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https://github.com/SpaceVim/SpaceVim.git
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81 lines
2.5 KiB
VimL
81 lines
2.5 KiB
VimL
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" =============================================================================
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" Filename: autoload/calendar/string.vim
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" Author: itchyny
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" License: MIT License
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" Last Change: 2016/11/06 12:00:00.
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" =============================================================================
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let s:save_cpo = &cpo
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set cpo&vim
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" String manipulations.
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" All the functions were imported from vital.vim.
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" https://github.com/vim-jp/vital.vim (Public Domain)
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let s:cache = calendar#countcache#new('string.vim')
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function! calendar#string#truncate(str, width) abort
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let key = a:width . 'C' . a:str
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if s:cache.has_key(key) | return s:cache.get(key) | endif
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if a:str =~# '^[\x20-\x7e]*$'
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return len(a:str) < a:width
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\ ? printf('%-' . a:width . 's', a:str)
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\ : strpart(a:str, 0, a:width)
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endif
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let ret = a:str
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let width = strdisplaywidth(a:str)
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if width > a:width
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let ret = calendar#string#strwidthpart(ret, a:width)
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let width = strdisplaywidth(ret)
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endif
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if width < a:width
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let ret .= repeat(' ', a:width - width)
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endif
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return s:cache.save(key, ret)
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endfunction
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function! calendar#string#truncate_reverse(str, width) abort
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let key = a:width . 'U' . a:str
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if s:cache.has_key(key) | return s:cache.get(key) | endif
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if a:str =~# '^[\x20-\x7e]*$'
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return len(a:str) < a:width
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\ ? printf('%-' . a:width . 's', a:str)
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\ : strpart(a:str, len(a:str) - a:width)
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endif
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let ret = a:str
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let width = strdisplaywidth(a:str)
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if width > a:width
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let ret = calendar#string#strwidthpart_reverse(ret, a:width)
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let width = strdisplaywidth(ret)
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endif
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if width < a:width
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let ret = repeat(' ', a:width - width) . ret
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endif
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return s:cache.save(key, ret)
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endfunction
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function! calendar#string#strdisplaywidth(str) abort
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return strdisplaywidth(a:str)
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endfunction
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function! calendar#string#strwidthpart(str, width) abort
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let key = a:width . 'T' . a:str
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if s:cache.has_key(key) | return s:cache.get(key) | endif
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let str = tr(a:str, "\t", ' ')
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let vcol = a:width + 2
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let ret = matchstr(str, '.*\%<' . (vcol < 0 ? 0 : vcol) . 'v')
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return s:cache.save(key, ret)
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endfunction
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function! calendar#string#strwidthpart_reverse(str, width) abort
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let key = a:width . 'R' . a:str
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if s:cache.has_key(key) | return s:cache.get(key) | endif
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let str = tr(a:str, "\t", ' ')
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let vcol = strdisplaywidth(str) - a:width
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let ret = matchstr(str, '\%>' . (vcol < 0 ? 0 : vcol) . 'v.*')
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return s:cache.save(key, ret)
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endfunction
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let &cpo = s:save_cpo
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unlet s:save_cpo
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