vhdl-enum-values-regexp

vhdl-enum-values-regexp is a variable defined in `vhdl-mode.el'.
Its value is

"\\<\\(\\(?:append_mode\\|error\\|f\\(?:a\\(?:\\(?:ilur\\|ls\\)e\\)\\|s\\)\\|hr\\|left\\|m\\(?:in\\|ode_error\\|s\\)\\|n\\(?:ame_error\\|ote\\|s\\)\\|open_ok\\|ps\\|r\\(?:ead_mode\\|ight\\)\\|s\\(?:ec\\|tatus_error\\)\\|true\\|us\\|w\\(?:arning\\|rite_mode\\)\\)\\)\\>"

Documentation:
Regexp for VHDL standardized enumeration values.