Added editing support for library program

library

@@ -5,7 +5,7 @@ LIBRARYDIRECTORY=~/.library
 GIT=true
 
 if [[ $# -eq 0 ]] ; then
-    echo "library [ help | query query-expressions | add | emacs | git [ other-args ] | bulk-add number | report [ name | list | new name ] ]"
+    echo "library [ help | query query-expressions | add | emacs | git [ other-args ] | bulk-add number | report [ name | list | new name ] | edit id field ]"
     exit
 fi
 
@@ -107,6 +107,25 @@ bulk-add: Add a specified number of records.
 EOF
 }
 
+function do-edit {
+    ID=$1
+    shift
+    FIELD=$1
+    shift
+
+    if [[ $FIELD = "Withdrawn" ]] ; then
+        recins -e "ID = ${ID}" \
+               -f "Withdrawn" -v `date "%a, %d %b %Y %H:%M:%S %z"` \
+               ${LIBRARYFILE}
+    else
+        VALUE=$1
+        shift
+        recins -e "ID = ${ID}" \
+               -f "${FIELD}" -v "${VALUE}" \
+               ${LIBRARYFILE}
+    fi
+}
+
 COMMAND=$1
 shift
 
@@ -139,6 +158,10 @@ case ${COMMAND} in
         emacsclient --alternate-editor="" -n ${LIBRARYFILE}
         exit
         ;;
+    edit)
+        do-edit $@
+        exit
+        ;;
     *)
         display-help
         exit