R: Remove Brackets and Double \s from R type Regular Expression

testregex {lazy.tools}

R Documentation

Remove Brackets and Double \s from R type Regular Expression

Description

Remove Brackets and Double \s from R type Regular Expression

Usage

testregex(pattern, expr = "")

Arguments

`pattern`	R type regular expression
`expr`	A string vector containing expressions, or a string which contains several expressions separated by a comma, or "".

Details

A pattern w/o brackets will be printed which can be pasted to
https://jex.im/regulex/#!flags=&re=%5E(a%7Cb)*%3F%24.

Value

NONE

Examples

testregex( "^[[:alpha:].][[:alnum:]_.]*$" )
testregex( "^[[:alpha:].][[:alnum:]_.]*$"
        , c( "a1", "b", ".c1.", "@d_", "1_2", "._" ) )
testregex( "^((([[:alpha:]]|[.][._[:alpha:]])[._[:alnum:]]*)|[.])$"
        , "a1, b, .c1., @d_, 1_2, ._" )

[Package lazy.tools version 0.1.6 ]