- plist = mplist ();
- mplist_add (config->vars, Mplist, plist);
- M17N_OBJECT_UNREF (plist);
- plist = mplist_add (plist, Msymbol, variable);
- plist = MPLIST_NEXT (plist);
+ /* Cancel the customization. */
+ MInputMethodInfo *custom = get_custom_info (im_info);
+ int no_custom = (! custom || ! custom->vars
+ || ! mplist__assq (custom->vars, variable));
+ if (! plist)
+ {
+ if (no_custom)
+ return 0;
+ plist = mplist ();
+ mplist_add (config->vars, Mplist, plist);
+ M17N_OBJECT_UNREF (plist);
+ plist = mplist_add (plist, Msymbol, variable);
+ }
+ else
+ {
+ if (no_custom)
+ mplist__pop_unref (plist);
+ else
+ {
+ plist = MPLIST_PLIST (plist); /* (NAME nil VALUE) */
+ plist = MPLIST_NEXT (plist); /* ([nil VALUE]) */
+ mplist_set (plist, Mnil ,NULL);
+ }
+ }