From c14de8a09210b94db2ca4f0aea9c37f06622daa8 Mon Sep 17 00:00:00 2001
From: Long Deng <ldeng@mail.ustc.edu.cn>
Date: Fri, 3 Dec 2021 16:20:32 +0800
Subject: [PATCH] Solve arguments() showing empty keys when exsiting short-only
 option

---
 include/cxxopts.hpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/include/cxxopts.hpp b/include/cxxopts.hpp
index d247ba7..868d23d 100644
--- a/include/cxxopts.hpp
+++ b/include/cxxopts.hpp
@@ -1287,6 +1287,13 @@ namespace cxxopts
       return m_long;
     }
 
+    CXXOPTS_NODISCARD
+    const std::string&
+    essential_name() const
+    {
+      return m_long.empty() ? m_short : m_long;
+    }
+
     size_t
     hash() const
     {
@@ -2150,7 +2157,7 @@ OptionParser::parse_default(const std::shared_ptr<OptionDetails>& details)
   // TODO: remove the duplicate code here
   auto& store = m_parsed[details->hash()];
   store.parse_default(details);
-  m_defaults.emplace_back(details->long_name(), details->value().get_default_value());
+  m_defaults.emplace_back(details->essential_name(), details->value().get_default_value());
 }
 
 inline
@@ -2174,7 +2181,7 @@ OptionParser::parse_option
   auto& result = m_parsed[hash];
   result.parse(value, arg);
 
-  m_sequential.emplace_back(value->long_name(), arg);
+  m_sequential.emplace_back(value->essential_name(), arg);
 }
 
 inline