Ωʔͷఆٛ key–val ܗࣜͰߦ͏ ▶ l3keys2e Ͱ L A TEX2ε ΫϥεΦϓγϣϯ֦ு 1 \keys_define:nn { hello } 2 { 3 to .code:n = Hello~#1\l_hello_end_tl, 4 end .choices:nn = { exclamation, snowman } 5 { 6 \int_case:nn { \l_keys_choice_int } 7 { 8 { 1 } { \tl_set:Nn \l_hello_end_tl { ! } } 9 { 2 } { \tl_set:Nn \l_hello_end_tl { ‚ } } 10 } 11 } 12 } 13 14 \keys_set:nn { hello } { end = snowman, to = World } Hello World ‚ 18 / 27