From 10ea76be79908484f2b93368c3a908bc6df9709d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Paul=20H=C3=A4nsch?= <paul@plutz.net>
Date: Thu, 30 Jan 2020 00:36:03 +0100
Subject: [PATCH] massively improved grouping

---
 list.sh | 32 +++++++++-----------------------
 1 file changed, 9 insertions(+), 23 deletions(-)

diff --git a/list.sh b/list.sh
index a4bdbc7..8e46ab3 100644
--- a/list.sh
+++ b/list.sh
@@ -87,38 +87,23 @@ list_filter(){
   fi
 }
 
-groupmatch(){
-  a="${1%$CR}" b="${2%$CR}"
-#  if [ ${#a} -gt ${#b} ]; then
-#    long="$a" short="$b"
-#  else
-#    long="$b" short="$a"
-#  fi
-  # com="$(expr substr "$long" 1 $((${#long} * 3 / 4)))"
-  # com="$(expr substr "$long" 1 $((${#long} - 3)))"
-  ## Cut off youtube- and other site suffixes. Cut of last three characters
-  com="$(printf %s "$a" |sed -E 's;-([0-9a-zA-Z_-]{11}|ph[0-9a-f]{13}|[0-9]{8})$;;; s;...$;;;')"
-  cut="${b#$com}"
-  if [ "${cut}" != "${b}" ]; then
-    return 0
-  else
-    return 1
-  fi
-}
-
 list_order(){
   local fm fn fn al length ln h w t c name buffer l
 
   if [ $ORDER = Name ]; then
     sort -k6 |sed 's;^;metashort\t;;'
   elif [ $ORDER = Group ]; then
-    { sort -k6; echo '0 0 0 tags= comment= _'; } \
+    sed -E '
+      :X
+      s;^([^\t]+\t[^\t]+\t[^\t]+\t[^\t]+\t[^\t]+\t[^ 0-9]*)(-[0-9a-zA-Z_-]{11}\r|-ph[0-9a-f]{13}\r|-[0-9]{8}\r|[0-9]+\+?)(.*)$;\1\r\3 \2;;
+      tX;' \
+    | { sort -n -k7 |sort -s -k6,6; echo '0 0 0 tags= comment= _'; } \
     | while read -r length h w t c name; do
-      if groupmatch "$ln" "$name"; then
+      if [ "${ln%% *}" = "${name%% *}" ]; then
         al=$((al + length))
         buffer="${buffer}${BR}$length	$h	$w	$t	$c	$name"
       else
-	printf %s\\n "$buffer" |while read -r l; do
+	printf '%s\n' "$buffer" |while read -r l; do
           [ "$l" ] && printf '%s	%s\n' "$al" "$l"
         done
         al="$length"
@@ -126,7 +111,8 @@ list_order(){
       fi
       ln="$name"
     done \
-    | sort -sn -k1 |sed -r 's;^[0-9]+\t;metashort\t;;'
+    | sort -s -n -k1 |sed -r 's;^[0-9]+\t;metashort\t;;' \
+    | sed -E ':X s;^([^\t]+\t[^\t]+\t[^\t]+\t[^\t]+\t[^\t]+\t[^\r]*)\r([^ ]*) ([^ ]+)( .*)?$;\1\3\2\4;; tX'
   elif [ $ORDER = Length ]; then
     sort -sn -k1 |sed 's;^;metashort\t;;'
   elif [ $ORDER = Date ]; then
-- 
2.39.2