From 38ca0b9d645cabba7a481ebf6e16ad4279dbf01f Mon Sep 17 00:00:00 2001
From: Russell Standish <hpcoder@hpcoders.com.au>
Date: Thu, 2 Dec 2021 09:54:42 +1100
Subject: [PATCH 1/3] Handle NaNs on input Correctly display real special
 values on output Remove deprecation warning on boost placeholders

---
 json5_parser/json5_parser_reader_template.h | 12 +++++++++++-
 json5_parser/json5_parser_writer_template.h |  5 +++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/json5_parser/json5_parser_reader_template.h b/json5_parser/json5_parser_reader_template.h
index 557035b..984edb4 100644
--- a/json5_parser/json5_parser_reader_template.h
+++ b/json5_parser/json5_parser_reader_template.h
@@ -15,7 +15,7 @@
 
 #define BOOST_SPIRIT_THREADSAFE  // uncomment for multithreaded use, requires linking to boost.thread
 
-#include <boost/bind.hpp>
+#include <boost/bind/bind.hpp>
 #include <boost/function.hpp>
 #include <boost/version.hpp>
 
@@ -37,6 +37,7 @@
 
 namespace json5_parser
 {
+    using namespace boost::placeholders;
     const spirit_namespace::int_parser < boost::int64_t >  int64_p  = spirit_namespace::int_parser < boost::int64_t  >();
     const spirit_namespace::uint_parser< boost::uint64_t > uint64_p = spirit_namespace::uint_parser< boost::uint64_t >();
 
@@ -312,6 +313,13 @@ namespace json5_parser
 
             add_to_current( -std::numeric_limits<double>::infinity() );
         }
+      
+        void new_nan( Iter_type begin, Iter_type end )
+        {
+            assert( is_eq( begin, end, "NaN" ) );
+
+            add_to_current( -std::numeric_limits<double>::quiet_NaN() );
+        }
 
     private:
 
@@ -474,6 +482,7 @@ namespace json5_parser
                 Real_action   new_real   ( boost::bind( &Semantic_actions_t::new_real,    &self.actions_, _1 ) );
                 Str_action    new_infinity ( boost::bind( &Semantic_actions_t::new_infinity, &self.actions_, _1, _2 ) );
                 Str_action    new_minus_infinity ( boost::bind( &Semantic_actions_t::new_minus_infinity, &self.actions_, _1, _2 ) );
+                Str_action    new_nan ( boost::bind( &Semantic_actions_t::new_nan, &self.actions_, _1, _2 ) );
                 Int_action    new_int    ( boost::bind( &Semantic_actions_t::new_int,     &self.actions_, _1 ) );
                 Uint64_action new_uint64 ( boost::bind( &Semantic_actions_t::new_uint64,  &self.actions_, _1 ) );
 
@@ -494,6 +503,7 @@ namespace json5_parser
                     | str_p( "null" ) [ new_null  ]
                     | (!ch_p('+') >> str_p( "Infinity" ) [ new_infinity ])
                     | str_p( "-Infinity" ) [ new_minus_infinity ]
+                    | str_p( "NaN" ) [ new_nan ]
                     ;
 
                 object_ 
diff --git a/json5_parser/json5_parser_writer_template.h b/json5_parser/json5_parser_writer_template.h
index b9ab62e..37d8e66 100644
--- a/json5_parser/json5_parser_writer_template.h
+++ b/json5_parser/json5_parser_writer_template.h
@@ -190,7 +190,12 @@ namespace json5_parser
 
         void output( double d )
         {
+          if (std::isfinite(d))
             os_ << std::setprecision( precision_of_doubles_ ) << d;
+          else if (std::isnan(d))
+            os_<<"NaN";
+          else // is infinite
+            os_<<(d<0?"-":"")<<"Infinity";
         }
 
         static bool contains_composite_elements( const Array_type& arr )

From 918f87bd3994395e0e43cdb86e5994ab2fe61747 Mon Sep 17 00:00:00 2001
From: Russell Standish <hpcoder@hpcoders.com.au>
Date: Thu, 15 Dec 2022 15:20:34 +1100
Subject: [PATCH 2/3] Added single quote processing of object keys.

---
 json5_parser/json5_parser_reader_template.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/json5_parser/json5_parser_reader_template.h b/json5_parser/json5_parser_reader_template.h
index 984edb4..4f70049 100644
--- a/json5_parser/json5_parser_reader_template.h
+++ b/json5_parser/json5_parser_reader_template.h
@@ -517,7 +517,7 @@ namespace json5_parser
                     ;
 
                 pair_
-                    = (double_quoted_string_[ new_name ] | identifier_[ new_identifier ]) 
+                    = (single_quoted_string_[ new_name ] | double_quoted_string_[ new_name ] | identifier_[ new_identifier ]) 
                     >> ( ':' | eps_p[ &throw_not_colon ] )
                     >> ( value_ | eps_p[ &throw_not_value ] )
                     ;

From b095e5feb689fbb93beb4cc767eb00670152a614 Mon Sep 17 00:00:00 2001
From: Russell Standish <hpcoder@hpcoders.com.au>
Date: Tue, 20 Aug 2024 18:34:14 +1000
Subject: [PATCH 3/3] ifdef'd out BOOST_SPIRIT_THREADSAFE when compiling with
 emscripten

---
 json5_parser/json5_parser_reader_template.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/json5_parser/json5_parser_reader_template.h b/json5_parser/json5_parser_reader_template.h
index 984edb4..298bac0 100644
--- a/json5_parser/json5_parser_reader_template.h
+++ b/json5_parser/json5_parser_reader_template.h
@@ -13,7 +13,10 @@
 #include "json5_parser_value.h"
 #include "json5_parser_error_position.h"
 
+// emscripten threads are complicated to use and experimental
+#ifndef __EMSCRIPTEN__
 #define BOOST_SPIRIT_THREADSAFE  // uncomment for multithreaded use, requires linking to boost.thread
+#endif
 
 #include <boost/bind/bind.hpp>
 #include <boost/function.hpp>