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repl now complete

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Signed-off-by: Ava Hahn <ava@aidanis.online>
This commit is contained in:
Ava Hahn 2023-03-01 11:14:42 -08:00
parent fbb85f2e3d
commit 2439a37aaa
Signed by untrusted user who does not match committer: affine
GPG key ID: 3A4645B8CF806069
9 changed files with 188 additions and 123 deletions
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54
Readme.org
View file

@ -101,16 +101,16 @@ This contains any executable target of this project. Notably the main shell file
* Current Status / TODO list
Note: this section will not show the status of each item unless you are viewing it with a proper orgmode viewer
*** TODO Rudimentary Control Flow
**** TODO if clause
**** DONE if clause
**** TODO loop clause
**** TODO while clause
**** TODO circuit clause
*** TODO Configuration
**** TODO get_stdlibphase1 -> configuration -> get_stdlibphase2
**** TODO Function to load configuration into Variable and Function tables
**** TODO Configure in main shell
**** TODO manual verification of config settings
**** TODO manual verification of config defaults
**** DONE get_stdlibphase1 -> configuration -> get_stdlibphase2
**** DONE Function to load configuration into Variable and Function tables
**** DONE Configure in main shell
**** DONE manual verification of config settings
**** DONE manual verification of config defaults
*** TODO Help function
*** TODO Env function
*** TODO User variable declaration tests
@ -122,26 +122,30 @@ Will need a concatenate function for func tables
*** TODO Main shell calls Load function on arg and exits
*** TODO Custom error printing
*** TODO Custom ast pretty print
*** TODO STDLIB
*** TODO Shell module
**** TODO Process launching with environment variables
**** TODO Foreground process TTY
**** TODO Background processes
**** TODO append
**** TODO string operations
***** TODO concatenate
***** TODO substr by index
***** TODO tokenize by delimiter
***** TODO sprintf / string build
**** TODO arithmetic operations
***** TODO
**** TODO Serialize/Deserialize basic data types
**** TODO file opterations
***** TODO
**** TODO Network library
***** TODO HTTP Client
***** TODO TCP Stream client
***** TODO UDP Client
***** TODO TCP Listener
***** TODO HTTP Listener
***** TODO UDP Listener
**** DONE append
*** TODO string operations
**** TODO concatenate
**** TODO substr by index
**** TODO tokenize by delimiter
**** TODO sprintf / string build
*** TODO arithmetic operations
**** TODO add
**** TODO sub
**** TODO div
**** TODO mul
**** TODO exp
**** TODO mod
*** TODO file operations
**** TODO read-to-string
**** TODO write-to-file
*** TODO Network library
**** TODO HTTP Client
**** TODO TCP Stream client
**** TODO UDP Client
**** TODO TCP Listener
**** TODO HTTP Listener
**** TODO UDP Listener

90
src/bin/main.rs Normal file
View file

@ -0,0 +1,90 @@
/* 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 dirs::home_dir;
use relish::ast::{eval, lex, Ctr, Seg, SymTable};
use relish::stdlib::{static_stdlib, dynamic_stdlib};
use relish::aux::configure;
use rustyline::error::ReadlineError;
use rustyline::Editor;
use std::env;
fn main() {
let mut rl = Editor::<()>::new();
const HIST_FILE: &str = "/.relish_hist";
const CONFIG_FILE_DEFAULT: &str = "/.relishrc";
let home_dir = home_dir().unwrap().to_str().unwrap().to_owned();
let hist_file_name = home_dir.clone() + HIST_FILE;
let cfg_file_name = home_dir + CONFIG_FILE_DEFAULT;
if !hist_file_name.is_empty() {
rl.load_history(&hist_file_name)
.unwrap_or_else(|err: ReadlineError| eprintln!("{}", err));
}
let mut syms = SymTable::new();
static_stdlib(&mut syms)
.unwrap_or_else(|err: String| eprintln!("{}", err));
dynamic_stdlib(&mut syms)
.unwrap_or_else(|err: String| eprintln!("{}", err));
{ // scope the below borrow of syms
let cfg_file = env::var("RELISH_CFG_FILE").unwrap_or(cfg_file_name);
configure(
cfg_file.clone(),
&mut syms,
).unwrap_or_else(|err: String| eprintln!("failed to load script {}\n{}",
cfg_file, err));
}
dynamic_stdlib(&mut syms)
.unwrap_or_else(|err: String| eprintln!("{}", err));
loop {
let s = *syms.call_symbol(&"CFG_RELISH_PROMPT".to_string(), &Seg::new(), true)
.unwrap_or_else(|err: String| {
eprintln!("{}", err);
Box::new(Ctr::String("<prompt broken!>".to_string()))
});
let readline_prompt = s.to_string();
let user_doc = rl.readline(&readline_prompt);
match user_doc {
Ok(line) => {
rl.add_history_entry(line.as_str());
let l = line.as_str().to_owned();
match lex(&l) {
Ok(a) => match eval(&a, &mut syms) {
Ok(a) => println!("{}", a),
Err(s) => println!("{}", s),
},
Err(s) => println!("{}", s),
}
}
Err(ReadlineError::Interrupted) => break,
Err(ReadlineError::Eof) => return,
Err(err) => {
eprintln!("Prompt error: {:?}", err);
break;
}
}
}
if !hist_file_name.is_empty() {
rl.save_history(&hist_file_name).unwrap();
}
}

94
src/config.rs
View file

@ -16,78 +16,44 @@
*/
use crate::eval::eval;
use crate::func::{func_declare, Args, FTable, Function, Operation};
use crate::lex::lex;
use crate::segment::{Ast, Ctr};
use crate::stl::get_stdlib;
use crate::vars::{define, VTable};
use std::cell::RefCell;
use crate::segment::{Seg, Ctr};
use crate::sym::{SymTable, ValueType, Args, Symbol};
use std::fs;
use std::io::{self, Write};
use std::io;
use std::rc::Rc;
fn prompt_default_callback(_: Ast, _: Rc<RefCell<VTable>>, _: Rc<RefCell<FTable>>) -> Ctr {
return Ctr::String("λ ".to_string());
fn prompt_default_callback(_: &Seg, _: &mut SymTable) -> Result<Ctr, String> {
Ok(Ctr::String("λ ".to_string()))
}
pub fn configure(filename: String, vars: Rc<RefCell<VTable>>) -> Result<Rc<RefCell<FTable>>, String> {
let funcs;
/* loads defaults, evaluates config script */
pub fn configure(filename: String, syms: &mut SymTable) -> Result<(), String> {
syms.insert("CFG_RELISH_POSIX".to_string(), Symbol {
name: String::from("CFG_RELISH_POSIX"),
args: Args::None,
conditional_branches: false,
value: ValueType::VarForm(Box::new(Ctr::String("0".to_string()))),
});
define(
vars.clone(),
String::from("CFG_RELISH_POSIX"),
Rc::new(Ctr::String(String::from("0"))),
);
define(
vars.clone(),
String::from("CFG_RELISH_ENV"),
Rc::new(Ctr::String(String::from("1"))),
);
syms.insert("CFG_RELISH_ENV".to_string(), Symbol {
name: String::from("CFG_RELISH_ENV"),
args: Args::None,
conditional_branches: false,
value: ValueType::VarForm(Box::new(Ctr::String("1".to_string()))),
});
match get_stdlib(vars.clone()) {
Ok(f) => funcs = f,
Err(s) => {
funcs = Rc::new(RefCell::new(FTable::new()));
println!("Couldnt get stdlib: {}", s)
},
}
syms.insert("CFG_RELISH_PROMPT".to_string(), Symbol {
name: String::from("default relish prompt"),
args: Args::None,
conditional_branches: false,
value: ValueType::Internal(Rc::new(prompt_default_callback)),
});
match func_declare(
funcs.clone(),
Rc::new(RefCell::new(Function {
name: String::from("CFG_RELISH_PROMPT"),
loose_syms: false,
eval_lazy: false,
args: Args::Lazy(0),
function: Operation::Internal(Box::new(prompt_default_callback)),
})),
) {
Some(e) => return Err(e),
None => {},
}
let config_document = fs::read_to_string(filename).unwrap_or_else(|err: io::Error| err.to_string());
let config_tree = lex(&config_document)?;
let config_result = eval(&config_tree, syms)?;
match fs::read_to_string(filename.clone()) {
Err(s) => {
return Err(format!("Couldnt open configuration file: {}", s));
}
Ok(raw_config) => {
let mut l = raw_config;
l = "(".to_owned() + &l + ")";
match lex(l) {
Err(s) => {
return Err(format!("Error in configuration: {}", s));
}
Ok(config) => {
if let Err(errst) = eval(config, vars, funcs.clone(), false) {
return Err(format!("Error loading {}: {}", filename.clone(), errst));
}
}
}
},
}
return Ok(funcs);
println!("config result: {config_result}");
Ok(())
}

4
src/lex.rs
View file

@ -200,8 +200,7 @@ fn process(document: &String) -> Result<Box<Seg>, String> {
if is_str {
Err(UNMATCHED_STR_DELIM.to_string())
} else {
if ref_stack.is_empty() {
} else if ref_stack.is_empty() {
let obj;
if token == "true" {
obj = Box::from(Ctr::Bool(true));
@ -221,7 +220,6 @@ fn process(document: &String) -> Result<Box<Seg>, String> {
Err(UNMATCHED_LIST_DELIM.to_string())
}
}
}
/* Returns true if token
* - is all alphanumeric except dash and underscore

6
src/lib.rs
View file

@ -16,7 +16,7 @@
*/
//mod config;
mod config;
mod eval;
mod lex;
mod segment;
@ -37,6 +37,6 @@ pub mod stdlib {
pub use crate::stl::{static_stdlib, dynamic_stdlib};
}
/*pub mod aux {
pub mod aux {
pub use crate::config::configure;
}*/
}

11
src/stl.rs
View file

@ -56,13 +56,20 @@ pub fn static_stdlib(syms: &mut SymTable) -> Result<(), String> {
/// dynamic_stdlib
/// takes configuration data and uses it to insert dynamic
/// callbacks with configuration into a symtable
pub fn dynamic_stdlib(env: bool, syms: &mut SymTable) -> Result<(), String> {
pub fn dynamic_stdlib(syms: &mut SymTable) -> Result<(), String> {
//get CFG_RELISH_ENV from syms
let env_cfg_user_form = syms.call_symbol(
&"CFG_RELISH_ENV".to_string(), &Seg::new(), true)
.unwrap_or_else(|_: String| Box::new(Ctr::None))
.to_string()
.ne("");
syms.insert("def".to_string(), Symbol {
name: String::from("define"),
args: Args::Infinite,
conditional_branches: true,
value: ValueType::Internal(Rc::new( move |ast: &Seg, syms: &mut SymTable| -> Result<Ctr, String> {
_store_callback(ast, syms, env)
_store_callback(ast, syms, env_cfg_user_form)
},
)),
});

10
tests/test_lib_append.rs
View file

@ -9,7 +9,7 @@ mod append_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&document.to_string()) {
if let Ctr::Seg(ref s) = *eval(&tree, &mut syms).unwrap() {
@ -27,7 +27,7 @@ mod append_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&document.to_string()) {
if let Ctr::Seg(ref s) = *eval(&tree, &mut syms).unwrap() {
@ -45,7 +45,7 @@ mod append_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&document.to_string()) {
if let Ctr::Seg(ref s) = *eval(&tree, &mut syms).unwrap() {
@ -63,7 +63,7 @@ mod append_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&document.to_string()) {
if let Ctr::Seg(ref s) = *eval(&tree, &mut syms).unwrap() {
@ -81,7 +81,7 @@ mod append_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&document.to_string()) {
if let Ctr::Seg(ref s) = *eval(&tree, &mut syms).unwrap() {

6
tests/test_lib_control.rs
View file

@ -9,7 +9,7 @@ mod control_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&document.to_string()) {
if let Ctr::Integer(i) = *eval(&tree, &mut syms).unwrap() {
@ -29,7 +29,7 @@ mod control_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&document.to_string()) {
if let Ctr::Integer(i) = *eval(&tree, &mut syms).unwrap() {
@ -50,7 +50,7 @@ mod control_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&document.to_string()) {
if let Ctr::Seg(ref i) = *eval(&tree, &mut syms).unwrap() {

6
tests/test_vars.rs
View file

@ -10,7 +10,7 @@ mod var_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&doc1.to_string()) {
let eval_result = *eval(&tree, &mut syms).unwrap();
@ -49,7 +49,7 @@ mod var_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&doc1.to_string()) {
let eval_result = *eval(&tree, &mut syms).unwrap();
@ -101,7 +101,7 @@ mod var_lib_tests {
let mut syms = SymTable::new();
static_stdlib(&mut syms).unwrap();
dynamic_stdlib(false, &mut syms).unwrap();
dynamic_stdlib(&mut syms).unwrap();
if let Ok(tree) = lex(&doc1.to_string()) {
let eval_result = *eval(&tree, &mut syms).unwrap();