qdapRegex 0.5.0

Boundary Wrap (Bind) and `or` Concatenate Elements

Usage

bind_or(..., group.all = TRUE, left = "\\b", right = left)

Arguments

group.all
logical. If TRUE the resulting `or` concatenated elements will be wrapped with grouping parenthesis.
left
A single length character vector to use as the left bound.
right
A single length character vector to use as the right bound.
...
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 bind and pastex that wraps each sub-expression element with left/right boundaries (\b by default) and then concatenate/joins bound strings with a regex `or` ("|"). Equivalent to pastex(bind(...), sep = "|").

Examples

bind_or(LETTERS)



[1] "(\\bA\\b|\\bB\\b|\\bC\\b|\\bD\\b|\\bE\\b|\\bF\\b|\\bG\\b|\\bH\\b|\\bI\\b|\\bJ\\b|\\bK\\b|\\bL\\b|\\bM\\b|\\bN\\b|\\bO\\b|\\bP\\b|\\bQ\\b|\\bR\\b|\\bS\\b|\\bT\\b|\\bU\\b|\\bV\\b|\\bW\\b|\\bX\\b|\\bY\\b|\\bZ\\b)"



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



[1] "(\\bthem\\b|\\bthose\\b|\\bthat\\b|\\bthese\\b)"



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



[1] "\\bthem\\b|\\bthose\\b|\\bthat\\b|\\bthese\\b"