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Ingo Karkat
42 lines
1.2 KiB
VimL
42 lines
1.2 KiB
VimL
" ingo/area.vim: Functions to deal with areas.
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"
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" DEPENDENCIES:
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"
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" Copyright: (C) 2017-2019 Ingo Karkat
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" The VIM LICENSE applies to this script; see ':help copyright'.
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"
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" Maintainer: Ingo Karkat <ingo@karkat.de>
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function! ingo#area#IsEmpty( area )
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"******************************************************************************
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"* PURPOSE:
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" Test whether a:area is empty (or even invalid, with the end before the
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" start). Does not check whether the positions actually exist in the current
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" buffer.
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"* ASSUMPTIONS / PRECONDITIONS:
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" None.
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"* EFFECTS / POSTCONDITIONS:
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" None.
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"* INPUTS:
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" a:area [[startLnum, startCol], [endLnum, endCol]]
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"* RETURN VALUES:
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" 1 if area is valid and covers at least one character, 0 otherwise.
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"******************************************************************************
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if empty(a:area)
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return 1
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elseif a:area[0][0] == 0 || a:area[1][0] == 0
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return 1
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elseif a:area[0][0] > a:area[1][0]
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return 1
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elseif a:area[0][0] == a:area[1][0] && a:area[0][1] > a:area[1][1]
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return 1
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endif
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return 0
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endfunction
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function! ingo#area#EmptyArea( pos ) abort
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return [a:pos, ingo#pos#Before(a:pos)]
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endfunction
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" vim: set ts=8 sts=4 sw=4 noexpandtab ff=unix fdm=syntax :
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