regex

func ExpandPattern ¶

func ExpandPattern(pattern string) ([]string, error)

ExpandPattern expands a regex pattern into all possible domain name combinations Supports: [a-z] character ranges, {n} repetition counts, and literal characters Example: "[a-z]{3}" generates all 3-letter combinations: aaa, aab, aac, ..., zzz

func IsPatternSafe ¶

func IsPatternSafe(pattern string, maxCombinations int) (bool, int, error)

func ValidatePattern ¶

func ValidatePattern(pattern string) error