put regex outside of function

internal/dictionary/american-english.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:22.14436886 +0200 CEST m=+0.547300981
+// 2025-07-01 11:44:04.826380263 +0200 CEST m=+0.969565882
 // using data from
 // /usr/share/dict/american-english
 package dictionary

internal/dictionary/brazilian.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:24.539328383 +0200 CEST m=+2.942260509
+// 2025-07-01 11:44:07.94160695 +0200 CEST m=+4.084792508
 // using data from
 // /usr/share/dict/brazilian
 package dictionary

internal/dictionary/british-english.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:28.139620211 +0200 CEST m=+6.542552413
+// 2025-07-01 11:44:10.744118762 +0200 CEST m=+6.887304314
 // using data from
 // /usr/share/dict/british-english
 package dictionary

internal/dictionary/cracklib-small.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:29.019372165 +0200 CEST m=+7.422304288
+// 2025-07-01 11:44:11.753049235 +0200 CEST m=+7.896234788
 // using data from
 // /usr/share/dict/cracklib-small
 package dictionary

internal/dictionary/french.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:32.589413723 +0200 CEST m=+10.992345857
+// 2025-07-01 11:44:14.13361519 +0200 CEST m=+10.276800741
 // using data from
 // /usr/share/dict/french
 package dictionary

internal/dictionary/italian.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:35.263793289 +0200 CEST m=+13.666725431
+// 2025-07-01 11:44:17.064637498 +0200 CEST m=+13.207823069
 // using data from
 // /usr/share/dict/italian
 package dictionary

internal/dictionary/ngerman.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:38.695788298 +0200 CEST m=+17.098720431
+// 2025-07-01 11:44:20.071127852 +0200 CEST m=+16.214313406
 // using data from
 // /usr/share/dict/ngerman
 package dictionary

internal/dictionary/ogerman.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:43.377121796 +0200 CEST m=+21.780053952
+// 2025-07-01 11:44:24.817791685 +0200 CEST m=+20.960977236
 // using data from
 // /usr/share/dict/ogerman
 package dictionary

internal/dictionary/portuguese.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:48.479498395 +0200 CEST m=+26.882430527
+// 2025-07-01 11:44:29.609866577 +0200 CEST m=+25.753052163
 // using data from
 // /usr/share/dict/portuguese
 package dictionary

internal/dictionary/spanish.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:53.639769691 +0200 CEST m=+32.042701830
+// 2025-07-01 11:44:33.553680888 +0200 CEST m=+29.696866477
 // using data from
 // /usr/share/dict/spanish
 package dictionary

internal/dictionary/swiss.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:52:56.749052335 +0200 CEST m=+35.151984459
+// 2025-07-01 11:44:36.139133632 +0200 CEST m=+32.282319191
 // using data from
 // /usr/share/dict/swiss
 package dictionary

internal/dictionary/words.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:53:00.811344766 +0200 CEST m=+39.214276934
+// 2025-07-01 11:44:39.609803213 +0200 CEST m=+35.752988772
 // using data from
 // /usr/share/dict/words
 package dictionary

internal/gen.go

@@ -65,6 +65,8 @@ type exportTemplateData struct {
 	VarNames  []string
 }
 
+var isAlphaNumeric = regexp.MustCompile(`^[a-zA-Z0-9]*$`)
+
 func generateFile(name string) string {
 	fmt.Println("generating file for dictionary " + name)
 
@@ -82,7 +84,7 @@ func generateFile(name string) string {
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
 		w := strings.TrimSpace(scanner.Text())
-		if regexp.MustCompile(`^[a-zA-Z0-9]*$`).MatchString(w) {
+		if isAlphaNumeric.MatchString(w) {
 			words = append(words, w)
 		}
 
@@ -122,7 +124,7 @@ func main() {
 		}
 	}
 
-	f, err := os.Create("words.go")
+	f, err := os.Create("main.go")
 	die(err)
 	defer f.Close()
 	exportTemplate.Execute(f, exportTemplateData{

main.go

@@ -1,6 +1,6 @@
 // Code generated by go generate; DO NOT EDIT.
 // This file was generated by robots at
-// 2025-07-01 11:53:01.467097701 +0200 CEST m=+39.870029846
+// 2025-07-01 11:44:40.317209241 +0200 CEST m=+36.460394792
 // It exports the Dictionaries for easy use
 
 package words