1# This program is free software: you can redistribute it and/or modify 2# it under the terms of the GNU General Public License as published by 3# the Free Software Foundation, either version 3 of the License, or 4# (at your option) any later version. 5# 6# This program is distributed in the hope that it will be useful, 7# but WITHOUT ANY WARRANTY; without even the implied warranty of 8# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9# GNU General Public License for more details. 10# 11# You should have received a copy of the GNU General Public License 12# along with this program. If not, see <http://www.gnu.org/licenses/>. 13# 14# new framework for parameter transformations, post bash-4.3 15 16printf "<%s>" "${x@Q}" ; echo 17printf "<%s>" "${x@E}" ; echo 18printf "<%s>" "${x@P}" ; echo 19printf "<%s>" "${x@A}" ; echo 20 21x="ab 'cd' ef" 22printf "<%s> " "${x@Q}" ; echo 23 24printf "<%s>" "${x@C}" 25 26# if unquoted, normal word splitting happens 27set -- ab 'cd ef' '' gh 28printf "<%s> " "${@@Q}" ; echo 29printf "<%s> " "${*@Q}" ; echo 30printf "<%s> " ${@@Q} ; echo 31printf "<%s> " ${*@Q} ; echo 32 33y[0]=4 34y[1]='ab cd' 35 36printf "<%s> " "${y[1]@Q}" ; echo 37printf "<%s> " "${y[@]@Q}" ; echo # mksh doesn't like @ or * or arrays subscripted with them 38 39printf "<%s> " "${z@Q}" ; echo # empty string? 40 41recho ${z@Q} # this disappears 42 43# 44HOST=host 45SHELL_LEVEL=2 46NPS1='\[\]${HOST}($SHELL_LEVEL)[\v]\$ ' 47 48recho "${NPS1@P}" 49 50# 51D=' \t\n' 52printf "<%s>" "${D@E}" ; echo 53printf "<%s>" "${D@Q}" ; echo 54 55E=$' \t\n' 56printf "<%s>" "${E@E}" ; echo 57printf "<%s>" "${E@Q}" ; echo 58 59declare x 60declare -r x="ab 'cd' ef" 61printf "%s" "${x@A}" ; echo 62 63set -- ab 'cd ef' '' gh 64printf "%s " "${@@A}" ; echo 65 66A=( "$@" ) 67printf "%s " "${A[@]@A}" ; echo 68B=() 69printf "%s " "${B[@]@A}" ; echo 70 71unset A 72declare -A A 73A=( [one]=1 [two]='b c' [three]='' [four]=de ) 74printf "%s " "${A[@]@A}" ; echo 75 76unset X 77declare X 78declare -r X="ab 'cd' ef" 79printf "%s" "${X@a}" ; echo 80 81set -- 1 2 3 4 82 83unset A 84A=( "$@" ) 85printf "%s " "${A@a}" ; echo 86 87unset A 88declare -A A 89A=( [one]=1 [two]='b c' [three]='' [four]=de ) 90printf "%s " "${A@a}" ; echo 91 92declare -ir Y=0 93printf "%s" "${Y@a}" ; echo 94 95# make sure we still handle ${#@} and ${@} as posix requires 96set -- a b c d e 97echo ${@} 98echo ${#@} 99echo a${#@}b 100 101# new feature in bash-5.0: display attributes of even unset variables 102unset -v foo 103 104declare -i foo 105echo ${foo@a} 106 107declare -p foo 108 109unset foo 110declare -A foo 111echo ${foo@a} 112 113declare -p foo 114