Re: what does iskeyword option do?

On 25.02.15 10:32, Tim Chase wrote:
> On 2015-02-25 08:02, FlashBurn wrote:
> > I'm trying to understand the meaning of 'iskeyword' option but I
> > can't figure out from the help what it does. Any help in finding
> > out of the meaning of this option is greatly appreciated.
>
> 'isk' contains a list of characters (or character-ranges) for those
> characters that should be considered a "word". This comes into play
> when using "\<", "\>", "\k" and "\K" in a regular expression; what
> gets considered when you use "*" and "#" to search; what the "iw" and
> "aw" text-objects select; what's considered a "w"ord motion; how
> abbreviations are found; and plenty of other places.
>
> For example, by default "-" isn't part of the 'isk' setting, but if
> you wanted "vip" to highlight/select whole CSS selectors like
> "background-color"
>
> :set isk+=-
>
> to add the dash. Now, if you do "viw" anywhere in the attribute,
> it will highlight/select the entire "background-color" not just
> "background" or "color".

That all seems to confirm that "iskeyword" is a misnomer for what in
reality is "istoken", AFAICT. Not only is token boundary recognition the
process described above, but the process in no way resembles detection
of a member of a keyword set, like those use in 'C': "if", "switch",
"case", etc.

If it were "isword", rather than "iskeyword", then the name would also
be truthful, and more easily understood, I guess.

Erik

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