aerc/filters/hldiff
Daniel Xu ea4fe71360 Strip carriage returns (^M) when filtering emails
Presumably some email servers will transform newlines into carriage
return new lines to better support windows users. I can't prove this but
that's the best explanation I have for my hosted email provider
(fastmail).

Without this patch, I was seeing annoying `^M`s at the end of every
filtered line.

Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
2019-08-20 16:05:20 +09:00

45 lines
915 B
Awk
Executable file

# vim: set ft=awk :
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
}
}
}