Fix command syntax; Modify shell prompt

src/main.rs

@@ -4,8 +4,8 @@ use clap::{Parser, Subcommand};
 use crossterm::event::{KeyCode, KeyModifiers};
 use nu_ansi_term::Style;
 use reedline::{
-    default_emacs_keybindings, DefaultPrompt, EditCommand, Emacs, Highlighter, Reedline,
-    ReedlineEvent, Signal, SqliteBackedHistory, StyledText,
+    default_emacs_keybindings, DefaultPrompt, DefaultPromptSegment, EditCommand, Emacs,
+    Highlighter, Reedline, ReedlineEvent, Signal, SqliteBackedHistory, StyledText,
 };
 
 use std::{fs::read_to_string, path::PathBuf};
@@ -172,27 +172,30 @@ impl Highlighter for DustHighlighter {
 
 fn run_shell(context: Map) -> Result<()> {
     let mut interpreter = Interpreter::new(context.clone());
-    let prompt = DefaultPrompt::default();
+    let mut prompt = DefaultPrompt::default();
+
+    prompt.left_prompt = DefaultPromptSegment::Basic(">".to_string());
+
     let mut keybindings = default_emacs_keybindings();
 
     keybindings.add_binding(
-        KeyModifiers::NONE,
-        KeyCode::Enter,
+        KeyModifiers::CONTROL,
+        KeyCode::Char(' '),
         ReedlineEvent::Edit(vec![EditCommand::InsertNewline]),
     );
     keybindings.add_binding(
         KeyModifiers::CONTROL,
-        KeyCode::Char(' '),
-        ReedlineEvent::Submit,
-    );
-    keybindings.add_binding(
-        KeyModifiers::NONE,
         KeyCode::Tab,
         ReedlineEvent::UntilFound(vec![
             ReedlineEvent::Menu("completion_menu".to_string()),
             ReedlineEvent::MenuNext,
         ]),
     );
+    keybindings.add_binding(
+        KeyModifiers::NONE,
+        KeyCode::Tab,
+        ReedlineEvent::Edit(vec![EditCommand::InsertString("    ".to_string())]),
+    );
 
     let edit_mode = Box::new(Emacs::new(keybindings));
     let history = Box::new(

tree-sitter-dust/corpus/commands.txt

@@ -9,11 +9,10 @@ Simple Command
 (root
   (statement
     (expression
-      (command
-        (command_text)))))
+      (command))))
 
 ================================================================================
-Nested Command
+Command Sequence
 ================================================================================
 
 *less *ls
@@ -23,17 +22,16 @@ Nested Command
 (root
   (statement
     (expression
-      (command
-        (command_text)
-        (command_text)))))
+      (command)))
+  (statement
+    (expression
+      (command))))
 
 ================================================================================
 Command with Arguments
 ================================================================================
 
-*ls --long -a;
-(*git status)
-*git log;
+*ls --long -a
 
 --------------------------------------------------------------------------------
 
@@ -41,19 +39,15 @@ Command with Arguments
   (statement
     (expression
       (command
-        (command_text)
-        (command_text)
-        (command_text)
-        (command_text)
-        (command_text)
-        (command_text)
-        (command_text)))))
+        (command_argument)
+        (command_argument)))))
 
 ================================================================================
-Nested Command with Arguments
+Command Sequence with Arguments
 ================================================================================
 
-*less *ls --long -a
+*cargo run -- -c "output('hi there')"
+*ls --long -a
 
 --------------------------------------------------------------------------------
 
@@ -61,7 +55,12 @@ Nested Command with Arguments
   (statement
     (expression
       (command
-        (command_text)
-        (command_text)
-        (command_text)
-        (command_text)))))
+        (command_argument)
+        (command_argument)
+        (command_argument)
+        (command_argument))))
+  (statement
+    (expression
+      (command
+        (command_argument)
+        (command_argument)))))

tree-sitter-dust/corpus/pipe.txt

@@ -9,10 +9,8 @@ Simple Command Pipe
 (root
   (statement
     (pipe
-      (command
-        (command_text))
-      (command
-        (command_text)))))
+      (command)
+      (command))))
 
 ================================================================================
 Simple Function Pipe

tree-sitter-dust/grammar.js

@@ -86,13 +86,14 @@ module.exports = grammar({
       prec.right(
         seq(
           '*',
-          repeat($.command_text),
+          /\S+/,
+          repeat($.command_argument),
         ),
       ),
 
-    command_text: $ =>
+    command_argument: $ =>
       choice(
-        /\S+/,
+        /[^*\s]+/,
         /("[^"]*?")|('[^']*?')|(`[^`]*?`)/,
       ),
 

tree-sitter-dust/src/grammar.json

@@ -235,22 +235,26 @@
             "type": "STRING",
             "value": "*"
           },
+          {
+            "type": "PATTERN",
+            "value": "\\S+"
+          },
           {
             "type": "REPEAT",
             "content": {
               "type": "SYMBOL",
-              "name": "command_text"
+              "name": "command_argument"
             }
           }
         ]
       }
     },
-    "command_text": {
+    "command_argument": {
       "type": "CHOICE",
       "members": [
         {
           "type": "PATTERN",
-          "value": "\\S+"
+          "value": "[^*\\s]+"
         },
         {
           "type": "PATTERN",

tree-sitter-dust/src/node-types.json

@@ -65,14 +65,14 @@
       "required": false,
       "types": [
         {
-          "type": "command_text",
+          "type": "command_argument",
           "named": true
         }
       ]
     }
   },
   {
-    "type": "command_text",
+    "type": "command_argument",
     "named": true,
     "fields": {}
   },