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https://github.com/tree-sitter/zig-tree-sitter

Zig bindings to the Tree-sitter parsing library
https://github.com/tree-sitter/zig-tree-sitter

Last synced: 9 months ago
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Zig bindings to the Tree-sitter parsing library

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# Zig Tree-sitter

[![CI][ci]](https://github.com/tree-sitter/zig-tree-sitter/actions/workflows/ci.yml)
[![docs][docs]](https://tree-sitter.github.io/zig-tree-sitter/)

Zig bindings to the [tree-sitter] parsing library.

## Usage

build.zig

```zig
const std = @import("std");

pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});

const exe = b.addExecutable(.{
.name = "zig-tree-sitter-usage",
.root_source_file = b.path("src/main.zig"),
.target = target,
.optimize = optimize,
});
b.installArtifact(exe);

const tree_sitter = b.dependency("tree_sitter", .{
.target = target,
.optimize = optimize,
});
exe.root_module.addImport("tree-sitter", tree_sitter.module("tree-sitter"));

const tree_sitter_zig = b.dependency("tree_sitter_zig", .{
.target = target,
.optimize = optimize,
});
exe.linkLibrary(tree_sitter_zig.artifact("tree-sitter-zig"));

const run_cmd = b.addRunArtifact(exe);
run_cmd.step.dependOn(b.getInstallStep());
const run_step = b.step("run", "Run the example");
run_step.dependOn(&run_cmd.step);
}
```

src/main.zig

```zig
const std = @import("std");
const ts = @import("tree-sitter");

extern fn tree_sitter_zig() callconv(.C) *ts.Language;

pub fn main() !void {
// Create a parser for the zig language
const language = tree_sitter_zig();
defer language.destroy();

const parser = ts.Parser.create();
defer parser.destroy();
try parser.setLanguage(language);

// Parse some source code and get the root node
const tree = try parser.parseBuffer("pub fn main() !void {}", null, null);
defer tree.destroy();

const node = tree.rootNode();
std.debug.assert(std.mem.eql(u8, node.type(), "source_file"));
std.debug.assert(node.endPoint().cmp(.{ .row = 0, .column = 22 }) == 0);

// Create a query and execute it
var error_offset: u32 = 0;
const query = try ts.Query.create(language, "name: (identifier) @name", &error_offset);
defer query.destroy();

const cursor = ts.QueryCursor.create();
defer cursor.destroy();
cursor.exec(query, node);

// Get the captured node of the first match
const match = cursor.nextMatch().?;
const capture = match.captures[0].node;
std.debug.assert(std.mem.eql(u8, capture.type(), "identifier"));
}
```

[tree-sitter]: https://tree-sitter.github.io/tree-sitter/
[ci]: https://img.shields.io/github/actions/workflow/status/tree-sitter/zig-tree-sitter/ci.yml?logo=github&label=CI
[docs]: https://img.shields.io/github/deployments/tree-sitter/zig-tree-sitter/github-pages?logo=zig&label=API%20Docs