mirror of
https://https.git.savannah.gnu.org/git/bash.git
synced 2026-06-21 12:57:58 +02:00
Chet Ramey
93 lines
1.9 KiB
Plaintext
93 lines
1.9 KiB
Plaintext
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Change bash to expand the next word following aliases ending with a space
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# that are more than one level deep. Change how bash handles the expand-next-word
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# flag when recognizing a reserved word.
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#
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# Bash never did this before post-bash-5.2
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: ${THIS_SH:=./bash}
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shopt -s expand_aliases 2>/dev/null
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alias a1='echo '
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alias a2=a1
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alias foo=bar
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alias x=xtra
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a2 foo
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unalias foo
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alias e='echo '
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alias f='foo '
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alias b=bar
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e f b x
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alias e=echo
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a2 foo;e x
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unalias e f b
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alias e=echo
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alias foo='bar '
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alias c=';'
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a2 foo c e x
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unalias foo e c
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alias file='/dev/null ;'
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alias e=echo
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alias foo='bar '
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alias c='< '
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alias x=xtra
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a2 foo c file e x
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unalias a1 a2 e foo c x file
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alias foo=bar
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alias al=' '
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alias foo=bar
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al for foo in v
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do echo foo=$foo bar=$bar
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done
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al case foo in foo) echo foo;; bar) echo bar;; esac
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# one difference between bash in default and posix modes is that default mode
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# bash allows reserved words to be aliased, which posix says is a no-no
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${THIS_SH} -c '
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shopt -s expand_aliases 2>/dev/null
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alias al=" "
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alias foo=bar
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alias for=echo
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al for foo in v
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do echo foo=$foo bar=$bar
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done' bash
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${THIS_SH} -o posix -c '
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alias al=" "
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alias foo=bar
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alias for=echo
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al for foo in v
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do echo foo=$foo bar=$bar
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done' bash
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