alias WhatsitTypeName

---

(alias) WhatsitTypeName = ("open"|"write"|"close"|"special"|"late_special"|"save_pos"|"late_lua"|"user_defined"|"pdf_literal"|"pdf_late_literal"...)
    | "open" -- 0
    | "write" -- 1
    | "close" -- 2
    | "special" -- 3
    | "late_special" -- 4
    | "save_pos" -- 7
    | "late_lua" -- 8
    | "user_defined" -- 9
    | "pdf_literal" -- 16
    | "pdf_late_literal" -- 17
    | "pdf_refobj" -- 18
    | "pdf_annot" -- 19
    | "pdf_start_link" -- 20
    | "pdf_end_link" -- 21
    | "pdf_dest" -- 22
    | "pdf_action" -- 23
    | "pdf_thread" -- 24
    | "pdf_start_thread" -- 25
    | "pdf_end_thread" -- 26
    | "pdf_thread_data" -- 27
    | "pdf_link_data" -- 28
    | "pdf_colorstack" -- 29
    | "pdf_setmatrix" -- 30
    | "pdf_save" -- 31
    | "pdf_restore" -- 32
    | "pdf_link_state" -- 33

Reference:

• Corresponding C source code: texnodes.c#L956-1006

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