patch b0cebeb0d05720d8b145fc479b09238a463a26cf
Author: Enrique D. Bosch <presidev@AT@gmail.com>
Date:   Sat Jun  4 17:05:02 CEST 2016
  * Improve capabilities parse routine
diff -rN -u old-idlebiff/idlebiff new-idlebiff/idlebiff
--- old-idlebiff/idlebiff	2024-05-19 10:06:20.441786221 +0200
+++ new-idlebiff/idlebiff	2024-05-19 10:06:20.441786221 +0200
@@ -31,9 +31,12 @@
 namespace eval shared \
 {
   variable idle 0
-  variable idlecap 0
-  variable logindiscap 0
-  variable esearchcap 0
+  array set cap \
+  {
+    idle 0
+    logindisabled 0
+    esearch 0
+  }
   variable msgs 0
   variable sock
   variable conf
@@ -248,9 +251,9 @@
 proc login { con retr } \
 {
   variable ::shared::conf
-  variable ::shared::logindiscap
+  variable ::shared::cap
 
-  if $logindiscap { error logindisabled }
+  if $cap(logindisabled) { error logindisabled }
 
   if $retr { unset conf(pass) }
   if ![ info exists conf(pass) ] { set conf(pass) [ get_password $retr ] }
@@ -301,31 +304,21 @@
 
 proc ask_unseen { con } \
 {
-  variable ::shared::esearchcap
+  variable ::shared::cap
 
-  if $esearchcap { imap_command_tagged $con "SEARCH RETURN (COUNT) UNSEEN" } \
-            else { imap_command_tagged $con "SEARCH UNSEEN" }
+  if $cap(esearch) { imap_command_tagged $con "SEARCH RETURN (COUNT) UNSEEN" } \
+              else { imap_command_tagged $con "SEARCH UNSEEN" }
 }
 
-proc check_cap_logindis { linea } \
+proc check_cap { linea capname } \
 {
-  variable ::shared::logindiscap
-
-  if !$logindiscap { set logindiscap [ regexp -nocase -lineanchor {.*capability .*logindisabled(?: .*|].*|$)} $linea ] }
-}
+  variable ::shared::cap
 
-proc check_cap_idle { linea } \
-{
-  variable ::shared::idlecap
-
-  if !$idlecap { set idlecap [ regexp -nocase -lineanchor {.*capability .*idle(?: .*|].*|$)} $linea ] }
-}
-
-proc check_cap_esearch { linea } \
-{
-  variable ::shared::esearchcap
-
-  if !$esearchcap { set esearchcap [ regexp -nocase -lineanchor {.*capability .*esearch(?: .*|].*|$)} $linea ] }
+  if !$cap($capname) \
+  {
+    set rexp ".*capability .*${capname}(?: .*|].*|$)"
+    set cap($capname) [ regexp -nocase -lineanchor $rexp $linea ]
+  }
 }
 
 proc idle_cycle { con check } \
@@ -357,15 +350,14 @@
 proc parse_greeting { con } \
 {
   set linea [ read_line $con ]
-  check_cap_logindis $linea
+  check_cap $linea logindisabled
   if [ ok_untagged $linea ] { fileevent $con readable { parse_noop $con } }
 }
 
 proc parse_noop { con } \
 {
-
   set linea [ read_line $con ]
-  check_cap_logindis $linea
+  check_cap $linea logindisabled
   if [ ok_tagged $linea ] \
   {
     fileevent $con readable { parse_login $con }
@@ -375,14 +367,14 @@
 
 proc parse_login { con } \
 {
-  variable ::shared::idlecap
+  variable ::shared::cap
 
   set linea [ read_line $con ]
-  check_cap_idle $linea
-  check_cap_esearch $linea
+  check_cap $linea idle
+  check_cap $linea esearch
   if [ ok_tagged $linea ] \
   {
-    if $idlecap { init_idle $con } \
+    if $cap(idle) { init_idle $con } \
     else \
     {
       fileevent $con readable { parse_cap $con }
@@ -394,14 +386,14 @@
 
 proc parse_cap { con } \
 {
-  variable ::shared::idlecap
+  variable ::shared::cap
 
   set linea [ read_line $con ]
-  check_cap_idle $linea
-  check_cap_esearch $linea
+  check_cap $linea idle
+  check_cap $linea esearch
   if [ ok_tagged $linea ] \
   {
-    if $idlecap { init_idle $con } \
+    if $cap(idle) { init_idle $con } \
     else { error no idle capability } \
   } 
 }
@@ -423,13 +415,13 @@
   variable ::shared::img_up
   variable ::shared::img_down
   variable ::shared::new_messages
-  variable ::shared::esearchcap
+  variable ::shared::cap
 
-  if $esearchcap { set rexpr {^\*\s+esearch\s+\(tag\s*[^)]*\)\s+count\s+(.*)$} } \
-            else { set rexpr {^\*\s+search\s+(.*)$} }
+  if $cap(esearch) { set rexpr {^\*\s+esearch\s+\(tag\s*[^)]*\)\s+count\s+(.*)$} } \
+              else { set rexpr {^\*\s+search\s+(.*)$} }
   if [ regexp -lineanchor -nocase $rexpr $linea -> res ] \
   {
-    if !$esearchcap { set res [ llength $res ] }
+    if !$cap(esearch) { set res [ llength $res ] }
     set new_messages $res
     if { $new_messages > 0 } \
          { set current $img_up } \