From aaa3c23a80b01e443c7715c87ef13bda7784e3b1 Mon Sep 17 00:00:00 2001
From: Case Duckworth
Date: Sun, 5 Mar 2023 23:25:37 -0600
Subject: Add functions

---
 twerk | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/twerk b/twerk
index 8fe163e..68f59d0 100755
--- a/twerk
+++ b/twerk
@@ -94,6 +94,10 @@ main() {
 	read_posts "$TWERK_FILE"
 }
 
+remain() {
+	_TWERK_INITIAL=false main "$TWERK_FEEDS"
+}
+
 ### Library
 
 fetch_posts() {
@@ -155,6 +159,11 @@ sort_posts() {
 	sort -r
 }
 
+struncate() {
+	printf '%s\n' "$1" |
+		dd ibs=1 count="$2" 2>/dev/null
+}
+
 format_posts() {
 	while IFS='	' read -r date name url post
 	do
@@ -167,8 +176,8 @@ format_posts() {
 		fi
 
 		printf "%${TWERK_DATE_WIDTH}s | %${TWERK_USER_WIDTH}s | " \
-		       "$(echo "$date" | head -c$TWERK_DATE_WIDTH)" \
-		       "$(echo "$name" | head -c$TWERK_USER_WIDTH)"
+		       "$(struncate "$date" "$TWERK_DATE_WIDTH")" \
+		       "$(struncate "$name" "$TWERK_USER_WIDTH")"
 
 		export url name date post TWERK_WIDTH TWERK_HANG
 		export linewidth="$TWERK_HANG"
@@ -244,11 +253,18 @@ post() {
 	printf 'Twt: ' >&2
 	read -r post
 
+
+	if printf '%s\n' "$post" | grep -qE '^[ \t\n]$'
+	then
+		remain
+	fi
+
 	post="$(printf '%s\t%s\n' "$(date +'%FT%T%z')" "$post")"
 
 	eval "printf '%s\n' \"\$post\" | $TWERK_POST_COMMAND"
-	_TWERK_INITIAL=false main "$TWERK_FEEDS"
 	rm "$TWERK_CACHE/$TWERK_USER"
+	remain
+}
 }
 
 refresh() {
-- 
cgit 1.4.1-21-gabe81