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authorJed Barber <jjbarber@y7mail.com>2014-04-14 03:36:36 +1000
committerJed Barber <jjbarber@y7mail.com>2014-04-14 03:36:36 +1000
commit07812f903e0d09b4bb8c2ff9ac4310eb0d3ab8ee (patch)
tree9ec1d8edf74b4acaef153f07f0ad4544578066b5 /src/Thue
parentf298fcb268dbd4fe74d752077f8f012532d095c1 (diff)
Everything done for v2a except the actual character parsing
Diffstat (limited to 'src/Thue')
-rw-r--r--src/Thue/Interpreter.hs7
-rw-r--r--src/Thue/Parser.hs55
-rw-r--r--src/Thue/Test.hs4
3 files changed, 35 insertions, 31 deletions
diff --git a/src/Thue/Interpreter.hs b/src/Thue/Interpreter.hs
index 3e82826..c9758a0 100644
--- a/src/Thue/Interpreter.hs
+++ b/src/Thue/Interpreter.hs
@@ -12,10 +12,6 @@ import Thue.Parser
-data ThueVersion = Ver1 | Ver2a
- deriving (Eq)
-
-
data Choice = Random StdGen
| First
| Last
@@ -26,9 +22,10 @@ thue :: ThueProgram -> IO ThueState
thue program =
let rules = thueRules program
state = thueInitialState program
+ version = thueVersion program
gen = mkStdGen 4 --chosen by fair dice roll, guaranteed to be random
- in interpret Ver1 rules (Random gen) state
+ in interpret version rules (Random gen) state
diff --git a/src/Thue/Parser.hs b/src/Thue/Parser.hs
index a9c2d96..9d5f30b 100644
--- a/src/Thue/Parser.hs
+++ b/src/Thue/Parser.hs
@@ -4,7 +4,10 @@ module Thue.Parser (
ThueState,
ThueChar(..),
+ ThueVersion(..),
+
parseThue,
+ parseThue2a,
tCh,
tLit,
@@ -20,7 +23,8 @@ import Text.ParserCombinators.Parsec
data ThueProgram = ThueProgram { thueRules :: [ThueRule]
- , thueInitialState :: ThueState }
+ , thueInitialState :: ThueState
+ , thueVersion :: ThueVersion }
deriving (Show, Eq)
@@ -37,15 +41,19 @@ data ThueChar = TChar { tChar :: Char }
deriving (Show, Eq)
+data ThueVersion = Ver1 | Ver2a
+ deriving (Show, Eq)
+
+
parseThue :: String -> Either ParseError ThueProgram
-parseThue = parse thue "error"
+parseThue = parse (thue Ver1) "error"
---parseThue2a :: String -> Either ParseError Thue2aProgram
---parseThue2a = parse thue2a "error"
+parseThue2a :: String -> Either ParseError ThueProgram
+parseThue2a = parse (thue Ver2a) "error"
@@ -67,48 +75,47 @@ fromThueState = map tChar
-thue = do
- rs <- many rule
+thue ver = do
+ rs <- many (rule ver)
separatorLine
- i <- initialState
+ i <- initialState ver
eof
- return (ThueProgram rs i)
+ return (ThueProgram rs i ver)
-rule = do
- o <- ruleState
+rule ver = do
+ o <- ruleState ver
separator
- r <- state
+ r <- state ver
eol
return (ThueRule o r)
-separatorLine = whiteSpace >> separator >> whiteSpace >> eol
+separatorLine = separator >> eol
separator = string "::="
<?> "rule separator"
-initialState = do
- s <- state `sepEndBy` eol
+initialState ver = do
+ s <- (state ver) `sepEndBy` eol
return (concat s)
-ruleState = some ruleStateChar
-
-
-ruleStateChar = (noneOf "\n\r:" >>= return . TChar)
- <|> try (char ':' >> notFollowedBy (string ":=") >> return (TChar ':'))
- <?> "state character"
+ruleState ver = some (ruleStateChar ver)
-state = many stateChar
+ruleStateChar ver =
+ (noneOf "\n\r:" >>= return . TChar)
+ <|> try (char ':' >> notFollowedBy (string ":=") >> return (TChar ':'))
+ <?> "state character"
-stateChar = (noneOf "\n\r" >>= return . TChar)
- <?> "state character"
+state ver = many (stateChar ver)
-whiteSpace = many (oneOf "\t ")
+stateChar ver =
+ (noneOf "\n\r" >>= return . TChar)
+ <?> "state character"
eol = try (string "\r\n")
diff --git a/src/Thue/Test.hs b/src/Thue/Test.hs
index fcd8cde..be4e38b 100644
--- a/src/Thue/Test.hs
+++ b/src/Thue/Test.hs
@@ -16,9 +16,9 @@ instance Eq Text.Parsec.Error.ParseError
-parser0 = (Right (ThueProgram [ThueRule (tStr "a") (tStr "b")] (tStr "a")) ) ~=? (parseThue "a::=b\n::=\na")
+parser0 = (Right (ThueProgram [ThueRule (tStr "a") (tStr "b")] (tStr "a") Ver1) ) ~=? (parseThue "a::=b\n::=\na")
-parser1 = (Right (ThueProgram [] (tStr "b")) ) ~=? (parseThue "::=\nb")
+parser1 = (Right (ThueProgram [] (tStr "b") Ver1) ) ~=? (parseThue "::=\nb")