added toml::format_flags::terse_key_value_pairs

CHANGELOG.md

@@ -29,6 +29,7 @@ template:
 - fixed spurious warnings in MSVC 19.34
 - fixed some `_Float16` detection issues
 - fixed `toml::parse_file()` on windows for non-ASCII paths
+- added `toml::format_flags::terse_key_value_pairs`
 
 <br><br>
 

include/toml++/impl/formatter.h

@@ -124,6 +124,12 @@ TOML_IMPL_NAMESPACE_START
 			return !!(config_.flags & format_flags::allow_unicode_strings);
 		}
 
+		TOML_PURE_INLINE_GETTER
+		bool terse_kvps() const noexcept
+		{
+			return !!(config_.flags & format_flags::terse_key_value_pairs);
+		}
+
 		TOML_EXPORTED_MEMBER_FUNCTION
 		void attach(std::ostream& stream) noexcept;
 

include/toml++/impl/forward_declarations.h

@@ -337,6 +337,9 @@ TOML_NAMESPACE_START // abi namespace
 		///				since floats might have a less precise value upon being written out than they did when being
 		///				read in. Use this flag at your own risk.
 		relaxed_float_precision = (1ull << 11),
+
+		/// \brief Avoids the use of whitespace around key-value pairs.
+		terse_key_value_pairs = (1ull << 12),
 	};
 	TOML_MAKE_FLAGS(format_flags);
 

include/toml++/impl/json_formatter.inl

@@ -43,7 +43,10 @@ TOML_NAMESPACE_START
 			print_indent();
 
 			print_string(k.str(), false);
-			print_unformatted(" : "sv);
+			if (terse_kvps())
+				print_unformatted(":"sv);
+			else
+				print_unformatted(" : "sv);
 
 			const auto type = v.type();
 			TOML_ASSUME(type != node_type::none);

include/toml++/impl/toml_formatter.inl

@@ -152,7 +152,10 @@ TOML_NAMESPACE_START
 			first = true;
 
 			print(k);
-			print_unformatted(" = "sv);
+			if (terse_kvps())
+				print_unformatted("="sv);
+			else
+				print_unformatted(" = "sv);
 
 			const auto type = v.type();
 			TOML_ASSUME(type != node_type::none);
@@ -255,7 +258,10 @@ TOML_NAMESPACE_START
 			print_newline();
 			print_indent();
 			print(k);
-			print_unformatted(" = "sv);
+			if (terse_kvps())
+				print_unformatted("="sv);
+			else
+				print_unformatted(" = "sv);
 			TOML_ASSUME(type != node_type::none);
 			switch (type)
 			{

include/toml++/impl/yaml_formatter.inl

@@ -83,7 +83,10 @@ TOML_NAMESPACE_START
 			parent_is_array = false;
 
 			print_string(k.str(), false, true);
-			print_unformatted(": "sv);
+			if (terse_kvps())
+				print_unformatted(":"sv);
+			else
+				print_unformatted(": "sv);
 
 			const auto type = v.type();
 			TOML_ASSUME(type != node_type::none);

tests/conformance_burntsushi_invalid.cpp

@@ -430,16 +430,16 @@ zyx = 42)"sv;
 zyx = 42)"sv;
 	static constexpr auto table_quoted_no_close				= R"(["where will it end]
 name = value)"sv;
-	static constexpr auto table_redefine		 = R"(# Define b as int, and try to use it as a table: error
+	static constexpr auto table_redefine					= R"(# Define b as int, and try to use it as a table: error
 [a]
 b = 1
 
 [a.b]
 c = 2)"sv;
-	static constexpr auto table_rrbrace			 = R"([[table] ])"sv;
+	static constexpr auto table_rrbrace						= R"([[table] ])"sv;
-	static constexpr auto table_text_after_table = R"([error] this shouldn't be here)"sv;
+	static constexpr auto table_text_after_table			= R"([error] this shouldn't be here)"sv;
-	static constexpr auto table_whitespace		 = R"([invalid key])"sv;
+	static constexpr auto table_whitespace					= R"([invalid key])"sv;
-	static constexpr auto table_with_pound		 = R"([key#group]
+	static constexpr auto table_with_pound					= R"([key#group]
 answer = 42)"sv;
 }
 

toml.hpp

@@ -1433,6 +1433,7 @@ TOML_NAMESPACE_START // abi namespace
 		indent_array_elements = (1ull << 10),
 		indentation = indent_sub_tables | indent_array_elements,
 		relaxed_float_precision = (1ull << 11),
+		terse_key_value_pairs = (1ull << 12),
 	};
 	TOML_MAKE_FLAGS(format_flags);
 
@@ -9343,6 +9344,12 @@ TOML_IMPL_NAMESPACE_START
 			return !!(config_.flags & format_flags::allow_unicode_strings);
 		}
 
+		TOML_PURE_INLINE_GETTER
+		bool terse_kvps() const noexcept
+		{
+			return !!(config_.flags & format_flags::terse_key_value_pairs);
+		}
+
 		TOML_EXPORTED_MEMBER_FUNCTION
 		void attach(std::ostream& stream) noexcept;
 
@@ -16525,7 +16532,10 @@ TOML_NAMESPACE_START
 			first = true;
 
 			print(k);
-			print_unformatted(" = "sv);
+			if (terse_kvps())
+				print_unformatted("="sv);
+			else
+				print_unformatted(" = "sv);
 
 			const auto type = v.type();
 			TOML_ASSUME(type != node_type::none);
@@ -16628,7 +16638,10 @@ TOML_NAMESPACE_START
 			print_newline();
 			print_indent();
 			print(k);
-			print_unformatted(" = "sv);
+			if (terse_kvps())
+				print_unformatted("="sv);
+			else
+				print_unformatted(" = "sv);
 			TOML_ASSUME(type != node_type::none);
 			switch (type)
 			{
@@ -16815,7 +16828,10 @@ TOML_NAMESPACE_START
 			print_indent();
 
 			print_string(k.str(), false);
-			print_unformatted(" : "sv);
+			if (terse_kvps())
+				print_unformatted(":"sv);
+			else
+				print_unformatted(" : "sv);
 
 			const auto type = v.type();
 			TOML_ASSUME(type != node_type::none);
@@ -16973,7 +16989,10 @@ TOML_NAMESPACE_START
 			parent_is_array = false;
 
 			print_string(k.str(), false, true);
-			print_unformatted(": "sv);
+			if (terse_kvps())
+				print_unformatted(":"sv);
+			else
+				print_unformatted(": "sv);
 
 			const auto type = v.type();
 			TOML_ASSUME(type != node_type::none);