vim/vim-exchange
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Use srings to describe exchange region comparison

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... in preparation for things to come.
This commit is contained in:
Tom McDonald 2014-04-27 10:14:13 -04:00
parent 06f62c9f51
commit a55ebe1c8d
1 changed files with 7 additions and 6 deletions
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13
plugin/exchange.vim
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@ -65,10 +65,10 @@ function! s:exchange_set(type, ...)
let reverse = 0
let cmp = s:compare(exchange1, exchange2)
if cmp == 0
if cmp == 'overlap'
echohl WarningMsg | echo "Exchange aborted: overlapping text" | echohl None
return s:exchange_clear()
elseif cmp > 0
elseif cmp == 'gt'
let reverse = 1
let [exchange1, exchange2] = [exchange2, exchange1]
endif
@ -132,10 +132,10 @@ function! s:compare(x, y)
" Compare two blockwise regions.
if xm == "\<C-V>" && ym == "\<C-V>"
if s:intersects(xs, xe, ys, ye)
return 0
return 'overlap'
endif
let cmp = xs[2] - ys[2]
return cmp == 0 ? -1 : cmp
return cmp <= 0 ? 'lt' : 'gt'
endif
" TODO: Compare a blockwise region with a linewise or characterwise region.
@ -145,10 +145,11 @@ function! s:compare(x, y)
" Compare two linewise or characterwise regions.
if (s:compare_pos(xs, ye) <= 0 && s:compare_pos(ys, xe) <= 0) || (s:compare_pos(ys, xe) <= 0 && s:compare_pos(xs, ye) <= 0)
" x and y overlap in buffer.
return 0
return 'overlap'
endif
return s:compare_pos(xs, ys)
let cmp = s:compare_pos(xs, ys)
return cmp == 0 ? 'overlap' : cmp < 0 ? 'lt' : 'gt'
endfunction
function! s:compare_pos(x, y)