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[cc1516.git] / src / main.icl

diff --git a/src/main.icl b/src/main.icl
index 4739c35..31c98d7 100644 (file)
--- a/src/main.icl
+++ b/src/main.icl
@@ -4,54 +4,92 @@ import StdFile
 import StdBool
 import StdMisc
 import StdFunc
+import StdTuple
 import StdList
 import StdString
 import Data.Either
 import Data.Maybe
+import Data.Func
 import System.CommandLine
+import GenPrint
+from Text import class Text(concat), instance Text String
 
 import parse
 import lex
+from yard import :: Error, instance toString Error
 
 :: Opts = {
+       version :: Bool,
        program :: String,
        lex :: Bool,
        parse :: Bool,
        fp :: Maybe String,
        help :: Bool}
 
-:: *StartType :== (LexerOutput, ParserOutput, *World)
+derive gPrint TokenValue
 
-parseArgs :: *World -> (Opts, *World)
-parseArgs w
-# ([p:args], w) = getCommandLine w
-= (pa args {program=p, lex=False, parse=False, fp=Nothing, help=False}, w)
-where
-       pa :: [String] -> (Opts -> Opts)
-       pa [] = id
-       pa ["--help":r] = \o.pa r {o & help=True}
-       pa ["--lex":r] = \o.pa r {o & lex=True, parse=False}
-       pa ["--parse":r] = \o.pa r {o & lex=False, parse=True}
-       pa [x:r] = \o.pa r {o & fp=Just x}
-
-//Start :: *World -> (LexerOutput, ParserOutput, *World)
-//Start w
-//# (args, w) = getCommandLine w
-//# (toparse, out) = readEntireFile out
-//= (lexer toparse, parse (lexer toparse), w)
-
-Start :: *World -> *StartType
+Start :: *World -> *World
 Start w
 # (args, w) = parseArgs w
-| args.help = help args.program w
 # (stdin, w) = stdio w
+| args.version
+       # stdin = stdin 
+               <<< "main 0.1 (17 march 2016)\n"
+               <<< "Copyright Pim Jager and Mart Lubbers\n"
+       = snd $ fclose stdin w
+| args.help
+       # stdin = stdin 
+               <<< "Usage: " <<< args.program <<< " [OPTION] [FILE]\n"
+               <<< "Lex parse and either FILE or stdin\n"
+               <<< "\n"
+               <<< "Options:\n"
+               <<< "  --help             Show this help\n"
+               <<< "  --version          Show the version\n"
+               <<< "  --[no-]lex         Lexer output(default: disabled)\n"
+               <<< "  --[no-]parse       Parser output(default: enabled)\n"
+       = snd $ fclose stdin w
 # (contents, stdin, w) = readFileOrStdin stdin args.fp w
-| args.lex = case contents of
-       (Right cs) = (lexer cs, Left "Parsing Disabled", w)
-       (Left e) = (Left e, Left "Parsing disabled", w)
 = case contents of
-       (Left e) = (Left e, Left "", w)
-       (Right cs) = let lexOut = lexer cs in (lexOut, parser lexOut, w)
+       (Left cs) = snd $ fclose (stdin <<< cs) w
+       (Right cs)
+       # lexOut = lexer cs
+       # stdin = if (not args.lex) stdin (case lexOut of
+               (Right toks) = 
+                       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" 
+               (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"]
+
+parseArgs :: *World -> (Opts, *World)
+parseArgs w
+# ([p:args], w) = getCommandLine w
+= (pa args {
+       program=p,
+       version=False,
+       lex=False,
+       parse=True,
+       fp=Nothing,
+       help=False}, w)
+where
+       pa :: [String] Opts -> Opts
+       pa [] o = o
+       pa ["--help":r] o = pa r {o & help=True}
+       pa ["--version":r] o = pa r {o & version=True}
+       pa ["--lex":r] o = pa r {o & lex=True}
+       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 [x:r] o = pa r {o & fp=Just x}
 
 readFileOrStdin :: *File (Maybe String) *World -> *(Either String [Char], *File, *World)
 readFileOrStdin stdin Nothing w
@@ -61,7 +99,8 @@ readFileOrStdin stdin (Just fp) w
 # (b, fin, w) = fopen fp FReadText w
 | not b = (Left "Unable to open file", stdin, w)
 # (cs,         fin) = readEntireFile fin
-# (_, w) = fclose fin w
+# (b, w) = fclose fin w
+| not b = (Left "Unable to close file", stdin, w)
 = (Right cs, stdin, w)
 
 readEntireFile :: *File -> *([Char], *File)
@@ -70,15 +109,3 @@ readEntireFile f
 | not b = ([], f)
 # (cs, f) = readEntireFile f
 = ([c:cs], f)
-
-help :: String *World -> *StartType
-help p w
-# (out, w) = stdio w
-# out = out <<< "\nUsage: " <<< p <<< " [opts] [FILENAME]\n"
-       <<< "\t--help  Show this help\n"
-       <<< "\t--lex   Lex only, is mutually exclusive with --parse\n"
-       <<< "\t--parse Lex & Parse only\n\n"
-       <<< "\tFILENAME   File to parse, when unspecified stdin is parsed\n"
-# (_, w) = fclose out w
-= (Left "", Left "", w)
-