CLIToken.cpp

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* embedded-cli v0.1                                                                                                    *
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* Copyright (c) 2021-2023 Andrew D. Zonenberg and contributors                                                         *
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/**
	@file
	@brief Implementation of CLIToken
 */
#include "stdio.h"
#include "CLIToken.h"
#include <string.h>
#include <ctype.h>

/**
	@brief Checks if a short-form command matches this token
 */
bool CLIToken::PrefixMatch(const char* fullcommand)
{
	//Null is legal to pass if we match against the end of the token array.
	//It never matches, since it's not a valid command
	if(fullcommand == NULL)
		return false;

	for(size_t i = 0; i < MAX_TOKEN_LEN; i++)
	{
		//End of input with no mismatches? It's a match
		if(m_text[i] == '\0')
			return true;

		//Early-out on the first mismatch
		if(m_text[i] != fullcommand[i])
			return false;
	}

	return true;
}

/**
	@brief Checks if a command exactly matches this token
 */
bool CLIToken::ExactMatch(const char* fullcommand)
{
	//Null is legal to pass if we match against the end of the token array.
	//It never matches, since it's not a valid command
	if(fullcommand == NULL)
		return false;

	return (0 == strcmp(m_text, fullcommand) );
}