- after
- after_ci
- after_last
- after_last_ci
- before
- before_ci
- before_last
- before_last_ci
- capitalize
- capitalize_words
- chr
- chunk
- concat
- contains
- contains_ci
- convert_encoding
- detect_encoding
- ends_with
- ends_with_ci
- fold
- format
- format_number
- from_code_points
- is_empty
- is_utf8
- join
- length
- levenshtein
- lowercase
- metaphone
- ord
- pad_left
- pad_right
- range
- repeat
- replace
- replace_ci
- replace_every
- replace_every_ci
- reverse
- search
- search_ci
- search_last
- search_last_ci
- slice
- splice
- split
- starts_with
- starts_with_ci
- strip_prefix
- strip_suffix
- to_int
- trim
- trim_left
- trim_right
- truncate
- uppercase
- width
- wrap