Add functions

1 files changed, 19 insertions, 3 deletions

@@ -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() {