refactor(preg): drop the offset argument from preg_match

Every call site but one passed offset 0. The remaining one, the UTF-8
chunking loop in Application, slices the subject instead: its pattern has
no anchor or lookaround, so matching a suffix is equivalent to starting
the search at that offset.

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

1 files changed, 3 insertions, 4 deletions

diff --git a/crates/shirabe/src/command/completion_trait.rs b/crates/shirabe/src/command/completion_trait.rs
index ce0aef58..eda80164 100644
--- a/crates/shirabe/src/command/completion_trait.rs
+++ b/crates/shirabe/src/command/completion_trait.rs
@@ -11,7 +11,7 @@ use crate::repository::RepositoryInterfaceHandle;
 use crate::repository::RootPackageRepository;
 use crate::repository::repository_interface::{SEARCH_NAME, SEARCH_VENDOR, SearchResult};
 use indexmap::IndexMap;
-use shirabe_php_shim::{PhpMixed, php_regex, preg_match2, preg_quote};
+use shirabe_php_shim::{PhpMixed, php_regex, preg_match, preg_quote};
 
 /// Adds completion to arguments and options.
 ///
@@ -256,10 +256,9 @@ pub trait CompletionTrait: BaseCommand {
     /// platform packages from the ones available on the currently-running PHP
     fn suggest_available_package_incl_platform(&self) -> SuggestedValues {
         SuggestedValues::Closure(Box::new(|this, input, suggestions| {
-            let matches = if preg_match2(
+            let matches = if preg_match(
                 php_regex!(r"{^(ext|lib|php)(-|$)|^com}"),
                 &input.get_completion_value(),
-                0,
             )
             .is_some()
             {
@@ -297,7 +296,7 @@ pub trait CompletionTrait: BaseCommand {
             let mut names: Vec<String> = vec![];
             for package in repos.get_packages()? {
                 let name = package.get_name();
-                if preg_match2(pattern.clone(), &name, 0).is_some() {
+                if preg_match(pattern.clone(), &name).is_some() {
                     names.push(name);
                 }
             }