From bd6f35c1a4173e998382d8a5deefe79cd3df8896 Mon Sep 17 00:00:00 2001
From: Aoran Zeng <ccmywish@qq.com>
Date: Wed, 27 Sep 2023 16:12:22 +0800
Subject: [PATCH] Refactor `xy_str_strip()`

---
 xy.h | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/xy.h b/xy.h
index 07e0c13..1705341 100644
--- a/xy.h
+++ b/xy.h
@@ -431,22 +431,21 @@ xy_str_delete_suffix (const char* str, const char* suffix)
 static char*
 xy_str_strip (const char* str)
 {
-  const char* lf   = "\n";
-  const char* crlf = "\r\n";
-
   char* new = xy_strdup(str);
 
-  while (xy_str_start_with(new, lf)) {
-    new = xy_str_delete_prefix(new, lf);
+  while (strchr("\n\r\v\t\f ", new[0]))
+  {
+    new += 1;
   }
-  while (xy_str_start_with(new, crlf)) {
-    new = xy_str_delete_prefix(new, crlf);
-  }
-  while (xy_str_end_with(new, lf)) {
-    new = xy_str_delete_suffix(new, lf);
-  }
-  while (xy_str_end_with(new, crlf)) {
-    new = xy_str_delete_suffix(new, crlf);
+
+  size_t len = strlen(new);
+
+  char* last = new + len - 1;
+
+  while (strchr("\n\r\v\t\f ", *last))
+  {
+    *last = '\0';
+    last -= 1;
   }
   return new;
 }