On 5/23/2011 7:10 AM, Lorenzo Bettini wrote:
(?=\()
checks whether after the name there's a ( but does not consume it
can the syntax of your procedure definition be identified with a regular
expression?
Can you make some examples of procedures?
cheers
Lorenzo
Hello,
In 'IDL' procedures are *called* in the following way:
PROCEDURE_NAME , ARGUMENT_1, ARGUMENT_2, ARGUMENT_3, .... , ARGUMENT_N
As you can see no brackets or parenthesis are used. The problem here is
a regex would need to deal with only the first case of the
comma positioned after 'PROCEDURE_NAME' and ignore all other groupings
until the end of the statement.
There is also on other problem in that statements can use continuation
where a '$' indicates the current statement continues on to the
next line:
PROCEDURE_NAME , ARGUMENT_1, $
ARGUMENT_2, ARGUMENT_3, $
.... , ARGUMENT_N
In this case regex needs to distinguish between the case of
'PRODEDURE_NAME' and cases where the statement has been continued.
ie: not highlight 'ARGUMENT_2' due to the comma following there.
Declarations for *both* functions and procedures are written in
similar ways. The difference is only the 'RETURN' value in the case
of functions:
FUNCTION function_name, arg_1, arg_2 $
arg_3, arg_4, ...., arg_n
....<PROGRAM STATEMENTS>...
RETURN, some_value
END
PRO procedure_name, arg_1, arg_2 arg_3, arg_4, ....,$
arg_n
....<PROGRAM STATEMENTS>...
END
Best Regards,
Peter
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