Fix for some messed up behavior for Escape key and for passing vararg

commands to bb

bb.h

@@ -225,13 +225,13 @@ static const char *bbcmdfn = "bb() {\n"
 "    if test $# -eq 0; then cat >> $BBCMD; return; fi\n"
 "    for arg; do\n"
 "        shift;\n"
-"        if echo \"$arg\" | grep \"^+[^:]*:$\" >/dev/null 2>/dev/null; then\n"
-"            if test $# -gt 0; then printf \"%s\\0\" \"$arg\" \"$@\" >> $BBCMD\n"
-"            else sed \"s/\\([^\\x00]\\+\\)/$arg\\1/g\" >> $BBCMD; fi\n"
-"            return\n"
-"        fi\n"
-"        printf \"%s\\0\" \"$arg\" >> $BBCMD\n"
-"    done\n"
+"        if expr \"$arg\" : \"^+[^:]*:$\" >/dev/null; then\n"
+"            if test $# -gt 0; then printf \"$arg%s\\0\" \"$@\" >> $BBCMD;\n"
+"            else sed \"s/\\([^\\x00]\\+\\)/$arg\\1/g\" >> $BBCMD; fi;\n"
+"            return;\n"
+"        fi;\n"
+"        printf \"%s\\0\" \"$arg\" >> $BBCMD;\n"
+"    done;\n"
 "}\n"
 "ask() {\n"
 #ifdef ASK

bindings.bb

@@ -61,7 +61,7 @@ Section: File Selection
 v,V,Space: # Toggle selection at cursor
     bb +toggle
 Escape: # Clear selection
-    bb +deselect: "$@"
+    [ $# -gt 0 ] && bb +deselect: "$@"
 Ctrl-s: # Save the selection
     [ $# -gt 0 ] && ask savename "Save selection as: " && printf '%s\0' "$@" > ~/.config/bb/"$savename"
 Ctrl-o: # Open a saved selection