New Translator – Command Translation

To start the translation of a command, a new get command routine was implemented and starts by getting a token taking into account an assignment statement that does not have the LET keyword.  If the first token has an error, the "expected command" error is returned since it does not matter what type of parser error was detected.

If the token obtained is a command token, the pointer to the translate function for the command is obtained from the table.  Otherwise an assignment statement is assumed and the pointer to the translate function for the LET command is obtained.  The token will be passed to the LET translate function.

The interface of the translate functions contains a reference to the translator (so the command can access the various translator routine like the get token and get expression routines), a pointer to the command token (so the command can add it to the output list), and a reference to a token pointer to be used to return the token the terminated the command or where an error was detected (and will be used to pass the first token to the LET translator function for an implied assignment statement).  The token status is returned.

If the translate function pointer is not set, the token is marked unused and a "not yet implemented" error is returned.  For now, no translate function pointers have been set in the table (none have been implemented).  The translate functions will replace the command handlers.  The token handlers are not needed with the new translator.

The new translator routine was modified to call either the get expression or the new get command routine depending on the expression mode argument.  The expression mode argument does not need to be saved with the new translator routines.  A temporary '-nt' test option was added to access the new translator routines for statements, and similarly the '-n' test option was expanded to support translator test files.  Obviously none of the translator tests succeed with the new translator routines.

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