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Parser Class Reference

parser for command files. More...

#include <parser.h>

List of all members.

Public Methods
	Parser (const char *_fname)
	~Parser ()
void	error (int errnum, const char *args, ...)
void	print (const char *args, ...)
void	printcurtok (void)
void	gentoken (void)
bool	eatOpen (bool force)
bool	eatClose (bool force)
int	eatNumber (void)
bool	eatSNumber (int &)
Public Attributes
int	curtok
char	tok_text [MAX_TOK_LENGTH]
Private Methods
int	gchar (void)
void	push (void)
int	type (int)
void	skipwhite (void)
void	vprint (const char *args, va_list ap)
Private Attributes
char*	fname
FILE*	f
int	lineno
int	curch

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Detailed Description

parser for command files.

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Constructor & Destructor Documentation

Parser::Parser ( const char * _fname )

constructor opens _fname for reading and initializes data

Parser::~Parser ( void )

destructor closes command file

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Member Function Documentation

bool Parser::eatClose ( bool force )

eats a closing bracket ')'. if force is false, the bracket is optional. true, a error is printed if there is no bracket Returns: true if there was a bracket

int Parser::eatNumber ( void )

eats a positive integer Returns: >=0 if there was a number -1 if there was no number

bool Parser::eatOpen ( bool force )

eats a opening bracket '('. if force is false, the bracket is optional. true, a error is printed if there is no bracket Returns: true if there was a bracket

bool Parser::eatSNumber ( int & res )

eats a integer writes it into the argument Returns: true if there was a number false if there was no number

void Parser::error ( int errnum, const char * args, ... )

prints an error errnum is one of the ERROR_ or WARNING_ constants from errdesc.h calls describe_error $$ is replaced by current token

int Parser::gchar ( void ) [private]

void Parser::gentoken ( void )

drop current token and read next from input file

void Parser::print ( const char * args, ... )

replaces "$$" by current token, including ''

void Parser::printcurtok ( void )

prints current token to screen. Used for $$ replacements

void Parser::push ( void ) [private]

void Parser::skipwhite ( void ) [private]

int Parser::type ( int ch ) [private]

void Parser::vprint ( const char * args, va_list ap ) [private]

similar to vprintf() replaces $$ by current token

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Member Data Documentation

int Parser::curch [private]

int Parser::curtok

current token type. Value is one of the PT_ defines. class ensures that calling functions never get PT_CBEGIN, PT_CEND and PT_LINECOM.

FILE * Parser::f [private]

char * Parser::fname [private]

int Parser::lineno [private]

char Parser::tok_text[MAX_TOK_LENGTH]

string with the current token if curtok is PT_TEXT

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

• parser.h
• parser.cpp

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