Re: expand "(" doesn't work

Reply to message «Re: expand "(" doesn't work»,
sent 11:22:02 02 June 2011, Thursday
by Marcin Szamotulski:

> Hi,
> You can use:
> getline(".")[col(".")-1]
> Best,
> Marcin
No, not this. You should use either
matchstr(getline('.')[col('.')-1:], '^.')
or
nr2char(char2nr(getline('.')[col('.')-1:]))
. First will capture character with composing characters if any, second will
capture it without them, but will fail if next character is not a valid unicode.
Your variant is not aware of multibyte characters and thus should not be used.

Original message:
> Hi,
> You can use:
> getline(".")[col(".")-1]
> Best,
> Marcin
>
> On 23:00 Wed 01 Jun , sinbad wrote:
> > On Jun 1, 11:19 pm, Gary Johnson <garyj...@spocom.com> wrote:
> > > On 2011-06-01, sinbad wrote:
> > > > hi,
> > > >
> > > > doesn't expand("<cword>") work if the cursor is under "(".
> > > > it works for ")" though. any reason for this ?
> > > > i am running vim 7.0
> > >
> > > I'm running 7.3.189 and it behaves differently. I started vim as
> > >
> > > $ vim -N -u NONE
> > >
> > > and used the line
> > >
> > > Now is the (time) for all good men
> > >
> > > and the command
> > >
> > > :echo expand("<cword>")
> > >
> > > with the following results.
> > >
> > > Cursor Command
> > > Location Output
> > > -------- -------
> > > ( time
> > > t time
> > > e time
> > > ) for
> > >
> > > So, <cword> appears to refer to the word under the cursor or to
> > > the first word to the right if the cursor is not on a word. This
> > > agrees with the documentation:
> > >
> > > :help cword
> > > :help star
> > >
> > > The behavior at 5.4m.23 was to expand <cword> to an empty string.
> > > (See $VIMRUNTIME/doc/version5.txt.) I don't know when this changed
> > > to the current behavior or what the behavior was at 7.0.
> > >
> > > Regards,
> > > Gary
> >
> > so, how can one read any char under the cursor. is there an equivalent
> > <cchar>
> >
> >
> > thanks
> > sinbad