Debug

Debug CLI module.

Main function is the CommandLine type which implements a simple command line for interactive session for the user.

This supports the following operations:

Left and right key moves cursor
Delete or backspace delete left character
Enter execute command
Up and down arrow navigates command history

Example of use is found the uartcli demo.

Types

CommandLine* = RECORD
        line- : ARRAY MaxLineLength OF CHAR;
        history : ARRAY HistoryLength OF CHAR;
        pos-, len-, hidx : LENGTH;
        state : INTEGER;
        quit* : BOOLEAN;
    END;

Procedures

Init

Initialize CommandLine.

PROCEDURE Init*(VAR cmd : CommandLine);

CommandLine.WriteChar

Write char to screen. Must be implemented.

PROCEDURE (VAR this : CommandLine) WriteChar* (ch : CHAR);

CommandLine.WriteStr

Write string to screen.

PROCEDURE (VAR this : CommandLine) WriteStr* (str- : ARRAY OF CHAR);

CommandLine.Clear

Clear screen.

PROCEDURE (VAR this : CommandLine) Clear*;

CommandLine.Reset

Reset ANSI attributes.

PROCEDURE (VAR this : CommandLine) Reset*;

CommandLine.OnWelcome

Write welcome message to screen.

PROCEDURE (VAR this : CommandLine) OnWelcome*;

CommandLine.OnPrompt

Write prompt to screen.

PROCEDURE (VAR this : CommandLine) OnPrompt*;

CommandLine.OnCommand

Execute command. Return TRUE if a valid command.

PROCEDURE (VAR this : CommandLine) OnCommand* (): BOOLEAN;

CommandLine.ProcessChar

Process single input char.

PROCEDURE (VAR this : CommandLine) ProcessChar* (ch : CHAR);