filters: restore plaintext awk script

This script is referenced by some users configuration. Restore it to
avoid breaking existing setups.

Fixes: bca93cd91536 ("filters: add a more complete plaintext filter")
Signed-off-by: Robin Jarry <robin@jarry.cc>

1 files changed, 16 insertions, 0 deletions

diff --git a/filters/plaintext b/filters/plaintext
new file mode 100755
index 0000000..cfaa170
--- /dev/null
+++ b/filters/plaintext
@@ -0,0 +1,16 @@
+# 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
+	}
+}