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-rw-r--r--Completion/Core/_oldlist53
1 files changed, 53 insertions, 0 deletions
diff --git a/Completion/Core/_oldlist b/Completion/Core/_oldlist
new file mode 100644
index 000000000..bcb3e148a
--- /dev/null
+++ b/Completion/Core/_oldlist
@@ -0,0 +1,53 @@
+#autoload
+
+[[ _matcher_num -gt 1 ]] && return 1
+
+local list
+
+zstyle -s ":completion:${curcontext}:" old-list list
+
+# If this is a listing widget and there is already an old list,
+# and either the style :oldlist:old-list is `always', or it is not `never'
+# and the list is not already shown, then use the existing list for listing
+# (even if it was generated by another widget).
+# Do this also if there is an old list and it was generated by the
+# completer named by the oldlist_list key.
+
+if [[ -n $compstate[old_list] && $list != never ]]; then
+  if [[ $WIDGET = *list* && ( $list = always || $list != shown ) ]]; then
+    compstate[old_list]=keep
+    return 0
+  elif [[ $list = *${_lastcomp[completer]}* ]]; then
+    [[ "$_lastcomp[insert]" = unambig* ]] && compstate[to_end]=single
+    compstate[old_list]=keep
+    if [[ -o automenu ]]; then
+      compstate[insert]=menu
+    else
+      compadd -Qs "$SUFFIX" - "$PREFIX"
+    fi
+    return 0
+  fi
+fi
+
+# If this is a completion widget, and we have a completion inserted already,
+# and the style :oldlist:old-menu is `true', then we cycle through the
+# existing list (even if it was generated by another widget).
+
+if [[ -z $compstate[old_insert] && -n $compstate[old_list] ]]; then
+  compstate[old_list]=keep
+elif [[ $WIDGET = *complete(|-prefix|-word) ]] &&
+     zstyle -t ":completion:${curcontext}:" old-menu; then
+  if [[ -n $compstate[old_insert] ]]; then
+    compstate[old_list]=keep
+    if [[ $WIDGET = *reverse* ]]; then
+      compstate[insert]=$(( compstate[old_insert] - 1 ))
+    else
+      compstate[insert]=$(( compstate[old_insert] + 1 ))
+    fi
+  else
+    return 1
+  fi
+  return 0
+fi
+
+return 1