refactored ast tables, added eval method

stdlib/func_table.go

@@ -1,75 +0,0 @@
-/*   SHS: Syntactically Homogeneous Shell
- *   Copyright (C) 2019  Aidan Hahn
- *
- *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package stdlib
-
-import (
-    "git.callpipe.com/aidan/shs/ast"
-)
-
-type Operation func(*ast.Token) *ast.Token
-
-type Function struct {
-    function Operation
-    timesCalled int
-    args   int
-}
-
-type FuncTable map[string]*Function
-
-var (
-    GlobalFuncTable *FuncTable
-)
-
-// TODO: Currently only checks arg list length
-func ParseFunction(target *Function, args *ast.Token) bool {
-    // HANDLE EXEC
-    if target.args < 0 {
-        return true
-    }
-
-    i := target.args
-    for iter := &args; *iter != nil; iter = &((*iter).next) {
-        i -= 1
-    }
-
-    if i != 0 {
-        // log error here?
-        return false
-    }
-
-    return true
-}
-
-func CallFunction(target *Function, args *ast.Token) *ast.Token {
-    if !ParseFunction(target, args) {
-        return args
-    }
-
-    target.timesCalled += 1
-    return target.function(args)
-}
-
-func GetFunction(arg string) *Function {
-    target, ok := (*GlobalFuncTable)[arg]
-    if !ok {
-        // TODO: hook into stdlib exec call
-        ;
-    }
-
-    return target
-}