On 23 Aug 2005, at 23:32, Michael Schidlowsky wrote:
I am working on a LALR grammar and am relatively knew to the craft of
writing LALR grammars. The grammar is for a procedural style
programming language that looks like java, and includes an additional
block appended to the text which is where the program should start
(the
equivalent of a main method, but outside the class).
I'm including the grammar file below. I'd appreciate help in two
areas:
1. How can I include support for procedure calls in addition to
function
calls? Right now CUP generates a parser that recognizes
a = myclass.fun(b);
but not
myclass.fun(b);
There is a Yacc-grammar for C++:
http://www.parashift.com/c++-faq-lite/compiler-
dependencies.html#faq-38.11
You might check how it is resolved there.
2. Are there any parts of the grammar that those of you with more
experience would recommend that I do differently? I'm not only
interested in getting this to work properly, but in the craft of
grammar
writing in general, and in making this as clear as possible to the
user
or the grammar.
Fewer rules makes a more comprehensible grammar. Sometimes token
precedences can be used.
Hans Aberg
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