for V in \
    4 \
    4.10 \
    4.10.1 \
    burger \
    pulls/4/abc \
    pulls/4.10/abc \
    pulls/4.10.1/abc \
    pulls/burger/abc \
;do
    BRANCH_OR_TAG=$V
    if [[ $BRANCH_OR_TAG =~ ^([1-9]+)$ ]] || \
        [[ $BRANCH_OR_TAG =~ ^([0-9]+\.[0-9]+)$ ]] || \
        [[ $BRANCH_OR_TAG =~ ^pulls/([1-9]+)/.+$ ]] || \
        [[ $BRANCH_OR_TAG =~ ^pulls/([0-9]+\.[0-9]+)/.+$ ]]; \
    then
        COMPOSER_ROOT_VERSION="${BASH_REMATCH[1]}.x-dev"
    elif [[ $BRANCH_OR_TAG =~ ^[0-9]\.[0-9]+\.[0-9]+ ]]; then
        COMPOSER_ROOT_VERSION="${BRANCH_OR_TAG}"
    else
        COMPOSER_ROOT_VERSION="dev-${BRANCH_OR_TAG}"
    fi
    echo $COMPOSER_ROOT_VERSION
done