Support jump to initial directory

This change remaps the & key. However, / is more relevant for filter and & makes more sense wrt. address.

README.md

@@ -139,9 +139,10 @@ nnn needs libreadline, libncursesw (on Linux or ncurses on OS X) and standard li
 | `Right`, `Enter`, `l`, `^M` | Open file or enter dir |
 | `Left`, `Backspace`, `h`, `^H` | Go to parent dir |
 | `~` | Jump to HOME dir |
+| `&` | Jump to initial dir |
 | `-` | Jump to last visited dir |
 | `o` | Open dir in `NNN_DE_FILE_MANAGER` |
-| `/`, `&` | Filter dir contents |
+| `/` | Filter dir contents |
 | `c` | Show change dir prompt |
 | `d` | Toggle detail view |
 | `D` | Toggle current file details screen |

config.def.h

@@ -35,7 +35,6 @@ static struct key bindings[] = {
 	{ 'l',            SEL_GOIN,      "",     "" },
 	/* Filter */
 	{ '/',            SEL_FLTR,      "",     "" },
-	{ '&',            SEL_FLTR,      "",     "" },
 	/* Next */
 	{ 'j',            SEL_NEXT,      "",     "" },
 	{ KEY_DOWN,       SEL_NEXT,      "",     "" },
@@ -50,12 +49,12 @@ static struct key bindings[] = {
 	/* Page up */
 	{ KEY_PPAGE,      SEL_PGUP,      "",     "" },
 	{ CONTROL('U'),   SEL_PGUP,      "",     "" },
-	/* Home */
+	/* First entry */
 	{ KEY_HOME,       SEL_HOME,      "",     "" },
 	{ 'g',            SEL_HOME,      "",     "" },
 	{ CONTROL('A'),   SEL_HOME,      "",     "" },
 	{ '^',            SEL_HOME,      "",     "" },
-	/* End */
+	/* Last entry */
 	{ KEY_END,        SEL_END,       "",     "" },
 	{ 'G',            SEL_END,       "",     "" },
 	{ CONTROL('E'),   SEL_END,       "",     "" },
@@ -64,6 +63,8 @@ static struct key bindings[] = {
 	{ 'c',            SEL_CD,        "",     "" },
 	/* HOME */
 	{ '~',            SEL_CDHOME,    "",     "" },
+	/* Initial directory */
+	{ '&',            SEL_CDBEGIN,   "",     "" },
 	/* Last visited dir */
 	{ '-',            SEL_LAST,      "",     "" },
 	/* Toggle hide .dot files */

nlay

@@ -14,7 +14,8 @@
 #
 #    The bg setting depends on personal preference and type of app, e.g.,
 #    I would start vim (CLI) in the foreground but Sublime Text (GUI) in the
-#    background.
+#    background. I also prefer mpv running in the background without disturbing
+#    my ongoing activity in nnn by blocking navigation.
 #
 #    Check (and TOGGLE as you wish) the default bg settings.
 #

nnn.1

@@ -43,11 +43,13 @@ Open file or enter directory
 Back up one directory level
 .It Ic ~
 Change to the HOME directory
+.It Ic &
+Change to initial directory
 .It Ic -
 Change to the last visited directory
 .It Ic o
 Open directory in NNN_DE_FILE_MANAGER
-.It Ic /, &
+.It Ic /
 Change filter (more information below)
 .It Ic c
 Change into the given directory

nnn.c

@@ -86,6 +86,7 @@ enum action {
 	SEL_END,
 	SEL_CD,
 	SEL_CDHOME,
+	SEL_CDBEGIN,
 	SEL_LAST,
 	SEL_TOGGLEDOT,
 	SEL_DETAIL,
@@ -946,9 +947,10 @@ show_help(void)
     [Right], [Enter], l, ^M     Open file or enter dir\n\
     [Left], [Backspace], h, ^H  Go to parent dir\n\
     ~                           Jump to HOME dir\n\
+    &                           Jump to initial dir\n\
     -                           Jump to last visited dir\n\
     o                           Open dir in NNN_DE_FILE_MANAGER\n\
-    /, &                        Filter dir contents\n\
+    /                           Filter dir contents\n\
     c                           Show change dir prompt\n\
     d                           Toggle detail view\n\
     D                           Toggle current file details screen\n\
@@ -1554,6 +1556,20 @@ nochange:
 			xstrlcpy(fltr, ifilter, sizeof(fltr));
 			DPRINTF_S(path);
 			goto begin;
+		case SEL_CDBEGIN:
+			if (canopendir(ipath) == 0) {
+				printwarn();
+				goto nochange;
+			}
+
+			/* Save last working directory */
+			xstrlcpy(lastdir, path, sizeof(lastdir));
+
+			xstrlcpy(path, ipath, sizeof(path));
+			/* Reset filter */
+			xstrlcpy(fltr, ifilter, sizeof(fltr));
+			DPRINTF_S(path);
+			goto begin;
 		case SEL_LAST:
 			xstrlcpy(newpath, lastdir, sizeof(newpath));
 			xstrlcpy(lastdir, path, sizeof(lastdir));