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/command/reinstall_command.rs b/crates/shirabe/src/command/reinstall_command.rs
index 9ef45fbf..05c277d5 100644
--- a/crates/shirabe/src/command/reinstall_command.rs
+++ b/crates/shirabe/src/command/reinstall_command.rs
@@ -15,8 +15,7 @@ use crate::plugin::CommandEvent;
 use crate::plugin::PluginEvents;
 use crate::script::ScriptEvents;
 use crate::util::Platform;
-use shirabe_pcre::Preg;
-use shirabe_php_shim::{InvalidArgumentException, impl_php_class};
+use shirabe_php_shim::{InvalidArgumentException, impl_php_class, preg_match2};
 use shirabe_symfony_console::command::Command;
 use shirabe_symfony_console::input::InputInterface;
 use shirabe_symfony_console::output::OutputInterface;
@@ -137,7 +136,7 @@ impl Command for ReinstallCommand {
                 let pattern_regexp = base_package::package_name_to_regexp(pattern);
                 let mut matched = false;
                 for package in local_repo.get_canonical_packages()? {
-                    if Preg::is_match(&pattern_regexp, &package.get_name()) {
+                    if preg_match2(&pattern_regexp, &package.get_name(), 0).is_some() {
                         matched = true;
                         package_names_to_reinstall.push(package.get_name());
                         packages_to_reinstall.push(package);