all: replace deprecated strings.Title

bind/genjava.go

@@ -15,6 +15,8 @@ import (
 	"strings"
 
 	"golang.org/x/mobile/internal/importers/java"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 )
 
 // TODO(crawshaw): disallow basic android java type names in exported symbols.
@@ -1038,7 +1040,7 @@ func JavaClassName(pkg *types.Package) string {
 	if pkg == nil {
 		return "Universe"
 	}
-	return javaNameReplacer(strings.Title(pkg.Name()))
+	return javaNameReplacer(cases.Title(language.English).String(pkg.Name()))
 }
 
 func (g *JavaGen) genConst(o *types.Const) {

bind/genobjc.go

@@ -12,6 +12,8 @@ import (
 	"strings"
 
 	"golang.org/x/mobile/internal/importers/objc"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 )
 
 // TODO(hyangah): handle method name conflicts.
@@ -101,7 +103,7 @@ func (g *ObjcGen) namePrefixOf(pkg *types.Package) string {
 		return "Universe"
 	}
 	p := g.Prefix
-	return p + strings.Title(pkg.Name())
+	return p + cases.Title(language.English).String(pkg.Name())
 }
 
 func (g *ObjcGen) GenGoH() error {

cmd/gobind/gen.go

@@ -21,6 +21,8 @@ import (
 	"golang.org/x/mobile/internal/importers"
 	"golang.org/x/mobile/internal/importers/java"
 	"golang.org/x/mobile/internal/importers/objc"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 	"golang.org/x/tools/go/packages"
 )
 
@@ -142,12 +144,12 @@ func genPkg(lang string, p *types.Package, astFiles []*ast.File, allPkg []*types
 		processErr(g.GenGoH())
 		io.Copy(w, &buf)
 		closer()
-		hname := strings.Title(fname[:len(fname)-2]) + ".objc.h"
+		hname := cases.Title(language.English).String(fname[:len(fname)-2]) + ".objc.h"
 		w, closer = writer(filepath.Join("src", "gobind", hname))
 		processErr(g.GenH())
 		io.Copy(w, &buf)
 		closer()
-		mname := strings.Title(fname[:len(fname)-2]) + "_darwin.m"
+		mname := cases.Title(language.English).String(fname[:len(fname)-2]) + "_darwin.m"
 		w, closer = writer(filepath.Join("src", "gobind", mname))
 		conf.Writer = w
 		processErr(g.GenM())

cmd/gomobile/bind_iosapp.go

@@ -18,6 +18,8 @@ import (
 	"time"
 
 	"golang.org/x/sync/errgroup"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 	"golang.org/x/tools/go/packages"
 )
 
@@ -27,15 +29,15 @@ func goAppleBind(gobind string, pkgs []*packages.Package, targets []targetInfo)
 
 	if buildO == "" {
 		name = pkgs[0].Name
-		title = strings.Title(name)
+		title = cases.Title(language.English).String(name)
 		buildO = title + ".xcframework"
 	} else {
 		if !strings.HasSuffix(buildO, ".xcframework") {
 			return fmt.Errorf("static framework name %q missing .xcframework suffix", buildO)
 		}
 		base := filepath.Base(buildO)
 		name = base[:len(base)-len(".xcframework")]
-		title = strings.Title(name)
+		title = cases.Title(language.English).String(name)
 	}
 
 	if err := removeAll(buildO); err != nil {
@@ -185,7 +187,7 @@ func goAppleBind(gobind string, pkgs []*packages.Package, targets []targetInfo)
 
 		fileBases := make([]string, len(pkgs)+1)
 		for i, pkg := range pkgs {
-			fileBases[i] = bindPrefix + strings.Title(pkg.Name)
+			fileBases[i] = bindPrefix + cases.Title(language.English).String(pkg.Name)
 		}
 		fileBases[len(fileBases)-1] = "Universe"
 

cmd/gomobile/build_androidapp.go

@@ -20,6 +20,8 @@ import (
 	"strings"
 
 	"golang.org/x/mobile/internal/binres"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 	"golang.org/x/tools/go/packages"
 )
 
@@ -47,7 +49,7 @@ func goAndroidBuild(pkg *packages.Package, targets []targetInfo) (map[string]boo
 		err := manifestTmpl.Execute(buf, manifestTmplData{
 			// TODO(crawshaw): a better package path.
 			JavaPkgPath: "org.golang.todo." + libName,
-			Name:        strings.Title(appName),
+			Name:        cases.Title(language.English).String(appName),
 			LibName:     libName,
 		})
 		if err != nil {

cmd/gomobile/build_apple.go

@@ -16,6 +16,8 @@ import (
 	"strings"
 	"text/template"
 
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 	"golang.org/x/tools/go/packages"
 )
 
@@ -33,7 +35,7 @@ func goAppleBuild(pkg *packages.Package, bundleID string, targets []targetInfo)
 	infoplist := new(bytes.Buffer)
 	if err := infoplistTmpl.Execute(infoplist, infoplistTmplData{
 		BundleID: bundleID + "." + productName,
-		Name:     strings.Title(path.Base(pkg.PkgPath)),
+		Name:     cases.Title(language.English).String(path.Base(pkg.PkgPath)),
 	}); err != nil {
 		return nil, err
 	}

go.mod

@@ -23,4 +23,7 @@ require (
 	golang.org/x/tools v0.33.0
 )
 
-require golang.org/x/sys v0.33.0 // indirect
+require (
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/text v0.25.0 // indirect
+)

go.sum

@@ -10,5 +10,7 @@ golang.org/x/sync v0.14.0 h1:woo0S4Yywslg6hp4eUFjTVOyKt0RookbpAHG4c1HmhQ=
 golang.org/x/sync v0.14.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
+golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
 golang.org/x/tools v0.33.0 h1:4qz2S3zmRxbGIhDIAgjxvFutSvH5EfnsYrRBj0UI0bc=
 golang.org/x/tools v0.33.0/go.mod h1:CIJMaWEY88juyUfo7UbgPqbC8rU2OqfAV1h2Qp0oMYI=