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Use strchars to calculate string lengths

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This also adds a compatability wrapper, so that versions older than
Vim 7.3 are supported.

This is inspired by, and includes s:strchars from, @ruipgpinheiro's
commit e2d1295a3d3708e8d2a5eb30cac840fc9520bb8b
This commit is contained in:
mrmr1993 2018-03-14 15:13:40 +00:00
parent 6819443d6a
commit 5d2d764368
1 changed files with 16 additions and 6 deletions
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22
autoload/airline/extensions/tabline/tabs.vim
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@ -46,6 +46,16 @@ function! s:get_title(tab_nr_type, i)
return val.'%'.a:i.'T %{airline#extensions#tabline#title('.a:i.')} %)'
endfunction
" Compatibility wrapper for strchars, in case this vim version does not
" have it natively
function! s:strchars(str)
if exists('*strchars')
return strchars(a:str)
else
return strlen(substitute(a:str, '.', 'a', 'g'))
endif
endfunction
function! airline#extensions#tabline#tabs#get()
let curbuf = bufnr('%')
let curtab = tabpagenr()
@ -91,14 +101,14 @@ function! airline#extensions#tabline#tabs#get()
let right_tab = curtab + 1
let left_position = tabs_position
let right_position = tabs_position + 1
let remaining_space = &columns - strlen(s:evaluate_tabline(b.build()))
let remaining_space = &columns - s:strchars(s:evaluate_tabline(b.build()))
let skipped_tabs_marker = get(g:, 'airline#extensions#tabline#skipped_tabs_marker', '...')
let remaining_space -= 4 + 2 * strlen(s:evaluate_tabline(skipped_tabs_marker))
let remaining_space -= 4 + 2 * s:strchars(s:evaluate_tabline(skipped_tabs_marker))
" Add the current tab
let tab_title = s:get_title(tab_nr_type, curtab)
let remaining_space -= strlen(s:evaluate_tabline(tab_title)) + 1
let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + 1
let group = 'airline_tabsel'
if g:airline_detect_modified
for bi in tabpagebuflist(curtab)
@ -118,7 +128,7 @@ function! airline#extensions#tabline#tabs#get()
" Add the tab to the right
if right_tab <= num_tabs
let tab_title = s:get_title(tab_nr_type, right_tab)
let remaining_space -= strlen(s:evaluate_tabline(tab_title)) + 1
let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + 1
call b.insert_section('airline_tab', tab_title, right_position)
let right_position += 1
let right_tab += 1
@ -127,7 +137,7 @@ function! airline#extensions#tabline#tabs#get()
while remaining_space > 0
if left_tab > 0
let tab_title = s:get_title(tab_nr_type, left_tab)
let remaining_space -= strlen(s:evaluate_tabline(tab_title)) + 1
let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + 1
if remaining_space >= 0
call b.insert_section('airline_tab', tab_title, left_position)
let right_position += 1
@ -135,7 +145,7 @@ function! airline#extensions#tabline#tabs#get()
endif
elseif right_tab <= num_tabs
let tab_title = s:get_title(tab_nr_type, right_tab)
let remaining_space -= strlen(s:evaluate_tabline(tab_title)) + 1
let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + 1
if remaining_space >= 0
call b.insert_section('airline_tab', tab_title, right_position)
let right_position += 1