Re: dot in iskeyword in C and sh files

Christian Brabandt wrote:
> Hi Olaf!
>
> On Mi, 05 Aug 2015, Olaf Hering wrote:
>
>> Since some time cycling through variables in a shell file with the
>> asterisk '*' key is broken for me. In the simple example like that:
>>
>> var="val"
>> echo "$var.whatever"
>>
>> I was able to move cursor to "var=", hit "*" and saw all "var" strings
>> highlighted. Recently that broken, only the assignment in above example
>> is highlighted. If I put curly braces around the usage of "var" it gets
>> highlighted as well. But if I move to "whatever" then "var.whatever" is
>> highlighted. Surely thats wrong, "var.whatever" is not a word.
>>
>> After some poking I found that iskeyword= is likely the knob to change.
>> First I did a test with a C file, like:
>>
>> struct var var;
>> var.var = 0;
>>
>> Oddly enough, each "var" is highlighted right away, witout the dot. So
>> it must be something special with files ending in ".sh". Even in this
>> mail each "var" is highlighted, without the dot itself.
>>
>> Looking through the files provided by the vim.rpm I dont spot the place
>> where also the dot is considered a word.
>>
>> Why does that happen for shell files?
>> Why would that behaviour desirable?
> Use
>
> :verbose set iskeyword?
>
> to find out, where it was last modified. I did so and it told me, it was
> set by syntax/sh.vim
>
> Looking into the corresponding syntax file, I find this:
>
> ,----[ syntax/sh.vim ]-
> | " AFAICT "." should be considered part of the iskeyword. Using iskeywords in
> | " syntax is dicey, so the following code permits the user to
> | " g:sh_isk set to a string : specify iskeyword.
> | " g:sh_noisk exists : don't change iskeyword
> | " g:sh_noisk does not exist : (default) append "." to iskeyword
> | if exists("g:sh_isk") && type(g:sh_isk) == 1 " user specifying iskeyword
> | exe "setl isk=".g:sh_isk
> | elseif !exists("g:sh_noisk") " optionally prevent appending '.' to iskeyword
> | setl isk+=.
> | endif
> `----
>
> So simply put into your .vimrc:
>
> :let g:sh_noisk=1
>
One could always take the radical step of reading the help: :help
ft-sh-syntax !

Regards,
Chip Campbell

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