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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:38:56 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:38:56 +0000
commit6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321 (patch)
treef63ce19d57fad3ac4a15bc26dbfbfa2b834111b5 /tests/nameref5.sub
parentInitial commit. (diff)
downloadbash-6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321.tar.xz
bash-6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321.zip
Adding upstream version 5.2.15.upstream/5.2.15upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/nameref5.sub')
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+# 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 <http://www.gnu.org/licenses/>.
+#
+# 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"