Update README.adoc

CMakeLists.txt

@@ -36,9 +36,9 @@ include (GNUInstallDirs)
 # sdn-mc-ext should be in libexec, but we prefer it in PATH.
 install (TARGETS sdn sdn-mc-ext
 	DESTINATION ${CMAKE_INSTALL_BINDIR})
-install (PROGRAMS sdn-install sdn-open sdn-view
+install (PROGRAMS sdn-install sdn-open sdn-view sdn-edit
 	DESTINATION ${CMAKE_INSTALL_BINDIR})
-install (FILES sdn.1 sdn-install.1 sdn-open.1 sdn-view.1
+install (FILES sdn.1 sdn-install.1 sdn-open.1 sdn-view.1 sdn-edit.1
 	DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 install (FILES LICENSE DESTINATION ${CMAKE_INSTALL_DOCDIR})
 
@@ -46,7 +46,7 @@ set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "Directory navigator")
 set (CPACK_PACKAGE_VENDOR "Premysl Eric Janouch")
 set (CPACK_PACKAGE_CONTACT "Přemysl Eric Janouch <p@janouch.name>")
 set (CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/LICENSE")
-set (CPACK_GENERATOR "TGZ;ZIP")
+set (CPACK_GENERATOR "TGZ")
 set (CPACK_PACKAGE_FILE_NAME
 	"${PROJECT_NAME}-${PROJECT_VERSION}-${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR}")
 set (CPACK_PACKAGE_INSTALL_DIRECTORY "${PROJECT_NAME}-${PROJECT_VERSION}")
@@ -54,5 +54,8 @@ set (CPACK_SOURCE_GENERATOR "TGZ;ZIP")
 set (CPACK_SOURCE_IGNORE_FILES "/\\\\.git;/build;/CMakeLists.txt.user")
 set (CPACK_SOURCE_PACKAGE_FILE_NAME "${PROJECT_NAME}-${PROJECT_VERSION}")
 
+set (CPACK_DEBIAN_PACKAGE_RECOMMENDS "mc")
+set (CPACK_DEBIAN_PACKAGE_SECTION "utils")
+
 set (CPACK_SET_DESTDIR TRUE)
 include (CPack)

NEWS

@@ -1,3 +1,9 @@
+Unreleased
+
+ * Added an sdn-edit script analogous to sdn-view, bound it to F4,
+   and moved the original key binding to F14.
+
+
 1.1.0 (2026-01-10)
 
  * Added selection functionality, and adjusted key bindings:

README.adoc

@@ -99,13 +99,13 @@ normal l enter
 
 Helper programs
 ~~~~~~~~~~~~~~~
-The F3, F13 and F4 keys are normally bound to actions 'view', 'view-raw',
-and 'edit', similarly to Norton Commander and other orthodox file managers.
-The helper programs used here may be changed by setting the PAGER and VISUAL
-(or EDITOR) environment variables.
+The F3, F13, F4, F14 keys are normally bound to actions 'view', 'view-raw',
+'edit', and 'edit-raw', similarly to Norton Commander and other orthodox
+file managers.  The helper programs used here may be changed by setting
+the PAGER and VISUAL (or EDITOR) environment variables.
 
-If 'view' finds Midnight Commander, it will make use of its configuration
-to apply any matching filter, such as to produce archive listings,
+If 'view' and 'edit' find Midnight Commander, they will make use of its
+configuration to apply any matching filter, such as to produce archive listings,
 or it will run the respective command.
 
 While it is mostly possible to get 'mcview' working using an invocation like

sdn-edit

@@ -0,0 +1,48 @@
+#!/bin/sh -e
+# sdn-edit: an editor for sdn that makes use of Midnight Commander configuration
+# to make more kinds of files directly editable
+
+if [ "$#" -ne 1 ]
+then
+	echo "Usage: $0 FILE" >&2
+	exit 2
+fi
+
+# This handles both MC_DATADIR and odd installation locations.
+datadir=
+if command -v mc >/dev/null
+then datadir=$(mc --datadir | sed 's/ (.*)$//')
+fi
+
+config=
+for dir in "$HOME"/.config/mc "$datadir" /etc/mc
+do
+	if [ -n "$dir" -a -f "$dir/mc.ext.ini" ]
+	then
+		config=$dir/mc.ext.ini
+		break
+	fi
+done
+
+# This is often used in %env{} expansion, so let's be on the same page.
+export PAGER=${PAGER:-less}
+
+export MC_EXT_FILENAME=$(realpath "$1")
+export MC_EXT_BASENAME=$(basename "$1")
+export MC_EXT_CURRENTDIR=$(dirname "$MC_EXT_FILENAME")
+output=$(sdn-mc-ext <"$config" "$(file -Lbz "$1")" \
+	"$MC_EXT_FILENAME" "$MC_EXT_BASENAME" "$MC_EXT_CURRENTDIR" Edit || :)
+kind=$(echo "$output" | sed -n 1p)
+command=$(echo "$output" | sed -n 2p)
+
+case "$kind" in
+'')
+	if [ -n "$command" ]
+	then eval "$command"
+	else "${VISUAL:-${EDITOR:-vi}}" -- "$MC_EXT_FILENAME"
+	fi
+	;;
+*)
+	echo "Unsupported: $kind" >&2
+	exit 1
+esac

sdn-edit.1

@@ -0,0 +1,24 @@
+.Dd January 27, 2026
+.Dt SDN-EDIT 1
+.Os
+.Sh NAME
+.Nm sdn-edit
+.Nd run Midnight Commander edit configuration externally
+.Sh SYNOPSIS
+.Nm sdn-edit
+.Ar path
+.Sh DESCRIPTION
+.Nm
+invokes
+.Ev VISUAL ,
+.Ev EDITOR
+or a fallback editor on the passed filename.
+.Pp
+If it succeeds in finding a
+.Xr mc 1
+.Pa mc.ext.ini
+file, it will first process it, and run the respective command.
+.Sh REPORTING BUGS
+Use
+.Lk https://git.janouch.name/p/sdn
+to report bugs, request features, or submit pull requests.

sdn.cpp

@@ -440,7 +440,7 @@ enum { ALT = 1 << 24, SYM = 1 << 25 };  // Outside the range of Unicode
 
 #define ACTIONS(XX) XX(NONE) XX(HELP) XX(QUIT) XX(QUIT_NO_CHDIR) \
 	XX(ENTER) XX(OPEN) XX(CHOOSE) XX(CHOOSE_FULL) \
-	XX(VIEW_RAW) XX(VIEW) XX(EDIT) XX(SORT_LEFT) XX(SORT_RIGHT) \
+	XX(VIEW_RAW) XX(VIEW) XX(EDIT) XX(EDIT_RAW) XX(SORT_LEFT) XX(SORT_RIGHT) \
 	XX(SELECT) XX(DESELECT) XX(SELECT_TOGGLE) XX(SELECT_ABORT) \
 	XX(UP) XX(DOWN) XX(TOP) XX(BOTTOM) XX(HIGH) XX(MIDDLE) XX(LOW) \
 	XX(PAGE_PREVIOUS) XX(PAGE_NEXT) XX(SCROLL_UP) XX(SCROLL_DOWN) XX(CENTER) \
@@ -466,7 +466,7 @@ static map<Key, action> g_normal_actions {
 	{'t', ACTION_CHOOSE}, {'T', ACTION_CHOOSE_FULL},
 	{KEY (F (1)), ACTION_HELP}, {'h', ACTION_HELP},
 	{KEY (F (3)), ACTION_VIEW}, {KEY (F (13)), ACTION_VIEW_RAW},
-	{KEY (F (4)), ACTION_EDIT},
+	{KEY (F (4)), ACTION_EDIT}, {KEY (F (14)), ACTION_EDIT_RAW},
 	{'q', ACTION_QUIT}, {ALT | 'q', ACTION_QUIT_NO_CHDIR},
 	// M-o ought to be the same shortcut the navigator is launched with
 	{ALT | 'o', ACTION_QUIT}, {'<', ACTION_SORT_LEFT}, {'>', ACTION_SORT_RIGHT},
@@ -1081,9 +1081,16 @@ fun sdn_view (const string &filename) {
 		(const char *) getenv ("PAGER"), "less", "cat"}, filename);
 }
 
-fun edit (const string &filename) {
-	run_program ({(const char *) getenv ("VISUAL"),
-		(const char *) getenv ("EDITOR"), "vi"}, filename);
+fun edit_raw (const string &filename) {
+	run_program ({
+		(const char *) getenv ("VISUAL"), (const char *) getenv ("EDITOR"),
+		"vi"}, filename);
+}
+
+fun sdn_edit (const string &filename) {
+	run_program ({(const char *) getenv ("SDN_EDITOR"), "sdn-edit",
+		(const char *) getenv ("VISUAL"), (const char *) getenv ("EDITOR"),
+		"vi"}, filename);
 }
 
 fun run_pager (FILE *contents) {
@@ -1550,7 +1557,10 @@ fun handle (Key k) -> bool {
 		(is_directory ? change_dir : sdn_view) (current.filename);
 		break;
 	case ACTION_EDIT:
-		edit (current.filename);
+		sdn_edit (current.filename);
+		break;
+	case ACTION_EDIT_RAW:
+		edit_raw (current.filename);
 		break;
 	case ACTION_HELP:
 		show_help ();