Scanner Class Reference

Scans input for tokens. More...

#include <instrset.h>

List of all members.

Classes
class	Token
	Token type returned by Scanner. More...
Public Member Functions
int	line ()
	Returns actual row in the input stream.
	Scanner (const char *filename)
	Creates scanner.
Token	Scan ()
	Reads next token. tk_none type is returned when no token is in input stream.
Protected Member Functions
int	getc ()
void	ungetc (int c)
Protected Attributes
const char *	_filename
ifstream	input

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Detailed Description

Scans input for tokens.

Definition at line 131 of file instrset.h.

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Constructor & Destructor Documentation

Scanner::Scanner

(

const char *

filename

)

Creates scanner.

Definition at line 155 of file instrset.cc.

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Member Function Documentation

int Scanner::getc

(

)

[protected]

Definition at line 132 of file instrset.cc.

Referenced by Scan().

int Scanner::line

(

)

[inline]

Returns actual row in the input stream.

Definition at line 154 of file instrset.h.

Referenced by Symbols::Load(), and Scan().

Scanner::Token Scanner::Scan

(

)

Reads next token. tk_none type is returned when no token is in input stream.

Definition at line 161 of file instrset.cc.

References getc(), Scanner::Token::int_value, line(), lower, Scanner::Token::str_value, tk_comma, tk_equal, tk_ident, tk_number, tk_parcl, tk_parop, tk_plus, tk_semicol, tk_text, Scanner::Token::type, uint2str(), and ungetc().

Referenced by Symbols::Load(), and Parser::Parse().

void Scanner::ungetc

(

int

c

)

[protected]

Definition at line 148 of file instrset.cc.

Referenced by Scan().

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Member Data Documentation

const char* Scanner::_filename [protected]

Definition at line 136 of file instrset.h.

ifstream Scanner::input [protected]

Definition at line 137 of file instrset.h.

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

• instrset.h
• instrset.cc