HCoop / jackhill / mal.git / blame
| Commit | Line | Data |
|---|---|---|
| 118269ab VS |
1 | (de load-relative (Path) |
| 2 | (load (pack (car (file)) Path)) ) | |
| 3 | ||
| 4 | (load-relative "readline.l") | |
| 5 | (load-relative "types.l") | |
| 6 | (load-relative "reader.l") | |
| 7 | (load-relative "printer.l") | |
| 8 | (load-relative "env.l") | |
| 9 | (load-relative "func.l") | |
| 10 | (load-relative "core.l") | |
| 11 | ||
| 12 | (de READ (String) | |
| 13 | (read-str String) ) | |
| 14 | ||
| 0e9990bc VS |
15 | (def '*ReplEnv (MAL-env NIL)) |
| 16 | (for Bind *Ns (set> *ReplEnv (car Bind) (cdr Bind))) | |
| 118269ab VS |
17 | |
| 18 | (de EVAL (Ast Env) | |
| 19 | (if (= (MAL-type Ast) 'list) | |
| 20 | (if (not (MAL-value Ast)) | |
| 21 | Ast | |
| 22 | (let (Ast* (MAL-value Ast) | |
| 23 | A0* (MAL-value (car Ast*)) | |
| 24 | A1 (cadr Ast*) | |
| 25 | A1* (MAL-value A1) | |
| 26 | A2 (caddr Ast*) | |
| 27 | A3 (cadddr Ast*) ) | |
| 28 | (cond | |
| 29 | ((= A0* 'def!) | |
| 30 | (set> Env A1* (EVAL A2 Env)) ) | |
| 31 | ((= A0* 'let*) | |
| 32 | (let Env* (MAL-env Env) | |
| 33 | (for (Bindings A1* Bindings) | |
| 34 | (let (Key (MAL-value (pop 'Bindings)) | |
| 35 | Value (EVAL (pop 'Bindings) Env*)) | |
| 36 | (set> Env* Key Value) ) ) | |
| 37 | (EVAL A2 Env*) ) ) | |
| 38 | ((= A0* 'do) | |
| 39 | (for Form (cdr Ast*) | |
| 40 | (EVAL Form Env) ) ) | |
| 41 | ((= A0* 'if) | |
| 42 | (if (not (memq (MAL-type (EVAL A1 Env)) '(nil false))) | |
| 43 | (EVAL A2 Env) | |
| 44 | (if A3 | |
| 45 | (EVAL A3 Env) | |
| 46 | *MAL-nil ) ) ) | |
| 47 | ((= A0* 'fn*) | |
| 48 | (let (Binds (mapcar MAL-value A1*) | |
| 49 | Body A2) | |
| 50 | (MAL-fn | |
| 51 | (curry (Env Binds Body) @ | |
| 52 | (let Env* (MAL-env Env Binds (rest)) | |
| 53 | (EVAL Body Env*) ) ) ) ) ) | |
| 54 | (T | |
| 55 | (let (Ast* (MAL-value (eval-ast Ast Env)) | |
| 56 | Fn (MAL-value (car Ast*)) | |
| 57 | Args (cdr Ast*)) | |
| 58 | (apply Fn Args) ) ) ) ) ) | |
| 59 | (eval-ast Ast Env) ) ) | |
| 60 | ||
| 61 | (de eval-ast (Ast Env) | |
| 62 | (let Value (MAL-value Ast) | |
| 63 | (case (MAL-type Ast) | |
| 64 | (symbol (get> Env Value)) | |
| 65 | (list (MAL-list (mapcar '((Form) (EVAL Form Env)) Value))) | |
| 66 | (vector (MAL-vector (mapcar '((Form) (EVAL Form Env)) Value))) | |
| 67 | (map (MAL-map (mapcar '((Form) (EVAL Form Env)) Value))) | |
| 68 | (T Ast) ) ) ) | |
| 69 | ||
| 70 | (de PRINT (Ast) | |
| 71 | (pr-str Ast T) ) | |
| 72 | ||
| 872ae9c4 VS |
73 | (de rep (String) |
| 74 | (PRINT (EVAL (READ String) *ReplEnv)) ) | |
| 118269ab | 75 | |
| 872ae9c4 | 76 | (rep "(def! not (fn* (a) (if a false true)))") |
| 118269ab VS |
77 | |
| 78 | (load-history ".mal_history") | |
| 79 | ||
| 80 | (use Input | |
| 81 | (until (=0 (setq Input (readline "user> "))) | |
| 872ae9c4 | 82 | (let Output (catch 'err (rep Input)) |
| 118269ab VS |
83 | (if (isa '+MALError Output) |
| 84 | (let Message (MAL-value Output) | |
| 1809f9ba VS |
85 | (unless (= (MAL-value Message) "end of token stream") |
| 86 | (prinl "[error] " (pr-str Message)) ) ) | |
| 118269ab VS |
87 | (prinl Output) ) ) ) ) |
| 88 | ||
| 89 | (prinl) | |
| 90 | (bye) |