sofort: split-up: keep build-system elements, move extras to sofortex.

30 files changed, 4 insertions, 2588 deletions

diff --git a/HOWTO b/HOWTO
deleted file mode 100644
index 4e06731..0000000
--- a/HOWTO
+++ /dev/null
@@ -1,113 +0,0 @@
-The purpose of this how-to is to help you transform the sofort
-project template into your own work-in-progress repository.
-
-So that all steps are concrete and fully defined, let us
-pretend that you would like to create a library and front-end
-utility named 'wonderer', and have accordingly chosen 'wndr'
-as your namespace prefix.
-
-
-OUTLINE
--------
-step 1: clone.
-step 2: make this your own.
-step 3: create your first interface.
-
-
-step 1: clone
--------------
-# ./sofort.sh -d $HOME/wonderer -p wonderer -n wndr
-# cd $HOME/wonderer
-# git init
-
-
-step 2: make this your own
---------------------------
-* update the README file with a preliminary description
-  of your project.
-
-* update COPYING.WONDERER with your license of choice.
-
-* include/wonderer/wonderer.h: fix whitespace as needed.
-
-* src/wonderer.c: vermsg[]: replace git://localhost
-  with your own git host.
-
-* verify that all went well:
-
-# mkdir ../build && cd ../build
-# ../wonderer/configure && make
-
-* enjoy your skeleton by running bin/wonderer.
-
-* commit your changes (i.e. 'created skeleton').
-
-
-step 3: create your first interface
------------------------------------
-At the outset, adding a command-line interface involves
-the addition of an argv option record in conjunction
-with an option tag and a driver switch case.
-
-Unless a no-op, the above interface will correspond to
-either a flag in your common context structure (i.e.
-struct wndr_common_ctx), or an attribute in that structure,
-or both.
-
-Now let us practice all that while also looking at the two
-dummy interfaces which are part of sofort (note that these
-interfaces are *not* present in the generated project):
-
-* src/internal/wonderer_driver_impl.h: add a tag (see the
-  DUMMY and PROPERTY tags in the corresponding sofort file).
-
-* src/skin/wonderer_skin_default.c: add an argv option record;
-  if your option is associated with a finite set of values
-  (i.e. --fruit=apple|grape|orange) then you should take
-  advantage of the 'paradigm' member in struct argv_option
-  (see src/internal/argv/argv.h for the complete struct
-  definition).
-
-* src/driver/wndr_driver_ctx.c: add a switch case; depending
-  on the interface that you are adding, you will be either
-  setting a bit in one of the flag members of wndr_common_ctx
-  (in which case you should define a macro for that flag),
-  or assign the option value to an attribute in the above
-  context (in which case you should add an appropriate member
-  to the context structure). For the latter case, see the
-  handling of TAG_OUTPUT_DUMMY in the respective sofort file;
-  for the former, see the handling of TAG_OUTPUT_PROPERTY.
-
-* make use of the newly added flag/attribute in one or more
-  of your functions; remember to refer to your new source file
-  in project/common.src, and, assuming you would like to expose
-  it, add the function declaration to wonderer.h.
-
-* front-end utility (src/wonderer.c): if applicable, extend
-   wonderer_perform_unit_actions() so that it calls the above
-   (library) function as needed.
-
-
-what about attribution?
------------------------
-As far as I (Z. Gilboa) am concerned, no attribution
-beyond the copyright clause in argv.h is necessary.
-Should you wish to include a detailed attribution note
-with your project, however, you may find the following
-text useful:
-
-The starting point for this repository was a skeleton
-generated by 'sofort: portable software project template'
-(git://midipix.org/sofort, MIT licensed, see COPYING.SOFORT).
-
-The generated skeleton included the following elements:
-+ the argv parser and usage screen generator (argv.h).
-+ the build system (configure, config.usage, Makefile.in,
-  sofort/config.vars, sofort/defs.mk, sofort/flavor.mk,
-  sofort/pkgconf.mk, sofort/pkgconf.sh, and
-  sofort/version.mk).
-+ the initial driver logic:
-  --> src/driver/namespace_driver_ctx.c
-  --> src/driver/namespace_unit_ctx.c
-+ and initial input mapping logic:
-  --> src/logic/namespace_map_input.c
diff --git a/README b/README
deleted file mode 100644
index adc486a..0000000
--- a/README
+++ /dev/null
@@ -1,50 +0,0 @@
-sofort: portable software project template
-------------------------------------------
-
-motivation
-----------
-* take care of the elements that are common to all
-  (of my) cross-platform C projects, and which, for
-  the most part, do not (or at least should not)
-  contain any project-specific bits:
-  --> the build system;
-  --> the argv parser and usage screen generator;
-  --> the initial program driver;
-  --> and initial front-end utility.
-* zero external dependencies: the new project is
-  generated from the template project using basic
-  shell utilities, specifically cp, grep, and sed.
-
-build system
-------------
-* the project is conceived as a library with
-  an accompanying front-end utility.
-* the configure script is fast and skinny,
-  yet comprehensive.
-* unified logic for native and cross builds.
-* unified logic for in-tree and out-of-tree builds.
-
-driver
-------
-* the provided argv parser and usage screen generator
-  is powerful, flexible, and thread-safe; moreover,
-  it allows for a program driver that is entirely
-  independent of the chosen skin.
-
-skins
------
-* one benefit of the above design is that it allows the
-  front-end utility to have several distinct skins at
-  virtually no effort.
-
-modularity
-----------
-* the distinct driver and unit context, in combination
-  with the thread-safe argv parser, render the front-end
-  utility's inclusion in a multi-call binary trivial.
-
-extras
-------
-* the template provides the skeleton of an application
-  that may accept one or more files for its input, then
-  operate on each input file individually.
diff --git a/config.project b/config.project
index 96914b5..4c5efa6 100644
--- a/config.project
+++ b/config.project
@@ -67,9 +67,9 @@ mb_default_elf_config_defs=
 # config
 mb_all_static=
 mb_all_shared=
-mb_disable_frontend=
-mb_disable_static=
-mb_disable_shared=
+mb_disable_frontend=yes
+mb_disable_static=yes
+mb_disable_shared=yes
 
 mb_use_custom_cfgdefs=no
 mb_use_custom_usrdefs=no
diff --git a/include/empty.dir b/include/empty.dir
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/include/empty.dir
diff --git a/include/sofort/sofort.h b/include/sofort/sofort.h
deleted file mode 100644
index 5495b94..0000000
--- a/include/sofort/sofort.h
+++ /dev/null
@@ -1,156 +0,0 @@
-#ifndef SOFORT_H
-#define SOFORT_H
-
-#include <stdint.h>
-#include <stdio.h>
-
-#include "sofort_api.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* pre-alpha */
-#ifndef SFRT_APP
-#ifndef SFRT_PRE_ALPHA
-#error  libsofort: pre-alpha: ABI is not final!
-#error  to use the library, please pass -DSFRT_PRE_ALPHA to the compiler.
-#endif
-#endif
-
-/* status codes */
-#define SFRT_OK				0x00
-#define SFRT_USAGE			0x01
-#define SFRT_ERROR			0x02
-
-/* driver flags */
-#define SFRT_DRIVER_VERBOSITY_NONE	0x0000
-#define SFRT_DRIVER_VERBOSITY_ERRORS	0x0001
-#define SFRT_DRIVER_VERBOSITY_STATUS	0x0002
-#define SFRT_DRIVER_VERBOSITY_USAGE	0x0004
-#define SFRT_DRIVER_CLONE_VECTOR	0x0008
-
-#define SFRT_DRIVER_VERSION		0x0010
-#define SFRT_DRIVER_DRY_RUN		0x0020
-
-#define SFRT_DRIVER_ANNOTATE_ALWAYS	0x1000
-#define SFRT_DRIVER_ANNOTATE_NEVER	0x2000
-#define SFRT_DRIVER_ANNOTATE_FULL	0x4000
-
-/* unit action flags */
-#define SFRT_OUTPUT_NAME		0x0001 /* dummy */
-#define SFRT_OUTPUT_ADDRESS		0x0002 /* dummy */
-
-/* error flags */
-#define SFRT_ERROR_TOP_LEVEL		0x0001
-#define SFRT_ERROR_NESTED		0x0002
-#define SFRT_ERROR_CHILD		0x0004
-#define SFRT_ERROR_CUSTOM		0x0008
-
-enum sfrt_custom_error {
-	SFRT_ERR_FLOW_ERROR,
-	SFRT_ERR_FLEE_ERROR,
-	SFRT_ERR_NULL_CONTEXT,
-	SFRT_ERR_NULL_SOURCE,
-	SFRT_ERR_INVALID_CONTEXT,
-	SFRT_ERR_INVALID_SOURCE,
-	SFRT_ERR_SOURCE_SIZE_ZERO,
-	SFRT_ERR_CAP,
-};
-
-struct sfrt_input {
-	void *		addr;
-	size_t		size;
-};
-
-struct sfrt_source_version {
-	int		major;
-	int		minor;
-	int		revision;
-	const char *	commit;
-};
-
-struct sfrt_fd_ctx {
-	int		fdin;
-	int		fdout;
-	int		fderr;
-	int		fdlog;
-	int		fdcwd;
-	int		fddst;
-};
-
-struct sfrt_error_info {
-	const struct sfrt_driver_ctx *	edctx;
-	const struct sfrt_unit_ctx *	euctx;
-	const char *			eunit;
-	int				esyscode;
-	int				elibcode;
-	const char *			efunction;
-	int				eline;
-	unsigned			eflags;
-	void *				eany;
-};
-
-struct sfrt_common_ctx {
-	uint64_t			drvflags;
-	uint64_t			actflags;
-	uint64_t			fmtflags;
-	const char *			anystring; /* dummy */
-};
-
-struct sfrt_driver_ctx {
-	const char **			units;
-	const char *			program;
-	const char *			module;
-	const struct sfrt_common_ctx *	cctx;
-	struct sfrt_error_info **	errv;
-	void *				any;
-};
-
-struct sfrt_unit_ctx {
-	const char * const *		path;
-	const struct sfrt_input *	map;
-	void *				any;
-};
-
-/* driver api */
-sfrt_api int  sfrt_get_driver_ctx       (char **, char **, uint32_t,
-                                         const struct sfrt_fd_ctx *,
-                                         struct sfrt_driver_ctx **);
-
-sfrt_api void sfrt_free_driver_ctx      (struct sfrt_driver_ctx *);
-
-sfrt_api int  sfrt_get_unit_ctx         (const struct sfrt_driver_ctx *, const char *,
-                                         struct sfrt_unit_ctx **);
-
-sfrt_api void sfrt_free_unit_ctx        (struct sfrt_unit_ctx *);
-
-sfrt_api int  sfrt_get_driver_fdctx     (const struct sfrt_driver_ctx *, struct sfrt_fd_ctx *);
-sfrt_api int  sfrt_set_driver_fdctx     (struct sfrt_driver_ctx *, const struct sfrt_fd_ctx *);
-
-/* utility api */
-sfrt_api int  sfrt_main                 (char **, char **, const struct sfrt_fd_ctx *);
-
-sfrt_api int  sfrt_output_dummy         (const struct sfrt_driver_ctx *);					/* dummy */
-sfrt_api int  sfrt_output_name          (const struct sfrt_driver_ctx *, const struct sfrt_unit_ctx *);		/* dummy */
-sfrt_api int  sfrt_output_address       (const struct sfrt_driver_ctx *, const struct sfrt_unit_ctx *);		/* dummy */
-
-/* error trace api */
-sfrt_api int  sfrt_output_error_record  (const struct sfrt_driver_ctx *, const struct sfrt_error_info *);
-sfrt_api int  sfrt_output_error_vector  (const struct sfrt_driver_ctx *);
-
-/* raw input api */
-sfrt_api int  sfrt_map_input            (const struct sfrt_driver_ctx *,
-                                         int, const char *, int,
-                                         struct sfrt_input *);
-
-sfrt_api int  sfrt_unmap_input          (struct sfrt_input *);
-
-/* package info */
-sfrt_api const struct sfrt_source_version * sfrt_source_version(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/include/sofort/sofort_api.h b/include/sofort/sofort_api.h
deleted file mode 100644
index 1303d3c..0000000
--- a/include/sofort/sofort_api.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#ifndef SOFORT_API_H
-#define SOFORT_API_H
-
-#include <limits.h>
-
-/* sfrt_export */
-#if	defined(__dllexport)
-#define sfrt_export __dllexport
-#else
-#define sfrt_export
-#endif
-
-/* sfrt_import */
-#if	defined(__dllimport)
-#define sfrt_import __dllimport
-#else
-#define sfrt_import
-#endif
-
-/* sfrt_api */
-#ifndef SFRT_APP
-#if     defined (SFRT_EXPORT)
-#define sfrt_api sfrt_export
-#elif   defined (SFRT_IMPORT)
-#define sfrt_api sfrt_import
-#elif   defined (SFRT_STATIC)
-#define sfrt_api
-#else
-#define sfrt_api
-#endif
-#else
-#define sfrt_api
-#endif
-
-#endif
diff --git a/project/common.mk b/project/common.mk
index 8850308..4b72987 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -1,19 +1,7 @@
 API_SRCS = \
-	src/driver/sfrt_amain.c \
-	src/driver/sfrt_driver_ctx.c \
-	src/driver/sfrt_unit_ctx.c \
-	src/logic/sfrt_map_input.c \
-	src/output/sfrt_output_address.c \
-	src/output/sfrt_output_dummy.c \
-	src/output/sfrt_output_error.c \
-	src/output/sfrt_output_name.c \
-	src/skin/sfrt_skin_default.c \
 
 INTERNAL_SRCS = \
-	src/internal/$(PACKAGE)_dprintf_impl.c \
-	src/internal/$(PACKAGE)_errinfo_impl.c \
 
 APP_SRCS = \
-	src/sofort.c
 
 COMMON_SRCS = $(API_SRCS) $(INTERNAL_SRCS)
diff --git a/project/extras.mk b/project/extras.mk
index 4d79ec5..e69de29 100644
--- a/project/extras.mk
+++ b/project/extras.mk
@@ -1,6 +0,0 @@
-CFLAGS_SHARED_ATTR	+= -DSFRT_PRE_ALPHA -DSFRT_EXPORT
-CFLAGS_STATIC_ATTR	+= -DSFRT_PRE_ALPHA -DSFRT_STATIC
-CFLAGS_APP_ATTR		+= -DSFRT_APP
-
-src/driver/sfrt_driver_ctx.o:	version.tag
-src/driver/sfrt_driver_ctx.lo:	version.tag
diff --git a/project/headers.mk b/project/headers.mk
index 2f2512a..9d50ee3 100644
--- a/project/headers.mk
+++ b/project/headers.mk
@@ -1,11 +1,5 @@
 API_HEADERS = \
-	$(PROJECT_DIR)/include/$(PACKAGE)/sofort.h \
-	$(PROJECT_DIR)/include/$(PACKAGE)/sofort_api.h \
 
 INTERNAL_HEADERS = \
-	$(PROJECT_DIR)/src/internal/argv/argv.h \
-	$(PROJECT_DIR)/src/internal/$(PACKAGE)_dprintf_impl.h \
-	$(PROJECT_DIR)/src/internal/$(PACKAGE)_driver_impl.h \
-	$(PROJECT_DIR)/src/internal/$(PACKAGE)_errinfo_impl.h \
 
 ALL_HEADERS = $(API_HEADERS) $(INTERNAL_HEADERS)
diff --git a/project/tagver.mk b/project/tagver.mk
index eee2041..6a5d8d6 100644
--- a/project/tagver.mk
+++ b/project/tagver.mk
@@ -1,4 +1,4 @@
-VER_NAMESPACE	= SFRT
+VER_NAMESPACE	=
 
 VER_MAJOR	= 0
 VER_MINOR	= 0
diff --git a/project/tree.mk b/project/tree.mk
index d91f6a2..20f0861 100644
--- a/project/tree.mk
+++ b/project/tree.mk
@@ -1,8 +1,3 @@
 tree.tag:
 		mkdir -p src
-		mkdir -p src/driver
-		mkdir -p src/internal
-		mkdir -p src/logic
-		mkdir -p src/output
-		mkdir -p src/skin
 		touch tree.tag
diff --git a/recipiff b/recipiff
deleted file mode 100755
index 50f3b77..0000000
--- a/recipiff
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/bin/sh
-
-src=$1
-dst=$2
-
-if [ -z "$dst" ]; then
-	echo 'usage: $0 src dst'
-	exit 1
-fi
-
-diff -ru $src/configure     $dst/configure     || exit 1
-diff -ru $src/config.usage  $dst/config.usage  || exit 1
-diff -ru $src/Makefile.in   $dst/Makefile.in   || exit 1
-
-diff -ru $src/sofort        $dst/sofort        || exit 1
-diff -ru $src/sysinfo       $dst/sysinfo       || exit 1
diff --git a/sofort.sh b/sofort.sh
deleted file mode 100755
index f2d038d..0000000
--- a/sofort.sh
+++ /dev/null
@@ -1,178 +0,0 @@
-#!/bin/sh
-
-usage()
-{
-cat << EOF >&2
-
-Usage:
-  -h            show this HELP message
-  -d  DSTDIR    set destination directory
-  -p  PROJECT   set project name (i.e. sofort)
-  -n  PREFIX    set namespace prefix (i.e. sfrt)
-
-EOF
-exit 1
-}
-
-error_dstdir_exists()
-{
-	echo "the destination directory '$dstdir' already exists!" >&2
-	exit 2
-}
-
-# one: args
-dstdir=
-project=
-namespace=
-
-srcdir=`dirname $0` || exit 2
-cd "$srcdir" || exit 2
-srcdir=`pwd` || exit 2
-
-while getopts "hd:p:n:" opt; do
-	case $opt in
-	h)
-  		usage
-  		;;
-	d)
-    		dstdir="$OPTARG"
-    		;;
-	p)
-    		project="$OPTARG"
-    		;;
-	n)
-    		namespace="$OPTARG"
-    		;;
-	\?)
-    		printf "Invalid option: -%s" "$OPTARG" >&2
-    		usage
-    		;;
-	esac
-done
-
-# two: clone
-if [ -z "$dstdir" ] || [ -z "$project" ] || [ -z "$namespace" ]; then
-	usage
-fi
-
-stat "$dstdir" >/dev/null 2>/dev/null && error_dstdir_exists
-mkdir -p "$(dirname $dstdir)" || exit 2
-cp -r "$srcdir" "$dstdir" || exit 2
-rm "$dstdir"/sofort.sh || exit 2
-rm "$dstdir"/recipiff || exit 2
-rm -rf "$dstdir"/.git || exit 2
-
-# three: content
-cd "$dstdir" || exit 2
-files=$(find . -type f)
-lowerspace=`echo "$namespace" | tr '[:upper:]' '[:lower:]'`_
-upperspace=`echo "$namespace" | tr '[:lower:]' '[:upper:]'`_
-
-for f in $files; do
-	sed -e s/sofort/$project/g "$f" > "$f.tmp" || exit 2
-	mv "$f.tmp" "$f" || exit 2
-
-	sed -e s/sfrt_/$lowerspace/g "$f" > "$f.tmp" || exit 2
-	mv "$f.tmp" "$f" || exit 2
-
-	sed -e s/SFRT_/$upperspace/g "$f" > "$f.tmp" || exit 2
-	mv "$f.tmp" "$f" || exit 2
-done
-
-# and also the driver and public headers
-files="$dstdir/src/driver/sfrt_driver_ctx.c"
-files="$files $dstdir/src/internal/sofort_driver_impl.h"
-files="$files $dstdir/include/sofort/sofort.h"
-files="$files $dstdir/include/sofort/sofort_api.h"
-
-upperspace=`echo "$project" | tr '[:lower:]' '[:upper:]'`
-
-for f in $files; do
-	sed -e s/SOFORT/$upperspace/g "$f" > "$f.tmp" || exit 2
-	mv "$f.tmp" "$f" || exit 2
-done
-
-# and also project/tagver.mk, which has SFRT, not SFRT_
-f=project/tagver.mk
-upperspace=`echo "$namespace" | tr '[:lower:]' '[:upper:]'`
-sed -e s/SFRT/$upperspace/g "$f" > "$f.tmp" || exit 2
-mv "$f.tmp" "$f" || exit 2
-
-# four: directory names
-mv include/sofort include/$project || exit 2
-dirs=$(find . -type d)
-
-for d in $dirs; do
-	case $d in
-		./sofort | ./sofort/* )
-			name=$d
-			;;
-		* )
-			name=`echo "$d" | sed -e s/sfrt_/$lowerspace/g \
-				-e s/sofort/$project/g`
-			;;
-	esac
-
-	if [ "$d" != "$name" ]; then
-		mv "$d" "$name" || exit 2
-	fi
-done
-
-# five: file names
-files=$(find . -type f)
-
-for f in $files; do
-	case $(dirname $f) in
-		./sofort | ./sofort/* )
-			name=$f
-			;;
-
-		* )
-			name=`echo "$f" | sed -e s/sfrt_/$lowerspace/g \
-				-e s/sofort/$project/g`
-			;;
-	esac
-
-	if [ "$f" != "$name" ]; then
-		mv "$f" "$name" || exit 2
-	fi
-done
-
-# six: references
-cp "$srcdir"/COPYING.SOFORT "$dstdir" || exit 2
-cp "$srcdir"/src/internal/argv/argv.h "$dstdir"/src/internal/argv || exit 2
-
-# seven: remove howto text and dummy interfaces
-rm "$dstdir"/HOWTO || exit 2
-rm "$dstdir"/src/output/* || exit 2
-
-recipe="$dstdir"/project/common.mk
-files=$(find . -type f)
-
-grep -v 'src/output' "$recipe" > "$recipe".tmp || exit 2
-mv "$recipe".tmp "$recipe" || exit 2
-
-for f in $files; do
-	grep -v 'dummy' "$f" > "$f".tmp
-	mv "$f".tmp "$f" || exit 2
-done
-
-# seven: sofort
-cp -p "$srcdir/configure"   "$dstdir"
-cp -p "$srcdir/Makefile.in" "$dstdir"
-
-# eight: finalize
-uppername=`echo "$project" | tr '[:lower:]' '[:upper:]'`
-utilcsrc=src/$project.c
-
-sed -e s/SOFORT/$uppername/g $utilcsrc> $utilcsrc.tmp || exit 2
-mv $utilcsrc.tmp $utilcsrc || exit 2
-
-touch COPYING.$uppername || exit 2
-echo "$project: project description" > README || exit 2
-
-chmod +x sysinfo/version.sh   || exit 2
-chmod +x ./configure          || exit 2
-
-# all done
-exit 0
diff --git a/src/driver/sfrt_amain.c b/src/driver/sfrt_amain.c
deleted file mode 100644
index 075d9f8..0000000
--- a/src/driver/sfrt_amain.c
+++ /dev/null
@@ -1,97 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <sofort/sofort.h>
-#include "sofort_driver_impl.h"
-#include "sofort_dprintf_impl.h"
-
-#ifndef SFRT_DRIVER_FLAGS
-#define SFRT_DRIVER_FLAGS	SFRT_DRIVER_VERBOSITY_ERRORS \
-				| SFRT_DRIVER_VERBOSITY_USAGE
-#endif
-
-static const char vermsg[] = "%s%s%s (git://midipix.org/sofort): "
-			     "version %s%d.%d.%d%s.\n"
-			     "[commit reference: %s%s%s]\n";
-
-static const char * const sfrt_ver_color[6] = {
-		"\x1b[1m\x1b[35m","\x1b[0m",
-		"\x1b[1m\x1b[32m","\x1b[0m",
-		"\x1b[1m\x1b[34m","\x1b[0m"
-};
-
-static const char * const sfrt_ver_plain[6] = {
-		"","",
-		"","",
-		"",""
-};
-
-static ssize_t sfrt_version(struct sfrt_driver_ctx * dctx, int fdout)
-{
-	const struct sfrt_source_version * verinfo;
-	const char * const * verclr;
-
-	verinfo = sfrt_source_version();
-	verclr  = isatty(fdout) ? sfrt_ver_color : sfrt_ver_plain;
-
-	return sfrt_dprintf(
-			fdout,vermsg,
-			verclr[0],dctx->program,verclr[1],
-			verclr[2],verinfo->major,verinfo->minor,
-			verinfo->revision,verclr[3],
-			verclr[4],verinfo->commit,verclr[5]);
-}
-
-static void sfrt_perform_unit_actions(
-	const struct sfrt_driver_ctx *	dctx,
-	struct sfrt_unit_ctx *		uctx)
-{
-	uint64_t flags = dctx->cctx->actflags;			/* dummy */
-								/* dummy */
-	if (flags & SFRT_OUTPUT_NAME)				/* dummy */
-		sfrt_output_name(dctx,uctx);			/* dummy */
-								/* dummy */
-	if (flags & SFRT_OUTPUT_ADDRESS)			/* dummy */
-		sfrt_output_address(dctx,uctx);			/* dummy */
-}
-
-static int sfrt_exit(struct sfrt_driver_ctx * dctx, int ret)
-{
-	sfrt_output_error_vector(dctx);
-	sfrt_free_driver_ctx(dctx);
-	return ret;
-}
-
-int sfrt_main(char ** argv, char ** envp, const struct sfrt_fd_ctx * fdctx)
-{
-	int				ret;
-	int				fdout;
-	uint64_t			flags;
-	struct sfrt_driver_ctx *	dctx;
-	struct sfrt_unit_ctx *		uctx;
-	const char **			unit;
-
-	flags = SFRT_DRIVER_FLAGS;
-	fdout = fdctx ? fdctx->fdout : STDOUT_FILENO;
-
-	if ((ret = sfrt_get_driver_ctx(argv,envp,flags,fdctx,&dctx)))
-		return (ret == SFRT_USAGE)
-			? !argv || !argv[0] || !argv[1]
-			: SFRT_ERROR;
-
-	if (dctx->cctx->drvflags & SFRT_DRIVER_VERSION)
-		if ((sfrt_version(dctx,fdout)) < 0)
-			return sfrt_exit(dctx,SFRT_ERROR);
-
-	if (dctx->cctx->anystring)				/* dummy */
-		if ((sfrt_output_dummy(dctx)) < 0)		/* dummy */
-			return sfrt_exit(dctx,2);		/* dummy */
-								/* dummy */
-	for (unit=dctx->units; *unit && !dctx->errv[0]; unit++) {
-		if (!(sfrt_get_unit_ctx(dctx,*unit,&uctx))) {
-			sfrt_perform_unit_actions(dctx,uctx);
-			sfrt_free_unit_ctx(uctx);
-		}
-	}
-
-	return sfrt_exit(dctx,dctx->errv[0] ? SFRT_ERROR : SFRT_OK);
-}
diff --git a/src/driver/sfrt_driver_ctx.c b/src/driver/sfrt_driver_ctx.c
deleted file mode 100644
index 643de8d..0000000
--- a/src/driver/sfrt_driver_ctx.c
+++ /dev/null
@@ -1,249 +0,0 @@
-#include <stdint.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#define ARGV_DRIVER
-
-#include <sofort/sofort.h>
-#include "sofort_version.h"
-#include "sofort_driver_impl.h"
-#include "argv/argv.h"
-
-/* package info */
-static const struct sfrt_source_version sfrt_src_version = {
-	SFRT_TAG_VER_MAJOR,
-	SFRT_TAG_VER_MINOR,
-	SFRT_TAG_VER_PATCH,
-	SOFORT_GIT_VERSION
-};
-
-struct sfrt_driver_ctx_alloc {
-	struct argv_meta *		meta;
-	struct sfrt_driver_ctx_impl	ctx;
-	uint64_t			guard;
-	const char *			units[];
-};
-
-static uint32_t sfrt_argv_flags(uint32_t flags)
-{
-	uint32_t ret = ARGV_CLONE_VECTOR;
-
-	if (flags & SFRT_DRIVER_VERBOSITY_NONE)
-		ret |= ARGV_VERBOSITY_NONE;
-
-	if (flags & SFRT_DRIVER_VERBOSITY_ERRORS)
-		ret |= ARGV_VERBOSITY_ERRORS;
-
-	if (flags & SFRT_DRIVER_VERBOSITY_STATUS)
-		ret |= ARGV_VERBOSITY_STATUS;
-
-	return ret;
-}
-
-static int sfrt_driver_usage(
-	int				fdout,
-	const char *			program,
-	const char *			arg,
-	const struct argv_option **	optv,
-	struct argv_meta *		meta)
-{
-	char header[512];
-
-	snprintf(header,sizeof(header),
-		"Usage: %s [options] <file>...\n" "Options:\n",
-		program);
-
-	argv_usage(fdout,header,optv,arg);
-	argv_free(meta);
-
-	return SFRT_USAGE;
-}
-
-static struct sfrt_driver_ctx_impl * sfrt_driver_ctx_alloc(
-	struct argv_meta *		meta,
-	const struct sfrt_fd_ctx *	fdctx,
-	const struct sfrt_common_ctx *	cctx,
-	size_t				nunits)
-{
-	struct sfrt_driver_ctx_alloc *	ictx;
-	size_t				size;
-	struct argv_entry *		entry;
-	const char **			units;
-	int				elements;
-
-	size =  sizeof(struct sfrt_driver_ctx_alloc);
-	size += (nunits+1)*sizeof(const char *);
-
-	if (!(ictx = calloc(1,size)))
-		return 0;
-
-	memcpy(&ictx->ctx.fdctx,fdctx,sizeof(*fdctx));
-	memcpy(&ictx->ctx.cctx,cctx,sizeof(*cctx));
-
-	for (entry=meta->entries,units=ictx->units; entry->fopt || entry->arg; entry++)
-		if (!entry->fopt)
-			*units++ = entry->arg;
-
-	elements = sizeof(ictx->ctx.erribuf) / sizeof(*ictx->ctx.erribuf);
-
-	ictx->ctx.errinfp  = &ictx->ctx.erriptr[0];
-	ictx->ctx.erricap  = &ictx->ctx.erriptr[--elements];
-
-	ictx->meta = meta;
-	ictx->ctx.ctx.units = ictx->units;
-	ictx->ctx.ctx.errv  = ictx->ctx.errinfp;
-	return &ictx->ctx;
-}
-
-static int sfrt_get_driver_ctx_fail(struct argv_meta * meta)
-{
-	argv_free(meta);
-	return -1;
-}
-
-int sfrt_get_driver_ctx(
-	char **				argv,
-	char **				envp,
-	uint32_t			flags,
-	const struct sfrt_fd_ctx *	fdctx,
-	struct sfrt_driver_ctx **	pctx)
-{
-	struct sfrt_driver_ctx_impl *	ctx;
-	struct sfrt_common_ctx		cctx;
-	const struct argv_option *	optv[SFRT_OPTV_ELEMENTS];
-	struct argv_meta *		meta;
-	struct argv_entry *		entry;
-	size_t				nunits;
-	const char *			program;
-
-	(void)envp;
-
-	if (!fdctx) {
-		fdctx = &(const struct sfrt_fd_ctx) {
-			.fdin  = STDIN_FILENO,
-			.fdout = STDOUT_FILENO,
-			.fderr = STDERR_FILENO,
-			.fdlog = (-1),
-			.fdcwd = AT_FDCWD,
-			.fddst = AT_FDCWD,
-		};
-	}
-
-	argv_optv_init(sfrt_default_options,optv);
-
-	if (!(meta = argv_get(
-			argv,optv,
-			sfrt_argv_flags(flags),
-			fdctx->fderr)))
-		return -1;
-
-	nunits	= 0;
-	program = argv_program_name(argv[0]);
-	memset(&cctx,0,sizeof(cctx));
-	cctx.drvflags = flags;
-
-	if (!argv[1] && (flags & SFRT_DRIVER_VERBOSITY_USAGE))
-		return sfrt_driver_usage(
-			fdctx->fderr,
-			program,0,
-			optv,meta);
-
-	/* get options, count units */
-	for (entry=meta->entries; entry->fopt || entry->arg; entry++) {
-		if (entry->fopt) {
-			switch (entry->tag) {
-				case TAG_HELP:
-					if (flags & SFRT_DRIVER_VERBOSITY_USAGE)
-						return sfrt_driver_usage(
-							fdctx->fderr,
-							program,entry->arg,
-							optv,meta);
-
-				case TAG_VERSION:
-					cctx.drvflags |= SFRT_DRIVER_VERSION;
-					break;
-/* dummy */
-/* dummy */			case TAG_OUTPUT_DUMMY:
-/* dummy */				cctx.anystring = entry->arg;
-/* dummy */				break;
-/* dummy */
-/* dummy */			case TAG_OUTPUT_PROPERTY:
-/* dummy */				if (!(strcmp(entry->arg,"name")))
-/* dummy */					cctx.actflags |= SFRT_OUTPUT_NAME;
-/* dummy */				else if (!(strcmp(entry->arg,"address")))
-/* dummy */					cctx.actflags |= SFRT_OUTPUT_ADDRESS;
-/* dummy */				break;
-			}
-		} else
-			nunits++;
-	}
-
-	if (!(ctx = sfrt_driver_ctx_alloc(meta,fdctx,&cctx,nunits)))
-		return sfrt_get_driver_ctx_fail(meta);
-
-	ctx->ctx.program	= program;
-	ctx->ctx.cctx		= &ctx->cctx;
-
-	*pctx = &ctx->ctx;
-	return SFRT_OK;
-}
-
-static void sfrt_free_driver_ctx_impl(struct sfrt_driver_ctx_alloc * ictx)
-{
-	argv_free(ictx->meta);
-	free(ictx);
-}
-
-void sfrt_free_driver_ctx(struct sfrt_driver_ctx * ctx)
-{
-	struct sfrt_driver_ctx_alloc *	ictx;
-	uintptr_t			addr;
-
-	if (ctx) {
-		addr = (uintptr_t)ctx - offsetof(struct sfrt_driver_ctx_impl,ctx);
-		addr = addr - offsetof(struct sfrt_driver_ctx_alloc,ctx);
-		ictx = (struct sfrt_driver_ctx_alloc *)addr;
-		sfrt_free_driver_ctx_impl(ictx);
-	}
-}
-
-const struct sfrt_source_version * sfrt_source_version(void)
-{
-	return &sfrt_src_version;
-}
-
-int sfrt_get_driver_fdctx(
-	const struct sfrt_driver_ctx *	dctx,
-	struct sfrt_fd_ctx *		fdctx)
-{
-	struct sfrt_driver_ctx_impl *	ictx;
-
-	ictx = sfrt_get_driver_ictx(dctx);
-
-	fdctx->fdin  = ictx->fdctx.fdin;
-	fdctx->fdout = ictx->fdctx.fdout;
-	fdctx->fderr = ictx->fdctx.fderr;
-	fdctx->fdlog = ictx->fdctx.fdlog;
-	fdctx->fdcwd = ictx->fdctx.fdcwd;
-	fdctx->fddst = ictx->fdctx.fddst;
-
-	return 0;
-}
-
-int sfrt_set_driver_fdctx(
-	struct sfrt_driver_ctx *	dctx,
-	const struct sfrt_fd_ctx *	fdctx)
-{
-	struct sfrt_driver_ctx_impl *	ictx;
-
-	ictx = sfrt_get_driver_ictx(dctx);
-
-	ictx->fdctx.fdin  = fdctx->fdin;
-	ictx->fdctx.fdout = fdctx->fdout;
-	ictx->fdctx.fderr = fdctx->fderr;
-	ictx->fdctx.fdlog = fdctx->fdlog;
-	ictx->fdctx.fdcwd = fdctx->fdcwd;
-	ictx->fdctx.fddst = fdctx->fddst;
-
-	return 0;
-}
diff --git a/src/driver/sfrt_unit_ctx.c b/src/driver/sfrt_unit_ctx.c
deleted file mode 100644
index 630fdba..0000000
--- a/src/driver/sfrt_unit_ctx.c
+++ /dev/null
@@ -1,61 +0,0 @@
-#include <stdint.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-
-#include <sofort/sofort.h>
-#include "sofort_driver_impl.h"
-#include "sofort_errinfo_impl.h"
-
-static int sfrt_free_unit_ctx_impl(struct sfrt_unit_ctx_impl * ctx, int ret)
-{
-	if (ctx) {
-		sfrt_unmap_input(&ctx->map);
-		free(ctx);
-	}
-
-	return ret;
-}
-
-int sfrt_get_unit_ctx(
-	const struct sfrt_driver_ctx *	dctx,
-	const char *			path,
-	struct sfrt_unit_ctx **		pctx)
-{
-	struct sfrt_unit_ctx_impl *	ctx;
-
-	if (!dctx)
-		return SFRT_CUSTOM_ERROR(
-			dctx,SFRT_ERR_NULL_CONTEXT);
-
-	else if (!(ctx = calloc(1,sizeof(*ctx))))
-		return SFRT_BUFFER_ERROR(dctx);
-
-	sfrt_driver_set_ectx(
-		dctx,0,path);
-
-	if (sfrt_map_input(dctx,-1,path,PROT_READ,&ctx->map))
-		return sfrt_free_unit_ctx_impl(ctx,
-			SFRT_NESTED_ERROR(dctx));
-
-	ctx->path	= path;
-
-	ctx->uctx.path	= &ctx->path;
-	ctx->uctx.map	= &ctx->map;
-
-	*pctx = &ctx->uctx;
-	return 0;
-}
-
-void sfrt_free_unit_ctx(struct sfrt_unit_ctx * ctx)
-{
-	struct sfrt_unit_ctx_impl *	ictx;
-	uintptr_t			addr;
-
-	if (ctx) {
-		addr = (uintptr_t)ctx - offsetof(struct sfrt_unit_ctx_impl,uctx);
-		ictx = (struct sfrt_unit_ctx_impl *)addr;
-		sfrt_free_unit_ctx_impl(ictx,0);
-	}
-}
diff --git a/src/empty.dir b/src/empty.dir
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/empty.dir
diff --git a/src/internal/argv/argv.h b/src/internal/argv/argv.h
deleted file mode 100644
index a730e76..0000000
--- a/src/internal/argv/argv.h
+++ /dev/null
@@ -1,942 +0,0 @@
-/****************************************************************************/
-/*  argv.h: a thread-safe argument vector parser and usage screen generator */
-/*  Copyright (C) 2015--2018  Z. Gilboa                                     */
-/*  Released under the Standard MIT License; see COPYING.SOFORT.            */
-/*  This file is (also) part of sofort: portable software project template. */
-/****************************************************************************/
-
-#ifndef ARGV_H
-#define ARGV_H
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <stddef.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#define ARGV_VERBOSITY_NONE		0x00
-#define ARGV_VERBOSITY_ERRORS		0x01
-#define ARGV_VERBOSITY_STATUS		0x02
-#define ARGV_CLONE_VECTOR		0x80
-
-#ifndef ARGV_TAB_WIDTH
-#define ARGV_TAB_WIDTH			8
-#endif
-
-/*******************************************/
-/*                                         */
-/* support of hybrid options               */
-/* -------------------------               */
-/* hybrid options are very similar to      */
-/* long options, yet are prefixed by       */
-/* a single dash rather than two           */
-/* (i.e. -std, -isystem).                  */
-/* hybrid options are supported by this    */
-/* driver for compatibility with legacy    */
-/* tools; note, however, that the use      */
-/* of hybrid options should be strongly    */
-/* discouraged due to the limitations      */
-/* they impose on short options (for       */
-/* example, a driver implementing -std     */
-/* may not provide -s as a short option    */
-/* that takes an arbitrary value).         */
-/*                                         */
-/* SPACE: -hybrid VALUE (i.e. -MF file)    */
-/* EQUAL: -hybrid=VALUE (i.e. -std=c99)    */
-/* COMMA: -hybrid,VALUE (i.e. -Wl,<arg>)   */
-/* ONLY:  -opt accepted, --opt rejected    */
-/* JOINED: -optVALUE                       */
-/*                                         */
-/*******************************************/
-
-
-#define ARGV_OPTION_HYBRID_NONE		0x00
-#define ARGV_OPTION_HYBRID_ONLY		0x01
-#define ARGV_OPTION_HYBRID_SPACE	0x02
-#define ARGV_OPTION_HYBRID_EQUAL	0x04
-#define ARGV_OPTION_HYBRID_COMMA	0x08
-#define ARGV_OPTION_HYBRID_JOINED	0x10
-#define ARGV_OPTION_HYBRID_CIRCUS	(ARGV_OPTION_HYBRID_SPACE \
-					| ARGV_OPTION_HYBRID_JOINED)
-#define ARGV_OPTION_HYBRID_DUAL		(ARGV_OPTION_HYBRID_SPACE \
-					| ARGV_OPTION_HYBRID_EQUAL)
-#define ARGV_OPTION_HYBRID_SWITCH	(ARGV_OPTION_HYBRID_ONLY \
-					| ARGV_OPTION_HYBRID_SPACE \
-					| ARGV_OPTION_HYBRID_EQUAL \
-					| ARGV_OPTION_HYBRID_COMMA \
-					| ARGV_OPTION_HYBRID_JOINED)
-
-enum argv_optarg {
-	ARGV_OPTARG_NONE,
-	ARGV_OPTARG_REQUIRED,
-	ARGV_OPTARG_OPTIONAL,
-};
-
-enum argv_mode {
-	ARGV_MODE_SCAN,
-	ARGV_MODE_COPY,
-};
-
-enum argv_error {
-	ARGV_ERROR_OK,
-	ARGV_ERROR_INTERNAL,
-	ARGV_ERROR_SHORT_OPTION,
-	ARGV_ERROR_LONG_OPTION,
-	ARGV_ERROR_OPTARG_NONE,
-	ARGV_ERROR_OPTARG_REQUIRED,
-	ARGV_ERROR_OPTARG_PARADIGM,
-	ARGV_ERROR_HYBRID_NONE,
-	ARGV_ERROR_HYBRID_ONLY,
-	ARGV_ERROR_HYBRID_SPACE,
-	ARGV_ERROR_HYBRID_EQUAL,
-	ARGV_ERROR_HYBRID_COMMA,
-};
-
-struct argv_option {
-	const char *		long_name;
-	const char		short_name;
-	int			tag;
-	enum argv_optarg	optarg;
-	int			flags;
-	const char *		paradigm;
-	const char *		argname;
-	const char *		description;
-};
-
-struct argv_entry {
-	const char *	arg;
-	int		tag;
-	bool		fopt;
-	bool		fval;
-	bool		fnoscan;
-	enum argv_error errcode;
-};
-
-struct argv_meta {
-	char **			argv;
-	struct argv_entry *	entries;
-};
-
-struct argv_ctx {
-	int				flags;
-	int				mode;
-	int				nentries;
-	intptr_t			unitidx;
-	intptr_t			erridx;
-	enum argv_error 		errcode;
-	const char *			errch;
-	const struct argv_option *	erropt;
-	const char *			program;
-};
-
-#ifdef ARGV_DRIVER
-
-struct argv_meta_impl {
-	char **			argv;
-	char *			strbuf;
-	struct argv_meta	meta;
-};
-
-static int argv_optv_init(
-	const struct argv_option[],
-	const struct argv_option **);
-
-static const char * argv_program_name(const char *);
-
-static void argv_usage(
-	int		fd,
-	const char *	header,
-	const struct	argv_option **,
-	const char *	mode);
-
-static struct argv_meta * argv_get(
-	char **,
-	const struct argv_option **,
-	int flags,
-	int fd);
-
-static void argv_free(struct argv_meta *);
-
-#ifndef argv_dprintf
-#define argv_dprintf dprintf
-#endif
-
-
-
-/*------------------------------------*/
-/* implementation of static functions */
-/*------------------------------------*/
-
-static int argv_optv_init(
-	const struct argv_option	options[],
-	const struct argv_option **	optv)
-{
-	const struct argv_option *	option;
-	int				i;
-
-	for (option=options,i=0; option->long_name || option->short_name; option++)
-		optv[i++] = option;
-
-	optv[i] = 0;
-	return i;
-}
-
-static const struct argv_option * argv_short_option(
-	const char *			ch,
-	const struct argv_option **	optv,
-	struct argv_entry *		entry)
-{
-	const struct argv_option *	option;
-
-	for (; *optv; optv++) {
-		option = *optv;
-
-		if (option->short_name == *ch) {
-			entry->tag	= option->tag;
-			entry->fopt	= true;
-			return option;
-		}
-	}
-
-	return 0;
-}
-
-static const struct argv_option * argv_long_option(
-	const char *			ch,
-	const struct argv_option **	optv,
-	struct argv_entry *		entry)
-{
-	const struct argv_option *	option;
-	const char *			arg;
-	size_t				len;
-
-	for (; *optv; optv++) {
-		option = *optv;
-		len    = option->long_name ? strlen(option->long_name) : 0;
-
-		if (len && !(strncmp(option->long_name,ch,len))) {
-			arg = ch + len;
-
-			if (!*arg
-				|| (*arg == '=')
-				|| (option->flags & ARGV_OPTION_HYBRID_JOINED)
-				|| ((option->flags & ARGV_OPTION_HYBRID_COMMA)
-					&& (*arg == ','))) {
-				entry->tag	= option->tag;
-				entry->fopt	= true;
-				return option;
-			}
-		}
-	}
-
-	return 0;
-}
-
-static inline bool is_short_option(const char * arg)
-{
-	return (arg[0]=='-') && arg[1] && (arg[1]!='-');
-}
-
-static inline bool is_long_option(const char * arg)
-{
-	return (arg[0]=='-') && (arg[1]=='-') && arg[2];
-}
-
-static inline bool is_last_option(const char * arg)
-{
-	return (arg[0]=='-') && (arg[1]=='-') && !arg[2];
-}
-
-static inline bool is_hybrid_option(
-	const char *			arg,
-	const struct argv_option **	optv)
-{
-	const struct argv_option *	option;
-	struct argv_entry		entry;
-
-	if (!is_short_option(arg))
-		return false;
-
-	if (!(option = argv_long_option(++arg,optv,&entry)))
-		return false;
-
-	if (!(option->flags & ARGV_OPTION_HYBRID_SWITCH))
-		if (argv_short_option(arg,optv,&entry))
-			return false;
-
-	return true;
-}
-
-static inline bool is_arg_in_paradigm(const char * arg, const char * paradigm)
-{
-	size_t		len;
-	const char *	ch;
-
-	for (ch=paradigm,len=strlen(arg); ch; ) {
-		if (!strncmp(arg,ch,len)) {
-			if (!*(ch += len))
-				return true;
-			else if (*ch == '|')
-				return true;
-		}
-
-		if ((ch = strchr(ch,'|')))
-			ch++;
-	}
-
-	return false;
-}
-
-static inline const struct argv_option * option_from_tag(
-	const struct argv_option **	optv,
-	int				tag)
-{
-	for (; *optv; optv++)
-		if (optv[0]->tag == tag)
-			return optv[0];
-	return 0;
-}
-
-static void argv_scan(
-	char **				argv,
-	const struct argv_option **	optv,
-	struct argv_ctx *		ctx,
-	struct argv_meta *		meta)
-{
-	char **				parg;
-	const char *			ch;
-	const char *			val;
-	const struct argv_option *	option;
-	struct argv_entry		entry;
-	struct argv_entry *		mentry;
-	enum argv_error			ferr;
-	bool				fval;
-	bool				fnext;
-	bool				fshort;
-	bool				fhybrid;
-	bool				fnoscan;
-
-	parg	= &argv[1];
-	ch	= *parg;
-	ferr	= ARGV_ERROR_OK;
-	fshort	= false;
-	fnoscan	= false;
-	fval	= false;
-	mentry	= meta ? meta->entries : 0;
-
-	ctx->unitidx = 0;
-	ctx->erridx  = 0;
-
-	while (ch && (ferr == ARGV_ERROR_OK)) {
-		option  = 0;
-		fhybrid = false;
-
-		if (fnoscan)
-			fval = true;
-
-		else if (is_last_option(ch))
-			fnoscan = true;
-
-		else if (!fshort && is_hybrid_option(ch,optv))
-			fhybrid = true;
-
-		if (!fnoscan && !fhybrid && (fshort || is_short_option(ch))) {
-			if (!fshort)
-				ch++;
-
-			if ((option = argv_short_option(ch,optv,&entry))) {
-				if (ch[1]) {
-					ch++;
-					fnext	= false;
-					fshort	= (option->optarg == ARGV_OPTARG_NONE);
-				} else {
-					parg++;
-					ch	= *parg;
-					fnext	= true;
-					fshort	= false;
-				}
-
-				if (option->optarg == ARGV_OPTARG_NONE) {
-					if (!fnext && ch && (*ch == '-')) {
-						ferr = ARGV_ERROR_OPTARG_NONE;
-					} else {
-						fval = false;
-					}
-
-				} else if (!fnext) {
-					fval = true;
-
-				} else if (option->optarg == ARGV_OPTARG_REQUIRED) {
-					if (ch && is_short_option(ch))
-						ferr = ARGV_ERROR_OPTARG_REQUIRED;
-					else if (ch && is_long_option(ch))
-						ferr = ARGV_ERROR_OPTARG_REQUIRED;
-					else if (ch && is_last_option(ch))
-						ferr = ARGV_ERROR_OPTARG_REQUIRED;
-					else if (ch)
-						fval = true;
-					else
-						ferr = ARGV_ERROR_OPTARG_REQUIRED;
-				} else {
-					/* ARGV_OPTARG_OPTIONAL */
-					if (ch && is_short_option(ch))
-						fval = false;
-					else if (ch && is_long_option(ch))
-						fval = false;
-					else if (ch && is_last_option(ch))
-						fval = false;
-					else if (fnext)
-						fval = false;
-					else
-						fval = ch;
-				}
-			} else {
-				ferr = ARGV_ERROR_SHORT_OPTION;
-			}
-
-		} else if (!fnoscan && (fhybrid || is_long_option(ch))) {
-			ch += (fhybrid ? 1 : 2);
-
-			if ((option = argv_long_option(ch,optv,&entry))) {
-				val = ch + strlen(option->long_name);
-
-				/* val[0] is either '=' (or ',') or '\0' */
-				if (!val[0]) {
-					parg++;
-					ch = *parg;
-				}
-
-				if (fhybrid && !(option->flags & ARGV_OPTION_HYBRID_SWITCH))
-					ferr = ARGV_ERROR_HYBRID_NONE;
-				else if (!fhybrid && (option->flags & ARGV_OPTION_HYBRID_ONLY))
-					ferr = ARGV_ERROR_HYBRID_ONLY;
-				else if (option->optarg == ARGV_OPTARG_NONE) {
-					if (val[0]) {
-						ferr = ARGV_ERROR_OPTARG_NONE;
-						ctx->errch = val + 1;
-					} else
-						fval = false;
-				} else if (val[0] && (option->flags & ARGV_OPTION_HYBRID_JOINED)) {
-					fval = true;
-					ch   = val;
-				} else if (fhybrid && !val[0] && !(option->flags & ARGV_OPTION_HYBRID_SPACE))
-					ferr = ARGV_ERROR_HYBRID_SPACE;
-				else if (fhybrid && (val[0]=='=') && !(option->flags & ARGV_OPTION_HYBRID_EQUAL))
-					ferr = ARGV_ERROR_HYBRID_EQUAL;
-				else if (fhybrid && (val[0]==',') && !(option->flags & ARGV_OPTION_HYBRID_COMMA))
-					ferr = ARGV_ERROR_HYBRID_COMMA;
-				else if (!fhybrid && (val[0]==','))
-					ferr = ARGV_ERROR_HYBRID_COMMA;
-				else if (val[0] && !val[1])
-					ferr = ARGV_ERROR_OPTARG_REQUIRED;
-				else if (val[0] && val[1]) {
-					fval = true;
-					ch   = ++val;
-				} else if (option->optarg == ARGV_OPTARG_REQUIRED) {
-					if (!val[0] && !*parg)
-						ferr = ARGV_ERROR_OPTARG_REQUIRED;
-					else if (*parg && is_short_option(*parg))
-						ferr = ARGV_ERROR_OPTARG_REQUIRED;
-					else if (*parg && is_long_option(*parg))
-						ferr = ARGV_ERROR_OPTARG_REQUIRED;
-					else if (*parg && is_last_option(*parg))
-						ferr = ARGV_ERROR_OPTARG_REQUIRED;
-					else
-						fval = true;
-				} else {
-					/* ARGV_OPTARG_OPTIONAL */
-					fval = val[0];
-				}
-			} else
-				ferr = ARGV_ERROR_LONG_OPTION;
-		}
-
-		if (ferr == ARGV_ERROR_OK)
-			if (option && fval && option->paradigm)
-				if (!is_arg_in_paradigm(ch,option->paradigm))
-					ferr = ARGV_ERROR_OPTARG_PARADIGM;
-
-		if (ferr == ARGV_ERROR_OK)
-			if (!option && !ctx->unitidx)
-				ctx->unitidx = parg - argv;
-
-		if (ferr != ARGV_ERROR_OK) {
-			ctx->errcode = ferr;
-			ctx->errch   = ctx->errch ? ctx->errch : ch;
-			ctx->erropt  = option;
-			ctx->erridx  = parg - argv;
-			return;
-		} else if (ctx->mode == ARGV_MODE_SCAN) {
-			if (!fnoscan)
-				ctx->nentries++;
-			else if (fval)
-				ctx->nentries++;
-
-			if (fval || !option) {
-				parg++;
-				ch = *parg;
-			}
-		} else if (ctx->mode == ARGV_MODE_COPY) {
-			if (fnoscan) {
-				if (fval) {
-					mentry->arg	= ch;
-					mentry->fnoscan = true;
-					mentry++;
-				}
-
-				parg++;
-				ch = *parg;
-			} else if (option) {
-				mentry->arg	= fval ? ch : 0;
-				mentry->tag	= option->tag;
-				mentry->fopt	= true;
-				mentry->fval	= fval;
-				mentry++;
-
-				if (fval) {
-					parg++;
-					ch = *parg;
-				}
-			} else {
-				mentry->arg = ch;
-				mentry++;
-				parg++;
-				ch = *parg;
-			}
-		}
-	}
-}
-
-static const char * argv_program_name(const char * program_path)
-{
-	const char * ch;
-
-	if (program_path) {
-		if ((ch = strrchr(program_path,'/')))
-			return *(++ch) ? ch : 0;
-
-		if ((ch = strrchr(program_path,'\\')))
-			return *(++ch) ? ch : 0;
-	}
-
-	return program_path;
-}
-
-static void argv_show_error(int fd, struct argv_ctx * ctx)
-{
-	char opt_short_name[2] = {0,0};
-
-	if (ctx->erropt && ctx->erropt->short_name)
-		opt_short_name[0] = ctx->erropt->short_name;
-
-	argv_dprintf(fd,"%s: error: ",ctx->program);
-
-	switch (ctx->errcode) {
-		case ARGV_ERROR_SHORT_OPTION:
-			argv_dprintf(fd,"'-%c' is not a valid short option\n",*ctx->errch);
-			break;
-
-		case ARGV_ERROR_LONG_OPTION:
-			argv_dprintf(fd,"'--%s' is not a valid long option\n",ctx->errch);
-			break;
-
-		case ARGV_ERROR_OPTARG_NONE:
-			argv_dprintf(fd,"'%s' is not a valid option value for [%s%s%s%s%s] "
-					"(option values may not be specified)\n",
-				ctx->errch,
-				opt_short_name[0] ? "-" : "",
-				opt_short_name,
-				opt_short_name[0] ? "," : "",
-				ctx->erropt->long_name ? "--" : "",
-				ctx->erropt->long_name);
-			break;
-
-		case ARGV_ERROR_OPTARG_REQUIRED:
-			argv_dprintf(fd,"option [%s%s%s%s%s] requires %s %s%s%s\n",
-				opt_short_name[0] ? "-" : "",
-				opt_short_name,
-				opt_short_name[0] ? "," : "",
-				ctx->erropt->long_name ? "--" : "",
-				ctx->erropt->long_name,
-				ctx->erropt->paradigm ? "one of the following values:" : "a value",
-				ctx->erropt->paradigm ? "{" : "",
-				ctx->erropt->paradigm ? ctx->erropt->paradigm : "",
-				ctx->erropt->paradigm ? "}" : "");
-			break;
-
-		case ARGV_ERROR_OPTARG_PARADIGM:
-			argv_dprintf(fd,"'%s' is not a valid option value for [%s%s%s%s%s]={%s}\n",
-				ctx->errch,
-				opt_short_name[0] ? "-" : "",
-				opt_short_name,
-				opt_short_name[0] ? "," : "",
-				ctx->erropt->long_name ? "--" : "",
-				ctx->erropt->long_name,
-				ctx->erropt->paradigm);
-			break;
-
-		case ARGV_ERROR_HYBRID_NONE:
-			argv_dprintf(fd,"-%s is not a synonym for --%s\n",
-				ctx->erropt->long_name,
-				ctx->erropt->long_name);
-			break;
-
-		case ARGV_ERROR_HYBRID_ONLY:
-			argv_dprintf(fd,"--%s is not a synonym for -%s\n",
-				ctx->erropt->long_name,
-				ctx->erropt->long_name);
-			break;
-
-		case ARGV_ERROR_HYBRID_SPACE:
-		case ARGV_ERROR_HYBRID_EQUAL:
-		case ARGV_ERROR_HYBRID_COMMA:
-			argv_dprintf(fd,"-%s: illegal value assignment; valid syntax is "
-					"-%s%sVAL\n",
-				ctx->erropt->long_name,
-				ctx->erropt->long_name,
-				(ctx->erropt->flags & ARGV_OPTION_HYBRID_SPACE)
-					? " " : (ctx->erropt->flags & ARGV_OPTION_HYBRID_EQUAL)
-					? "=" : (ctx->erropt->flags & ARGV_OPTION_HYBRID_COMMA)
-					? "," : "");
-
-			break;
-
-		case ARGV_ERROR_INTERNAL:
-			argv_dprintf(fd,"internal error");
-			break;
-
-		default:
-			break;
-	}
-}
-
-static void argv_show_status(
-	int				fd,
-	const struct argv_option **	optv,
-	struct argv_ctx *		ctx,
-	struct argv_meta *		meta)
-{
-	int				argc;
-	char **				argv;
-	struct argv_entry *		entry;
-	const struct argv_option *	option;
-	char				short_name[2] = {0};
-	const char *			space = "";
-
-	(void)ctx;
-
-	argv_dprintf(fd,"\n\nconcatenated command line:\n");
-	for (argv=meta->argv; *argv; argv++) {
-		argv_dprintf(fd,"%s%s",space,*argv);
-		space = " ";
-	}
-
-	argv_dprintf(fd,"\n\nargument vector:\n");
-	for (argc=0,argv=meta->argv; *argv; argc++,argv++)
-		argv_dprintf(fd,"argv[%d]: %s\n",argc,*argv);
-
-	argv_dprintf(fd,"\n\nparsed entries:\n");
-	for (entry=meta->entries; entry->arg || entry->fopt; entry++)
-		if (entry->fopt) {
-			option = option_from_tag(optv,entry->tag);
-			short_name[0] = option->short_name;
-
-			if (entry->fval)
-				argv_dprintf(fd,"[-%s,--%s] := %s\n",
-					short_name,option->long_name,entry->arg);
-			else
-				argv_dprintf(fd,"[-%s,--%s]\n",
-					short_name,option->long_name);
-		} else
-			argv_dprintf(fd,"<program arg> := %s\n",entry->arg);
-
-	argv_dprintf(fd,"\n\n");
-}
-
-static struct argv_meta * argv_free_impl(struct argv_meta_impl * imeta)
-{
-	if (imeta->argv)
-		free(imeta->argv);
-
-	if (imeta->strbuf)
-		free(imeta->strbuf);
-
-	if (imeta->meta.entries)
-		free(imeta->meta.entries);
-
-	free(imeta);
-	return 0;
-}
-
-static struct argv_meta * argv_alloc(char ** argv, struct argv_ctx * ctx)
-{
-	struct argv_meta_impl * imeta;
-	char **			vector;
-	char *			dst;
-	size_t			size;
-	int			argc;
-	int			i;
-
-	if (!(imeta = calloc(1,sizeof(*imeta))))
-		return 0;
-
-	if (ctx->flags & ARGV_CLONE_VECTOR) {
-		for (vector=argv,argc=0,size=0; *vector; vector++) {
-			size += strlen(*vector) + 1;
-			argc++;
-		}
-
-		if (!(imeta->argv = calloc(argc+1,sizeof(char *))))
-			return argv_free_impl(imeta);
-		else if (!(imeta->strbuf = calloc(1,size+1)))
-			return argv_free_impl(imeta);
-
-		for (i=0,dst=imeta->strbuf; i<argc; i++) {
-			strcpy(dst,argv[i]);
-			imeta->argv[i] = dst;
-			dst += strlen(dst)+1;
-		}
-
-		imeta->meta.argv = imeta->argv;
-	} else
-		imeta->meta.argv = argv;
-
-	if (!(imeta->meta.entries = calloc(
-				ctx->nentries+1,
-				sizeof(struct argv_entry))))
-		return argv_free_impl(imeta);
-	else
-		return &imeta->meta;
-}
-
-static struct argv_meta * argv_get(
-	char **				argv,
-	const struct argv_option **	optv,
-	int				flags,
-	int				fd)
-{
-	struct argv_meta *	meta;
-	struct argv_ctx		ctx = {flags,ARGV_MODE_SCAN,0,0,0,0,0,0,0};
-
-	argv_scan(argv,optv,&ctx,0);
-
-	if (ctx.errcode != ARGV_ERROR_OK) {
-		ctx.program = argv_program_name(argv[0]);
-
-		if (ctx.flags & ARGV_VERBOSITY_ERRORS)
-			argv_show_error(fd,&ctx);
-
-		return 0;
-	}
-
-	if (!(meta = argv_alloc(argv,&ctx)))
-		return 0;
-
-	ctx.mode = ARGV_MODE_COPY;
-	argv_scan(meta->argv,optv,&ctx,meta);
-
-	if (ctx.errcode != ARGV_ERROR_OK) {
-		ctx.program = argv[0];
-		ctx.errcode = ARGV_ERROR_INTERNAL;
-		argv_show_error(fd,&ctx);
-		argv_free(meta);
-
-		return 0;
-	}
-
-	if (ctx.flags & ARGV_VERBOSITY_STATUS)
-		argv_show_status(fd,optv,&ctx,meta);
-
-	return meta;
-}
-
-static void argv_free(struct argv_meta * xmeta)
-{
-	struct argv_meta_impl * imeta;
-	uintptr_t		addr;
-
-	if (xmeta) {
-		addr  = (uintptr_t)xmeta - offsetof(struct argv_meta_impl,meta);
-		imeta = (struct argv_meta_impl *)addr;
-		argv_free_impl(imeta);
-	}
-}
-
-static void argv_usage(
-	int				fd,
-	const char *    		header,
-	const struct argv_option **	options,
-	const char *			mode)
-{
-	const struct argv_option **	optv;
-	const struct argv_option *	option;
-	bool				fshort,flong,fboth;
-	size_t				len,optlen,desclen;
-	char				cache;
-	char *				prefix;
-	char *				desc;
-	char *				mark;
-	char *				cap;
-	char				description[4096];
-	char				optstr     [72];
-	const size_t			optcap    = 64;
-	const size_t			width     = 80;
-	const char			indent[]  = "  ";
-	const char			creset[]  = "\x1b[0m";
-	const char			cbold []  = "\x1b[1m";
-	const char			cgreen[]  = "\x1b[32m";
-	const char			cblue []  = "\x1b[34m";
-	const char			ccyan []  = "\x1b[36m";
-	const char *			color     = ccyan;
-	bool				fcolor;
-
-	fshort = mode ? !strcmp(mode,"short") : 0;
-	flong  = fshort ? 0 : mode && !strcmp(mode,"long");
-	fboth  = !fshort && !flong;
-	fcolor = isatty(fd);
-
-	if (fcolor)
-		argv_dprintf(fd,"%s%s",cbold,cgreen);
-
-	if (header)
-		argv_dprintf(fd,"%s",header);
-
-	for (optlen=0,optv=options; *optv; optv++) {
-		option = *optv;
-
-		/* indent + comma */
-		len = fboth ? sizeof(indent) + 1 : sizeof(indent);
-
-		/* -o */
-		if (fshort || fboth)
-			len += option->short_name
-				? 2 : 0;
-
-		/* --option */
-		if (flong || fboth)
-			len += option->long_name
-				? 2 + strlen(option->long_name) : 0;
-
-		/* optlen */
-		if (len > optlen)
-			optlen = len;
-	}
-
-	if (optlen >= optcap) {
-		argv_dprintf(fd,
-			"Option strings exceed %zu characters, "
-			"please generate the usage screen manually.\n",
-			optcap);
-		return;
-	}
-
-	optlen += ARGV_TAB_WIDTH;
-	optlen &= (~(ARGV_TAB_WIDTH-1));
-	desclen = (optlen < width / 2) ? width - optlen : optlen;
-
-	for (optv=options; *optv; optv++) {
-		option = *optv;
-
-		/* color */
-		if (fcolor) {
-			color = (color == ccyan) ? cblue : ccyan;
-			argv_dprintf(fd,color);
-		}
-
-		/* description, using either paradigm or argname if applicable */
-		snprintf(description,sizeof(description),option->description,
-			option->paradigm
-				? option->paradigm
-				: option->argname ? option->argname : "");
-		description[sizeof(description)-1] = 0;
-
-		/* long/hybrid option prefix (-/--) */
-		prefix = option->flags & ARGV_OPTION_HYBRID_ONLY
-				? " -" : "--";
-
-		/* option string */
-		if (fboth && option->short_name && option->long_name)
-			sprintf(optstr,"%s-%c,%s%s",
-				indent,option->short_name,prefix,option->long_name);
-
-		else if ((fshort || fboth) && option->short_name)
-			sprintf(optstr,"%s-%c",indent,option->short_name);
-
-		else if (flong && option->long_name)
-			sprintf(optstr,"%s%s%s",
-				indent,prefix,option->long_name);
-
-		else if (fboth && option->long_name)
-			sprintf(optstr,"%s   %s%s",
-				indent,prefix,option->long_name);
-
-		else
-			optstr[0] = 0;
-
-		/* right-indented option buffer */
-		if (description[0]) {
-			len = strlen(optstr);
-			sprintf(&optstr[len],"%-*c",(int)(optlen-len),' ');
-		}
-
-		/* single line? */
-		if (optlen + strlen(description) < width) {
-			argv_dprintf(fd,"%s%s\n",optstr,description);
-
-		} else {
-			desc = description;
-			cap  = desc + strlen(description);
-
-			while (desc < cap) {
-				mark = (desc + desclen >= cap)
-					? cap : desc + desclen;
-
-				while (*mark && (mark > desc)
-						&& (*mark != ' ')
-						&& (*mark != '|')
-						&& (*mark != '\t')
-						&& (*mark != '\n'))
-					mark--;
-
-				if (mark == desc) {
-					mark = (desc + desclen >= cap)
-						? cap : desc + desclen;
-					cache = *mark;
-					*mark = 0;
-				} else if (*mark == '|') {
-					cache = *mark;
-					*mark = 0;
-				} else {
-					cache = 0;
-					*mark = 0;
-				}
-
-				/* first line? */
-				if (desc == description)
-					argv_dprintf(fd,"%s%s\n",optstr,desc);
-				else
-					argv_dprintf(fd,"%-*c %s\n",
-						(*desc == '|')
-							? (int)(optlen+1)
-							: (int)optlen,
-						' ',desc);
-
-				if (cache)
-					*mark = cache;
-				else
-					mark++;
-
-				desc = mark;
-			}
-		}
-	}
-
-	if (fcolor)
-		argv_dprintf(fd,creset);
-}
-
-#endif
-
-#endif
diff --git a/src/internal/sofort_dprintf_impl.c b/src/internal/sofort_dprintf_impl.c
deleted file mode 100644
index 01f1ee1..0000000
--- a/src/internal/sofort_dprintf_impl.c
+++ /dev/null
@@ -1,56 +0,0 @@
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-
-int sfrt_dprintf(int fd, const char * fmt, ...)
-{
-	int	ret;
-	int	cnt;
-	int	size;
-	va_list	ap;
-	char *	ch;
-	char *	buf;
-	char	chbuf[2048];
-
-	va_start(ap,fmt);
-
-	size = sizeof(chbuf);
-	buf  = ((cnt = vsnprintf(chbuf,size,fmt,ap)) < size)
-		? chbuf : malloc(cnt + 1);
-
-	va_end(ap);
-
-	if (buf == chbuf) {
-		(void)0;
-
-	} else if (buf) {
-		va_start(ap,fmt);
-		vsprintf(buf,fmt,ap);
-		va_end(ap);
-
-	} else {
-		return -1;
-	}
-
-	ret = 0;
-	ch  = buf;
-
-	for (; cnt && ret>=0; ) {
-		ret = write(fd,ch,cnt);
-
-		while ((ret < 0) && (errno == EINTR))
-			ret = write(fd,ch,cnt);
-
-		ch  += ret;
-		cnt -= ret;
-	}
-
-	ret = (ret < 0) ? -1 : ch - buf;
-
-	if (buf != chbuf)
-		free(buf);
-
-	return ret;
-}
diff --git a/src/internal/sofort_dprintf_impl.h b/src/internal/sofort_dprintf_impl.h
deleted file mode 100644
index 1508ffc..0000000
--- a/src/internal/sofort_dprintf_impl.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef SOFORT_DPRINTF_IMPL_H
-#define SOFORT_DPRINTF_IMPL_H
-
-#ifdef  ARGV_DRIVER
-#define argv_dprintf sfrt_dprintf
-#endif
-
-int sfrt_dprintf(int fd, const char * fmt, ...);
-
-#endif
diff --git a/src/internal/sofort_driver_impl.h b/src/internal/sofort_driver_impl.h
deleted file mode 100644
index a7615ad..0000000
--- a/src/internal/sofort_driver_impl.h
+++ /dev/null
@@ -1,108 +0,0 @@
-#ifndef SOFORT_DRIVER_IMPL_H
-#define SOFORT_DRIVER_IMPL_H
-
-#include <stdint.h>
-#include <stdio.h>
-#include <sys/types.h>
-
-#include <sofort/sofort.h>
-#include "sofort_dprintf_impl.h"
-#include "argv/argv.h"
-
-#define SFRT_OPTV_ELEMENTS 64
-
-extern const struct argv_option sfrt_default_options[];
-
-enum app_tags {
-	TAG_HELP,
-	TAG_VERSION,
-	TAG_OUTPUT_DUMMY,	/* dummy */
-	TAG_OUTPUT_PROPERTY,	/* dummy */
-};
-
-struct sfrt_driver_ctx_impl {
-	struct sfrt_common_ctx          cctx;
-	struct sfrt_driver_ctx	        ctx;
-	struct sfrt_fd_ctx		fdctx;
-	const  struct sfrt_unit_ctx *   euctx;
-	const  char *                   eunit;
-	struct sfrt_error_info **       errinfp;
-	struct sfrt_error_info **       erricap;
-	struct sfrt_error_info *        erriptr[64];
-	struct sfrt_error_info	        erribuf[64];
-};
-
-struct sfrt_unit_ctx_impl {
-	const char *		path;
-	struct sfrt_input	map;
-	struct sfrt_unit_ctx	uctx;
-};
-
-static inline struct sfrt_driver_ctx_impl * sfrt_get_driver_ictx(
-	const struct sfrt_driver_ctx * dctx)
-{
-        uintptr_t addr;
-
-        if (dctx) {
-                addr = (uintptr_t)dctx - offsetof(struct sfrt_driver_ctx_impl,ctx);
-                return (struct sfrt_driver_ctx_impl *)addr;
-        }
-
-        return 0;
-}
-
-static inline void sfrt_driver_set_ectx(
-	const struct sfrt_driver_ctx * dctx,
-	const struct sfrt_unit_ctx *   uctx,
-	const char *                   unit)
-{
-	struct sfrt_driver_ctx_impl *  ictx;
-
-	ictx        = sfrt_get_driver_ictx(dctx);
-	ictx->euctx = uctx;
-	ictx->eunit = unit;
-}
-
-static inline int sfrt_driver_fdin(const struct sfrt_driver_ctx * dctx)
-{
-	struct sfrt_fd_ctx fdctx;
-	sfrt_get_driver_fdctx(dctx,&fdctx);
-	return fdctx.fdin;
-}
-
-static inline int sfrt_driver_fdout(const struct sfrt_driver_ctx * dctx)
-{
-	struct sfrt_fd_ctx fdctx;
-	sfrt_get_driver_fdctx(dctx,&fdctx);
-	return fdctx.fdout;
-}
-
-static inline int sfrt_driver_fderr(const struct sfrt_driver_ctx * dctx)
-{
-	struct sfrt_fd_ctx fdctx;
-	sfrt_get_driver_fdctx(dctx,&fdctx);
-	return fdctx.fderr;
-}
-
-static inline int sfrt_driver_fdlog(const struct sfrt_driver_ctx * dctx)
-{
-	struct sfrt_fd_ctx fdctx;
-	sfrt_get_driver_fdctx(dctx,&fdctx);
-	return fdctx.fdlog;
-}
-
-static inline int sfrt_driver_fdcwd(const struct sfrt_driver_ctx * dctx)
-{
-	struct sfrt_fd_ctx fdctx;
-	sfrt_get_driver_fdctx(dctx,&fdctx);
-	return fdctx.fdcwd;
-}
-
-static inline int sfrt_driver_fddst(const struct sfrt_driver_ctx * dctx)
-{
-	struct sfrt_fd_ctx fdctx;
-	sfrt_get_driver_fdctx(dctx,&fdctx);
-	return fdctx.fddst;
-}
-
-#endif
diff --git a/src/internal/sofort_errinfo_impl.c b/src/internal/sofort_errinfo_impl.c
deleted file mode 100644
index 31b008a..0000000
--- a/src/internal/sofort_errinfo_impl.c
+++ /dev/null
@@ -1,39 +0,0 @@
-#include <sofort/sofort.h>
-#include "sofort_driver_impl.h"
-#include "sofort_errinfo_impl.h"
-
-int sfrt_record_error(
-	const struct sfrt_driver_ctx *	dctx,
-	int				esyscode,
-	int				elibcode,
-	const char *			efunction,
-	int				eline,
-	unsigned			eflags,
-	void *				eany)
-{
-	struct sfrt_driver_ctx_impl *	ictx;
-	struct sfrt_error_info *	erri;
-
-	ictx = sfrt_get_driver_ictx(dctx);
-
-	if (ictx->errinfp == ictx->erricap)
-		return -1;
-
-	*ictx->errinfp = &ictx->erribuf[ictx->errinfp - ictx->erriptr];
-	erri = *ictx->errinfp;
-
-	erri->euctx     = ictx->euctx;
-	erri->eunit     = ictx->eunit;
-
-	erri->edctx     = dctx;
-	erri->esyscode  = esyscode;
-	erri->elibcode  = elibcode;
-	erri->efunction = efunction;
-	erri->eline     = eline;
-	erri->eflags    = eflags;
-	erri->eany      = eany;
-
-	ictx->errinfp++;
-
-	return -1;
-}
diff --git a/src/internal/sofort_errinfo_impl.h b/src/internal/sofort_errinfo_impl.h
deleted file mode 100644
index 8d42fc3..0000000
--- a/src/internal/sofort_errinfo_impl.h
+++ /dev/null
@@ -1,74 +0,0 @@
-#include <errno.h>
-#include <sofort/sofort.h>
-
-int sfrt_record_error(
-	const struct sfrt_driver_ctx *,
-	int		esyscode,
-	int		elibcode,
-	const char *	efunction,
-	int		eline,
-	unsigned	eflags,
-	void *		ectx);
-
-#define SFRT_SYSTEM_ERROR(dctx)           \
-	sfrt_record_error(                \
-		dctx,                     \
-		errno,                    \
-		0,                        \
-		__func__,                 \
-		__LINE__,                 \
-		SFRT_ERROR_TOP_LEVEL,     \
-		0)
-
-#define SFRT_BUFFER_ERROR(dctx)           \
-	sfrt_record_error(                \
-		dctx,                     \
-		ENOBUFS,                  \
-		0,                        \
-		__func__,                 \
-		__LINE__,                 \
-		SFRT_ERROR_TOP_LEVEL,     \
-		0)
-
-#define SFRT_SPAWN_ERROR(dctx)            \
-	sfrt_record_error(                \
-		dctx,                     \
-		errno,                    \
-		0,                        \
-		__func__,                 \
-		__LINE__,                 \
-		SFRT_ERROR_TOP_LEVEL      \
-		| (errno ? 0              \
-		   : SFRT_ERROR_CHILD),   \
-		0)
-
-#define SFRT_FILE_ERROR(dctx)             \
-	sfrt_record_error(                \
-		dctx,                     \
-		EIO,                      \
-		0,                        \
-		__func__,                 \
-		__LINE__,                 \
-		SFRT_ERROR_TOP_LEVEL,     \
-		0)
-
-#define SFRT_CUSTOM_ERROR(dctx,elibcode)  \
-	sfrt_record_error(                \
-		dctx,                     \
-		0,                        \
-		elibcode,                 \
-		__func__,                 \
-		__LINE__,                 \
-		SFRT_ERROR_TOP_LEVEL      \
-		| SFRT_ERROR_CUSTOM,      \
-		0)
-
-#define SFRT_NESTED_ERROR(dctx)           \
-	sfrt_record_error(                \
-		dctx,                     \
-		0,                        \
-		0,                        \
-		__func__,                 \
-		__LINE__,                 \
-		SFRT_ERROR_NESTED,        \
-		0)
diff --git a/src/logic/sfrt_map_input.c b/src/logic/sfrt_map_input.c
deleted file mode 100644
index aba0427..0000000
--- a/src/logic/sfrt_map_input.c
+++ /dev/null
@@ -1,60 +0,0 @@
-#include <stdint.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <sofort/sofort.h>
-#include "sofort_driver_impl.h"
-#include "sofort_errinfo_impl.h"
-
-int sfrt_map_input(
-	const struct sfrt_driver_ctx *	dctx,
-	int				fd,
-	const char *			path,
-	int				prot,
-	struct sfrt_input *		map)
-{
-	int		ret;
-	struct stat	st;
-	bool		fnew;
-	int		fdcwd;
-
-	fdcwd = sfrt_driver_fdcwd(dctx);
-
-	if ((fnew = (fd < 0)))
-		fd  = openat(fdcwd,path,O_RDONLY|O_CLOEXEC);
-
-	if (fd < 0)
-		return SFRT_SYSTEM_ERROR(dctx);
-
-	if ((ret = fstat(fd,&st) < 0) && fnew)
-		close(fd);
-
-	else if ((st.st_size == 0) && fnew)
-		close(fd);
-
-	if (ret < 0)
-		return SFRT_SYSTEM_ERROR(dctx);
-
-	else if (st.st_size == 0)
-		return SFRT_CUSTOM_ERROR(
-			dctx,SFRT_ERR_SOURCE_SIZE_ZERO);
-
-	map->size = st.st_size;
-	map->addr = mmap(0,map->size,prot,MAP_PRIVATE,fd,0);
-
-	if (fnew)
-		close(fd);
-
-	return (map->addr == MAP_FAILED)
-		? SFRT_SYSTEM_ERROR(dctx)
-		: 0;
-}
-
-int sfrt_unmap_input(struct sfrt_input * map)
-{
-	return munmap(map->addr,map->size);
-}
diff --git a/src/output/sfrt_output_address.c b/src/output/sfrt_output_address.c
deleted file mode 100644
index c9b16a1..0000000
--- a/src/output/sfrt_output_address.c
+++ /dev/null
@@ -1,20 +0,0 @@
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-#include <sofort/sofort.h>
-#include "sofort_driver_impl.h"
-#include "sofort_dprintf_impl.h"
-
-int sfrt_output_address(
-	const struct sfrt_driver_ctx *	dctx,
-	const struct sfrt_unit_ctx *	uctx)
-{
-	return sfrt_dprintf(
-		sfrt_driver_fdout(dctx),
-		"%*p\n",
-		(int)(2*sizeof(size_t)),
-		uctx->map->addr);
-}
diff --git a/src/output/sfrt_output_dummy.c b/src/output/sfrt_output_dummy.c
deleted file mode 100644
index c29f7e1..0000000
--- a/src/output/sfrt_output_dummy.c
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-#include <sofort/sofort.h>
-#include "sofort_driver_impl.h"
-#include "sofort_dprintf_impl.h"
-
-int sfrt_output_dummy (const struct sfrt_driver_ctx * dctx)
-{
-	return sfrt_dprintf(
-		sfrt_driver_fdout(dctx),
-		"%s\n",
-		dctx->cctx->anystring
-			? dctx->cctx->anystring
-			: "(null)");
-}
diff --git a/src/output/sfrt_output_error.c b/src/output/sfrt_output_error.c
deleted file mode 100644
index 24cb21a..0000000
--- a/src/output/sfrt_output_error.c
+++ /dev/null
@@ -1,229 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-
-#include <sofort/sofort.h>
-#include "sofort_driver_impl.h"
-#include "sofort_dprintf_impl.h"
-
-static const char aclr_reset[]   = "\x1b[0m";
-static const char aclr_bold[]    = "\x1b[1m";
-
-static const char aclr_red[]     = "\x1b[31m";
-static const char aclr_green[]   = "\x1b[32m";
-static const char aclr_blue[]    = "\x1b[34m";
-static const char aclr_magenta[] = "\x1b[35m";
-
-static const char const * const sfrt_error_strings[SFRT_ERR_CAP] = {
-	[SFRT_ERR_FLOW_ERROR]       = "flow error: unexpected condition or other",
-	[SFRT_ERR_FLEE_ERROR]       = "flees and bugs and cats and mice",
-	[SFRT_ERR_NULL_CONTEXT]     = "null driver or unit context",
-	[SFRT_ERR_NULL_SOURCE]      = "source file does not define any data",
-	[SFRT_ERR_INVALID_CONTEXT]  = "invalid driver or unit context",
-	[SFRT_ERR_INVALID_SOURCE]   = "invalid source file",
-	[SFRT_ERR_SOURCE_SIZE_ZERO] = "cannot map an empty source file",
-};
-
-static const char * sfrt_output_error_header(const struct sfrt_error_info * erri)
-{
-	if (erri->eflags & SFRT_ERROR_CHILD)
-		return "exec error upon";
-
-	else if (erri->eflags & SFRT_ERROR_TOP_LEVEL)
-		return "error logged in";
-
-	else if (erri->eflags & SFRT_ERROR_NESTED)
-		return "< returned to >";
-
-	else
-		return "distorted state";
-}
-
-static const char * sfrt_output_unit_header(const struct sfrt_error_info * erri)
-{
-	if (!(erri->eflags & SFRT_ERROR_CUSTOM))
-		return "while opening";
-
-	else if (erri->elibcode == SFRT_ERR_SOURCE_SIZE_ZERO)
-		return "while mapping";
-
-	else
-		return "while parsing";
-}
-
-static const char * sfrt_output_strerror(
-	const struct sfrt_error_info * erri,
-	char (*errbuf)[256])
-{
-	if (erri->eflags & SFRT_ERROR_CUSTOM)
-		return ((erri->elibcode < 0) || (erri->elibcode >= SFRT_ERR_CAP))
-			? "internal error: please report to the maintainer"
-			: sfrt_error_strings[erri->elibcode];
-
-	else if (erri->eflags & SFRT_ERROR_NESTED)
-		return "";
-
-	else if (erri->eflags & SFRT_ERROR_CHILD)
-		return "(see child process error messages)";
-
-	else if (erri->esyscode == ENOBUFS)
-		return "input error: string length exceeds buffer size.";
-
-	else
-		return strerror_r(erri->esyscode,*errbuf,sizeof(*errbuf))
-			? "internal error: strerror_r(3) call failed"
-			: *errbuf;
-}
-
-static int sfrt_output_error_record_plain(
-	const struct sfrt_driver_ctx *	dctx,
-	const struct sfrt_error_info *	erri)
-{
-	const char * epath;
-	char         errbuf[256];
-
-	int          fderr   = sfrt_driver_fderr(dctx);
-	const char * errdesc = sfrt_output_strerror(erri,&errbuf);
-
-	epath = erri->euctx
-		? *erri->euctx->path
-		: erri->eunit;
-
-	if (epath && !(erri->eflags & SFRT_ERROR_NESTED))
-		if (sfrt_dprintf(
-				fderr,
-				"%s: [%s] '%s':\n",
-				dctx->program,
-				sfrt_output_unit_header(erri),
-				epath) < 0)
-			return -1;
-
-	if (sfrt_dprintf(
-			fderr,
-			"%s: %s %s(), line %d%s%s.\n",
-			dctx->program,
-			sfrt_output_error_header(erri),
-			erri->efunction,
-			erri->eline,
-			strlen(errdesc) ? ": " : "",
-			errdesc) < 0)
-		return -1;
-
-	return 0;
-}
-
-static int sfrt_output_error_record_annotated(
-	const struct sfrt_driver_ctx *	dctx,
-	const struct sfrt_error_info *	erri)
-{
-	const char * epath;
-	char         errbuf[256];
-
-	int          fderr   = sfrt_driver_fderr(dctx);
-	const char * errdesc = sfrt_output_strerror(erri,&errbuf);
-
-	epath = erri->euctx
-		? *erri->euctx->path
-		: erri->eunit;
-
-	if (epath && !(erri->eflags & SFRT_ERROR_NESTED))
-		if (sfrt_dprintf(
-				fderr,
-				"%s%s%s:%s %s[%s]%s %s%s'%s'%s:\n",
-
-				aclr_bold,aclr_magenta,
-				dctx->program,
-				aclr_reset,
-
-				aclr_bold,
-				sfrt_output_unit_header(erri),
-				aclr_reset,
-
-				aclr_bold,aclr_red,
-				epath,
-				aclr_reset) < 0)
-			return -1;
-
-	if (sfrt_dprintf(
-			fderr,
-			"%s%s%s:%s %s%s%s %s%s%s()%s, %s%sline %d%s%s%s%s%s.\n",
-
-			aclr_bold,aclr_magenta,
-			dctx->program,
-			aclr_reset,
-
-			aclr_bold,
-			sfrt_output_error_header(erri),
-			aclr_reset,
-
-			aclr_bold,aclr_blue,
-			erri->efunction,
-			aclr_reset,
-
-			aclr_bold,aclr_green,
-			erri->eline,
-			aclr_reset,
-			strlen(errdesc) ? ": " : "",
-
-			aclr_bold,
-			errdesc,
-			aclr_reset) < 0)
-		return -1;
-
-	return 0;
-}
-
-int sfrt_output_error_record(
-	const struct sfrt_driver_ctx *	dctx,
-	const struct sfrt_error_info *	erri)
-{
-	if (dctx->cctx->drvflags & SFRT_DRIVER_ANNOTATE_NEVER)
-		return sfrt_output_error_record_plain(dctx,erri);
-
-	else if (dctx->cctx->drvflags & SFRT_DRIVER_ANNOTATE_ALWAYS)
-		return sfrt_output_error_record_annotated(dctx,erri);
-
-	else if (isatty(sfrt_driver_fderr(dctx)))
-		return sfrt_output_error_record_annotated(dctx,erri);
-
-	else
-		return sfrt_output_error_record_plain(dctx,erri);
-}
-
-static int sfrt_output_error_vector_plain(const struct sfrt_driver_ctx * dctx)
-{
-	struct sfrt_error_info ** perr;
-
-	for (perr=dctx->errv; *perr; perr++)
-		if (sfrt_output_error_record_plain(dctx,*perr))
-			return -1;
-
-	return 0;
-}
-
-static int sfrt_output_error_vector_annotated(const struct sfrt_driver_ctx * dctx)
-{
-	struct sfrt_error_info ** perr;
-
-	for (perr=dctx->errv; *perr; perr++)
-		if (sfrt_output_error_record_annotated(dctx,*perr))
-			return -1;
-
-	return 0;
-}
-
-int sfrt_output_error_vector(const struct sfrt_driver_ctx * dctx)
-{
-	if (dctx->cctx->drvflags & SFRT_DRIVER_ANNOTATE_NEVER)
-		return sfrt_output_error_vector_plain(dctx);
-
-	else if (dctx->cctx->drvflags & SFRT_DRIVER_ANNOTATE_ALWAYS)
-		return sfrt_output_error_vector_annotated(dctx);
-
-	else if (isatty(sfrt_driver_fderr(dctx)))
-		return sfrt_output_error_vector_annotated(dctx);
-
-	else
-		return sfrt_output_error_vector_plain(dctx);
-}
diff --git a/src/output/sfrt_output_name.c b/src/output/sfrt_output_name.c
deleted file mode 100644
index 7eb874e..0000000
--- a/src/output/sfrt_output_name.c
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-#include <sofort/sofort.h>
-#include "sofort_driver_impl.h"
-#include "sofort_dprintf_impl.h"
-
-int sfrt_output_name(
-	const struct sfrt_driver_ctx *	dctx,
-	const struct sfrt_unit_ctx *	uctx)
-{
-	return sfrt_dprintf(
-		sfrt_driver_fdout(dctx),
-		"%s\n",
-		*uctx->path);
-}
diff --git a/src/skin/sfrt_skin_default.c b/src/skin/sfrt_skin_default.c
deleted file mode 100644
index 9ac7957..0000000
--- a/src/skin/sfrt_skin_default.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#include "sofort_driver_impl.h"
-#include "argv/argv.h"
-
-const struct argv_option sfrt_default_options[] = {
-	{"version",		'v',TAG_VERSION,ARGV_OPTARG_NONE,0,0,0,
-				"show version information"},
-
-	{"help",		'h',TAG_HELP,ARGV_OPTARG_OPTIONAL,0,"short|long",0,
-				"show usage information [listing %s options only]"},
-
-	{"output-dummy",	'o',TAG_OUTPUT_DUMMY,ARGV_OPTARG_REQUIRED,0,0,"<anystring>",	/* dummy */
-				"output %s"},							/* dummy */
-												/* dummy */
-	{"output-property",	'p',TAG_OUTPUT_PROPERTY,ARGV_OPTARG_REQUIRED,0,"name|address",0,/* dummy */
-				"output %s"},							/* dummy */
-												/* dummy */
-	{0,0,0,0,0,0,0,0}
-};
diff --git a/src/sofort.c b/src/sofort.c
deleted file mode 100644
index 0c1279e..0000000
--- a/src/sofort.c
+++ /dev/null
@@ -1,6 +0,0 @@
-#include <sofort/sofort.h>
-
-int main(int argc, char ** argv, char ** envp)
-{
-	return sfrt_main(argv,envp,0);
-}