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, 3 insertions, 3 deletions

diff --git a/crates/shirabe/src/command/global_command.rs b/crates/shirabe/src/command/global_command.rs
index 21375141..f31d29c4 100644
--- a/crates/shirabe/src/command/global_command.rs
+++ b/crates/shirabe/src/command/global_command.rs
@@ -8,9 +8,8 @@ use crate::console::input::InputArgument;
 use crate::factory::Factory;
 use crate::util::Filesystem;
 use crate::util::Platform;
-use shirabe_pcre::Preg;
 use shirabe_php_shim::{
-    LogicException, RuntimeException, chdir, impl_php_class, php_regex, preg_split,
+    LogicException, RuntimeException, chdir, impl_php_class, php_regex, preg_replace2, preg_split,
 };
 use shirabe_symfony_console::command::Command;
 use shirabe_symfony_console::completion::CompletionInput;
@@ -105,11 +104,12 @@ impl GlobalCommand {
             ));
         }
 
-        let new_input_str = Preg::replace4(
+        let new_input_str = preg_replace2(
             php_regex!(r"{\bg(?:l(?:o(?:b(?:a(?:l)?)?)?)?)?\b}"),
             "",
             &Self::input_to_string(&*input.borrow())?,
             1,
+            None,
         );
         self.reset_composer()?;