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110 lines
4.3 KiB
C
Executable File
110 lines
4.3 KiB
C
Executable File
/*! \file cmdline.h \brief Command-Line Interface Library. */
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//*****************************************************************************
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//
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// File Name : 'cmdline.h'
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// Title : Command-Line Interface Library
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// Author : Pascal Stang - Copyright (C) 2003
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// Created : 2003.07.16
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// Revised : 2003.07.16
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// Version : 0.1
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// Target MCU : Atmel AVR Series
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// Editor Tabs : 4
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//
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// Description :
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// This Command-Line interface library is meant to provide a reusable
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// terminal-like user interface much like a DOS command line or UNIX terminal.
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//
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// The cmdline library does the following things for you:
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// -Prints command prompts
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// -Gathers a command string from the user (with editing features)
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// -Parses the command string when the user presses [ENTER]
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// -Compares the entered command to the command database
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// \-Executes the corresponding function if a match is found
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// \-Reports an error if no match is found
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// -Provides functions to retrieve the command arguments:
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// \-as strings
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// \-as decimal integers
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// \-as hex integers
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//
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// Supported editing features include:
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// -Backspace support
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// -Mid-line editing, inserting and deleting (left/right-arrows)
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// -Command History (up-arrow) (currently only one command deep)
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//
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// To use the cmdline system, you will need to associate command strings
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// (commands the user will be typing) with your function that you wish to have
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// called when the user enters that command. This is done by using the
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// cmdlineAddCommand() function.
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//
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// To setup the cmdline system, you must do these things:
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// -Initialize it: cmdlineInit()
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// -Add one or more commands to the database: cmdlineAddCommand()
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// -Set an output function for your terminal: cmdlineSetOutputFunc()
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//
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// To operate the cmdline system, you must do these things repeatedly:
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// -Pass user input from the terminal to: cmdlineSetOutputFunc()
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// -Call cmdlineMainLoop() from your program's main loop
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//
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// The cmdline library does not assume an input or output device, but can be
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// configured to use any user function for output using cmdlineSetOutputFunc()
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// and accepts input by calling cmdlineInputFunc(). This means the cmdline
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// library can operate over any interface including UART (serial port),
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// I2c, ethernet, etc.
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//
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// ***** FOR MORE INFORMATION ABOUT USING cmdline SEE THE AVRLIB EXAMPLE *****
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// ***** CODE IN THE avrlib/examples DIRECTORY *****
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//
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// NOTE: This code is currently below version 1.0, and therefore is considered
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// to be lacking in some functionality or documentation, or may not be fully
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// tested. Nonetheless, you can expect most functions to work.
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//
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// This code is distributed under the GNU Public License
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// which can be found at http://www.gnu.org/licenses/gpl.txt
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//
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//*****************************************************************************
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#ifndef CMDLINE_H
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#define CMDLINE_H
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#include "global.h"
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// constants/macros/typdefs
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typedef void (*CmdlineFuncPtrType)(void);
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// functions
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//! initalize the command line system
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void cmdlineInit(void);
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//! add a new command to the database of known commands
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// newCmdString should be a null-terminated command string with no whitespace
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// newCmdFuncPtr should be a pointer to the function to execute when
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// the user enters the corresponding command tring
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void cmdlineAddCommand(u08* newCmdString, CmdlineFuncPtrType newCmdFuncPtr);
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//! sets the function used for sending characters to the user terminal
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void cmdlineSetOutputFunc(void (*output_func)(unsigned char c));
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//! call this function to pass input charaters from the user terminal
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void cmdlineInputFunc(unsigned char c);
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//! call this function in your program's main loop
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void cmdlineMainLoop(void);
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// internal commands
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void cmdlineRepaint(void);
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void cmdlineDoHistory(u08 action);
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void cmdlineProcessInputString(void);
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void cmdlinePrintPrompt(void);
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void cmdlinePrintError(void);
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// argument retrieval commands
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//! returns a string pointer to argument number [argnum] on the command line
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u08* cmdlineGetArgStr(u08 argnum);
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//! returns the decimal integer interpretation of argument number [argnum]
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long cmdlineGetArgInt(u08 argnum);
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//! returns the hex integer interpretation of argument number [argnum]
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long cmdlineGetArgHex(u08 argnum);
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#endif
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