Reformat usage of pattern

1 files changed, 3 insertions, 3 deletions

diff --git a/gist b/gist
index f1770a0..594f323 100755
--- a/gist
+++ b/gist
@@ -157,9 +157,9 @@ _process_json() {
 _configure() {
   [[ $# == 0 ]] && ${EDITOR:-vi} $CONFIG && return 0
 
-  local key=$1; local value="$2"
-  [[ ! " ${VALID_CONFIGS[@]} " =~ " ${key} " ]] \
-  && echo "Not a valid key for configuration, use <${VALID_CONFIGS[@]}> instead." \
+  local key=$1; local value="$2"; valid_configs=${VALID_CONFIGS[@]}
+  [[ ! ${key} =~ ^(${valid_configs// /|})$ ]] \
+  && echo "Not a valid key for configuration, use <${valid_configs[@]// /|}> instead." \
   && return 1
 
   case $key in