I'm trying to parse a large file looking for instructions on each line and for
a section end marker but Parsec's manyTill function causes stack overflow, as
you can see in the following example (I'm using ghci 6.8.3):
> parse (many anyChar) "" ['a'|x<-[1..1024*64]]
It almost immediately starts printing "aaaaaaaaaaa...." and runs to completion.
> parse (manyTill anyChar eof) "" ['a'|x<-[1..1024*1024]]
*** Exception: stack overflow
I guess this happens because manyTill recursively accumulates output from the
first parser and returns only when it hits the 'end' parser. Is it possible to
write a version of 'manyTill' that works like 'many' returning output from
'anyChar' as soon as it advances through the list of tokens?
Thanks,
Daniel
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