\name{str_line_replace}
\alias{str_line_replace}
\alias{str_firstLine_replace}
\alias{str_lastLine_replace}
\title{Replace first or last line in strings}
\usage{
str_line_replace(
str,
pattern,
replacement,
which = c("first", "last", "poles", "all")
)
str_firstLine_replace(str, pattern, replacement)
str_lastLine_replace(str, pattern, replacement)
}
\arguments{
\item{str}{String with pattern to make replacement}
\item{pattern}{Regular expression to replace}
\item{replacement}{What to replace the pattern with}
\item{which}{which one? first, last, all or the poles (first AND last)}
}
\value{
string
}
\description{
These functions serve to change the first or last line of strings which match a specific pattern (regex).
`str_firstLine_replace()` replaces the first line that matches the pattern.
`str_lastLine_replace()` replaces the last line that matches the pattern
They are useful, for example, when reading a text file with many lines and you want to preserve the lines of that text file.
When `which='all'`, it is a wrapper for `stringr::str_replace()`.
}
\examples{
