incdec: Increment the number on the current line

Got it working! Thanks to the Fzf Bash code for showing me that you can
assign to `READLINE_LINE` and `READLINE_POINT`:

https://github.com/junegunn/fzf/blob/7191ebb615f5d6ebbf51d598d8ec853a65e2274d/shell/key-bindings.bash

1 files changed, 8 insertions, 4 deletions

diff --git a/incdec b/incdec
index 854717d..3320bad 100644
--- a/incdec
+++ b/incdec
@@ -8,9 +8,9 @@ function incdec {
 	local number=
 
 	# If the line part doesn't contain a number, exit.
-	if ! [[ "$line_part" =~ [^0-9]*([0-9]+)[^0-9]* ]]; then
-		return $EX_DATAERR
-	fi
+	# if ! [[ "$line_part" =~ [^0-9]*([0-9]+)[^0-9]* ]]; then
+	# 	return $EX_DATAERR
+	# fi
 
 	number=${BASH_REMATCH[1]}
 
@@ -20,7 +20,9 @@ function incdec {
 
 	incremented_line="$(echo "$line_part" | perl -pe 's/(\d+)/$1+1/e')"
 
-	printf "${READLINE_LINE:0:$READLINE_POINT}$incremented_line"
+	# echo "${READLINE_LINE:0:$READLINE_POINT}$incremented_line"
+	READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT}$incremented_line"
+	# echo 'this is a test'
 }
 
 function __readline_incdec_incdec2 {
@@ -33,6 +35,8 @@ function __readline_incdec_incdec2 {
 # }
 
 bind -x '"\C-xa+":incdec'
+# bind '"\C-xa+": "\C-e$(incdec)\e\C-e"'
+# bind '"\C-xa+": "\C-e`incdec`"'
 # bind '"\C-xaa":\C-xa+'
 
 function __readline_incdec_save_readline_point {