[antlr-interest] Overloaded Lexemes!

[John D. Mitchell]

>>>>> "steve" == steve taplin <steve_taplin at yahoo.co.uk> writes:
[...]

> I am attempting to parse a computer language that contains comments (that
> may contain any characters). They are of the form:

> COMMENT TEXT(jasdfjalk;fjkl;%$£$%lldf'slf)

> COMMENT TEXT(jas...dfjalk;fjkl;%$£$%lldf'slfsd][}{}*&fdsadsvdf#'''""")
> ...

Is the comment start delimiter literally the characters "COMMENT TEXT"
followed by a left-parenthesis or is it the characters "COMMENT" followed
by another set of chacters (that your are refering to as TEXT) followed by
a left-parenthesis or something else?

Is whitespace allowed inside the comment?  Anywhere, nowhere, or just
inside the parentheses?

Is the end delimiter exactly a right-parenthesis immediately followed by a
newline sequence or can there be other whitespace in-between?

In addition, must comments be contained completely on a single line or can
they span multiple lines?  If there must be on a single line, is there some
reason that you need to care about the internal structure of the comment?

Did you make sure that you set a proper charVocab range?

Take care,
	John


 
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