Configuration Information [Automatically generated, do not change]:
Machine: sparc
OS: solaris2.8
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='sparc'
-DCONF_OSTYPE='solaris2.8' -DCONF_MACHTYPE='sparc-sun-solaris2.8'
-DCONF_VENDOR='sun' -DLOCALEDIR='/sw/opensrc/gnu/share/locale' -DPACKAGE='bash'
-DSHELL -DHAVE_CONFIG_H -I. -I. -I./include -I./lib
-I/sw/opensrc/gnu/include -I/sw/opensrc/include -I/sw/opensrc/include/freetype2
-I/usr/local/ssl/include -O6
uname output: SunOS suni2 5.8 Generic_117350-24 sun4u sparc SUNW,Sun-Blade-2500
Machine Type: sparc-sun-solaris2.8
Bash Version: 3.1
Patch Level: 0
Release Status: release
Description:
Normally, the eval builtin used in functions to set variables
makes these variables available globally otutside the function.
However, when the function gets input from a pipline, the variables
are set only locally. This bug was already present in bash-3.0, maybe
also in earlier version. The correct behavior would be very usefull
to be able to write functions which receive stdin and put it's
contens - preprocessed by awk or similar - into an array.
Note: What I atually wanted to do was to use
function arrayset {
eval $( gawk -vn=$1 '{gsub(/"/,"\\\"");printf("%s[%i]=\"%s\";",n,NR,$0);}' )
}
to set up an array containing complete unmodified lines of input,
which is not possible using read -a (setting IFS to '\n' still
supresses whitespace betweeen the words read in, there).
Repeat-By:
Prerequisites
function evalfunc_stdin # shows the bug
{
cat > /dev/null
eval $1=$2
eval echo "inside the function $1 = ${!1}"
}
function evalfunc_nostdin # works correctly
{
eval $1=$2
eval echo "inside the function $1 = ${!1}"
}
Test Procedure:
a) correct behavior, set A=test using evalfunc_nostdin:
% unset A
% echo $A
% evalfunc_nostdin A test
inside the function A = test
% echo $A
test
---> variable A is correctly set globally
b) the bug using evalfunc_stdin
% unset B
% echo $B
% echo | evalfunc_stdin B test
inside the function B = test
% echo $B
---> variable B is not set in global scope!
Fix:
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