pub fn get_chars_matching_func(
  s: String,
  acc: String,
  match_func: fn(String) -> Bool,
) -> #(String, String)

pub fn get_name_ignore_ws(s: String) -> #(String, String, Int)

pub fn get_whitespace(s: String) -> #(String, String)

pub fn is_alphanumeric(grapheme: String) -> Bool

pub fn is_alphanumeric_or_dash_or_underscore(
  grapheme: String,
) -> Bool

pub fn is_alphanumeric_or_dash_or_underscore_or_period(
  grapheme: String,
) -> Bool

pub fn is_digit(grapheme: String) -> Bool

pub fn is_lower_ascii(grapheme: String) -> Bool

pub fn is_not_double_quote(grapheme: String) -> Bool

pub fn is_not_gt(grapheme: String) -> Bool

pub fn is_not_single_quote(grapheme: String) -> Bool

pub fn is_not_whitespace(grapheme: String) -> Bool

pub fn is_upper_ascii(grapheme: String) -> Bool

pub fn is_whitespace(grapheme: String) -> Bool