1. #!/bin/bash
2.  
3. # Changes herbstluftwm tags
4.  
5. checkuse() {
6.         echo "Checking $i / tags: ${tags[@]} / tags[i]: ${tags[$1]}"
7.         if [[ "${tags[$1]}" != [.!]* ]]; then # tag is not unused
8.                 echo "Using $1 / ${tags[$1]}"
9.                 herbstclient use "${tags[$1]:1}" # cutting off first char (.#:!)
10.                 exit 0
11.         fi
12. }
13.  
14.  
15. tags=( $(herbstclient tag_status) )
16.  
17. # Find the currently active tag
18. for ((i=0; i<="${#tags[@]}"; i++)); do
19.         [[ "${tags[i]}" == "#"* ]] && activetag="$i"
20. done
21.  
22. if [[ "$1" == +* || "$1" == -* ]]; then # +/- n
23.         new_i=$(( (activetag $1) % ${#tags[@]} )) # + or - is already in $1
24.         herbstclient use "${tags[$new_i]:1}" # cutting off first char (.#:!)
25.         exit 0
26. elif [[ "$1" == next ]]; then # next active tag
27.         for ((i="$((activetag+1))"; i<"${#tags[@]}"; i++)); do
28.                 checkuse "$i"
29.         done
30.         # at the end of the taglist, wrap around
31.         for ((i=0; i<"$activetag"; i++)); do
32.                 checkuse "$i"
33.         done
34. elif [[ "$1" == prev ]]; then # previous active tag
35.         for ((i="$((activetag-1))"; i>=0; i--)) do
36.                 checkuse "$i"
37.         done
38.         # at the beginning of the taglist, wrap around
39.         for ((i=${#tags[@]}-1; i>$((activetag-1)); i--)) do
40.                 checkuse "$i"
41.         done
42. else
43.         echo "Usage: $0 [+<n>|-<n>|next|prev]"
44.         exit 1
45. fi
46.