Function reference • rex

Create a regular expression

rex(): Generate a regular expression.

capture() capture_group(): Create a capture group

character_class() one_of() any_of() some_of() none_of() except_any_of() except_some_of() range() `:`() exclude_range(): Create character classes

n_times() between() at_least() at_most(): Counts

group(): Create a grouped expression

`%if_next_is%` `%if_next_isnt%` `%if_prev_is%` `%if_prev_isnt%`: Lookarounds

not(): Do not match

`%or%` or(): Or

zero_or_more() one_or_more() maybe(): Wildcards

String manipulation

re_matches(): Match function

re_substitutes(): Substitute regular expressions in a string with another string.

For developers

as.regex(): Coerce objects to a regex.

as.character(<regex>) print(<regex>) regex(): Regular Expression

character_class_escape(): Character class escapes

escape(): Escape characters for a regex

shortcuts: Shortcuts

single_shortcuts: Single shortcuts

register_shortcuts(): Register the Rex shortcuts

rex_mode(): Toggles rex mode.