| directive         | context           | content           | line oriented?
|-------------------|-------------------|-------------------|-----------------
  #inputMode        | dict              | word
  #default          | dict              | entry introducer
  #merge            | dict              | entry introducer
  #overwrite        | dict              | entry introducer
  #warn             | dict              | entry introducer
  #error            | dict              | entry introducer
  #remove           | dict              | keyType or List<keyType>
                    |                   |
  #include          | dict/primitive    | string
  #sinclude         | dict/primitive    | string
  #includeEtc       | dict/primitive    | string
  #sincludeEtc      | dict/primitive    | string
  #includeFunc      | dict              | word
                    |                   |
  #message          | dict/primitive    | string or braced content
  #word             | dict/primitive    | string or braced content
  #eval             | primitive         | string or braced content
                    |                   |
  #calc             | dict/primitive    | string
  #codeStream       | dict/primitive    | dictionary
  #if               | dict              | string
  #ifeq             | dict              | entry entry


Deprecated

| directive         | comments                              |
|-------------------|---------------------------------------|
  #includeIfPresent | same as #sinclude                     |


Pending future extensions (considered reserved)

| directive         | context           | content           | line oriented?
|-------------------|-------------------|-------------------|-----------------
  #define           | dict              | entry introducer
  #local            | dict              | entry introducer
  #undef            | dict              | keyType or List<keyType>


2021-11-24
