Module string 

String validation functions

Functions

contains

Validates if a string contains a substring

contains_case_insensitive

Validates if a string matches a specific pattern (case-insensitive)

has_length_between

Validates if a string length is within a range

has_max_length

Validates if a string has a maximum length

has_min_length

Validates if a string has a minimum length

is_alpha

Validates if a string contains only alphabetic characters

is_alphanumeric

Validates if a string contains only alphanumeric characters

is_lowercase

Validates if a string is lowercase

is_numeric

Validates if a string contains only numeric characters

is_uppercase

Validates if a string is uppercase