 Tip #320: Borland pageup/down behavier
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| created: |
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August 26, 2002 14:49 |
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complexity: |
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basic |
| author: |
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Simon "neoneye" Strandgaard |
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as of Vim: |
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6.0 |
borlandbehavier = the cursor keeps the same xy position during pageup/down
Im new to VIM scripting, im sure it can be done smarter?
I read vimtip #105 and it gave me a clue of how BorlandPageUp/Down could be done.
" i could'nt find any get_number_of_visible_lines function, so i made my own.
function GetNumberOfVisibleLines()
let cur_line = line(".")
let cur_col = virtcol(".")
normal H
let top_line = line(".")
normal L
let bot_line = line(".")
execute "normal " . cur_line . "G"
execute "normal " . cur_col . "|"
return bot_line - top_line
endfunc
" noremap <PageUp> 39<C-U>:set scroll=0<CR>
function! MyPageUp()
let visible_lines = GetNumberOfVisibleLines()
execute "normal " . visible_lines . "\<C-U>:set scroll=0\r"
endfunction
" noremap <PageDown> 39<C-D>:set scroll=0<CR>
function! MyPageDown()
let visible_lines = GetNumberOfVisibleLines()
execute "normal " . visible_lines . "\<C-D>:set scroll=0\r"
endfunction
" BorlandPascal pageup/down behavier!
" todo: when hitting top/bottom of file, then restore Y to lastY
noremap <PageUp> :call MyPageUp()<CR>
noremap <PageDown> :call MyPageDown()<CR>
<< text formatting (lining up ='s,('s etc)) |
Centura swap with upper/lower line behavier >>
Additional Notes
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Anonymous,
August 27, 2002 2:34
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| For maintaining the same x coordinate, help startofline
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Anonymous,
August 27, 2002 4:21
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| And CTRL-U (up), CTRL-D (down) may also be useful for what you want (half page scrolls)
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[email protected],
February 2, 2003 12:43
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A solution that I use (easier, I would say, but has a small side-effect) is this:
map <PageDown> :set scroll=0<CR>:set scroll^=2<CR>:set scroll-=1<CR><C-D>:set scroll=0<CR>
map <PageUp> :set scroll=0<CR>:set scroll^=2<CR>:set scroll-=1<CR><C-U>:set scroll=0<CR>
I found Vim's normal PgUp/PgDn behaviour weird - I think it's different from every other editor I've used and I was unable to get used to it. The above two lines are godsent! :-)
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Andrew Pimlott <[email protected]>,
February 3, 2003 14:32
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| I just entered a refinement of vimtip #105 as vimtim #417. You might find it useful to incorporate the improvements into this tip.
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