Add cairo syntax + queries

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.{json,toml,yml,gyp}]
+indent_style = space
+indent_size = 2
+
+[*.js]
+indent_style = space
+indent_size = 2
+
+[*.rs]
+indent_style = space
+indent_size = 4
+
+[*.{c,cc,h}]
+indent_style = space
+indent_size = 4
+
+[*.{py,pyi}]
+indent_style = space
+indent_size = 4
+
+[*.swift]
+indent_style = space
+indent_size = 4
+
+[*.go]
+indent_style = tab
+indent_size = 8
+
+[Makefile]
+indent_style = tab
+indent_size = 8

.gitattributes

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+* text eol=lf
+
+src/*.json linguist-generated
+src/parser.c linguist-generated
+src/tree_sitter/* linguist-generated
+
+bindings/** linguist-generated
+binding.gyp linguist-generated
+setup.py linguist-generated
+Makefile linguist-generated
+Package.swift linguist-generated

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: ["*"]
+    paths:
+      - grammar.js
+      - src/**
+      - test/**
+      - bindings/**
+      - binding.gyp
+  pull_request:
+    paths:
+      - grammar.js
+      - src/**
+      - test/**
+      - bindings/**
+      - binding.gyp
+
+concurrency:
+  group: ${{github.workflow}}-${{github.ref}}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Test parser
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-14]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up tree-sitter
+        uses: tree-sitter/setup-action/cli@v1
+      - name: Set up examples
+        run: |-
+          git clone https://github.com/starkware-libs/cairo examples/compiler --single-branch --depth=1 --filter=blob:none
+          git clone https://github.com/OpenZeppelin/cairo-contracts examples/openzeppelin --single-branch --depth=1 --filter=blob:none
+          git clone https://github.com/keep-starknet-strange/alexandria examples/alexandria --single-branch --depth=1 --filter=blob:none
+      - name: Run tests
+        uses: tree-sitter/parser-test-action@v2
+        with:
+          test-rust: ${{runner.os == 'Linux'}}
+      - name: Parse examples
+        uses: tree-sitter/parse-action@v4
+        with:
+          files: examples/**/*.cairo
+          invalid-files: examples/compiler/crates/cairo-lang-parser/src/parser_test_data/cairo_test_files/*.cairo

.github/workflows/fuzz.yml

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+name: Fuzz Parser
+
+on:
+  push:
+    branches: [master]
+    paths:
+      - src/scanner.c
+  pull_request:
+    paths:
+      - src/scanner.c
+
+jobs:
+  fuzz:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Run fuzzer
+        uses: tree-sitter/fuzz-action@v4
+        with:
+          tree-sitter-version: v0.22.2

.github/workflows/lint.yml

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+name: Lint
+
+on:
+  push:
+    branches: [master]
+    paths:
+      - grammar.js
+  pull_request:
+    paths:
+      - grammar.js
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          cache: npm
+      - name: Install modules
+        run: npm ci --legacy-peer-deps
+      - name: Run ESLint
+        run: npm run lint

.gitignore

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+# Rust artifacts
+Cargo.lock
+target/
+
+# Node artifacts
+build/
+prebuilds/
+node_modules/
+*.tgz
+
+# Swift artifacts
+.build/
+
+# Go artifacts
+go.sum
+_obj/
+
+# Python artifacts
+.venv/
+dist/
+*.egg-info
+*.whl
+
+# C artifacts
+*.a
+*.so
+*.so.*
+*.dylib
+*.dll
+*.pc
+
+# Example dirs
+/examples/*/
+
+# Grammar volatiles
+*.wasm
+*.obj
+*.o

Cargo.toml

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+[package]
+name = "tree-sitter-cairo"
+description = "Cairo grammar for tree-sitter"
+version = "0.0.1"
+license = "MIT"
+readme = "README.md"
+keywords = ["incremental", "parsing", "tree-sitter", "cairo"]
+categories = ["parsing", "text-editors"]
+repository = "https://github.com/tree-sitter/tree-sitter-cairo"
+edition = "2021"
+autoexamples = false
+
+build = "bindings/rust/build.rs"
+include = ["bindings/rust/*", "grammar.js", "queries/*", "src/*"]
+
+[lib]
+path = "bindings/rust/lib.rs"
+
+[dependencies]
+tree-sitter = ">=0.22.6"
+
+[build-dependencies]
+cc = "1.0.87"