Package: posh
Version: 0.6.7
Severity: normal
$ local() { echo a; }
$ local a
$ "local" a
$
"local" is not a POSIX command, but I suspect it might be a
"debian policy" extension to POSIX which may explain why posh
has it.
Anyway, the above breaks POSIX conformance I think. POSIX only
allows "select" and "function" as possible non-standard
keywords.
If "local" were a keyword in posh, I would expect the first line
above to give an error and the 3rd line to output "a\n".
Note that the behavior of "local" differs in *every* shell that
has such a builtin.
Note that given that "local" is not POSIX and can be written as
a POSIX shell function with little effort if need be, it
shouldn't be needed as a builtin, IMO.
See for instance:
# this is like the "local" in pdksh, posh or ash, and unlike in
# bash or zsh (that initialise the variable to an empty string)
# or ksh93 or bash (that don't parse it as a builtin).
#
# variables starting with _l are reserved.
# functions to be declared as:
# declare funcname; f_funcname() { ... ; }
local() {
for _lvar do
if eval "[ -z \"\${_l${_l}${_lvar%%=*}++}\" ]"; then
eval "_l$_l=\"\${_l$_l} \${_lvar%%=*}\""
eval "_l$_l${_lvar%%=*}=\${${_lvar%%=*}++\$${_lvar%%=*}}"
fi
case $_lvar in
(*=*) eval "${_lvar%%=*}=\${_lvar#*=}"
esac
done
}
call() {
_l=$((${_l:-0} + 1))
unset "_l$_l"
_lfname=${1#f_}
_lfstack=$_lfstack+$_lfname
"$@"
_lfstack=${_lfstack%+*}
_lfname=${_lfstack##*+}
local IFS=" "
eval "_lvar=\${_l$_l}"
for _lvar in $_lvar; do
eval "$_lvar=\${_l$_l$_lvar}"
if eval "[ -z \"\${$_lvar}\" ]"; then
unset "$_lvar"
else
eval "$_lvar=\${$_lvar#+}"
fi
unset "_l$_l$_lvar"
done
unset "_l$_l"
_l=$(($_l - 1))
}
declare() { eval "$1() { call f_$1 \"[EMAIL PROTECTED]"; }"; }
# usage example:
declare f; f_f() {
local i
i=$(($i + 1))
echo $_lfstack $i
[ "$i" -ge 10 ] || f
echo $_lfstack $i
}
f
# Or:
IFS=+
call eval '
local IFS=:
set -f
printf "<%s>\n" $PATH
'
echo "$IFS"
# or
call . some-file
# to have variables local during the execution of the sourced
# file...
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.25-rc8 (PREEMPT)
Locale: LANG=en_GB.ISO-8859-15, LC_CTYPE=en_US.ISO-8859-15 (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/bash
Versions of packages posh depends on:
ii debconf [debconf-2.0] 1.5.22 Debian configuration management sy
ii libc6 2.7-11 GNU C Library: Shared libraries
posh recommends no packages.
-- debconf-show failed
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