cpt: print docstrings using awk instead of sed

Using awk, we can achieve the following things:
- Ignore the rest of the file (2 times faster than sed)
- If the line doesn't match the docstring pattern, we can just print a
  newline instead.

I am not exactly really familiar with awk scripting so there might be a
better way of doing this. In that case please send a patch and I will
apply it.

FossilOrigin-Name: bf65db74ad6552bb374f3535ef2a5333bbc0dc3d20563ec37e821036e07f621f

1 files changed, 2 insertions, 1 deletions

diff --git a/src/cpt b/src/cpt
index c72d39d..ee4a328 100755
--- a/src/cpt
+++ b/src/cpt
@@ -17,7 +17,8 @@ case "$arg" in
 
         for path; do
             printf "%b->%b %-${max}s  " "$colorb" "$colre" "${path#*/cpt-}"
-            sed -n 's/^# *//;2p' "$(command -v "cpt-$path")"
+            awk 'NR==2{if(/^# /){sub(/^# */,"");print}else print "";exit}' \
+                "$(command -v "cpt-$path")"
         done | sort -uk1 >&2
         exit
         ;;