From 19cb3916249eba729aace599fe092d7072816572 Mon Sep 17 00:00:00 2001
From: mutouyun <orz@orzz.org>
Date: Sat, 27 May 2023 16:40:43 +0800
Subject: [PATCH] fix: [imp] fmt issue

---
 include/libimp/log.h |  6 ------
 src/libimp/fmt.cpp   | 10 ++++++----
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/include/libimp/log.h b/include/libimp/log.h
index 33c38d2..05fe998 100644
--- a/include/libimp/log.h
+++ b/include/libimp/log.h
@@ -131,12 +131,6 @@ public:
   }
 };
 
-/// \brief Custom defined fmt_to method for imp::fmt
-template <typename... T>
-bool tag_invoke(decltype(::LIBIMP::fmt_to), fmt_context &f_ctx, context<T...> const &l_ctx) noexcept {
-  return ::LIBIMP::log::context_to_string(f_ctx, l_ctx);
-}
-
 } // namespace detail
 
 class printer {
diff --git a/src/libimp/fmt.cpp b/src/libimp/fmt.cpp
index 2fc2895..94bb284 100644
--- a/src/libimp/fmt.cpp
+++ b/src/libimp/fmt.cpp
@@ -197,12 +197,14 @@ void fmt_context::expend(std::size_t sz) noexcept {
 }
 
 bool fmt_context::append(span<char const> const &str) noexcept {
-  auto sbuf = buffer(str.size());
-  if (sbuf.size() < str.size()) {
+  auto sz = str.size();
+  if (str.back() == '\0') --sz;
+  auto sbuf = buffer(sz);
+  if (sbuf.size() < sz) {
     return false;
   }
-  std::memcpy(sbuf.data(), str.data(), str.size());
-  offset_ += str.size();
+  std::memcpy(sbuf.data(), str.data(), sz);
+  offset_ += sz;
   return true;
 }