ConfigScanner Class Reference

#include <ConfigScanner.h>

List of all members.

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Detailed Description

Class ConfigScanner is used by class ConfigParser to obtain the contents of a Rulbus configuration file one token at a time.

Class ConfigScanner analyzes the text from the Rulbus configuration file specified as stream with the constructor and breaks it into tokens.

The scanner ignores whitespace (spaces, tabs and newlines) and it recognizes the following Tokens:

             words :  keywords, e.g. rack, address, bipolar, rb8510_dac12
           numbers : octal, decimal, hexadecimal, floating point
           strings : '...' and "..."
           special : {}=;
  end-of-file : end of file indicator
             error : unrecognized token

Public Member Functions
virtual	~ConfigScanner ()
	destructor.
	ConfigScanner (std::istream &stream, String aFilename="")
	constructor.
ConfigToken *	get ()
	return next token; may throw RulbusScanError.
String	filename () const
	return the filename.
Int	linenumber () const
	return curernt linenumber.
Protected Member Functions
void	skipWhitespace ()
	skip whitespace, keep track of linenumber.
bool	seechar (char &chr)
	look ahead one character.
Protected Attributes
ConfigWordToken	wordToken
	the keyword scanner
ConfigNumberToken	numberToken
	the number scanner
ConfigStringToken	stringToken
	the string scanner
ConfigSpecialToken	specialToken
	the special token scanner
ConfigEofToken	eofToken
	the end-of-file token
ConfigErrorToken	errorToken
	the unrecognized token scanner
Private Attributes
std::istream *	is
	the stream
String	theFilename
	the filename
Int	theLinenumber
	the current linenumber

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The documentation for this class was generated from the following files:

• ConfigScanner.h
• ConfigScanner.cpp

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