Implemented heredocs and herestrings

src/builtin/echo.rs

@@ -75,6 +75,7 @@ pub fn echo(node: Node, shenv: &mut ShEnv) -> ShResult<()> {
 		}
 
 		shenv.collect_redirs(redirs);
+		log!(DEBUG,"{:?}",shenv.ctx().redirs());
 		shenv.ctx_mut().activate_rdrs()?;
 		write_out(formatted)?;
 

src/builtin/pwd.rs

@@ -8,43 +8,10 @@ pub fn pwd(node: Node, shenv: &mut ShEnv) -> ShResult<()> {
 		let mut pwd = shenv.vars().get_var("PWD").to_string();
 		pwd.push('\n');
 
-		if shenv.ctx().flags().contains(ExecFlags::NO_FORK) {
-			shenv.collect_redirs(redirs);
-			if let Err(e) = shenv.ctx_mut().activate_rdrs() {
-				eprintln!("{:?}",e);
-				exit(1);
-			}
-			if let Err(e) = write_out(pwd) {
-				eprintln!("{:?}",e);
-				exit(1);
-			}
-			exit(0);
-		} else {
-			match unsafe { fork()? } {
-				Child => {
-					if let Err(e) = shenv.ctx_mut().activate_rdrs() {
-						eprintln!("{:?}",e);
-						exit(1);
-					}
-					if let Err(e) = write_out(pwd) {
-						eprintln!("{:?}",e);
-						exit(1);
-					}
-					exit(0);
-				}
-				Parent { child } => {
-					shenv.reset_io()?;
-					let children = vec![
-						ChildProc::new(child, Some("echo"), Some(child))?
-					];
-					let job = JobBldr::new()
-						.with_children(children)
-						.with_pgid(child)
-						.build();
-					wait_fg(job, shenv)?;
-				}
-			}
-		}
+		shenv.collect_redirs(redirs);
+		shenv.ctx_mut().activate_rdrs()?;
+		write_out(pwd)?;
+
 	} else { unreachable!() }
 	Ok(())
 }