import parse
import lex
+import AST
from yard import :: Error, instance toString Error
:: Opts = {
program :: String,
lex :: Bool,
parse :: Bool,
+ selftest :: Bool,
fp :: Maybe String,
help :: Bool}
<<< " --version Show the version\n"
<<< " --[no-]lex Lexer output(default: disabled)\n"
<<< " --[no-]parse Parser output(default: enabled)\n"
+ <<< " --[no-]selftest Feed pprint parse back(default: disabled)\n"
= snd $ fclose stdin w
# (contents, stdin, w) = readFileOrStdin stdin args.fp w
= case contents of
# lexOut = lexer cs
# stdin = if (not args.lex) stdin (case lexOut of
(Right toks) =
- stdin <<< "---LEXER\n" <<< printTokens toks <<< "---LEXER\n"
+ stdin <<< "//LEXER\n" <<< printTokens toks <<< "//LEXER\n"
_ = stdin)
# parseOut = parser lexOut
# stdin = if (not args.parse) stdin (case parser lexOut of
(Right ast) =
- stdin <<< "---PARSER\n" <<< toString ast <<< "---PARSER\n"
+ stdin <<< "//PARSER\n" <<< toString ast <<< "//PARSER\n"
(Left parse) = stdin <<< toString parse)
= snd $ fclose stdin w
where
printTokens :: [Token] -> String
printTokens ts = concat $ flatten $ map pt ts
where
- pt {line,column,token} = [toString line, ":",
- toString column, ": ", printToString token, "\n"]
+ pt ({line,col},token) = [toString line, ":",
+ toString col, ": ", printToString token, "\n"]
parseArgs :: *World -> (Opts, *World)
parseArgs w
version=False,
lex=False,
parse=True,
+ selftest=False,
fp=Nothing,
help=False}, w)
where
pa ["--no-lex":r] o = pa r {o & lex=False}
pa ["--parse":r] o = pa r {o & parse=True}
pa ["--no-parse":r] o = pa r {o & parse=False}
+ pa ["--selftest":r] o = pa r {o & selftest=True}
+ pa ["--no-selftest":r] o = pa r {o & selftest=False}
pa [x:r] o = pa r {o & fp=Just x}
readFileOrStdin :: *File (Maybe String) *World -> *(Either String [Char], *File, *World)