From bc79a9f65ba9f9fdb308b4a8eb75d0ca4e692463 Mon Sep 17 00:00:00 2001
From: Michael Hunteman <michael@huntm.net>
Date: Thu, 31 Aug 2023 18:56:05 -0500
Subject: Add aerc filters

---
 .config/aerc/filters/hldiff | 46 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100755 .config/aerc/filters/hldiff

(limited to '.config/aerc/filters/hldiff')

diff --git a/.config/aerc/filters/hldiff b/.config/aerc/filters/hldiff
new file mode 100755
index 0000000..dc8c727
--- /dev/null
+++ b/.config/aerc/filters/hldiff
@@ -0,0 +1,46 @@
+#!/usr/bin/awk -f
+
+BEGIN {
+	bright = "\x1B[1m"
+	red = "\x1B[31m"
+	green = "\x1B[32m"
+	cyan = "\x1B[36m"
+	reset = "\x1B[0m"
+
+	hit_diff = 0
+}
+{
+	if (hit_diff == 0) {
+		# Strip carriage returns from line
+		gsub(/\r/, "", $0)
+
+		if ($0 ~ /^diff /) {
+			hit_diff = 1;
+			print bright $0 reset
+		} else if ($0 ~ /^.*\|.*(\+|-)/) {
+			left = substr($0, 0, index($0, "|")-1)
+			right = substr($0, index($0, "|"))
+			gsub(/-+/, red "&" reset, right)
+			gsub(/\++/, green "&" reset, right)
+			print left right
+		} else {
+			print $0
+		}
+	} else {
+		# Strip carriage returns from line
+		gsub(/\r/, "", $0)
+
+		if ($0 ~ /^-/) {
+			print red $0 reset
+		} else if ($0 ~ /^\+/) {
+			print green $0 reset
+		} else if ($0 ~ /^ /) {
+			print $0
+		} else if ($0 ~ /^@@ (-[0-9]+,[0-9]+ \+[0-9]+,[0-9]+) @@.*/) {
+			sub(/^@@ (-[0-9]+,[0-9]+ \+[0-9]+,[0-9]+) @@/, cyan "&" reset)
+			print $0
+		} else {
+			print bright $0 reset
+		}
+	}
+}
-- 
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