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/package/locker.rs b/crates/shirabe/src/package/locker.rs
index fee45fef..017bcb6a 100644
--- a/crates/shirabe/src/package/locker.rs
+++ b/crates/shirabe/src/package/locker.rs
@@ -28,7 +28,7 @@ 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, preg_match2, realpath, strcmp, strtolower, touch2, trim, usort,
+    is_int, ksort, php_regex, preg_match, realpath, strcmp, strtolower, touch2, trim, usort,
 };
 use shirabe_seld_json_lint::ParsingException;
 
@@ -823,7 +823,7 @@ impl Locker {
                             ),
                             None,
                         );
-                        if preg_match2(php_regex!(r"{^\s*\d+\s*$}"), &output_str, 0).is_some() {
+                        if preg_match(php_regex!(r"{^\s*\d+\s*$}"), &output_str).is_some() {
                             let ts = trim(&output_str, None).parse::<i64>().unwrap_or(0);
                             datetime = chrono::DateTime::from_timestamp(ts, 0);
                         }
@@ -842,10 +842,9 @@ impl Locker {
                         ]),
                         &mut output,
                         path.as_deref(),
-                    )? && let Some(m) = preg_match2(
+                    )? && let Some(m) = preg_match(
                         php_regex!(r"{^\s*(\d+)\s*}"),
                         output.as_string().unwrap_or(""),
-                        0,
                     ) {
                         let ts = m
                             .get(1)