On Tue, Aug 01, 2006 at 10:08:16PM +0200, Stephane Bortzmeyer wrote:
notFollowedBy seems to work for me and is quite simple, even for my
brain. Thanks.
Actually, it doesn't work, and is quite subtle, at least for my brain.
There was a discussion in this thread:
On Tue, Aug 01, 2006 at 09:41:40AM +0100,
Chris Kuklewicz [EMAIL PROTECTED] wrote
a message of 105 lines which said:
The problem is mentioned here:
http://www.cs.uu.nl/people/daan/download/parsec/parsec.html#notFollowedBy
notFollowedBy seems to work for me and is quite simple, even for my
Stephane Bortzmeyer wrote:
The first would be to test whether bb is followed by eof or
comma before accepting it.
notFollowedBy actually does the opposite (checking that there are no
more letters).
Are you sure that you don't actually want
* many1 letter `sepBy1` comma
? Just asking,
On Mon, Jul 31, 2006 at 10:59:14AM +0200,
Matthias Fischmann [EMAIL PROTECTED] wrote
a message of 89 lines which said:
try b | (return '-')
...
The (return 'x') is needed for type consistency.
OK, it works. Many thanks for the solution and the explanations.
On Mon, Jul 31, 2006 at 12:57:04PM +0200,
Udo Stenzel [EMAIL PROTECTED] wrote
a message of 59 lines which said:
Now 'optional x' always succeeds, so the 'try' is useless where you
placed it. You need to 'try' the argument to 'optional':
It works, too. Many thanks for the code and the
On Mon, Jul 31, 2006 at 06:51:27PM +0100,
Chris Kuklewicz [EMAIL PROTECTED] wrote
a message of 102 lines which said:
minilang = do
char 'a'
optional (try (do {comma ; char 'b'}))
optional (do {comma ; char 'c'})
eof
return OK
I now have a new problem which
