v0.0.303

.idea/golinter.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GoLinterSettings">
+    <option name="checkGoLinterExe" value="false" />
+  </component>
+</project>

README.md

@@ -23,6 +23,7 @@ Potentially needs `export GOPRIVATE="gogs.mikescher.com"`
 |             |            |                                                                                                               |
 | mongoext    | Mike       | Utility/Helper functions for mongodb                                                                          |
 | cursortoken | Mike       | MongoDB cursortoken implementation                                                                            |
+| pagination  | Mike       | Pagination implementation                                                                                     |
 |             |            |                                                                                                               |
 | totpext     | Mike       | Implementation of TOTP (2-Factor-Auth)                                                                        |
 | termext     | Mike       | Utilities for terminals (mostly color output)                                                                 |

bfcodegen/csid-generate.go

@@ -1,10 +1,12 @@
 package bfcodegen
 
 import (
+	"bytes"
+	_ "embed"
 	"errors"
 	"fmt"
+	"go/format"
 	"gogs.mikescher.com/BlackForestBytes/goext"
-	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
 	"gogs.mikescher.com/BlackForestBytes/goext/cryptext"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"gogs.mikescher.com/BlackForestBytes/goext/rext"
@@ -14,7 +16,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"strings"
-	"time"
+	"text/template"
 )
 
 type CSIDDef struct {
@@ -30,6 +32,9 @@ var rexCSIDDef = rext.W(regexp.MustCompile(`^\s*type\s+(?P<name>[A-Za-z0-9_]+)\s
 
 var rexCSIDChecksumConst = rext.W(regexp.MustCompile(`const ChecksumCharsetIDGenerator = "(?P<cs>[A-Za-z0-9_]*)"`))
 
+//go:embed csid-generate.template
+var templateCSIDGenerateText string
+
 func GenerateCharsetIDSpecs(sourceDir string, destFile string) error {
 
 	files, err := os.ReadDir(sourceDir)
@@ -95,25 +100,16 @@ func GenerateCharsetIDSpecs(sourceDir string, destFile string) error {
 		return errors.New("no package name found in any file")
 	}
 
-	err = os.WriteFile(destFile, []byte(fmtCSIDOutput(newChecksum, allIDs, pkgname)), 0o755)
+	fdata, err := format.Source([]byte(fmtCSIDOutput(newChecksum, allIDs, pkgname)))
 	if err != nil {
 		return err
 	}
 
-	res, err := cmdext.RunCommand("go", []string{"fmt", destFile}, langext.Ptr(2*time.Second))
+	err = os.WriteFile(destFile, fdata, 0o755)
 	if err != nil {
 		return err
 	}
 
-	if res.CommandTimedOut {
-		fmt.Println(res.StdCombined)
-		return errors.New("go fmt timed out")
-	}
-	if res.ExitCode != 0 {
-		fmt.Println(res.StdCombined)
-		return errors.New("go fmt did not succeed")
-	}
-
 	return nil
 }
 
@@ -168,198 +164,19 @@ func processCSIDFile(basedir string, fn string) ([]CSIDDef, string, error) {
 }
 
 func fmtCSIDOutput(cs string, ids []CSIDDef, pkgname string) string {
-	str := "// Code generated by id-generate.go DO NOT EDIT.\n"
+	templ := template.Must(template.New("csid-generate").Parse(templateCSIDGenerateText))
-	str += "\n"
-	str += "package " + pkgname + "\n"
-	str += "\n"
 
-	str += `import "crypto/rand"` + "\n"
+	buffer := bytes.Buffer{}
-	str += `import "fmt"` + "\n"
-	str += `import "github.com/go-playground/validator/v10"` + "\n"
-	str += `import "github.com/rs/zerolog/log"` + "\n"
-	str += `import "gogs.mikescher.com/BlackForestBytes/goext/exerr"` + "\n"
-	str += `import "gogs.mikescher.com/BlackForestBytes/goext/langext"` + "\n"
-	str += `import "gogs.mikescher.com/BlackForestBytes/goext/rext"` + "\n"
-	str += `import "math/big"` + "\n"
-	str += `import "reflect"` + "\n"
-	str += `import "regexp"` + "\n"
-	str += `import "strings"` + "\n"
-	str += "\n"
-
-	str += "const ChecksumCharsetIDGenerator = \"" + cs + "\" // GoExtVersion: " + goext.GoextVersion + "\n"
-	str += "\n"
-
-	str += "const idlen = 24\n"
-	str += "\n"
-	str += "const checklen = 1\n"
-	str += "\n"
-	str += `const idCharset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"` + "\n"
-	str += "const idCharsetLen = len(idCharset)\n"
-	str += "\n"
-	str += "var charSetReverseMap = generateCharsetMap()\n"
-	str += "\n"
-	str += "const (\n"
-	for _, iddef := range ids {
-		str += "	prefix" + iddef.Name + " = \"" + iddef.Prefix + "\"" + "\n"
-	}
-	str += ")\n"
-	str += "\n"
-	str += "var (\n"
-	for _, iddef := range ids {
-		str += "	regex" + iddef.Name + " = generateRegex(prefix" + iddef.Name + ")" + "\n"
-	}
-	str += ")\n"
-	str += "\n"
-	str += "func generateRegex(prefix string) rext.Regex {\n"
-	str += "	return rext.W(regexp.MustCompile(fmt.Sprintf(\"^%s[%s]{%d}[%s]{%d}$\", prefix, idCharset, idlen-len(prefix)-checklen, idCharset, checklen)))\n"
-	str += "}\n"
-	str += "\n"
-
-	str += `func generateCharsetMap() []int {` + "\n"
-	str += `	result := make([]int, 128)` + "\n"
-	str += `	for i := 0; i < len(result); i++ {` + "\n"
-	str += `		result[i] = -1` + "\n"
-	str += `	}` + "\n"
-	str += `	for idx, chr := range idCharset {` + "\n"
-	str += `		result[int(chr)] = idx` + "\n"
-	str += `	}` + "\n"
-	str += `	return result` + "\n"
-	str += `}` + "\n"
-	str += "\n"
-	str += `func generateID(prefix string) string {` + "\n"
-	str += `	k := ""` + "\n"
-	str += `	max := big.NewInt(int64(idCharsetLen))` + "\n"
-	str += `	checksum := 0` + "\n"
-	str += `	for i := 0; i < idlen-len(prefix)-checklen; i++ {` + "\n"
-	str += `		v, err := rand.Int(rand.Reader, max)` + "\n"
-	str += `		if err != nil {` + "\n"
-	str += `			panic(err)` + "\n"
-	str += `		}` + "\n"
-	str += `		v64 := v.Int64()` + "\n"
-	str += `		k += string(idCharset[v64])` + "\n"
-	str += `		checksum = (checksum + int(v64)) % (idCharsetLen)` + "\n"
-	str += `	}` + "\n"
-	str += `	checkstr := string(idCharset[checksum%idCharsetLen])` + "\n"
-	str += `	return prefix + k + checkstr` + "\n"
-	str += `}` + "\n"
-	str += "\n"
-	str += `func validateID(prefix string, value string) error {` + "\n"
-	str += `	if len(value) != idlen {` + "\n"
-	str += `		return exerr.New(exerr.TypeInvalidCSID, "id has the wrong length").Str("value", value).Build()` + "\n"
-	str += `	}` + "\n"
-	str += "\n"
-	str += `	if !strings.HasPrefix(value, prefix) {` + "\n"
-	str += `		return exerr.New(exerr.TypeInvalidCSID, "id is missing the correct prefix").Str("value", value).Str("prefix", prefix).Build()` + "\n"
-	str += `	}` + "\n"
-	str += "\n"
-	str += `	checksum := 0` + "\n"
-	str += `	for i := len(prefix); i < len(value)-checklen; i++ {` + "\n"
-	str += `		ichr := int(value[i])` + "\n"
-	str += `		if ichr < 0 || ichr >= len(charSetReverseMap) || charSetReverseMap[ichr] == -1 {` + "\n"
-	str += `			return exerr.New(exerr.TypeInvalidCSID, "id contains invalid characters").Str("value", value).Build()` + "\n"
-	str += `		}` + "\n"
-	str += `		checksum = (checksum + charSetReverseMap[ichr]) % (idCharsetLen)` + "\n"
-	str += `	}` + "\n"
-	str += "\n"
-	str += `	checkstr := string(idCharset[checksum%idCharsetLen])` + "\n"
-	str += "\n"
-	str += `	if !strings.HasSuffix(value, checkstr) {` + "\n"
-	str += `		return exerr.New(exerr.TypeInvalidCSID, "id checkstring is invalid").Str("value", value).Str("checkstr", checkstr).Build()` + "\n"
-	str += `	}` + "\n"
-	str += "\n"
-	str += `	return nil` + "\n"
-	str += `}` + "\n"
-	str += "\n"
-	str += `func getRawData(prefix string, value string) string {` + "\n"
-	str += `	if len(value) != idlen {` + "\n"
-	str += `		return ""` + "\n"
-	str += `	}` + "\n"
-	str += `	return value[len(prefix) : idlen-checklen]` + "\n"
-	str += `}` + "\n"
-	str += "\n"
-	str += `func getCheckString(prefix string, value string) string {` + "\n"
-	str += `	if len(value) != idlen {` + "\n"
-	str += `		return ""` + "\n"
-	str += `	}` + "\n"
-	str += `	return value[idlen-checklen:]` + "\n"
-	str += `}` + "\n"
-	str += "\n"
-	str += `func ValidateEntityID(vfl validator.FieldLevel) bool {` + "\n"
-	str += `	if !vfl.Field().CanInterface() {` + "\n"
-	str += `		log.Error().Msgf("Failed to validate EntityID (cannot interface ?!?)")` + "\n"
-	str += `		return false` + "\n"
-	str += `	}` + "\n"
-	str += "\n"
-	str += `	ifvalue := vfl.Field().Interface()` + "\n"
-	str += "\n"
-	str += `	if value1, ok := ifvalue.(EntityID); ok {` + "\n"
-	str += "\n"
-	str += `		if vfl.Field().Type().Kind() == reflect.Pointer && langext.IsNil(value1) {` + "\n"
-	str += `			return true` + "\n"
-	str += `		}` + "\n"
-	str += "\n"
-	str += `		if err := value1.Valid(); err != nil {` + "\n"
-	str += `			log.Debug().Msgf("Failed to validate EntityID '%s' (%s)", value1.String(), err.Error())` + "\n"
-	str += `			return false` + "\n"
-	str += `		} else {` + "\n"
-	str += `			return true` + "\n"
-	str += `		}` + "\n"
-	str += "\n"
-	str += `	} else {` + "\n"
-	str += `		log.Error().Msgf("Failed to validate EntityID (wrong type: %T)", ifvalue)` + "\n"
-	str += `		return false` + "\n"
-	str += `	}` + "\n"
-	str += `}` + "\n"
-	str += "\n"
-
-	for _, iddef := range ids {
-
-		str += "// ================================ " + iddef.Name + " (" + iddef.FileRelative + ") ================================" + "\n"
-		str += "" + "\n"
-
-		str += "func New" + iddef.Name + "() " + iddef.Name + " {" + "\n"
-		str += "	return " + iddef.Name + "(generateID(prefix" + iddef.Name + "))" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (id " + iddef.Name + ") Valid() error {" + "\n"
-		str += "	return validateID(prefix" + iddef.Name + ", string(id))" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (i " + iddef.Name + ") String() string {" + "\n"
-		str += "	return string(i)" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (i " + iddef.Name + ") Prefix() string {" + "\n"
-		str += "	return prefix" + iddef.Name + "" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (id " + iddef.Name + ") Raw() string {" + "\n"
-		str += "	return getRawData(prefix" + iddef.Name + ", string(id))" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (id " + iddef.Name + ") CheckString() string {" + "\n"
-		str += "	return getCheckString(prefix" + iddef.Name + ", string(id))" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (id " + iddef.Name + ") Regex() rext.Regex {" + "\n"
-		str += "	return regex" + iddef.Name + "" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
 
+	err := templ.Execute(&buffer, langext.H{
+		"PkgName":      pkgname,
+		"Checksum":     cs,
+		"GoextVersion": goext.GoextVersion,
+		"IDs":          ids,
+	})
+	if err != nil {
+		panic(err)
 	}
 
-	return str
+	return buffer.String()
 }

bfcodegen/csid-generate.template

@@ -0,0 +1,190 @@
+// Code generated by csid-generate.go DO NOT EDIT.
+
+package {{.PkgName}}
+
+import "crypto/rand"
+import "crypto/sha256"
+import "fmt"
+import "github.com/go-playground/validator/v10"
+import "github.com/rs/zerolog/log"
+import "gogs.mikescher.com/BlackForestBytes/goext/exerr"
+import "gogs.mikescher.com/BlackForestBytes/goext/langext"
+import "gogs.mikescher.com/BlackForestBytes/goext/rext"
+import "math/big"
+import "reflect"
+import "regexp"
+import "strings"
+
+const ChecksumCharsetIDGenerator = "{{.Checksum}}" // GoExtVersion: {{.GoextVersion}}
+
+const idlen = 24
+
+const checklen = 1
+
+const idCharset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+const idCharsetLen = len(idCharset)
+
+var charSetReverseMap = generateCharsetMap()
+
+const ({{range .IDs}}
+	prefix{{.Name}} = "{{.Prefix}}" {{end}}
+)
+
+var ({{range .IDs}}
+	regex{{.Name}} = generateRegex(prefix{{.Name}}) {{end}}
+)
+
+func generateRegex(prefix string) rext.Regex {
+	return rext.W(regexp.MustCompile(fmt.Sprintf("^%s[%s]{%d}[%s]{%d}$", prefix, idCharset, idlen-len(prefix)-checklen, idCharset, checklen)))
+}
+
+func generateCharsetMap() []int {
+	result := make([]int, 128)
+	for i := 0; i < len(result); i++ {
+		result[i] = -1
+	}
+	for idx, chr := range idCharset {
+		result[int(chr)] = idx
+	}
+	return result
+}
+
+func generateID(prefix string) string {
+	k := ""
+	csMax := big.NewInt(int64(idCharsetLen))
+	checksum := 0
+	for i := 0; i < idlen-len(prefix)-checklen; i++ {
+		v, err := rand.Int(rand.Reader, csMax)
+		if err != nil {
+			panic(err)
+		}
+		v64 := v.Int64()
+		k += string(idCharset[v64])
+		checksum = (checksum + int(v64)) % (idCharsetLen)
+	}
+	checkstr := string(idCharset[checksum%idCharsetLen])
+	return prefix + k + checkstr
+}
+
+func generateIDFromSeed(prefix string, seed string) string {
+	h := sha256.New()
+
+	iddata := ""
+	for len(iddata) < idlen-len(prefix)-checklen {
+		h.Write([]byte(seed))
+		bs := h.Sum(nil)
+		iddata += langext.NewAnyBaseConverter(idCharset).Encode(bs)
+	}
+
+	checksum := 0
+	for i := 0; i < idlen-len(prefix)-checklen; i++ {
+		ichr := int(iddata[i])
+		checksum = (checksum + charSetReverseMap[ichr]) % (idCharsetLen)
+	}
+
+	checkstr := string(idCharset[checksum%idCharsetLen])
+
+	return prefix + iddata[:(idlen-len(prefix)-checklen)] + checkstr
+}
+
+func validateID(prefix string, value string) error {
+	if len(value) != idlen {
+		return exerr.New(exerr.TypeInvalidCSID, "id has the wrong length").Str("value", value).Build()
+	}
+
+	if !strings.HasPrefix(value, prefix) {
+		return exerr.New(exerr.TypeInvalidCSID, "id is missing the correct prefix").Str("value", value).Str("prefix", prefix).Build()
+	}
+
+	checksum := 0
+	for i := len(prefix); i < len(value)-checklen; i++ {
+		ichr := int(value[i])
+		if ichr < 0 || ichr >= len(charSetReverseMap) || charSetReverseMap[ichr] == -1 {
+			return exerr.New(exerr.TypeInvalidCSID, "id contains invalid characters").Str("value", value).Build()
+		}
+		checksum = (checksum + charSetReverseMap[ichr]) % (idCharsetLen)
+	}
+
+	checkstr := string(idCharset[checksum%idCharsetLen])
+
+	if !strings.HasSuffix(value, checkstr) {
+		return exerr.New(exerr.TypeInvalidCSID, "id checkstring is invalid").Str("value", value).Str("checkstr", checkstr).Build()
+	}
+
+	return nil
+}
+
+func getRawData(prefix string, value string) string {
+	if len(value) != idlen {
+		return ""
+	}
+	return value[len(prefix) : idlen-checklen]
+}
+
+func getCheckString(prefix string, value string) string {
+	if len(value) != idlen {
+		return ""
+	}
+	return value[idlen-checklen:]
+}
+
+func ValidateEntityID(vfl validator.FieldLevel) bool {
+	if !vfl.Field().CanInterface() {
+		log.Error().Msgf("Failed to validate EntityID (cannot interface ?!?)")
+		return false
+	}
+
+	ifvalue := vfl.Field().Interface()
+
+	if value1, ok := ifvalue.(EntityID); ok {
+
+		if vfl.Field().Type().Kind() == reflect.Pointer && langext.IsNil(value1) {
+			return true
+		}
+
+		if err := value1.Valid(); err != nil {
+			log.Debug().Msgf("Failed to validate EntityID '%s' (%s)", value1.String(), err.Error())
+			return false
+		} else {
+			return true
+		}
+
+	} else {
+		log.Error().Msgf("Failed to validate EntityID (wrong type: %T)", ifvalue)
+		return false
+	}
+}
+
+{{range .IDs}}
+
+// ================================ {{.Name}} ({{.FileRelative}}) ================================
+
+func New{{.Name}}() {{.Name}} {
+	return {{.Name}}(generateID(prefix{{.Name}}))
+}
+
+func (id {{.Name}}) Valid() error {
+	return validateID(prefix{{.Name}}, string(id))
+}
+
+func (i {{.Name}}) String() string {
+	return string(i)
+}
+
+func (i {{.Name}}) Prefix() string {
+	return prefix{{.Name}}
+}
+
+func (id {{.Name}}) Raw() string {
+	return getRawData(prefix{{.Name}}, string(id))
+}
+
+func (id {{.Name}}) CheckString() string {
+	return getCheckString(prefix{{.Name}}, string(id))
+}
+
+func (id {{.Name}}) Regex() rext.Regex {
+	return regex{{.Name}}
+}
+
+{{end}}

bfcodegen/csid-generate_test.go

@@ -0,0 +1,52 @@
+package bfcodegen
+
+import (
+	_ "embed"
+	"fmt"
+	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+//go:embed _test_example.tgz
+var CSIDExampleModels []byte
+
+func TestGenerateCSIDSpecs(t *testing.T) {
+
+	tmpFile := filepath.Join(t.TempDir(), langext.MustHexUUID()+".tgz")
+
+	tmpDir := filepath.Join(t.TempDir(), langext.MustHexUUID())
+
+	err := os.WriteFile(tmpFile, CSIDExampleModels, 0o777)
+	tst.AssertNoErr(t, err)
+
+	t.Cleanup(func() { _ = os.Remove(tmpFile) })
+
+	err = os.Mkdir(tmpDir, 0o777)
+	tst.AssertNoErr(t, err)
+
+	t.Cleanup(func() { _ = os.RemoveAll(tmpFile) })
+
+	_, err = cmdext.Runner("tar").Arg("-xvzf").Arg(tmpFile).Arg("-C").Arg(tmpDir).FailOnExitCode().FailOnTimeout().Timeout(time.Minute).Run()
+	tst.AssertNoErr(t, err)
+
+	err = GenerateCharsetIDSpecs(tmpDir, tmpDir+"/csid_gen.go")
+	tst.AssertNoErr(t, err)
+
+	err = GenerateCharsetIDSpecs(tmpDir, tmpDir+"/csid_gen.go")
+	tst.AssertNoErr(t, err)
+
+	fmt.Println()
+	fmt.Println()
+	fmt.Println()
+	fmt.Println("=====================================================================================================")
+	fmt.Println(string(tst.Must(os.ReadFile(tmpDir + "/csid_gen.go"))(t)))
+	fmt.Println("=====================================================================================================")
+	fmt.Println()
+	fmt.Println()
+	fmt.Println()
+}

bfcodegen/enum-generate.go

@@ -1,10 +1,12 @@
 package bfcodegen
 
 import (
+	"bytes"
+	_ "embed"
 	"errors"
 	"fmt"
+	"go/format"
 	"gogs.mikescher.com/BlackForestBytes/goext"
-	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
 	"gogs.mikescher.com/BlackForestBytes/goext/cryptext"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"gogs.mikescher.com/BlackForestBytes/goext/rext"
@@ -14,7 +16,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"strings"
-	"time"
+	"text/template"
 )
 
 type EnumDefVal struct {
@@ -39,6 +41,9 @@ var rexEnumValueDef = rext.W(regexp.MustCompile(`^\s*(?P<name>[A-Za-z0-9_]+)\s+(
 
 var rexEnumChecksumConst = rext.W(regexp.MustCompile(`const ChecksumEnumGenerator = "(?P<cs>[A-Za-z0-9_]*)"`))
 
+//go:embed enum-generate.template
+var templateEnumGenerateText string
+
 func GenerateEnumSpecs(sourceDir string, destFile string) error {
 
 	files, err := os.ReadDir(sourceDir)
@@ -104,25 +109,16 @@ func GenerateEnumSpecs(sourceDir string, destFile string) error {
 		return errors.New("no package name found in any file")
 	}
 
-	err = os.WriteFile(destFile, []byte(fmtEnumOutput(newChecksum, allEnums, pkgname)), 0o755)
+	fdata, err := format.Source([]byte(fmtEnumOutput(newChecksum, allEnums, pkgname)))
 	if err != nil {
 		return err
 	}
 
-	res, err := cmdext.RunCommand("go", []string{"fmt", destFile}, langext.Ptr(2*time.Second))
+	err = os.WriteFile(destFile, fdata, 0o755)
 	if err != nil {
 		return err
 	}
 
-	if res.CommandTimedOut {
-		fmt.Println(res.StdCombined)
-		return errors.New("go fmt timed out")
-	}
-	if res.ExitCode != 0 {
-		fmt.Println(res.StdCombined)
-		return errors.New("go fmt did not succeed")
-	}
-
 	return nil
 }
 
@@ -204,133 +200,32 @@ func processEnumFile(basedir string, fn string) ([]EnumDef, string, error) {
 }
 
 func fmtEnumOutput(cs string, enums []EnumDef, pkgname string) string {
-	str := "// Code generated by enum-generate.go DO NOT EDIT.\n"
-	str += "\n"
-	str += "package " + pkgname + "\n"
-	str += "\n"
 
-	str += "import \"gogs.mikescher.com/BlackForestBytes/goext/langext\"" + "\n"
+	templ := template.New("enum-generate")
-	str += "import \"gogs.mikescher.com/BlackForestBytes/goext/enums\"" + "\n"
-	str += "\n"
 
-	str += "const ChecksumEnumGenerator = \"" + cs + "\" // GoExtVersion: " + goext.GoextVersion + "\n"
+	templ = templ.Funcs(template.FuncMap{
-	str += "\n"
+		"boolToStr": func(b bool) string { return langext.Conditional(b, "true", "false") },
+		"deref":     func(v *string) string { return *v },
+		"trimSpace": func(str string) string { return strings.TrimSpace(str) },
+		"hasStr":    func(v EnumDef) bool { return v.Type == "string" },
+		"hasDescr": func(v EnumDef) bool {
+			return langext.ArrAll(v.Values, func(val EnumDefVal) bool { return val.Description != nil })
+		},
+	})
 
-	for _, enumdef := range enums {
+	templ = template.Must(templ.Parse(templateEnumGenerateText))
 
-		hasDescr := langext.ArrAll(enumdef.Values, func(val EnumDefVal) bool { return val.Description != nil })
+	buffer := bytes.Buffer{}
-		hasStr := enumdef.Type == "string"
-
-		str += "// ================================ " + enumdef.EnumTypeName + " ================================" + "\n"
-		str += "//" + "\n"
-		str += "// File:       " + enumdef.FileRelative + "\n"
-		str += "// StringEnum: " + langext.Conditional(hasStr, "true", "false") + "\n"
-		str += "// DescrEnum:  " + langext.Conditional(hasDescr, "true", "false") + "\n"
-		str += "//" + "\n"
-		str += "" + "\n"
-
-		str += "var __" + enumdef.EnumTypeName + "Values = []" + enumdef.EnumTypeName + "{" + "\n"
-		for _, v := range enumdef.Values {
-			str += "    " + v.VarName + "," + "\n"
-		}
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		if hasDescr {
-			str += "var __" + enumdef.EnumTypeName + "Descriptions = map[" + enumdef.EnumTypeName + "]string{" + "\n"
-			for _, v := range enumdef.Values {
-				str += "    " + v.VarName + ": \"" + strings.TrimSpace(*v.Description) + "\"," + "\n"
-			}
-			str += "}" + "\n"
-			str += "" + "\n"
-		}
-
-		str += "var __" + enumdef.EnumTypeName + "Varnames = map[" + enumdef.EnumTypeName + "]string{" + "\n"
-		for _, v := range enumdef.Values {
-			str += "    " + v.VarName + ": \"" + v.VarName + "\"," + "\n"
-		}
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		str += "func (e " + enumdef.EnumTypeName + ") Valid() bool {" + "\n"
-		str += "    return langext.InArray(e, __" + enumdef.EnumTypeName + "Values)" + "\n"
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		str += "func (e " + enumdef.EnumTypeName + ") Values() []" + enumdef.EnumTypeName + " {" + "\n"
-		str += "    return __" + enumdef.EnumTypeName + "Values" + "\n"
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		str += "func (e " + enumdef.EnumTypeName + ") ValuesAny() []any {" + "\n"
-		str += "    return langext.ArrCastToAny(__" + enumdef.EnumTypeName + "Values)" + "\n"
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		str += "func (e " + enumdef.EnumTypeName + ") ValuesMeta() []enums.EnumMetaValue {" + "\n"
-		str += "    return " + enumdef.EnumTypeName + "ValuesMeta()"
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		if hasStr {
-			str += "func (e " + enumdef.EnumTypeName + ") String() string {" + "\n"
-			str += "    return string(e)" + "\n"
-			str += "}" + "\n"
-			str += "" + "\n"
-		}
-
-		if hasDescr {
-			str += "func (e " + enumdef.EnumTypeName + ") Description() string {" + "\n"
-			str += "    if d, ok := __" + enumdef.EnumTypeName + "Descriptions[e]; ok {" + "\n"
-			str += "        return d" + "\n"
-			str += "    }" + "\n"
-			str += "    return \"\"" + "\n"
-			str += "}" + "\n"
-			str += "" + "\n"
-		}
-
-		str += "func (e " + enumdef.EnumTypeName + ") VarName() string {" + "\n"
-		str += "    if d, ok := __" + enumdef.EnumTypeName + "Varnames[e]; ok {" + "\n"
-		str += "        return d" + "\n"
-		str += "    }" + "\n"
-		str += "    return \"\"" + "\n"
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		str += "func (e " + enumdef.EnumTypeName + ") Meta() enums.EnumMetaValue {" + "\n"
-		if hasDescr {
-			str += "    return enums.EnumMetaValue{VarName: e.VarName(), Value: e, Description: langext.Ptr(e.Description())}"
-		} else {
-			str += "    return enums.EnumMetaValue{VarName: e.VarName(), Value: e, Description: nil}"
-		}
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		str += "func Parse" + enumdef.EnumTypeName + "(vv string) (" + enumdef.EnumTypeName + ", bool) {" + "\n"
-		str += "    for _, ev := range __" + enumdef.EnumTypeName + "Values {" + "\n"
-		str += "        if string(ev) == vv {" + "\n"
-		str += "            return ev, true" + "\n"
-		str += "        }" + "\n"
-		str += "    }" + "\n"
-		str += "    return \"\", false" + "\n"
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		str += "func " + enumdef.EnumTypeName + "Values() []" + enumdef.EnumTypeName + " {" + "\n"
-		str += "    return __" + enumdef.EnumTypeName + "Values" + "\n"
-		str += "}" + "\n"
-		str += "" + "\n"
-
-		str += "func " + enumdef.EnumTypeName + "ValuesMeta() []enums.EnumMetaValue {" + "\n"
-		str += "    return []enums.EnumMetaValue{" + "\n"
-		for _, v := range enumdef.Values {
-			str += "        " + v.VarName + ".Meta(),\n"
-		}
-		str += "    }" + "\n"
-		str += "}" + "\n"
-		str += "" + "\n"
 
+	err := templ.Execute(&buffer, langext.H{
+		"PkgName":      pkgname,
+		"Checksum":     cs,
+		"GoextVersion": goext.GoextVersion,
+		"Enums":        enums,
+	})
+	if err != nil {
+		panic(err)
 	}
 
-	return str
+	return buffer.String()
 }

bfcodegen/enum-generate.template

@@ -0,0 +1,97 @@
+// Code generated by enum-generate.go DO NOT EDIT.
+
+package {{.PkgName}}
+
+import "gogs.mikescher.com/BlackForestBytes/goext/langext"
+import "gogs.mikescher.com/BlackForestBytes/goext/enums"
+
+const ChecksumEnumGenerator = "{{.Checksum}}" // GoExtVersion: {{.GoextVersion}}
+
+{{range .Enums}}
+
+{{ $hasStr   := ( . | hasStr   ) }}
+{{ $hasDescr := ( . | hasDescr ) }}
+
+// ================================ {{.EnumTypeName}} ================================
+//
+// File:       {{.FileRelative}}
+// StringEnum: {{$hasStr   | boolToStr}}
+// DescrEnum:  {{$hasDescr | boolToStr}}
+//
+
+var __{{.EnumTypeName}}Values = []{{.EnumTypeName}}{ {{range .Values}}
+	{{.VarName}}, {{end}}
+}
+
+{{if $hasDescr}}
+var __{{.EnumTypeName}}Descriptions = map[{{.EnumTypeName}}]string{ {{range .Values}}
+	{{.VarName}}: "{{.Description | deref | trimSpace}}", {{end}}
+}
+{{end}}
+
+var __{{.EnumTypeName}}Varnames = map[{{.EnumTypeName}}]string{ {{range .Values}}
+	{{.VarName}}: "{{.VarName}}", {{end}}
+}
+
+func (e {{.EnumTypeName}}) Valid() bool {
+	return langext.InArray(e, __{{.EnumTypeName}}Values)
+}
+
+func (e {{.EnumTypeName}}) Values() []{{.EnumTypeName}} {
+	return __{{.EnumTypeName}}Values
+}
+
+func (e {{.EnumTypeName}}) ValuesAny() []any {
+	return langext.ArrCastToAny(__{{.EnumTypeName}}Values)
+}
+
+func (e {{.EnumTypeName}}) ValuesMeta() []enums.EnumMetaValue {
+	return {{.EnumTypeName}}ValuesMeta()
+}
+
+{{if $hasStr}}
+func (e {{.EnumTypeName}}) String() string {
+	return string(e)
+}
+{{end}}
+
+{{if $hasDescr}}
+func (e {{.EnumTypeName}}) Description() string {
+	if d, ok := __{{.EnumTypeName}}Descriptions[e]; ok {
+		return d
+	}
+	return ""
+}
+{{end}}
+
+func (e {{.EnumTypeName}}) VarName() string {
+	if d, ok := __{{.EnumTypeName}}Varnames[e]; ok {
+		return d
+	}
+	return ""
+}
+
+func (e {{.EnumTypeName}}) Meta() enums.EnumMetaValue {
+    {{if $hasDescr}} return enums.EnumMetaValue{VarName: e.VarName(), Value: e, Description: langext.Ptr(e.Description())} {{else}} return enums.EnumMetaValue{VarName: e.VarName(), Value: e, Description: nil} {{end}}
+}
+
+func Parse{{.EnumTypeName}}(vv string) ({{.EnumTypeName}}, bool) {
+	for _, ev := range __{{.EnumTypeName}}Values {
+		if string(ev) == vv {
+			return ev, true
+		}
+	}
+	return "", false
+}
+
+func {{.EnumTypeName}}Values() []{{.EnumTypeName}} {
+	return __{{.EnumTypeName}}Values
+}
+
+func {{.EnumTypeName}}ValuesMeta() []enums.EnumMetaValue {
+	return []enums.EnumMetaValue{ {{range .Values}}
+            {{.VarName}}.Meta(), {{end}}
+	}
+}
+
+{{end}}

bfcodegen/enum-generate_test.go

@@ -2,6 +2,7 @@ package bfcodegen
 
 import (
 	_ "embed"
+	"fmt"
 	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"gogs.mikescher.com/BlackForestBytes/goext/tst"
@@ -12,7 +13,7 @@ import (
 )
 
 //go:embed _test_example.tgz
-var ExampleModels []byte
+var EnumExampleModels []byte
 
 func TestGenerateEnumSpecs(t *testing.T) {
 
@@ -20,7 +21,7 @@ func TestGenerateEnumSpecs(t *testing.T) {
 
 	tmpDir := filepath.Join(t.TempDir(), langext.MustHexUUID())
 
-	err := os.WriteFile(tmpFile, ExampleModels, 0o777)
+	err := os.WriteFile(tmpFile, EnumExampleModels, 0o777)
 	tst.AssertNoErr(t, err)
 
 	t.Cleanup(func() { _ = os.Remove(tmpFile) })
@@ -39,4 +40,13 @@ func TestGenerateEnumSpecs(t *testing.T) {
 	err = GenerateEnumSpecs(tmpDir, tmpDir+"/enums_gen.go")
 	tst.AssertNoErr(t, err)
 
+	fmt.Println()
+	fmt.Println()
+	fmt.Println()
+	fmt.Println("=====================================================================================================")
+	fmt.Println(string(tst.Must(os.ReadFile(tmpDir + "/enums_gen.go"))(t)))
+	fmt.Println("=====================================================================================================")
+	fmt.Println()
+	fmt.Println()
+	fmt.Println()
 }

bfcodegen/id-generate.go

@@ -1,10 +1,12 @@
 package bfcodegen
 
 import (
+	"bytes"
+	_ "embed"
 	"errors"
 	"fmt"
+	"go/format"
 	"gogs.mikescher.com/BlackForestBytes/goext"
-	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
 	"gogs.mikescher.com/BlackForestBytes/goext/cryptext"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
 	"gogs.mikescher.com/BlackForestBytes/goext/rext"
@@ -14,7 +16,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"strings"
-	"time"
+	"text/template"
 )
 
 type IDDef struct {
@@ -29,6 +31,9 @@ var rexIDDef = rext.W(regexp.MustCompile(`^\s*type\s+(?P<name>[A-Za-z0-9_]+)\s+s
 
 var rexIDChecksumConst = rext.W(regexp.MustCompile(`const ChecksumIDGenerator = "(?P<cs>[A-Za-z0-9_]*)"`))
 
+//go:embed id-generate.template
+var templateIDGenerateText string
+
 func GenerateIDSpecs(sourceDir string, destFile string) error {
 
 	files, err := os.ReadDir(sourceDir)
@@ -94,25 +99,16 @@ func GenerateIDSpecs(sourceDir string, destFile string) error {
 		return errors.New("no package name found in any file")
 	}
 
-	err = os.WriteFile(destFile, []byte(fmtIDOutput(newChecksum, allIDs, pkgname)), 0o755)
+	fdata, err := format.Source([]byte(fmtIDOutput(newChecksum, allIDs, pkgname)))
 	if err != nil {
 		return err
 	}
 
-	res, err := cmdext.RunCommand("go", []string{"fmt", destFile}, langext.Ptr(2*time.Second))
+	err = os.WriteFile(destFile, fdata, 0o755)
 	if err != nil {
 		return err
 	}
 
-	if res.CommandTimedOut {
-		fmt.Println(res.StdCombined)
-		return errors.New("go fmt timed out")
-	}
-	if res.ExitCode != 0 {
-		fmt.Println(res.StdCombined)
-		return errors.New("go fmt did not succeed")
-	}
-
 	return nil
 }
 
@@ -166,71 +162,22 @@ func processIDFile(basedir string, fn string) ([]IDDef, string, error) {
 }
 
 func fmtIDOutput(cs string, ids []IDDef, pkgname string) string {
-	str := "// Code generated by id-generate.go DO NOT EDIT.\n"
+	templ := template.Must(template.New("id-generate").Parse(templateIDGenerateText))
-	str += "\n"
-	str += "package " + pkgname + "\n"
-	str += "\n"
 
-	str += "import \"go.mongodb.org/mongo-driver/bson\"" + "\n"
+	buffer := bytes.Buffer{}
-	str += "import \"go.mongodb.org/mongo-driver/bson/bsontype\"" + "\n"
-	str += "import \"go.mongodb.org/mongo-driver/bson/primitive\"" + "\n"
-	str += "import \"gogs.mikescher.com/BlackForestBytes/goext/exerr\"" + "\n"
-	str += "\n"
-
-	str += "const ChecksumIDGenerator = \"" + cs + "\" // GoExtVersion: " + goext.GoextVersion + "\n"
-	str += "\n"
 
 	anyDef := langext.ArrFirstOrNil(ids, func(def IDDef) bool { return def.Name == "AnyID" || def.Name == "AnyId" })
 
-	for _, iddef := range ids {
+	err := templ.Execute(&buffer, langext.H{
-
+		"PkgName":      pkgname,
-		str += "// ================================ " + iddef.Name + " (" + iddef.FileRelative + ") ================================" + "\n"
+		"Checksum":     cs,
-		str += "" + "\n"
+		"GoextVersion": goext.GoextVersion,
-
+		"IDs":          ids,
-		str += "func (i " + iddef.Name + ") MarshalBSONValue() (bsontype.Type, []byte, error) {" + "\n"
+		"AnyDef":       anyDef,
-		str += "	if objId, err := primitive.ObjectIDFromHex(string(i)); err == nil {" + "\n"
+	})
-		str += "		return bson.MarshalValue(objId)" + "\n"
+	if err != nil {
-		str += "	} else {" + "\n"
+		panic(err)
-		str += "		return 0, nil, exerr.New(exerr.TypeMarshalEntityID, \"Failed to marshal " + iddef.Name + "(\"+i.String()+\") to ObjectId\").Str(\"value\", string(i)).Type(\"type\", i).Build()" + "\n"
-		str += "	}" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (i " + iddef.Name + ") String() string {" + "\n"
-		str += "	return string(i)" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (i " + iddef.Name + ") ObjID() (primitive.ObjectID, error) {" + "\n"
-		str += "	return primitive.ObjectIDFromHex(string(i))" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		str += "func (i " + iddef.Name + ") Valid() bool {" + "\n"
-		str += "	_, err := primitive.ObjectIDFromHex(string(i))" + "\n"
-		str += "	return err == nil" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
-		if anyDef != nil {
-			str += "func (i " + iddef.Name + ") AsAny() " + anyDef.Name + " {" + "\n"
-			str += "	return " + anyDef.Name + "(i)" + "\n"
-			str += "}" + "\n"
-
-			str += "" + "\n"
-		}
-
-		str += "func New" + iddef.Name + "() " + iddef.Name + " {" + "\n"
-		str += "	return " + iddef.Name + "(primitive.NewObjectID().Hex())" + "\n"
-		str += "}" + "\n"
-
-		str += "" + "\n"
-
 	}
 
-	return str
+	return buffer.String()
 }

bfcodegen/id-generate.template

@@ -0,0 +1,47 @@
+// Code generated by id-generate.go DO NOT EDIT.
+
+package {{.PkgName}}
+
+import "go.mongodb.org/mongo-driver/bson"
+import "go.mongodb.org/mongo-driver/bson/bsontype"
+import "go.mongodb.org/mongo-driver/bson/primitive"
+import "gogs.mikescher.com/BlackForestBytes/goext/exerr"
+
+const ChecksumIDGenerator = "{{.Checksum}}" // GoExtVersion: {{.GoextVersion}}
+
+{{range .IDs}}
+
+// ================================ {{.Name}} ({{.FileRelative}}) ================================
+
+func (i {{.Name}}) MarshalBSONValue() (bsontype.Type, []byte, error) {
+	if objId, err := primitive.ObjectIDFromHex(string(i)); err == nil {
+		return bson.MarshalValue(objId)
+	} else {
+		return 0, nil, exerr.New(exerr.TypeMarshalEntityID, "Failed to marshal {{.Name}}("+i.String()+") to ObjectId").Str("value", string(i)).Type("type", i).Build()
+	}
+}
+
+func (i {{.Name}}) String() string {
+	return string(i)
+}
+
+func (i {{.Name}}) ObjID() (primitive.ObjectID, error) {
+	return primitive.ObjectIDFromHex(string(i))
+}
+
+func (i {{.Name}}) Valid() bool {
+	_, err := primitive.ObjectIDFromHex(string(i))
+	return err == nil
+}
+
+{{if ne $.AnyDef nil}}
+func (i {{.Name}}) AsAny() {{$.AnyDef.Name}} {
+	return {{$.AnyDef.Name}}(i)
+}
+{{end}}
+
+func New{{.Name}}() {{.Name}} {
+	return {{.Name}}(primitive.NewObjectID().Hex())
+}
+
+{{end}}

bfcodegen/id-generate_test.go

@@ -0,0 +1,52 @@
+package bfcodegen
+
+import (
+	_ "embed"
+	"fmt"
+	"gogs.mikescher.com/BlackForestBytes/goext/cmdext"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+//go:embed _test_example.tgz
+var IDExampleModels []byte
+
+func TestGenerateIDSpecs(t *testing.T) {
+
+	tmpFile := filepath.Join(t.TempDir(), langext.MustHexUUID()+".tgz")
+
+	tmpDir := filepath.Join(t.TempDir(), langext.MustHexUUID())
+
+	err := os.WriteFile(tmpFile, IDExampleModels, 0o777)
+	tst.AssertNoErr(t, err)
+
+	t.Cleanup(func() { _ = os.Remove(tmpFile) })
+
+	err = os.Mkdir(tmpDir, 0o777)
+	tst.AssertNoErr(t, err)
+
+	t.Cleanup(func() { _ = os.RemoveAll(tmpFile) })
+
+	_, err = cmdext.Runner("tar").Arg("-xvzf").Arg(tmpFile).Arg("-C").Arg(tmpDir).FailOnExitCode().FailOnTimeout().Timeout(time.Minute).Run()
+	tst.AssertNoErr(t, err)
+
+	err = GenerateIDSpecs(tmpDir, tmpDir+"/id_gen.go")
+	tst.AssertNoErr(t, err)
+
+	err = GenerateIDSpecs(tmpDir, tmpDir+"/id_gen.go")
+	tst.AssertNoErr(t, err)
+
+	fmt.Println()
+	fmt.Println()
+	fmt.Println()
+	fmt.Println("=====================================================================================================")
+	fmt.Println(string(tst.Must(os.ReadFile(tmpDir + "/id_gen.go"))(t)))
+	fmt.Println("=====================================================================================================")
+	fmt.Println()
+	fmt.Println()
+	fmt.Println()
+}

cryptext/passHash.go

@@ -66,7 +66,6 @@ func (ph PassHash) Data() (_version int, _seed []byte, _payload []byte, _totp bo
 		return int(version), nil, payload, false, nil, true
 	}
 
-	//
 	if version == 2 {
 		if len(split) != 3 {
 			return -1, nil, nil, false, nil, false

cursortoken/filter.go

@@ -4,6 +4,10 @@ import (
 	"go.mongodb.org/mongo-driver/mongo"
 )
 
+type RawFilter interface {
+	FilterQuery() mongo.Pipeline
+}
+
 type Filter interface {
 	FilterQuery() mongo.Pipeline
 	Pagination() (string, SortDirection, string, SortDirection)

ginext/preContext.go

@@ -1,12 +1,15 @@
 package ginext
 
 import (
+	"bytes"
 	"context"
 	"fmt"
 	"github.com/gin-gonic/gin"
 	"github.com/gin-gonic/gin/binding"
+	"gogs.mikescher.com/BlackForestBytes/goext/dataext"
 	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
 	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	"io"
 	"runtime/debug"
 	"time"
 )
@@ -17,6 +20,7 @@ type PreContext struct {
 	uri     any
 	query   any
 	body    any
+	rawbody *[]byte
 	form    any
 	header  any
 	timeout *time.Duration
@@ -37,6 +41,11 @@ func (pctx *PreContext) Body(body any) *PreContext {
 	return pctx
 }
 
+func (pctx *PreContext) RawBody(rawbody *[]byte) *PreContext {
+	pctx.rawbody = rawbody
+	return pctx
+}
+
 func (pctx *PreContext) Form(form any) *PreContext {
 	pctx.form = form
 	return pctx
@@ -90,6 +99,23 @@ func (pctx PreContext) Start() (*AppContext, *gin.Context, *HTTPResponse) {
 		}
 	}
 
+	if pctx.rawbody != nil {
+		if brc, ok := pctx.ginCtx.Request.Body.(dataext.BufferedReadCloser); ok {
+			v, err := brc.BufferedAll()
+			if err != nil {
+				return nil, nil, langext.Ptr(Error(err))
+			}
+			*pctx.rawbody = v
+		} else {
+			buf := &bytes.Buffer{}
+			_, err := io.Copy(buf, pctx.ginCtx.Request.Body)
+			if err != nil {
+				return nil, nil, langext.Ptr(Error(err))
+			}
+			*pctx.rawbody = buf.Bytes()
+		}
+	}
+
 	if pctx.form != nil {
 		if pctx.ginCtx.ContentType() == "multipart/form-data" {
 			if err := pctx.ginCtx.ShouldBindWith(pctx.form, binding.Form); err != nil {

go.mod

@@ -7,26 +7,26 @@ require (
 	github.com/jmoiron/sqlx v1.3.5
 	github.com/rs/xid v1.5.0
 	github.com/rs/zerolog v1.31.0
-	go.mongodb.org/mongo-driver v1.12.1
+	go.mongodb.org/mongo-driver v1.13.0
 	golang.org/x/crypto v0.14.0
-	golang.org/x/sys v0.13.0
+	golang.org/x/sys v0.14.0
-	golang.org/x/term v0.13.0
+	golang.org/x/term v0.14.0
 )
 
 require (
 	github.com/bytedance/sonic v1.10.2 // indirect
 	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
-	github.com/chenzhuoyu/iasm v0.9.0 // indirect
+	github.com/chenzhuoyu/iasm v0.9.1 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/go-playground/validator/v10 v10.15.5 // indirect
+	github.com/go-playground/validator/v10 v10.16.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.17.2 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.6 // indirect
 	github.com/leodido/go-urn v1.2.4 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
@@ -40,10 +40,10 @@ require (
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a // indirect
-	golang.org/x/arch v0.5.0 // indirect
+	golang.org/x/arch v0.6.0 // indirect
 	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/sync v0.4.0 // indirect
+	golang.org/x/sync v0.5.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -8,6 +8,8 @@ github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d h1:77cEq6EriyTZ
 github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d/go.mod h1:8EPpVsBuRksnlj1mLy4AWzRNQYxauNi62uWcE3to6eA=
 github.com/chenzhuoyu/iasm v0.9.0 h1:9fhXjVzq5hUy2gkhhgHl95zG2cEAhw9OSGs8toWWAwo=
 github.com/chenzhuoyu/iasm v0.9.0/go.mod h1:Xjy2NpN3h7aUqeqM+woSuuvxmIe6+DDsiNLIrkAmYog=
+github.com/chenzhuoyu/iasm v0.9.1 h1:tUHQJXo3NhBqw6s33wkGn9SP3bvrWLdlVIJ3hQBL7P0=
+github.com/chenzhuoyu/iasm v0.9.1/go.mod h1:Xjy2NpN3h7aUqeqM+woSuuvxmIe6+DDsiNLIrkAmYog=
 github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -27,6 +29,8 @@ github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJn
 github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
 github.com/go-playground/validator/v10 v10.15.5 h1:LEBecTWb/1j5TNY1YYG2RcOUN3R7NLylN+x8TTueE24=
 github.com/go-playground/validator/v10 v10.15.5/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
+github.com/go-playground/validator/v10 v10.16.0 h1:x+plE831WK4vaKHO/jpgUGsvLKIqRRkz6M78GuJAfGE=
+github.com/go-playground/validator/v10 v10.16.0/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
 github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
@@ -54,6 +58,8 @@ github.com/klauspost/compress v1.17.2/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQs
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.2.5 h1:0E5MSMDEoAulmXNFquVs//DdoomxaoTY1kUhbc/qbZg=
 github.com/klauspost/cpuid/v2 v2.2.5/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
+github.com/klauspost/cpuid/v2 v2.2.6 h1:ndNyv040zDGIDh8thGkXYjnFtiN02M1PVVF+JE/48xc=
+github.com/klauspost/cpuid/v2 v2.2.6/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
 github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M=
 github.com/leodido/go-urn v1.2.4 h1:XlAE/cm/ms7TE/VMVoduSpNBoyc2dOxHs5MZSwAN63Q=
 github.com/leodido/go-urn v1.2.4/go.mod h1:7ZrI8mTSeBSHl/UaRyKQW1qZeMgak41ANeCNaVckg+4=
@@ -112,9 +118,13 @@ github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a/go.mod h1:ul22v+Nro/
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.mongodb.org/mongo-driver v1.12.1 h1:nLkghSU8fQNaK7oUmDhQFsnrtcoNy7Z6LVFKsEecqgE=
 go.mongodb.org/mongo-driver v1.12.1/go.mod h1:/rGBTebI3XYboVmgz+Wv3Bcbl3aD0QF9zl6kDDw18rQ=
+go.mongodb.org/mongo-driver v1.13.0 h1:67DgFFjYOCMWdtTEmKFpV3ffWlFnh+CYZ8ZS/tXWUfY=
+go.mongodb.org/mongo-driver v1.13.0/go.mod h1:/rGBTebI3XYboVmgz+Wv3Bcbl3aD0QF9zl6kDDw18rQ=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.5.0 h1:jpGode6huXQxcskEIpOCvrU+tzo81b6+oFLUYXWtH/Y=
 golang.org/x/arch v0.5.0/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
+golang.org/x/arch v0.6.0 h1:S0JTfE48HbRj80+4tbvZDYsJ3tGv6BUU3XxyZ7CirAc=
+golang.org/x/arch v0.6.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
@@ -135,6 +145,8 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.4.0 h1:zxkM55ReGkDlKSM+Fu41A+zmbZuaPVbGMzvvdUPznYQ=
 golang.org/x/sync v0.4.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
+golang.org/x/sync v0.5.0 h1:60k92dhOjHxJkrqnwsfl8KuaHbn/5dl0lUPUklKo3qE=
+golang.org/x/sync v0.5.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -148,10 +160,14 @@ golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
 golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.14.0 h1:Vz7Qs629MkJkGyHxUlRHizWJRG2j8fbQKjELVSNhy7Q=
+golang.org/x/sys v0.14.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.13.0 h1:bb+I9cTfFazGW51MZqBVmZy7+JEJMouUHTUSKVQLBek=
 golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U=
+golang.org/x/term v0.14.0 h1:LGK9IlZ8T9jvdy6cTdfKUCltatMFOehAQo9SRC46UQ8=
+golang.org/x/term v0.14.0/go.mod h1:TySc+nGkYR6qt8km8wUhuFRTVSMIX3XPR58y2lC8vww=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -160,6 +176,8 @@ golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
 golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=

goextVersion.go

@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.293"
+const GoextVersion = "0.0.303"
 
-const GoextVersionTimestamp = "2023-10-30T13:37:31+0100"
+const GoextVersionTimestamp = "2023-11-08T19:01:15+0100"

langext/baseAny.go

@@ -0,0 +1,178 @@
+package langext
+
+import (
+	"crypto/rand"
+	"errors"
+	"math"
+	"math/big"
+)
+
+type AnyBaseConverter struct {
+	base    uint64
+	charset []rune
+}
+
+func NewAnyBaseConverter(cs string) AnyBaseConverter {
+	rcs := []rune(cs)
+	return AnyBaseConverter{
+		base:    uint64(len(rcs)),
+		charset: rcs,
+	}
+}
+
+func (bc AnyBaseConverter) Rand(rlen int) string {
+	biBase := big.NewInt(int64(bc.base))
+
+	randMax := big.NewInt(math.MaxInt64)
+
+	r := ""
+
+	for i := 0; i < rlen; i++ {
+		v, err := rand.Int(rand.Reader, randMax)
+		if err != nil {
+			panic(err)
+		}
+
+		r += string(bc.charset[v.Mod(v, biBase).Int64()])
+	}
+
+	return r
+}
+
+func (bc AnyBaseConverter) EncodeUInt64(num uint64) string {
+	if num == 0 {
+		return "0"
+	}
+
+	b := ""
+
+	// loop as long the num is bigger than zero
+	for num > 0 {
+		r := num % bc.base
+
+		num -= r
+		num /= base62Base
+
+		b += string(bc.charset[int(r)])
+	}
+
+	return b
+}
+
+func (bc AnyBaseConverter) DecodeUInt64(str string) (uint64, error) {
+	if str == "" {
+		return 0, errors.New("empty string")
+	}
+
+	result := uint64(0)
+
+	for _, v := range str {
+		result *= base62Base
+
+		pos := ArrFirstIndex(bc.charset, v)
+		if pos == -1 {
+			return 0, errors.New("invalid character: " + string(v))
+		}
+
+		result += uint64(pos)
+	}
+
+	return result, nil
+}
+
+func (bc AnyBaseConverter) Encode(src []byte) string {
+	value := new(big.Int)
+	value.SetBytes(src)
+	return bc.EncodeBigInt(value)
+}
+
+func (bc AnyBaseConverter) EncodeBigInt(src *big.Int) string {
+	value := new(big.Int)
+	value.Set(src)
+
+	isneg := value.Sign() < 0
+
+	answer := ""
+
+	if isneg {
+		value.Neg(value)
+	}
+
+	biBase := big.NewInt(int64(bc.base))
+
+	rem := new(big.Int)
+
+	for value.Sign() > 0 {
+		value.QuoRem(value, biBase, rem)
+		answer = string(bc.charset[rem.Int64()]) + answer
+	}
+
+	if isneg {
+		return "-" + answer
+	} else {
+		return answer
+	}
+}
+
+func (bc AnyBaseConverter) Decode(src string) ([]byte, error) {
+	value, err := bc.DecodeToBigInt(src)
+	if err != nil {
+		return nil, err
+	}
+	return value.Bytes(), nil
+}
+
+func (bc AnyBaseConverter) DecodeToBigInt(_src string) (*big.Int, error) {
+	result := new(big.Int)
+	result.SetInt64(0)
+
+	src := []rune(_src)
+
+	if len(src) == 0 {
+		return nil, errors.New("string is empty")
+	}
+	if bc.base < 2 {
+		return nil, errors.New("not enough digits")
+	}
+
+	i := 0
+
+	sign := new(big.Int)
+	sign.SetInt64(1)
+	if src[i] == '+' {
+		i++
+	} else if src[i] == '-' {
+		i++
+		sign.SetInt64(-1)
+	}
+
+	if i >= len(src) {
+		return nil, errors.New("no digits in input")
+	}
+
+	biBase := big.NewInt(int64(bc.base))
+
+	oldResult := new(big.Int)
+
+	for ; i < len(src); i++ {
+		n := ArrFirstIndex(bc.charset, src[i])
+		if n < 0 {
+			return nil, errors.New("invalid characters in input")
+		}
+
+		oldResult.Set(result)
+
+		result.Mul(result, biBase)
+		result.Add(result, big.NewInt(int64(n)))
+
+		if result.Cmp(oldResult) < 0 {
+			return nil, errors.New("overflow")
+		}
+	}
+
+	if sign.Cmp(big.NewInt(0)) < 0 {
+		result.Neg(result)
+	}
+
+	return result, nil
+}

langext/baseAny_test.go

@@ -0,0 +1,80 @@
+package langext
+
+import (
+	"gogs.mikescher.com/BlackForestBytes/goext/tst"
+	"testing"
+)
+
+func _anyEncStr(bc AnyBaseConverter, v string) string {
+	vr := bc.Encode([]byte(v))
+	return vr
+}
+
+func _anyDecStr(bc AnyBaseConverter, v string) string {
+	vr, err := bc.Decode(v)
+	if err != nil {
+		panic(err)
+	}
+	return string(vr)
+}
+
+func TestAnyBase58DefaultEncoding(t *testing.T) {
+	tst.AssertEqual(t, _anyEncStr(NewAnyBaseConverter("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"), "Hello"), "9Ajdvzr")
+	tst.AssertEqual(t, _anyEncStr(NewAnyBaseConverter("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"), "If debugging is the process of removing software bugs, then programming must be the process of putting them in."), "48638SMcJuah5okqPx4kCVf5d8QAdgbdNf28g7ReY13prUENNbMyssjq5GjsrJHF5zeZfqs4uJMUJHr7VbrU4XBUZ2Fw9DVtqtn9N1eXucEWSEZahXV6w4ysGSWqGdpeYTJf1MdDzTg8vfcQViifJjZX")
+}
+
+func TestAnyBase58DefaultDecoding(t *testing.T) {
+	tst.AssertEqual(t, _anyDecStr(NewAnyBaseConverter("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"), "9Ajdvzr"), "Hello")
+	tst.AssertEqual(t, _anyDecStr(NewAnyBaseConverter("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"), "48638SMcJuah5okqPx4kCVf5d8QAdgbdNf28g7ReY13prUENNbMyssjq5GjsrJHF5zeZfqs4uJMUJHr7VbrU4XBUZ2Fw9DVtqtn9N1eXucEWSEZahXV6w4ysGSWqGdpeYTJf1MdDzTg8vfcQViifJjZX"), "If debugging is the process of removing software bugs, then programming must be the process of putting them in.")
+}
+
+func TestAnyBaseDecode(t *testing.T) {
+
+	const (
+		Binary  = "01"
+		Decimal = "0123456789"
+		Hex     = "0123456789ABCDEF"
+		DNA     = "ACGT"
+		Base32  = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"
+		Base58  = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
+		Base62  = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+		Base64  = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
+		Base256 = "🚀🪐☄🛰🌌🌑🌒🌓🌔🌕🌖🌗🌘🌍🌏🌎🐉☀💻🖥💾💿😂❤😍🤣😊🙏💕😭😘👍😅👏😁🔥🥰💔💖💙😢🤔😆🙄💪😉☺👌🤗💜😔😎😇🌹🤦🎉💞✌✨🤷😱😌🌸🙌😋💗💚😏💛🙂💓🤩😄😀🖤😃💯🙈👇🎶😒🤭❣😜💋👀😪😑💥🙋😞😩😡🤪👊🥳😥🤤👉💃😳✋😚😝😴🌟😬🙃🍀🌷😻😓⭐✅🥺🌈😈🤘💦✔😣🏃💐☹🎊💘😠☝😕🌺🎂🌻😐🖕💝🙊😹🗣💫💀👑🎵🤞😛🔴😤🌼😫⚽🤙☕🏆🤫👈😮🙆🍻🍃🐶💁😲🌿🧡🎁⚡🌞🎈❌✊👋😰🤨😶🤝🚶💰🍓💢🤟🙁🚨💨🤬✈🎀🍺🤓😙💟🌱😖👶🥴▶➡❓💎💸⬇😨🌚🦋😷🕺⚠🙅😟😵👎🤲🤠🤧📌🔵💅🧐🐾🍒😗🤑🌊🤯🐷☎💧😯💆👆🎤🙇🍑❄🌴💣🐸💌📍🥀🤢👅💡💩👐📸👻🤐🤮🎼🥵🚩🍎🍊👼💍📣🥂"
+	)
+
+	type TestDef struct {
+		FromCS  string
+		FromVal string
+		ToCS    string
+		ToVal   string
+	}
+
+	defs := []TestDef{
+		{Binary, "10100101011100000101010", Decimal, "5421098"},
+		{Decimal, "5421098", DNA, "CCAGGTGAAGGG"},
+		{Decimal, "5421098", DNA, "CCAGGTGAAGGG"},
+		{Decimal, "80085", Base256, "🪐💞🔵"},
+		{Hex, "48656C6C6C20576F526C5421", Base64, "SGVsbGwgV29SbFQh"},
+		{Base64, "SGVsbGw/gV29SbF+Qh", Base32, "CIMVWGY3B7QFO32SNRPZBB"},
+		{Base64, "SGVsbGw/gV29SbF+Qh", Base58, "2fUsGKQUcgQcwSqpvy6"},
+		{Base64, "SGVsbGw/gV29SbF+Qh", Base62, "V34nvybdQ3m3RHk9Sr"},
+	}
+
+	for _, def := range defs {
+
+		d1 := NewAnyBaseConverter(def.FromCS)
+		d2 := NewAnyBaseConverter(def.ToCS)
+
+		v1 := tst.Must(d1.Decode(def.FromVal))(t)
+		v2 := tst.Must(d2.Decode(def.ToVal))(t)
+
+		tst.AssertArrayEqual(t, v1, v2)
+
+		str2 := d2.Encode(v1)
+		tst.AssertEqual(t, str2, def.ToVal)
+
+		str1 := d1.Encode(v2)
+		tst.AssertEqual(t, str1, def.FromVal)
+
+	}
+}

pagination/filter.go

@@ -0,0 +1,29 @@
+package pagination
+
+import (
+	"go.mongodb.org/mongo-driver/mongo"
+	ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
+)
+
+type Filter interface {
+	FilterQuery() mongo.Pipeline
+	Pagination() (string, ct.SortDirection)
+}
+
+type dynamicFilter struct {
+	pipeline  mongo.Pipeline
+	sortField string
+	sortDir   ct.SortDirection
+}
+
+func (d dynamicFilter) FilterQuery() mongo.Pipeline {
+	return d.pipeline
+}
+
+func (d dynamicFilter) Pagination() (string, ct.SortDirection) {
+	return d.sortField, d.sortDir
+}
+
+func CreateFilter(pipeline mongo.Pipeline, sortField string, sortdir ct.SortDirection) Filter {
+	return dynamicFilter{pipeline: pipeline, sortField: sortField, sortDir: sortdir}
+}

pagination/pagination.go

@@ -0,0 +1,16 @@
+package pagination
+
+type Pagination struct {
+	Page             int `json:"page"`            // page (first page == 1)
+	Limit            int `json:"limit"`           // max-page-size
+	TotalPages       int `json:"totalPages"`      // total page-count
+	TotalItems       int `json:"totalItems"`      // total items-count
+	CurrentPageCount int `json:"currntPageCount"` // item-count in current page ( == len(data) )
+}
+
+func CalcPaginationTotalPages(totalItems int, limit int) int {
+	if totalItems == 0 {
+		return 0
+	}
+	return 1 + (totalItems-1)/limit
+}

tst/assertions.go

@@ -14,6 +14,20 @@ func AssertEqual[T comparable](t *testing.T, actual T, expected T) {
 	}
 }
 
+func AssertArrayEqual[T comparable](t *testing.T, actual []T, expected []T) {
+	t.Helper()
+	if len(actual) != len(expected) {
+		t.Errorf("values differ: Actual: '%v', Expected: '%v' (len %d <> %d)", actual, expected, len(actual), len(expected))
+		return
+	}
+	for i := 0; i < len(actual); i++ {
+		if actual[i] != expected[i] {
+			t.Errorf("values differ: Actual: '%v', Expected: '%v' (at index %d)", actual, expected, i)
+			return
+		}
+	}
+}
+
 func AssertNotEqual[T comparable](t *testing.T, actual T, expected T) {
 	t.Helper()
 	if actual == expected {

wmo/collection.go

@@ -44,6 +44,7 @@ type Coll[TData any] struct {
 	implDataTypeMap     map[reflect.Type]map[string]fullTypeRef                  // dynamic list of fields of TData implementations (only if TData is an interface)
 	customDecoder       *func(ctx context.Context, dec Decodable) (TData, error) // custom decoding function (useful if TData is an interface)
 	isInterfaceDataType bool                                                     // true if TData is an interface (not a struct)
+	unmarshalHooks      []func(d TData) TData                                    // called for every object after unmarshalling
 }
 
 func (c *Coll[TData]) Collection() *mongo.Collection {
@@ -54,14 +55,6 @@ func (c *Coll[TData]) Name() string {
 	return c.coll.Name()
 }
 
-func (c *Coll[TData]) WithDecodeFunc(cdf func(ctx context.Context, dec Decodable) (TData, error), example TData) *Coll[TData] {
-
-	c.EnsureInitializedReflection(example)
-
-	c.customDecoder = langext.Ptr(cdf)
-	return c
-}
-
 func (c *Coll[TData]) Indexes() mongo.IndexView {
 	return c.coll.Indexes()
 }
@@ -74,6 +67,20 @@ func (c *Coll[TData]) Drop(ctx context.Context) error {
 	return nil
 }
 
+func (c *Coll[TData]) WithDecodeFunc(cdf func(ctx context.Context, dec Decodable) (TData, error), example TData) *Coll[TData] {
+
+	c.EnsureInitializedReflection(example)
+
+	c.customDecoder = langext.Ptr(cdf)
+	return c
+}
+
+func (c *Coll[TData]) WithUnmarshalHook(fn func(d TData) TData) *Coll[TData] {
+	c.unmarshalHooks = append(c.unmarshalHooks, fn)
+
+	return c
+}
+
 func (c *Coll[TData]) createToken(fieldPrimary string, dirPrimary ct.SortDirection, fieldSecondary *string, dirSecondary *ct.SortDirection, lastEntity TData, pageSize *int) (ct.CursorToken, error) {
 
 	valuePrimary, err := c.getFieldValueAsTokenString(lastEntity, fieldPrimary)

wmo/decoding.go

@@ -12,6 +12,11 @@ func (c *Coll[TData]) decodeSingle(ctx context.Context, dec Decodable) (TData, e
 		if err != nil {
 			return *new(TData), exerr.Wrap(err, "failed to decode single entity with custom-decoder").Type("decoder", *c.customDecoder).Build()
 		}
+
+		for _, hook := range c.unmarshalHooks {
+			res = hook(res)
+		}
+
 		return res, nil
 
 	} else {
@@ -23,6 +28,10 @@ func (c *Coll[TData]) decodeSingle(ctx context.Context, dec Decodable) (TData, e
 			return *new(TData), exerr.Wrap(err, "failed to decode single entity").Type("target-type", res).Build()
 		}
 
+		for _, hook := range c.unmarshalHooks {
+			res = hook(res)
+		}
+
 		return res, nil
 
 	}
@@ -38,6 +47,9 @@ func (c *Coll[TData]) decodeAll(ctx context.Context, cursor Cursorable) ([]TData
 			if err != nil {
 				return nil, exerr.Wrap(err, "failed to decode entity with custom-decoder").Type("decoder", *c.customDecoder).Build()
 			}
+			for _, hook := range c.unmarshalHooks {
+				entry = hook(entry)
+			}
 			res = append(res, entry)
 		}
 
@@ -52,6 +64,12 @@ func (c *Coll[TData]) decodeAll(ctx context.Context, cursor Cursorable) ([]TData
 			return nil, exerr.Wrap(err, "failed to batch-decode entity").Type("target-type", res).Build()
 		}
 
+		for i := 0; i < len(res); i++ {
+			for _, hook := range c.unmarshalHooks {
+				res[i] = hook(res[i])
+			}
+		}
+
 		return res, nil
 
 	}

wmo/queryList.go

@@ -91,11 +91,11 @@ func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int,
 	return entities, nextToken, nil
 }
 
-type countRes struct {
+func (c *Coll[TData]) Count(ctx context.Context, filter ct.RawFilter) (int64, error) {
-	Count int64 `bson:"c"`
+	type countRes struct {
-}
+		Count int64 `bson:"c"`
+	}
 
-func (c *Coll[TData]) Count(ctx context.Context, filter ct.Filter) (int64, error) {
 	pipeline := filter.FilterQuery()
 
 	pipeline = append(pipeline, bson.D{{Key: "$count", Value: "c"}})

wmo/queryPaginate.go

@@ -0,0 +1,86 @@
+package wmo
+
+import (
+	"context"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
+	"gogs.mikescher.com/BlackForestBytes/goext/exerr"
+	"gogs.mikescher.com/BlackForestBytes/goext/langext"
+	pag "gogs.mikescher.com/BlackForestBytes/goext/pagination"
+)
+
+func (c *Coll[TData]) Paginate(ctx context.Context, filter pag.Filter, page int, limit *int) ([]TData, pag.Pagination, error) {
+	type totalCountResult struct {
+		Count int `bson:"count"`
+	}
+
+	if page < 0 {
+		page = 1
+	}
+
+	pipelineSort := mongo.Pipeline{}
+	pipelineFilter := mongo.Pipeline{}
+	pf1 := "_id"
+	pd1 := ct.SortASC
+
+	if filter != nil {
+		pipelineFilter = filter.FilterQuery()
+		pf1, pd1 = filter.Pagination()
+	}
+
+	if pd1 == ct.SortASC {
+		pipelineSort = append(pipelineSort, bson.D{{Key: "$sort", Value: bson.D{{Key: pf1, Value: +1}}}})
+	} else if pd1 == ct.SortDESC {
+		pipelineSort = append(pipelineSort, bson.D{{Key: "$sort", Value: bson.D{{Key: pf1, Value: -1}}}})
+	}
+
+	pipelinePaginate := mongo.Pipeline{}
+	if limit != nil {
+		pipelinePaginate = append(pipelinePaginate, bson.D{{Key: "$skip", Value: *limit * (page - 1)}})
+		pipelinePaginate = append(pipelinePaginate, bson.D{{Key: "$limit", Value: *limit}})
+	} else {
+		page = 1
+	}
+
+	pipelineCount := mongo.Pipeline{}
+	pipelinePaginate = append(pipelinePaginate, bson.D{{Key: "$count", Value: "count"}})
+
+	pipelineList := langext.ArrConcat(mongo.Pipeline{}, pipelineFilter, pipelinePaginate)
+	pipelineTotalCount := langext.ArrConcat(mongo.Pipeline{}, pipelineFilter, pipelineCount)
+
+	cursorList, err := c.coll.Aggregate(ctx, pipelineList)
+	if err != nil {
+		return nil, pag.Pagination{}, exerr.Wrap(err, "mongo-aggregation failed").Any("pipeline", pipelineList).Str("collection", c.Name()).Build()
+	}
+
+	entities, err := c.decodeAll(ctx, cursorList)
+	if err != nil {
+		return nil, pag.Pagination{}, exerr.Wrap(err, "failed to all-decode entities").Build()
+	}
+
+	cursorTotalCount, err := c.coll.Aggregate(ctx, pipelineTotalCount)
+	if err != nil {
+		return nil, pag.Pagination{}, exerr.Wrap(err, "mongo-aggregation failed").Any("pipeline", pipelineTotalCount).Str("collection", c.Name()).Build()
+	}
+
+	var tcRes totalCountResult
+	if cursorTotalCount.Next(ctx) {
+		err = cursorTotalCount.Decode(&tcRes)
+		if err != nil {
+			return nil, pag.Pagination{}, exerr.Wrap(err, "failed to decode mongo-aggregation $count result").Any("pipeline", pipelineTotalCount).Str("collection", c.Name()).Build()
+		}
+	} else {
+		tcRes.Count = 0 // no entries in DB
+	}
+
+	paginationObj := pag.Pagination{
+		Page:             page,
+		Limit:            langext.Coalesce(limit, tcRes.Count),
+		TotalPages:       pag.CalcPaginationTotalPages(tcRes.Count, langext.Coalesce(limit, tcRes.Count)),
+		TotalItems:       tcRes.Count,
+		CurrentPageCount: len(entities),
+	}
+
+	return entities, paginationObj, nil
+}