m2b

#!/bin/bash

# input is a commit message
# output is a git branch name

function trimillegalends {
    long=${1:0:100}
    while true; do
        good=true;
        if [[ "$long" == */ ]] ; then
            long=${long::-1}
            good=false
        fi
        if [[ "$long" == *.lock ]] ; then
            long=${long::-5}
            good=false
        fi
        if $good ; then
            break
        fi
    done
    echo $long
}

exec sed \
     -e 's|\.lock$|}L>|g' \
     -e 's/@{/}C>/g' \
     -e 's/^\./}0D>/g' \
     -e 's?//?}S>?g' \
     -e 's?/\.?}SD>?g' \
     -e 's?\*?}SS>?g' \
     -e 's/\^/=#=/g' \
     -e 's/?/}.>/g' \
     -e 's/~/}t>/g' \
     -e 's/\]/))))/g' \
     -e 's/\[/((((/g' \
     -e 's/:/----/g' \
     -e 's/ /_/g' \
     -e 's/\.\./}DD>/g' \
     -e 's/\\/}BSBS>/g' \
     -e "s/"'"'"/_''_/g" \
     -e "s/\.$/}dD>/g" \
     -e "s|/$|}sD>|g" \
    | (read long; trimillegalends $long )