Implement error reporting

The library has been redesigned so that all queries can be entered
before any values are parsed. This allows all errors unrelated to value
parsing to be displayed as a batch.

1 files changed, 60 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..0f24c2c
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,60 @@
+use switchboard::*;
+
+
+fn main() {
+    let mut args = Switchboard::from_env();
+    args.named("version");
+    args.named("verbose").short('v');
+    match args.peek() {
+        Some("run") => { args.pop(); run_program(args) }
+        Some("asm") => { args.pop(); assemble_program(args) }
+        _ => run_program(args),
+    }
+}
+
+fn run_program(mut args: Switchboard) {
+    println!("RUN PROGRAM");
+
+    args.positional("source").required();
+    args.named("debug").short('d');
+    args.named("fullscreen").short('f');
+    args.named("zoom").short('z').quick("3").default("1");
+    args.raise_errors();
+
+    let verbose    = args.get("verbose").as_bool();
+    let version    = args.get("version").as_bool();
+    let debug      = args.get("debug").as_bool();
+    let fullscreen = args.get("fullscreen").as_bool();
+    let zoom       = args.get("zoom").as_u32();
+    let source     = args.get("source").as_path();
+
+    println!("Verbose: {verbose:?}");
+    println!("Version: {version:?}");
+    println!("Source path: {source:?}");
+    println!("Debug: {debug:?}");
+    println!("Fullscreen: {fullscreen:?}");
+    println!("Zoom: {zoom:?}");
+}
+
+fn assemble_program(mut args: Switchboard) {
+    println!("ASSEMBLE PROGRAM");
+
+    args.positional("source");
+    args.positional("destination");
+    args.positional("extension").default("brc");
+    args.named("no-libs");
+    args.named("no-project-libs");
+    args.raise_errors();
+
+    let source_path      = args.get("source").as_path();
+    let destination_path = args.get("destination").as_path();
+    let extension        = args.get("extension").as_string();
+    let no_libs          = args.get("no-libs").as_bool();
+    let no_project_libs  = args.get("no-project-libs").as_bool();
+
+    println!("Source path: {source_path:?}");
+    println!("Destination path: {destination_path:?}");
+    println!("Extension: {extension:?}");
+    println!("No libs: {no_libs:?}");
+    println!("No project libs: {no_project_libs:?}");
+}