Natural sorting implemented in Go.
The package expects valid UTF-8-encoded strings. If you're accepting user input, check with utf8.Valid or utf8.ValidString first. The strings may contain arbitrarily large numbers.
A simple slice of strings:
package main
import (
"fmt"
"github.com/climech/naturalsort"
)
func main() {
items := []string{"Chapter 1", "Chapter 11", "Chapter 2"}
naturalsort.Sort(items)
for _, item := range items {
fmt.Println(item)
}
}Output:
Chapter 1
Chapter 2
Chapter 11
A slice of structs sorted by field:
package main
import (
"fmt"
"sort"
"github.com/climech/naturalsort"
)
type Movie struct {
ID uint
Title string
}
func main() {
movies := []*Movie{
{24, "Die Hard 2"},
{17, "Die Hard 1"},
{42, "Die Hard 10"},
}
sort.SliceStable(movies, func(i, j int) bool {
return naturalsort.Compare(movies[i].Title, movies[j].Title)
})
for _, movie := range movies {
fmt.Printf("%s (ID: %d)\n", movie.Title, movie.ID)
}
}Output:
Die Hard 1 (ID: 17)
Die Hard 2 (ID: 24)
Die Hard 10 (ID: 42)
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