Match: added TrimPrefix

- fixed `Action.Prefix`
- fixed `actiondirectories`

action.go

@@ -12,6 +12,7 @@ import (
 	"github.com/rsteube/carapace/internal/cache"
 	"github.com/rsteube/carapace/internal/common"
 	pkgcache "github.com/rsteube/carapace/pkg/cache"
+	"github.com/rsteube/carapace/pkg/match"
 	"github.com/rsteube/carapace/pkg/style"
 	pkgtraverse "github.com/rsteube/carapace/pkg/traverse"
 )
@@ -229,9 +230,9 @@ func (a Action) NoSpace(suffixes ...rune) Action {
 func (a Action) Prefix(prefix string) Action {
 	return ActionCallback(func(c Context) Action {
 		switch {
-		case strings.HasPrefix(c.Value, prefix):
-			c.Value = strings.TrimPrefix(c.Value, prefix)
-		case strings.HasPrefix(prefix, c.Value):
+		case match.HasPrefix(c.Value, prefix):
+			c.Value = match.TrimPrefix(c.Value, prefix)
+		case match.HasPrefix(prefix, c.Value):
 			c.Value = ""
 		default:
 			return ActionValues()

defaultActions.go

@@ -13,6 +13,7 @@ import (
 	"github.com/rsteube/carapace/internal/config"
 	"github.com/rsteube/carapace/internal/export"
 	"github.com/rsteube/carapace/internal/man"
+	"github.com/rsteube/carapace/pkg/match"
 	"github.com/rsteube/carapace/pkg/style"
 	"github.com/rsteube/carapace/third_party/github.com/acarl005/stripansi"
 	"github.com/spf13/cobra"
@@ -441,7 +442,7 @@ func actionDirectoryExecutables(dir string, prefix string, manDescriptions map[s
 		if files, err := os.ReadDir(dir); err == nil {
 			vals := make([]string, 0)
 			for _, f := range files {
-				if strings.HasPrefix(f.Name(), prefix) {
+				if match.HasPrefix(f.Name(), prefix) {
 					if info, err := f.Info(); err == nil && !f.IsDir() && isExecAny(info.Mode()) {
 						vals = append(vals, f.Name(), manDescriptions[f.Name()], style.ForPath(dir+"/"+f.Name(), c))
 					}

pkg/match/match.go

@@ -44,3 +44,10 @@ func Equal(s, t string) bool {
 func HasPrefix(s, prefix string) bool {
 	return match.HasPrefix(s, prefix)
 }
+
+func TrimPrefix(s, prefix string) string {
+	if HasPrefix(s, prefix) {
+		return s[len(prefix):]
+	}
+	return s
+}