Syntax parser

powered with PLY library More...

Collaboration diagram for Syntax parser:

Modules
	String lexer state
	Special lexer state for string parsing with \t\r\n.. control chars.

Functions
def	Q.t_newline (t)
	line counter
def	Q.t_comment (t)
	comment lexeme
def	Q.t_hex (t)
	hex
def	Q.t_binary (t)
	binary
def	Q.t_number (t)
	number
def	Q.t_integer (t)
	integer
def	Q.t_operator (t)
	operator
def	Q.t_defopeator (t)
	compiler words
def	Q.t_symbol (t)
	symbol
def	Q.t_ANY_error (t)
	required lexer error callback

Variables
list	Q.tokens
	token types binded with Qbject class tree More...
string	Q.t_ignore = ' \t\r'
	drop spaces
	Q.lexer = lex.lex()
	FORTH lexer. More...

Detailed Description

powered with PLY library

(c) David M. Beazley

Variable Documentation

lexer

Q.lexer = lex.lex()

FORTH lexer.

Todo:

use stack to allow .inc directive

tokens

list Q.tokens

Initial value:

=  ['comment','operator','defoperator','symbol','string',
          'number','integer','hex','binary']

token types binded with Qbject class tree

Every Qbject type can be matched by regexp in string form will be used as token by PLY library. To do it all Qbjects was done compatible with PLY requirements for token: they must contain predefined set of fields

See also

PLY manual.

every token type must be equal to lowercased name of correspondent Qbject class