WIP commit:

* Fix up project structures
* combine vars and funcs table
* make a place for old code that may be useful to reference
* singleton pattern for sym table

Commentary:
When this change is finally finished I promise to use feature branches
from here on out

legacy_snippets/initial_rough_spaghetti_implementation/stl.rs

@@ -0,0 +1,62 @@
+/* relish: versatile lisp shell
+ * Copyright (C) 2021 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 <http://www.gnu.org/licenses/>.
+ */
+
+use crate::append::get_append;
+use crate::func::{func_declare, FTable};
+use crate::segment::Ctr;
+use crate::str::{get_concat, get_echo};
+use crate::control::{get_if};
+use crate::vars::{get_export, VTable};
+use std::cell::RefCell;
+use std::rc::Rc;
+
+pub fn get_stdlib(conf: Rc<RefCell<VTable>>) -> Result<Rc<RefCell<FTable>>, String> {
+    let ft = Rc::new(RefCell::new(FTable::new()));
+    if let Some(s) = func_declare(ft.clone(), Rc::new(RefCell::new(get_echo()))) {
+        return Err(s);
+    }
+    if let Some(s) = func_declare(ft.clone(), Rc::new(RefCell::new(get_append()))) {
+        return Err(s);
+    }
+    if let Some(s) = func_declare(ft.clone(), Rc::new(RefCell::new(get_concat()))) {
+        return Err(s);
+    }
+
+    let mut cfg_env = true;
+    match conf.borrow().get(&String::from("CFG_RELISH_ENV")) {
+        None => {
+            println!("CFG_RELISH_ENV not defined. defaulting to ON.")
+        }
+        Some(ctr) => match (**ctr).clone() {
+            Ctr::String(ref s) => cfg_env = s.eq("0"),
+            _ => {
+                println!("Invalid value for CFG_RELISH_ENV. must be a string (0 or 1).");
+                println!("Defaulting CFG_RELISH_ENV to ON");
+            }
+        },
+    }
+
+    if let Some(s) = func_declare(ft.clone(), Rc::new(RefCell::new(get_export(cfg_env)))) {
+        return Err(s);
+    }
+
+    if let Some(s) = func_declare(ft.clone(), Rc::new(RefCell::new(get_if()))) {
+        return Err(s);
+    }
+
+    return Ok(ft);
+}