refactor(pcre): inline Preg into its call sites and drop the crate

Preg had shed everything it owned: after the last few rounds its methods
were one-line forwards to the shim's preg_*(), differing only in a
default argument or a wrapper the caller unwrapped anyway. The 460 call
sites now name the shim function, and shirabe-pcre is gone from the
workspace along with its LICENSE entry.

The forwards expand as they read: isMatch becomes
preg_match2(.., 0).is_some() (is_none() where PHP negates it), isMatch3
and match3 drop the .is_some(), matchAll counts through
preg_match_all2(..).occurrence_count(), and replace4/replace5 spell out
the limit and count arguments preg_replace2 takes. Callbacks are the one
place the shapes differ: preg_replace_callback carries an error out of
the callback, so the fourteen infallible closures wrap their result in
Ok() and expect() it back.

Config::process() is the fifteenth, and it drops the `error` cell it
captured to smuggle a failure past a closure that could only return a
String. The `?` in the closure now carries it, which is what the PHP
does -- a throw from the callback leaves preg_replace_callback at the
failing match rather than running the remaining replacements and
reporting the last error.

The module doc that explained why composer/pcre's exceptions and
*StrictGroups() variants have no counterpart moves to the shim's preg
module, where the functions it describes live.

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

1 files changed, 2 insertions, 3 deletions

diff --git a/crates/shirabe/src/util/gitlab.rs b/crates/shirabe/src/util/gitlab.rs
index 52707b5b..c101b1f9 100644
--- a/crates/shirabe/src/util/gitlab.rs
+++ b/crates/shirabe/src/util/gitlab.rs
@@ -9,11 +9,10 @@ use crate::io::io_interface;
 use crate::util::HttpDownloader;
 use crate::util::ProcessExecutor;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
 use shirabe_php_shim::Catch as _;
 use shirabe_php_shim::{
     PhpMixed, RuntimeException, http_build_query, in_array_strict, json_decode_assoc, php_regex,
-    time,
+    preg_replace, time,
 };
 
 #[derive(Debug)]
@@ -54,7 +53,7 @@ impl GitLab {
 
     pub fn authorize_oauth(&mut self, origin_url: &str) -> bool {
         // before composer 1.9, origin URLs had no port number in them
-        let bc_origin_url = Preg::replace(php_regex!("{:\\d+}"), "", origin_url);
+        let bc_origin_url = preg_replace(php_regex!("{:\\d+}"), "", origin_url);
 
         let gitlab_domains = self.config.borrow_mut().get("gitlab-domains");
         if !in_array_strict(origin_url.to_string(), gitlab_domains.values())