web-tree-sitter

0.27.1 · 8 Oct 2026MIT4.8M / weekRepository Homepage npm Atom feed

Latest releases

0.27.x · latest line
0.27.1
8 Oct 2026
- breaking
  cli: fix query test capture range matching across lines
- decode UTF-16 surrogate pairs with input endianness
- rust: address new nightly lints
What's Changed
decode UTF-16 surrogate pairs with input endianness
breaking
cli: fix query test capture range matching across lines
rust: address new nightly lints
generate: resolve token names in debug output
generate: keep GCC jump tables enabled for large lexers
generate: exclude external word tokens from keyword extraction
lib: check shifted stack versions during error recovery
generate: detect indirect recursion in flattened productions
preserve column dependency when balancing repeat nodes
lib: acquire capture lists from a free stack instead of scanning
build: don't compile the Wasm stdlib into Emscripten builds
various query issues
rust: ban std::fs::canonicalize
bindings: load Node bindings under Bun again
release v0.27.1
0.27.0
30 Aug 2026
- breaking
  rust: return u32 from Node::child_count
- breaking
  highlight: utf16 support
- breaking
  rust: change ts_set_allocator to accept one optional Allocator object rather than 4 separate optional function pointers.
What's Changed
start working on v0.27
docs: remove conflicting --release cargo flag in contributing.md
cli: trailing whitespace after multiline text nodes in CST
cli: correct discrepancy with cst for --no-ranges
Fix Playground Query
cli: cst printing improvements
cli: set language in cwd for all usages of highlight command
cli: concurrent builds of the same grammar on different locations on disk
cli: canonicalize build --output path
cli: make test --update rewrite all corpus files
cli: increase verbosity of tree-sitter init -u updates
cli: restore test summary output for tree-sitter test
wasm: add some common used defs to wasm stdlib
wasm: update wasm-stdlib.h
Fix python free-threading compatibility
build: define _BSD_SOURCE
docs: appease clippy regarding spacing in README
wasm: regenerate stdlib with wasm-opt
Clarify lifetime parameters; Rust 2018 idioms
free memory automatically
cli: warn user when nm can't be run to verify the symbols inside the parser being built
ci: ensure wasm-stdlib.h is regenerated when wasm stdlib source files are modified
wasm: give binaryen the wasi-sdk treatment
loader: search correct cache directory for wasi-sdk clang
Fix tree-sitter-ruby crate failing to build to Wasm
wasm: add iswpunct to stdlib
lib: address strict aliasing violations with Array type
misc Windows fixes
wasm: correct several bugs in realloc
ci: add wasm-stdlib.h to cache key
generate: error if a supertype is defined as a terminal
Action overflow
wasm: don't wasm-opt twice
loader: account for nm/ld fix on newer powerpc linux toolchains
wasm: fix realloc optimization
cli: use --edits value for fuzz tests
cli: add --verbose flag to build command
rust: bump language crate version
rust: place std::env::set_var inside unsafe blocks
lib: correct ts_parser_parse docstring
test: acquire lock before downloading wasm tools
cli: allow for both debug logs and graphs
lib: clean up strict aliasing fixes in array.h
cli: require tree-sitter CLI in CMake template
breaking
rust: return u32 from Node::child_count
allow - in grammar names
query: prevent cross-branch capture contamination in alternations with quantifiers
web: add default export to CJS bundle
rust: edition 2024, MSRV 1.90, lint cleanup, and dep updates
breaking
highlight: utf16 support
use provided by RedoxOS byte orders implementations
generate: unsafe extern -> extern in rendered C parser
lib: cast NULL in ts_subtree_children macro
cli(init): fix Package.swift scanner detection when used as a dependency
wasm: update wasi-sdk and binaryen
loader: invalidate cached wasm toolchains on version mismatch
cli: init -u fixes
cli(init): extract per-binding generators and named update functions
skip missing Makefile in version command
wasm: pass target triple to clang
generate: optimize TokenSet
Propose fix some typos
loader: link with libc on OpenBSD to compile parser
rust: remove unused dependencies from loader and lib
query: don't add copies for quantifier steps outside alternations
revert allowing dashes in parser name
loader: unconditionally import Mutex
generate: allow disabling qjs-rt feature from CLI
lib: document invariants that must be upheld for TSInputEdit
parser: use LookaheadIterator in error recovery's all-symbol scan
misc. clippy and typo fixes
parser: sort error recovery reductions for deterministic ordering
cli: misc. improvements
Fix wasm loading of languages w/ multiple reserved word sets
loader: don't discard CC wrapper command specified in CC variable
generate: avoid panicking when a supertype only has hidden external token children
cli: replace regex with manual parsing in test file parser PLUS loader lock file rewrite
generate: don't require tree-sitter.json for ABI 15
ci: include wasi-sdk and binaryen version files in fixture cache hash
generate: More optimizations
update broken link to Parser.Language in template
update parser template to zig 0.16
loader: allow filenames with dots
generate: pass default optimization level in generate_parser_for_grammar
Prevent a buffer over-read when parsing 4-byte UTF-16 characters.
Add Solaris support to the portable endian header
query: overflow in capture pool ids + some perf
wasm: add Language.loadSync for synchronous loading
cli: account for process versions > 5 in the parse command's pretty debug output.
Validate Wasm language memory reads
generate: improve error message for nonterminals used in immediate token rule
generate: rewrite parse_grammar with forward DFS
test: write fixture headers once
wasm: load supertype tables for ABI 15 grammars
test: restore corpus test header blank line and divider tie behavior
cli: place generate artifacts next to grammar file rather than cwd
lib: update doc comment for ts_parser_parse
lib: use correct TREE_SITTER_HIDE_SYMBOLS macro name in alloc.h
generate: derive Deserialize on GenerateError and all subtypes
cli: improve soundness of cst range calculation
rewrite ts_subtree__write_to_string iteratively
loader: skip --no-undefined for sanitizer grammar builds
cli: infinite loop in highlight test
lib: Consider subtree lookahead bytes when determining whether the parser can reuse a node.
bindings: defer importlib.resources import in python template
add DESCRIPTION to grammar Makefile template
cli: display warning to user if parser test corpus dir isn't found
cli: warn user for various malformed tests
docs: explicitly warn against aliasing supertypes
rust: more clippy fixes in generate
cli: highlight test did not properly check for spans on later rows
rust: use more accurate types for various IoError structs
feat(cli) tree-sitter test --show-diff-symbols
lib: address strict aliasing violations in TreeCursor type
dsl: forbid invalid field names
Clarify behavior of advance(..., skip) in external scanner docs
Update README.md
Fix issues with queries matching a parent node with anchored children (siblings)
Add ts_query_copy for cloning queries
generate: collect warnings as structured data
breaking
rust: change ts_set_allocator to accept one optional Allocator object rather than 4 separate optional function pointers.
xtask: eliminate silent errors in zig fetch
query: short-circuit longest-match dedup for disjoint states
query: various anchor fixes
improve error message and docs for supertypes made invalid by hidden children
Fix C++ compilation errors in array macros.
rust: address new clippy lints
breaking
cli: don't load all languages via config when lib path is passed
generate: strip non-ASCII case folds
templates: update setup.py & Package.swift
ci: re-set executable permission on release artifacts before zipping
web: expand Language::load to accept URL filepath
breaking
highlight: include underlying LanguageError in highlight and tag crates' error enums
Fix broken url
generate: only strip case-folded ſ/K when the /i flag is set
cli: init --update should not update setup.py after replacing it
query: keep the trailing anchor when a zero-matched quantifier is anchored on both sides
init: don't lowercase repository url
breaking
cli: make parents flags a hard requirements via clap
highlight: use std::sync::OnceCell for various loader fields
breaking
rust: require parser loggers to be Send + 'static
breaking
cli: rework HTML output modes in highlight
parser: restart recovery for invalid tokens in the error state
Fix associativity resolution with mixed shift precedences
breaking
rust: tie query iterators to options lifetime
Expose OptLevel on generate_parser_for_grammar
parser: fix parsing bug repeat operator
generate: embrace data oriented design
query: correctly identify MISSING nodes in queries
test: allow corpus tests to use cst outputs
query: correctly set a state's skipped_quantifier flag when a
rust: trim unused imports
lib: add state to missing nodes
generate: fold case-insensitive patterns at the AST leaves
breaking
generate: error on invalid byte class patterns
breaking
lib: rework LookaheadIterator
parser: avoid wide error nodes on unparseable input
breaking
swift: drop Package.swift
lib: fast paths for ascii
Allow using Tree-sitter rust lib in multi-threaded web apps compiled to wasm32-unknown-unknown
generate: refactor node_types JSON generation logic
ci: run all workspace tests
Upgrade to latest wasmtime, improve robustness and perf of wasm-based parsing
breaking
generate: error when nonexistent file path is passed to generate_parser_in_directory.
breaking
add an eof function
rust: remove must_use attribute from Tree::changed_ranges
generate: further node-types.json cleanup
generate: use a single buffer for the string pool's backing store
cli: align GrammarSchema type with grammar() return value
playground: set LANGUAGE_BASE_URL to "." to fix subfolder hosting
web: map Node-only specifiers to false via browser field
cli: correct zero-based positions for --edits
various memory safety issues
Remove Dockerfile mention from flake.nix
0.26.x · maintenance
0.26.13
23 Aug 2026
- query: correctly identify MISSING nodes in queries
- query: correctly set a state's skipped_quantifier flag when a
- generate: fold case-insensitive patterns at the AST leaves
What's Changed
query: correctly identify MISSING nodes in queries
query: correctly set a state's skipped_quantifier flag when a
generate: fold case-insensitive patterns at the AST leaves
parser: avoid wide error nodes on unparseable input
ci: run all workspace tests
rust: remove must_use attribute from Tree::changed_ranges
release v0.26.13
0.26.12
8 Aug 2026
- generate: fold case-insensitive patterns ourselves
- query: keep the trailing anchor when a zero-matched quantifier is anchored on both sides
- templates: add C source files to Python sdist
What's Changed
generate: fold case-insensitive patterns ourselves
query: keep the trailing anchor when a zero-matched quantifier is anchored on both sides
templates: add C source files to Python sdist
init: don't lowercase repository url
highlight: use std::sync::OnceCell for various loader fields
parser: restart recovery for invalid tokens in the error state
Fix associativity resolution with mixed shift precedences
parser: fix parsing bug repeat operator
release v0.26.12
0.26.11
12 Jul 2026

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Registry facts last checked 22 Oct 2026. Releases and advisories last read 22 Oct 2026.

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