Thank you, it's perfect.

david

2009/1/30 Wacek Kusnierczyk <Waclaw.Marcin.Kusnierczyk@idi.ntnu.no>

> David Hajage wrote:
> > Hello R users,
> >
> > I have a string, for example:
> > x <- "\t\tabc\t def"
> >
> > This string can contain any number of tabulations. I want to replace each
> > tabulation of the begining of the string by the same number of space:
> > "  abc\t def"
> >
> > I'm trying to do this with gsub :
> >
> >> gsub("\t", " ", x) # replace every \t
> >>
> > [1] "  abc  def"
> >
> >> sub("^\t", " ", x) # replace only the first \t
> >>
> > [1] " \tabc\t def"
> >
> >> sub("^\t*", " ", x) # replace all beginning \t, but only one space
> >>
> > [1] " abc\t def"
> >
> > How can I do this ?
> >
> >
>
> there may be better solutions, but this should do:
>
> strings = c('pure', '\t<- 1 removed', '\t\t<- 2 removed, 1 left ->\t')
> gsub('\t|(*COMMIT)(*FAIL)', ' ', strings, perl=TRUE)
> # "pure" " <- 1 removed" "  <- 2 removed, 1 left ->\t"
>
> vQ
>
>
>

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