R: Wildcards

wildcards {rex}

R Documentation

Wildcards

Description

Wildcards

Usage

zero_or_more(..., type = c("greedy", "lazy", "possessive"))

one_or_more(..., type = c("greedy", "lazy", "possessive"))

maybe(..., type = c("greedy", "lazy", "possessive"))

Arguments

...

shortcuts, R variables, text, or other rex functions.

type

the type of match to perform.

There are three match types

greedy: match the longest string. This is the default matching type.
lazy: match the shortest string. This matches the shortest string from the same anchor point, not necessarily the shortest global string.
possessive: match and don't allow backtracking

Functions

zero_or_more: match ... zero or more times.
one_or_more: match ... one or more times.
maybe: match ... zero or one times.

See Also

Other rex: %or%, capture, character_class, counts, group, lookarounds, not, rex, shortcuts

[Package rex version 1.1.1 Index]