On Aug 24, 7:27 pm, "Dave!" <[EMAIL PROTECTED]> wrote:
> Hello!
> I'm using PLY-2.3 to build a C language compiler, and I need to know
> if there's any way to restart the lineno counter between lexical and
> syntactic analysis.
>
> What I mean with that is that, first of all, I analyze the source
> code and show the tokens found by the lexer with lex.token() function.
> With that I obtain tokens that look like this: LexToken(RBRACE, '}',
> 22, 485). The problem comes with the syntactic analysis, where I use
> yacc.parse() function. At this point, when it detects an error I made
> it print the token that caused it, but the line number isn't the real
> line number, it doesn't restart the lineno counter between lex.token()
> and yacc.parse().
>
> For example, in a source code with 20 lines, lex.token() says that
> line 1 is line 1, but yacc.parse() says that line 1 is line 21...
>
> What can I do??
>
My only suggestion (which probably you already know) is to try and
reset the 'lineno' attribute of your lexer.
Something like (not tested):
my_lexer = lex.lex()
my_lexer.input(text_to_parse)
my_lexer.lineno = 0
my_lexer.input(text_to_parse) # I guess...
my_parser = yacc.yacc( lexter=my_lexer )
my_parser(parse)
Ciao
-----
FB
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