Unify formatting on canonical syntax

Cargo.lock

@@ -23,16 +23,6 @@ version = "3.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72f5acc6cb2ba439de613abc23857ec3d78374d8ed5ac84e9d11336e87da8649"
 
-[[package]]
-name = "cc"
-version = "1.2.66"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5d6cac793997bd970000024b2934968efe83b382de4fdcf4fcb46b6ee4ad996"
-dependencies = [
- "find-msvc-tools",
- "shlex",
-]
-
 [[package]]
 name = "cfg-if"
 version = "1.0.4"
@@ -92,8 +82,6 @@ version = "0.1.3"
 dependencies = [
  "decodal",
  "serde_json",
- "tree-sitter",
- "tree-sitter-decodal",
  "wasm-bindgen",
 ]
 
@@ -121,12 +109,6 @@ dependencies = [
  "wasm-bindgen",
 ]
 
-[[package]]
-name = "find-msvc-tools"
-version = "0.1.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5baebc0774151f905a1a2cc41989300b1e6fbb29aff0ceffa1064fdd3088d582"
-
 [[package]]
 name = "fluent-uri"
 version = "0.1.4"
@@ -345,12 +327,6 @@ dependencies = [
  "syn 3.0.3",
 ]
 
-[[package]]
-name = "shlex"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8fadd59c855ef2080decdef8ff161eb6661b86933c9d82e5ba29dc602a55aba"
-
 [[package]]
 name = "slab"
 version = "0.4.12"
@@ -379,24 +355,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "tree-sitter"
-version = "0.22.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df7cc499ceadd4dcdf7ec6d4cbc34ece92c3fa07821e287aedecd4416c516dca"
-dependencies = [
- "cc",
- "regex",
-]
-
-[[package]]
-name = "tree-sitter-decodal"
-version = "0.1.0"
-dependencies = [
- "cc",
- "tree-sitter",
-]
-
 [[package]]
 name = "unicode-ident"
 version = "1.0.24"

Cargo.toml

@@ -7,8 +7,8 @@ members = [
   "crates/decodal-language-tools",
   "crates/decodal-language-service",
   "crates/decodal-lsp",
-  "editors/tree-sitter-decodal",
 ]
+exclude = ["editors/tree-sitter-decodal"]
 resolver = "2"
 
 [workspace.package]

RELEASING.md

@@ -5,22 +5,27 @@ Run all commands from the repository root. Publishing requires Cargo, npm, and J
 ## Versions
 
 - Rust crates: `0.1.3`
-- `tree-sitter-decodal`: `0.1.0`
 - `decodal-wasm` npm/JSR package: `0.1.4`
-- `decodal-codemirror`: unchanged at `0.1.5`
+- `decodal-codemirror`: `0.1.6`
 
 ## Validate
 
 ```sh
+cargo fmt --check
 cargo test --workspace
+cargo test -p decodal --no-default-features
 cargo clippy --workspace --all-targets -- -D warnings
 cargo clippy -p decodal-wasm --target wasm32-unknown-unknown -- -D warnings
-npm --prefix site/decodal-site run build:runtime
+cargo clippy -p decodal-language-tools --target wasm32-unknown-unknown -- -D warnings
+npm --prefix site/decodal-site run build:wasm
+npm --prefix packages/decodal-codemirror test
 npm --prefix site/decodal-site test
 npm --prefix site/decodal-site run build
 deno check packages/decodal-wasm/mod.ts
 npm pack --dry-run ./packages/decodal-wasm
 deno publish --dry-run --config packages/decodal-wasm/jsr.json
+npm pack --dry-run ./packages/decodal-codemirror
+deno publish --dry-run --config packages/decodal-codemirror/jsr.json
 ```
 
 ## Publish Rust crates
@@ -31,7 +36,6 @@ Run the corresponding command with `--dry-run` immediately before each real publ
 ```sh
 cargo publish -p decodal-derive
 cargo publish -p decodal
-cargo publish -p tree-sitter-decodal
 cargo publish -p decodal-language-service
 cargo publish -p decodal-language-tools
 cargo publish -p decodal-lsp
@@ -41,12 +45,14 @@ cargo publish -p decodal-lsp
 
 ## Publish JavaScript packages
 
-The runtime build regenerates and normalizes the committed npm/JSR package before publishing.
+The WASM build regenerates and normalizes both committed npm/JSR packages before publishing.
 
 ```sh
-npm --prefix site/decodal-site run build:runtime
+npm --prefix site/decodal-site run build:wasm
 npm publish ./packages/decodal-wasm
 deno publish --config packages/decodal-wasm/jsr.json
+npm publish ./packages/decodal-codemirror
+deno publish --config packages/decodal-codemirror/jsr.json
 ```
 
 After both registries accept the release, tag the release commit and update the deployed site.

crates/decodal-core/src/ast.rs

@@ -70,6 +70,13 @@ pub enum Expr {
         params: Vec<Param>,
         body: ExprId,
     },
+    /// An explicitly parenthesized expression.
+    ///
+    /// Keeping this node preserves the delimiters and their trivia for source
+    /// tools while evaluation remains equivalent to evaluating `expr`.
+    Parenthesized {
+        expr: ExprId,
+    },
     Match {
         scrutinee: ExprId,
         arms: Vec<MatchArm>,

crates/decodal-core/src/eval.rs

@@ -471,6 +471,13 @@ impl<L: ImportLoader> Engine<L> {
                     },
                 )))
             }
+            Expr::Parenthesized { expr } => self.eval_expr(
+                ExprRef {
+                    module: reference.module,
+                    expr,
+                },
+                env,
+            ),
             Expr::Match { scrutinee, arms } => {
                 let value = self.eval_expr(
                     ExprRef {
@@ -827,6 +834,14 @@ impl<L: ImportLoader> Engine<L> {
     ) -> Result<bool> {
         match self.expr(pattern).clone() {
             Expr::Wildcard => Ok(true),
+            Expr::Parenthesized { expr } => self.matches_pattern(
+                value,
+                ExprRef {
+                    module: pattern.module,
+                    expr,
+                },
+                env,
+            ),
             Expr::ArrayConstraint { .. }
             | Expr::CompareConstraint { .. }
             | Expr::RegexConstraint(_)
@@ -2043,6 +2058,13 @@ mod tests {
         assert_eq!(fields[4].value, Data::Int(-2));
     }
 
+    #[test]
+    fn parenthesized_wildcard_remains_a_match_pattern() {
+        let data = eval_data("result = match 1 { (_): 2; };");
+        let Data::Object(fields) = data else { panic!() };
+        assert_eq!(fields[0].value, Data::Int(2));
+    }
+
     #[test]
     fn arithmetic_can_feed_constraints() {
         let data = eval_data("port = Int & > 4000 + 42 default 8080;");

crates/decodal-core/src/lexer.rs

@@ -52,9 +52,25 @@ pub enum TokenKind {
     Gte,
     Lt,
     Lte,
+    /// A line comment, including its leading `#` and excluding its newline.
+    Comment,
     Eof,
 }
 
+/// Tokenizes source while retaining comments and source spans for tooling.
+///
+/// Whitespace remains available through the gaps between adjacent token spans,
+/// making this a lossless syntax view when paired with the original source.
+pub fn tokenize_source(source: &str) -> Result<Vec<Token>> {
+    tokenize_source_with_source_id(SourceId(0), source)
+}
+
+/// Tokenizes source with a caller-provided source identifier while retaining
+/// comments and source spans for tooling.
+pub fn tokenize_source_with_source_id(source_id: SourceId, source: &str) -> Result<Vec<Token>> {
+    Lexer::with_source_id(source_id, source).tokenize_with_comments()
+}
+
 pub struct Lexer<'a> {
     source_id: SourceId,
     source: &'a str,
@@ -78,10 +94,26 @@ impl<'a> Lexer<'a> {
     }
 
     pub fn tokenize(mut self) -> Result<Vec<Token>> {
+        self.tokenize_impl(false)
+    }
+
+    fn tokenize_with_comments(mut self) -> Result<Vec<Token>> {
+        self.tokenize_impl(true)
+    }
+
+    fn tokenize_impl(&mut self, include_comments: bool) -> Result<Vec<Token>> {
         let mut tokens = Vec::new();
         let mut previous = None;
         loop {
-            let token = self.next_token(previous.as_ref())?;
+            self.skip_whitespace();
+            if self.peek() == Some(b'#') {
+                let comment = self.lex_comment();
+                if include_comments {
+                    tokens.push(comment);
+                }
+                continue;
+            }
+            let token = self.next_non_ws_token(previous.as_ref())?;
             let is_eof = token.kind == TokenKind::Eof;
             if !is_eof {
                 previous = Some(token.kind.clone());
@@ -93,11 +125,6 @@ impl<'a> Lexer<'a> {
         }
     }
 
-    fn next_token(&mut self, previous: Option<&TokenKind>) -> Result<Token> {
-        self.skip_ws_and_comments();
-        self.next_non_ws_token(previous)
-    }
-
     fn next_non_ws_token(&mut self, previous: Option<&TokenKind>) -> Result<Token> {
         let start = self.pos;
         let Some(ch) = self.peek() else {
@@ -259,21 +286,23 @@ impl<'a> Lexer<'a> {
         })
     }
 
-    fn skip_ws_and_comments(&mut self) {
+    fn skip_whitespace(&mut self) {
-        loop {
         while matches!(self.peek(), Some(b' ' | b'\t' | b'\r' | b'\n')) {
             self.pos += 1;
         }
-            if self.peek() == Some(b'#') {
+    }
+
+    fn lex_comment(&mut self) -> Token {
+        let start = self.pos;
         while let Some(c) = self.peek() {
-                    self.pos += 1;
             if c == b'\n' {
                 break;
             }
+            self.pos += 1;
         }
-                continue;
+        Token {
-            }
+            kind: TokenKind::Comment,
-            break;
+            span: self.span(start, self.pos),
         }
     }
 
@@ -453,4 +482,30 @@ mod tests {
         assert!(matches!(tokens[2].kind, TokenKind::Ident(_)));
         assert_eq!(tokens[3].kind, TokenKind::RBracket);
     }
+
+    #[test]
+    fn tooling_tokens_retain_comments_and_whitespace_gaps() {
+        let source = "value = 1; # trailing\n\n# leading\nnext = 2;";
+        let tokens = tokenize_source(source).unwrap();
+        let comments = tokens
+            .iter()
+            .filter(|token| token.kind == TokenKind::Comment)
+            .collect::<Vec<_>>();
+        assert_eq!(comments.len(), 2);
+        assert_eq!(
+            &source[comments[0].span.start as usize..comments[0].span.end as usize],
+            "# trailing"
+        );
+        assert!(
+            source[comments[0].span.end as usize..comments[1].span.start as usize].contains("\n\n")
+        );
+
+        let source_id = SourceId(7);
+        let identified = tokenize_source_with_source_id(source_id, "# comment").unwrap();
+        assert!(
+            identified
+                .iter()
+                .all(|token| token.span.source == source_id)
+        );
+    }
 }

crates/decodal-core/src/lib.rs

@@ -23,6 +23,10 @@ pub use diagnostic::{Diagnostic, DiagnosticKind, Result};
 pub use embedding::{HostField, HostValue};
 pub use environment::HostEnvironment;
 pub use eval::{Engine, format_diagnostic_with};
+pub use lexer::{
+    Token as SyntaxToken, TokenKind as SyntaxTokenKind, tokenize_source,
+    tokenize_source_with_source_id,
+};
 pub use module::{
     EmptyLoader, ImportCandidate, ImportLoader, LoadedImport, LoadedSource, LoadedValue, Module,
 };

crates/decodal-core/src/parser.rs

@@ -38,7 +38,10 @@ pub struct Parser {
 impl Parser {
     pub fn new(tokens: Vec<Token>) -> Self {
         Self {
-            tokens,
+            tokens: tokens
+                .into_iter()
+                .filter(|token| token.kind != TokenKind::Comment)
+                .collect(),
             pos: 0,
             ast: Ast::new(),
         }
@@ -380,8 +383,9 @@ impl Parser {
         }
 
         let expr = self.parse_expr(0)?;
-        self.expect_kind(&TokenKind::RParen, "expected ')' after expression")?;
+        let end_span = self.expect_kind(&TokenKind::RParen, "expected ')' after expression")?;
-        Ok(expr)
+        let span = start_span.join(end_span);
+        Ok(self.ast.push(Expr::Parenthesized { expr }, span))
     }
 
     fn parse_params_after_lparen(&mut self) -> Result<Vec<Param>> {
@@ -692,7 +696,24 @@ mod tests {
         let Expr::ArrayConstraint { item } = parsed.ast.get(parsed.root).expr else {
             panic!()
         };
-        assert!(matches!(parsed.ast.get(item).expr, Expr::Binary { .. }));
+        let Expr::Parenthesized { expr } = parsed.ast.get(item).expr else {
+            panic!()
+        };
+        assert!(matches!(parsed.ast.get(expr).expr, Expr::Binary { .. }));
+        assert_eq!(parsed.ast.span(item), Span::new(SourceId(0), 4, 22));
+    }
+
+    #[test]
+    fn parser_accepts_the_public_lossless_token_stream() {
+        let tokens = crate::tokenize_source("value = (# note\n 1);").unwrap();
+        let parsed = Parser::new(tokens).parse().unwrap();
+        let Expr::Object(fields) = &parsed.ast.get(parsed.root).expr else {
+            panic!()
+        };
+        assert!(matches!(
+            parsed.ast.get(fields[0].value).expr,
+            Expr::Parenthesized { .. }
+        ));
     }
 
     #[test]

crates/decodal-language-tools/Cargo.toml

@@ -7,7 +7,7 @@ license.workspace = true
 repository.workspace = true
 readme.workspace = true
 description = "Source-level language tooling for Decodal."
-keywords = ["decodal", "formatter", "lsp", "tree-sitter"]
+keywords = ["decodal", "formatter", "lsp", "language-tools"]
 categories = ["development-tools", "text-processing"]
 
 [lib]
@@ -16,8 +16,6 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 decodal = { version = "0.1.3", path = "../decodal-core" }
 serde_json.workspace = true
-tree-sitter = "0.22.6"
-tree-sitter-decodal = { version = "0.1.0", path = "../../editors/tree-sitter-decodal" }
 wasm-bindgen.workspace = true
 
 [package.metadata.wasm-pack.profile.release]

doc/manual/souce/components.md

@@ -58,10 +58,11 @@ The default `decodal-lsp` binary reads Decodal imports from the filesystem.
 Embedded hosts can call its library entry point with a custom `LspEnvironment` to reuse structured imports and to make unsaved external documents, such as Markdown, visible to the loader.
 
 Source formatting lives in a separate Rust language tools crate.
-Keeping it separate prevents host-specific semantic services from inheriting the formatter's Tree-sitter and WebAssembly dependencies.
+It uses the canonical Decodal AST together with the runtime lexer's lossless syntax tokens, so native LSP and WebAssembly callers execute the same formatter implementation.
 
 This component is responsible for operations that must preserve source text details such as comments and whitespace.
 It is used by the CodeMirror package's bundled formatter WebAssembly and can also be used by an LSP adapter for formatting.
+It does not depend on Tree-sitter or Lezer.
 
 Important paths:
 
@@ -74,7 +75,7 @@ The current language tools crate exposes the formatter.
 ## Web editor components
 
 The Web playground editor uses CodeMirror 6 with a generated Lezer parser.
-This is the source of syntax highlighting, folding, indentation, editor syntax tree behavior, and the browser formatter command in the browser UI.
+Lezer provides syntax highlighting, folding, indentation, and editor syntax tree behavior. The browser formatter command calls the canonical Rust formatter compiled to WebAssembly.
 
 Important paths:
 
@@ -120,18 +121,20 @@ doc/manual/souce/language/grammar.md
 This EBNF is the language-level reference.
 The Rust parser, Lezer grammar, and Tree-sitter grammar should be kept aligned with it, but each implementation may encode precedence and recovery behavior in the form required by its parser generator or runtime.
 
-## What is not a public component
+## Syntax token API
 
-The Rust lexer is an implementation detail of the Rust parser.
+The `decodal` crate exposes `tokenize_source`, `tokenize_source_with_source_id`, `SyntaxToken`, and `SyntaxTokenKind` for source-preserving tooling.
-Decodal does not expose a standalone public tokenizer API for editor tooling.
+Comments have explicit tokens, while whitespace is represented by gaps between token spans and can be recovered from the original source.
-Consumers that need syntax information should use the component that matches their environment:
+The evaluator parser and formatter therefore share one lexical definition without making Tree-sitter an upstream dependency.
+
+Consumers should otherwise use the component matching their environment:
 
 - Rust execution and embedding: `decodal`
 - Browser execution: `decodal-wasm`
-- Web formatting and editor syntax: Lezer / CodeMirror
+- Web formatting and editor syntax: canonical formatter / CodeMirror / Lezer
 - Semantic editor analysis: `decodal-language-service`
 - Language Server Protocol integration: `decodal-lsp`
 - Rust formatting: `decodal-language-tools`
 - General editor syntax: Tree-sitter
 
-This avoids having a separate token stream API whose behavior would have to be kept compatible with both runtime parsing and editor grammars.
+Tree-sitter and Lezer remain downstream editor grammars and are not dependencies of the runtime formatter.

doc/manual/souce/development.md

@@ -34,33 +34,13 @@ cargo run -q -p decodal-cli --features regex -- examples/regex/main.dcdl
 
 ## crates.io release
 
-The primary crates.io package is `decodal`, which contains the embeddable library.
+The crates.io release contains `decodal`, `decodal-derive`, `decodal-language-service`, `decodal-language-tools`, and `decodal-lsp`.
-`decodal-derive` provides optional derive macros for Rust struct integration and is published only when the derive crate changes.
+`decodal-cli` and the Rust source crate `decodal-wasm` remain repository-only packages.
-Workspace support crates such as `decodal-cli`, the Rust source crate `decodal-wasm`, `decodal-language-tools`, and `decodal-lsp` are not published to crates.io.
 The generated WebAssembly package under `packages/decodal-wasm/` is published to npm and JSR.
 The CodeMirror package bundles the generated formatter WebAssembly from `decodal-language-tools`.
 The project is dual licensed as `MIT OR Apache-2.0`.
 
-```sh
+The authoritative validation commands, dependency order, and publish commands are maintained in `RELEASING.md` at the repository root.
-cargo publish -p decodal
-```
-
-Publish `decodal-derive` first only when that crate has a new version:
-
-```sh
-cargo publish -p decodal-derive
-```
-
-Before publishing, run:
-
-```sh
-cargo fmt --check
-cargo test
-cargo check -p decodal --no-default-features
-cargo publish -p decodal --dry-run
-```
-
-If `decodal-derive` changed, also run `cargo publish -p decodal-derive --dry-run`.
 
 ## Web site and playground
 
@@ -125,7 +105,6 @@ npx jsr publish --dry-run
 
 The npm package name is `decodal-wasm`.
 The JSR package name is `@hare/decodal-wasm`.
-JSR currently expects a single SPDX license identifier in `jsr.json`; the WebAssembly package metadata uses `MIT` while the Rust workspace remains dual licensed as `MIT OR Apache-2.0`.
 
 The playground editor uses the `decodal-codemirror` package with the generated Lezer parser in `packages/decodal-codemirror/src/decodal-parser.js`.
 The canonical grammar is documented in `doc/manual/souce/language/grammar.md`; regenerate the Lezer parser when that grammar or `editors/lezer-decodal/decodal.grammar` changes.
@@ -149,7 +128,6 @@ npx jsr publish --dry-run
 
 The npm package name is `decodal-codemirror`.
 The JSR package name is `@hare/decodal-codemirror`.
-JSR currently expects a single SPDX license identifier in `jsr.json`; the CodeMirror package metadata uses `MIT` while the Rust workspace remains dual licensed as `MIT OR Apache-2.0`.
 
 The documentation build still uses the lightweight JavaScript fallback highlighter so Astro can render Markdown without initializing WASM at build time.
 

editors/tree-sitter-decodal/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "tree-sitter-decodal"
 description = "Decodal grammar for tree-sitter"
-version = "0.1.0"
+version = "0.0.1"
 license = "MIT"
 readme = "README.md"
 keywords = ["incremental", "parsing", "tree-sitter", "decodal"]

packages/decodal-codemirror/LICENSE-APACHE

@@ -0,0 +1,173 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
+   and distribution as defined by Sections 1 through 9 of this document.
+
+   "Licensor" shall mean the copyright owner or entity authorized by
+   the copyright owner that is granting the License.
+
+   "Legal Entity" shall mean the union of the acting entity and all
+   other entities that control, are controlled by, or are under common
+   control with that entity. For the purposes of this definition,
+   "control" means (i) the power, direct or indirect, to cause the
+   direction or management of such entity, whether by contract or
+   otherwise, or (ii) ownership of fifty percent (50%) or more of the
+   outstanding shares, or (iii) beneficial ownership of such entity.
+
+   "You" (or "Your") shall mean an individual or Legal Entity
+   exercising permissions granted by this License.
+
+   "Source" form shall mean the preferred form for making modifications,
+   including but not limited to software source code, documentation
+   source, and configuration files.
+
+   "Object" form shall mean any form resulting from mechanical
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+       distribution, then any Derivative Works that You distribute must
+       include a readable copy of the attribution notices contained
+       within such NOTICE file, excluding those notices that do not
+       pertain to any part of the Derivative Works, in at least one
+       of the following places: within a NOTICE text file distributed
+       as part of the Derivative Works; within the Source form or
+       documentation, if provided along with the Derivative Works; or,
+       within a display generated by the Derivative Works, if and
+       wherever such third-party notices normally appear. The contents
+       of the NOTICE file are for informational purposes only and
+       do not modify the License. You may add Your own attribution
+       notices within Derivative Works that You distribute, alongside
+       or as an addendum to the NOTICE text from the Work, provided
+       that such additional attribution notices cannot be construed
+       as modifying the License.
+
+   You may add Your own copyright statement to Your modifications and
+   may provide additional or different license terms and conditions
+   for use, reproduction, or distribution of Your modifications, or
+   for any such Derivative Works as a whole, provided Your use,
+   reproduction, and distribution of the Work otherwise complies with
+   the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+   any Contribution intentionally submitted for inclusion in the Work
+   by You to the Licensor shall be under the terms and conditions of
+   this License, without any additional terms or conditions.
+
+6. Trademarks. This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of the Licensor,
+   except as required for reasonable and customary use in describing the
+   origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+   agreed to in writing, Licensor provides the Work (and each
+   Contributor provides its Contributions) on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied, including, without limitation, any warranties or conditions
+   of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+   PARTICULAR PURPOSE. You are solely responsible for determining the
+   appropriateness of using or redistributing the Work and assume any
+   risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+   whether in tort (including negligence), contract, or otherwise,
+   unless required by applicable law (such as deliberate and grossly
+   negligent acts) or agreed to in writing, shall any Contributor be
+   liable to You for damages, including any direct, indirect, special,
+   incidental, or consequential damages of any character arising as a
+   result of this License or out of the use or inability to use the
+   Work (including but not limited to damages for loss of goodwill,
+   work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses), even if such Contributor
+   has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+   the Work or Derivative Works thereof, You may choose to offer,
+   and charge a fee for, acceptance of support, warranty, indemnity,
+   or other liability obligations and/or rights consistent with this
+   License. However, in accepting such obligations, You may act only
+   on Your own behalf and on Your sole responsibility, not on behalf
+   of any other Contributor, and only if You agree to indemnify,
+   defend, and hold each Contributor harmless for any liability
+   incurred by, or claims asserted against, such Contributor by reason
+   of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS

packages/decodal-codemirror/LICENSE-MIT

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Decodal contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

packages/decodal-codemirror/jsr.json

@@ -1,7 +1,7 @@
 {
   "name": "@hare/decodal-codemirror",
-  "version": "0.1.5",
+  "version": "0.1.6",
-  "license": "MIT",
+  "license": "MIT OR Apache-2.0",
   "exports": {
     ".": "./src/mod.ts",
     "./format": "./src/format.ts"
@@ -15,6 +15,8 @@
   "publish": {
     "include": [
       "README.md",
+      "LICENSE-MIT",
+      "LICENSE-APACHE",
       "src/mod.ts",
       "src/format.ts",
       "src/decodal.js",

packages/decodal-codemirror/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "decodal-codemirror",
-  "version": "0.1.5",
+  "version": "0.1.6",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "decodal-codemirror",
-      "version": "0.1.5",
+      "version": "0.1.6",
       "license": "MIT OR Apache-2.0",
       "devDependencies": {
         "@codemirror/language": "^6.12.4",

packages/decodal-codemirror/package.json

@@ -1,6 +1,6 @@
 {
   "name": "decodal-codemirror",
-  "version": "0.1.5",
+  "version": "0.1.6",
   "description": "CodeMirror 6 language support for Decodal.",
   "type": "module",
   "license": "MIT OR Apache-2.0",
@@ -28,6 +28,8 @@
   "types": "./src/decodal.d.ts",
   "files": [
     "README.md",
+    "LICENSE-MIT",
+    "LICENSE-APACHE",
     "src/",
     "wasm/decodal_language_tools.js",
     "wasm/decodal_language_tools.d.ts",

packages/decodal-codemirror/src/format.test.mjs

@@ -0,0 +1,16 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { readFile } from 'node:fs/promises';
+
+import { formatDecodal, initDecodalFormatter } from './format.js';
+
+const wasmPath = new URL('../wasm/decodal_language_tools_bg.wasm', import.meta.url);
+
+test('WASM uses the canonical formatter and is idempotent', async () => {
+  await initDecodalFormatter({ module_or_path: await readFile(wasmPath) });
+  const source = 'Server={\n# host\nhost=String default "localhost"; # trailing\n\nport=Int&>0;\n};';
+  const expected = 'Server = {\n    # host\n    host = String default "localhost"; # trailing\n\n    port = Int & > 0;\n};\n';
+
+  assert.deepEqual(formatDecodal(source), { ok: true, source: expected });
+  assert.deepEqual(formatDecodal(expected), { ok: true, source: expected });
+});

packages/decodal-codemirror/src/format.ts

@@ -1,8 +1,8 @@
 /**
  * Decodal source formatting helpers for CodeMirror integrations.
  *
- * The formatter is backed by WebAssembly generated from the internal Rust
+ * The formatter is backed by WebAssembly generated from the canonical Rust
- * `decodal-language-tools` crate. Call {@link initDecodalFormatter} once before
+ * `decodal-language-tools` formatter. Call {@link initDecodalFormatter} once before
  * using {@link formatDecodal} or {@link formatDecodalCommand}.
  *
  * @module

site/decodal-site/package-lock.json

@@ -25,7 +25,7 @@
       }
     },
     "../../packages/decodal-codemirror": {
-      "version": "0.1.5",
+      "version": "0.1.6",
       "license": "MIT OR Apache-2.0",
       "devDependencies": {
         "@codemirror/language": "^6.12.4",

site/decodal-site/scripts/prepare-codemirror-wasm.mjs

@@ -1,7 +1,11 @@
-import { rmSync, writeFileSync } from 'node:fs';
+import { copyFileSync, rmSync, writeFileSync } from 'node:fs';
 import { resolve } from 'node:path';
 
 const wasmDir = resolve(import.meta.dirname, '../../../packages/decodal-codemirror/wasm');
+const packageDir = resolve(wasmDir, '..');
+
+copyFileSync(resolve(packageDir, '../../LICENSE-MIT'), resolve(packageDir, 'LICENSE-MIT'));
+copyFileSync(resolve(packageDir, '../../LICENSE-APACHE'), resolve(packageDir, 'LICENSE-APACHE'));
 
 rmSync(resolve(wasmDir, 'README.md'), { force: true });
 rmSync(resolve(wasmDir, 'package.json'), { force: true });

site/decodal-site/src/pages/index.astro

@@ -33,7 +33,7 @@ Production = Server & {
     </a>
     <ul class="package-list">
       <li>decodal-wasm on <a href="https://jsr.io/@hare/decodal-wasm@0.1.4">jsr</a> / <a href="https://www.npmjs.com/package/decodal-wasm">npm</a></li>
-      <li>decodal-codemirror on <a href="https://jsr.io/@hare/decodal-codemirror@0.1.5">jsr</a> / <a href="https://www.npmjs.com/package/decodal-codemirror">npm</a></li>
+      <li>decodal-codemirror on <a href="https://jsr.io/@hare/decodal-codemirror@0.1.6">jsr</a> / <a href="https://www.npmjs.com/package/decodal-codemirror">npm</a></li>
     </ul>
   </section>