Prepare for new version

examples/assets/read-data.js

@@ -0,0 +1,6 @@
+const fs = require('node:fs');
+const data = fs.readFileSync("examples/assets/jq_data.json");
+const items = JSON.parse(data);
+const output = items.map((item) => item.commit.committer.name);
+
+console.log(output)

examples/fannkuch-redux.ds

@@ -0,0 +1,21 @@
+numbers = (from_json input)
+flip_count = 0
+checksum = 0
+
+while numbers.0 != 1 {
+	(reverse numbers 0 numbers.0)
+	
+	if flip_count % 2 == 0 {
+		checksum += flip_count
+	} else {
+		checksum -= flip_count
+	}
+
+	checksum += flip_count * 1
+	
+	flip_count += 1
+}
+
+(output numbers)
+(output flip_count)
+(output checksum)

examples/filter_loop.ds

@@ -1,8 +1,3 @@
-list = [1 2 1 2]
+filter item in (from_json (read 'examples/assets/jq_data.json')) {
-
+	(length item.commit.committer.name) <= 10 
-new_list = filter i in list {
-	i == 2
 }
-
-(assert_equal [2 2] new_list)
-

examples/for_loop.ds

@@ -1,8 +1,6 @@
 list = [1 2 3]
 
-for i in list {
+async for i in list {
 	i += 1
 	(output i)
 }
-
-(output list)

examples/transform_loop.ds

@@ -1,8 +1,5 @@
-list = [1 2 3]
+data = (from_json (read "examples/assets/jq_data.json"))
 
-new_list = transform i in list {
+transform item in data {
-	i + 1
+	item.commit.committer.name
 }
-
-(assert_equal [2 3 4] new_list)
-

src/abstract_tree/expression.rs

@@ -1,7 +1,9 @@
 use serde::{Deserialize, Serialize};
 use tree_sitter::Node;
 
-use crate::{value_node::ValueNode, AbstractTree, Error, Identifier, Map, Result, Tool, Value};
+use crate::{
+    value_node::ValueNode, AbstractTree, Error, Identifier, Map, Result, Sublist, Tool, Value,
+};
 
 use super::{function_call::FunctionCall, logic::Logic, math::Math};
 
@@ -9,6 +11,7 @@ use super::{function_call::FunctionCall, logic::Logic, math::Math};
 pub enum Expression {
     Value(ValueNode),
     Identifier(Identifier),
+    Sublist(Box<Sublist>),
     Math(Box<Math>),
     Logic(Box<Logic>),
     FunctionCall(FunctionCall),
@@ -23,7 +26,12 @@ impl AbstractTree for Expression {
             let child = node.child(index).unwrap();
             let expression = match child.kind() {
                 "value" => Expression::Value(ValueNode::from_syntax_node(source, child)?),
-                "identifier" => Self::Identifier(Identifier::from_syntax_node(source, child)?),
+                "identifier" => {
+                    Expression::Identifier(Identifier::from_syntax_node(source, child)?)
+                }
+                "sublist" => {
+                    Expression::Sublist(Box::new(Sublist::from_syntax_node(source, child)?))
+                }
                 "math" => Expression::Math(Box::new(Math::from_syntax_node(source, child)?)),
                 "logic" => Expression::Logic(Box::new(Logic::from_syntax_node(source, child)?)),
                 "function_call" => {
@@ -39,7 +47,7 @@ impl AbstractTree for Expression {
         let child = node.child(0).unwrap();
 
         Err(Error::UnexpectedSyntaxNode {
-            expected: "value, identifier, math or function_call",
+            expected: "value, identifier, sublist, math or function_call",
             actual: child.kind(),
             location: child.start_position(),
             relevant_source: source[child.byte_range()].to_string(),
@@ -50,6 +58,7 @@ impl AbstractTree for Expression {
         match self {
             Expression::Value(value_node) => value_node.run(source, context),
             Expression::Identifier(identifier) => identifier.run(source, context),
+            Expression::Sublist(sublist) => sublist.run(source, context),
             Expression::Math(math) => math.run(source, context),
             Expression::Logic(logic) => logic.run(source, context),
             Expression::FunctionCall(function_call) => function_call.run(source, context),

src/abstract_tree/filter.rs

@@ -1,7 +1,8 @@
+use rayon::prelude::*;
 use serde::{Deserialize, Serialize};
 use tree_sitter::Node;
 
-use crate::{AbstractTree, Expression, Identifier, Item, List, Map, Result, Value};
+use crate::{AbstractTree, Error, Expression, Identifier, Item, List, Map, Result, Value};
 
 #[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
 pub struct Filter {
@@ -32,21 +33,22 @@ impl AbstractTree for Filter {
         let value = self.expression.run(source, context)?;
         let values = value.as_list()?.items();
         let key = self.identifier.inner();
-        let mut context = context.clone();
+        let new_values = List::new();
-        let mut new_values = Vec::with_capacity(values.len());
+
+        values.par_iter().try_for_each(|value| {
+            let mut context = Map::new();
 
-        for value in values.iter() {
             context.set_value(key.clone(), value.clone())?;
 
             let should_include = self.item.run(source, &mut context)?.as_boolean()?;
 
             if should_include {
-                new_values.push(value.clone());
+                new_values.items_mut().push(value.clone());
-            }
             }
 
-        let list = List::with_items(new_values);
+            Ok::<(), Error>(())
+        })?;
 
-        Ok(Value::List(list))
+        Ok(Value::List(new_values))
     }
 }

src/abstract_tree/for.rs

@@ -1,10 +1,12 @@
+use rayon::prelude::*;
 use serde::{Deserialize, Serialize};
 use tree_sitter::Node;
 
-use crate::{AbstractTree, Expression, Identifier, Item, Map, Result, Value};
+use crate::{AbstractTree, Error, Expression, Identifier, Item, Map, Result, Value};
 
 #[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
 pub struct For {
+    is_async: bool,
     identifier: Identifier,
     expression: Expression,
     item: Item,
@@ -12,6 +14,20 @@ pub struct For {
 
 impl AbstractTree for For {
     fn from_syntax_node(source: &str, node: Node) -> Result<Self> {
+        let for_node = node.child(0).unwrap();
+        let is_async = match for_node.kind() {
+            "for" => false,
+            "async for" => true,
+            _ => {
+                return Err(Error::UnexpectedSyntaxNode {
+                    expected: "\"for\" or \"async for\"",
+                    actual: for_node.kind(),
+                    location: for_node.start_position(),
+                    relevant_source: source[for_node.byte_range()].to_string(),
+                })
+            }
+        };
+
         let identifier_node = node.child(1).unwrap();
         let identifier = Identifier::from_syntax_node(source, identifier_node)?;
 
@@ -22,6 +38,7 @@ impl AbstractTree for For {
         let item = Item::from_syntax_node(source, item_node)?;
 
         Ok(For {
+            is_async,
             identifier,
             expression,
             item,
@@ -33,6 +50,15 @@ impl AbstractTree for For {
         let values = expression_run.as_list()?.items();
         let key = self.identifier.inner();
 
+        if self.is_async {
+            values.par_iter().try_for_each(|value| {
+                let mut iter_context = Map::clone_from(context);
+
+                iter_context.set_value(key.clone(), value.clone())?;
+
+                self.item.run(source, &mut iter_context).map(|_value| ())
+            })?;
+        } else {
             let original_value = context.get_value(key)?;
 
             for value in values.iter() {
@@ -46,6 +72,7 @@ impl AbstractTree for For {
             } else {
                 context.set_value(key.clone(), Value::Empty)?;
             }
+        }
 
         Ok(Value::Empty)
     }

src/abstract_tree/logic.rs

@@ -18,6 +18,7 @@ impl AbstractTree for Logic {
         let operator_node = node.child(1).unwrap().child(0).unwrap();
         let operator = match operator_node.kind() {
             "==" => LogicOperator::Equal,
+            "!=" => LogicOperator::NotEqual,
             "&&" => LogicOperator::And,
             "||" => LogicOperator::Or,
             ">" => LogicOperator::Greater,
@@ -26,7 +27,7 @@ impl AbstractTree for Logic {
             "<=" => LogicOperator::LessOrEqaul,
             _ => {
                 return Err(Error::UnexpectedSyntaxNode {
-                    expected: "==, && ||, >, <, >= or <=",
+                    expected: "==, !=, &&, ||, >, <, >= or <=",
                     actual: operator_node.kind(),
                     location: operator_node.start_position(),
                     relevant_source: source[operator_node.byte_range()].to_string(),
@@ -55,6 +56,13 @@ impl AbstractTree for Logic {
                     left == right
                 }
             }
+            LogicOperator::NotEqual => {
+                if let (Ok(left_num), Ok(right_num)) = (left.as_number(), right.as_number()) {
+                    left_num != right_num
+                } else {
+                    left != right
+                }
+            }
             LogicOperator::And => left.as_boolean()? && right.as_boolean()?,
             LogicOperator::Or => left.as_boolean()? || right.as_boolean()?,
             LogicOperator::Greater => left > right,
@@ -70,6 +78,7 @@ impl AbstractTree for Logic {
 #[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
 pub enum LogicOperator {
     Equal,
+    NotEqual,
     And,
     Or,
     Greater,

src/abstract_tree/mod.rs

@@ -23,6 +23,7 @@ pub mod math;
 pub mod remove;
 pub mod select;
 pub mod statement;
+pub mod sublist;
 pub mod tool;
 pub mod transform;
 pub mod value_node;
@@ -31,7 +32,7 @@ pub mod r#while;
 pub use {
     assignment::*, expression::*, filter::*, find::*, function_call::*, identifier::*, if_else::*,
     insert::*, item::*, logic::*, math::*, r#async::*, r#for::*, r#match::*, r#while::*, remove::*,
-    select::*, statement::*, tool::*, transform::*, value_node::*,
+    select::*, statement::*, sublist::*, tool::*, transform::*, value_node::*,
 };
 
 use tree_sitter::Node;

src/abstract_tree/sublist.rs

@@ -0,0 +1,35 @@
+use serde::{Deserialize, Serialize};
+
+use crate::{AbstractTree, Expression, List, Value};
+
+#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
+pub struct Sublist {
+    list: Expression,
+    start: Expression,
+    end: Expression,
+}
+
+impl AbstractTree for Sublist {
+    fn from_syntax_node(source: &str, node: tree_sitter::Node) -> crate::Result<Self> {
+        let list_node = node.child(0).unwrap();
+        let list = Expression::from_syntax_node(source, list_node)?;
+
+        let start_node = node.child(2).unwrap();
+        let start = Expression::from_syntax_node(source, start_node)?;
+
+        let end_node = node.child(4).unwrap();
+        let end = Expression::from_syntax_node(source, end_node)?;
+
+        Ok(Sublist { list, start, end })
+    }
+
+    fn run(&self, source: &str, context: &mut crate::Map) -> crate::Result<crate::Value> {
+        let value = self.list.run(source, context)?;
+        let list = value.as_list()?.items();
+        let start = self.start.run(source, context)?.as_integer()? as usize;
+        let end = self.end.run(source, context)?.as_integer()? as usize;
+        let sublist = &list[start..=end];
+
+        Ok(Value::List(List::with_items(sublist.to_vec())))
+    }
+}

src/abstract_tree/tool.rs

@@ -38,6 +38,7 @@ pub enum Tool {
     FromJson(Expression),
     ToJson(Expression),
     ToString(Expression),
+    ToFloat(Expression),
 
     // Command
     Bash(Vec<Expression>),
@@ -52,9 +53,12 @@ pub enum Tool {
     RandomInteger,
     RandomFloat,
 
-    // Random
+    // Table
     Columns(Expression),
     Rows(Expression),
+
+    // List
+    Reverse(Expression, Option<(Expression, Expression)>),
 }
 
 impl AbstractTree for Tool {
@@ -185,6 +189,12 @@ impl AbstractTree for Tool {
 
                 Tool::ToString(expression)
             }
+            "to_float" => {
+                let expression_node = node.child(2).unwrap();
+                let expression = Expression::from_syntax_node(source, expression_node)?;
+
+                Tool::ToFloat(expression)
+            }
             "bash" => {
                 let expressions = parse_expressions(source, node)?;
 
@@ -230,6 +240,22 @@ impl AbstractTree for Tool {
 
                 Tool::Rows(expression)
             }
+            "reverse" => {
+                let list_node = node.child(2).unwrap();
+                let list_expression = Expression::from_syntax_node(source, list_node)?;
+
+                let slice_range_nodes =
+                    if let (Some(start_node), Some(end_node)) = (node.child(3), node.child(4)) {
+                        let start = Expression::from_syntax_node(source, start_node)?;
+                        let end = Expression::from_syntax_node(source, end_node)?;
+
+                        Some((start, end))
+                    } else {
+                        None
+                    };
+
+                Tool::Reverse(list_expression, slice_range_nodes)
+            }
             _ => {
                 return Err(Error::UnexpectedSyntaxNode {
                     expected: "built-in tool",
@@ -287,7 +313,18 @@ impl AbstractTree for Tool {
                 Ok(Value::String(data))
             }
             Tool::Length(expression) => {
-                let length = expression.run(source, context)?.as_list()?.items().len();
+                let value = expression.run(source, context)?;
+                let length = match value {
+                    Value::List(list) => list.items().len(),
+                    Value::Map(map) => map.len(),
+                    Value::Table(table) => table.len(),
+                    Value::String(string) => string.chars().count(),
+                    Value::Function(_) => todo!(),
+                    Value::Float(_) => todo!(),
+                    Value::Integer(_) => todo!(),
+                    Value::Boolean(_) => todo!(),
+                    Value::Empty => todo!(),
+                };
 
                 Ok(Value::Integer(length as i64))
             }
@@ -443,6 +480,17 @@ impl AbstractTree for Tool {
 
                 Ok(Value::String(string))
             }
+            Tool::ToFloat(expression) => {
+                let value = expression.run(source, context)?;
+                let float = match value {
+                    Value::String(string) => string.parse()?,
+                    Value::Float(float) => float,
+                    Value::Integer(integer) => integer as f64,
+                    _ => return Err(Error::ExpectedNumberOrString { actual: value }),
+                };
+
+                Ok(Value::Float(float))
+            }
             Tool::Bash(expressions) => {
                 let mut command = Command::new("bash");
 
@@ -569,6 +617,21 @@ impl AbstractTree for Tool {
 
                 Ok(Value::List(List::with_items(rows)))
             }
+            Tool::Reverse(list_expression, slice_range) => {
+                let expression_run = list_expression.run(source, context)?;
+                let list = expression_run.as_list()?;
+
+                if let Some((start, end)) = slice_range {
+                    let start = start.run(source, context)?.as_integer()? as usize;
+                    let end = end.run(source, context)?.as_integer()? as usize;
+
+                    list.items_mut()[start..end].reverse()
+                } else {
+                    list.items_mut().reverse()
+                };
+
+                Ok(Value::List(list.clone()))
+            }
         }
     }
 }

src/abstract_tree/transform.rs

@@ -33,10 +33,10 @@ impl AbstractTree for Transform {
         let expression_run = self.expression.run(source, context)?;
         let values = expression_run.as_list()?.items();
         let key = self.identifier.inner();
-        let new_list = values
+        let new_values = values
             .par_iter()
             .map(|value| {
-                let mut iter_context = Map::clone_from(context);
+                let mut iter_context = Map::new();
 
                 iter_context.set_value(key.clone(), value.clone()).unwrap();
 
@@ -47,8 +47,9 @@ impl AbstractTree for Transform {
                     Err(_) => Value::Empty,
                 }
             })
+            .filter(|value| !value.is_empty())
             .collect();
 
-        Ok(Value::List(List::with_items(new_list)))
+        Ok(Value::List(List::with_items(new_values)))
     }
 }

src/abstract_tree/value_node.rs

@@ -41,18 +41,18 @@ impl AbstractTree for ValueNode {
             "boolean" => ValueType::Boolean,
             "empty" => ValueType::Empty,
             "list" => {
-                let mut child_nodes = Vec::new();
+                let mut expressions = Vec::new();
 
                 for index in 1..child.child_count() - 1 {
-                    let child_syntax_node = child.child(index).unwrap();
+                    let current_node = child.child(index).unwrap();
 
-                    if child_syntax_node.is_named() {
+                    if current_node.is_named() {
-                        let expression = Expression::from_syntax_node(source, child_syntax_node)?;
+                        let expression = Expression::from_syntax_node(source, current_node)?;
-                        child_nodes.push(expression);
+                        expressions.push(expression);
                     }
                 }
 
-                ValueType::ListExact(child_nodes)
+                ValueType::List(expressions)
             }
             "table" => {
                 let child_count = child.child_count();
@@ -148,7 +148,7 @@ impl AbstractTree for ValueNode {
             ValueType::Float => Value::Float(value_source.parse().unwrap()),
             ValueType::Integer => Value::Integer(value_source.parse().unwrap()),
             ValueType::Boolean => Value::Boolean(value_source.parse().unwrap()),
-            ValueType::ListExact(nodes) => {
+            ValueType::List(nodes) => {
                 let mut values = Vec::with_capacity(nodes.len());
 
                 for node in nodes {

src/error.rs

@@ -5,7 +5,7 @@
 
 use crate::{value::Value, Identifier};
 
-use std::{fmt, io, time, string::FromUtf8Error};
+use std::{fmt, io, time, string::FromUtf8Error, num::ParseFloatError};
 
 pub type Result<T> = std::result::Result<T, Error>;
 
@@ -151,6 +151,12 @@ impl From<FromUtf8Error> for Error {
     }
 }
 
+impl From<ParseFloatError> for Error {
+    fn from(value: ParseFloatError) -> Self {
+        Error::ToolFailure(value.to_string())
+    }
+}
+
 impl From<csv::Error> for Error {
     fn from(value: csv::Error) -> Self {
         Error::ToolFailure(value.to_string())

src/main.rs

@@ -42,6 +42,12 @@ fn main() {
 
     let mut context = Map::new();
 
+    if let Some(input) = args.input {
+        context
+            .set_value("input".to_string(), Value::String(input))
+            .unwrap();
+    }
+
     if let Some(path) = args.input_path {
         let file_contents = read_to_string(path).unwrap();
 

src/value/mod.rs

@@ -100,7 +100,7 @@ impl Value {
     }
 
     /// Copies the value stored in `self` as `i64`, or returns `Err` if `self` is not a `Value::Int`.
-    pub fn as_int(&self) -> Result<i64> {
+    pub fn as_integer(&self) -> Result<i64> {
         match self {
             Value::Integer(i) => Ok(*i),
             value => Err(Error::ExpectedInt {
@@ -219,7 +219,7 @@ impl Add for Value {
     type Output = Result<Value>;
 
     fn add(self, other: Self) -> Self::Output {
-        match (self.as_int(), other.as_int()) {
+        match (self.as_integer(), other.as_integer()) {
             (Ok(left), Ok(right)) => return Ok(Value::Integer(left + right)),
             _ => {}
         }
@@ -250,7 +250,7 @@ impl Sub for Value {
     type Output = Result<Self>;
 
     fn sub(self, other: Self) -> Self::Output {
-        match (self.as_int(), other.as_int()) {
+        match (self.as_integer(), other.as_integer()) {
             (Ok(left), Ok(right)) => return Ok(Value::Integer(left - right)),
             _ => {}
         }
@@ -271,8 +271,8 @@ impl Mul for Value {
 
     fn mul(self, other: Self) -> Self::Output {
         if self.is_integer() && other.is_integer() {
-            let left = self.as_int().unwrap();
+            let left = self.as_integer().unwrap();
-            let right = other.as_int().unwrap();
+            let right = other.as_integer().unwrap();
             let value = Value::Integer(left.saturating_mul(right));
 
             Ok(value)
@@ -307,8 +307,8 @@ impl Rem for Value {
     type Output = Result<Self>;
 
     fn rem(self, other: Self) -> Self::Output {
-        let left = self.as_int()?;
+        let left = self.as_integer()?;
-        let right = other.as_int()?;
+        let right = other.as_integer()?;
         let result = left % right;
 
         Ok(Value::Integer(result))
@@ -370,8 +370,16 @@ impl Ord for Value {
             (Value::String(left), Value::String(right)) => left.cmp(right),
             (Value::String(_), _) => Ordering::Greater,
             (Value::Float(left), Value::Float(right)) => left.total_cmp(right),
-            (Value::Float(_), _) => Ordering::Greater,
             (Value::Integer(left), Value::Integer(right)) => left.cmp(right),
+            (Value::Float(float), Value::Integer(integer)) => {
+                let int_as_float = *integer as f64;
+                float.total_cmp(&int_as_float)
+            }
+            (Value::Integer(integer), Value::Float(float)) => {
+                let int_as_float = *integer as f64;
+                int_as_float.total_cmp(float)
+            }
+            (Value::Float(_), _) => Ordering::Greater,
             (Value::Integer(_), _) => Ordering::Greater,
             (Value::Boolean(left), Value::Boolean(right)) => left.cmp(right),
             (Value::Boolean(_), _) => Ordering::Greater,

src/value/value_type.rs

@@ -15,7 +15,7 @@ pub enum ValueType {
     Float,
     Integer,
     Boolean,
-    ListExact(Vec<Expression>),
+    List(Vec<Expression>),
     Empty,
     Map(BTreeMap<String, Expression>),
     Table {
@@ -36,7 +36,7 @@ impl PartialEq for ValueType {
             (ValueType::Float, ValueType::Float) => true,
             (ValueType::Integer, ValueType::Integer) => true,
             (ValueType::Boolean, ValueType::Boolean) => true,
-            (ValueType::ListExact(left), ValueType::ListExact(right)) => left == right,
+            (ValueType::List(left), ValueType::List(right)) => left == right,
             (ValueType::Empty, ValueType::Empty) => true,
             (ValueType::Map(left), ValueType::Map(right)) => left == right,
             (
@@ -63,7 +63,7 @@ impl Display for ValueType {
             ValueType::Float => write!(f, "float"),
             ValueType::Integer => write!(f, "integer"),
             ValueType::Boolean => write!(f, "boolean"),
-            ValueType::ListExact(list) => {
+            ValueType::List(list) => {
                 write!(f, "(")?;
                 for (index, item) in list.into_iter().enumerate() {
                     if index > 0 {
@@ -109,7 +109,7 @@ impl From<&Value> for ValueType {
                     .map(|value| Expression::Value(ValueNode::new(value.value_type(), 0, 0)))
                     .collect();
 
-                ValueType::ListExact(value_nodes)
+                ValueType::List(value_nodes)
             }
             Value::Map(map) => {
                 let mut value_nodes = BTreeMap::new();
@@ -134,7 +134,7 @@ impl From<&Value> for ValueType {
                     .map(|column_name| Identifier::new(column_name.clone()))
                     .collect(),
                 rows: Box::new(Expression::Value(ValueNode::new(
-                    ValueType::ListExact(Vec::with_capacity(0)),
+                    ValueType::List(Vec::with_capacity(0)),
                     0,
                     0,
                 ))),

tree-sitter-dust/corpus/for.txt

@@ -86,3 +86,39 @@ for list in list_of_lists {
                       (expression
                         (value
                           (string))))))))))))))
+                          
+==================
+Async For Loop
+==================
+
+asnyc for list in list_of_lists {
+  async for item in list {
+    (output item)
+  }
+}
+
+---
+
+(root
+  (item
+    (statement
+      (expression
+        (identifier))))
+  (item
+    (statement
+      (for
+        (identifier)
+        (expression
+          (identifier))
+        (item
+          (statement
+            (for
+              (identifier)
+              (expression
+                (identifier))
+              (item
+                (statement
+                  (expression
+                    (tool
+                      (expression
+                        (identifier)))))))))))))

tree-sitter-dust/corpus/lists.txt

@@ -80,3 +80,35 @@ List Nesting
                         (expression
                           (value
                             (integer)))))))))))))))
+
+==================
+Sublist
+==================
+
+['answers', 42, 666].1..2
+
+---
+
+(root
+  (item
+    (statement
+      (expression
+        (sublist
+          (expression
+            (value
+              (list
+                (expression
+                  (value
+                    (string)))
+                (expression
+                  (value
+                    (integer)))
+                (expression
+                  (value
+                    (integer))))))
+          (expression
+            (value
+              (integer)))
+          (expression
+            (value
+              (integer))))))))

tree-sitter-dust/corpus/tables.txt

@@ -2,8 +2,10 @@
 Table Declaration
 ==================
 
-table <text, number> [
+table <messages, numbers> [
-    ['answer', 42]
+    ['hiya', 42]
+    ['foo', 57]
+    ['bar', 99.99]
 ]
 
 ---
@@ -27,7 +29,26 @@ table <text, number> [
                             (string)))
                         (expression
                           (value
-                            (integer)))))))))))))))
+                            (integer))))))
+                  (expression
+                    (value
+                      (list
+                        (expression
+                          (value
+                            (string)))
+                        (expression
+                          (value
+                            (integer))))))
+                  (expression
+                    (value
+                      (list
+                        (expression
+                          (value
+                            (string)))
+                        (expression
+                          (value
+                            (float)))))))))))))))
+
 ==================
 Table Assignment
 ==================

tree-sitter-dust/grammar.js

@@ -38,6 +38,7 @@ module.exports = grammar({
       $.tool,
       $.math,
       $.logic,
+      $.sublist,
     )),
 
     identifier: $ => /[a-zA-Z|_]+[._a-zA-Z0-9]*/,
@@ -55,7 +56,7 @@ module.exports = grammar({
 
     integer: $ => /[-]?[0-9]+/,
 
-    float: $ => /[-]?[0-9]+[.]{1}[0-9]*/,
+    float: $ => /[-]?[0-9]+[.]{1}[0-9]+/,
 
     string: $ => /("[^"]*?")|('[^']*?')|(`[^`]*?`)/,
 
@@ -67,7 +68,7 @@ module.exports = grammar({
     list: $ => seq(
       '[',
       repeat(seq($.expression, optional(','))),
-      ']'
+      ']',
     ),
 
     function: $ => seq(
@@ -78,7 +79,7 @@ module.exports = grammar({
       '}',
     ),
 
-    table: $ => prec.right(seq(
+    table: $ => prec(2, seq(
       'table',
       seq('<', repeat1(seq($.identifier, optional(','))), '>'),
       $.expression,
@@ -90,6 +91,14 @@ module.exports = grammar({
       '}',
     ),
 
+    sublist: $ => prec.right(seq(
+      $.expression,
+      '.',
+      $.expression,
+      '..',
+      $.expression,
+    )),
+ 
     math: $ => prec.left(seq(
       $.expression,
       $.math_operator,      
@@ -178,7 +187,7 @@ module.exports = grammar({
     ),
 
     for: $ => seq(
-      'for',
+      choice('for', 'async for'),
       $.identifier,
       'in',
       $.expression,
@@ -282,6 +291,7 @@ module.exports = grammar({
       'from_json',
       'to_json',
       'to_string',
+      'to_float',
 
       // Command
       'bash',
@@ -299,6 +309,9 @@ module.exports = grammar({
       // Tables
       'columns',
       'rows',
+      
+      // Lists
+      'reverse',
     ),
   }
 });

tree-sitter-dust/src/grammar.json

@@ -141,6 +141,10 @@
           {
             "type": "SYMBOL",
             "name": "logic"
+          },
+          {
+            "type": "SYMBOL",
+            "name": "sublist"
           }
         ]
       }
@@ -192,7 +196,7 @@
     },
     "float": {
       "type": "PATTERN",
-      "value": "[-]?[0-9]+[.]{1}[0-9]*"
+      "value": "[-]?[0-9]+[.]{1}[0-9]+"
     },
     "string": {
       "type": "PATTERN",
@@ -315,8 +319,8 @@
       ]
     },
     "table": {
-      "type": "PREC_RIGHT",
+      "type": "PREC",
-      "value": 0,
+      "value": 2,
       "content": {
         "type": "SEQ",
         "members": [
@@ -401,6 +405,35 @@
         }
       ]
     },
+    "sublist": {
+      "type": "PREC_RIGHT",
+      "value": 0,
+      "content": {
+        "type": "SEQ",
+        "members": [
+          {
+            "type": "SYMBOL",
+            "name": "expression"
+          },
+          {
+            "type": "STRING",
+            "value": "."
+          },
+          {
+            "type": "SYMBOL",
+            "name": "expression"
+          },
+          {
+            "type": "STRING",
+            "value": ".."
+          },
+          {
+            "type": "SYMBOL",
+            "name": "expression"
+          }
+        ]
+      }
+    },
     "math": {
       "type": "PREC_LEFT",
       "value": 0,
@@ -728,11 +761,20 @@
     },
     "for": {
       "type": "SEQ",
+      "members": [
+        {
+          "type": "CHOICE",
           "members": [
             {
               "type": "STRING",
               "value": "for"
             },
+            {
+              "type": "STRING",
+              "value": "async for"
+            }
+          ]
+        },
         {
           "type": "SYMBOL",
           "name": "identifier"
@@ -1138,6 +1180,10 @@
           "type": "STRING",
           "value": "to_string"
         },
+        {
+          "type": "STRING",
+          "value": "to_float"
+        },
         {
           "type": "STRING",
           "value": "bash"
@@ -1181,6 +1227,10 @@
         {
           "type": "STRING",
           "value": "rows"
+        },
+        {
+          "type": "STRING",
+          "value": "reverse"
         }
       ]
     }

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

@@ -110,6 +110,10 @@
           "type": "math",
           "named": true
         },
+        {
+          "type": "sublist",
+          "named": true
+        },
         {
           "type": "tool",
           "named": true
@@ -510,6 +514,21 @@
       ]
     }
   },
+  {
+    "type": "sublist",
+    "named": true,
+    "fields": {},
+    "children": {
+      "multiple": true,
+      "required": true,
+      "types": [
+        {
+          "type": "expression",
+          "named": true
+        }
+      ]
+    }
+  },
   {
     "type": "table",
     "named": true,
@@ -673,6 +692,14 @@
     "type": "-=",
     "named": false
   },
+  {
+    "type": ".",
+    "named": false
+  },
+  {
+    "type": "..",
+    "named": false
+  },
   {
     "type": "/",
     "named": false
@@ -725,6 +752,10 @@
     "type": "async",
     "named": false
   },
+  {
+    "type": "async for",
+    "named": false
+  },
   {
     "type": "bash",
     "named": false
@@ -857,6 +888,10 @@
     "type": "remove",
     "named": false
   },
+  {
+    "type": "reverse",
+    "named": false
+  },
   {
     "type": "rows",
     "named": false
@@ -877,6 +912,10 @@
     "type": "table",
     "named": false
   },
+  {
+    "type": "to_float",
+    "named": false
+  },
   {
     "type": "to_json",
     "named": false