+
+\ifcsname jsc@mag@xrealtrue \endcsname \else
+ \expandafter\expandafter\expandafter \ExplSyntaxOff \expandafter \endinput
+\fi
+\ifjsc@mag@xreal
+ \cs_if_exist:cTF { ltjs@orig@get@external@font } {
+ % ltjsclasses: use lua
+ \cs_new:Nn \lltjp_um_unmag_fsize:
+ {
+ \cs_gset:Nx \lltjp_um_f@size: {\directlua{luatexja.ltjs_unmagnify_fsize(\f@size)}}
+ \cs_gset:Nx \lltjp_um_sf@size: {\directlua{luatexja.ltjs_unmagnify_fsize(\sf@size)}}
+ \cs_gset:Nx \lltjp_um_ssf@size: {\directlua{luatexja.ltjs_unmagnify_fsize(\ssf@size)}}
+ }
+ }{
+ % bxjscls: use \jsc@preadjust@extract@font
+ \cs_new:Nn \lltjp_um_unmag_fsize:
+ {
+ \group_begin:
+ \jsc@preadjust@extract@font
+ \cs_gset_eq:NN \lltjp_um_f@size: \f@size
+ \group_end:
+ \group_begin:
+ \cs_set_eq:NN \f@size \sf@size \jsc@preadjust@extract@font
+ \cs_gset_eq:NN \lltjp_um_sf@size: \f@size
+ \group_end:
+ \group_begin:
+ \cs_set_eq:NN \f@size \ssf@size \jsc@preadjust@extract@font
+ \cs_gset_eq:NN \lltjp_um_ssf@size: \f@size
+ \group_end:
+ }
+ }
+ \pretocmd { \__um_fontspec_select_font: } {
+ \cs_set_eq:NN \lltjp_um_orig_fsize: \f@size
+ \lltjp_um_unmag_fsize:
+ \cs_set_eq:NN \f@size \lltjp_um_f@size:
+ \cs_set_eq:NN \tf@size \lltjp_um_f@size:
+ \cs_set_eq:NN \sf@size \lltjp_um_sf@size:
+ \cs_set_eq:NN \ssf@size \lltjp_um_ssf@size:
+ } {} {}
+ \apptocmd { \__um_fontspec_select_font: } {
+ \cs_set_eq:NN \f@size \lltjp_um_orig_fsize:
+ } {} {}
+\fi
+