feat(imp2ics): add RFC 5545 DTEND, line folding, CSV export and deduplication

gensign

@@ -1,7 +1,6 @@
 #!/bin/bash
 #echo "Kryštof Pešek" > /home/kof/.signature 
 #echo "https://k0f.github.io" >> /home/kof/.signature
-#echo "https://k0f.github.io" >> /home/kof/.signature
 #echo "-----------------------------------------" >> /home/kof/.signature
 #echo Moon phase  : `/home/kof/bin/moonphase` >> /home/kof/.signature
 #echo Metric time: `/home/kof/bin/metriclock` >> /home/kof/.signature
@@ -10,7 +9,7 @@
 while true; do
   {
     echo "Kryštof Pešek"
-    echo "https://k0f.github.io"
+    #echo "https://k0f.github.io"
     echo "-----------------------------------------"
     echo "Moon phase  : $(/home/kof/bin/moonphase)"
     #echo "Metric time : $(/home/kof/bin/metriclock)"

now

@@ -1,10 +1,15 @@
 #!/bin/bash
 
-# Check if the first argument starts with [ and ends with ]
-if [[ "$1" =~ ^\[.*\]$ ]]; then
-    CATEGORY="${1^^}" # Uppercase the tag
-    shift             # Remove the category from the argument list
-    ARGS="$*"         # The rest of the message
+# Check if category tag is provided, e.g. [TAG] or "[TAG] message"
+if [[ "$1" =~ ^\[([^]]+)\][[:space:]]*(.*)$ ]]; then
+    CATEGORY="${BASH_REMATCH[1]^^}"
+    REST="${BASH_REMATCH[2]}"
+    shift
+    if [ -n "$REST" ]; then
+        ARGS="$REST${*:+ }$*"
+    else
+        ARGS="$*"
+    fi
 else
     CATEGORY="GENERAL"
     ARGS="$*"