refactor(preg): replace Preg::split*() with shim preg_split*()

preg_split2()'s limit was always -1 and its flags were always either 0 or
PREG_SPLIT_DELIM_CAPTURE alone, so both arguments are gone: the shim now
exposes preg_split() and preg_split_delim_capture() over a shared
preg_split_impl(). That leaves Preg::split()/split4() as bare
pass-throughs, so callers use the shim functions directly and the wrappers
are dropped along with the now-unreferenced PREG_SPLIT_* constants.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/crates/shirabe/src/repository/array_repository.rs b/crates/shirabe/src/repository/array_repository.rs
index b28cccdc..0f3dc237 100644
--- a/crates/shirabe/src/repository/array_repository.rs
+++ b/crates/shirabe/src/repository/array_repository.rs
@@ -13,7 +13,7 @@ use crate::repository::{
 };
 use indexmap::IndexMap;
 use shirabe_pcre::Preg;
-use shirabe_php_shim::{implode, php_regex, preg_quote, strtolower};
+use shirabe_php_shim::{implode, php_regex, preg_quote, preg_split, strtolower};
 use shirabe_semver::constraint::AnyConstraint;
 use shirabe_semver::constraint::SimpleConstraint;
 use std::rc::Weak;
@@ -329,11 +329,11 @@ impl RepositoryInterface for ArrayRepository {
         r#type: Option<String>,
     ) -> anyhow::Result<Vec<SearchResult>> {
         let regex = if mode == crate::repository::SEARCH_FULLTEXT {
-            let parts = Preg::split(php_regex!("{\\s+}"), &preg_quote(&query, None));
+            let parts = preg_split(php_regex!("{\\s+}"), &preg_quote(&query, None));
             format!("{{(?:{})}}i", implode("|", &parts))
         } else {
             // vendor/name searches expect the caller to have preg_quoted the query
-            let parts = Preg::split(php_regex!("{\\s+}"), &query);
+            let parts = preg_split(php_regex!("{\\s+}"), &query);
             format!("{{(?:{})}}i", implode("|", &parts))
         };