words/internal/gen.go
2025-06-30 17:23:29 +02:00

100 lines
1.6 KiB
Go

//go:build ignore
package main
import (
"bufio"
"fmt"
"log"
"os"
"regexp"
"strings"
"text/template"
"time"
)
const Directory = "/usr/share/dict"
var wordsTemplate = template.Must(template.New("").Parse(`// Code generated by go generate; DO NOT EDIT.
// This file was generated by robots at
// {{ .Timestamp }}
// using data from
// {{ .Path }}
package dictionary
var {{ .VarName }} = []string{
{{- range .Words }}
{{ printf "%q" . }},
{{- end }}
}
`))
type templateData struct {
Timestamp time.Time
Path string
Words []string
VarName string
}
func generateFile(name string) {
fmt.Println("generating file for dictionary " + name)
lowerName := strings.ToLower(name)
words := []string{}
Path := Directory + "/" + lowerName
file, err := os.Open(Path)
if err != nil {
die(err)
}
defer file.Close()
scanner := bufio.NewScanner(file)
for scanner.Scan() {
w := strings.TrimSpace(scanner.Text())
if regexp.MustCompile(`^[a-zA-Z0-9]*$`).MatchString(w) {
words = append(words, w)
}
}
if err := scanner.Err(); err != nil {
log.Fatal(err)
}
f, err := os.Create("internal/dictionary/" + lowerName + ".go")
die(err)
defer f.Close()
wordsTemplate.Execute(f, templateData{
Timestamp: time.Now(),
Path: Path,
Words: words,
VarName: strings.Title(name),
})
}
func main() {
fmt.Println("Generate")
entries, err := os.ReadDir(Directory)
if err != nil {
die(err)
}
for _, e := range entries {
if !strings.Contains(e.Name(), ".") {
generateFile(e.Name())
}
}
// generateFile("words")
}
func die(err error) {
if err != nil {
log.Fatal(err)
}
}