config: set a default filter for text/plain

Avoid the following issue when running aerc with the default
configuration:

  No filter configured for this mimetype ('text/plain')

Use a very basic sed command to replace the default plaintext filter.

Fixes: bb0f1801402e ("config: do not hardcode sharedir")
Signed-off-by: Robin Jarry <robin@jarry.cc>

2 files changed, 1 insertions, 16 deletions

diff --git a/config/aerc.conf b/config/aerc.conf
index 2c928f69..66b08ad9 100644
--- a/config/aerc.conf
+++ b/config/aerc.conf
@@ -222,6 +222,7 @@ reply-to-self=true
 # against (non-case-sensitive) and a comma, e.g. subject,text will match a
 # subject which contains "text". Use header,~regex to match against a regex.
 #subject,~^\[PATCH=colordiff
+text/plain=sed 's/^>\+.*/\x1b[2;36m&\x1b[0m/'
 #text/html=pandoc -f html -t plain
 #image/*=catimg -w $(tput cols) -
 
diff --git a/filters/plaintext b/filters/plaintext
deleted file mode 100755
index cfaa170e..00000000
--- a/filters/plaintext
+++ /dev/null
@@ -1,16 +0,0 @@
-# vim: set ft=awk :
-BEGIN {
-	dim = "\x1B[2m"
-	cyan = "\x1B[36m"
-	reset = "\x1B[0m"
-}
-{
-	# Strip carriage returns from line
-	gsub(/\r/, "", $0)
-
-	if ($0 ~ /^On .*, .* wrote:/ || $0 ~ /^>+/) {
-		print dim cyan $0 reset
-	} else {
-		print $0
-	}
-}