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dictionary.go
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dictionary.go
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package qordle
import (
"bufio"
"embed"
"errors"
"fmt"
"io"
"io/fs"
"path/filepath"
"sort"
"strings"
"github.com/urfave/cli/v2"
)
type Dictionary []string
const data = "data"
//go:embed data
var dataFs embed.FS
func (dict Dictionary) union(other Dictionary) Dictionary {
if dict == nil {
res := make(Dictionary, len(other))
copy(res, other)
return res
}
words := map[string]struct{}{}
for _, d := range []Dictionary{dict, other} {
for i := range d {
words[d[i]] = struct{}{}
}
}
i, dictionary := 0, make(Dictionary, len(words))
for k := range words {
dictionary[i] = k
i++
}
return dictionary
}
func read(r io.Reader) (Dictionary, error) {
if r == nil {
return nil, errors.New("invalid reader")
}
var res []string
scanner := bufio.NewScanner(r)
for scanner.Scan() {
res = append(res, scanner.Text())
}
if err := scanner.Err(); err != nil {
return nil, err
}
return res, nil
}
func Read(name string) (Dictionary, error) {
fp, err := dataFs.Open(fmt.Sprintf("%s/%s.txt", data, name))
if err != nil {
if errors.Is(err, fs.ErrNotExist) {
return nil, fmt.Errorf("invalid wordlist `%s`", name)
}
return nil, err
}
defer fp.Close()
return read(fp)
}
func wordlistFlags() []cli.Flag {
return []cli.Flag{
&cli.StringSliceFlag{
Name: "wordlist",
Aliases: []string{"w"},
Usage: "use the specified embedded word list",
},
// &cli.StringSliceFlag{
// Name: "Wordlist",
// Aliases: []string{"W"},
// Usage: "use the specified external word list",
// },
}
}
func wordlists(c *cli.Context, wordlists ...string) (Dictionary, error) {
var readers []func() (Dictionary, error)
switch {
// case c.IsSet("Wordlist"):
// for _, wordlist := range c.StringSlice("Wordlist") {
// w := wordlist
// readers = append(readers, func() (Dictionary, error) {
// fp, err := os.Open(w)
// if err != nil {
// return nil, err
// }
// defer fp.Close()
// return read(fp)
// })
// }
case c.IsSet("wordlist"):
wordlists = c.StringSlice("wordlist")
fallthrough
default:
for _, wordlist := range wordlists {
w := wordlist
readers = append(readers, func() (Dictionary, error) {
return Read(w)
})
}
}
var words Dictionary
for _, reader := range readers {
res, err := reader()
if err != nil {
return nil, err
}
words = words.union(res)
}
return words, nil
}
func CommandWordlists() *cli.Command {
return &cli.Command{
Name: "wordlists",
Category: "wordle",
Usage: "List all available wordlists",
Action: func(c *cli.Context) error {
var lists []string
if err := fs.WalkDir(dataFs, data, func(_ string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
if d.IsDir() {
return nil
}
lists = append(lists, strings.TrimSuffix(d.Name(), filepath.Ext(d.Name())))
return nil
}); err != nil {
return err
}
sort.Strings(lists)
return Runtime(c).Encoder.Encode(lists)
},
}
}