feat(gen): finish def func & simple typedef parsing

core/CacheLineSize.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/EUCount.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/PCIProperties.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/RTAS.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/RTASBuilder.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/SRGB.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/bandwidth.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/barrier.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/bfloat16conversions.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/bindlessimages.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/cacheReservation.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/callbacks.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/cmdlist.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/cmdqueue.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/commandListClone.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/common.go

@@ -1,3 +1,84 @@
 // Code generated by gen. DO NOT EDIT.
 
+/*
+ *
+ * Copyright (C) 2019-2025 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * @file ze_api.h
+ * @version v1.15-r1.15.31
+ *
+ */
+
 package core
+
+/// @brief Generates generic 'oneAPI' API versions
+func ZE_MAKE_VERSION[T ~int | ~uint64 | ~uintptr](_major T, _minor T) T {
+	return (( _major << 16 )|( _minor & 0x0000ffff))
+}
+
+/// @brief Extracts 'oneAPI' API major version
+func ZE_MAJOR_VERSION[T ~int | ~uint64 | ~uintptr](_ver T) T {
+	return ( _ver >> 16 )
+}
+
+/// @brief Extracts 'oneAPI' API minor version
+func ZE_MINOR_VERSION[T ~int | ~uint64 | ~uintptr](_ver T) T {
+	return ( _ver & 0x0000ffff )
+}
+
+/// @brief compiler-independent type
+type ZeBool uint8
+
+/// @brief Handle of a driver instance
+type ZeDriverHandle uintptr
+
+/// @brief Handle of driver's device object
+type ZeDeviceHandle uintptr
+
+/// @brief Handle of driver's context object
+type ZeContextHandle uintptr
+
+/// @brief Handle of driver's command queue object
+type ZeCommandQueueHandle uintptr
+
+/// @brief Handle of driver's command list object
+type ZeCommandListHandle uintptr
+
+/// @brief Handle of driver's fence object
+type ZeFenceHandle uintptr
+
+/// @brief Handle of driver's event pool object
+type ZeEventPoolHandle uintptr
+
+/// @brief Handle of driver's event object
+type ZeEventHandle uintptr
+
+/// @brief Handle of driver's image object
+type ZeImageHandle uintptr
+
+/// @brief Handle of driver's module object
+type ZeModuleHandle uintptr
+
+/// @brief Handle of module's build log object
+type ZeModuleBuildLogHandle uintptr
+
+/// @brief Handle of driver's kernel object
+type ZeKernelHandle uintptr
+
+/// @brief Handle of driver's sampler object
+type ZeSamplerHandle uintptr
+
+/// @brief Handle of physical memory object
+type ZePhysicalMemHandle uintptr
+
+/// @brief Handle of driver's fabric vertex object
+type ZeFabricVertexHandle uintptr
+
+/// @brief Handle of driver's fabric edge object
+type ZeFabricEdgeHandle uintptr
+
+/// @brief Maximum IPC handle size
+const ZE_MAX_IPC_HANDLE_SIZE = 64
+

core/context.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/copy.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/counterbasedeventpool.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/device.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/deviceLUID.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/deviceVectorSizes.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/deviceipversion.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/deviceusablememproperties.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/driver.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/driverDDIHandles.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/event.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/eventQueryKernelTimestamps.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/eventquerytimestamps.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/externalMemMap.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/externalSemaphores.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/fabric.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/fence.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/floatAtomics.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/globaloffset.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/image.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/imageCopy.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/imageFormatSupport.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/imageQueryAllocProperties.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/imagememoryproperties.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/imageview.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/imageviewplanar.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/immediateCommandListAppend.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/ipcMemHandleType.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/kernelAllocationProperties.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/kernelBinary.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/kernelMaxGroupSizeProperties.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/kernelSchedulingHints.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/linkageInspection.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/linkonceodr.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/memory.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/memoryCompressionHints.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/memoryFreePolicies.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/memoryProperties.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/module.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/mutableCommandList.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/powersavinghint.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/program.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/raytracing.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/relaxedAllocLimits.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/residency.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/sampler.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/subAllocationsProperties.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/subgroups.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

core/virtual.go

@@ -1,3 +0,0 @@
-// Code generated by gen. DO NOT EDIT.
-
-package core

gen/main.go

@@ -22,6 +22,7 @@ func main() {
 	if strings.HasPrefix(*spec, "v") {
 		ver := (*spec)[1:]
 		u := fmt.Sprintf("https://github.com/oneapi-src/level-zero/releases/download/v%s/level-zero-win-sdk-%s.zip", ver, ver)
+		fmt.Println("[main] downloading spec from", u)
 		resp, err := http.Get(u)
 		if err != nil {
 			panic(err)
@@ -37,6 +38,7 @@ func main() {
 		}
 		specdir = r
 	} else {
+		fmt.Println("[main] reading local spec from", *spec)
 		specdir = os.DirFS(*spec)
 	}
 
@@ -45,7 +47,7 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
-	scanheader("core", bufio.NewScanner(f))
+	scanHeader("core", bufio.NewScanner(f))
 	_ = f.Close()
 	fmt.Println("[main] finish parsing core")
 
@@ -54,7 +56,7 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
-	scanheader("rntm", bufio.NewScanner(f))
+	scanHeader("rntm", bufio.NewScanner(f))
 	_ = f.Close()
 	fmt.Println("[main] finish parsing runtime")
 
@@ -63,7 +65,7 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
-	scanheader("sysm", bufio.NewScanner(f))
+	scanHeader("sysm", bufio.NewScanner(f))
 	_ = f.Close()
 	fmt.Println("[main] finish parsing sysman")
 
@@ -72,7 +74,7 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
-	scanheader("tols", bufio.NewScanner(f))
+	scanHeader("tols", bufio.NewScanner(f))
 	_ = f.Close()
 	fmt.Println("[main] finish parsing tools")
 }

gen/scan.go

@@ -14,12 +14,12 @@ func infh(name string) string {
 	if s, ok := infhcache[name]; ok {
 		return s
 	}
-	s := "  [" + name + "]"
+	s := "    [" + name + "]"
 	infhcache[name] = s
 	return s
 }
 
-func scanheader(name string, scan *bufio.Scanner) {
+func scanHeader(name string, scan *bufio.Scanner) {
 	ln := 0
 	var regionfile *os.File
 	symtab := symbolTable{
@@ -27,13 +27,19 @@ func scanheader(name string, scan *bufio.Scanner) {
 		"ZE_APIEXPORT": symbol{symbolTypeConst, "ZE_APIEXPORT", []string{""}},
 		"ZE_DLLEXPORT": symbol{symbolTypeConst, "ZE_DLLEXPORT", []string{""}},
 	}
+	fileheadersb := strings.Builder{}
+	region := ""
 	for scan.Scan() {
 		ln++
 		t := scan.Text()
 		switch {
+		// file headers
+		case strings.HasPrefix(t, "/*") || strings.HasPrefix(t, " *") || strings.HasPrefix(t, " */"):
+			fileheadersb.WriteString(t)
+			fileheadersb.WriteString("\n")
 		// pragma start
 		case strings.HasPrefix(t, "#pragma region "):
-			region := strings.TrimSpace(t[15:])
+			region = strings.TrimSpace(t[15:])
 			if region == "" {
 				panic(fmt.Sprintf("%s L%d: unexpected empty region", name, ln))
 			}
@@ -47,25 +53,49 @@ func scanheader(name string, scan *bufio.Scanner) {
 			if err != nil {
 				panic(fmt.Sprintf("%s L%d: cannot create region %s, err: %v", name, ln, region, err))
 			}
-			f.WriteString("// Code generated by gen. DO NOT EDIT.\n\npackage ")
-			f.WriteString(name)
+			f.WriteString("// Code generated by gen. DO NOT EDIT.\n\n")
+			f.WriteString(fileheadersb.String())
 			f.WriteString("\n")
+			f.WriteString("package ")
+			f.WriteString(name)
+			f.WriteString("\n\n")
 			regionfile = f
 		// block barrier
 		case strings.HasPrefix(t, "///////////////////////////////////////////////////////////////////////////////"):
-			regionfile.WriteString(t)
-			regionfile.WriteString("\n")
-			ln = scanblocks(name, scan, regionfile, ln, symtab)
+			fmt.Println("  [scan] enter", region, "block")
+			ln = scanBlocks(name, scan, regionfile, ln, symtab)
+			fmt.Println("  [scan] leave", region, "block")
 		// pragma end
 		case strings.HasPrefix(t, "#pragma endregion"):
 			fmt.Println(infh(name), "close region", regionfile.Name())
 			_ = regionfile.Close()
 			regionfile = nil
+		// skip outer #
+		case strings.HasPrefix(t, "#") || t == "" || strings.HasPrefix(t, "// ") ||
+			strings.HasPrefix(t, "extern "):
+			fmt.Println("  [scan] skip", t)
+			continue
+		default:
+			panic(fmt.Sprintf("%s L%d: unexpected line %s", name, ln, t))
 		}
 	}
 }
 
-func scanblocks(
+func checkSymbolName(
+	symtab symbolTable, ln int, name, sname string,
+	sb *strings.Builder, f *os.File, eq func() symbol) {
+	if _, ok := symtab[sname]; ok {
+		panic(fmt.Sprintf("%s L%d: func #define %s has been defined", name, ln, sname))
+	}
+	symtab[sname] = eq()
+	if sb.Len() == 0 {
+		panic(fmt.Sprintf("%s L%d: unexpected non-comment for symbol %s", name, ln, sname))
+	}
+	f.WriteString(sb.String())
+	sb.Reset()
+}
+
+func scanBlocks(
 	name string, scan *bufio.Scanner, f *os.File,
 	ln int, symtab symbolTable,
 ) int {
@@ -118,8 +148,78 @@ func scanblocks(
 			if ifdepth < 0 {
 				panic(fmt.Sprintf("%s L%d: unexpected unpaired #endif", name, ln))
 			}
-		case strings.HasPrefix(t, "#define"):
-
+		case strings.HasPrefix(t, "#define "):
+			if !strings.Contains(t, "(") { // is const define
+				argseval := trimEmptyStringArray(strings.Split(t[8:], " "))
+				if len(argseval) != 2 {
+					panic(fmt.Sprintf("%s L%d: unexpected const #define line %s", name, ln, t))
+				}
+				sname := strings.TrimSpace(argseval[0])
+				val := strings.TrimSpace(argseval[1])
+				checkSymbolName(symtab, ln, name, sname, &sb, f, func() symbol {
+					return newSymbolConst(sname, val)
+				})
+				f.WriteString("const ")
+				f.WriteString(sname)
+				f.WriteString(" = ")
+				f.WriteString(val)
+				f.WriteString("\n\n")
+				continue
+			}
+			sname, argseval, ok := strings.Cut(t[8:], "(")
+			if !ok {
+				panic(fmt.Sprintf("%s L%d: unexpected #define line %s", name, ln, t))
+			}
+			args, n, err := getInsideRoundBrakets(argseval)
+			if err != nil {
+				panic(fmt.Sprintf("%s L%d: unexpected args bracket err: %v", name, ln, err))
+			}
+			sname = strings.TrimSpace(sname)
+			args = strings.TrimSpace(args)
+			eval := strings.TrimSpace(argseval[n+1:])
+			checkSymbolName(symtab, ln, name, sname, &sb, f, func() symbol {
+				return newSymbolFunc(sname, args, eval)
+			})
+			f.WriteString("func ")
+			f.WriteString(sname)
+			f.WriteString("[T ~int | ~uint64 | ~uintptr](")
+			f.WriteString(strings.Join(strings.Split(args, ","), " T,"))
+			f.WriteString(" T) T {\n\treturn ")
+			f.WriteString(eval)
+			f.WriteString("\n}\n\n")
+		case strings.HasPrefix(t, "typedef "):
+			s, newln := get1sentence(t, scan, ln)
+			if newln < 0 {
+				panic(fmt.Sprintf("%s L%d: unexpected sentence end from", name, ln))
+			}
+			ln = newln
+			typs := trimEmptyStringArray(strings.Split(s[8:], " "))
+			if len(typs) == 0 {
+				panic(fmt.Sprintf("%s L%d: unexpected typdef line %s", name, ln, t))
+			}
+			if strings.TrimSpace(typs[0]) == "struct" {
+				if len(typs) != 3 || !strings.Contains(typs[1], "handle_t") ||
+					!strings.Contains(typs[2], "*") {
+					panic(fmt.Sprintf("%s L%d: unexpected typdef line %s", name, ln, t))
+				}
+				typs = typs[1:]
+				typs[0] = "uintptr"
+				typs[1] = strings.TrimPrefix(strings.TrimSpace(typs[1]), "*")
+			}
+			if len(typs) != 2 {
+				panic(fmt.Sprintf("%s L%d: unexpected typdef line %s", name, ln, t))
+			}
+			sname := strings.TrimSpace(strings.TrimSuffix(strings.TrimSpace(typs[1]), ";"))
+			val := us2camel(strings.TrimSuffix(sname, "_t"))
+			origtyp := strings.TrimSuffix(strings.TrimSpace(typs[0]), "_t")
+			checkSymbolName(symtab, ln, name, sname, &sb, f, func() symbol {
+				return newSymbolConst(sname, val)
+			})
+			f.WriteString("type ")
+			f.WriteString(val)
+			f.WriteString(" ")
+			f.WriteString(origtyp)
+			f.WriteString("\n\n")
 		}
 	}
 	return ln

gen/skip.go

@@ -1,46 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"errors"
-	"strings"
-)
-
-func skip2endif(scan *bufio.Scanner, ln int) int {
-	depth := 1
-	for scan.Scan() {
-		ln++
-		t := scan.Text()
-		switch {
-		case strings.HasPrefix(t, "#endif"):
-			depth--
-		case strings.HasPrefix(t, "#if"):
-			depth++
-		default:
-		}
-		if depth <= 0 {
-			break
-		}
-	}
-	return ln
-}
-
-func getinside0brakets(txt string) (string, int, error) {
-	depth := 0
-	a := 0
-	for i, t := range txt {
-		switch t {
-		case '(':
-			if depth == 0 {
-				a = i + 1
-			}
-			depth++
-		case ')':
-			depth--
-			if depth <= 0 {
-				return txt[a:i], i, nil
-			}
-		}
-	}
-	return "", 0, errors.New("no round brakets pair in " + txt)
-}

gen/symbol.go

@@ -40,7 +40,7 @@ type symbol struct {
 	fields []string
 }
 
-func newsymbolconst(name, val string) symbol {
+func newSymbolConst(name, val string) symbol {
 	return symbol{
 		stype:  symbolTypeConst,
 		name:   name,
@@ -48,7 +48,7 @@ func newsymbolconst(name, val string) symbol {
 	}
 }
 
-func newsymbolfunc(name, paras, evals string) symbol {
+func newSymbolFunc(name, paras, evals string) symbol {
 	return symbol{
 		stype:  symbolTypeConst,
 		name:   name,
@@ -56,7 +56,7 @@ func newsymbolfunc(name, paras, evals string) symbol {
 	}
 }
 
-func (s *symbol) extractfirstfunc(txt string) (args []string, a, b int, err error) {
+func (s *symbol) extract1stFunc(txt string) (args []string, a, b int, err error) {
 	if s.stype == symbolTypeConst {
 		return nil, 0, 0, errIsConstReplace
 	}
@@ -64,7 +64,7 @@ func (s *symbol) extractfirstfunc(txt string) (args []string, a, b int, err erro
 	if a < 0 {
 		return nil, 0, 0, errNoSuchSymbol
 	}
-	str, off, err := getinside0brakets(txt[a:])
+	str, off, err := getInsideRoundBrakets(txt[a:])
 	if err != nil {
 		return nil, 0, 0, err
 	}
@@ -82,7 +82,7 @@ func (s *symbol) replace(txt string) string {
 	case symbolTypeFunc:
 		paras := strings.Split(s.fields[0], ",")
 		for {
-			args, a, b, err := s.extractfirstfunc(txt)
+			args, a, b, err := s.extract1stFunc(txt)
 			if err == errNoSuchSymbol {
 				return txt
 			}

gen/utils.go

@@ -0,0 +1,88 @@
+package main
+
+import (
+	"bufio"
+	"errors"
+	"strings"
+	"unicode"
+)
+
+func skip2endif(scan *bufio.Scanner, ln int) int {
+	depth := 1
+	for scan.Scan() {
+		ln++
+		t := scan.Text()
+		switch {
+		case strings.HasPrefix(t, "#endif"):
+			depth--
+		case strings.HasPrefix(t, "#if"):
+			depth++
+		default:
+		}
+		if depth <= 0 {
+			break
+		}
+	}
+	return ln
+}
+
+func getInsideRoundBrakets(txt string) (string, int, error) {
+	depth := 0
+	a := 0
+	for i, t := range txt {
+		switch t {
+		case '(':
+			if depth == 0 {
+				a = i + 1
+			}
+			depth++
+		case ')':
+			depth--
+			if depth <= 0 {
+				return txt[a:i], i, nil
+			}
+		}
+	}
+	return "", 0, errors.New("no round brakets pair in " + txt)
+}
+
+func get1sentence(firstln string, scan *bufio.Scanner, ln int) (string, int) {
+	if strings.Contains(firstln, ";") {
+		return firstln, ln
+	}
+	sb := strings.Builder{}
+	sb.WriteString(firstln)
+	for scan.Scan() {
+		sb.WriteString("\n")
+		t := scan.Text()
+		ln++
+		sb.WriteString(t)
+		if strings.Contains(t, ";") {
+			return sb.String(), ln
+		}
+	}
+	return "", -1
+}
+
+func us2camel(t string) string {
+	sb := strings.Builder{}
+	for s := range strings.SplitSeq(t, "_") {
+		rs := []rune(s)
+		sb.WriteRune(unicode.ToUpper(rs[0]))
+		for _, r := range rs[1:] {
+			sb.WriteRune(unicode.ToLower(r))
+		}
+	}
+	return sb.String()
+}
+
+func trimEmptyStringArray(arr []string) []string {
+	news := make([]string, 0, len(arr))
+	for _, s := range arr {
+		if s == "" {
+			continue
+		}
+		news = append(news, s)
+	}
+	return news
+}