Am 4/16/02 3:36 PM schrieb "Vsevolod Buzinov" unter <[EMAIL PROTECTED]>:
> Parse::RecDescent is much help for my task, but what gets me into trouble is
> that I can't see a way to pass any parameters to a parser except to make them
> global variables.
perldoc Parse::RecDescent
Arguments can also be passed to the start rule, simply by
appending them to the argument list with which the start
rule is called (after the "line number" parameter). For
example, given:
$parser = new Parse::RecDescent ( $grammar );
$parser->data($text, 1, "str", 2, \@arr);
# ^^^^^ ^ ^^^^^^^^^^^^^^^
# | | |
# TEXT TO BE PARSED | |
# STARTING LINE NUMBER |
# ELEMENTS OF @arg WHICH IS PASSED TO RULE data
then within the productions of the rule `data', the array
`@arg' will contain `("str", 2, \@arr)'.
.... If that's what you mean.
Marcel
