hi Adrian,
Thanks for getting back to me. I updated my action and buffering code
for ruby:
http://numbers.brighterplanet.com/2011/06/14/stream_parser_with_ragel_and_ruby/
https://github.com/seamusabshere/ruby_ragel_examples
https://github.com/seamusabshere/ruby_ragel_examples/blob/master/test/test_ragel.rb
Hopefully these examples will help people even if they don't live in the
Ragel Guide.
Best,
Seamus
PS. For example, in Ruby, the buffering/reading loop of a scanner should
look like:
CHUNK_SIZE = 1_000_000 # bytes
def perform
# So that ragel doesn't try to get it from data.length
pe = :ignored
eof = :ignored
%% write init;
# % (this fixes syntax highlighting)
leftover = []
File.open(path) do |f|
while chunk = f.read(CHUNK_SIZE)
data = leftover + chunk.unpack('c*')
p ||= 0
pe = data.length
%% write exec;
# % (this fixes syntax highlighting)
if ts
leftover = data[ts..pe]
p = p - ts
ts = 0
else
leftover = []
p = 0
end
end
end
end
On 6/15/11 10:28 AM, Adrian Thurston wrote:
In the ruby code generator one uses ts and te, except they are offsets
against 'data', instead of pointers. Aside from that, the assumptions
and use cases are all the same.
I would like to use only C in the manual. Ragel supports a number of
languages, but it was originally designed for C and I would like the
manual to reflect that.
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