qdapRegex 0.5.0

Group Wrap and `or` Concatenate Elements

Usage

group_or(..., group.all = TRUE)

Arguments

group.all
logical. If TRUE the resulting `or` concatenated elements will be wrapped with grouping parenthesis.
...
Regular expressions to paste together or a named expression from the default regular expression dictionary prefixed with single at (@) (e.g., "@rm_hash") or a regular expression from regex_supplement dictionary prefixed with an at (@) (e.g., "@time_12_hours").

Description

A wrapper for group and pastex that wraps each sub-expression element with grouping parenthesis and then concatenate/joins grouped strings with a regex `or` ("|"). Equivalent to pastex(group(...), sep = "|").

Examples

group_or("@rm_hash", "@rm_tag")



[1] "(((?<!/)((#)(\\w+)))|((?<![@\\w])(@)(([a-z0-9_]+)\\b)))"



group_or("them", "those", "that", "these")



[1] "((them)|(those)|(that)|(these))"



group_or("them", "those", "that", "these", group.all = FALSE)



[1] "(them)|(those)|(that)|(these)"