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mod parser;
mod process;
mod proc_env;
mod proc_var;
pub type FunResult = std::io::Result<String>;
pub type CmdResult = std::io::Result<()>;
pub use proc_env::Env;
pub use parser::Parser;
use std::collections::{HashMap, VecDeque};
pub fn run_cmd<S: Into<String>>(cmds: S) -> CmdResult {
Parser::new(cmds.into()).parse().run_cmd()
}
pub fn run_fun<S: Into<String>>(cmds: S) -> FunResult {
Parser::new(cmds.into()).parse().run_fun()
}
pub fn run_cmd_with_ctx(
code: &str,
fn_sym_table: impl FnOnce(&mut HashMap<&str, String>),
fn_str_lits: impl FnOnce(&mut VecDeque<String>),
) -> CmdResult {
parse_cmds_with_ctx(code, fn_sym_table, fn_str_lits).run_cmd()
}
pub fn run_fun_with_ctx(
code: &str,
fn_sym_table: impl FnOnce(&mut HashMap<&str, String>),
fn_str_lits: impl FnOnce(&mut VecDeque<String>),
) -> FunResult {
parse_cmds_with_ctx(code, fn_sym_table, fn_str_lits).run_fun()
}
fn parse_cmds_with_ctx(
code: &str,
fn_sym_table: impl FnOnce(&mut HashMap<&str, String>),
fn_str_lits: impl FnOnce(&mut VecDeque<String>),
) -> crate::process::GroupCmds {
let mut sym_table = HashMap::new();
fn_sym_table(&mut sym_table);
let mut str_lits = VecDeque::new();
fn_str_lits(&mut str_lits);
Parser::new(code)
.with_sym_table(sym_table)
.with_lits(str_lits)
.parse()
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_optional_args() {
let show_all = true;
let show_details = true;
let mut ls_opts = String::new();
if show_all {
ls_opts += " -a";
}
if show_details {
ls_opts += " -l";
}
let ls_cmd = format!(r#"ls {} | grep "\.\.$" | awk "{{print $9}}""#, ls_opts);
assert_eq!(run_fun(ls_cmd).unwrap(), "..");
}
}