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use skaldpress::macro_processor::MacroProcessor;
use std::env;
use std::fs;
#[cfg(not(feature = "readline"))]
use std::io;
#[cfg(not(feature = "readline"))]
use std::io::Write;
#[cfg(feature = "readline")]
use std::ffi::{CStr, CString};
#[cfg(feature = "readline")]
use std::os::raw::c_char;
#[cfg(feature = "readline")]
#[link(name = "readline")]
extern "C" {
fn readline(p: *const c_char) -> *const c_char;
}
#[cfg(feature = "readline")]
fn readline_r(prompt: &str) -> String {
let c_prompt = CString::new(prompt).expect("Could not convert to c_string");
unsafe {
let ret = readline(c_prompt.as_ptr());
CStr::from_ptr(ret).to_string_lossy().into_owned()
}
}
fn repl() {
println!("=Skaldpress Macro Processor (REPL)");
println!(" type \"quit\" to exit");
let mut macro_processor = MacroProcessor::new();
loop {
let mut input = String::new();
loop {
let mut _input = String::new();
#[cfg(feature = "readline")]
{
_input = readline_r("> ")
}
#[cfg(not(feature = "readline"))]
{
print!("> ");
let _ = io::stdout().flush();
io::stdin()
.read_line(&mut _input)
.expect("error: unable to read user input");
}
if _input == "" {
break;
}
if _input == "quit\n" {
std::process::exit(0);
}
input.push_str(&_input);
}
println!("\x1b[32m=INPUT\x1b[0m\n{:#?}", input);
println!("\x1b[32m=PROCESSING\x1b[0m");
match macro_processor.process_input(&input) {
Ok(out) => println!("\x1b[32m=OUTPUT\x1b[0m\n{}", out),
Err(e) => println!("Error {}", e),
}
}
}
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() < 2 {
repl();
std::process::exit(0);
}
let input_file = match fs::read_to_string(&args[1]) {
Ok(x) => x,
Err(e) => {
println!("Could not read input-file \"{}\": {}", args[1], e);
std::process::exit(1);
}
};
let mut macro_processor = MacroProcessor::new();
match macro_processor.process_input(&input_file) {
Ok(out) => println!("{}", out),
Err(e) => println!("Error {}", e),
}
}
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