buildDelimRegex {crunch} | R Documentation |
Build Regex to find delimited items.
Description
A delimited item maple
can appear in a list in four ways
At the start of a list
maple; oak
In the middle of a list
oak; maple; birch
At the end of a list
oak; maple
Alone with no delimiters
maple
Usage
buildDelimRegex(str, delim)
Arguments
str |
A string whose presence indicates a selection |
delim |
The delimiter separating the responses |
Details
This function builds a regex expression which captures those four cases It
is mostly broken out of createSubvarDeriv()
for testing purposes.
Value
A character string
[Package crunch version 1.31.0 Index]