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Remove unused var from calculator grammar.

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Dmitry Ivanov 2015-01-07 22:32:52 +05:00 committed by Dmitry Ivanov
parent 8c1e8471a9
commit 360ffe84a2
2 changed files with 2 additions and 2 deletions
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2
chapter3/parsec.hs
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@ -124,7 +124,7 @@ parens m = do
-- digit = "0" | "1" | ... | "8" | "9".
-- expr = term { addop term }.
-- term = factor { mulop factor }.
-- factor = "(" expr ")" | var | number.
-- factor = "(" expr ")" | number.
-- addop = "+" | "-".
-- mulop = "*".

2
parsers.md
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@ -153,7 +153,7 @@ number = [ "-" ] digit { digit }.
digit = "0" | "1" | ... | "8" | "9".
expr = term { addop term }.
term = factor { mulop factor }.
factor = "(" expr ")" | var | number.
factor = "(" expr ")" | number.
addop = "+" | "-".
mulop = "*".
```