projects / thirdparty / bash.git / blame
| Commit | Line | Data |
|---|---|---|
| 8868edaf CR |
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 | # | |
| a0c0a00f CR |
14 | # new framework for parameter transformations, post bash-4.3 |
| 15 | ||
| 16 | printf "<%s>" "${x@Q}" ; echo | |
| 17 | printf "<%s>" "${x@E}" ; echo | |
| 18 | printf "<%s>" "${x@P}" ; echo | |
| 19 | printf "<%s>" "${x@A}" ; echo | |
| 20 | ||
| 21 | x="ab 'cd' ef" | |
| 22 | printf "<%s> " "${x@Q}" ; echo | |
| 23 | ||
| 24 | printf "<%s>" "${x@C}" | |
| 25 | ||
| 26 | # if unquoted, normal word splitting happens | |
| 27 | set -- ab 'cd ef' '' gh | |
| 28 | printf "<%s> " "${@@Q}" ; echo | |
| 29 | printf "<%s> " "${*@Q}" ; echo | |
| 30 | printf "<%s> " ${@@Q} ; echo | |
| 31 | printf "<%s> " ${*@Q} ; echo | |
| 32 | ||
| 33 | y[0]=4 | |
| 34 | y[1]='ab cd' | |
| 35 | ||
| 36 | printf "<%s> " "${y[1]@Q}" ; echo | |
| 37 | printf "<%s> " "${y[@]@Q}" ; echo # mksh doesn't like @ or * or arrays subscripted with them | |
| 38 | ||
| 39 | printf "<%s> " "${z@Q}" ; echo # empty string? | |
| 40 | ||
| 41 | recho ${z@Q} # this disappears | |
| 42 | ||
| 43 | # | |
| 44 | HOST=host | |
| 45 | SHELL_LEVEL=2 | |
| 46 | NPS1='\[\]${HOST}($SHELL_LEVEL)[\v]\$ ' | |
| 47 | ||
| 48 | recho "${NPS1@P}" | |
| 49 | ||
| 50 | # | |
| 51 | D=' \t\n' | |
| 52 | printf "<%s>" "${D@E}" ; echo | |
| 53 | printf "<%s>" "${D@Q}" ; echo | |
| 54 | ||
| 55 | E=$' \t\n' | |
| 56 | printf "<%s>" "${E@E}" ; echo | |
| 57 | printf "<%s>" "${E@Q}" ; echo | |
| 58 | ||
| 59 | declare x | |
| 60 | declare -r x="ab 'cd' ef" | |
| 61 | printf "%s" "${x@A}" ; echo | |
| 62 | ||
| 63 | set -- ab 'cd ef' '' gh | |
| 64 | printf "%s " "${@@A}" ; echo | |
| 65 | ||
| 66 | A=( "$@" ) | |
| 67 | printf "%s " "${A[@]@A}" ; echo | |
| 68 | B=() | |
| 69 | printf "%s " "${B[@]@A}" ; echo | |
| 70 | ||
| 71 | unset A | |
| 72 | declare -A A | |
| 73 | A=( [one]=1 [two]='b c' [three]='' [four]=de ) | |
| 74 | printf "%s " "${A[@]@A}" ; echo | |
| 75 | ||
| 76 | unset X | |
| 77 | declare X | |
| 78 | declare -r X="ab 'cd' ef" | |
| 79 | printf "%s" "${X@a}" ; echo | |
| 80 | ||
| 81 | set -- 1 2 3 4 | |
| 82 | ||
| 83 | unset A | |
| 84 | A=( "$@" ) | |
| 85 | printf "%s " "${A@a}" ; echo | |
| 86 | ||
| 87 | unset A | |
| 88 | declare -A A | |
| 89 | A=( [one]=1 [two]='b c' [three]='' [four]=de ) | |
| 90 | printf "%s " "${A@a}" ; echo | |
| 91 | ||
| 92 | declare -ir Y=0 | |
| 93 | printf "%s" "${Y@a}" ; echo | |
| 94 | ||
| 95 | # make sure we still handle ${#@} and ${@} as posix requires | |
| 96 | set -- a b c d e | |
| 97 | echo ${@} | |
| 98 | echo ${#@} | |
| 99 | echo a${#@}b | |
| d233b485 CR |
100 | |
| 101 | # new feature in bash-5.0: display attributes of even unset variables | |
| 102 | unset -v foo | |
| 103 | ||
| 104 | declare -i foo | |
| 105 | echo ${foo@a} | |
| 106 | ||
| 107 | declare -p foo | |
| 108 | ||
| 109 | unset foo | |
| 110 | declare -A foo | |
| 111 | echo ${foo@a} | |
| 112 | ||
| 113 | declare -p foo |