From 6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:38:56 +0200 Subject: Adding upstream version 5.2.15. Signed-off-by: Daniel Baumann --- tests/nameref5.sub | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 tests/nameref5.sub (limited to 'tests/nameref5.sub') diff --git a/tests/nameref5.sub b/tests/nameref5.sub new file mode 100644 index 0000000..6855e99 --- /dev/null +++ b/tests/nameref5.sub @@ -0,0 +1,63 @@ +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +# +# nameref variables as for loop index variables are special +v1=1 +v2=2 + +# simple for loop +for v in v1 v2 +do + typeset -n ref=$v + echo $ref +done +unset v + +set -- first second third fourth fifth + +# unless you put a ${!v} in the for loop, ksh93 misbehaves +typeset -n v=v1 +for v in v1 v2; do + echo "${!v}: $v" +done +unset v + +# example cribbed from ksh93 o'reilly book +first="I am first" +second="I am in the middle" +third="I am last" + +typeset -n ref=first +for ref in first second third ; do + echo "ref -> ${!ref}, value: $ref" +done +echo final state: "ref -> ${!ref}, value: $ref" + +readonly one=1 +readonly two=2 +readonly three=3 + +typeset -n ref=one +for ref in one two three; do + echo "ref -> ${!ref}, value: $ref" +done +echo final state: "ref -> ${!ref}, value: $ref" + +unset ref +typeset -n ref=one +readonly ref + +for ref in one two three; do + echo "ref -> ${!ref}, value: $ref" +done +echo final state: "ref -> ${!ref}, value: $ref" -- cgit v1.2.3