From 49dc424ff304149a847880f7c6c19179668f94de Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sun, 30 Oct 2022 01:10:16 +0900
Subject: [ruby/date] Remove `extz_pats` table

https://github.com/ruby/date/commit/945e26e243
---
 ext/date/date_strptime.c | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

(limited to 'ext/date')

diff --git a/ext/date/date_strptime.c b/ext/date/date_strptime.c
index 53b48d5105..7d61347c31 100644
--- a/ext/date/date_strptime.c
+++ b/ext/date/date_strptime.c
@@ -18,12 +18,6 @@ static const char *month_names[] = {
     "October", "November", "December",
 };
 
-static const char *extz_pats[] = {
-    ":z",
-    "::z",
-    ":::z"
-};
-
 #define sizeof_array(o) (sizeof o / sizeof o[0])
 
 #define f_negate(x) rb_funcall(x, rb_intern("-@"), 0)
@@ -185,12 +179,11 @@ date__strptime_internal(const char *str, size_t slen,
 		{
 		    int i;
 
-		    for (i = 0; i < (int)sizeof_array(extz_pats); i++)
-			if (strncmp(extz_pats[i], &fmt[fi],
-					strlen(extz_pats[i])) == 0) {
-			    fi += i;
-			    goto again;
-			}
+		    for (i = 1; i < 3 && fi + i < flen && fmt[fi+i] == ':'; ++i);
+		    if (fmt[fi+i] == 'z') {
+			fi += i - 1;
+			goto again;
+		    }
 		    fail();
 		}
 
-- 
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