match: ${if match{abcd}{^([ab]+)(\\w+)\$}{$2$1}fail}
match: ${if match{wxyz}{^([ab]+)(\\w+)\$}{$2$1}fail}
match: ${if match{abcd}{^([ab]+)(\\w+)\$}{$2[${if match{xyz}{(.*)}{$1}fail}]$1}fail}
+# check for empty capture group
+match: ${if match{abc}{\N^(\S+)\s*(\S.+)*$\N}{<$2>}{}}
match_domain: ${if match_domain{a.b.c}{x.y.z:a.b.c:p.q.r}{yes}{no}}
match_domain: ${if match_domain{a.b.c}{x.y.z:p.q.r}{yes}{no}}
rc=$runrc
${run,preexpand {DIR/aux-fixed/0002.runfile 0}}
rc=$runrc
+${run{DIR/aux-fixed/0002.runfile ${quote:1}}{$value}{2}}
+rc=$runrc
# PRVS