refactor(cli,ext,ops): cleanup regex with lazy-regex (#17296)

- bump deps: the newest `lazy-regex` need newer `oncecell` and
`regex`
- reduce `unwrap`
- remove dep `lazy_static`
- make more regex cached

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

Cargo.lock

@@ -761,6 +761,7 @@ dependencies = [
  "indexmap",
  "jsonc-parser",
  "junction",
+ "lazy-regex",
  "libc",
  "log",
  "lsp-types",
@@ -1156,6 +1157,7 @@ dependencies = [
  "hkdf",
  "idna 0.3.0",
  "indexmap",
+ "lazy-regex",
  "libz-sys",
  "md-5",
  "md4",
@@ -1201,6 +1203,7 @@ dependencies = [
 name = "deno_ops"
 version = "0.58.0"
 dependencies = [
+ "lazy-regex",
  "once_cell",
  "pmutil",
  "prettyplease",
@@ -2523,6 +2526,29 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "lazy-regex"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff63c423c68ea6814b7da9e88ce585f793c87ddd9e78f646970891769c8235d4"
+dependencies = [
+ "lazy-regex-proc_macros",
+ "once_cell",
+ "regex",
+]
+
+[[package]]
+name = "lazy-regex-proc_macros"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8edfc11b8f56ce85e207e62ea21557cfa09bb24a8f6b04ae181b086ff8611c22"
+dependencies = [
+ "proc-macro2 1.0.56",
+ "quote 1.0.26",
+ "regex",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -4765,7 +4791,7 @@ dependencies = [
  "flate2",
  "futures",
  "hyper",
- "lazy_static",
+ "lazy-regex",
  "lsp-types",
  "nix",
  "once_cell",

Cargo.toml

@@ -110,6 +110,7 @@ pin-project = "1.0.11" # don't pin because they yank crates from cargo
 pretty_assertions = "=1.3.0"
 rand = "=0.8.5"
 regex = "^1.7.0"
+lazy-regex = "2.5.0"
 reqwest = { version = "0.11.11", default-features = false, features = ["rustls-tls", "stream", "gzip", "brotli", "socks"] }
 ring = "=0.16.20"
 rusqlite = { version = "=0.28.0", features = ["unlock_notify", "bundled"] }

cli/Cargo.toml

@@ -29,7 +29,7 @@ path = "./bench/lsp_bench_standalone.rs"
 [build-dependencies]
 deno_runtime = { workspace = true, features = ["snapshot_from_snapshot", "include_js_files_for_snapshotting"] }
 deno_core = { workspace = true, features = ["include_js_files_for_snapshotting"] }
-regex.workspace = true
+lazy-regex.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 zstd.workspace = true
@@ -78,6 +78,7 @@ http.workspace = true
 import_map = "=0.15.0"
 indexmap.workspace = true
 jsonc-parser = { version = "=0.21.0", features = ["serde"] }
+lazy-regex.workspace = true
 libc.workspace = true
 log = { workspace = true, features = ["serde"] }
 lsp-types.workspace = true

cli/build.rs

@@ -20,7 +20,6 @@ mod ts {
   use deno_core::op;
   use deno_core::OpState;
   use deno_runtime::deno_node::SUPPORTED_BUILTIN_NODE_MODULES;
-  use regex::Regex;
   use serde::Deserialize;
   use serde_json::json;
   use serde_json::Value;
@@ -69,8 +68,7 @@ mod ts {
   fn op_load(state: &mut OpState, args: LoadArgs) -> Result<Value, AnyError> {
     let op_crate_libs = state.borrow::<HashMap<&str, PathBuf>>();
     let path_dts = state.borrow::<PathBuf>();
-    let re_asset =
-      Regex::new(r"asset:/{3}lib\.(\S+)\.d\.ts").expect("bad regex");
+    let re_asset = lazy_regex::regex!(r"asset:/{3}lib\.(\S+)\.d\.ts");
     let build_specifier = "asset:///bootstrap.ts";
 
     // we need a basic file to send to tsc to warm it up.

cli/lsp/analysis.rs

@@ -53,7 +53,7 @@ static PREFERRED_FIXES: Lazy<HashMap<&'static str, (u32, bool)>> =
   });
 
 static IMPORT_SPECIFIER_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r#"\sfrom\s+["']([^"']*)["']"#).unwrap());
+  lazy_regex::lazy_regex!(r#"\sfrom\s+["']([^"']*)["']"#);
 
 const SUPPORTED_EXTENSIONS: &[&str] = &[".ts", ".tsx", ".js", ".jsx", ".mjs"];
 

cli/lsp/code_lens.rs

@@ -21,6 +21,7 @@ use deno_core::serde::Serialize;
 use deno_core::serde_json;
 use deno_core::serde_json::json;
 use deno_core::ModuleSpecifier;
+use lazy_regex::lazy_regex;
 use once_cell::sync::Lazy;
 use regex::Regex;
 use std::cell::RefCell;
@@ -29,11 +30,9 @@ use std::rc::Rc;
 use std::sync::Arc;
 use tower_lsp::lsp_types as lsp;
 
-static ABSTRACT_MODIFIER: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r"\babstract\b").unwrap());
+static ABSTRACT_MODIFIER: Lazy<Regex> = lazy_regex!(r"\babstract\b");
 
-static EXPORT_MODIFIER: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r"\bexport\b").unwrap());
+static EXPORT_MODIFIER: Lazy<Regex> = lazy_regex!(r"\bexport\b");
 
 #[derive(Debug, Deserialize, Serialize)]
 pub enum CodeLensSource {

cli/lsp/completions.rs

@@ -28,7 +28,7 @@ use std::sync::Arc;
 use tower_lsp::lsp_types as lsp;
 
 static FILE_PROTO_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r#"^file:/{2}(?:/[A-Za-z]:)?"#).unwrap());
+  lazy_regex::lazy_regex!(r#"^file:/{2}(?:/[A-Za-z]:)?"#);
 
 const CURRENT_PATH: &str = ".";
 const PARENT_PATH: &str = "..";

cli/lsp/path_to_regex.rs

@@ -37,7 +37,7 @@ use std::fmt::Write as _;
 use std::iter::Peekable;
 
 static ESCAPE_STRING_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r"([.+*?=^!:${}()\[\]|/\\])").unwrap());
+  lazy_regex::lazy_regex!(r"([.+*?=^!:${}()\[\]|/\\])");
 
 #[derive(Debug, PartialEq, Eq)]
 enum TokenType {

cli/lsp/registries.rs

@@ -33,7 +33,6 @@ use deno_runtime::deno_web::BlobStore;
 use deno_runtime::permissions::PermissionsContainer;
 use log::error;
 use once_cell::sync::Lazy;
-use regex::Regex;
 use std::collections::HashMap;
 use std::path::Path;
 use tower_lsp::lsp_types as lsp;
@@ -66,8 +65,8 @@ const COMPONENT: &percent_encoding::AsciiSet = &percent_encoding::CONTROLS
 
 const REGISTRY_IMPORT_COMMIT_CHARS: &[&str] = &["\"", "'", "/"];
 
-static REPLACEMENT_VARIABLE_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r"\$\{\{?(\w+)\}?\}").unwrap());
+static REPLACEMENT_VARIABLE_RE: Lazy<regex::Regex> =
+  lazy_regex::lazy_regex!(r"\$\{\{?(\w+)\}?\}");
 
 fn base_url(url: &Url) -> String {
   url.origin().ascii_serialization()

cli/lsp/tsc.rs

@@ -44,6 +44,7 @@ use deno_core::ModuleSpecifier;
 use deno_core::OpState;
 use deno_core::RuntimeOptions;
 use deno_runtime::tokio_util::create_basic_runtime;
+use lazy_regex::lazy_regex;
 use once_cell::sync::Lazy;
 use regex::Captures;
 use regex::Regex;
@@ -65,24 +66,18 @@ use tower_lsp::jsonrpc::Result as LspResult;
 use tower_lsp::lsp_types as lsp;
 
 static BRACKET_ACCESSOR_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r#"^\[['"](.+)[\['"]\]$"#).unwrap());
-static CAPTION_RE: Lazy<Regex> = Lazy::new(|| {
-  Regex::new(r"<caption>(.*?)</caption>\s*\r?\n((?:\s|\S)*)").unwrap()
-});
-static CODEBLOCK_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r"^\s*[~`]{3}").unwrap());
-static EMAIL_MATCH_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r"(.+)\s<([-.\w]+@[-.\w]+)>").unwrap());
-static HTTP_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r#"(?i)^https?:"#).unwrap());
-static JSDOC_LINKS_RE: Lazy<Regex> = Lazy::new(|| {
-  Regex::new(r"(?i)\{@(link|linkplain|linkcode) (https?://[^ |}]+?)(?:[| ]([^{}\n]+?))?\}").unwrap()
-});
-static PART_KIND_MODIFIER_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r",|\s+").unwrap());
-static PART_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r"^(\S+)\s*-?\s*").unwrap());
-static SCOPE_RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"scope_(\d)").unwrap());
+  lazy_regex!(r#"^\[['"](.+)[\['"]\]$"#);
+static CAPTION_RE: Lazy<Regex> =
+  lazy_regex!(r"<caption>(.*?)</caption>\s*\r?\n((?:\s|\S)*)");
+static CODEBLOCK_RE: Lazy<Regex> = lazy_regex!(r"^\s*[~`]{3}");
+static EMAIL_MATCH_RE: Lazy<Regex> = lazy_regex!(r"(.+)\s<([-.\w]+@[-.\w]+)>");
+static HTTP_RE: Lazy<Regex> = lazy_regex!(r#"(?i)^https?:"#);
+static JSDOC_LINKS_RE: Lazy<Regex> = lazy_regex!(
+  r"(?i)\{@(link|linkplain|linkcode) (https?://[^ |}]+?)(?:[| ]([^{}\n]+?))?\}"
+);
+static PART_KIND_MODIFIER_RE: Lazy<Regex> = lazy_regex!(r",|\s+");
+static PART_RE: Lazy<Regex> = lazy_regex!(r"^(\S+)\s*-?\s*");
+static SCOPE_RE: Lazy<Regex> = lazy_regex!(r"scope_(\d)");
 
 const FILE_EXTENSION_KIND_MODIFIERS: &[&str] =
   &[".d.ts", ".ts", ".tsx", ".js", ".jsx", ".json"];

cli/node/mod.rs

@@ -36,7 +36,6 @@ use deno_runtime::permissions::PermissionsContainer;
 use deno_semver::npm::NpmPackageNv;
 use deno_semver::npm::NpmPackageNvReference;
 use once_cell::sync::Lazy;
-use regex::Regex;
 
 use crate::cache::NodeAnalysisCache;
 use crate::file_fetcher::FileFetcher;
@@ -500,8 +499,7 @@ fn finalize_resolution(
   resolved: ModuleSpecifier,
   base: &ModuleSpecifier,
 ) -> Result<ModuleSpecifier, AnyError> {
-  // todo(dsherret): cache
-  let encoded_sep_re = Regex::new(r"%2F|%2C").unwrap();
+  let encoded_sep_re = lazy_regex::regex!(r"%2F|%2C");
 
   if encoded_sep_re.is_match(resolved.path()) {
     return Err(errors::err_invalid_module_specifier(

cli/tools/check.rs

@@ -321,7 +321,7 @@ fn get_tsc_roots(
 
 /// Matches the `@ts-check` pragma.
 static TS_CHECK_RE: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r#"(?i)^\s*@ts-check(?:\s+|$)"#).unwrap());
+  lazy_regex::lazy_regex!(r#"(?i)^\s*@ts-check(?:\s+|$)"#);
 
 fn has_ts_check(media_type: MediaType, file_text: &str) -> bool {
   match &media_type {

cli/tools/installer.rs

@@ -35,7 +35,7 @@ static EXEC_NAME_RE: Lazy<Regex> = Lazy::new(|| {
   RegexBuilder::new(r"^[a-z][\w-]*$")
     .case_insensitive(true)
     .build()
-    .unwrap()
+    .expect("invalid regex")
 });
 
 fn validate_name(exec_name: &str) -> Result<(), AnyError> {

cli/tools/test.rs

@@ -1031,8 +1031,8 @@ fn extract_files_from_source_comments(
     scope_analysis: false,
   })?;
   let comments = parsed_source.comments().get_vec();
-  let blocks_regex = Regex::new(r"```([^\r\n]*)\r?\n([\S\s]*?)```")?;
-  let lines_regex = Regex::new(r"(?:\* ?)(?:\# ?)?(.*)")?;
+  let blocks_regex = lazy_regex::regex!(r"```([^\r\n]*)\r?\n([\S\s]*?)```");
+  let lines_regex = lazy_regex::regex!(r"(?:\* ?)(?:\# ?)?(.*)");
 
   let files = comments
     .iter()
@@ -1049,8 +1049,8 @@ fn extract_files_from_source_comments(
         &comment.text,
         media_type,
         parsed_source.text_info().line_index(comment.start()),
-        &blocks_regex,
-        &lines_regex,
+        blocks_regex,
+        lines_regex,
       )
     })
     .flatten()
@@ -1069,16 +1069,16 @@ fn extract_files_from_fenced_blocks(
   // check can be done to see if a block is inside a comment (and skip typechecking)
   // or not by checking for the presence of capturing groups in the matches.
   let blocks_regex =
-    Regex::new(r"(?s)<!--.*?-->|```([^\r\n]*)\r?\n([\S\s]*?)```")?;
-  let lines_regex = Regex::new(r"(?:\# ?)?(.*)")?;
+    lazy_regex::regex!(r"(?s)<!--.*?-->|```([^\r\n]*)\r?\n([\S\s]*?)```");
+  let lines_regex = lazy_regex::regex!(r"(?:\# ?)?(.*)");
 
   extract_files_from_regex_blocks(
     specifier,
     source,
     media_type,
     /* file line index */ 0,
-    &blocks_regex,
-    &lines_regex,
+    blocks_regex,
+    lines_regex,
   )
 }
 

cli/tools/upgrade.rs

@@ -289,9 +289,9 @@ pub async fn upgrade(
 
   let install_version = match upgrade_flags.version {
     Some(passed_version) => {
-      if upgrade_flags.canary
-        && !regex::Regex::new("^[0-9a-f]{40}$")?.is_match(&passed_version)
-      {
+      let re_hash = lazy_regex::regex!("^[0-9a-f]{40}$");
+
+      if upgrade_flags.canary && !re_hash.is_match(&passed_version) {
         bail!("Invalid commit hash passed");
       } else if !upgrade_flags.canary
         && Version::parse_standard(&passed_version).is_err()

cli/tsc/diagnostics.rs

@@ -6,6 +6,7 @@ use deno_core::serde::Deserialize;
 use deno_core::serde::Deserializer;
 use deno_core::serde::Serialize;
 use deno_core::serde::Serializer;
+use lazy_regex::lazy_regex;
 use once_cell::sync::Lazy;
 use regex::Regex;
 use std::error::Error;
@@ -36,13 +37,11 @@ const UNSTABLE_DENO_PROPS: &[&str] = &[
   "osUptime",
 ];
 
-static MSG_MISSING_PROPERTY_DENO: Lazy<Regex> = Lazy::new(|| {
-  Regex::new(r#"Property '([^']+)' does not exist on type 'typeof Deno'"#)
-    .unwrap()
-});
+static MSG_MISSING_PROPERTY_DENO: Lazy<Regex> =
+  lazy_regex!(r#"Property '([^']+)' does not exist on type 'typeof Deno'"#);
 
 static MSG_SUGGESTION: Lazy<Regex> =
-  Lazy::new(|| Regex::new(r#" Did you mean '([^']+)'\?"#).unwrap());
+  lazy_regex!(r#" Did you mean '([^']+)'\?"#);
 
 /// Potentially convert a "raw" diagnostic message from TSC to something that
 /// provides a more sensible error message given a Deno runtime context.

ext/node/Cargo.toml

@@ -24,6 +24,7 @@ hex.workspace = true
 hkdf.workspace = true
 idna = "0.3.0"
 indexmap.workspace = true
+lazy-regex.workspace = true
 libz-sys = { version = "1.1.8", features = ["static"] }
 md-5 = "0.10.5"
 md4 = "0.10.2"

ext/node/resolution.rs

@@ -10,7 +10,6 @@ use deno_core::serde_json::Map;
 use deno_core::serde_json::Value;
 use deno_core::url::Url;
 use deno_core::ModuleSpecifier;
-use regex::Regex;
 
 use crate::errors;
 use crate::package_json::PackageJson;
@@ -342,8 +341,8 @@ fn resolve_package_target_string<Fs: NodeFs>(
     ));
   }
   let invalid_segment_re =
-    Regex::new(r"(^|\\|/)(\.\.?|node_modules)(\\|/|$)").expect("bad regex");
-  let pattern_re = Regex::new(r"\*").expect("bad regex");
+    lazy_regex::regex!(r"(^|\\|/)(\.\.?|node_modules)(\\|/|$)");
+  let pattern_re = lazy_regex::regex!(r"\*");
   if !target.starts_with("./") {
     if internal && !target.starts_with("../") && !target.starts_with('/') {
       let is_url = Url::parse(&target).is_ok();

ops/Cargo.toml

@@ -15,6 +15,7 @@ path = "./lib.rs"
 proc-macro = true
 
 [dependencies]
+lazy-regex.workspace = true
 once_cell.workspace = true
 pmutil = "0.5.3"
 proc-macro-crate = "1.1.3"

ops/lib.rs

@@ -1,7 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
 use attrs::Attributes;
-use once_cell::sync::Lazy;
 use optimizer::BailoutReason;
 use optimizer::Optimizer;
 use proc_macro::TokenStream;
@@ -9,7 +8,6 @@ use proc_macro2::Span;
 use proc_macro2::TokenStream as TokenStream2;
 use quote::quote;
 use quote::ToTokens;
-use regex::Regex;
 use syn::parse;
 use syn::parse_macro_input;
 use syn::punctuated::Punctuated;
@@ -859,30 +857,26 @@ fn is_unit_result(ty: impl ToTokens) -> bool {
 }
 
 fn is_resource_id(arg: impl ToTokens) -> bool {
-  static RE: Lazy<Regex> =
-    Lazy::new(|| Regex::new(r#": (?:deno_core :: )?ResourceId$"#).unwrap());
-  RE.is_match(&tokens(arg))
+  let re = lazy_regex::regex!(r#": (?:deno_core :: )?ResourceId$"#);
+  re.is_match(&tokens(arg))
 }
 
 fn is_mut_ref_opstate(arg: impl ToTokens) -> bool {
-  static RE: Lazy<Regex> =
-    Lazy::new(|| Regex::new(r#": & mut (?:deno_core :: )?OpState$"#).unwrap());
-  RE.is_match(&tokens(arg))
+  let re = lazy_regex::regex!(r#": & mut (?:deno_core :: )?OpState$"#);
+  re.is_match(&tokens(arg))
 }
 
 fn is_rc_refcell_opstate(arg: &syn::FnArg) -> bool {
-  static RE: Lazy<Regex> = Lazy::new(|| {
-    Regex::new(r#": Rc < RefCell < (?:deno_core :: )?OpState > >$"#).unwrap()
-  });
-  RE.is_match(&tokens(arg))
+  let re =
+    lazy_regex::regex!(r#": Rc < RefCell < (?:deno_core :: )?OpState > >$"#);
+  re.is_match(&tokens(arg))
 }
 
 fn is_handle_scope(arg: &syn::FnArg) -> bool {
-  static RE: Lazy<Regex> = Lazy::new(|| {
-    Regex::new(r#": & mut (?:deno_core :: )?v8 :: HandleScope(?: < '\w+ >)?$"#)
-      .unwrap()
-  });
-  RE.is_match(&tokens(arg))
+  let re = lazy_regex::regex!(
+    r#": & mut (?:deno_core :: )?v8 :: HandleScope(?: < '\w+ >)?$"#
+  );
+  re.is_match(&tokens(arg))
 }
 
 fn is_future(ty: impl ToTokens) -> bool {

test_util/Cargo.toml

@@ -22,7 +22,7 @@ console_static_text.workspace = true
 flate2.workspace = true
 futures.workspace = true
 hyper = { workspace = true, features = ["server", "http1", "http2", "runtime"] }
-lazy_static = "1.4.0"
+lazy-regex.workspace = true
 lsp-types.workspace = true
 nix.workspace = true
 once_cell.workspace = true

test_util/src/lib.rs

@@ -13,8 +13,8 @@ use hyper::Body;
 use hyper::Request;
 use hyper::Response;
 use hyper::StatusCode;
-use lazy_static::lazy_static;
 use npm::CUSTOM_NPM_PACKAGE_CACHE;
+use once_cell::sync::Lazy;
 use pretty_assertions::assert_eq;
 use pty::Pty;
 use regex::Regex;
@@ -91,10 +91,8 @@ pub const PERMISSION_VARIANTS: [&str; 5] =
   ["read", "write", "env", "net", "run"];
 pub const PERMISSION_DENIED_PATTERN: &str = "PermissionDenied";
 
-lazy_static! {
-  static ref GUARD: Mutex<HttpServerCount> =
-    Mutex::new(HttpServerCount::default());
-}
+static GUARD: Lazy<Mutex<HttpServerCount>> =
+  Lazy::new(|| Mutex::new(HttpServerCount::default()));
 
 pub fn env_vars_for_npm_tests_no_sync_download() -> Vec<(String, String)> {
   vec![
@@ -2176,12 +2174,10 @@ pub struct WrkOutput {
 }
 
 pub fn parse_wrk_output(output: &str) -> WrkOutput {
-  lazy_static! {
-    static ref REQUESTS_RX: Regex =
-      Regex::new(r"Requests/sec:\s+(\d+)").unwrap();
-    static ref LATENCY_RX: Regex =
-      Regex::new(r"\s+99%(?:\s+(\d+.\d+)([a-z]+))").unwrap();
-  }
+  static REQUESTS_RX: Lazy<Regex> =
+    lazy_regex::lazy_regex!(r"Requests/sec:\s+(\d+)");
+  static LATENCY_RX: Lazy<Regex> =
+    lazy_regex::lazy_regex!(r"\s+99%(?:\s+(\d+.\d+)([a-z]+))");
 
   let mut requests = None;
   let mut latency = None;

test_util/src/lsp.rs

@@ -9,7 +9,6 @@ use super::new_deno_dir;
 use super::TempDir;
 
 use anyhow::Result;
-use lazy_static::lazy_static;
 use lsp_types as lsp;
 use lsp_types::ClientCapabilities;
 use lsp_types::ClientInfo;
@@ -25,6 +24,7 @@ use lsp_types::TextDocumentClientCapabilities;
 use lsp_types::TextDocumentSyncClientCapabilities;
 use lsp_types::Url;
 use lsp_types::WorkspaceClientCapabilities;
+use once_cell::sync::Lazy;
 use parking_lot::Condvar;
 use parking_lot::Mutex;
 use regex::Regex;
@@ -48,10 +48,8 @@ use std::sync::Arc;
 use std::time::Duration;
 use std::time::Instant;
 
-lazy_static! {
-  static ref CONTENT_TYPE_REG: Regex =
-    Regex::new(r"(?i)^content-length:\s+(\d+)").unwrap();
-}
+static CONTENT_TYPE_REG: Lazy<Regex> =
+  lazy_regex::lazy_regex!(r"(?i)^content-length:\s+(\d+)");
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct LspResponseError {