fix bug for solaris.

dnsapi/deploy: remove POSIX character classes from sed/grep patterns

Solaris /usr/bin/sed and /usr/bin/grep parse [[:space:]] etc. as a
literal bracket set and silently mis-match. Replace with [ ]* for
JSON matching, a printf-tab bracket for user-input trimming, and
[0-9] for digits; also drop GNU-only sed -r/-E in rage4, selfhost
and selectel, and reuse _strip_blank_lines in byteplus_alb.

dnsapi/dns_selfhost.sh

@@ -42,7 +42,10 @@ dns_selfhost_add() {
   # only match full domains (at the beginning of the string or with a leading whitespace),
   # e.g. don't match mytest.example.com or sub.test.example.com for test.example.com
   # if the domain is defined multiple times only the last occurance will be matched
-  mapEntry=$(echo "$SELFHOSTDNS_MAP" | sed -n -E "s/(^|^.*[[:space:]])($fulldomain)(:[[:digit:]]+)([:]?[[:digit:]]*)(.*)/\2\3\4/p")
+  # prepend a space to each line so "start of line" and "after whitespace"
+  # can both be matched as "after a space/tab" (portable BRE, no ERE (^|..))
+  _selfhost_tab="$(printf '\t')"
+  mapEntry=$(echo "$SELFHOSTDNS_MAP" | sed 's/^/ /' | sed -n "s/.*[ $_selfhost_tab]\($fulldomain:[0-9][0-9]*:\{0,1\}[0-9]*\).*/\1/p")
   _debug2 mapEntry "$mapEntry"
   if test -z "$mapEntry"; then
     _err "SELFHOSTDNS_MAP must contain the fulldomain incl. prefix and at least one RID"
@@ -54,7 +57,7 @@ dns_selfhost_add() {
   rid2=$(echo "$mapEntry" | cut -d: -f3)
 
   # read last used rid domain
-  lastUsedRidForDomainEntry=$(echo "$SELFHOSTDNS_MAP_LAST_USED_INTERNAL" | sed -n -E "s/(^|^.*[[:space:]])($fulldomain:[[:digit:]]+)(.*)/\2/p")
+  lastUsedRidForDomainEntry=$(echo "$SELFHOSTDNS_MAP_LAST_USED_INTERNAL" | sed 's/^/ /' | sed -n "s/.*[ $_selfhost_tab]\($fulldomain:[0-9][0-9]*\).*/\1/p")
   _debug2 lastUsedRidForDomainEntry "$lastUsedRidForDomainEntry"
   lastUsedRidForDomain=$(echo "$lastUsedRidForDomainEntry" | cut -d: -f2)