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Add snippet crate
Co-Authored-By: Nathan Sobo <nathan@zed.dev> Co-Authored-By: Antonio Scandurra <me@as-cii.com>
This commit is contained in:
Max Brunsfeld
parent
d873786710
commit
956748e10c
18
Cargo.lock
generated
18
Cargo.lock
generated
@ -4418,6 +4418,16 @@ dependencies = [
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"pin-project-lite 0.1.12",
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]
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[[package]]
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name = "snippet"
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version = "0.1.0"
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dependencies = [
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"anyhow",
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"smallvec",
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"tree-sitter",
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"tree-sitter-snippet",
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]
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[[package]]
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name = "socket2"
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version = "0.3.19"
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@ -5203,6 +5213,14 @@ dependencies = [
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"tree-sitter",
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]
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[[package]]
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name = "tree-sitter-snippet"
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version = "0.0.1"
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dependencies = [
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"cc",
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"tree-sitter",
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]
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[[package]]
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name = "ttf-parser"
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version = "0.9.0"
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13
crates/snippet/Cargo.toml
Normal file
13
crates/snippet/Cargo.toml
Normal file
@ -0,0 +1,13 @@
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[package]
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name = "snippet"
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version = "0.1.0"
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edition = "2021"
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[lib]
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path = "src/snippet.rs"
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[dependencies]
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anyhow = "1.0"
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smallvec = { version = "1.6", features = ["union"] }
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tree-sitter = "0.20"
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tree-sitter-snippet = { path = "./grammar" }
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26
crates/snippet/grammar/Cargo.toml
Normal file
26
crates/snippet/grammar/Cargo.toml
Normal file
@ -0,0 +1,26 @@
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[package]
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name = "tree-sitter-snippet"
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description = "snippet grammar for the tree-sitter parsing library"
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version = "0.0.1"
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keywords = ["incremental", "parsing", "snippet"]
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categories = ["parsing", "text-editors"]
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repository = "https://github.com/tree-sitter/tree-sitter-snippet"
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edition = "2018"
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license = "MIT"
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build = "bindings/rust/build.rs"
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include = [
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"bindings/rust/*",
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"grammar.js",
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"queries/*",
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"src/*",
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]
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[lib]
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path = "bindings/rust/lib.rs"
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[dependencies]
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tree-sitter = "~0.20"
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[build-dependencies]
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cc = "1.0"
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19
crates/snippet/grammar/binding.gyp
Normal file
19
crates/snippet/grammar/binding.gyp
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@ -0,0 +1,19 @@
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{
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"targets": [
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{
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"target_name": "tree_sitter_snippet_binding",
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"include_dirs": [
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"<!(node -e \"require('nan')\")",
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"src"
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],
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"sources": [
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"bindings/node/binding.cc",
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"src/parser.c",
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# If your language uses an external scanner, add it here.
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],
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"cflags_c": [
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"-std=c99",
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]
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}
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]
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}
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28
crates/snippet/grammar/bindings/node/binding.cc
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28
crates/snippet/grammar/bindings/node/binding.cc
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@ -0,0 +1,28 @@
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#include "tree_sitter/parser.h"
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#include <node.h>
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#include "nan.h"
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using namespace v8;
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extern "C" TSLanguage * tree_sitter_snippet();
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namespace {
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NAN_METHOD(New) {}
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void Init(Local<Object> exports, Local<Object> module) {
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Local<FunctionTemplate> tpl = Nan::New<FunctionTemplate>(New);
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tpl->SetClassName(Nan::New("Language").ToLocalChecked());
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tpl->InstanceTemplate()->SetInternalFieldCount(1);
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Local<Function> constructor = Nan::GetFunction(tpl).ToLocalChecked();
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Local<Object> instance = constructor->NewInstance(Nan::GetCurrentContext()).ToLocalChecked();
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Nan::SetInternalFieldPointer(instance, 0, tree_sitter_snippet());
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Nan::Set(instance, Nan::New("name").ToLocalChecked(), Nan::New("snippet").ToLocalChecked());
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Nan::Set(module, Nan::New("exports").ToLocalChecked(), instance);
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}
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NODE_MODULE(tree_sitter_snippet_binding, Init)
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} // namespace
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19
crates/snippet/grammar/bindings/node/index.js
Normal file
19
crates/snippet/grammar/bindings/node/index.js
Normal file
@ -0,0 +1,19 @@
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try {
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module.exports = require("../../build/Release/tree_sitter_snippet_binding");
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} catch (error1) {
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if (error1.code !== 'MODULE_NOT_FOUND') {
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throw error1;
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}
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try {
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module.exports = require("../../build/Debug/tree_sitter_snippet_binding");
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} catch (error2) {
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if (error2.code !== 'MODULE_NOT_FOUND') {
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throw error2;
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}
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throw error1
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}
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}
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try {
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module.exports.nodeTypeInfo = require("../../src/node-types.json");
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} catch (_) {}
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40
crates/snippet/grammar/bindings/rust/build.rs
Normal file
40
crates/snippet/grammar/bindings/rust/build.rs
Normal file
@ -0,0 +1,40 @@
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fn main() {
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let src_dir = std::path::Path::new("src");
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let mut c_config = cc::Build::new();
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c_config.include(&src_dir);
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c_config
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.flag_if_supported("-Wno-unused-parameter")
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.flag_if_supported("-Wno-unused-but-set-variable")
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.flag_if_supported("-Wno-trigraphs");
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let parser_path = src_dir.join("parser.c");
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c_config.file(&parser_path);
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// If your language uses an external scanner written in C,
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// then include this block of code:
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/*
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let scanner_path = src_dir.join("scanner.c");
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c_config.file(&scanner_path);
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println!("cargo:rerun-if-changed={}", scanner_path.to_str().unwrap());
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*/
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c_config.compile("parser");
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println!("cargo:rerun-if-changed={}", parser_path.to_str().unwrap());
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// If your language uses an external scanner written in C++,
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// then include this block of code:
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/*
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let mut cpp_config = cc::Build::new();
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cpp_config.cpp(true);
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cpp_config.include(&src_dir);
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cpp_config
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.flag_if_supported("-Wno-unused-parameter")
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.flag_if_supported("-Wno-unused-but-set-variable");
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let scanner_path = src_dir.join("scanner.cc");
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cpp_config.file(&scanner_path);
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cpp_config.compile("scanner");
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println!("cargo:rerun-if-changed={}", scanner_path.to_str().unwrap());
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*/
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}
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52
crates/snippet/grammar/bindings/rust/lib.rs
Normal file
52
crates/snippet/grammar/bindings/rust/lib.rs
Normal file
@ -0,0 +1,52 @@
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//! This crate provides snippet language support for the [tree-sitter][] parsing library.
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//!
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//! Typically, you will use the [language][language func] function to add this language to a
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//! tree-sitter [Parser][], and then use the parser to parse some code:
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//!
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//! ```
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//! let code = "";
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//! let mut parser = tree_sitter::Parser::new();
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//! parser.set_language(tree_sitter_snippet::language()).expect("Error loading snippet grammar");
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//! let tree = parser.parse(code, None).unwrap();
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//! ```
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//!
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//! [Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html
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//! [language func]: fn.language.html
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//! [Parser]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Parser.html
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//! [tree-sitter]: https://tree-sitter.github.io/
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use tree_sitter::Language;
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extern "C" {
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fn tree_sitter_snippet() -> Language;
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}
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/// Get the tree-sitter [Language][] for this grammar.
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///
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/// [Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html
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pub fn language() -> Language {
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unsafe { tree_sitter_snippet() }
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}
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/// The content of the [`node-types.json`][] file for this grammar.
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///
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/// [`node-types.json`]: https://tree-sitter.github.io/tree-sitter/using-parsers#static-node-types
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pub const NODE_TYPES: &'static str = include_str!("../../src/node-types.json");
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// Uncomment these to include any queries that this grammar contains
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// pub const HIGHLIGHTS_QUERY: &'static str = include_str!("../../queries/highlights.scm");
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// pub const INJECTIONS_QUERY: &'static str = include_str!("../../queries/injections.scm");
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// pub const LOCALS_QUERY: &'static str = include_str!("../../queries/locals.scm");
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// pub const TAGS_QUERY: &'static str = include_str!("../../queries/tags.scm");
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#[cfg(test)]
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mod tests {
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#[test]
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fn test_can_load_grammar() {
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let mut parser = tree_sitter::Parser::new();
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parser
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.set_language(super::language())
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.expect("Error loading snippet language");
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}
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}
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26
crates/snippet/grammar/grammar.js
Normal file
26
crates/snippet/grammar/grammar.js
Normal file
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module.exports = grammar({
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name: 'snippet',
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rules: {
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snippet: $ => repeat1($._any),
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_any: $ => choice(
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$.tabstop,
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$.placeholder,
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$.text
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),
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tabstop: $ => choice(
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seq('$', $.int),
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seq('${', $.int, '}'),
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),
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placeholder: $ => seq('${', $.int, ':', $.snippet, '}'),
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int: $ => /[0-9]+/,
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text: $ => choice($._raw_curly, $._plain_text),
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_raw_curly: $ => token(prec(-1, /}+/)),
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_plain_text: $ => /([^$}]|\\[$\\}])+/,
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}
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})
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19
crates/snippet/grammar/package.json
Normal file
19
crates/snippet/grammar/package.json
Normal file
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{
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"name": "tree-sitter-snippet",
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"version": "0.0.1",
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"description": "snippet grammar for tree-sitter",
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"main": "bindings/node",
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"keywords": [
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"parsing",
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"incremental"
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],
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"dependencies": {
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"nan": "^2.12.1"
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},
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"devDependencies": {
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"tree-sitter-cli": "^0.20.4"
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},
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"scripts": {
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"test": "tree-sitter test"
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}
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}
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133
crates/snippet/grammar/src/grammar.json
Normal file
133
crates/snippet/grammar/src/grammar.json
Normal file
@ -0,0 +1,133 @@
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{
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"name": "snippet",
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"rules": {
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"snippet": {
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"type": "REPEAT1",
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"content": {
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"type": "SYMBOL",
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"name": "_any"
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}
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},
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"_any": {
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"type": "CHOICE",
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"members": [
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{
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"type": "SYMBOL",
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"name": "tabstop"
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},
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{
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"type": "SYMBOL",
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"name": "placeholder"
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},
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{
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"type": "SYMBOL",
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"name": "text"
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}
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]
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},
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"tabstop": {
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"type": "CHOICE",
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"members": [
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{
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"type": "SEQ",
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"members": [
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{
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"type": "STRING",
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"value": "$"
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},
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{
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"type": "SYMBOL",
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"name": "int"
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}
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]
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},
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{
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"type": "SEQ",
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"members": [
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{
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"type": "STRING",
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"value": "${"
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},
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{
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"type": "SYMBOL",
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"name": "int"
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},
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{
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"type": "STRING",
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"value": "}"
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}
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]
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}
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]
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},
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"placeholder": {
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"type": "SEQ",
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"members": [
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{
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"type": "STRING",
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"value": "${"
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},
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{
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"type": "SYMBOL",
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"name": "int"
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},
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{
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"type": "STRING",
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"value": ":"
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},
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{
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"type": "SYMBOL",
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"name": "snippet"
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},
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{
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"type": "STRING",
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"value": "}"
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}
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]
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},
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"int": {
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"type": "PATTERN",
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"value": "[0-9]+"
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},
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"text": {
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"type": "CHOICE",
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"members": [
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{
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"type": "SYMBOL",
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"name": "_raw_curly"
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},
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{
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"type": "SYMBOL",
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"name": "_plain_text"
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}
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]
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},
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"_raw_curly": {
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"type": "TOKEN",
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"content": {
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"type": "PREC",
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"value": -1,
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"content": {
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"type": "PATTERN",
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"value": "}+"
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}
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}
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},
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"_plain_text": {
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"type": "PATTERN",
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"value": "([^$}]|\\\\[$\\\\}])+"
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}
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},
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"extras": [
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{
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"type": "PATTERN",
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"value": "\\s"
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}
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],
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"conflicts": [],
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"precedences": [],
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"externals": [],
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"inline": [],
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"supertypes": []
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}
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84
crates/snippet/grammar/src/node-types.json
Normal file
84
crates/snippet/grammar/src/node-types.json
Normal file
@ -0,0 +1,84 @@
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[
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{
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"type": "placeholder",
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"named": true,
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"fields": {},
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"children": {
|
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"multiple": true,
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"required": true,
|
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"types": [
|
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{
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"type": "int",
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"named": true
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},
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{
|
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"type": "snippet",
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"named": true
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}
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]
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}
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},
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{
|
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"type": "snippet",
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"named": true,
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"fields": {},
|
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"children": {
|
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"multiple": true,
|
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"required": true,
|
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"types": [
|
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{
|
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"type": "placeholder",
|
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"named": true
|
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},
|
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{
|
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"type": "tabstop",
|
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"named": true
|
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},
|
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{
|
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"type": "text",
|
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"named": true
|
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}
|
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]
|
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}
|
||||
},
|
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{
|
||||
"type": "tabstop",
|
||||
"named": true,
|
||||
"fields": {},
|
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"children": {
|
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"multiple": false,
|
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"required": true,
|
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"types": [
|
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{
|
||||
"type": "int",
|
||||
"named": true
|
||||
}
|
||||
]
|
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}
|
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},
|
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{
|
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"type": "text",
|
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"named": true,
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"fields": {}
|
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},
|
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{
|
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"type": "$",
|
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"named": false
|
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},
|
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{
|
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"type": "${",
|
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"named": false
|
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},
|
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{
|
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"type": ":",
|
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"named": false
|
||||
},
|
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{
|
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"type": "int",
|
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"named": true
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},
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{
|
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"type": "}",
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"named": false
|
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}
|
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]
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545
crates/snippet/grammar/src/parser.c
Normal file
545
crates/snippet/grammar/src/parser.c
Normal file
@ -0,0 +1,545 @@
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#include <tree_sitter/parser.h>
|
||||
|
||||
#if defined(__GNUC__) || defined(__clang__)
|
||||
#pragma GCC diagnostic push
|
||||
#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
|
||||
#endif
|
||||
|
||||
#define LANGUAGE_VERSION 13
|
||||
#define STATE_COUNT 25
|
||||
#define LARGE_STATE_COUNT 8
|
||||
#define SYMBOL_COUNT 14
|
||||
#define ALIAS_COUNT 0
|
||||
#define TOKEN_COUNT 8
|
||||
#define EXTERNAL_TOKEN_COUNT 0
|
||||
#define FIELD_COUNT 0
|
||||
#define MAX_ALIAS_SEQUENCE_LENGTH 5
|
||||
#define PRODUCTION_ID_COUNT 1
|
||||
|
||||
enum {
|
||||
anon_sym_DOLLAR = 1,
|
||||
anon_sym_DOLLAR_LBRACE = 2,
|
||||
anon_sym_RBRACE = 3,
|
||||
anon_sym_COLON = 4,
|
||||
sym_int = 5,
|
||||
sym__raw_curly = 6,
|
||||
sym__plain_text = 7,
|
||||
sym_snippet = 8,
|
||||
sym__any = 9,
|
||||
sym_tabstop = 10,
|
||||
sym_placeholder = 11,
|
||||
sym_text = 12,
|
||||
aux_sym_snippet_repeat1 = 13,
|
||||
};
|
||||
|
||||
static const char * const ts_symbol_names[] = {
|
||||
[ts_builtin_sym_end] = "end",
|
||||
[anon_sym_DOLLAR] = "$",
|
||||
[anon_sym_DOLLAR_LBRACE] = "${",
|
||||
[anon_sym_RBRACE] = "}",
|
||||
[anon_sym_COLON] = ":",
|
||||
[sym_int] = "int",
|
||||
[sym__raw_curly] = "_raw_curly",
|
||||
[sym__plain_text] = "_plain_text",
|
||||
[sym_snippet] = "snippet",
|
||||
[sym__any] = "_any",
|
||||
[sym_tabstop] = "tabstop",
|
||||
[sym_placeholder] = "placeholder",
|
||||
[sym_text] = "text",
|
||||
[aux_sym_snippet_repeat1] = "snippet_repeat1",
|
||||
};
|
||||
|
||||
static const TSSymbol ts_symbol_map[] = {
|
||||
[ts_builtin_sym_end] = ts_builtin_sym_end,
|
||||
[anon_sym_DOLLAR] = anon_sym_DOLLAR,
|
||||
[anon_sym_DOLLAR_LBRACE] = anon_sym_DOLLAR_LBRACE,
|
||||
[anon_sym_RBRACE] = anon_sym_RBRACE,
|
||||
[anon_sym_COLON] = anon_sym_COLON,
|
||||
[sym_int] = sym_int,
|
||||
[sym__raw_curly] = sym__raw_curly,
|
||||
[sym__plain_text] = sym__plain_text,
|
||||
[sym_snippet] = sym_snippet,
|
||||
[sym__any] = sym__any,
|
||||
[sym_tabstop] = sym_tabstop,
|
||||
[sym_placeholder] = sym_placeholder,
|
||||
[sym_text] = sym_text,
|
||||
[aux_sym_snippet_repeat1] = aux_sym_snippet_repeat1,
|
||||
};
|
||||
|
||||
static const TSSymbolMetadata ts_symbol_metadata[] = {
|
||||
[ts_builtin_sym_end] = {
|
||||
.visible = false,
|
||||
.named = true,
|
||||
},
|
||||
[anon_sym_DOLLAR] = {
|
||||
.visible = true,
|
||||
.named = false,
|
||||
},
|
||||
[anon_sym_DOLLAR_LBRACE] = {
|
||||
.visible = true,
|
||||
.named = false,
|
||||
},
|
||||
[anon_sym_RBRACE] = {
|
||||
.visible = true,
|
||||
.named = false,
|
||||
},
|
||||
[anon_sym_COLON] = {
|
||||
.visible = true,
|
||||
.named = false,
|
||||
},
|
||||
[sym_int] = {
|
||||
.visible = true,
|
||||
.named = true,
|
||||
},
|
||||
[sym__raw_curly] = {
|
||||
.visible = false,
|
||||
.named = true,
|
||||
},
|
||||
[sym__plain_text] = {
|
||||
.visible = false,
|
||||
.named = true,
|
||||
},
|
||||
[sym_snippet] = {
|
||||
.visible = true,
|
||||
.named = true,
|
||||
},
|
||||
[sym__any] = {
|
||||
.visible = false,
|
||||
.named = true,
|
||||
},
|
||||
[sym_tabstop] = {
|
||||
.visible = true,
|
||||
.named = true,
|
||||
},
|
||||
[sym_placeholder] = {
|
||||
.visible = true,
|
||||
.named = true,
|
||||
},
|
||||
[sym_text] = {
|
||||
.visible = true,
|
||||
.named = true,
|
||||
},
|
||||
[aux_sym_snippet_repeat1] = {
|
||||
.visible = false,
|
||||
.named = false,
|
||||
},
|
||||
};
|
||||
|
||||
static const TSSymbol ts_alias_sequences[PRODUCTION_ID_COUNT][MAX_ALIAS_SEQUENCE_LENGTH] = {
|
||||
[0] = {0},
|
||||
};
|
||||
|
||||
static const uint16_t ts_non_terminal_alias_map[] = {
|
||||
0,
|
||||
};
|
||||
|
||||
static bool ts_lex(TSLexer *lexer, TSStateId state) {
|
||||
START_LEXER();
|
||||
eof = lexer->eof(lexer);
|
||||
switch (state) {
|
||||
case 0:
|
||||
if (eof) ADVANCE(3);
|
||||
if (lookahead == '$') ADVANCE(4);
|
||||
if (lookahead == ':') ADVANCE(7);
|
||||
if (lookahead == '}') ADVANCE(6);
|
||||
if (lookahead == '\t' ||
|
||||
lookahead == '\n' ||
|
||||
lookahead == '\r' ||
|
||||
lookahead == ' ') SKIP(0)
|
||||
if (('0' <= lookahead && lookahead <= '9')) ADVANCE(8);
|
||||
END_STATE();
|
||||
case 1:
|
||||
if (lookahead == '$') ADVANCE(4);
|
||||
if (lookahead == '\\') ADVANCE(12);
|
||||
if (lookahead == '}') ADVANCE(6);
|
||||
if (lookahead == '\t' ||
|
||||
lookahead == '\n' ||
|
||||
lookahead == '\r' ||
|
||||
lookahead == ' ') ADVANCE(10);
|
||||
if (lookahead != 0) ADVANCE(11);
|
||||
END_STATE();
|
||||
case 2:
|
||||
if (eof) ADVANCE(3);
|
||||
if (lookahead == '$') ADVANCE(4);
|
||||
if (lookahead == '\\') ADVANCE(12);
|
||||
if (lookahead == '}') ADVANCE(9);
|
||||
if (lookahead == '\t' ||
|
||||
lookahead == '\n' ||
|
||||
lookahead == '\r' ||
|
||||
lookahead == ' ') ADVANCE(10);
|
||||
if (lookahead != 0) ADVANCE(11);
|
||||
END_STATE();
|
||||
case 3:
|
||||
ACCEPT_TOKEN(ts_builtin_sym_end);
|
||||
END_STATE();
|
||||
case 4:
|
||||
ACCEPT_TOKEN(anon_sym_DOLLAR);
|
||||
if (lookahead == '{') ADVANCE(5);
|
||||
END_STATE();
|
||||
case 5:
|
||||
ACCEPT_TOKEN(anon_sym_DOLLAR_LBRACE);
|
||||
END_STATE();
|
||||
case 6:
|
||||
ACCEPT_TOKEN(anon_sym_RBRACE);
|
||||
END_STATE();
|
||||
case 7:
|
||||
ACCEPT_TOKEN(anon_sym_COLON);
|
||||
END_STATE();
|
||||
case 8:
|
||||
ACCEPT_TOKEN(sym_int);
|
||||
if (('0' <= lookahead && lookahead <= '9')) ADVANCE(8);
|
||||
END_STATE();
|
||||
case 9:
|
||||
ACCEPT_TOKEN(sym__raw_curly);
|
||||
if (lookahead == '}') ADVANCE(9);
|
||||
END_STATE();
|
||||
case 10:
|
||||
ACCEPT_TOKEN(sym__plain_text);
|
||||
if (lookahead == '\\') ADVANCE(12);
|
||||
if (lookahead == '\t' ||
|
||||
lookahead == '\n' ||
|
||||
lookahead == '\r' ||
|
||||
lookahead == ' ') ADVANCE(10);
|
||||
if (lookahead != 0 &&
|
||||
lookahead != '$' &&
|
||||
lookahead != '}') ADVANCE(11);
|
||||
END_STATE();
|
||||
case 11:
|
||||
ACCEPT_TOKEN(sym__plain_text);
|
||||
if (lookahead == '\\') ADVANCE(12);
|
||||
if (lookahead != 0 &&
|
||||
lookahead != '$' &&
|
||||
lookahead != '}') ADVANCE(11);
|
||||
END_STATE();
|
||||
case 12:
|
||||
ACCEPT_TOKEN(sym__plain_text);
|
||||
if (lookahead == '\\') ADVANCE(12);
|
||||
if (lookahead != 0) ADVANCE(11);
|
||||
END_STATE();
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
static const TSLexMode ts_lex_modes[STATE_COUNT] = {
|
||||
[0] = {.lex_state = 0},
|
||||
[1] = {.lex_state = 2},
|
||||
[2] = {.lex_state = 2},
|
||||
[3] = {.lex_state = 2},
|
||||
[4] = {.lex_state = 1},
|
||||
[5] = {.lex_state = 1},
|
||||
[6] = {.lex_state = 2},
|
||||
[7] = {.lex_state = 2},
|
||||
[8] = {.lex_state = 1},
|
||||
[9] = {.lex_state = 2},
|
||||
[10] = {.lex_state = 2},
|
||||
[11] = {.lex_state = 2},
|
||||
[12] = {.lex_state = 1},
|
||||
[13] = {.lex_state = 1},
|
||||
[14] = {.lex_state = 2},
|
||||
[15] = {.lex_state = 1},
|
||||
[16] = {.lex_state = 0},
|
||||
[17] = {.lex_state = 0},
|
||||
[18] = {.lex_state = 0},
|
||||
[19] = {.lex_state = 0},
|
||||
[20] = {.lex_state = 0},
|
||||
[21] = {.lex_state = 0},
|
||||
[22] = {.lex_state = 0},
|
||||
[23] = {.lex_state = 0},
|
||||
[24] = {.lex_state = 0},
|
||||
};
|
||||
|
||||
static const uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
|
||||
[0] = {
|
||||
[ts_builtin_sym_end] = ACTIONS(1),
|
||||
[anon_sym_DOLLAR] = ACTIONS(1),
|
||||
[anon_sym_DOLLAR_LBRACE] = ACTIONS(1),
|
||||
[anon_sym_RBRACE] = ACTIONS(1),
|
||||
[anon_sym_COLON] = ACTIONS(1),
|
||||
[sym_int] = ACTIONS(1),
|
||||
[sym__raw_curly] = ACTIONS(1),
|
||||
},
|
||||
[1] = {
|
||||
[sym_snippet] = STATE(20),
|
||||
[sym__any] = STATE(6),
|
||||
[sym_tabstop] = STATE(6),
|
||||
[sym_placeholder] = STATE(6),
|
||||
[sym_text] = STATE(6),
|
||||
[aux_sym_snippet_repeat1] = STATE(6),
|
||||
[anon_sym_DOLLAR] = ACTIONS(3),
|
||||
[anon_sym_DOLLAR_LBRACE] = ACTIONS(5),
|
||||
[sym__raw_curly] = ACTIONS(7),
|
||||
[sym__plain_text] = ACTIONS(9),
|
||||
},
|
||||
[2] = {
|
||||
[sym_snippet] = STATE(18),
|
||||
[sym__any] = STATE(5),
|
||||
[sym_tabstop] = STATE(5),
|
||||
[sym_placeholder] = STATE(5),
|
||||
[sym_text] = STATE(5),
|
||||
[aux_sym_snippet_repeat1] = STATE(5),
|
||||
[anon_sym_DOLLAR] = ACTIONS(11),
|
||||
[anon_sym_DOLLAR_LBRACE] = ACTIONS(13),
|
||||
[sym__raw_curly] = ACTIONS(15),
|
||||
[sym__plain_text] = ACTIONS(17),
|
||||
},
|
||||
[3] = {
|
||||
[sym_snippet] = STATE(22),
|
||||
[sym__any] = STATE(5),
|
||||
[sym_tabstop] = STATE(5),
|
||||
[sym_placeholder] = STATE(5),
|
||||
[sym_text] = STATE(5),
|
||||
[aux_sym_snippet_repeat1] = STATE(5),
|
||||
[anon_sym_DOLLAR] = ACTIONS(11),
|
||||
[anon_sym_DOLLAR_LBRACE] = ACTIONS(13),
|
||||
[sym__raw_curly] = ACTIONS(15),
|
||||
[sym__plain_text] = ACTIONS(17),
|
||||
},
|
||||
[4] = {
|
||||
[sym__any] = STATE(4),
|
||||
[sym_tabstop] = STATE(4),
|
||||
[sym_placeholder] = STATE(4),
|
||||
[sym_text] = STATE(4),
|
||||
[aux_sym_snippet_repeat1] = STATE(4),
|
||||
[anon_sym_DOLLAR] = ACTIONS(19),
|
||||
[anon_sym_DOLLAR_LBRACE] = ACTIONS(22),
|
||||
[anon_sym_RBRACE] = ACTIONS(25),
|
||||
[sym__raw_curly] = ACTIONS(27),
|
||||
[sym__plain_text] = ACTIONS(30),
|
||||
},
|
||||
[5] = {
|
||||
[sym__any] = STATE(4),
|
||||
[sym_tabstop] = STATE(4),
|
||||
[sym_placeholder] = STATE(4),
|
||||
[sym_text] = STATE(4),
|
||||
[aux_sym_snippet_repeat1] = STATE(4),
|
||||
[anon_sym_DOLLAR] = ACTIONS(11),
|
||||
[anon_sym_DOLLAR_LBRACE] = ACTIONS(13),
|
||||
[anon_sym_RBRACE] = ACTIONS(33),
|
||||
[sym__raw_curly] = ACTIONS(15),
|
||||
[sym__plain_text] = ACTIONS(17),
|
||||
},
|
||||
[6] = {
|
||||
[sym__any] = STATE(7),
|
||||
[sym_tabstop] = STATE(7),
|
||||
[sym_placeholder] = STATE(7),
|
||||
[sym_text] = STATE(7),
|
||||
[aux_sym_snippet_repeat1] = STATE(7),
|
||||
[ts_builtin_sym_end] = ACTIONS(35),
|
||||
[anon_sym_DOLLAR] = ACTIONS(3),
|
||||
[anon_sym_DOLLAR_LBRACE] = ACTIONS(5),
|
||||
[sym__raw_curly] = ACTIONS(7),
|
||||
[sym__plain_text] = ACTIONS(9),
|
||||
},
|
||||
[7] = {
|
||||
[sym__any] = STATE(7),
|
||||
[sym_tabstop] = STATE(7),
|
||||
[sym_placeholder] = STATE(7),
|
||||
[sym_text] = STATE(7),
|
||||
[aux_sym_snippet_repeat1] = STATE(7),
|
||||
[ts_builtin_sym_end] = ACTIONS(37),
|
||||
[anon_sym_DOLLAR] = ACTIONS(39),
|
||||
[anon_sym_DOLLAR_LBRACE] = ACTIONS(42),
|
||||
[sym__raw_curly] = ACTIONS(45),
|
||||
[sym__plain_text] = ACTIONS(48),
|
||||
},
|
||||
};
|
||||
|
||||
static const uint16_t ts_small_parse_table[] = {
|
||||
[0] = 2,
|
||||
ACTIONS(53), 1,
|
||||
sym__plain_text,
|
||||
ACTIONS(51), 4,
|
||||
anon_sym_DOLLAR,
|
||||
anon_sym_DOLLAR_LBRACE,
|
||||
anon_sym_RBRACE,
|
||||
sym__raw_curly,
|
||||
[10] = 2,
|
||||
ACTIONS(55), 2,
|
||||
ts_builtin_sym_end,
|
||||
sym__plain_text,
|
||||
ACTIONS(57), 3,
|
||||
anon_sym_DOLLAR,
|
||||
anon_sym_DOLLAR_LBRACE,
|
||||
sym__raw_curly,
|
||||
[20] = 2,
|
||||
ACTIONS(53), 2,
|
||||
ts_builtin_sym_end,
|
||||
sym__plain_text,
|
||||
ACTIONS(51), 3,
|
||||
anon_sym_DOLLAR,
|
||||
anon_sym_DOLLAR_LBRACE,
|
||||
sym__raw_curly,
|
||||
[30] = 2,
|
||||
ACTIONS(59), 2,
|
||||
ts_builtin_sym_end,
|
||||
sym__plain_text,
|
||||
ACTIONS(61), 3,
|
||||
anon_sym_DOLLAR,
|
||||
anon_sym_DOLLAR_LBRACE,
|
||||
sym__raw_curly,
|
||||
[40] = 2,
|
||||
ACTIONS(65), 1,
|
||||
sym__plain_text,
|
||||
ACTIONS(63), 4,
|
||||
anon_sym_DOLLAR,
|
||||
anon_sym_DOLLAR_LBRACE,
|
||||
anon_sym_RBRACE,
|
||||
sym__raw_curly,
|
||||
[50] = 2,
|
||||
ACTIONS(55), 1,
|
||||
sym__plain_text,
|
||||
ACTIONS(57), 4,
|
||||
anon_sym_DOLLAR,
|
||||
anon_sym_DOLLAR_LBRACE,
|
||||
anon_sym_RBRACE,
|
||||
sym__raw_curly,
|
||||
[60] = 2,
|
||||
ACTIONS(65), 2,
|
||||
ts_builtin_sym_end,
|
||||
sym__plain_text,
|
||||
ACTIONS(63), 3,
|
||||
anon_sym_DOLLAR,
|
||||
anon_sym_DOLLAR_LBRACE,
|
||||
sym__raw_curly,
|
||||
[70] = 2,
|
||||
ACTIONS(59), 1,
|
||||
sym__plain_text,
|
||||
ACTIONS(61), 4,
|
||||
anon_sym_DOLLAR,
|
||||
anon_sym_DOLLAR_LBRACE,
|
||||
anon_sym_RBRACE,
|
||||
sym__raw_curly,
|
||||
[80] = 2,
|
||||
ACTIONS(67), 1,
|
||||
anon_sym_RBRACE,
|
||||
ACTIONS(69), 1,
|
||||
anon_sym_COLON,
|
||||
[87] = 2,
|
||||
ACTIONS(71), 1,
|
||||
anon_sym_RBRACE,
|
||||
ACTIONS(73), 1,
|
||||
anon_sym_COLON,
|
||||
[94] = 1,
|
||||
ACTIONS(75), 1,
|
||||
anon_sym_RBRACE,
|
||||
[98] = 1,
|
||||
ACTIONS(77), 1,
|
||||
sym_int,
|
||||
[102] = 1,
|
||||
ACTIONS(79), 1,
|
||||
ts_builtin_sym_end,
|
||||
[106] = 1,
|
||||
ACTIONS(81), 1,
|
||||
sym_int,
|
||||
[110] = 1,
|
||||
ACTIONS(83), 1,
|
||||
anon_sym_RBRACE,
|
||||
[114] = 1,
|
||||
ACTIONS(85), 1,
|
||||
sym_int,
|
||||
[118] = 1,
|
||||
ACTIONS(87), 1,
|
||||
sym_int,
|
||||
};
|
||||
|
||||
static const uint32_t ts_small_parse_table_map[] = {
|
||||
[SMALL_STATE(8)] = 0,
|
||||
[SMALL_STATE(9)] = 10,
|
||||
[SMALL_STATE(10)] = 20,
|
||||
[SMALL_STATE(11)] = 30,
|
||||
[SMALL_STATE(12)] = 40,
|
||||
[SMALL_STATE(13)] = 50,
|
||||
[SMALL_STATE(14)] = 60,
|
||||
[SMALL_STATE(15)] = 70,
|
||||
[SMALL_STATE(16)] = 80,
|
||||
[SMALL_STATE(17)] = 87,
|
||||
[SMALL_STATE(18)] = 94,
|
||||
[SMALL_STATE(19)] = 98,
|
||||
[SMALL_STATE(20)] = 102,
|
||||
[SMALL_STATE(21)] = 106,
|
||||
[SMALL_STATE(22)] = 110,
|
||||
[SMALL_STATE(23)] = 114,
|
||||
[SMALL_STATE(24)] = 118,
|
||||
};
|
||||
|
||||
static const TSParseActionEntry ts_parse_actions[] = {
|
||||
[0] = {.entry = {.count = 0, .reusable = false}},
|
||||
[1] = {.entry = {.count = 1, .reusable = false}}, RECOVER(),
|
||||
[3] = {.entry = {.count = 1, .reusable = false}}, SHIFT(19),
|
||||
[5] = {.entry = {.count = 1, .reusable = false}}, SHIFT(24),
|
||||
[7] = {.entry = {.count = 1, .reusable = false}}, SHIFT(14),
|
||||
[9] = {.entry = {.count = 1, .reusable = true}}, SHIFT(14),
|
||||
[11] = {.entry = {.count = 1, .reusable = false}}, SHIFT(21),
|
||||
[13] = {.entry = {.count = 1, .reusable = false}}, SHIFT(23),
|
||||
[15] = {.entry = {.count = 1, .reusable = false}}, SHIFT(12),
|
||||
[17] = {.entry = {.count = 1, .reusable = true}}, SHIFT(12),
|
||||
[19] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_snippet_repeat1, 2), SHIFT_REPEAT(21),
|
||||
[22] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_snippet_repeat1, 2), SHIFT_REPEAT(23),
|
||||
[25] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_snippet_repeat1, 2),
|
||||
[27] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_snippet_repeat1, 2), SHIFT_REPEAT(12),
|
||||
[30] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_snippet_repeat1, 2), SHIFT_REPEAT(12),
|
||||
[33] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_snippet, 1),
|
||||
[35] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_snippet, 1),
|
||||
[37] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_snippet_repeat1, 2),
|
||||
[39] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_snippet_repeat1, 2), SHIFT_REPEAT(19),
|
||||
[42] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_snippet_repeat1, 2), SHIFT_REPEAT(24),
|
||||
[45] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_snippet_repeat1, 2), SHIFT_REPEAT(14),
|
||||
[48] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_snippet_repeat1, 2), SHIFT_REPEAT(14),
|
||||
[51] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_tabstop, 3),
|
||||
[53] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_tabstop, 3),
|
||||
[55] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_tabstop, 2),
|
||||
[57] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_tabstop, 2),
|
||||
[59] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_placeholder, 5),
|
||||
[61] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_placeholder, 5),
|
||||
[63] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_text, 1),
|
||||
[65] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_text, 1),
|
||||
[67] = {.entry = {.count = 1, .reusable = true}}, SHIFT(10),
|
||||
[69] = {.entry = {.count = 1, .reusable = true}}, SHIFT(2),
|
||||
[71] = {.entry = {.count = 1, .reusable = true}}, SHIFT(8),
|
||||
[73] = {.entry = {.count = 1, .reusable = true}}, SHIFT(3),
|
||||
[75] = {.entry = {.count = 1, .reusable = true}}, SHIFT(11),
|
||||
[77] = {.entry = {.count = 1, .reusable = true}}, SHIFT(9),
|
||||
[79] = {.entry = {.count = 1, .reusable = true}}, ACCEPT_INPUT(),
|
||||
[81] = {.entry = {.count = 1, .reusable = true}}, SHIFT(13),
|
||||
[83] = {.entry = {.count = 1, .reusable = true}}, SHIFT(15),
|
||||
[85] = {.entry = {.count = 1, .reusable = true}}, SHIFT(17),
|
||||
[87] = {.entry = {.count = 1, .reusable = true}}, SHIFT(16),
|
||||
};
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
#ifdef _WIN32
|
||||
#define extern __declspec(dllexport)
|
||||
#endif
|
||||
|
||||
extern const TSLanguage *tree_sitter_snippet(void) {
|
||||
static const TSLanguage language = {
|
||||
.version = LANGUAGE_VERSION,
|
||||
.symbol_count = SYMBOL_COUNT,
|
||||
.alias_count = ALIAS_COUNT,
|
||||
.token_count = TOKEN_COUNT,
|
||||
.external_token_count = EXTERNAL_TOKEN_COUNT,
|
||||
.state_count = STATE_COUNT,
|
||||
.large_state_count = LARGE_STATE_COUNT,
|
||||
.production_id_count = PRODUCTION_ID_COUNT,
|
||||
.field_count = FIELD_COUNT,
|
||||
.max_alias_sequence_length = MAX_ALIAS_SEQUENCE_LENGTH,
|
||||
.parse_table = &ts_parse_table[0][0],
|
||||
.small_parse_table = ts_small_parse_table,
|
||||
.small_parse_table_map = ts_small_parse_table_map,
|
||||
.parse_actions = ts_parse_actions,
|
||||
.symbol_names = ts_symbol_names,
|
||||
.symbol_metadata = ts_symbol_metadata,
|
||||
.public_symbol_map = ts_symbol_map,
|
||||
.alias_map = ts_non_terminal_alias_map,
|
||||
.alias_sequences = &ts_alias_sequences[0][0],
|
||||
.lex_modes = ts_lex_modes,
|
||||
.lex_fn = ts_lex,
|
||||
};
|
||||
return &language;
|
||||
}
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
224
crates/snippet/grammar/src/tree_sitter/parser.h
Normal file
224
crates/snippet/grammar/src/tree_sitter/parser.h
Normal file
@ -0,0 +1,224 @@
|
||||
#ifndef TREE_SITTER_PARSER_H_
|
||||
#define TREE_SITTER_PARSER_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#define ts_builtin_sym_error ((TSSymbol)-1)
|
||||
#define ts_builtin_sym_end 0
|
||||
#define TREE_SITTER_SERIALIZATION_BUFFER_SIZE 1024
|
||||
|
||||
typedef uint16_t TSStateId;
|
||||
|
||||
#ifndef TREE_SITTER_API_H_
|
||||
typedef uint16_t TSSymbol;
|
||||
typedef uint16_t TSFieldId;
|
||||
typedef struct TSLanguage TSLanguage;
|
||||
#endif
|
||||
|
||||
typedef struct {
|
||||
TSFieldId field_id;
|
||||
uint8_t child_index;
|
||||
bool inherited;
|
||||
} TSFieldMapEntry;
|
||||
|
||||
typedef struct {
|
||||
uint16_t index;
|
||||
uint16_t length;
|
||||
} TSFieldMapSlice;
|
||||
|
||||
typedef struct {
|
||||
bool visible;
|
||||
bool named;
|
||||
bool supertype;
|
||||
} TSSymbolMetadata;
|
||||
|
||||
typedef struct TSLexer TSLexer;
|
||||
|
||||
struct TSLexer {
|
||||
int32_t lookahead;
|
||||
TSSymbol result_symbol;
|
||||
void (*advance)(TSLexer *, bool);
|
||||
void (*mark_end)(TSLexer *);
|
||||
uint32_t (*get_column)(TSLexer *);
|
||||
bool (*is_at_included_range_start)(const TSLexer *);
|
||||
bool (*eof)(const TSLexer *);
|
||||
};
|
||||
|
||||
typedef enum {
|
||||
TSParseActionTypeShift,
|
||||
TSParseActionTypeReduce,
|
||||
TSParseActionTypeAccept,
|
||||
TSParseActionTypeRecover,
|
||||
} TSParseActionType;
|
||||
|
||||
typedef union {
|
||||
struct {
|
||||
uint8_t type;
|
||||
TSStateId state;
|
||||
bool extra;
|
||||
bool repetition;
|
||||
} shift;
|
||||
struct {
|
||||
uint8_t type;
|
||||
uint8_t child_count;
|
||||
TSSymbol symbol;
|
||||
int16_t dynamic_precedence;
|
||||
uint16_t production_id;
|
||||
} reduce;
|
||||
uint8_t type;
|
||||
} TSParseAction;
|
||||
|
||||
typedef struct {
|
||||
uint16_t lex_state;
|
||||
uint16_t external_lex_state;
|
||||
} TSLexMode;
|
||||
|
||||
typedef union {
|
||||
TSParseAction action;
|
||||
struct {
|
||||
uint8_t count;
|
||||
bool reusable;
|
||||
} entry;
|
||||
} TSParseActionEntry;
|
||||
|
||||
struct TSLanguage {
|
||||
uint32_t version;
|
||||
uint32_t symbol_count;
|
||||
uint32_t alias_count;
|
||||
uint32_t token_count;
|
||||
uint32_t external_token_count;
|
||||
uint32_t state_count;
|
||||
uint32_t large_state_count;
|
||||
uint32_t production_id_count;
|
||||
uint32_t field_count;
|
||||
uint16_t max_alias_sequence_length;
|
||||
const uint16_t *parse_table;
|
||||
const uint16_t *small_parse_table;
|
||||
const uint32_t *small_parse_table_map;
|
||||
const TSParseActionEntry *parse_actions;
|
||||
const char * const *symbol_names;
|
||||
const char * const *field_names;
|
||||
const TSFieldMapSlice *field_map_slices;
|
||||
const TSFieldMapEntry *field_map_entries;
|
||||
const TSSymbolMetadata *symbol_metadata;
|
||||
const TSSymbol *public_symbol_map;
|
||||
const uint16_t *alias_map;
|
||||
const TSSymbol *alias_sequences;
|
||||
const TSLexMode *lex_modes;
|
||||
bool (*lex_fn)(TSLexer *, TSStateId);
|
||||
bool (*keyword_lex_fn)(TSLexer *, TSStateId);
|
||||
TSSymbol keyword_capture_token;
|
||||
struct {
|
||||
const bool *states;
|
||||
const TSSymbol *symbol_map;
|
||||
void *(*create)(void);
|
||||
void (*destroy)(void *);
|
||||
bool (*scan)(void *, TSLexer *, const bool *symbol_whitelist);
|
||||
unsigned (*serialize)(void *, char *);
|
||||
void (*deserialize)(void *, const char *, unsigned);
|
||||
} external_scanner;
|
||||
const TSStateId *primary_state_ids;
|
||||
};
|
||||
|
||||
/*
|
||||
* Lexer Macros
|
||||
*/
|
||||
|
||||
#define START_LEXER() \
|
||||
bool result = false; \
|
||||
bool skip = false; \
|
||||
bool eof = false; \
|
||||
int32_t lookahead; \
|
||||
goto start; \
|
||||
next_state: \
|
||||
lexer->advance(lexer, skip); \
|
||||
start: \
|
||||
skip = false; \
|
||||
lookahead = lexer->lookahead;
|
||||
|
||||
#define ADVANCE(state_value) \
|
||||
{ \
|
||||
state = state_value; \
|
||||
goto next_state; \
|
||||
}
|
||||
|
||||
#define SKIP(state_value) \
|
||||
{ \
|
||||
skip = true; \
|
||||
state = state_value; \
|
||||
goto next_state; \
|
||||
}
|
||||
|
||||
#define ACCEPT_TOKEN(symbol_value) \
|
||||
result = true; \
|
||||
lexer->result_symbol = symbol_value; \
|
||||
lexer->mark_end(lexer);
|
||||
|
||||
#define END_STATE() return result;
|
||||
|
||||
/*
|
||||
* Parse Table Macros
|
||||
*/
|
||||
|
||||
#define SMALL_STATE(id) id - LARGE_STATE_COUNT
|
||||
|
||||
#define STATE(id) id
|
||||
|
||||
#define ACTIONS(id) id
|
||||
|
||||
#define SHIFT(state_value) \
|
||||
{{ \
|
||||
.shift = { \
|
||||
.type = TSParseActionTypeShift, \
|
||||
.state = state_value \
|
||||
} \
|
||||
}}
|
||||
|
||||
#define SHIFT_REPEAT(state_value) \
|
||||
{{ \
|
||||
.shift = { \
|
||||
.type = TSParseActionTypeShift, \
|
||||
.state = state_value, \
|
||||
.repetition = true \
|
||||
} \
|
||||
}}
|
||||
|
||||
#define SHIFT_EXTRA() \
|
||||
{{ \
|
||||
.shift = { \
|
||||
.type = TSParseActionTypeShift, \
|
||||
.extra = true \
|
||||
} \
|
||||
}}
|
||||
|
||||
#define REDUCE(symbol_val, child_count_val, ...) \
|
||||
{{ \
|
||||
.reduce = { \
|
||||
.type = TSParseActionTypeReduce, \
|
||||
.symbol = symbol_val, \
|
||||
.child_count = child_count_val, \
|
||||
__VA_ARGS__ \
|
||||
}, \
|
||||
}}
|
||||
|
||||
#define RECOVER() \
|
||||
{{ \
|
||||
.type = TSParseActionTypeRecover \
|
||||
}}
|
||||
|
||||
#define ACCEPT_INPUT() \
|
||||
{{ \
|
||||
.type = TSParseActionTypeAccept \
|
||||
}}
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // TREE_SITTER_PARSER_H_
|
||||
139
crates/snippet/src/snippet.rs
Normal file
139
crates/snippet/src/snippet.rs
Normal file
@ -0,0 +1,139 @@
|
||||
use anyhow::{anyhow, Result};
|
||||
use smallvec::SmallVec;
|
||||
use std::{collections::BTreeMap, ops::Range};
|
||||
use tree_sitter::{Parser, TreeCursor};
|
||||
|
||||
#[derive(Default)]
|
||||
pub struct Snippet {
|
||||
pub text: String,
|
||||
pub tabstops: Vec<SmallVec<[Range<usize>; 2]>>,
|
||||
}
|
||||
|
||||
impl Snippet {
|
||||
pub fn parse(source: &str) -> Result<Self> {
|
||||
let mut parser = Parser::new();
|
||||
parser
|
||||
.set_language(tree_sitter_snippet::language())
|
||||
.unwrap();
|
||||
|
||||
let tree = parser.parse(source, None).unwrap();
|
||||
if tree.root_node().has_error() {
|
||||
return Err(anyhow!("invalid snippet"));
|
||||
}
|
||||
|
||||
let mut text = String::new();
|
||||
let mut tabstops = BTreeMap::new();
|
||||
let mut cursor = tree.root_node().walk();
|
||||
parse_snippet_node(&mut cursor, &mut text, &mut tabstops, source)?;
|
||||
|
||||
Ok(Snippet {
|
||||
text,
|
||||
tabstops: tabstops.into_values().collect(),
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_snippet_node(
|
||||
cursor: &mut TreeCursor,
|
||||
text: &mut String,
|
||||
tabstops: &mut BTreeMap<usize, SmallVec<[Range<usize>; 2]>>,
|
||||
source: &str,
|
||||
) -> Result<()> {
|
||||
cursor.goto_first_child();
|
||||
loop {
|
||||
let node = cursor.node();
|
||||
match node.kind() {
|
||||
"text" => text.push_str(&source[node.byte_range()]),
|
||||
"tabstop" => {
|
||||
if let Some(int_node) = node.named_child(0) {
|
||||
let index = source[int_node.byte_range()].parse::<usize>()?;
|
||||
tabstops
|
||||
.entry(index)
|
||||
.or_insert(SmallVec::new())
|
||||
.push(text.len()..text.len());
|
||||
}
|
||||
}
|
||||
"placeholder" => {
|
||||
cursor.goto_first_child();
|
||||
cursor.goto_next_sibling();
|
||||
let int_node = cursor.node();
|
||||
let index = source[int_node.byte_range()].parse::<usize>()?;
|
||||
|
||||
cursor.goto_next_sibling();
|
||||
cursor.goto_next_sibling();
|
||||
let range_start = text.len();
|
||||
|
||||
parse_snippet_node(cursor, text, tabstops, source)?;
|
||||
tabstops
|
||||
.entry(index)
|
||||
.or_insert(SmallVec::new())
|
||||
.push(range_start..text.len());
|
||||
|
||||
cursor.goto_parent();
|
||||
}
|
||||
_ => {}
|
||||
}
|
||||
|
||||
if !cursor.goto_next_sibling() {
|
||||
break;
|
||||
}
|
||||
}
|
||||
cursor.goto_parent();
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test_parse_snippet_with_tabstops() {
|
||||
let snippet = Snippet::parse("one$1two").unwrap();
|
||||
assert_eq!(snippet.text, "onetwo");
|
||||
assert_eq!(
|
||||
snippet
|
||||
.tabstops
|
||||
.iter()
|
||||
.map(SmallVec::as_slice)
|
||||
.collect::<Vec<_>>(),
|
||||
&[vec![3..3]]
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_parse_snippet_with_placeholders() {
|
||||
let snippet = Snippet::parse("one${1:two}three").unwrap();
|
||||
assert_eq!(snippet.text, "onetwothree");
|
||||
assert_eq!(
|
||||
snippet
|
||||
.tabstops
|
||||
.iter()
|
||||
.map(SmallVec::as_slice)
|
||||
.collect::<Vec<_>>(),
|
||||
&[vec![3..6]]
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_parse_snippet_with_nested_placeholders() {
|
||||
let snippet = Snippet::parse(
|
||||
"for (${1:var ${2:i} = 0; ${2:i} < ${3:${4:array}.length}; ${2:i}++}) {$5}",
|
||||
)
|
||||
.unwrap();
|
||||
assert_eq!(snippet.text, "for (var i = 0; i < array.length; i++) {}");
|
||||
assert_eq!(
|
||||
snippet
|
||||
.tabstops
|
||||
.iter()
|
||||
.map(SmallVec::as_slice)
|
||||
.collect::<Vec<_>>(),
|
||||
&[
|
||||
vec![5..37],
|
||||
vec![9..10, 16..17, 34..35],
|
||||
vec![20..32],
|
||||
vec![20..25],
|
||||
vec![40..40],
|
||||
]
|
||||
);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user