search: Bump fancy-regex dependency and enable CRLF mode (#55471)

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Closes #43396

Release Notes:

- Project search now supports CRLF line endings correctly, as well as
other regex features like subroutine calls

Cargo.lock

@@ -6465,9 +6465,9 @@ dependencies = [
 
 [[package]]
 name = "fancy-regex"
-version = "0.17.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72cf461f865c862bb7dc573f643dd6a2b6842f7c30b07882b56bd148cc2761b8"
+checksum = "e1e1dacd0d2082dfcf1351c4bdd566bbe89a2b263235a2b50058f1e130a47277"
 dependencies = [
  "bit-set 0.8.0",
  "regex-automata",
@@ -14003,7 +14003,7 @@ dependencies = [
  "dap",
  "encoding_rs",
  "extension",
- "fancy-regex 0.17.0",
+ "fancy-regex 0.18.0",
  "fs",
  "futures 0.3.32",
  "fuzzy",
@@ -15066,9 +15066,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.13"
+version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5276caf25ac86c8d810222b3dbb938e512c55c6831a10f3e6ed1c93b84041f1c"
+checksum = "6e1dd4122fc1595e8162618945476892eefca7b88c52820e74af6262213cae8f"
 dependencies = [
  "aho-corasick",
  "memchr",

Cargo.toml

@@ -595,7 +595,7 @@ emojis = "0.6.1"
 env_logger = "0.11"
 encoding_rs = "0.8"
 exec = "0.3.1"
-fancy-regex = "0.17.0"
+fancy-regex = "0.18.0"
 fork = "0.4.0"
 futures = "0.3.32"
 futures-concurrency = "7.7.1"

crates/project/src/search.rs

@@ -251,6 +251,7 @@ impl SearchQuery {
 
         let regex = RegexBuilder::new(&pattern)
             .case_insensitive(!case_sensitive)
+            .crlf(true)
             .build()?;
         Ok(Self::Regex {
             regex,

crates/project/tests/integration/search.rs

@@ -1,3 +1,4 @@
+use language::Buffer;
 use project::search::SearchQuery;
 use text::Rope;
 use util::{
@@ -130,6 +131,30 @@ fn test_case_sensitive_pattern_items() {
     );
 }
 
+#[gpui::test]
+async fn test_multiline_regex_crlf(cx: &mut gpui::TestAppContext) {
+    let search_query = SearchQuery::regex(
+        "^hello$\r?\n",
+        false,
+        false,
+        false,
+        false,
+        Default::default(),
+        Default::default(),
+        false,
+        None,
+    )
+    .expect("Should be able to create a regex SearchQuery");
+
+    let text = Rope::from("hello\r\nworld\r\nhello\r\nworld");
+    let snapshot = cx
+        .update(|app| Buffer::build_snapshot(text, None, None, None, app))
+        .await;
+
+    let results = search_query.search(&snapshot, None).await;
+    assert_eq!(results, vec![0..7, 14..21]);
+}
+
 #[gpui::test]
 async fn test_multiline_regex(cx: &mut gpui::TestAppContext) {
     let search_query = SearchQuery::regex(
@@ -145,7 +170,6 @@ async fn test_multiline_regex(cx: &mut gpui::TestAppContext) {
     )
     .expect("Should be able to create a regex SearchQuery");
 
-    use language::Buffer;
     let text = Rope::from("hello\nworld\nhello\nworld");
     let snapshot = cx
         .update(|app| Buffer::build_snapshot(text, None, None, None, app))