On 9月10日, 上午12时19分, "Benjamin R. Haskell" <[email protected]> wrote:
> On Thu, 9 Sep 2010, Christian Brabandt wrote:
> > On Thu, September 9, 2010 11:36 am, livim wrote:
> >> I can't understand " It might be nice to have tabs after the first non-
> >> blank inserted as spaces if you do this though. "
> >> Who can give me some illustration?
>
> > imap <expr> <tab> getline('.')[0:col('.')-1]=~'^\s*$'?'<tab>' : repeat(' ',
> > &ts)
>
> Cool. You lose the 'tabbyness', though. This modification adds a tab
> (if no nonwhitespace so far) or enough spaces to put the cursor at the
> next tabstop:
>
> imap <expr> <tab> getline('.')[0:col('.')-1] !~ '\S' ? '<tab>'
> \ : repeat(' ', &ts-((col('.')-1) % &ts))
>
> To the OP, for an example of why the concept is useful, see the file
> below, which is indented with tabs.
>
> >> indicates where <tab> was pressed to insert spaces when 'tabstop' was 6
> >> (using the above mapping).
>
> Set tabstop to different values:
> :se ts=2
> :se ts=9
> to see that the vertically aligned '=' signs stay aligned.
>
> ===> simple-tab-example.c <===
> int main(void) {
> int i>> = 10;
> float f>> = 20;
> if (1) {
> int asdf>> = 1;
> int j>> = 1;
> }
> return 0;}
>
> /* vim:set listchars=tab\:│_ ts=6 sts=0: */
>
> --
> Best,
> Ben
Thank you so much!
But it still has some problem: repeat(' ', &ts-((col('.')-1) %
&ts))
when ts=8,
if the first character of the line is '\t' , then the second character
's column position (col('.')) is 2 , not 9 !
Maybe we shall use a function which will return the virtual column
number.
Besides, in your simple-tab-example.c , if you have used that mapping,
why it didn't generate any '\t' at the beginning of lines? "(if no
nonwhitespace so far)"
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