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Diffstat (limited to 'trunk/lib/rdoc/tokenstream.rb')
-rw-r--r-- | trunk/lib/rdoc/tokenstream.rb | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/trunk/lib/rdoc/tokenstream.rb b/trunk/lib/rdoc/tokenstream.rb new file mode 100644 index 0000000000..0a1eb9130b --- /dev/null +++ b/trunk/lib/rdoc/tokenstream.rb @@ -0,0 +1,33 @@ +module RDoc; end + +## +# A TokenStream is a list of tokens, gathered during the parse of some entity +# (say a method). Entities populate these streams by being registered with the +# lexer. Any class can collect tokens by including TokenStream. From the +# outside, you use such an object by calling the start_collecting_tokens +# method, followed by calls to add_token and pop_token. + +module RDoc::TokenStream + + def token_stream + @token_stream + end + + def start_collecting_tokens + @token_stream = [] + end + + def add_token(tk) + @token_stream << tk + end + + def add_tokens(tks) + tks.each {|tk| add_token(tk)} + end + + def pop_token + @token_stream.pop + end + +end + |