I am thinking of writing a parser/interpreter/compiler for a functional language implementing the Industry Standard of Forced Indentation of Code, this is what a sixliner in Haskell looks like:[see below], pretty neat, eh?
if
and
map
y .
==
mod
x
y
0
filter
x .
/=
mod
20
x
0
1 .. 20
x
asd
+
x
20
Name:
Anonymous2007-04-29 17:30 ID:AaEmppll
doesnt run you stupid fuck ONE WORDE
TEH FORCEDE INDENTATIONS OF CODE
THREAD OVAR
Name:
Anonymous2007-04-29 17:55 ID:mkdrvOsy
>>2
Please, calm down. The fact that it does not run (what did you expect, that it would jump at you through the Internet?) is easily explained by the fact that I have as of yet not even finished the formal grammar of the language (although I am on my way). Do not become weak of heart though! I will possibly finish this project unless I lose interest.
Name:
Anonymous2007-04-29 18:10 ID:AaEmppll
>>3 IM SRSLY [u]PISSED[/u] OFF I PUT IT IN GHCI AND GHC AND IT DIDNT WORK!!!!!!!
ONE ROD, THE FORCED INSERTION INTO YOUR ANUS. MEME OVER.
Name:
Anonymous2007-04-29 18:16 ID:MP2cpZfn
One word, AaEmppll, thread over.
Name:
Anonymous2007-04-30 13:26 ID:qFB9wrCy
>>3 Please, calm down. The fact that it does not run (what did you expect, that it would jump at you through the Internet?) is easily explained by the fact that I have as of yet not even finished the formal grammar of the language (although I am on my way). Do not become weak of heart though! I will possibly finish this project unless I lose interest.
Name:
Anonymous2007-04-30 14:40 ID:e5f0BkSx
Parsing the indented code into a tree was quite easy, a mere ten lines of Haskell was all that was needed. A little more code will be needed to handle silly things like multiple roots and blank lines. That reminds me, I must not implement comments in this language. *Language.Forced.Parser> main
if
|
+- and
| |
| `- map
| |
| +- y .
| | |
| | `- ==
| | |
| | +- mod
| | | |
| | | +- x
| | | |
| | | `- y
| | |
| | `- 0
| |
| `- filter
| |
| +- x .
| | |
| | `- /=
| | |
| | +- mod
| | | |
| | | +- 20
| | | |
| | | `- x
| | |
| | `- 0
| |
| `- 1 .. 20
|
+- x
|
`- asd
|
`- +
|
+- x
|
`- 20
>>9
I just finished a simple evaluator as well -- next is ... lambdas perhaps, that'll probably be hard though. data Expression = Value Int
| Invocation String [Expression]
parseTree :: [String] -> Tree String
parseTree (x:xs) =
Node x (map parseTree (findSubTrees (removeIndentation xs)))
invoke :: String -> [Int] -> Int
invoke fn xs =
case lookup fn intrinsics of
Nothing -> error "No such intrinsic."
Just f -> f xs
evaluate (Value n) = n
evaluate (Invocation f xs) = invoke f (map evaluate xs)
main = readFile "test2.forced" >>= return . evaluate . interpret . parse
This is all it can do so far (I think it supports any indentation as long as it is the same on the same level): +
+
+
3
4
5
6
Filename void f2 const string data int start int end.
Name:
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