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>

12 files changed, 97 insertions, 89 deletions

diff --git a/crates/shirabe/src/package/archiver/archivable_files_finder.rs b/crates/shirabe/src/package/archiver/archivable_files_finder.rs
index 8fba18cb..7a1797bf 100644
--- a/crates/shirabe/src/package/archiver/archivable_files_finder.rs
+++ b/crates/shirabe/src/package/archiver/archivable_files_finder.rs
@@ -4,8 +4,7 @@ use crate::package::archiver::BaseExcludeFilter;
 use crate::package::archiver::ComposerExcludeFilter;
 use crate::package::archiver::GitExcludeFilter;
 use crate::util::Filesystem;
-use shirabe_pcre::Preg;
-use shirabe_php_shim::{RuntimeException, preg_quote, realpath};
+use shirabe_php_shim::{RuntimeException, preg_quote, preg_replace, realpath};
 use shirabe_symfony_finder::Finder;
 use std::path::{Path, PathBuf};
 
@@ -56,7 +55,7 @@ impl ArchivableFilesFinder {
                 return false;
             }
 
-            let relative_path = Preg::replace(
+            let relative_path = preg_replace(
                 format!("#^{}#", preg_quote(&sources_clone, Some('#'))),
                 "",
                 &fs.normalize_path(&realpath.to_string_lossy()),
diff --git a/crates/shirabe/src/package/archiver/archive_manager.rs b/crates/shirabe/src/package/archiver/archive_manager.rs
index a0216d88..4f9e2ddc 100644
--- a/crates/shirabe/src/package/archiver/archive_manager.rs
+++ b/crates/shirabe/src/package/archiver/archive_manager.rs
@@ -10,10 +10,9 @@ use crate::util::Filesystem;
 use crate::util::SyncHelper;
 use crate::util::r#loop::Loop;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
 use shirabe_php_shim::{
-    InvalidArgumentException, RuntimeException, bin2hex, file_exists, php_regex, random_bytes,
-    realpath, sys_get_temp_dir,
+    InvalidArgumentException, RuntimeException, bin2hex, file_exists, php_regex, preg_match2,
+    preg_replace, random_bytes, realpath, sys_get_temp_dir,
 };
 
 pub struct ArchiveManager {
@@ -58,7 +57,7 @@ impl ArchiveManager {
     ) -> anyhow::Result<IndexMap<String, String>> {
         let base_name = match package.get_archive_name() {
             Some(name) => name,
-            None => Preg::replace(php_regex!("#[^a-z0-9-_]#i"), "-", &package.get_name()),
+            None => preg_replace(php_regex!("#[^a-z0-9-_]#i"), "-", &package.get_name()),
         };
 
         let mut parts: IndexMap<String, String> = IndexMap::new();
@@ -66,7 +65,7 @@ impl ArchiveManager {
 
         let dist_reference = package.get_dist_reference();
         if let Some(ref dist_ref) = dist_reference {
-            if Preg::is_match(php_regex!("{^[a-f0-9]{40}$}"), dist_ref) {
+            if preg_match2(php_regex!("{^[a-f0-9]{40}$}"), dist_ref, 0).is_some() {
                 parts.insert("dist_reference".to_string(), dist_ref.to_string());
                 if let Some(dist_type) = package.get_dist_type() {
                     parts.insert("dist_type".to_string(), dist_type);
diff --git a/crates/shirabe/src/package/archiver/base_exclude_filter.rs b/crates/shirabe/src/package/archiver/base_exclude_filter.rs
index e5487038..16a189a8 100644
--- a/crates/shirabe/src/package/archiver/base_exclude_filter.rs
+++ b/crates/shirabe/src/package/archiver/base_exclude_filter.rs
@@ -1,6 +1,6 @@
 //! ref: composer/src/Composer/Package/Archiver/BaseExcludeFilter.php
 
-use shirabe_pcre::Preg;
+use shirabe_php_shim::preg_match2;
 use shirabe_symfony_finder::Glob;
 
 #[derive(Debug)]
@@ -86,7 +86,7 @@ pub trait BaseExcludeFilter {
                 relative_path
             };
 
-            if Preg::is_match(pattern, path) {
+            if preg_match2(pattern, path, 0).is_some() {
                 exclude = !negate;
             }
         }
diff --git a/crates/shirabe/src/package/loader/array_loader.rs b/crates/shirabe/src/package/loader/array_loader.rs
index 21811f14..b6b5ac1e 100644
--- a/crates/shirabe/src/package/loader/array_loader.rs
+++ b/crates/shirabe/src/package/loader/array_loader.rs
@@ -17,11 +17,10 @@ use crate::package::loader::LoaderInterface;
 use crate::package::version::VersionParser;
 use chrono::Utc;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
 use shirabe_php_shim::{
     AnyThrowable, E_USER_DEPRECATED, PhpMixed, UnexpectedValueException, is_scalar, is_string,
-    json_encode, ltrim, php_regex, stripos, strpos, strtolower, strval, substr, trigger_error,
-    trim,
+    json_encode, ltrim, php_regex, preg_match2, preg_replace, stripos, strpos, strtolower, strval,
+    substr, trigger_error, trim,
 };
 
 #[derive(Debug)]
@@ -340,7 +339,7 @@ impl ArrayLoader {
             && !shirabe_php_shim::empty(time_value)
         {
             let time_str = time_value.as_string().unwrap_or("");
-            let time = if Preg::is_match(php_regex!(r"/^\d++$/D"), time_str) {
+            let time = if preg_match2(php_regex!(r"/^\d++$/D"), time_str, 0).is_some() {
                 format!("@{}", time_str)
             } else {
                 time_str.to_string()
@@ -510,7 +509,7 @@ impl ArrayLoader {
         if let Some(alias_normalized) = alias_normalized
             && !alias_normalized.is_empty()
         {
-            let pretty_alias = Preg::replace(php_regex!(r"{(\.9{7})+}"), ".x", &alias_normalized);
+            let pretty_alias = preg_replace(php_regex!(r"{(\.9{7})+}"), ".x", &alias_normalized);
 
             return Ok(match package {
                 CompleteOrRootPackage::Root(root) => RootAliasPackageHandle::new(
@@ -771,7 +770,7 @@ impl ArrayLoader {
             && default_branch_is_true
             && self
                 .version_parser
-                .parse_numeric_alias_prefix(&Preg::replace(php_regex!(r"{^v}"), "", &version_str))
+                .parse_numeric_alias_prefix(&preg_replace(php_regex!(r"{^v}"), "", &version_str))
                 .is_none()
         {
             return Ok(Some(VersionParser::DEFAULT_BRANCH_ALIAS.to_string()));
diff --git a/crates/shirabe/src/package/loader/root_package_loader.rs b/crates/shirabe/src/package/loader/root_package_loader.rs
index 012c30fd..bc49ffc0 100644
--- a/crates/shirabe/src/package/loader/root_package_loader.rs
+++ b/crates/shirabe/src/package/loader/root_package_loader.rs
@@ -15,9 +15,9 @@ use crate::repository::RepositoryManager;
 use crate::util::Platform;
 use crate::util::ProcessExecutor;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
 use shirabe_php_shim::{
-    PhpMixed, RuntimeException, UnexpectedValueException, php_regex, preg_split, strtolower,
+    PhpMixed, RuntimeException, UnexpectedValueException, php_regex, preg_match2, preg_replace,
+    preg_split, strtolower,
 };
 
 #[derive(Debug)]
@@ -252,9 +252,10 @@ impl RootPackageLoader {
         mut aliases: Vec<IndexMap<String, String>>,
     ) -> Vec<IndexMap<String, String>> {
         for (req_name, req_version) in requires {
-            if let Some(m) = Preg::is_match3(
+            if let Some(m) = preg_match2(
                 php_regex!(r"{(?:^|\| *|, *)([^,\s#|]+)(?:#[^ ]+)? +as +([^,\s|]+)(?:$| *\|| *,)}"),
                 req_version,
+                0,
             ) {
                 let m1 = m.get(1).unwrap_or_default().to_string();
                 let m2 = m.get(2).unwrap_or_default().to_string();
@@ -316,7 +317,7 @@ impl RootPackageLoader {
 
             let mut matched = false;
             for constraint in &constraints {
-                if let Some(m) = Preg::is_match3(&pattern, constraint) {
+                if let Some(m) = preg_match2(&pattern, constraint, 0) {
                     let name = strtolower(req_name);
                     let m1 = m.get(1).unwrap_or_default().to_string();
                     let normalized_m1 = VersionParser::normalize_stability(&m1).unwrap_or_default();
@@ -336,8 +337,8 @@ impl RootPackageLoader {
 
             for constraint in &constraints {
                 let req_version_stripped =
-                    Preg::replace(php_regex!(r"{^([^,\s@]+) as .+$}"), "$1", constraint);
-                if Preg::is_match(php_regex!(r"{^[^,\s@]+$}"), &req_version_stripped) {
+                    preg_replace(php_regex!(r"{^([^,\s@]+) as .+$}"), "$1", constraint);
+                if preg_match2(php_regex!(r"{^[^,\s@]+$}"), &req_version_stripped, 0).is_some() {
                     let stability_name = VersionParser::parse_stability(&req_version_stripped);
                     if stability_name != "stable" {
                         let name = strtolower(req_name);
@@ -361,8 +362,8 @@ impl RootPackageLoader {
         mut references: IndexMap<String, String>,
     ) -> IndexMap<String, String> {
         for (req_name, req_version) in requires {
-            let req_version = Preg::replace(php_regex!(r"{^([^,\s@]+) as .+$}"), "$1", req_version);
-            if let Some(m) = Preg::is_match3(php_regex!(r"{^[^,\s@]+?#([a-f0-9]+)$}"), &req_version)
+            let req_version = preg_replace(php_regex!(r"{^([^,\s@]+) as .+$}"), "$1", req_version);
+            if let Some(m) = preg_match2(php_regex!(r"{^[^,\s@]+?#([a-f0-9]+)$}"), &req_version, 0)
                 && VersionParser::parse_stability(&req_version) == "dev"
             {
                 let name = strtolower(req_name);
diff --git a/crates/shirabe/src/package/loader/validating_array_loader.rs b/crates/shirabe/src/package/loader/validating_array_loader.rs
index 6b9bea91..5ac1a929 100644
--- a/crates/shirabe/src/package/loader/validating_array_loader.rs
+++ b/crates/shirabe/src/package/loader/validating_array_loader.rs
@@ -7,12 +7,11 @@ use crate::package::version::VersionParser;
 use crate::package::{STABILITIES, SUPPORTED_LINK_TYPES};
 use crate::repository::PlatformRepository;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
 use shirabe_php_shim::{
     CmpOp, E_USER_DEPRECATED, PHP_EOL, PhpMixed, array_intersect_key, array_values,
     filter_var_email, get_debug_type, is_array, is_bool, is_int, is_numeric, is_scalar, is_string,
-    json_encode, parse_url, php_regex, php_to_string, str_replace, strcasecmp, strtolower,
-    strtotime, substr, trigger_error, trim, var_export,
+    json_encode, parse_url, php_regex, php_to_string, preg_match2, preg_replace, str_replace,
+    strcasecmp, strtolower, strtotime, substr, trigger_error, trim, var_export,
 };
 use shirabe_semver::Intervals;
 use shirabe_semver::constraint::AnyConstraint;
@@ -74,12 +73,15 @@ impl ValidatingArrayLoader {
             return None;
         }
 
-        if !Preg::is_match(
+        if preg_match2(
             php_regex!(
                 "{^[a-z0-9](?:[_.-]?[a-z0-9]++)*+/[a-z0-9](?:(?:[_.]|-{1,2})?[a-z0-9]++)*+$}iD"
             ),
             name,
-        ) {
+            0,
+        )
+        .is_none()
+        {
             return Some(format!(
                 "{} is invalid, it should have a vendor name, a forward slash, and a package name. The vendor and package name can be words separated by -, . or _. The complete name should match \"^[a-z0-9]([_.-]?[a-z0-9]+)*/[a-z0-9](([_.]?|-{{0,2}})[a-z0-9]+)*$\".",
                 name
@@ -100,14 +102,14 @@ impl ValidatingArrayLoader {
             ));
         }
 
-        if Preg::is_match(php_regex!("{\\.json$}"), name) {
+        if preg_match2(php_regex!("{\\.json$}"), name, 0).is_some() {
             return Some(format!(
                 "{} is invalid, package names can not end in .json, consider renaming it or perhaps using a -json suffix instead.",
                 name
             ));
         }
 
-        if Preg::is_match(php_regex!("{[A-Z]}"), name) {
+        if preg_match2(php_regex!("{[A-Z]}"), name, 0).is_some() {
             if is_link {
                 return Some(format!(
                     "{} is invalid, it should not contain uppercase characters. Please use {} instead.",
@@ -116,7 +118,7 @@ impl ValidatingArrayLoader {
                 ));
             }
 
-            let suggest_name = Preg::replace(
+            let suggest_name = preg_replace(
                 php_regex!("{(?:([a-z])([A-Z])|([A-Z])([A-Z][a-z]))}"),
                 "\\1\\3-\\2\\4",
                 name,
@@ -141,7 +143,7 @@ impl ValidatingArrayLoader {
             .as_string()
             .unwrap_or("")
             .to_string();
-        if !Preg::is_match(format!("{{^{}$}}u", regex), &value) {
+        if preg_match2(format!("{{^{}$}}u", regex), &value, 0).is_none() {
             let message = format!(
                 "{} : invalid value ({}), must match {}",
                 property, value, regex
@@ -256,7 +258,7 @@ impl ValidatingArrayLoader {
 
             if let Some(regex_str) = regex {
                 let value_str = php_to_string(&value);
-                if !Preg::is_match(format!("{{^{}$}}u", regex_str), &value_str) {
+                if preg_match2(format!("{{^{}$}}u", regex_str), &value_str, 0).is_none() {
                     self.warnings.borrow_mut().push(format!(
                         "{}.{} : invalid value ({}), must match {}",
                         property, key, value_str, regex_str
@@ -1185,7 +1187,8 @@ impl LoaderInterface for ValidatingArrayLoader {
                         self.warnings
                             .borrow_mut()
                             .push(format!("{}.{}", link_type, err));
-                    } else if !Preg::is_match(php_regex!("{^[A-Za-z0-9_./-]+$}"), &package) {
+                    } else if preg_match2(php_regex!("{^[A-Za-z0-9_./-]+$}"), &package, 0).is_none()
+                    {
                         self.errors.borrow_mut().push(format!(
                             "{}.{} : invalid key, package names must be strings containing only [A-Za-z0-9_./-]",
                             link_type, package
@@ -1448,7 +1451,7 @@ impl LoaderInterface for ValidatingArrayLoader {
                 }
                 if let Some(ref_val) = section.get("reference").filter(|_| isset("reference")) {
                     let ref_str = php_to_string(ref_val);
-                    if Preg::is_match(php_regex!("{^\\s*-}"), &ref_str) {
+                    if preg_match2(php_regex!("{^\\s*-}"), &ref_str, 0).is_some() {
                         self.errors.borrow_mut().push(format!(
                             "{}.reference : must not start with a \"-\", \"{}\" given",
                             src_type, ref_str
@@ -1457,7 +1460,7 @@ impl LoaderInterface for ValidatingArrayLoader {
                 }
                 if let Some(url_val) = section.get("url").filter(|_| isset("url")) {
                     let url_str = php_to_string(url_val);
-                    if Preg::is_match(php_regex!("{^\\s*-}"), &url_str) {
+                    if preg_match2(php_regex!("{^\\s*-}"), &url_str, 0).is_some() {
                         self.errors.borrow_mut().push(format!(
                             "{}.url : must not start with a \"-\", \"{}\" given",
                             src_type, url_str
diff --git a/crates/shirabe/src/package/locker.rs b/crates/shirabe/src/package/locker.rs
index 7d45e573..fee45fef 100644
--- a/crates/shirabe/src/package/locker.rs
+++ b/crates/shirabe/src/package/locker.rs
@@ -24,12 +24,11 @@ use crate::repository::RootPackageRepository;
 use crate::util::Git as GitUtil;
 use crate::util::ProcessExecutor;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
 use shirabe_php_shim::Catch as _;
 use shirabe_php_shim::{
     DATE_RFC3339, LogicException, PhpMixed, RuntimeException, array_intersect, array_keys,
     array_map, array_merge, file_get_contents, filemtime, function_exists, hash, in_array_loose,
-    is_int, ksort, php_regex, realpath, strcmp, strtolower, touch2, trim, usort,
+    is_int, ksort, php_regex, preg_match2, realpath, strcmp, strtolower, touch2, trim, usort,
 };
 use shirabe_seld_json_lint::ParsingException;
 
@@ -824,7 +823,7 @@ impl Locker {
                             ),
                             None,
                         );
-                        if Preg::is_match(php_regex!(r"{^\s*\d+\s*$}"), &output_str) {
+                        if preg_match2(php_regex!(r"{^\s*\d+\s*$}"), &output_str, 0).is_some() {
                             let ts = trim(&output_str, None).parse::<i64>().unwrap_or(0);
                             datetime = chrono::DateTime::from_timestamp(ts, 0);
                         }
@@ -843,9 +842,10 @@ impl Locker {
                         ]),
                         &mut output,
                         path.as_deref(),
-                    )? && let Some(m) = Preg::is_match3(
+                    )? && let Some(m) = preg_match2(
                         php_regex!(r"{^\s*(\d+)\s*}"),
                         output.as_string().unwrap_or(""),
+                        0,
                     ) {
                         let ts = m
                             .get(1)
diff --git a/crates/shirabe/src/package/package.rs b/crates/shirabe/src/package/package.rs
index 2e2d5feb..ddeb2932 100644
--- a/crates/shirabe/src/package/package.rs
+++ b/crates/shirabe/src/package/package.rs
@@ -10,9 +10,9 @@ use crate::repository::RepositoryInterfaceWeakHandle;
 use crate::util::ComposerMirror;
 use chrono::{DateTime, Utc};
 use indexmap::{IndexMap, IndexSet};
-use shirabe_pcre::Preg;
 use shirabe_php_shim::{
-    E_USER_DEPRECATED, LogicException, PhpMixed, php_regex, strpos, trigger_error,
+    E_USER_DEPRECATED, LogicException, PhpMixed, PregMatches, php_regex, preg_match2, preg_replace,
+    preg_replace_callback, strpos, trigger_error,
 };
 
 /// Mirror entry, e.g. `['url' => 'https://...', 'preferred' => true]`.
@@ -139,7 +139,7 @@ impl Package {
     pub fn get_target_dir(&self) -> Option<String> {
         let target_dir = self.target_dir.as_ref()?;
 
-        let replaced = Preg::replace(
+        let replaced = preg_replace(
             php_regex!("{ (?:^|[\\\\/]+) \\.\\.? (?:[\\\\/]+|$) (?:\\.\\.? (?:[\\\\/]+|$) )*}x"),
             "/",
             target_dir,
@@ -416,12 +416,14 @@ impl Package {
         // only bitbucket, github and gitlab have auto generated dist URLs that easily allow replacing the reference in the dist URL
         // TODO generalize this a bit for self-managed/on-prem versions? Some kind of replace token in dist urls which allow this?
         if self.get_dist_url().is_some()
-            && Preg::is_match(
+            && preg_match2(
                 php_regex!(
                     "{^https?://(?:(?:www\\.)?bitbucket\\.org|(api\\.)?github\\.com|(?:www\\.)?gitlab\\.com)/}i"
                 ),
                 &self.get_dist_url().unwrap_or_default(),
+                0,
             )
+            .is_some()
         {
             self.set_dist_reference(Some(reference.clone()));
             // Regex pattern compatibility:
@@ -431,14 +433,17 @@ impl Package {
             // lookaround, the capturing version consumes its boundary delimiter, so two 40-hex
             // SHAs sharing a single `/` between them would not both match; harmless here since a
             // dist URL never carries more than one SHA reference.
-            self.set_dist_url(Some(Preg::replace_callback(
-                php_regex!("{(/|sha=)[a-f0-9]{40}(/|$)}i"),
-                |m: &shirabe_pcre::PregMatches| -> String {
-                    let get = |i: usize| -> String { m.get(i).unwrap_or_default().to_string() };
-                    format!("{}{}{}", get(1), reference, get(2))
-                },
-                &self.get_dist_url().unwrap_or_default(),
-            )));
+            self.set_dist_url(Some(
+                preg_replace_callback(
+                    php_regex!("{(/|sha=)[a-f0-9]{40}(/|$)}i"),
+                    |m: &PregMatches| -> anyhow::Result<String> {
+                        let get = |i: usize| -> String { m.get(i).unwrap_or_default().to_string() };
+                        Ok(format!("{}{}{}", get(1), reference, get(2)))
+                    },
+                    &self.get_dist_url().unwrap_or_default(),
+                )
+                .expect("the replacement callback cannot fail"),
+            ));
         } else if self.get_dist_reference().is_some() {
             // update the dist reference if there was one, but if none was provided ignore it
             self.set_dist_reference(Some(reference));
diff --git a/crates/shirabe/src/package/version/version_bumper.rs b/crates/shirabe/src/package/version/version_bumper.rs
index 6911fb14..50808916 100644
--- a/crates/shirabe/src/package/version/version_bumper.rs
+++ b/crates/shirabe/src/package/version/version_bumper.rs
@@ -5,8 +5,9 @@ use crate::package::dumper::ArrayDumper;
 use crate::package::loader::ArrayLoader;
 use crate::package::version::VersionParser;
 use crate::util::Platform;
-use shirabe_pcre::{CaptureKey, Preg};
-use shirabe_php_shim::php_regex;
+use shirabe_php_shim::{
+    CaptureKey, php_regex, preg_match_all_offset_capture, preg_match2, preg_replace,
+};
 use shirabe_semver::Intervals;
 use shirabe_semver::constraint::AnyConstraint;
 
@@ -45,12 +46,12 @@ impl VersionBumper {
             return Ok(pretty_constraint);
         }
 
-        let major = Preg::replace(php_regex!(r"{^([1-9][0-9]*|0\.\d+).*}"), "$1", &version);
+        let major = preg_replace(php_regex!(r"{^([1-9][0-9]*|0\.\d+).*}"), "$1", &version);
         let version_without_suffix =
-            Preg::replace(php_regex!(r"{(?:\.(?:0|9999999))+(-dev)?$}"), "", &version);
+            preg_replace(php_regex!(r"{(?:\.(?:0|9999999))+(-dev)?$}"), "", &version);
         let new_pretty_constraint = format!("^{}", version_without_suffix);
 
-        if !Preg::is_match(php_regex!(r"{^\^\d+(\.\d+)*$}"), &new_pretty_constraint) {
+        if preg_match2(php_regex!(r"{^\^\d+(\.\d+)*$}"), &new_pretty_constraint, 0).is_none() {
             return Ok(pretty_constraint);
         }
 
@@ -77,7 +78,7 @@ impl VersionBumper {
             major = major
         );
 
-        let matches = Preg::is_match_all_with_offsets3(&pattern, &pretty_constraint);
+        let matches = preg_match_all_offset_capture(&pattern, &pretty_constraint);
         if matches.occurrence_count() > 0 {
             let mut modified = pretty_constraint.clone();
             let constraint_matches = matches
diff --git a/crates/shirabe/src/package/version/version_guesser.rs b/crates/shirabe/src/package/version/version_guesser.rs
index c85000e7..fd7fe389 100644
--- a/crates/shirabe/src/package/version/version_guesser.rs
+++ b/crates/shirabe/src/package/version/version_guesser.rs
@@ -12,11 +12,10 @@ use crate::util::ProcessExecutor;
 use crate::util::Svn as SvnUtil;
 use crate::util::sync_executor;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
 use shirabe_php_shim::{
     PhpMixed, RuntimeException, array_keys, array_map, array_merge, empty, function_exists,
-    implode, is_string, json_encode, php_regex, preg_quote, str_replace, strlen, strnatcasecmp,
-    strpos, substr, trim, usort,
+    implode, is_string, json_encode, php_regex, preg_match2, preg_quote, preg_replace, str_replace,
+    strlen, strnatcasecmp, strpos, substr, trim, usort,
 };
 
 /// Seam over the parts of [`VersionGuesser`] that consumers depend on, so they can be exercised
@@ -157,12 +156,14 @@ impl VersionGuesser {
         }
 
         if "-dev" == substr(version_data.version.as_deref().unwrap_or(""), -4, None)
-            && Preg::is_match(
+            && preg_match2(
                 php_regex!(r"{\.9{7}}"),
                 version_data.version.as_deref().unwrap_or(""),
+                0,
             )
+            .is_some()
         {
-            version_data.pretty_version = Some(Preg::replace(
+            version_data.pretty_version = Some(preg_replace(
                 php_regex!(r"{(\.9{7})+}"),
                 ".x",
                 version_data.version.as_deref().unwrap_or(""),
@@ -181,12 +182,14 @@ impl VersionGuesser {
                     -4,
                     None,
                 )
-            && Preg::is_match(
+            && preg_match2(
                 php_regex!(r"{\.9{7}}"),
                 version_data.feature_version.as_deref().unwrap_or(""),
+                0,
             )
+            .is_some()
         {
-            version_data.feature_pretty_version = Some(Preg::replace(
+            version_data.feature_pretty_version = Some(preg_replace(
                 php_regex!(r"{(\.9{7})+}"),
                 ".x",
                 version_data.feature_version.as_deref().unwrap_or(""),
@@ -229,11 +232,12 @@ impl VersionGuesser {
             // find current branch and collect all branch names
             for branch in self.process.borrow().split_lines(&output) {
                 if !branch.is_empty()
-                    && let Some(m) = Preg::is_match3(
+                    && let Some(m) = preg_match2(
                         php_regex!(
                             r"{^(?:\* ) *(\(no branch\)|\(detached from \S+\)|\(HEAD detached at \S+\)|\S+) *([a-f0-9]+) .*$}"
                         ),
                         &branch,
+                        0,
                     )
                 {
                     let g1 = m.get(1).unwrap_or_default().to_string();
@@ -256,12 +260,13 @@ impl VersionGuesser {
                 }
 
                 if !branch.is_empty()
-                    && Preg::is_match3(php_regex!(r"{^ *.+/HEAD }"), &branch).is_none()
-                    && let Some(m) = Preg::is_match3(
+                    && preg_match2(php_regex!(r"{^ *.+/HEAD }"), &branch, 0).is_none()
+                    && let Some(m) = preg_match2(
                         php_regex!(
                             r"{^(?:\* )? *((?:remotes/(?:origin|upstream)/)?[^\s/]+) *([a-f0-9]+) .*$}"
                         ),
                         &branch,
+                        0,
                     )
                 {
                     branches.push(m.get(1).unwrap_or_default().to_string());
@@ -499,8 +504,7 @@ impl VersionGuesser {
         )
         .is_some();
         if !has_branch_alias || has_self_version {
-            let branch =
-                Preg::replace(php_regex!(r"{^dev-}"), "", version.as_deref().unwrap_or(""));
+            let branch = preg_replace(php_regex!(r"{^dev-}"), "", version.as_deref().unwrap_or(""));
             let mut length = i64::MAX;
 
             // return directly, if branch is configured to be non-feature branch
@@ -534,7 +538,7 @@ impl VersionGuesser {
                 for (index, candidate) in branches.iter().enumerate() {
                     let index = index as i64;
                     let candidate_version =
-                        Preg::replace(php_regex!(r"{^remotes/\S+/}"), "", candidate);
+                        preg_replace(php_regex!(r"{^remotes/\S+/}"), "", candidate);
 
                     // do not compare against itself or other feature branches
                     if candidate == &branch
@@ -608,13 +612,10 @@ impl VersionGuesser {
             non_feature_branches = implode("|", &names);
         }
 
-        !Preg::is_match(
-            format!(
-                r"{{^({}|master|main|latest|next|current|support|tip|trunk|default|develop|\d+\..+)$}}",
-                non_feature_branches,
-            ),
-            branch_name.unwrap_or(""),
-        )
+        preg_match2(format!(
+            r"{{^({}|master|main|latest|next|current|support|tip|trunk|default|develop|\d+\..+)$}}",
+            non_feature_branches,
+        ), branch_name.unwrap_or(""), 0).is_none()
     }
 
     fn guess_fossil_version(&mut self, path: &str) -> anyhow::Result<VersionData> {
@@ -697,7 +698,7 @@ impl VersionGuesser {
                 trunk_path, branches_path, tags_path,
             );
 
-            if let Some(matches) = Preg::is_match3(&url_pattern, &output) {
+            if let Some(matches) = preg_match2(&url_pattern, &output, 0) {
                 let m1 = matches.get(1).unwrap_or_default();
                 let m2 = matches.get(2);
                 let m3 = matches.get(3);
@@ -750,7 +751,7 @@ impl VersionGuesser {
                 .into());
             }
         };
-        if let Some(m) = Preg::is_match3(php_regex!(r"{^(\d+(?:\.\d+)*)-dev$}i"), &version) {
+        if let Some(m) = preg_match2(php_regex!(r"{^(\d+(?:\.\d+)*)-dev$}i"), &version, 0) {
             return Ok(format!("{}.x-dev", m.get(1).unwrap_or_default()));
         }
 
diff --git a/crates/shirabe/src/package/version/version_parser.rs b/crates/shirabe/src/package/version/version_parser.rs
index c16583e0..ad1a05cf 100644
--- a/crates/shirabe/src/package/version/version_parser.rs
+++ b/crates/shirabe/src/package/version/version_parser.rs
@@ -2,8 +2,7 @@
 
 use crate::repository::PlatformRepository;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
-use shirabe_php_shim::php_regex;
+use shirabe_php_shim::{php_regex, preg_match2, preg_replace};
 use shirabe_semver::Semver;
 use shirabe_semver::VersionParser as SemverVersionParser;
 use shirabe_semver::constraint::AnyConstraint;
@@ -50,7 +49,7 @@ impl VersionParser {
         let count = pairs.len();
         let mut i = 0_usize;
         while i < count {
-            let mut pair = Preg::replace(
+            let mut pair = preg_replace(
                 php_regex!(r"{^([^=: ]+)[=: ](.*)$}"),
                 "$1 $2",
                 pairs[i].trim(),
@@ -58,10 +57,12 @@ impl VersionParser {
             if !pair.contains(' ')
                 && i + 1 < count
                 && !pairs[i + 1].contains('/')
-                && !Preg::is_match(
+                && preg_match2(
                     php_regex!(r"{(?<=[a-z0-9_/-])\*|\*(?=[a-z0-9_/-])}i"),
                     &pairs[i + 1],
+                    0,
                 )
+                .is_none()
                 && !PlatformRepository::is_platform_package(&pairs[i + 1])
             {
                 pair += &format!(" {}", pairs[i + 1]);
diff --git a/crates/shirabe/src/package/version/version_selector.rs b/crates/shirabe/src/package/version/version_selector.rs
index 1661c749..c7b7b31e 100644
--- a/crates/shirabe/src/package/version/version_selector.rs
+++ b/crates/shirabe/src/package/version/version_selector.rs
@@ -16,8 +16,7 @@ use crate::repository::PlatformRepository;
 use crate::repository::RepositoryInterface;
 use crate::repository::RepositorySetInterface;
 use indexmap::IndexMap;
-use shirabe_pcre::Preg;
-use shirabe_php_shim::{CmpOp, php_regex, strtolower, version_compare};
+use shirabe_php_shim::{CmpOp, php_regex, preg_match2, preg_replace, strtolower, version_compare};
 use shirabe_semver::constraint::AnyConstraint;
 use shirabe_semver::constraint::SimpleConstraint;
 
@@ -280,7 +279,7 @@ impl VersionSelector {
         if let Some(extra) = extra
             && extra != VersionParser::DEFAULT_BRANCH_ALIAS
         {
-            let new_extra = Preg::replace(
+            let new_extra = preg_replace(
                 php_regex!(r"{^(\d+\.\d+\.\d+)(\.9999999)-dev$}"),
                 "$1.0",
                 &extra,
@@ -303,7 +302,7 @@ impl VersionSelector {
         let semantic_version_parts: Vec<&str> = version.split('.').collect();
 
         if semantic_version_parts.len() == 4
-            && Preg::is_match(php_regex!(r"{^\d+\D?}"), semantic_version_parts[3])
+            && preg_match2(php_regex!(r"{^\d+\D?}"), semantic_version_parts[3], 0).is_some()
         {
             let mut parts: Vec<String> = semantic_version_parts
                 .iter()