Changed default behaviour to use environment-specified $EDITOR

sns.sh

@@ -18,7 +18,7 @@ readonly SNS_RESET_COLOR='\033[0m'
     readonly SNS_ERR_NO_STORE=5 # The sns store needs to be initialized
     readonly SNS_ERR_NO_OPTS=10 # No mode argument was specified
     readonly SNS_ERR_NS_ARGS=11 # The specified mode requires an argument
-  
+    readonly SNS_ERR_NO_EDTR=15 # No editor specified in environment
   # Dependency Errors
     readonly SNS_ERR_DEPS=20   # Base error - add the following codes
     readonly SNS_ERR_NO_gpg2=1  # GPG is not installed 
@@ -31,7 +31,6 @@ typeset -a SNS_ACTION=("")
 typeset -a MISSING_DEPS
 typeset -i SNS_EXIT=0
 declare    SNS_PUBKEY= 
-
 # Function Definitions
 # sns_printError     Prints an error message
 # sns_NoteHeader     Prints standard note header to stdout
@@ -68,6 +67,14 @@ function sns_checkStore(){
   if [ -d "$SNS_STORE" ]; then true; else false; fi
 }
 function sns_sanityCheck {
+  set +u
+  if [ "$SNS_EDITOR" != "vim" ] && [ -z "$EDITOR" ]; then
+    echo "$SNS_EDITOR"
+    sns_printError "No editor specified in environment."
+    SNS_EXIT="$SNS_ERR_NO_EDTR"
+    return
+  fi
+  set -u
   if ! sns_checkDeps; then
     SNS_EXIT="$SNS_ERR_DEPS"
     for DEP in "${MISSING_DEPS[@]}"; do
@@ -173,8 +180,9 @@ printf "\n"
 
 #Determine Run Mode
 if [ -r "$SNS_STORE/.vim" ]; then
+  # Vim mode
+  readonly SNS_EDITOR="vim"
   readonly SNS_DEPS=("vim" "tree" "git")
-  
   function sns_create(){
     if [ -r "$SNS_STORE/$(echo "$@" | awk '{print $1}')" ]; then 
       sns_printError "Note already exists."
@@ -191,8 +199,9 @@ if [ -r "$SNS_STORE/.vim" ]; then
     sns_printError "Printing of Vim-encrypted notes is not supported at this time."
   }
 else
+  readonly SNS_EDITOR="$EDITOR"
   readonly SNS_DEPS=("gpg2" "tree" "git")
-  
+
     function sns_create(){
     # Make sure the note doesn't already exist
       if [ -r "$SNS_STORE/$(echo "$@" | awk '{print $1}')" ]; then 
@@ -215,7 +224,7 @@ else
       if [ ! -r /tmp/"$SNS_SID" ]; then gpg2 -d  -o /tmp/"$SNS_SID" "$SNS_NOTE"; fi
 
     # Edit the note
-      vim /tmp/"$SNS_SID"
+      "$EDITOR" /tmp/"$SNS_SID"
 
     # Make sure the notebook/section exists
       if [ ! -d "$(dirname "$SNS_NOTE")" ]; then mkdir -p "$(dirname "$SNS_NOTE")"; fi