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Diffstat (limited to 'src/Codec/Pesto/Parse.lhs')
| -rw-r--r-- | src/Codec/Pesto/Parse.lhs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/Codec/Pesto/Parse.lhs b/src/Codec/Pesto/Parse.lhs index 5e6d23c..e72fc21 100644 --- a/src/Codec/Pesto/Parse.lhs +++ b/src/Codec/Pesto/Parse.lhs @@ -22,7 +22,6 @@ Language syntax > , spaces1 > , notspace > ) where -> import Control.Applicative ((<*>), (<$>), (<*), (*>)) > import Data.Char (isSpace) > import Data.Ratio ((%)) > import Text.Parsec hiding (parse) @@ -73,6 +72,7 @@ The pesto grammar has two instruction types: The first one begins with a start symbol (``start``) and consumes any character up to and including a terminating symbol (``end``), which can be escaped with a backslash (``\``). +> betweenEscaped :: Char -> Char -> Parsec String () String > betweenEscaped start end = > char start > *> many (try (char '\\' *> char end) <|> satisfy (/= end)) @@ -92,6 +92,7 @@ Here are examples for both: The second one starts with one identifying character, ignores the following whitespace characters and then consumes an object or a quantity. +> oparg :: Char -> Parsec String () Instruction -> Parsec String () Instruction > oparg ident cont = char ident *> spaces *> cont > ingredient = oparg '+' (Ingredient <$> quantity) > tool = oparg '&' (Tool <$> quantity) |