fix: use a more generic way to print NUL with awk

Only gawk undestands the \0 syntax
feat(mimelist): use `mimetype` for better type detection
docs(mimelist): add author & dependencies

nnn.1

@@ -353,7 +353,7 @@ Handy bash/zsh shell function to list files by mime-type in current directory:
 
     list ()
     {
-        find . -maxdepth 1 | file -if- | grep "$1" | awk -F: '{printf "%s\0", $1}' | nnn
+        find . -maxdepth 1 | file -if- | grep "$1" | awk -F: '{printf "%s%c", $1, 0}' | nnn
     }
 .Ed
 .Pp

plugins/README.md

@@ -41,7 +41,7 @@ Plugins extend the capabilities of `nnn`. They are _executable_ scripts (or bina
 | [ipinfo](ipinfo) | Fetch external IP address and whois information | sh | curl, whois |
 | [kdeconnect](kdeconnect) | Send selected files to an Android device [✓] | sh | kdeconnect-cli |
 | [launch](launch) | GUI application launcher | sh | fzf |
-| [mimelist](mimelist) | List files by mime in subtree | sh | - |
+| [mimelist](mimelist) | List files by mime in subtree | sh | file/mimetype |
 | [moclyrics](moclyrics) | Show lyrics of the track playing in moc | sh | [ddgr](https://github.com/jarun/ddgr), [moc](http://moc.daper.net/) |
 | [mocq](mocq) | Queue/play selection/dir/file in moc [✓] | sh | [moc](http://moc.daper.net/) |
 | [mp3conv](mp3conv) | Extract audio from multimedia as mp3 | sh | ffmpeg |

plugins/mimelist

@@ -2,8 +2,12 @@
 
 # Description: Find and list files by mime type in smart context
 #
+# Dependencies:
+#   - file
+#   - mimetype (optional, PERL File MimeInfo)
+#
 # Shell: POSIX compliant
-# Author: Arun Prakash Jana
+# Author: Arun Prakash Jana, Michel DHOOGE
 
 # shellcheck disable=SC1090,SC1091
 . "$(dirname "$0")"/.nnn-plugin-helper
@@ -12,4 +16,8 @@ printf "mime (e.g., video/audio/image): "
 read -r mime
 
 printf "%s" "+l" > "$NNN_PIPE"
-find . | file -if- | grep "$mime" | awk -F: '{printf "%s\0", $1}' > "$NNN_PIPE"
+if type mimetype >/dev/null 2>&1; then
+    find . | mimetype -f - | grep "$mime" | awk -F: '{printf "%s%c", $1, 0}' > "$NNN_PIPE"
+else
+    find . | file -if- | grep "$mime" | awk -F: '{printf "%s%c", $1, 0}' > "$NNN_PIPE"
+fi