begin refactor to node-struct and obj-commmander

nested/src/char_editor.rs

@@ -1,6 +1,6 @@
 use {
     crate::{
-        core::{OuterViewPort, ViewPort},
+        core::{OuterViewPort, ViewPort, Context},
         list::{ListEditor},
         sequence::{SequenceView, SequenceViewExt},
         singleton::{SingletonBuffer, SingletonView},
@@ -10,7 +10,7 @@ use {
         },
         tree::{TreeCursor, TreeNav, TreeNavResult},
         diagnostics::Diagnostics,
-        Nested
+        Nested, tree::NestedNode, Commander
     },
     std::sync::Arc,
     std::sync::RwLock,
@@ -22,6 +22,23 @@ pub struct CharEditor {
     data: SingletonBuffer<Option<char>>
 }
 
+impl Commander for CharEditor {
+    type Cmd = TerminalEvent;
+
+    fn send_cmd(&mut self, event: &TerminalEvent) {
+        match event {
+            TerminalEvent::Input(Event::Key(Key::Char(c))) => {
+                self.data.set(Some(*c));
+            }
+            TerminalEvent::Input(Event::Key(Key::Backspace))
+            | TerminalEvent::Input(Event::Key(Key::Delete)) => {
+                self.data.set(None);
+            }
+            _ => {}
+        }
+    }
+}
+
 impl CharEditor {
     pub fn new() -> Self {
         CharEditor {
@@ -36,40 +53,32 @@ impl CharEditor {
     pub fn get(&self) -> char {
         self.get_port().get_view().unwrap().get().unwrap_or('?')
     }
-}
 
-impl TreeNav for CharEditor {}
+    pub fn new_node(ctx: &Arc<RwLock<Context>>) -> NestedNode {
-impl Diagnostics for CharEditor {}
+        let data = SingletonBuffer::new(None);
 
-impl TerminalEditor for CharEditor {
+        NestedNode::new()
-    fn get_term_view(&self) -> OuterViewPort<dyn TerminalView> {
+            .set_ctx(ctx.clone())
-        self.data
+            .set_view(data
-            .get_port()
+                      .get_port()
-            .map(move |c| {                
+                      .map(move |c| {
-                TerminalAtom::from(
+                          match c {
-                    c.unwrap_or('?')
+                              Some(c) => TerminalAtom::from(c),
-                )
+                              None => TerminalAtom::new('*', TerminalStyle::fg_color((255,0,0)))
-            })
+                          }
-            .to_grid()
+                      })
-    }
+                      .to_grid()
-
+            )
-    fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
+            .with_cmd(
-        match event {
+                Arc::new(RwLock::new(CharEditor{ data }))
-            TerminalEvent::Input(Event::Key(Key::Char('\n'))) => TerminalEditorResult::Exit,
+            )
-            TerminalEvent::Input(Event::Key(Key::Char(c))) => {
-                self.data.set(Some(*c));
-                TerminalEditorResult::Exit
-            }
-            TerminalEvent::Input(Event::Key(Key::Backspace))
-            | TerminalEvent::Input(Event::Key(Key::Delete)) => {
-                self.data.set(None);
-                TerminalEditorResult::Exit
-            }
-            _ => TerminalEditorResult::Continue,
-        }
     }
 }
 
-impl Nested for CharEditor {}
+use crate::StringGen;
-
+impl StringGen for CharEditor {
+    fn get_string(&self)  -> String {
+        String::from(self.get())
+    }
+}
 

nested/src/core/context.rs

@@ -36,8 +36,8 @@ impl ReprTree {
         Arc::new(RwLock::new(tree))
     }
 
-    pub fn insert_branch(&mut self, type_tag: TypeTerm, repr: Arc<RwLock<ReprTree>>) {
+    pub fn insert_branch(&mut self, repr: Arc<RwLock<ReprTree>>) {
-        self.branches.insert(type_tag, repr);
+        self.branches.insert(repr.clone().read().unwrap().type_tag.clone(), repr.clone());
     }
 
     pub fn insert_leaf(
@@ -51,7 +51,7 @@ impl ReprTree {
             } else {
                 let mut next_repr = ReprTree::new(type_term.clone());
                 next_repr.insert_leaf(type_ladder, port);
-                self.insert_branch(type_term, Arc::new(RwLock::new(next_repr)));
+                self.insert_branch(Arc::new(RwLock::new(next_repr)));
             }
         } else {
             self.port = Some(port);
@@ -73,6 +73,15 @@ impl ReprTree {
         )
     }
 
+    pub fn get_view<V: View + ?Sized + 'static>(&self) -> Option<Arc<V>>
+    where
+        V::Msg: Clone,
+    {
+            self.get_port::<V>()?
+                .get_view()
+    }
+
+    // descend
     pub fn downcast(&self, dst_type: &TypeTerm) -> Option<Arc<RwLock<ReprTree>>> {
         self.branches.get(dst_type).cloned()
     }
@@ -84,6 +93,13 @@ impl ReprTree {
             |s, t| s?.read().unwrap().downcast(&t))
     }
 
+    // ascend
+    pub fn upcast(rt: &Arc<RwLock<Self>>, type_term: TypeTerm) -> Arc<RwLock<ReprTree>> {
+        let mut n = Self::new(type_term);
+        n.insert_branch(rt.clone());
+        Arc::new(RwLock::new(n))
+    }
+
 /*
     pub fn add_iso_repr(
         &self,
@@ -268,6 +284,7 @@ impl Context {
     pub fn type_term_from_str(&self, tn: &str) -> Option<TypeTerm> {
         self.type_dict.read().unwrap().type_term_from_str(&tn)
     }
+
     pub fn type_term_to_str(&self, t: &TypeTerm) -> String {
         self.type_dict.read().unwrap().type_term_to_str(&t)
     }

nested/src/grid/flatten.rs

@@ -1,6 +1,6 @@
 use {
     crate::{
-        core::{InnerViewPort, Observer, ObserverBroadcast, OuterViewPort, View, ViewPort},
+        core::{InnerViewPort, Observer, ObserverBroadcast, OuterViewPort, View, ViewPort, port::UpdateTask},
         grid::{GridView, GridWindowIterator},
         index::{IndexArea, IndexView},
         projection::ProjectionHelper,
@@ -113,15 +113,21 @@ where
                     }
 
                     if let Some(chunk) = s.chunks.get(&chunk_idx) {
-                        s.cast.notify(&area.map(|pt| pt + chunk.offset));
+                        s.cast.notify(&area.map(|pt| pt + chunk.offset));                    
                     }
                 },
             );
 
             if let Some(chunk) = self.chunks.get_mut(&chunk_idx) {
                 chunk.view = view;
-                self.cast
+
-                    .notify(&chunk.view.area().map(|pt| pt + chunk.offset));
+                let old_limit = chunk.limit;
+                let new_limit = *chunk.view.area().range().end();
+
+                self.cast.notify(
+                    &IndexArea::Range(
+                        Point2::new(chunk.offset.x, chunk.offset.y) ..= Point2::new(chunk.offset.x + max(old_limit.x, new_limit.x), chunk.offset.y + max(old_limit.y, new_limit.y) )));
+
             } else {
                 self.chunks.insert(
                     chunk_idx,
@@ -132,7 +138,7 @@ where
                     },
                 );
             }
-
+            
             self.update_all_offsets();
         } else {
             self.proj_helper.remove_arg(&chunk_idx);
@@ -168,15 +174,18 @@ where
 
         for chunk_idx in GridWindowIterator::from(top_range.clone()) {
             if let Some(chunk) = self.chunks.get_mut(&chunk_idx) {
-                let _old_offset = chunk.offset;
+                let old_offset = chunk.offset;
-                let _old_limit = chunk.limit;
+                let old_limit = chunk.limit;
 
+                //chunk.limit = Point2::new( col_widths[chunk_idx.x as usize]-1, row_heights[chunk_idx.y as usize]-1 );
                 chunk.limit = *chunk.view.area().range().end();
+
                 chunk.offset = Vector2::new(
                     (0..chunk_idx.x as usize).map(|x| col_widths[x]).sum(),
                     (0..chunk_idx.y as usize).map(|y| row_heights[y]).sum(),
                 );
-                /*
+/*
+
                                 if old_offset != chunk.offset {
                                     self.cast.notify(
                                         &IndexArea::Range(
@@ -191,7 +200,7 @@ where
                                         )
                                     );
                                 }
-                */
+*/
             }
         }
 
@@ -214,6 +223,7 @@ where
                     max(self.limit.y, old_limit.y),
                 ),
         ));
+
     }
 
     /// given an index in the flattened sequence,

nested/src/integer/editor.rs

@@ -65,7 +65,8 @@ impl TerminalEditor for DigitEditor {
 
     fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
         match event {
-            TerminalEvent::Input(Event::Key(Key::Char(' ')))
+            TerminalEvent::Input(Event::Key(Key::Ctrl('x')))
+            | TerminalEvent::Input(Event::Key(Key::Char(' ')))
             | TerminalEvent::Input(Event::Key(Key::Char('\n'))) => TerminalEditorResult::Exit,
             TerminalEvent::Input(Event::Key(Key::Char(c))) => {
                 self.data.set(Some(*c));
@@ -116,7 +117,7 @@ impl PosIntEditor {
             digits_editor: PTYListEditor::new(
                 Box::new(move || Arc::new(RwLock::new(DigitEditor::new(radix)))) as Box<dyn Fn() -> Arc<RwLock<DigitEditor>> + Send + Sync>,
                 SeqDecorStyle::Hex,
-                ' ',
+                None,
                 0
             ),
         }
@@ -195,7 +196,8 @@ impl TerminalEditor for PosIntEditor {
 
     fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
         match event {
-            TerminalEvent::Input(Event::Key(Key::Char(' ')))
+            TerminalEvent::Input(Event::Key(Key::Ctrl('x')))
+            | TerminalEvent::Input(Event::Key(Key::Char(' ')))
             | TerminalEvent::Input(Event::Key(Key::Char('\n'))) => {
                 self.digits_editor.up();
                 TerminalEditorResult::Exit

nested/src/integer/radix.rs

@@ -16,10 +16,19 @@ pub struct RadixProjection {
 
 impl RadixProjection {
     pub fn new(
+        // static parameters
+        //---
         src_radix: usize,
         dst_radix: usize,
+        //---
+
+        // dynamic parameters
+        //---
+        // input
         src_digits: OuterViewPort<dyn SequenceView<Item = usize>>,
+        // output
         dst_digits: InnerViewPort<RwLock<Vec<usize>>>,
+        //---
     ) -> Arc<RwLock<Self>> {
         dst_digits.0.add_update_hook(Arc::new(src_digits.0.clone()));
         let proj = Arc::new(RwLock::new(RadixProjection {

nested/src/lib.rs

@@ -27,6 +27,7 @@ pub mod diagnostics;
 pub mod char_editor;
 pub mod integer;
 pub mod make_editor;
+pub mod type_term_editor;
 
 // display
 pub mod color;
@@ -36,16 +37,50 @@ pub fn magic_header() {
     eprintln!("<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>");
 }
 
-use crate::terminal::{TerminalEditor};
+pub trait Commander {
-use crate::diagnostics::{Diagnostics};
+    type Cmd;
-use crate::tree::{TreeNav, TreeType};
+
+    fn send_cmd(&mut self, cmd: &Self::Cmd);
+}
+
+use std::sync::{Arc, RwLock};
+use crate::{
+    core::context::ReprTree,
+    singleton::SingletonView
+};
+
+pub trait ObjCommander {
+    fn send_cmd_obj(&mut self, cmd_obj: Arc<RwLock<ReprTree>>);
+}
+
+//impl<Cmd: 'static, T: Commander<Cmd>> ObjCommander for T {
+impl<C: Commander> ObjCommander for C
+where C::Cmd: 'static
+{
+    fn send_cmd_obj(&mut self, cmd_obj: Arc<RwLock<ReprTree>>) {
+        self.send_cmd(
+            &cmd_obj.read().unwrap()
+                .get_port::<dyn SingletonView<Item = C::Cmd>>().unwrap()
+                .get_view().unwrap()
+                .get()
+        );
+    }
+}
+
+pub trait StringGen {
+    fn get_string(&self) -> String;    
+}
+
+use crate::terminal::TerminalEditor;
+use crate::{tree::{TreeNav}, diagnostics::Diagnostics};
 
 pub trait Nested
     : TerminalEditor
     + TreeNav
-//   + TreeType
+ //   + TreeType
     + Diagnostics
     + Send
     + Sync
+    + std::any::Any
 {}
 

nested/src/list/editor.rs

@@ -22,12 +22,12 @@ use {
 };
 
 //<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
-                                                            
+
 pub struct ListEditor<ItemEditor>
 where ItemEditor: Nested + ?Sized + Send + Sync + 'static
 {
     pub(super) cursor: SingletonBuffer<ListCursor>,
-    pub(super) data: VecBuffer<Arc<RwLock<ItemEditor>>>,
+    pub(crate) data: VecBuffer<Arc<RwLock<ItemEditor>>>,
     pub(super) make_item_editor: Box<dyn Fn() -> Arc<RwLock<ItemEditor>> + Send + Sync>,
 
     pub(super) depth: usize,

nested/src/list/pty_editor.rs

@@ -28,8 +28,8 @@ where ItemEditor: Nested + ?Sized + Send + Sync + 'static
 {
     pub editor: ListEditor<ItemEditor>,
 
-    split_char: char,
+    split_char: Option<char>,
-
+ 
     style: SeqDecorStyle,
     depth: usize,
 
@@ -42,7 +42,7 @@ where ItemEditor: Nested + ?Sized + Send + Sync + 'static
     pub fn new(
         make_item_editor: impl Fn() -> Arc<RwLock<ItemEditor>> + Send + Sync + 'static,
         style: SeqDecorStyle,
-        split_char: char,
+        split_char: Option<char>,
         depth: usize
     ) -> Self {
         Self::from_editor(ListEditor::new(make_item_editor, depth), style, split_char, depth)
@@ -51,7 +51,7 @@ where ItemEditor: Nested + ?Sized + Send + Sync + 'static
     pub fn from_editor(
         editor: ListEditor<ItemEditor>,
         style: SeqDecorStyle,
-        split_char: char,
+        split_char: Option<char>,
         depth: usize
     ) -> Self {
         let port = editor
@@ -140,15 +140,15 @@ where ItemEditor: Nested + ?Sized + Send + Sync + 'static
                         let mut ne = new_edit.write().unwrap();
                         ne.goto(TreeCursor::home());
 
-                        match ne.handle_terminal_event(event) {
+                        ne.handle_terminal_event(event);
-                            TerminalEditorResult::Exit => {
+
-                                self.editor.cursor.set(ListCursor {
+                        if self.split_char.is_none() {
-                                    mode: ListCursorMode::Insert,
+                            self.editor.cursor.set(ListCursor {
-                                    idx: Some(idx as isize + 1),
+                                mode: ListCursorMode::Insert,
-                                });
+                                idx: Some(idx as isize + 1),
-                            }
+                            });
-                            _ => {}
                         }
+
                         TerminalEditorResult::Continue
                     }
                 },
@@ -161,36 +161,41 @@ where ItemEditor: Nested + ?Sized + Send + Sync + 'static
                             }
 
                         TerminalEvent::Input(Event::Key(Key::Char(c))) => {
-                            if *c == self.split_char {
+                            if Some(*c) == self.split_char {
                                 let c = self.editor.cursor.get();
                                 self.editor.goto(TreeCursor::none());
                                 self.editor.cursor.set(ListCursor {
                                     mode: ListCursorMode::Insert,
                                     idx: Some(1 + c.idx.unwrap_or(0))
                                 });
+                                TerminalEditorResult::Continue
                             } else {
                                 if let Some(e) = self.editor.get_item() {
-                                    match e.write().unwrap().handle_terminal_event(&TerminalEvent::Input(Event::Key(Key::Char(*c)))) {
+                                    e.write().unwrap().handle_terminal_event(&TerminalEvent::Input(Event::Key(Key::Char(*c))));
-                                        TerminalEditorResult::Exit => {
+                                    //match 
+                                    if self.split_char.is_none() {
+                                    //    TerminalEditorResult::Exit =>
+                                        {
                                             self.editor.cursor.set(ListCursor {
                                                 mode: ListCursorMode::Insert,
                                                 idx: Some(idx as isize + 1),
                                             });
                                         }
-                                        TerminalEditorResult::Continue => {
+                                      //  TerminalEditorResult::Continue => {
-                                            
+                                      //  }
-                                        }
                                     }
                                 }
+                                TerminalEditorResult::Exit
                             }
-                            TerminalEditorResult::Continue
                         }
                         ev => {
                             if let Some(e) = self.editor.get_item() {
                                 match e.write().unwrap().handle_terminal_event(ev) {
                                     TerminalEditorResult::Exit => {
-
                                         match ev {
+                                            TerminalEvent::Input(Event::Key(Key::Ctrl('x'))) => {
+                                                return TerminalEditorResult::Exit
+                                            }
                                             TerminalEvent::Input(Event::Key(Key::Backspace)) => {
                                                 self.editor.data.remove(idx as usize);
                                                 self.editor.cursor.set(ListCursor {
@@ -268,18 +273,32 @@ where ItemEditor: Nested + ?Sized + Send + Sync + 'static
     }
 }
 
+/*
+impl<ItemEditor> TreeType for PTYListEditor<ItemEditor>
+where ItemEditor: Nested + TreeType + ?Sized + Send + Sync + 'static
+{
+    fn get_type(&self, addr: &Vec<usize>) -> TypeTerm {
+        TypeTerm::new(0)
+    }
+}
+*/
 impl<ItemEditor> Nested for PTYListEditor<ItemEditor>
 where ItemEditor: Nested + ?Sized + Send + Sync + 'static
 {}
 
 use crate::{
     char_editor::CharEditor,
-    sequence::SequenceViewExt
+    sequence::SequenceViewExt,
+    StringGen
 };
 
-impl PTYListEditor<CharEditor> {
+impl<ItemEditor: StringGen + Nested + Send + Sync> StringGen for PTYListEditor<ItemEditor> {
-    pub fn get_string(&self) -> String {
+
-        self.get_data_port().map(|ce| ce.read().unwrap().get()).get_view().unwrap().iter().collect::<String>()
+   fn get_string(&self) -> String {
+        self.get_data_port()
+            .map(|ce| ce.read().unwrap().get_string())
+            .get_view().unwrap()
+            .iter().collect::<String>()
     }
 }
 

nested/src/make_editor.rs

@@ -1,4 +1,3 @@
-
 use {
     crate::{
         core::{TypeTerm, TypeLadder, Context, OuterViewPort},
@@ -17,38 +16,6 @@ use {
     std::sync::{Arc, RwLock},
 };
 
-enum RhsNode {
-    Sum (
-        Arc<RwLock< PTYListEditor< RhsNode > >>
-    ),
-    Product (
-        Arc<RwLock< PTYListEditor< RhsNode > >>
-    ),
-    String(
-        Arc<RwLock< PTYListEditor< CharEditor > >>
-    )
-}
-
-impl TreeNav for RhsNode {}
-
-impl TerminalEditor for RhsNode {
-    fn get_term_view(&self) -> OuterViewPort<dyn TerminalView> {
-        make_label("todo")
-    }
-
-    fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
-        TerminalEditorResult::Continue
-    }
-}
-
-impl Diagnostics for RhsNode {}
-impl Nested for RhsNode {}
-
-struct GrammarRuleEditor {
-    lhs: Arc<RwLock<PTYListEditor<CharEditor>>>,
-    rhs: Arc<RwLock<PTYListEditor<RhsNode>>>
-}
-
 pub fn init_editor_ctx(parent: Arc<RwLock<Context>>) -> Arc<RwLock<Context>> {
     let mut ctx = Arc::new(RwLock::new(Context::with_parent(Some(parent))));
 
@@ -56,7 +23,7 @@ pub fn init_editor_ctx(parent: Arc<RwLock<Context>>) -> Arc<RwLock<Context>> {
         "Char", Arc::new(
             |ctx: Arc<RwLock<Context>>, ty: TypeTerm, _depth: usize| {
                 Some(
-                    Arc::new(RwLock::new(CharEditor::new()))
+                    Arc::new(RwLock::new(CharEditor::new_node(&ctx)))
                         as Arc<RwLock<dyn Nested + Send + Sync>>)
             }
         )
@@ -70,7 +37,7 @@ pub fn init_editor_ctx(parent: Arc<RwLock<Context>>) -> Arc<RwLock<Context>> {
                         id, args
                     } => {
                         if args.len() > 0 {
-                            // todod factor style out of type arGS
+                            // todo: factor style out of type arGS
                             let style = if args.len() > 1 {
                                 match args[1] {
                                     TypeTerm::Num(0) => SeqDecorStyle::Plain,
@@ -82,23 +49,23 @@ pub fn init_editor_ctx(parent: Arc<RwLock<Context>>) -> Arc<RwLock<Context>> {
                                     TypeTerm::Num(6) => SeqDecorStyle::Path,
                                     _ => SeqDecorStyle::HorizontalSexpr
                                 }
-                            }else {
+                            } else {
                                 SeqDecorStyle::HorizontalSexpr
                             };
 
                             let delim = if args.len() > 1 {
                                 match args[1] {
-                                    TypeTerm::Num(0) => ' ',
+                                    TypeTerm::Num(0) => Some(' '),
-                                    TypeTerm::Num(1) => ' ',
+                                    TypeTerm::Num(1) => Some(' '),
-                                    TypeTerm::Num(2) => '\n',
+                                    TypeTerm::Num(2) => Some('\n'),
-                                    TypeTerm::Num(3) => '"',
+                                    TypeTerm::Num(3) => None,
-                                    TypeTerm::Num(4) => ',',
+                                    TypeTerm::Num(4) => Some(','),
-                                    TypeTerm::Num(5) => ',',
+                                    TypeTerm::Num(5) => Some(','),
-                                    TypeTerm::Num(6) => '/',
+                                    TypeTerm::Num(6) => Some('/'),
-                                    _ => '\0'
+                                    _ => None
                                 }
                             }else {
-                                '\0'
+                                None
                             };
 
                             Some(
@@ -167,13 +134,16 @@ pub fn init_editor_ctx(parent: Arc<RwLock<Context>>) -> Arc<RwLock<Context>> {
             }
         )
     );
-    
+
+    ctx.write().unwrap().add_typename("TerminalEvent".into());    
     ctx
 }
 
 pub fn init_math_ctx(parent: Arc<RwLock<Context>>) -> Arc<RwLock<Context>> {
     let mut ctx = Arc::new(RwLock::new(Context::with_parent(Some(parent))));
 
+    ctx.write().unwrap().add_typename("MachineInt".into());
+    ctx.write().unwrap().add_typename("Digit".into());
     ctx.write().unwrap().add_typename("BigEndian".into());
     ctx.write().unwrap().add_editor_ctor(
         "PosInt", Arc::new(

nested/src/path/mod.rs

@@ -0,0 +1,10 @@
+
+pub struct PathSegmentEditor {
+    parent: Path,
+    
+}
+
+pub struct PathEditor {
+    
+}
+

nested/src/singleton/buffer.rs

@@ -64,7 +64,7 @@ where
     pub fn get_port(&self) -> OuterViewPort<dyn SingletonView<Item = T>> {
         self.port.0.outer()
     }
-    
+
     pub fn get(&self) -> T {
         self.value.read().unwrap().clone()
     }

nested/src/sum/editor.rs

@@ -23,7 +23,7 @@ use {
 
 pub struct SumEditor {
     cur: usize,
-    editors: Vec< Arc<RwLock<dyn Nested + Send + Sync>> >,
+    pub editors: Vec< Arc<RwLock<dyn Nested + Send + Sync + 'static>> >,
 
     port: ViewPort< dyn TerminalView >,
     diag_port: ViewPort< dyn SequenceView<Item = Message> >
@@ -31,7 +31,7 @@ pub struct SumEditor {
 
 impl SumEditor {
     pub fn new(
-        editors: Vec< Arc<RwLock<dyn Nested + Send + Sync>> >
+        editors: Vec< Arc<RwLock<dyn Nested + Send + Sync + 'static>> >
     ) -> Self {
         let port = ViewPort::new();
         //let mut diag_buf = VecBuffer::new();
@@ -44,6 +44,10 @@ impl SumEditor {
         }
     }
 
+    pub fn get(&self) -> Arc<RwLock<dyn Nested + Send + Sync>> {
+        self.editors[ self.cur ].clone()
+    }
+
     pub fn select(&mut self, idx: usize) {
         self.cur = idx;
 

nested/src/terminal/terminal.rs

@@ -24,7 +24,7 @@ use {
     },
 };
 
-#[derive(PartialEq, Eq)]
+#[derive(PartialEq, Eq, Clone)]
 pub enum TerminalEvent {
     Resize(Vector2<i16>),
     Input(termion::event::Event),

nested/src/tree/addr.rs

@@ -0,0 +1,9 @@
+
+pub struct TreeAddr(Vec<usize>);
+
+impl From<Vec<usize>> for TreeAddr {
+    fn from(v: Vec<usize>) -> TreeAddr {
+        TreeAddr(v)
+    }
+}
+

nested/src/tree/mod.rs

@@ -1,18 +1,12 @@
+pub mod addr;
 pub mod cursor;
 pub mod nav;
-pub mod typeinfo;
+pub mod node;
-
-pub struct TreeAddr(Vec<usize>);
-
-impl From<Vec<usize>> for TreeAddr {
-    fn from(v: Vec<usize>) -> TreeAddr {
-        TreeAddr(v)
-    }
-}
 
 pub use {
+    addr::TreeAddr,
     cursor::TreeCursor,
     nav::{TreeNav, TreeNavResult},
-    typeinfo::TreeType
+    node::NestedNode
 };
 

nested/src/tree/node.rs

@@ -0,0 +1,124 @@
+use {
+    std::sync::{Arc, RwLock},
+    cgmath::Vector2,
+    crate::{
+        core::{ViewPort, OuterViewPort, AnyOuterViewPort, context::ReprTree, Context},
+        singleton::{SingletonView, SingletonBuffer},
+        sequence::SequenceView,
+        terminal::{TerminalView, TerminalEvent, TerminalEditor, TerminalEditorResult},
+        diagnostics::{Diagnostics, Message},
+        tree::{TreeNav, TreeCursor, TreeNavResult},
+        Commander, ObjCommander,
+        Nested
+    },
+};
+
+pub struct NestedNode {
+    ctx: Option<Arc<RwLock<Context>>>,
+    view: Option<OuterViewPort<dyn TerminalView>>,
+    diag: Option<OuterViewPort<dyn SequenceView<Item = Message>>>,
+    cmd: Option<Arc<RwLock<dyn ObjCommander + Send + Sync>>>,
+    tree_nav: Option<Arc<RwLock<dyn TreeNav + Send + Sync>>>,
+}
+
+impl ObjCommander for NestedNode {
+    fn send_cmd_obj(&mut self, cmd_obj: Arc<RwLock<ReprTree>>) {
+        if let Some(cmd) = self.cmd.as_ref() {
+            cmd.write().unwrap().send_cmd_obj(cmd_obj);
+        }
+    }
+}
+
+impl TerminalEditor for NestedNode {
+    fn get_term_view(&self) -> OuterViewPort<dyn TerminalView> {
+        self.get_view()
+    }
+
+    fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
+        let buf = SingletonBuffer::new(event.clone());
+
+        if let (Some(cmd),Some(ctx)) = (self.cmd.as_ref(),self.ctx.as_ref()) {
+            cmd.write().unwrap().send_cmd_obj(
+                ReprTree::new_leaf(
+                    ctx.read().unwrap().type_term_from_str("( TerminalEvent )").unwrap(),
+                    AnyOuterViewPort::from(buf.get_port())
+                ));
+        }
+
+        TerminalEditorResult::Continue
+    }
+}
+
+
+impl TreeNav for NestedNode {
+    fn get_cursor(&self) -> TreeCursor {
+        if let Some(tn) = self.tree_nav.as_ref() {
+            tn.read().unwrap().get_cursor()
+        } else {
+            TreeCursor::default()
+        }
+    }
+
+    fn get_cursor_warp(&self) -> TreeCursor {
+        if let Some(tn) = self.tree_nav.as_ref() {
+            tn.read().unwrap().get_cursor_warp()
+        } else {
+            TreeCursor::default()
+        }
+    }
+
+    fn get_max_depth(&self) -> usize {
+        0
+    }
+
+    fn goby(&mut self, direction: Vector2<isize>) -> TreeNavResult {
+        if let Some(tn) = self.tree_nav.as_ref() {
+            tn.write().unwrap().goby(direction)
+        } else {
+            TreeNavResult::Exit
+        }
+    }
+
+    fn goto(&mut self, new_cursor: TreeCursor) -> TreeNavResult {
+        if let Some(tn) = self.tree_nav.as_ref() {
+            tn.write().unwrap().goto(new_cursor)
+        } else {
+            TreeNavResult::Exit
+        }
+    }
+}
+
+impl Diagnostics for NestedNode {}
+impl Nested for NestedNode {}
+
+impl NestedNode {
+    pub fn new() -> Self {
+        NestedNode {
+            ctx: None,
+            view: None,
+            diag: None,
+            cmd: None,
+            tree_nav: None
+        }
+    }
+
+    pub fn set_ctx(mut self, ctx: Arc<RwLock<Context>>) -> Self {
+        self.ctx = Some(ctx);
+        self
+    }
+
+    pub fn set_view(mut self, view: OuterViewPort<dyn TerminalView>) -> Self {
+        self.view = Some(view);
+        self
+    }
+
+    pub fn with_cmd(mut self, cmd: Arc<RwLock<dyn ObjCommander + Send + Sync>>) -> Self {
+        self.cmd = Some(cmd);
+        self
+    }
+
+    pub fn get_view(&self) -> OuterViewPort<dyn TerminalView> {
+        self.view.clone().unwrap_or(ViewPort::new().into_outer())
+    }
+}
+

nested/src/type_term_editor.rs

@@ -0,0 +1,155 @@
+use {
+    crate::{
+        core::{ViewPort, OuterViewPort, TypeLadder, Context},
+        terminal::{TerminalEvent, TerminalView, TerminalEditor, TerminalEditorResult},
+        sequence::{SequenceView, decorator::SeqDecorStyle},
+        list::{PTYListEditor},
+        tree::{TreeNav, TreeCursor, TreeNavResult},
+        diagnostics::{Diagnostics, Message},
+        sum::SumEditor,
+        char_editor::CharEditor,
+        integer::PosIntEditor,
+        Nested
+    },
+    cgmath::{Vector2, Point2},
+    termion::event::{Event, Key},
+    std::{
+        sync::{Arc, RwLock},
+        any::Any
+    }
+};
+
+#[derive(Clone)]
+enum TypeTermVar {
+    Any,
+    Symbol,
+    Num,
+    List
+}
+
+pub struct TypeTermEditor {
+    ty: TypeTermVar,
+    node: SumEditor,
+}
+
+impl TypeTermEditor {
+    pub fn new(ctx: Arc<RwLock<Context>>, depth: usize) -> Self {
+        TypeTermEditor {
+            ty: TypeTermVar::Any,
+            node: SumEditor::new(
+                vec![
+                    Arc::new(RwLock::new(PTYListEditor::new(
+                        Box::new({
+                            let ctx = ctx.clone();
+                            move || {
+                                Arc::new(RwLock::new(TypeTermEditor::new(ctx.clone(), depth+1)))
+                            }
+                        }),
+                        SeqDecorStyle::HorizontalSexpr,
+                        Some(' '),
+                        depth
+                    ))),
+                    Arc::new(RwLock::new(PosIntEditor::new(10))),
+                    Arc::new(RwLock::new(PTYListEditor::new(
+                        Box::new({
+                            let ctx = ctx.clone();
+                            move || {
+                                Arc::new(RwLock::new(CharEditor::new_node(&ctx)))
+                            }
+                        }),
+                        SeqDecorStyle::Plain,
+                        None,
+                        depth
+                    ))),
+                ])
+        }
+    }
+}
+
+impl TreeNav for TypeTermEditor {
+    fn get_cursor(&self) -> TreeCursor {
+        self.node.get_cursor()
+    }
+
+    fn get_cursor_warp(&self) -> TreeCursor {
+        self.node.get_cursor_warp()
+    }
+
+    fn goby(&mut self, direction: Vector2<isize>) -> TreeNavResult {
+        self.node.goby( direction )
+    }
+
+    fn goto(&mut self, new_cursor: TreeCursor) -> TreeNavResult {
+        self.node.goto( new_cursor )
+    }
+}
+
+impl TerminalEditor for TypeTermEditor {
+    fn get_term_view(&self) -> OuterViewPort<dyn TerminalView> {
+        self.node.get_term_view()
+    }
+
+    fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
+        match event {
+            TerminalEvent::Input( termion::event::Event::Key(Key::Char(c)) ) => {
+                match self.ty {
+                    TypeTermVar::Any => {
+                        self.ty =
+                            if *c == '(' {
+                                self.node.select(0);
+                                self.dn();
+                                TypeTermVar::List
+                            } else if c.to_digit(10).is_some() {
+                                self.node.select(1);
+                                self.dn();
+                                self.node.handle_terminal_event( event );
+                                TypeTermVar::Num
+                            } else {
+                                self.node.select(2);
+                                self.dn();
+                                self.node.handle_terminal_event( event );
+                                TypeTermVar::Symbol
+                            };
+                        TerminalEditorResult::Continue
+                    },
+                    _ => {
+                        if *c  == '(' {
+                            let mut child = Arc::new(RwLock::new(TypeTermEditor {
+                                ty: self.ty.clone(),
+                                node: SumEditor::new(
+                                    vec![
+                                        self.node.editors[0].clone(),
+                                        self.node.editors[1].clone(),
+                                        self.node.editors[2].clone(),
+                                    ])
+                            }));
+
+                            self.ty = TypeTermVar::List;
+                            self.node.select(0);
+/*
+                            let l = self.node.editors[0].clone();
+                            let l = l.downcast::<RwLock<PTYListEditor<TypeTermEditor>>>().unwrap();
+                            l.write().unwrap().data.push(child);
+                            */
+                            TerminalEditorResult::Continue
+                        } else {
+                            self.node.handle_terminal_event( event )
+                        }
+                    }
+                }
+            },
+            event => {
+                self.node.handle_terminal_event( event )
+            }
+        }
+    }
+}
+
+impl Diagnostics for TypeTermEditor {
+    fn get_msg_port(&self) -> OuterViewPort<dyn SequenceView<Item = Message>> {
+        self.node.get_msg_port()
+    }
+}
+
+impl Nested for TypeTermEditor {}
+

shell/src/main.rs

@@ -2,19 +2,19 @@ extern crate portable_pty;
 
 mod ascii_box;
 mod monstera;
-mod process;
+//mod process;
 mod pty;
-mod command;
+//mod command;
 mod plot;
 
 use {
     crate::{
-        process::ProcessLauncher,
+//        process::ProcessLauncher,
-        command::Commander
+//        command::Commander
     },
     cgmath::{Point2, Vector2},
     nested::{
-        core::{port::UpdateTask, Observer, OuterViewPort, View, ViewPort, Context, TypeTerm},
+        core::{port::UpdateTask, Observer, OuterViewPort, AnyOuterViewPort, View, ViewPort, Context, TypeTerm, ReprTree},
         index::IndexArea,
         list::{ListCursorMode, PTYListEditor},
         sequence::{SequenceView, decorator::{SeqDecorStyle, Separate}},
@@ -29,6 +29,7 @@ use {
         product::ProductEditor,
         sum::SumEditor,
         diagnostics::{Diagnostics},
+        index::{buffer::IndexBuffer},
         Nested
     },
     std::sync::{Arc, RwLock},
@@ -43,12 +44,20 @@ async fn main() {
     let mut term = Terminal::new(term_port.outer());
     let term_writer = term.get_writer();
 
+    let mut portmutex = Arc::new(RwLock::new(()));
+
     // Update Loop //
     let tp = term_port.clone();
-    async_std::task::spawn(async move {
+    async_std::task::spawn({
-        loop {
+        let portmutex = portmutex.clone();
-            tp.update();
+        async move {
-            async_std::task::sleep(std::time::Duration::from_millis(30)).await;
+            loop {
+                {
+                    let l = portmutex.write().unwrap();
+                    tp.update();
+                }
+                async_std::task::sleep(std::time::Duration::from_millis(10)).await;
+            }
         }
     });
 
@@ -58,16 +67,53 @@ async fn main() {
     let ctx = nested::make_editor::init_math_ctx(ctx);
     let ctx = nested::make_editor::init_os_ctx(ctx);
 
+    let mut vb = VecBuffer::<char>::new();
+    let mut rt_char = ReprTree::new_leaf(
+        ctx.read().unwrap().type_term_from_str("( List Char )").unwrap(),
+        AnyOuterViewPort::from(vb.get_port())
+    );
+    let mut rt_digit = ReprTree::upcast(&rt_char, ctx.read().unwrap().type_term_from_str("( List ( Digit 10 ) )").unwrap());
+    rt_digit.write().unwrap().insert_branch(
+        ReprTree::new_leaf(
+            ctx.read().unwrap().type_term_from_str("( List MachineInt )").unwrap(),
+            AnyOuterViewPort::from(
+                vb.get_port().to_sequence().map(
+                    |c: &char| {
+                        c.to_digit(10).unwrap()
+                    }
+                )
+            )
+        )
+    );
+    
+/*    
+    ctx.write().unwrap().add_morphism(
+        MorphismType{
+            mode: MorphismMode::Iso,
+            src_type: 
+        },
+        Box::new(
+            |repr| {
+                RadixProjection::new(
+                    
+                )
+            }
+        )
+    );
+     */
+
     let c = ctx.clone();
     let mut process_list_editor =
         PTYListEditor::new(
             Box::new( move || {
-                Arc::new(RwLock::new(Commander::new(ctx.clone())))
+                Arc::new(RwLock::new(nested::type_term_editor::TypeTermEditor::new(c.clone(), 1)))
+//                Arc::new(RwLock::new(CharEditor::new_node(&c)))
+                //Context::make_editor( c.clone(), c.read().unwrap().type_term_from_str("( String )").unwrap(), 1 ).unwrap()
             }),
             SeqDecorStyle::Plain,
-            '\0',
+            Some('\n'),
             0
-        );
+);
 
     async_std::task::spawn(async move {
         let mut table = nested::index::buffer::IndexBuffer::new();
@@ -84,7 +130,7 @@ async fn main() {
 
         let mut cur_size = nested::singleton::SingletonBuffer::new(Vector2::new(10, 10));
         let mut status_chars = VecBuffer::new();
-
+        
         table.insert_iter(vec![
             (Point2::new(0, 0), magic.clone()),
             (
@@ -96,12 +142,49 @@ async fn main() {
             (Point2::new(0, 4),
              process_list_editor.editor
              .get_seg_seq_view()
-             .separate(
+             .enumerate()
-                 make_label(" ~~  ~~  ~~  ~~  ~~  ~~  ~~  ~~  ~~  ~~")
+             .map(
-                     .map_item(|p,a| a.add_style_front(TerminalStyle::fg_color((40,40,40))))
+                 |(n, segment)| {
+                     let mut buf = IndexBuffer::new();
+                     buf.insert_iter(vec![
+                         (Point2::new(0, 0),
+                          make_label(match n+1 {
+                              1 => "I) ",
+                              2 => "II) ",
+                              3 => "III) ",
+                              4 => "IV) ",
+                              5 => "V) ",
+                              6 => "VI) ",
+                              7 => "VII) ",
+                              8 => "IIX) ",
+                              9 => "IX) ",
+                              10 => "X) ",
+                              _ => ""
+                          })),
+                         (Point2::new(1, 0), segment.clone())
+                     ]);
+
+                     buf.get_port()
+                 }
              )
+             /*
+             .separate({
+                 let mut buf = IndexBuffer::new();
+                 buf.insert(Point2::new(1,0),
+                            make_label(" ~~  ~~  ~~  ~~  ~~  ~~  ~~  ~~  ~~  ~~")
+                            .map_item(
+                                |p,a|
+                                a.add_style_front(TerminalStyle::fg_color((40,40,40)))
+                            )
+                 );
+                 buf.get_port()
+             }
+            )
+             */
              .to_grid_vertical()
-             .flatten()),
+             .flatten()
+             .flatten()
+            ),
 
             (Point2::new(0, 5), make_label(" ")),
             (Point2::new(0, 6), magic.clone()),
@@ -165,62 +248,18 @@ async fn main() {
             tree_addr: vec![0],
         });
 
+
         loop {
-            status_chars.clear();
-            let cur = process_list_editor.get_cursor();
-
-            if cur.tree_addr.len() > 0 {
-                status_chars.push(TerminalAtom::new(
-                    '@',
-                    TerminalStyle::fg_color((150, 80,230)).add(TerminalStyle::bold(true)),
-                ));
-                for x in cur.tree_addr {
-                    for c in format!("{}", x).chars() {
-                        status_chars
-                            .push(TerminalAtom::new(c, TerminalStyle::fg_color((0, 100, 20))));
-                    }
-                    status_chars.push(TerminalAtom::new(
-                        '.',
-                        TerminalStyle::fg_color((150, 80,230))
-                    ));
-                }
-
-                status_chars.push(TerminalAtom::new(
-                    ':',
-                    TerminalStyle::fg_color((150, 80,230)).add(TerminalStyle::bold(true)),
-                ));
-                for c in match cur.leaf_mode {
-                    ListCursorMode::Insert => "INSERT",
-                    ListCursorMode::Select => "SELECT"
-                }
-                .chars()
-                {
-                    status_chars.push(TerminalAtom::new(
-                        c,
-                        TerminalStyle::fg_color((200, 200, 20)),
-                    ));
-                }
-                status_chars.push(TerminalAtom::new(
-                    ':',
-                    TerminalStyle::fg_color((150, 80,230)).add(TerminalStyle::bold(true)),
-
-                ));
-            } else {
-                for c in "Press <DN> to enter".chars() {
-                    status_chars.push(TerminalAtom::new(
-                        c,
-                        TerminalStyle::fg_color((200, 200, 20)),
-                    ));
-                }
-            }
-
             let ev = term.next_event().await;
- 
+            let l = portmutex.write().unwrap();
+
             if let TerminalEvent::Resize(new_size) = ev {
                 cur_size.set(new_size);
                 term_port.inner().get_broadcast().notify(&IndexArea::Full);
                 continue;
             }
+
+
 /*
             if let Some(process_editor) = process_list_editor.get_item() {
                 let mut pe = process_editor.write().unwrap();
@@ -235,7 +274,7 @@ async fn main() {
             }
                 */
             }
-*/            
+*/
             match ev {
                 TerminalEvent::Input(Event::Key(Key::Ctrl('d'))) => break,
                 TerminalEvent::Input(Event::Key(Key::Ctrl('l'))) => {
@@ -284,6 +323,54 @@ async fn main() {
                     }
                 }
             }
+
+            status_chars.clear();
+            let cur = process_list_editor.get_cursor();
+
+            if cur.tree_addr.len() > 0 {
+                status_chars.push(TerminalAtom::new(
+                    '@',
+                    TerminalStyle::fg_color((150, 80,230)).add(TerminalStyle::bold(true)),
+                ));
+                for x in cur.tree_addr {
+                    for c in format!("{}", x).chars() {
+                        status_chars
+                            .push(TerminalAtom::new(c, TerminalStyle::fg_color((0, 100, 20))));
+                    }
+                    status_chars.push(TerminalAtom::new(
+                        '.',
+                        TerminalStyle::fg_color((150, 80,230))
+                    ));
+                }
+
+                status_chars.push(TerminalAtom::new(
+                    ':',
+                    TerminalStyle::fg_color((150, 80,230)).add(TerminalStyle::bold(true)),
+                ));
+                for c in match cur.leaf_mode {
+                    ListCursorMode::Insert => "INSERT",
+                    ListCursorMode::Select => "SELECT"
+                }
+                .chars()
+                {
+                    status_chars.push(TerminalAtom::new(
+                        c,
+                        TerminalStyle::fg_color((200, 200, 20)),
+                    ));
+                }
+                status_chars.push(TerminalAtom::new(
+                    ':',
+                    TerminalStyle::fg_color((150, 80,230)).add(TerminalStyle::bold(true)),
+
+                ));
+            } else {
+                for c in "Press <DN> to enter".chars() {
+                    status_chars.push(TerminalAtom::new(
+                        c,
+                        TerminalStyle::fg_color((200, 200, 20)),
+                    ));
+                }
+            }
         }
 
         drop(term);

shell/src/process.rs

@@ -21,7 +21,7 @@ use {
 };
 
 //<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
-
+/*
 pub struct ProcessArg {
     editor:
         PTYListEditor<CharEditor>,
@@ -274,4 +274,4 @@ impl Diagnostics for ProcessLauncher {
 }
 
 impl Nested for ProcessLauncher {}
-
+*/