diff --git a/bindings/cs/bgfx.cs b/bindings/cs/bgfx.cs
index 32681b7e8..70ed06a0a 100644
--- a/bindings/cs/bgfx.cs
+++ b/bindings/cs/bgfx.cs
@@ -538,7 +538,8 @@ public static partial class bgfx
 		Wireframe              = 0x00000001,
 	
 		/// <summary>
-		/// Enable infinitely fast hardware test. No draw calls will be submitted to driver. It’s useful when profiling to quickly assess bottleneck between CPU and GPU.
+		/// Enable infinitely fast hardware test. No draw calls will be submitted to driver.
+		/// It's useful when profiling to quickly assess bottleneck between CPU and GPU.
 		/// </summary>
 		Ifh                    = 0x00000002,
 	
@@ -917,7 +918,8 @@ public static partial class bgfx
 		FlushAfterRender       = 0x00002000,
 	
 		/// <summary>
-		/// This flag  specifies where flip occurs. Default behavior is that flip occurs before rendering new frame. This flag only has effect when `BGFX_CONFIG_MULTITHREADED=0`.
+		/// This flag specifies where flip occurs. Default behavior is that flip occurs
+		/// before rendering new frame. This flag only has effect when `BGFX_CONFIG_MULTITHREADED=0`.
 		/// </summary>
 		FlipAfterRender        = 0x00004000,
 	
diff --git a/include/bgfx/defines.h b/include/bgfx/defines.h
index 96643a7c4..390f0ce29 100644
--- a/include/bgfx/defines.h
+++ b/include/bgfx/defines.h
@@ -245,7 +245,9 @@
 
 #define BGFX_DEBUG_NONE                     UINT32_C(0x00000000) //!< No debug.
 #define BGFX_DEBUG_WIREFRAME                UINT32_C(0x00000001) //!< Enable wireframe for all primitives.
-#define BGFX_DEBUG_IFH                      UINT32_C(0x00000002) //!< Enable infinitely fast hardware test. No draw calls will be submitted to driver. It’s useful when profiling to quickly assess bottleneck between CPU and GPU.
+/// Enable infinitely fast hardware test. No draw calls will be submitted to driver.
+/// It's useful when profiling to quickly assess bottleneck between CPU and GPU.
+#define BGFX_DEBUG_IFH                      UINT32_C(0x00000002)
 #define BGFX_DEBUG_STATS                    UINT32_C(0x00000004) //!< Enable statistics display.
 #define BGFX_DEBUG_TEXT                     UINT32_C(0x00000008) //!< Enable debug text display.
 #define BGFX_DEBUG_PROFILER                 UINT32_C(0x00000010) //!< Enable profiler.
@@ -417,7 +419,9 @@
 #define BGFX_RESET_MAXANISOTROPY            UINT32_C(0x00000100) //!< Turn on/off max anisotropy.
 #define BGFX_RESET_CAPTURE                  UINT32_C(0x00000200) //!< Begin screen capture.
 #define BGFX_RESET_FLUSH_AFTER_RENDER       UINT32_C(0x00002000) //!< Flush rendering after submitting to GPU.
-#define BGFX_RESET_FLIP_AFTER_RENDER        UINT32_C(0x00004000) //!< This flag  specifies where flip occurs. Default behavior is that flip occurs before rendering new frame. This flag only has effect when `BGFX_CONFIG_MULTITHREADED=0`.
+/// This flag specifies where flip occurs. Default behavior is that flip occurs
+/// before rendering new frame. This flag only has effect when `BGFX_CONFIG_MULTITHREADED=0`.
+#define BGFX_RESET_FLIP_AFTER_RENDER        UINT32_C(0x00004000)
 #define BGFX_RESET_SRGB_BACKBUFFER          UINT32_C(0x00008000) //!< Enable sRGB backbuffer.
 #define BGFX_RESET_HDR10                    UINT32_C(0x00010000) //!< Enable HDR10 rendering.
 #define BGFX_RESET_HIDPI                    UINT32_C(0x00020000) //!< Enable HiDPI rendering.
diff --git a/scripts/bgfx.idl b/scripts/bgfx.idl
index 1dcb5bc86..56d6a7784 100644
--- a/scripts/bgfx.idl
+++ b/scripts/bgfx.idl
@@ -202,7 +202,8 @@ flag.Clear { bits = 16 }
 flag.Debug { bits = 32 }
 	.None                    --- No debug.
 	.Wireframe               --- Enable wireframe for all primitives.
-	.Ifh                     --- Enable infinitely fast hardware test. No draw calls will be submitted to driver. It’s useful when profiling to quickly assess bottleneck between CPU and GPU.
+	.Ifh                     --- Enable infinitely fast hardware test. No draw calls will be submitted to driver.
+	                         --- It's useful when profiling to quickly assess bottleneck between CPU and GPU.
 	.Stats                   --- Enable statistics display.
 	.Text                    --- Enable debug text display.
 	.Profiler                --- Enable profiler.
@@ -328,7 +329,8 @@ flag.Reset { bits = 32 }
 	.Maxanisotropy       (9)   --- Turn on/off max anisotropy.
 	.Capture             (10)  --- Begin screen capture.
 	.FlushAfterRender    (14)  --- Flush rendering after submitting to GPU.
-	.FlipAfterRender     (15)  --- This flag specifies where flip occurs. Default behavior is that flip occurs before rendering new frame. This flag only has effect when `BGFX_CONFIG_MULTITHREADED=0`.
+	.FlipAfterRender     (15)  --- This flag specifies where flip occurs. Default behavior is that flip occurs
+	                           --- before rendering new frame. This flag only has effect when `BGFX_CONFIG_MULTITHREADED=0`.
 	.SrgbBackbuffer      (16)  --- Enable sRGB backbuffer.
 	.Hdr10               (17)  --- Enable HDR10 rendering.
 	.Hidpi               (18)  --- Enable HiDPI rendering.
diff --git a/scripts/bindings-cs.lua b/scripts/bindings-cs.lua
index e167527bd..8e6bfc47b 100644
--- a/scripts/bindings-cs.lua
+++ b/scripts/bindings-cs.lua
@@ -169,12 +169,9 @@ local function FlagBlock(typ)
 			end
 
 			yield("\t/// <summary>")
-			if (type(flag.comment) == "table") then
-				comment = table.concat(flag.comment, "\n\t\t/// ")
-			else
-				comment = flag.comment
+			for _, comment in ipairs(flag.comment) do
+				yield("\t/// " .. comment)
 			end
-			yield("\t/// " .. comment)
 			yield("\t/// </summary>")
 		end
 
@@ -259,7 +256,9 @@ function converter.types(typ)
 				end
 
 				yield("\t/// <summary>")
-				yield("\t/// " .. enum.comment)
+				for _, comment in ipairs(enum.comment) do
+					yield("\t/// " .. comment)
+				end
 				yield("\t/// </summary>")
 			end
 
@@ -296,18 +295,11 @@ function converter.types(typ)
 					end
 				end
 				lookup[flagName] = value
-				if flag.comment ~= nil then
-					table.insert(flags, {
-						name = flagName,
-						value = value,
-						comment = flag.comment,
-					})
-				else
-					table.insert(flags, {
-						name = flagName,
-						value = value,
-					})
-				end
+				table.insert(flags, {
+					name = flagName,
+					value = value,
+					comment = flag.comment,
+				})
 			end
 
 			if typ.shift then
@@ -381,12 +373,7 @@ function converter.funcs(func)
 
 		for _, arg in ipairs(func.args) do
 			if arg.comment ~= nil then
-				local comment = ""
-				if (type(arg.comment) == "table") then
-					comment = table.concat(arg.comment, " ")
-				else
-					comment = arg.comment
-				end
+				local comment = table.concat(arg.comment, " ")
 
 				yield("/// <param name=\""
 					.. arg.name
@@ -430,4 +417,9 @@ function gen.write(codes, outputfile)
 	out:close()
 end
 
+if (...) == nil then
+	-- run `lua bindings-cs.lua` in command line
+	print(gen.gen())
+end
+
 return gen
diff --git a/scripts/codegen.lua b/scripts/codegen.lua
index a7e697d47..3b6a3a937 100644
--- a/scripts/codegen.lua
+++ b/scripts/codegen.lua
@@ -576,13 +576,9 @@ local function doxygen_funcret(r, func, prefix)
 		return
 	end
 	r[#r+1] = prefix
-	if type(func.ret.comment) == "string" then
-		r[#r+1] = string.format("%s @returns %s", prefix, func.ret.comment)
-	else
-		r[#r+1] = string.format("%s @returns %s", prefix, func.ret.comment[1])
-		for i = 2,#func.ret.comment do
-			r[#r+1] = string.format("%s  %s", prefix, func.ret.comment[i])
-		end
+	r[#r+1] = string.format("%s @returns %s", prefix, func.ret.comment[1])
+	for i = 2,#func.ret.comment do
+		r[#r+1] = string.format("%s  %s", prefix, func.ret.comment[i])
 	end
 	return r
 end
@@ -603,13 +599,9 @@ local function doxygen_func(r, func, prefix)
 		end
 		local comment = string.format("%s @param[%s] %s", prefix, inout, arg.name)
 		if arg.comment then
-			if type(arg.comment) == "string" then
-				r[#r+1] = comment .. " " .. arg.comment
-			else
-				r[#r+1] = comment .. " " .. arg.comment[1]
-				for i = 2,#arg.comment do
-					r[#r+1] = string.format("%s  %s", prefix, arg.comment[i])
-				end
+			r[#r+1] = comment .. " " .. arg.comment[1]
+			for i = 2,#arg.comment do
+				r[#r+1] = string.format("%s  %s", prefix, arg.comment[i])
 			end
 		else
 			r[#r+1] = comment
@@ -681,8 +673,9 @@ function codegen.gen_enum_define(enum)
 		if not item.comment then
 			text = item.name .. ","
 		else
+			local comment = table.concat(item.comment, " ")
 			text = string.format("%s,%s //!< %s",
-				item.name, namealign(item.name), item.comment)
+				item.name, namealign(item.name), comment)
 		end
 		items[#items+1] = text
 	end
@@ -713,7 +706,10 @@ function codegen.gen_enum_cdefine(enum)
 	local uname = cname:upper()
 	local items = {}
 	for index , item in ipairs(enum.enum) do
-		local comment = item.comment or ""
+		local comment = ""
+		if item.comment then
+			comment = table.concat(item.comment, " ")
+		end
 		local ename = item.cname
 		if not ename then
 			if enum.underscore then
@@ -765,12 +761,8 @@ function codegen.gen_flag_cdefine(flag)
 		-- combine flags
 		if #item > 0 then
 			if item.comment then
-				if type(item.comment) == "table" then
-					for _, c in ipairs(item.comment) do
-						s[#s+1] = "/// " .. c
-					end
-				else
-					s[#s+1] = "/// " .. item.comment
+				for _, c in ipairs(item.comment) do
+					s[#s+1] = "/// " .. c
 				end
 			end
 			local sets = { "" }
@@ -781,7 +773,13 @@ function codegen.gen_flag_cdefine(flag)
 		else
 			local comment = ""
 			if item.comment then
-				comment = " //!< " .. item.comment
+				if #item.comment > 1 then
+					for _, c in ipairs(item.comment) do
+						s[#s+1] = "/// " .. c
+					end
+				else
+					comment = " //!< " .. item.comment[1]
+				end
 			end
 			value = string.format(flag.format, value)
 			local code = string.format("#define %s %sUINT%d_C(0x%s)%s",
@@ -852,7 +850,7 @@ local function text_with_comments(items, item, cstyle, is_classmember)
 	end
 	local text = string.format("%s%s %s;", typename, namealign(typename), name)
 	if item.comment then
-		if type(item.comment) == "table" then
+		if #item.comment > 1 then
 			table.insert(items, "")
 			if cstyle then
 				table.insert(items, "/**")
@@ -868,7 +866,7 @@ local function text_with_comments(items, item, cstyle, is_classmember)
 		else
 			text = string.format(
 				cstyle and "%s %s/** %s%s */" or "%s %s//!< %s",
-				text, namealign(text, 40),  item.comment, namealign(item.comment, 40))
+				text, namealign(text, 40),  item.comment[1], namealign(item.comment[1], 40))
 		end
 	end
 	items[#items+1] = text
diff --git a/scripts/idl.lua b/scripts/idl.lua
index fc85f129a..b5bd2ae8a 100644
--- a/scripts/idl.lua
+++ b/scripts/idl.lua
@@ -68,15 +68,10 @@ idl.types = all_types
 local function add_comment(item, comment)
 	-- strip space
 	comment = comment:match "(.-)%s*$"
-	local last = item.comment
-	if last then
-		if type(last) == "string" then
-			item.comment = { last, comment }
-		else
-			table.insert(item.comment, comment)
-		end
+	if item.comment then
+		table.insert(item.comment, comment)
 	else
-		item.comment = comment
+		item.comment = { comment }
 	end
 end