userdiff: support enum keyword in PHP hunk header

From: USAMI Kenta <[email protected]>

"enum" keyword will be introduced in PHP 8.1.
https://wiki.php.net/rfc/enumerations

---
userdiff: support enum keyword in PHP hunk header

"enum" keyword will be introduced in PHP 8.1.
https://wiki.php.net/rfc/enumerations

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1082%2Fzonuexe%2Ffeature%2Fuserdiff-php-enum-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1082/zonuexe/feature/userdiff-php-enum-v1
Pull-Request: https://github.com/git/git/pull/1082

 t/t4018/php-enum | 4 ++++
 userdiff.c       | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 t/t4018/php-enum

new file mode 100644
index 00000000000..91a69c1a2bc
@@ -0,0 +1,4 @@
+enum RIGHT: string
+{
+    case Foo = 'ChangeMe';
+}

index d9b2ba752f0..d9ec484d535 100644
@@ -214,7 +214,7 @@ PATTERNS("perl",
 	 "|<<|<>|<=>|>>"),
 PATTERNS("php",
 	 "^[\t ]*(((public|protected|private|static|abstract|final)[\t ]+)*function.*)$\n"
-	 "^[\t ]*((((final|abstract)[\t ]+)?class|interface|trait).*)$",
+	 "^[\t ]*((((final|abstract)[\t ]+)?class|enum|interface|trait).*)$",
 	 /* -- */
 	 "[a-zA-Z_][a-zA-Z0-9_]*"
 	 "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+"

base-commit: c4203212e360b25a1c69467b5a8437d45a373cac

gitgitgadget

I no longer speak PHP, but this looks sensible to me.

Thanks, will queue.