spl.icl

   1 module spl
   2
   3 import StdFile
   4 import StdBool
   5 import StdMisc
   6 import StdFunc
   7 import StdTuple
   8 import StdList
   9 import StdString
  10 import Data.Either
  11 import Data.Maybe
  12 import Data.Func
  13 import System.CommandLine
  14 import GenPrint
  15 import Data.Map
  16 from Text import class Text(concat,join), instance Text String
  17
  18 import parse
  19 import lex
  20 import sem
  21 import AST
  22 import gen
  23 from yard import :: Error, instance toString Error
  24
  25 :: Opts = {
  26         version :: Bool,
  27         program :: String,
  28         lex :: Bool,
  29         parse :: Bool,
  30         sem :: Bool,
  31     gen :: Bool,
  32         fp :: Maybe String,
  33         help :: Bool}
  34
  35 derive gPrint TokenValue
  36
  37 Start :: *World -> *World
  38 Start w
  39 # (args, w) = parseArgs w
  40 # (stdin, w) = stdio w
  41 | args.version
  42         # stdin = stdin
  43                 <<< "spl 0.1 (17 march 2016)\n"
  44                 <<< "Copyright Pim Jager and Mart Lubbers\n"
  45         = snd $ fclose stdin w
  46 | args.help
  47         # stdin = stdin
  48                 <<< "Usage: " <<< args.program <<< " [OPTION] [FILE]\n"
  49                 <<< "<spl> ::= <spl> <parser> <lexer>\n"
  50                 <<< "Lex parse and either FILE or stdin\n"
  51                 <<< "\n"
  52                 <<< "Options:\n"
  53                 <<< "  --help             Show this help\n"
  54                 <<< "  --version          Show the version\n"
  55                 <<< "  --[no-]lex         Lexer output(default: disabled)\n"
  56                 <<< "  --[no-]parse       Parser output(default: disabled)\n"
  57                 <<< "  --[no-]sem         Semantic analysis output(default: enabled)\n"
  58         = snd $ fclose stdin w
  59 # (contents, stdin, w) = readFileOrStdin stdin args.fp w
  60 = case contents of
  61         (Left cs) = snd $ fclose (stdin <<< cs) w
  62         (Right cs) = case lexer cs of
  63                 (Left e) = snd $ fclose (stdin <<< toString e <<< "\n") w
  64                 (Right lexOut)
  65                 # stdin = if (not args.lex) stdin (
  66                         stdin <<< "//LEXER\n" <<< printTokens lexOut <<< "//LEXER\n")
  67                 = case parser lexOut of
  68                         (Left e) = snd $ fclose (stdin <<< toString e <<< "\n") w
  69                         (Right parseOut)
  70                         # stdin = if (not args.parse) stdin (
  71                                 stdin <<<  "//PARSER\n" <<< toString parseOut <<< "//PARSER\n")
  72                         = case sem parseOut of
  73                                 (Left e) = snd $ fclose (stdin <<< join "\n" (map toString e) <<< "\n") w
  74                                 (Right ast)
  75                                 # stdin = if (not args.sem) stdin (stdin
  76                                         <<< "//SEM G\n" <<< toString ast <<< "//SEMA\n")
  77                 # stdin = if (not args.gen) stdin (stdin
  78                     <<< "//CODE GEN\n" <<< gen ast <<< "\n//CODE GEN\n")
  79                                 = snd $ fclose (stdin <<< "\n") w
  80                 where
  81                         printConstraints :: Constraints -> String
  82                         printConstraints [] = ""
  83                         printConstraints [(t1, t2):ts] = concat [
  84                                 "(", toString t1, ",", toString t2, ")"] +++ printConstraints ts
  85
  86                         printTokens :: [Token] -> String
  87                         printTokens ts = concat $ flatten $ map pt ts
  88                                 where
  89                                 pt ({line,col},token) = [toString line, ":",
  90                                                 toString col, ": ", printToString token, "\n"]
  91
  92 parseArgs :: *World -> (Opts, *World)
  93 parseArgs w
  94 # ([p:args], w) = getCommandLine w
  95 = (pa args {
  96         program=p,
  97         version=False,
  98         lex=False,
  99         parse=False,
 100         sem=True,
 101     gen=True,
 102         fp=Nothing,
 103         help=False}, w)
 104 where
 105         pa :: [String] Opts -> Opts
 106         pa [] o = o
 107         pa ["--help":r] o = pa r {o & help=True}
 108         pa ["--version":r] o = pa r {o & version=True}
 109         pa ["--lex":r] o = pa r {o & lex=True}
 110         pa ["--no-lex":r] o = pa r {o & lex=False}
 111         pa ["--parse":r] o = pa r {o & parse=True}
 112         pa ["--no-parse":r] o = pa r {o & parse=False}
 113         pa ["--sem":r] o = pa r {o & sem=True}
 114         pa ["--no-sem":r] o = pa r {o & sem=False}
 115     pa ["--gen":r] o = pa r {o & gen=True}
 116     pa ["--no-gen":r] o = pa r {o & gen=False}
 117         pa [x:r] o = pa r {o & fp=Just x}
 118
 119 readFileOrStdin :: *File (Maybe String) *World -> *(Either String [Char], *File, *World)
 120 readFileOrStdin stdin Nothing w
 121 # (cs, stdin) = readEntireFile stdin
 122 = (Right cs, stdin, w)
 123 readFileOrStdin stdin (Just fp) w
 124 # (b, fin, w) = fopen fp FReadText w
 125 | not b = (Left "Unable to open file", stdin, w)
 126 # (cs,  fin) = readEntireFile fin
 127 # (b, w) = fclose fin w
 128 | not b = (Left "Unable to close file", stdin, w)
 129 = (Right cs, stdin, w)
 130
 131 readEntireFile :: *File -> *([Char], *File)
 132 readEntireFile f
 133 # (b, c, f) = freadc f
 134 | not b = ([], f)
 135 # (cs, f) = readEntireFile f
 136 = ([c:cs], f)