module Text.Highlighting.Kate.Syntax.M4
(highlight, parseExpression, syntaxName, syntaxExtensions)
where
import Text.Highlighting.Kate.Types
import Text.Highlighting.Kate.Common
import Text.ParserCombinators.Parsec hiding (State)
import Control.Monad.State
import Data.Char (isSpace)
import qualified Data.Set as Set
syntaxName :: String
syntaxName :: [Char]
syntaxName = [Char]
"GNU M4"
syntaxExtensions :: String
syntaxExtensions :: [Char]
syntaxExtensions = [Char]
"*.m4;"
highlight :: String -> [SourceLine]
highlight :: [Char] -> [SourceLine]
highlight [Char]
input = forall s a. State s a -> s -> a
evalState (forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM [Char] -> State SyntaxState SourceLine
parseSourceLine forall a b. (a -> b) -> a -> b
$ [Char] -> [[Char]]
lines [Char]
input) SyntaxState
startingState
parseSourceLine :: String -> State SyntaxState SourceLine
parseSourceLine :: [Char] -> State SyntaxState SourceLine
parseSourceLine = KateParser Token -> [Char] -> State SyntaxState SourceLine
mkParseSourceLine (Maybe ([Char], [Char]) -> KateParser Token
parseExpression forall a. Maybe a
Nothing)
parseExpression :: Maybe (String,String)
-> KateParser Token
parseExpression :: Maybe ([Char], [Char]) -> KateParser Token
parseExpression Maybe ([Char], [Char])
mbcontext = do
([Char]
lang,[Char]
cont) <- forall b a. b -> (a -> b) -> Maybe a -> b
maybe KateParser ([Char], [Char])
currentContext forall (m :: * -> *) a. Monad m => a -> m a
return Maybe ([Char], [Char])
mbcontext
Token
result <- ([Char], [Char]) -> KateParser Token
parseRules ([Char]
lang,[Char]
cont)
forall s (m :: * -> *) t u a.
Stream s m t =>
ParsecT s u m a -> ParsecT s u m ()
optional forall a b. (a -> b) -> a -> b
$ do forall s (m :: * -> *) t u.
(Stream s m t, Show t) =>
ParsecT s u m ()
eof
forall (m :: * -> *) u s. Monad m => (u -> u) -> ParsecT s u m ()
updateState forall a b. (a -> b) -> a -> b
$ \SyntaxState
st -> SyntaxState
st{ synStPrevChar :: Char
synStPrevChar = Char
'\n' }
ParsecT [Char] SyntaxState Identity ()
pEndLine
forall (m :: * -> *) a. Monad m => a -> m a
return Token
result
startingState :: SyntaxState
startingState = SyntaxState {synStContexts :: ContextStack
synStContexts = [([Char]
"GNU M4",[Char]
"Normal Text")], synStLineNumber :: Int
synStLineNumber = Int
0, synStPrevChar :: Char
synStPrevChar = Char
'\n', synStPrevNonspace :: Bool
synStPrevNonspace = Bool
False, synStContinuation :: Bool
synStContinuation = Bool
False, synStCaseSensitive :: Bool
synStCaseSensitive = Bool
True, synStKeywordCaseSensitive :: Bool
synStKeywordCaseSensitive = Bool
True, synStCaptures :: [[Char]]
synStCaptures = []}
pEndLine :: ParsecT [Char] SyntaxState Identity ()
pEndLine = do
forall (m :: * -> *) u s. Monad m => (u -> u) -> ParsecT s u m ()
updateState forall a b. (a -> b) -> a -> b
$ \SyntaxState
st -> SyntaxState
st{ synStPrevNonspace :: Bool
synStPrevNonspace = Bool
False }
([Char], [Char])
context <- KateParser ([Char], [Char])
currentContext
ContextStack
contexts <- SyntaxState -> ContextStack
synStContexts forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
`fmap` forall (m :: * -> *) s u. Monad m => ParsecT s u m u
getState
SyntaxState
st <- forall (m :: * -> *) s u. Monad m => ParsecT s u m u
getState
if forall (t :: * -> *) a. Foldable t => t a -> Int
length ContextStack
contexts forall a. Ord a => a -> a -> Bool
>= Int
2
then case ([Char], [Char])
context of
([Char], [Char])
_ | SyntaxState -> Bool
synStContinuation SyntaxState
st -> forall (m :: * -> *) u s. Monad m => (u -> u) -> ParsecT s u m ()
updateState forall a b. (a -> b) -> a -> b
$ \SyntaxState
st -> SyntaxState
st{ synStContinuation :: Bool
synStContinuation = Bool
False }
([Char]
"GNU M4",[Char]
"Normal Text") -> forall (m :: * -> *) a. Monad m => a -> m a
return ()
([Char]
"GNU M4",[Char]
"inparenthesis") -> forall (m :: * -> *) a. Monad m => a -> m a
return ()
([Char], [Char])
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return ()
else forall (m :: * -> *) a. Monad m => a -> m a
return ()
withAttribute :: a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute a
attr [Char]
txt = do
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (forall (t :: * -> *) a. Foldable t => t a -> Bool
null [Char]
txt) forall a b. (a -> b) -> a -> b
$ forall (m :: * -> *) a. MonadFail m => [Char] -> m a
fail [Char]
"Parser matched no text"
forall (m :: * -> *) u s. Monad m => (u -> u) -> ParsecT s u m ()
updateState forall a b. (a -> b) -> a -> b
$ \SyntaxState
st -> SyntaxState
st { synStPrevChar :: Char
synStPrevChar = forall a. [a] -> a
last [Char]
txt
, synStPrevNonspace :: Bool
synStPrevNonspace = SyntaxState -> Bool
synStPrevNonspace SyntaxState
st Bool -> Bool -> Bool
|| Bool -> Bool
not (forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all Char -> Bool
isSpace [Char]
txt) }
forall (m :: * -> *) a. Monad m => a -> m a
return (a
attr, [Char]
txt)
list_optbuiltins :: Set [Char]
list_optbuiltins = forall a. Ord a => [a] -> Set a
Set.fromList forall a b. (a -> b) -> a -> b
$ [Char] -> [[Char]]
words forall a b. (a -> b) -> a -> b
$ [Char]
"__gnu__ __os2__ os2 __unix__ unix __windows__ windows"
list_m4'5foptbuiltins :: Set [Char]
list_m4'5foptbuiltins = forall a. Ord a => [a] -> Set a
Set.fromList forall a b. (a -> b) -> a -> b
$ [Char] -> [[Char]]
words forall a b. (a -> b) -> a -> b
$ [Char]
"m4___gnu__ m4___os2__ m4_os2 m4___unix__ m4_unix m4___windows__ m4_windows"
list_builtins :: Set [Char]
list_builtins = forall a. Ord a => [a] -> Set a
Set.fromList forall a b. (a -> b) -> a -> b
$ [Char] -> [[Char]]
words forall a b. (a -> b) -> a -> b
$ [Char]
"__file__ __line__ __program__ builtin changecom changequote changeword debugfile debugmode decr define defn divert divnum dnl dumpdef errprint esyscmd eval format ifdef ifelse include incr index indir len m4exit m4wrap maketemp mkstemp patsubst popdef pushdef regexp shift sinclude substr syscmd sysval traceon traceoff translit undefine undivert"
list_m4'5fbuiltins :: Set [Char]
list_m4'5fbuiltins = forall a. Ord a => [a] -> Set a
Set.fromList forall a b. (a -> b) -> a -> b
$ [Char] -> [[Char]]
words forall a b. (a -> b) -> a -> b
$ [Char]
"m4___file__ m4___line__ m4___program__ m4_builtin m4_changecom m4_changequote m4_changeword m4_debugfile m4_debugmode m4_decr m4_define m4_defn m4_divert m4_divnum m4_dnl m4_dumpdef m4_errprint m4_esyscmd m4_eval m4_format m4_ifdef m4_ifelse m4_include m4_incr m4_index m4_indir m4_len m4_m4exit m4_m4wrap m4_maketemp m4_mkstemp m4_patsubst m4_popdef m4_pushdef m4_regexp m4_shift m4_sinclude m4_substr m4_syscmd m4_sysval m4_traceon m4_traceoff m4_translit m4_undefine m4_undivert"
regex_'5ba'2dzA'2dZ'5f'5d'5cw'2b :: Regex
regex_'5ba'2dzA'2dZ'5f'5d'5cw'2b = Bool -> [Char] -> Regex
compileRegex Bool
True [Char]
"[a-zA-Z_]\\w+"
regex_'5c'24'28'5b1'2d9'5d'5cd'2a'7c0'7c'5c'23'7c'5c'2a'7c'5c'40'7c'5c'7b'28'5b1'2d9'5d'5cd'2a'7c0'29'5c'7d'29 :: Regex
regex_'5c'24'28'5b1'2d9'5d'5cd'2a'7c0'7c'5c'23'7c'5c'2a'7c'5c'40'7c'5c'7b'28'5b1'2d9'5d'5cd'2a'7c0'29'5c'7d'29 = Bool -> [Char] -> Regex
compileRegex Bool
True [Char]
"\\$([1-9]\\d*|0|\\#|\\*|\\@|\\{([1-9]\\d*|0)\\})"
regex_'28'5b1'2d9'5d'5cd'2a'7c0'7c0x'5b0'2d9abcdefABCDEF'5d'2b'29 :: Regex
regex_'28'5b1'2d9'5d'5cd'2a'7c0'7c0x'5b0'2d9abcdefABCDEF'5d'2b'29 = Bool -> [Char] -> Regex
compileRegex Bool
True [Char]
"([1-9]\\d*|0|0x[0-9abcdefABCDEF]+)"
regex_'23'2e'2a'24 :: Regex
regex_'23'2e'2a'24 = Bool -> [Char] -> Regex
compileRegex Bool
True [Char]
"#.*$"
regex_'5b'2b'2a'2f'25'5c'7c'3d'5c'21'3c'3e'21'5e'26'7e'2d'5d :: Regex
regex_'5b'2b'2a'2f'25'5c'7c'3d'5c'21'3c'3e'21'5e'26'7e'2d'5d = Bool -> [Char] -> Regex
compileRegex Bool
True [Char]
"[+*/%\\|=\\!<>!^&~-]"
parseRules :: ([Char], [Char]) -> KateParser Token
parseRules ([Char]
"GNU M4",[Char]
"Normal Text") =
((([Char] -> Set [Char] -> KateParser [Char]
pKeyword [Char]
" \n\t.():!+,-<=>%&*/;?[]^{|}~\\" Set [Char]
list_builtins forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
KeywordTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
(([Char] -> Set [Char] -> KateParser [Char]
pKeyword [Char]
" \n\t.():!+,-<=>%&*/;?[]^{|}~\\" Set [Char]
list_m4'5fbuiltins forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
KeywordTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
(([Char] -> Set [Char] -> KateParser [Char]
pKeyword [Char]
" \n\t.():!+,-<=>%&*/;?[]^{|}~\\" Set [Char]
list_optbuiltins forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
KeywordTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
(([Char] -> Set [Char] -> KateParser [Char]
pKeyword [Char]
" \n\t.():!+,-<=>%&*/;?[]^{|}~\\" Set [Char]
list_m4'5foptbuiltins forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
KeywordTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
((Regex -> KateParser [Char]
pRegExpr Regex
regex_'5ba'2dzA'2dZ'5f'5d'5cw'2b forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
NormalTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
((Regex -> KateParser [Char]
pRegExpr Regex
regex_'5c'24'28'5b1'2d9'5d'5cd'2a'7c0'7c'5c'23'7c'5c'2a'7c'5c'40'7c'5c'7b'28'5b1'2d9'5d'5cd'2a'7c0'29'5c'7d'29 forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
CharTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
((Regex -> KateParser [Char]
pRegExpr Regex
regex_'28'5b1'2d9'5d'5cd'2a'7c0'7c0x'5b0'2d9abcdefABCDEF'5d'2b'29 forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
DecValTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
((Regex -> KateParser [Char]
pRegExpr Regex
regex_'23'2e'2a'24 forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
CommentTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
((Bool -> Char -> KateParser [Char]
pDetectChar Bool
False Char
',' forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
CharTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
((Bool -> Char -> KateParser [Char]
pDetectChar Bool
False Char
'(' forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
CharTok) forall (m :: * -> *) a b. Monad m => m a -> m b -> m a
>>~ ([Char], [Char]) -> ParsecT [Char] SyntaxState Identity ()
pushContext ([Char]
"GNU M4",[Char]
"inparenthesis"))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
((Bool -> Char -> KateParser [Char]
pDetectChar Bool
False Char
')' forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
CharTok) forall (m :: * -> *) a b. Monad m => m a -> m b -> m a
>>~ (ParsecT [Char] SyntaxState Identity ()
popContext))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
((Regex -> KateParser [Char]
pRegExpr Regex
regex_'5b'2b'2a'2f'25'5c'7c'3d'5c'21'3c'3e'21'5e'26'7e'2d'5d forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
CharTok))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
(KateParser ([Char], [Char])
currentContext forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= \([Char], [Char])
x -> forall (f :: * -> *). Alternative f => Bool -> f ()
guard (([Char], [Char])
x forall a. Eq a => a -> a -> Bool
== ([Char]
"GNU M4",[Char]
"Normal Text")) forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> KateParser [Char]
pDefault forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
NormalTok))
parseRules ([Char]
"GNU M4",[Char]
"inparenthesis") =
(((([Char], [Char]) -> KateParser Token
parseRules ([Char]
"GNU M4",[Char]
"Normal Text")))
forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|>
(KateParser ([Char], [Char])
currentContext forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= \([Char], [Char])
x -> forall (f :: * -> *). Alternative f => Bool -> f ()
guard (([Char], [Char])
x forall a. Eq a => a -> a -> Bool
== ([Char]
"GNU M4",[Char]
"inparenthesis")) forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> KateParser [Char]
pDefault forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall {m :: * -> *} {a} {s}.
Monad m =>
a -> [Char] -> ParsecT s SyntaxState m (a, [Char])
withAttribute TokenType
NormalTok))
parseRules ([Char], [Char])
x = ([Char], [Char]) -> KateParser Token
parseRules ([Char]
"GNU M4",[Char]
"Normal Text") forall s u (m :: * -> *) a.
ParsecT s u m a -> ParsecT s u m a -> ParsecT s u m a
<|> forall (m :: * -> *) a. MonadFail m => [Char] -> m a
fail ([Char]
"Unknown context" forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> [Char]
show ([Char], [Char])
x)