Files
RenewCMS/internal/infrastructure/persistence/database/articleSlugSnapshot.go
T

61 lines
1.7 KiB
Go
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
package database
import (
"regexp"
"strconv"
"strings"
)
const (
snapshotMaxRunes = 100
snapshotFallbackSlug = "article"
)
var snapshotNonSlugRun = regexp.MustCompile(`[^a-z0-9]+`)
var snapshotFolder = strings.NewReplacer(
"à", "a", "á", "a", "â", "a", "ã", "a", "ä", "a", "å", "a", "ā", "a", "ă", "a", "ą", "a",
"æ", "ae",
"ç", "c", "ć", "c", "č", "c", "ĉ", "c",
"ď", "d", "đ", "d",
"è", "e", "é", "e", "ê", "e", "ë", "e", "ē", "e", "ė", "e", "ę", "e", "ě", "e",
"ğ", "g",
"ì", "i", "í", "i", "î", "i", "ï", "i", "ī", "i", "į", "i", "ı", "i",
"ł", "l", "ľ", "l",
"ñ", "n", "ń", "n", "ň", "n",
"ò", "o", "ó", "o", "ô", "o", "õ", "o", "ö", "o", "ø", "o", "ō", "o", "ő", "o",
"œ", "oe",
"ř", "r",
"ś", "s", "š", "s", "ş", "s", "ș", "s",
"ß", "ss",
"ť", "t", "ț", "t", "ţ", "t",
"ù", "u", "ú", "u", "û", "u", "ü", "u", "ū", "u", "ů", "u", "ű", "u", "ų", "u",
"ý", "y", "ÿ", "y",
"ź", "z", "ż", "z", "ž", "z",
)
func snapshotSlug(text string) string {
folded := snapshotFolder.Replace(strings.ToLower(text))
generated := strings.Trim(snapshotNonSlugRun.ReplaceAllString(folded, "-"), "-")
generated = snapshotTruncate(generated, snapshotMaxRunes)
if generated == "" {
return snapshotFallbackSlug
}
return generated
}
func snapshotSlugWithSuffix(base string, attempt int) string {
if attempt <= 1 {
return base
}
suffix := "-" + strconv.Itoa(attempt)
return snapshotTruncate(base, snapshotMaxRunes-len(suffix)) + suffix
}
func snapshotTruncate(candidate string, limit int) string {
if len(candidate) <= limit {
return candidate
}
return strings.TrimRight(candidate[:limit], "-")
}