gopher.h: 'p' and 'n' commands

diff --git a/gopher.sh b/gopher.sh
index a6cc44d7058aa659fe0fbeec1eb73a259c933333..64a54f7225fd8a07a5abbe9e7b7aa9b4788a993e 100755 (executable)
--- a/gopher.sh
+++ b/gopher.sh
@@ -10,6 +10,10 @@
 #              ...
 #              download: fake mode to download the result without changes
 
+# Manual:
+#      When asked for a number (non-dialog uses only), you can also
+#      enter 'n' or 'p' to get the next or previous item (+1 or -1)
+
 # ENV variables:
 #      USE_DIALOG: force the usage of the command 'dialog'
 #                : true if dialog is found
@@ -159,7 +163,7 @@ download)
        cat "$tmp" | less
 ;;
 1|+)
-       CHOICE=start
+       CHOICE=0
        while [ "$CHOICE" != "" ]; do
                if [ "$USE_DIALOG" = 1 ]; then
                        > "$tmp.menu"
@@ -190,7 +194,17 @@ download)
                        rm "$tmp.choice"
                else
                        cat_menu "$tmp" | less
-                       read -p "[$SELECTOR]: " CHOICE
+                       read -p "[$SELECTOR]: " NEW_CHOICE
+                       if [ "$NEW_CHOICE" = p ]; then
+                               CHOICE=`expr "$CHOICE" - 1 2>/dev/null`
+                               if [ "$CHOICE" -lt 0 ]; then
+                                       CHOICE=`cat "$tmp" | grep "^$PREFIX" | wc --lines`
+                               fi
+                       elif [ "$NEW_CHOICE" = n ]; then
+                               CHOICE=`expr "$CHOICE" + 1 2>/dev/null`
+                       else
+                               CHOICE="$NEW_CHOICE"
+                       fi
                fi
                
                [ "$CHOICE" = q ] && exit 255 # force-quit