Lazy load locale data and update CLDR to V48 (#14)

- Bump Go version to `1.24.0`.
- Updated Unicode CLDR locale data to version `48` for broader language coverage and corrected region aliases.
- Added lazy loading of locale tables, reducing initial memory footprint and improving startup performance.

Author: edmocosta

CHANGELOG.md

@@ -0,0 +1,3 @@
+## 0.2.0
+ - Updated Unicode CLDR locale data to v48 for broader language coverage and corrected region aliases.
+ - Added lazy loading of locale tables, reducing initial memory footprint and improving startup performance.

NOTICE.txt

@@ -1,6 +1,6 @@
 module github.com/elastic/lunes/benchmarks
 
-go 1.21.0
+go 1.24.0
 
 require (
 	github.com/elastic/lunes v0.0.0-00010101000000-000000000000

benchmarks/go.mod

@@ -124,7 +124,7 @@ var dayPeriodsStdMap = map[string]string{
 var localesData = map[string]*cldrLocaleData{}
 
 func main() {
-	cldrVersion := flag.Int("cldr", 45, "CLDR version")
+	cldrVersion := flag.Int("cldr", 48, "CLDR version")
 	cldrZipFilePath := flag.String("file", "", "CLDR core.zip path")
 	flag.Parse()
 

generator.go

@@ -1,21 +1,20 @@
 module github.com/elastic/lunes
 
-go 1.21.0
+go 1.24.0
 
 require (
 	github.com/elastic/go-licenser v0.4.2
 	github.com/magefile/mage v1.15.0
-	go.elastic.co/go-licence-detector v0.6.1
-	golang.org/x/tools v0.23.0
+	go.elastic.co/go-licence-detector v0.10.0
+	golang.org/x/tools v0.38.0
 )
 
 require (
-	github.com/cyphar/filepath-securejoin v0.2.5 // indirect
-	github.com/gobuffalo/here v0.6.0 // indirect
-	github.com/google/licenseclassifier v0.0.0-20200402202327-879cb1424de0 // indirect
-	github.com/karrick/godirwalk v1.15.6 // indirect
-	github.com/markbates/pkger v0.17.0 // indirect
-	github.com/sergi/go-diff v1.1.0 // indirect
-	golang.org/x/mod v0.19.0 // indirect
-	golang.org/x/sync v0.7.0 // indirect
+	github.com/cyphar/filepath-securejoin v0.4.1 // indirect
+	github.com/google/licenseclassifier v0.0.0-20250213175939-b5d1a3369749 // indirect
+	github.com/sergi/go-diff v1.4.0 // indirect
+	golang.org/x/mod v0.29.0 // indirect
+	golang.org/x/sync v0.18.0 // indirect
+	golang.org/x/sys v0.37.0 // indirect
+	golang.org/x/telemetry v0.0.0-20251008203120-078029d740a8 // indirect
 )

go.mod

@@ -1,90 +1,47 @@
-github.com/cyphar/filepath-securejoin v0.2.5 h1:6iR5tXJ/e6tJZzzdMc1km3Sa7RRIVBKAK32O2s7AYfo=
-github.com/cyphar/filepath-securejoin v0.2.5/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
+github.com/cyphar/filepath-securejoin v0.4.1 h1:JyxxyPEaktOD+GAnqIqTf9A8tHyAG22rowi7HkoSU1s=
+github.com/cyphar/filepath-securejoin v0.4.1/go.mod h1:Sdj7gXlvMcPZsbhwhQ33GguGLDGQL7h7bg04C/+u9jI=
 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=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/elastic/go-licenser v0.4.2 h1:bPbGm8bUd8rxzSswFOqvQh1dAkKGkgAmrPxbUi+Y9+A=
 github.com/elastic/go-licenser v0.4.2/go.mod h1:W8eH6FaZDR8fQGm+7FnVa7MxI1b/6dAqxz+zPB8nm5c=
-github.com/gobuffalo/here v0.6.0 h1:hYrd0a6gDmWxBM4TnrGw8mQg24iSVoIkHEk7FodQcBI=
-github.com/gobuffalo/here v0.6.0/go.mod h1:wAG085dHOYqUpf+Ap+WOdrPTp5IYcDAs/x7PLa8Y5fM=
-github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
-github.com/google/licenseclassifier v0.0.0-20200402202327-879cb1424de0 h1:OggOMmdI0JLwg1FkOKH9S7fVHF0oEm8PX6S8kAdpOps=
-github.com/google/licenseclassifier v0.0.0-20200402202327-879cb1424de0/go.mod h1:qsqn2hxC+vURpyBRygGUuinTO42MFRLcsmQ/P8v94+M=
-github.com/karrick/godirwalk v1.15.6 h1:Yf2mmR8TJy+8Fa0SuQVto5SYap6IF7lNVX4Jdl8G1qA=
-github.com/karrick/godirwalk v1.15.6/go.mod h1:j4mkqPuvaLI8mp1DroR3P6ad7cyYd4c1qeJ3RV7ULlk=
+github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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+github.com/google/licenseclassifier v0.0.0-20250213175939-b5d1a3369749/go.mod h1:jkYIPv59uiw+1MxTWlqQEKebsUDV1DCXQtBBn5lVzf4=
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 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/magefile/mage v1.15.0 h1:BvGheCMAsG3bWUDbZ8AyXXpCNwU9u5CB6sM+HNb9HYg=
 github.com/magefile/mage v1.15.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
-github.com/markbates/pkger v0.17.0 h1:RFfyBPufP2V6cddUyyEVSHBpaAnM1WzaMNyqomeT+iY=
-github.com/markbates/pkger v0.17.0/go.mod h1:0JoVlrol20BSywW79rN3kdFFsE5xYM+rSCQDXbLhiuI=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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-github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-go.elastic.co/go-licence-detector v0.6.1 h1:T2PFHYdow+9mAjj6K5ehn5anTxtsURfom2P4S6PgMzg=
-go.elastic.co/go-licence-detector v0.6.1/go.mod h1:qQ1clBRS2f0Ee5ie+y2LLYnyhSNJNm0Ha6d7SoYVtM4=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
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-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
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 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

go.sum

@@ -103,7 +103,7 @@ func (e *ErrUnsupportedLocale) Error() string {
 // the default CLDR gregorian calendars data of the specified language.
 // If the language is unknown and no default data is found, it returns ErrUnsupportedLocale.
 func NewDefaultLocale(lang string) (Locale, error) {
-	table, ok := tables[lang]
+	table, ok := getTable(lang)
 	if !ok {
 		return nil, &ErrUnsupportedLocale{lang}
 	}

locale.go

@@ -87,17 +87,19 @@ func allLocalesTests(valuePattern string, replacements []replacement) *[]ParseTe
 
 func genAllLocalesTests(valuePattern string, replacements []replacement, formatter func(v string) string) *[]ParseTestLocale {
 	var tests []ParseTestLocale
-	for lang := range tables {
+	for lang := range tableLoaders {
 		test := ParseTestLocale{lang: lang}
-		locale := genericLocale{lang: lang, table: tables[lang]}
+		table, _ := getTable(lang)
+		locale := genericLocale{lang: lang, table: table}
 
 		args := make([]any, 0, len(replacements)/2)
 		var unsupportedElem string
 		for _, repl := range replacements {
 			fieldVal := getLocaleFieldValue(&locale, repl.field)
 			if len(fieldVal) == 0 {
 				// fallback to english so it replaces the placeholders with any value
-				fieldVal = tables["en"][repl.field]
+				enTable, _ := getTable("en")
+				fieldVal = enTable[repl.field]
 				if unsupportedElem == "" {
 					switch repl.field {
 					case shortDayNamesField, longDayNamesField: