commit f5e7a6b694fe1d92a1cf669fe820c7218b4a7563
Author: Nhân <hi@imnhan.com>
Date:   Thu Jul 20 17:22:52 2023 +0700

    rename UserFileErr to UserErr

diff --git a/errs/errs.go b/errs/errs.go
index 6ad5572..2614757 100644
--- a/errs/errs.go
+++ b/errs/errs.go
@@ -7,7 +7,7 @@
 
 // Represents a user input error, which in webmaker2000's case is almost
 // always some malformed file.
-type UserFileErr struct {
+type UserErr struct {
 	File string
 	Msg  string
 
@@ -21,14 +21,14 @@ type UserFileErr struct {
 	Field string
 }
 
-func (e *UserFileErr) Error() string {
+func (e *UserErr) Error() string {
 	return fmt.Sprintf(
 		"UserFileErr: %s - %d:%d:%s %s",
 		e.File, e.Line, e.Column, e.Field, e.Msg,
 	)
 }
 
-func (e *UserFileErr) Html() template.HTML {
+func (e *UserErr) Html() template.HTML {
 	content := fmt.Sprintf("In file <b>%s</b>", e.File)
 	if e.Line != 0 {
 		content += fmt.Sprintf(", line %d", e.Line)
diff --git a/livereload/error.go b/livereload/error.go
index ac929ec..5750618 100644
--- a/livereload/error.go
+++ b/livereload/error.go
@@ -22,7 +22,7 @@ type errTmplInput struct {
 
 func serveError(w http.ResponseWriter, r *http.Request, e error) {
 	var buf bytes.Buffer
-	var uerr *errs.UserFileErr
+	var uerr *errs.UserErr
 	ok := errors.As(e, &uerr)
 
 	var tmplInput errTmplInput
diff --git a/main.go b/main.go
index 95f00f1..be06e87 100644
--- a/main.go
+++ b/main.go
@@ -211,7 +211,7 @@ func regenerate(fsys writablefs.FS) (site *SiteMetadata, err error) {
 	for _, link := range site.NavbarLinks {
 		a, ok := articles[link]
 		if !ok {
-			return nil, &errs.UserFileErr{
+			return nil, &errs.UserErr{
 				File:  SiteFileName,
 				Field: "NavbarLinks",
 				Msg:   fmt.Sprintf(`"%s" does not exist`, link),
diff --git a/metadata.go b/metadata.go
index 2952388..0b5a3f4 100644
--- a/metadata.go
+++ b/metadata.go
@@ -65,7 +65,7 @@ func ReadSiteMetadata(fsys writablefs.FS) (*SiteMetadata, error) {
 }
 
 // Similar API to json.Unmarshal but supports neither struct tags nor nesting.
-func UnmarshalMetadata(data []byte, dest any) *errs.UserFileErr {
+func UnmarshalMetadata(data []byte, dest any) *errs.UserErr {
 	m := metaTextToMap(data)
 
 	s := reflect.ValueOf(dest).Elem()
@@ -82,7 +82,7 @@ func UnmarshalMetadata(data []byte, dest any) *errs.UserFileErr {
 			case "int":
 				intVal, err := strconv.Atoi(val)
 				if err != nil {
-					return &errs.UserFileErr{
+					return &errs.UserErr{
 						Field: fieldName,
 						Msg:   fmt.Sprintf(`invalid int: "%s"`, err),
 					}
@@ -91,7 +91,7 @@ func UnmarshalMetadata(data []byte, dest any) *errs.UserFileErr {
 
 			case "bool":
 				if val != "true" && val != "false" {
-					return &errs.UserFileErr{
+					return &errs.UserErr{
 						Field: fieldName,
 						Msg: fmt.Sprintf(
 							`invalid boolean: expected true/false, got "%s"`,
@@ -105,7 +105,7 @@ func UnmarshalMetadata(data []byte, dest any) *errs.UserFileErr {
 				tVal, err := time.ParseInLocation("2006-01-02", val, time.Local)
 				tVal = tVal.Local()
 				if err != nil {
-					return &errs.UserFileErr{
+					return &errs.UserErr{
 						Field: fieldName,
 						Msg: fmt.Sprintf(
 							`invalid date: expected YYYY-MM-DD, got "%s"`, val,