grab: Grab Regular Expressions from Dictionaries

In qdapRegex: Regular Expression Removal, Extraction, and Replacement Tools

Description

convenience function to

Usage

grab(pattern, dictionary = getOption("regex.library"))

Arguments

pattern	A character string starting with "@" that is a regular expression from a qdapRegex dictionary.
dictionary	A dictionary of canned regular expressions to search within.

Details

Many R regular expressions contain doubled backslashes that are not used in other regex interpreters. Using cat can remove backslash escapes (see Examples) or URLencode if using in a url.

Value

Returns a single string regular expression from one of the qdapRegex dictionaries.

Examples

grab("@rm_white")
## Not run: 
## Throws an error
grab("@foo")

## End(Not run)
cat(grab("@pages2"))
## Not run: 
cat(grab("@pages2"), file="clipboard")

## End(Not run)

qdapRegex documentation built on May 29, 2017, 3:53 p.m.