Sorry forgot the bit to retrive values
It is possible to retrive numeric values without eval
i.e.
val=$((${ArrayName}[Index]))
works quiet well and is quick, in fact I used to use this quiet a lot.
There is also a backdoor approach that I don't really advise.
val="${ArrayName}[Index]"
echo "${!val}"
What I actually tend to do is.
ks_array_ChkName() {
local LC_COLLATE=C
case "${1:?Missing Variable Name}" in
[!a-zA-Z_]* | *[!][a-zA-Z_0-9]* ) return 3;;
esac
}
ks_val_Get() {
ks_array_ChkName "${1:?Missing Destination Variable Name}" ||
return $?
ks_array_ChkName "${2:?Missing Source Variable Name}" || return $?
eval "${1}=\"\${${2}:-}\""
}
ks_array_GetVal() { ks_val_Get "${1}" "${2}[${3}]" ; }
ks_array_SetVal() { ks_val_Set "${1}[${2}]" "${3:-}" ; }
Cheers
Gesendet: Samstag, 15. Juni 2013 um 15:03 Uhr
Von: "John Kearney" <dethrop...@web.de>
An: "Linda Walsh" <b...@tlinx.org>
Cc: bug-bash <bug-bash@gnu.org>
Betreff: Aw: currently doable? Indirect notation used w/a hash
In bash there are 2 options that I use.
1.
ArrayName=blah
printf -V "${ArrayName}[Index]" "%s" "Value To Set"
2.
ks_val_ChkName() {
local LC_COLLATE=C
case "${1:?Missing Variable Name}" in
[!a-zA-Z_]* | *[!a-zA-Z_0-9]* | '' ) return 3;;
esac
}
ks_array_SetVal() {
ks_val_ChkName "${1:?Missing Array Name}" || return $?
ks_val_ChkName "a${2:?Missing Array Index}" || return $?
eval "${1}"["${2}"]'="${3:-}"'
}
ks_array_SetVal "${ArrayName}" "Index" "Value"
Cheers
Gesendet: Sonntag, 09. Juni 2013 um 23:02 Uhr
Von: "Linda Walsh" <b...@tlinx.org>
An: bug-bash <bug-bash@gnu.org>
Betreff: currently doable? Indirect notation used w/a hash
I was wondering if I was missing some syntax somewhere...
but I wanted to be able to pass the name of a hash in
and store stuff in it and later retrieve it... but it
looks like it's only possible with an eval or such?
Would be nice....(??)*sigh*
