[PATCH] Fix unintentional history modifiers.

[Daniel Shahaf <d.s@daniel.shahaf.name>]

---
The _dates one worked even before this patch (!); I haven't investigated why.

Daniel

 Completion/Darwin/Type/_retrieve_mac_apps | 4 ++--
 Completion/Unix/Command/_dsh              | 2 +-
 Completion/Unix/Type/_dates               | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Completion/Darwin/Type/_retrieve_mac_apps b/Completion/Darwin/Type/_retrieve_mac_apps
index ba15577..f24d36c 100644
--- a/Completion/Darwin/Type/_retrieve_mac_apps
+++ b/Completion/Darwin/Type/_retrieve_mac_apps
@@ -71,7 +71,7 @@ _retrieve_mac_apps() {
 
     # Get application search method
     typeset retrieve
-    if ! zstyle -s ":completion:*:*:$service:commands" search-method retrieve
+    if ! zstyle -s ":completion:*:*:${service}:commands" search-method retrieve
     then
       if [[ -d /.Spotlight-V100 ]]; then
         # / is indexed to use Spotlight
@@ -80,7 +80,7 @@ _retrieve_mac_apps() {
         # Fall back to the old way
         retrieve=_mac_apps_old_retrieve 
       fi
-      zstyle ":completion:*:*:$service:commands" search-method $retrieve
+      zstyle ":completion:*:*:${service}:commands" search-method $retrieve
     fi
 
     # Get root directories to search applications
diff --git a/Completion/Unix/Command/_dsh b/Completion/Unix/Command/_dsh
index 8c5c232..fc76800 100644
--- a/Completion/Unix/Command/_dsh
+++ b/Completion/Unix/Command/_dsh
@@ -25,7 +25,7 @@ _arguments -s -C -S \
   '*::args: _normal' && return
 
 if [[ $state = groups ]]; then
-  if ! zstyle -s ":completion:$curcontext:dsh-groups" dsh-groups grp; then
+  if ! zstyle -s ":completion:${curcontext}:dsh-groups" dsh-groups grp; then
     [[ -e ~/.dsh/group ]] && grp="~/.dsh/group" || return 1
   fi
   _path_files -W ~/.dsh/group && return
diff --git a/Completion/Unix/Type/_dates b/Completion/Unix/Type/_dates
index e4fa62e..0af10eb 100644
--- a/Completion/Unix/Type/_dates
+++ b/Completion/Unix/Type/_dates
@@ -22,10 +22,10 @@ local future mlabel mfmt mlabels
 
 zparseopts -D -K -E f:=format F=future
 (( future = $#future ? 1 : -1 ))
-zstyle -s ':completion:$curcontext:dates' date-format userformat
+zstyle -s ":completion:${curcontext}:dates" date-format userformat
 format=${userformat:-${format[2]:-%F}}
 
-zstyle -a ':completion:$curcontext:dates' max-matches-length r
+zstyle -a ":completion:${curcontext}:dates" max-matches-length r
 for ri in $r; do
   [[ $ri = [0-9]##% ]] && (( ri = LINES * .${ri%%%} ))
   (( ri < rows )) && (( rows=ri ))