refactor(pcre): consolidate duplicate preg_* shim helpers

The preg.rs shim had several near-duplicate functions: simple helpers
re-implementing logic already covered by their full-featured `2`
variants. Delegate or remove the redundant ones while preserving
behavior, and migrate the affected callers:

- preg_replace / preg_split now delegate to preg_replace2 / preg_split2
- preg_match_all_simple removed; its caller uses preg_match_all
- preg_split_chars removed; its caller uses a char-boundary iterator
- preg_match_offset removed; its callers use preg_match2 directly

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/crates/shirabe-external-packages/src/symfony/console/formatter/output_formatter.rs b/crates/shirabe-external-packages/src/symfony/console/formatter/output_formatter.rs
index 27a74e6..0de90be 100644
--- a/crates/shirabe-external-packages/src/symfony/console/formatter/output_formatter.rs
+++ b/crates/shirabe-external-packages/src/symfony/console/formatter/output_formatter.rs
@@ -126,12 +126,10 @@ impl OutputFormatter {
                     .expect("preg_replace failed");
                 style.set_href(&url);
             } else if r#match[0] == "options" {
-                let mut options: Vec<Vec<String>> = vec![];
-                shirabe_php_shim::preg_match_all_simple(
+                let mut options = shirabe_php_shim::preg_match_all(
                     "([^,;]+)",
                     &shirabe_php_shim::strtolower(&r#match[1]),
-                    &mut options,
-                )?;
+                );
                 let options = shirabe_php_shim::array_shift(&mut options).unwrap_or_default();
                 for option in &options {
                     style.set_option(option);