From a7c60c32bd2708f6f0867e5f502e91b72fa3b671 Mon Sep 17 00:00:00 2001
From: Benjamin Bolte <ben@bolte.cc>
Date: Wed, 30 Oct 2024 23:27:36 -0700
Subject: [PATCH] v0.0.1

---
 klang/src/parser/mod.rs        | 23 +++++++++++++++++++++--
 klang/src/parser/passes/mod.rs | 21 ++++++++++++++++-----
 2 files changed, 37 insertions(+), 7 deletions(-)

diff --git a/klang/src/parser/mod.rs b/klang/src/parser/mod.rs
index 9ea9e63..000b8ee 100644
--- a/klang/src/parser/mod.rs
+++ b/klang/src/parser/mod.rs
@@ -60,8 +60,27 @@ pub fn write_program_to_file(
             ))
         })?;
     } else {
-        let program_str = format!("{:#?}", program.ast_program);
-        fs::write(file_path, &program_str).map_err(|e| {
+        let mut output = String::new();
+
+        fn render_command(cmd: &ast::Command, indent: usize) -> String {
+            let mut result = format!("{:indent$}{}", "", cmd.text, indent = indent);
+            if !cmd.children.is_empty() {
+                result.push_str(" {\n");
+                for child in &cmd.children {
+                    result.push_str(&render_command(child, indent + 2));
+                }
+                result.push_str(&format!("{:indent$}}}\n", "", indent = indent));
+            } else {
+                result.push('\n');
+            }
+            result
+        }
+
+        for command in &program.ast_program.commands {
+            output.push_str(&render_command(command, 0));
+        }
+
+        fs::write(file_path, &output).map_err(|e| {
             ParseError::new(format!(
                 "Error writing program to file '{}': {}",
                 file_path.display(),
diff --git a/klang/src/parser/passes/mod.rs b/klang/src/parser/passes/mod.rs
index 2619062..8e1d06f 100644
--- a/klang/src/parser/passes/mod.rs
+++ b/klang/src/parser/passes/mod.rs
@@ -106,7 +106,12 @@ fn process_line_with_args(
                                     )));
                                 }
                                 call_stack.push(func_sig.clone());
-                                let mut commands = Vec::new();
+
+                                // Create parent command with function name
+                                let function_text = substitute_text_with_args(name, arg_map)?;
+
+                                // Process child commands
+                                let mut children = Vec::new();
                                 for inner_line in &func_def.lines {
                                     let mut cmds = process_line_with_args(
                                         inner_line,
@@ -114,10 +119,16 @@ fn process_line_with_args(
                                         call_stack,
                                         &new_arg_map,
                                     )?;
-                                    commands.append(&mut cmds);
+                                    children.append(&mut cmds);
                                 }
+
                                 call_stack.pop();
-                                return Ok(commands);
+
+                                // Return single command with children
+                                return Ok(vec![AstCommand {
+                                    text: function_text,
+                                    children,
+                                }]);
                             }
                         }
                     }
@@ -152,7 +163,7 @@ fn process_command_with_args(
         let text = substitute_text_with_args(text, arg_map)?;
         Ok(AstCommand {
             text,
-            children: Vec::new(), // Removed children handling since field doesn't exist
+            children: Vec::new(),
         })
     } else {
         Err(ParseError::new("Command without text".to_string()))
@@ -179,7 +190,7 @@ fn substitute_text_with_args(
                 if let Some(value) = arg_map.get(&arg.text) {
                     result.push_str(value);
                 } else {
-                    return Err(ParseError::new(format!("Argument not found: {}", arg.text)));
+                    result.push_str(&arg.text);
                 }
             }
             None => {}