/print.c

@@ -778,7 +778,7 @@ int hcl_outfmtobj (hcl_t* hcl, hcl_bitmask_t mask, hcl_oop_t obj, hcl_outbfmt_t
 
 int hcl_print (hcl_t* hcl, hcl_oop_t obj)
 {
-	HCL_ASSERT (hcl, hcl->io.udo_wrtr != HCL_NULL);
+	HCL_ASSERT (hcl, hcl->io.printer != HCL_NULL);
 	/*return hcl_outfmtobj(hcl, HCL_LOG_APP | HCL_LOG_FATAL, obj);*/
 	return hcl_prbfmt(hcl, "%O", obj);
 }

lib/read.c

@@ -446,7 +446,7 @@ static int _get_char (hcl_t* hcl, hcl_io_sciarg_t* inp)
 
 	if (inp->b.pos >= inp->b.len)
 	{
-		if (hcl->c->sci_rdr(hcl, HCL_IO_READ, inp) <= -1) return -1;
+		if (hcl->c->reader(hcl, HCL_IO_READ, inp) <= -1) return -1;
 
 		if (inp->xlen <= 0)
 		{
@@ -893,18 +893,18 @@ static int feed_begin_include (hcl_t* hcl)
 	/*arg->nl = '\0';*/
 	arg->includer = hcl->c->curinp;
 
-	if (hcl->c->sci_rdr(hcl, HCL_IO_OPEN, arg) <= -1)
+	if (hcl->c->reader(hcl, HCL_IO_OPEN, arg) <= -1)
 	{
 		const hcl_ooch_t* org_errmsg = hcl_backuperrmsg(hcl);
 		hcl_setsynerrbfmt (hcl, HCL_SYNERR_INCLUDE, TOKEN_LOC(hcl), TOKEN_NAME(hcl), "unable to include %js - %js", io_name, org_errmsg);
 		goto oops;
 	}
 
-	if (arg->includer == &hcl->c->sci_arg) /* top-level include */
+	if (arg->includer == &hcl->c->sciarg) /* top-level include */
 	{
 		/* TODO: remove hcl_readbasesrchar() and clean up this part.
 		 * hcl_readbasesrchar(), if called in the middle of feeds,
-		 * updates hcl->c->sci_arg's line and colm. so use a separate
+		 * updates hcl->c->sciarg's line and colm. so use a separate
 		 * field to store the current feed location for now */
 		hcl->c->feed.lx._oloc = hcl->c->feed.lx.loc;
 	}
@@ -934,12 +934,12 @@ static int feed_end_include (hcl_t* hcl)
 	int x;
 	hcl_io_sciarg_t* cur;
 
-	if (hcl->c->curinp == &hcl->c->sci_arg) return 0; /* no include */
+	if (hcl->c->curinp == &hcl->c->sciarg) return 0; /* no include */
 
 	/* if it is an included file, close it and
 	 * retry to read a character from an outer file */
 
-	x = hcl->c->sci_rdr(hcl, HCL_IO_CLOSE, hcl->c->curinp);
+	x = hcl->c->reader(hcl, HCL_IO_CLOSE, hcl->c->curinp);
 
 	/* if closing has failed, still destroy the sio structure
 	 * first as normal and return the failure below. this way,
@@ -948,7 +948,7 @@ static int feed_end_include (hcl_t* hcl)
 	cur = hcl->c->curinp;
 	hcl->c->curinp = hcl->c->curinp->includer;
 
-	if (hcl->c->curinp == &hcl->c->sci_arg)
+	if (hcl->c->curinp == &hcl->c->sciarg)
 	{
 		hcl->c->feed.lx.loc = hcl->c->feed.lx._oloc;
 	}
@@ -2365,13 +2365,13 @@ static int feed_from_includee (hcl_t* hcl)
 {
 	int x;
 
-	HCL_ASSERT (hcl, hcl->c->curinp != HCL_NULL && hcl->c->curinp != &hcl->c->sci_arg);
+	HCL_ASSERT (hcl, hcl->c->curinp != HCL_NULL && hcl->c->curinp != &hcl->c->sciarg);
 
 	do
 	{
 		if (hcl->c->curinp->b.pos >= hcl->c->curinp->b.len)
 		{
-			if (hcl->c->sci_rdr(hcl, HCL_IO_READ, hcl->c->curinp) <= -1)
+			if (hcl->c->reader(hcl, HCL_IO_READ, hcl->c->curinp) <= -1)
 			{
 				return -1;
 			}
@@ -2406,7 +2406,7 @@ static int feed_from_includee (hcl_t* hcl)
 			if (feed_begin_include(hcl) <= -1) return -1;
 		}
 	}
-	while (hcl->c->curinp != &hcl->c->sci_arg);
+	while (hcl->c->curinp != &hcl->c->sciarg);
 
 	return 0;
 }
@@ -2465,7 +2465,7 @@ int hcl_feed (hcl_t* hcl, const hcl_ooch_t* data, hcl_oow_t len)
 				hcl->c->feed.rd.do_include_file = 0;
 			}
 
-			if (hcl->c->curinp && hcl->c->curinp != &hcl->c->sci_arg && feed_from_includee(hcl) <= -1)
+			if (hcl->c->curinp && hcl->c->curinp != &hcl->c->sciarg && feed_from_includee(hcl) <= -1)
 			{
 				/* TODO: return the number of processed characters via an argument? */
 				goto oops;
@@ -2669,7 +2669,7 @@ default callback for on_eof?
 
 /* ------------------------------------------------------------------------ */
 
-/* TODO: rename compiler to something else that can include reader, udo_wrtr, and compiler
+/* TODO: rename compiler to something else that can include reader, printer, and compiler
  * move compiler intialization/finalization here to more common place */
 
 static void gc_compiler_cb (hcl_t* hcl)
@@ -2786,13 +2786,13 @@ static int init_compiler (hcl_t* hcl)
 	return 0;
 }
 
-int hcl_attachio (hcl_t* hcl, hcl_io_impl_t sci_rdr, hcl_io_impl_t udi_rdr, hcl_io_impl_t udo_wrtr)
+int hcl_attachio (hcl_t* hcl, hcl_io_impl_t reader, hcl_io_impl_t scanner, hcl_io_impl_t printer)
 {
 	int n;
 	int inited_compiler = 0;
 	hcl_io_sciarg_t new_sciarg;
-	hcl_io_udiarg_t new_udiarg;
-	hcl_io_udoarg_t new_udoarg;
+	hcl_io_inarg_t new_inarg;
+	hcl_io_outarg_t new_outarg;
 
 	if (!hcl->c)
 	{
@@ -2800,7 +2800,7 @@ int hcl_attachio (hcl_t* hcl, hcl_io_impl_t sci_rdr, hcl_io_impl_t udi_rdr, hcl_
 		inited_compiler = 1;
 	}
 
-	if (sci_rdr)
+	if (reader)
 	{
 		/* The name field and the includer field are HCL_NULL
 		 * for the main stream */
@@ -2809,68 +2809,68 @@ int hcl_attachio (hcl_t* hcl, hcl_io_impl_t sci_rdr, hcl_io_impl_t udi_rdr, hcl_
 		new_sciarg.colm = 1;
 
 		/* open the top-level source input stream */
-		n = sci_rdr(hcl, HCL_IO_OPEN, &new_sciarg);
+		n = reader(hcl, HCL_IO_OPEN, &new_sciarg);
 		if (n <= -1) goto oops;
 	}
 
-	if (udi_rdr)
+	if (scanner)
 	{
-		HCL_MEMSET (&new_udiarg, 0, HCL_SIZEOF(new_udiarg));
-		n = udi_rdr(hcl, HCL_IO_OPEN, &new_udiarg);
+		HCL_MEMSET (&new_inarg, 0, HCL_SIZEOF(new_inarg));
+		n = scanner(hcl, HCL_IO_OPEN, &new_inarg);
 		if (n <= -1)
 		{
-			sci_rdr (hcl, HCL_IO_CLOSE, &new_sciarg);
+			reader (hcl, HCL_IO_CLOSE, &new_sciarg);
 			goto oops;
 		}
 	}
 
-	if (udo_wrtr)
+	if (printer)
 	{
 		/* open the new output stream */
-		HCL_MEMSET (&new_udoarg, 0, HCL_SIZEOF(new_udoarg));
-		n = udo_wrtr(hcl, HCL_IO_OPEN, &new_udoarg);
+		HCL_MEMSET (&new_outarg, 0, HCL_SIZEOF(new_outarg));
+		n = printer(hcl, HCL_IO_OPEN, &new_outarg);
 		if (n <= -1)
 		{
-			if (udi_rdr) udi_rdr (hcl, HCL_IO_CLOSE, &new_udiarg);
-			if (sci_rdr) sci_rdr (hcl, HCL_IO_CLOSE, &new_sciarg);
+			if (scanner) scanner (hcl, HCL_IO_CLOSE, &new_inarg);
+			if (reader) reader (hcl, HCL_IO_CLOSE, &new_sciarg);
 			goto oops;
 		}
 	}
 
-	if (sci_rdr)
+	if (reader)
 	{
-		if (hcl->c->sci_rdr)
+		if (hcl->c->reader)
 		{
 			/* close the old source input stream */
-			hcl->c->sci_rdr (hcl, HCL_IO_CLOSE, &hcl->c->sci_arg);
+			hcl->c->reader (hcl, HCL_IO_CLOSE, &hcl->c->sciarg);
 		}
-		hcl->c->sci_rdr = sci_rdr;
-		hcl->c->sci_arg = new_sciarg;
+		hcl->c->reader = reader;
+		hcl->c->sciarg = new_sciarg;
 	}
 
-	if (udi_rdr)
+	if (scanner)
 	{
-		if (hcl->io.udi_rdr)
+		if (hcl->io.scanner)
 		{
 			/* close the old input stream */
-			hcl->io.udi_rdr (hcl, HCL_IO_CLOSE, &hcl->io.udi_arg);
+			hcl->io.scanner (hcl, HCL_IO_CLOSE, &hcl->io.inarg);
 		}
-		hcl->io.udi_rdr = udi_rdr;
-		hcl->io.udi_arg = new_udiarg;
+		hcl->io.scanner = scanner;
+		hcl->io.inarg = new_inarg;
 	}
 
-	if (udo_wrtr)
+	if (printer)
 	{
-		if (hcl->io.udo_wrtr)
+		if (hcl->io.printer)
 		{
 			/* close the old output stream */
-			hcl->io.udo_wrtr (hcl, HCL_IO_CLOSE, &hcl->io.udo_arg);
+			hcl->io.printer (hcl, HCL_IO_CLOSE, &hcl->io.outarg);
 		}
-		hcl->io.udo_wrtr = udo_wrtr;
-		hcl->io.udo_arg = new_udoarg;
+		hcl->io.printer = printer;
+		hcl->io.outarg = new_outarg;
 	}
 
-	if (sci_rdr)
+	if (reader)
 	{
 		/* clear unneeded source stream names */
 		/*clear_sr_names (hcl); <---- TODO: tricky to clean up here */
@@ -2878,7 +2878,7 @@ int hcl_attachio (hcl_t* hcl, hcl_io_impl_t sci_rdr, hcl_io_impl_t udi_rdr, hcl_
 		/* initialize some other key fields */
 		hcl->c->nungots = 0;
 		/* the source stream is open. set it as the current input stream */
-		hcl->c->curinp = &hcl->c->sci_arg;
+		hcl->c->curinp = &hcl->c->sciarg;
 	}
 
 	return 0;
@@ -2890,7 +2890,7 @@ oops:
 
 void hcl_flushio (hcl_t* hcl)
 {
-	if (hcl->io.udo_wrtr) hcl->io.udo_wrtr (hcl, HCL_IO_FLUSH, &hcl->io.udo_arg);
+	if (hcl->io.printer) hcl->io.printer (hcl, HCL_IO_FLUSH, &hcl->io.outarg);
 }
 
 void hcl_detachio (hcl_t* hcl)
@@ -2901,14 +2901,14 @@ void hcl_detachio (hcl_t* hcl)
 
 	if (hcl->c)
 	{
-		if (hcl->c->sci_rdr)
+		if (hcl->c->reader)
 		{
-			while (hcl->c->curinp != &hcl->c->sci_arg)
+			while (hcl->c->curinp != &hcl->c->sciarg)
 			{
 				hcl_io_sciarg_t* prev;
 
 				/* nothing much to do about a close error */
-				hcl->c->sci_rdr (hcl, HCL_IO_CLOSE, hcl->c->curinp);
+				hcl->c->reader (hcl, HCL_IO_CLOSE, hcl->c->curinp);
 
 				prev = hcl->c->curinp->includer;
 				HCL_ASSERT (hcl, hcl->c->curinp->name != HCL_NULL);
@@ -2916,29 +2916,29 @@ void hcl_detachio (hcl_t* hcl)
 				hcl->c->curinp = prev;
 			}
 
-			hcl->c->sci_rdr (hcl, HCL_IO_CLOSE, hcl->c->curinp);
-			hcl->c->sci_rdr = HCL_NULL; /* ready for another attachment */
+			hcl->c->reader (hcl, HCL_IO_CLOSE, hcl->c->curinp);
+			hcl->c->reader = HCL_NULL; /* ready for another attachment */
 		}
 
 	}
 
-	if (hcl->io.udi_rdr)
+	if (hcl->io.scanner)
 	{
-		hcl->io.udi_rdr (hcl, HCL_IO_CLOSE, &hcl->io.udi_arg);
-		hcl->io.udi_rdr = HCL_NULL; /* ready for another attachment */
+		hcl->io.scanner (hcl, HCL_IO_CLOSE, &hcl->io.inarg);
+		hcl->io.scanner = HCL_NULL; /* ready for another attachment */
 	}
 
-	if (hcl->io.udo_wrtr)
+	if (hcl->io.printer)
 	{
-		hcl->io.udo_wrtr (hcl, HCL_IO_CLOSE, &hcl->io.udo_arg);
-		hcl->io.udo_wrtr = HCL_NULL; /* ready for another attachment */
+		hcl->io.printer (hcl, HCL_IO_CLOSE, &hcl->io.outarg);
+		hcl->io.printer = HCL_NULL; /* ready for another attachment */
 	}
 }
 
 void hcl_setbasesrloc (hcl_t* hcl, hcl_oow_t line, hcl_oow_t colm)
 {
-	hcl->c->sci_arg.line = line;
-	hcl->c->sci_arg.colm = colm;
+	hcl->c->sciarg.line = line;
+	hcl->c->sciarg.colm = colm;
 }
 
 hcl_lxc_t* hcl_readbasesrchar (hcl_t* hcl)
@@ -2946,9 +2946,9 @@ hcl_lxc_t* hcl_readbasesrchar (hcl_t* hcl)
 	/* read a character using the base input stream. the caller must care extra
 	 * care when using this function. this function reads the main stream regardless
 	 * of the inclusion status and ignores the ungot characters. */
-	int n = _get_char(hcl, &hcl->c->sci_arg);
+	int n = _get_char(hcl, &hcl->c->sciarg);
 	if (n <= -1) return HCL_NULL;
-	return &hcl->c->sci_arg.lxc;
+	return &hcl->c->sciarg.lxc;
 }
 
 hcl_ooch_t* hcl_readbasesrraw (hcl_t* hcl, hcl_oow_t* xlen)
@@ -2959,7 +2959,7 @@ hcl_ooch_t* hcl_readbasesrraw (hcl_t* hcl, hcl_oow_t* xlen)
 
 	HCL_ASSERT (hcl, hcl->c != HCL_NULL); /* call hio_attachio() or hio_attachiostd() with proper arguments first */
 
-	if (hcl->c->sci_rdr(hcl, HCL_IO_READ, &hcl->c->sci_arg) <= -1) return HCL_NULL;
-	*xlen = hcl->c->sci_arg.xlen;
-	return hcl->c->sci_arg.buf;
+	if (hcl->c->reader(hcl, HCL_IO_READ, &hcl->c->sciarg) <= -1) return HCL_NULL;
+	*xlen = hcl->c->sciarg.xlen;
+	return hcl->c->sciarg.buf;
 }

lib/std.c

@@ -3396,7 +3396,7 @@ static int sci_handler (hcl_t* hcl, hcl_io_cmd_t cmd, void* arg)
 }
 
 /* --------------------------------------------------------------------- */
-static HCL_INLINE int open_in_stream (hcl_t* hcl, hcl_io_udiarg_t* arg)
+static HCL_INLINE int open_in_stream (hcl_t* hcl, hcl_io_inarg_t* arg)
 {
 	xtn_t* xtn = GET_XTN(hcl);
 	bb_t* bb = HCL_NULL;
@@ -3438,7 +3438,7 @@ oops:
 	return -1;
 }
 
-static HCL_INLINE int close_in_stream (hcl_t* hcl, hcl_io_udiarg_t* arg)
+static HCL_INLINE int close_in_stream (hcl_t* hcl, hcl_io_inarg_t* arg)
 {
 	/*xtn_t* xtn = GET_XTN(hcl);*/
 	bb_t* bb;
@@ -3453,7 +3453,7 @@ static HCL_INLINE int close_in_stream (hcl_t* hcl, hcl_io_udiarg_t* arg)
 	return 0;
 }
 
-static HCL_INLINE int read_in_stream (hcl_t* hcl, hcl_io_udiarg_t* arg)
+static HCL_INLINE int read_in_stream (hcl_t* hcl, hcl_io_inarg_t* arg)
 {
 	/*xtn_t* xtn = GET_XTN(hcl);*/
 	bb_t* bb;
@@ -3508,13 +3508,13 @@ static int scan_handler (hcl_t* hcl, hcl_io_cmd_t cmd, void* arg)
 	switch (cmd)
 	{
 		case HCL_IO_OPEN:
-			return open_in_stream(hcl, (hcl_io_udiarg_t*)arg);
+			return open_in_stream(hcl, (hcl_io_inarg_t*)arg);
 
 		case HCL_IO_CLOSE:
-			return close_in_stream(hcl, (hcl_io_udiarg_t*)arg);
+			return close_in_stream(hcl, (hcl_io_inarg_t*)arg);
 
 		case HCL_IO_READ:
-			return read_in_stream(hcl, (hcl_io_udiarg_t*)arg);
+			return read_in_stream(hcl, (hcl_io_inarg_t*)arg);
 
 		case HCL_IO_FLUSH:
 			/* no effect on an input stream */
@@ -3528,7 +3528,7 @@ static int scan_handler (hcl_t* hcl, hcl_io_cmd_t cmd, void* arg)
 
 /* --------------------------------------------------------------------- */
 
-static HCL_INLINE int open_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
+static HCL_INLINE int open_out_stream (hcl_t* hcl, hcl_io_outarg_t* arg)
 {
 	xtn_t* xtn = GET_XTN(hcl);
 	FILE* fp;
@@ -3552,7 +3552,7 @@ static HCL_INLINE int open_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
 	return 0;
 }
 
-static HCL_INLINE int close_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
+static HCL_INLINE int close_out_stream (hcl_t* hcl, hcl_io_outarg_t* arg)
 {
 	/*xtn_t* xtn = GET_XTN(hcl);*/
 	FILE* fp;
@@ -3564,7 +3564,7 @@ static HCL_INLINE int close_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
 	return 0;
 }
 
-static HCL_INLINE int write_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
+static HCL_INLINE int write_out_stream (hcl_t* hcl, hcl_io_outarg_t* arg)
 {
 	/*xtn_t* xtn = GET_XTN(hcl);*/
 	const hcl_ooch_t* ptr;
@@ -3604,7 +3604,7 @@ static HCL_INLINE int write_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
 	return 0;
 }
 
-static HCL_INLINE int write_bytes_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
+static HCL_INLINE int write_bytes_out_stream (hcl_t* hcl, hcl_io_outarg_t* arg)
 {
 	/*xtn_t* xtn = GET_XTN(hcl);*/
 	const hcl_uint8_t* ptr;
@@ -3621,7 +3621,7 @@ static HCL_INLINE int write_bytes_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
 	return 0;
 }
 
-static HCL_INLINE int flush_out_stream (hcl_t* hcl, hcl_io_udoarg_t* arg)
+static HCL_INLINE int flush_out_stream (hcl_t* hcl, hcl_io_outarg_t* arg)
 {
 	FILE* fp;
 
@@ -3637,19 +3637,19 @@ static int print_handler (hcl_t* hcl, hcl_io_cmd_t cmd, void* arg)
 	switch (cmd)
 	{
 		case HCL_IO_OPEN:
-			return open_out_stream(hcl, (hcl_io_udoarg_t*)arg);
+			return open_out_stream(hcl, (hcl_io_outarg_t*)arg);
 
 		case HCL_IO_CLOSE:
-			return close_out_stream(hcl, (hcl_io_udoarg_t*)arg);
+			return close_out_stream(hcl, (hcl_io_outarg_t*)arg);
 
 		case HCL_IO_WRITE:
-			return write_out_stream(hcl, (hcl_io_udoarg_t*)arg);
+			return write_out_stream(hcl, (hcl_io_outarg_t*)arg);
 
 		case HCL_IO_WRITE_BYTES:
-			return write_bytes_out_stream(hcl, (hcl_io_udoarg_t*)arg);
+			return write_bytes_out_stream(hcl, (hcl_io_outarg_t*)arg);
 
 		case HCL_IO_FLUSH:
-			return flush_out_stream(hcl, (hcl_io_udoarg_t*)arg);
+			return flush_out_stream(hcl, (hcl_io_outarg_t*)arg);
 
 		default:
 			hcl_seterrnum (hcl, HCL_EINTERN);