vim-easymotion/autoload/EasyMotion/command_line.vim

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"=============================================================================
" FILE: autoload/EasyMotion/command_line.vim
" AUTHOR: haya14busa
" Reference: https://github.com/osyo-manga/vim-over
" Last Change: 26 Jan 2014.
" License: MIT license {{{
" Permission is hereby granted, free of charge, to any person obtaining
" a copy of this software and associated documentation files (the
" "Software"), to deal in the Software without restriction, including
" without limitation the rights to use, copy, modify, merge, publish,
" distribute, sublicense, and/or sell copies of the Software, and to
" permit persons to whom the Software is furnished to do so, subject to
" the following conditions:
"
" The above copyright notice and this permission notice shall be included
" in all copies or substantial portions of the Software.
"
" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
" IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
" CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
" TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
" SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
" }}}
"=============================================================================
scriptencoding utf-8
" Saving 'cpoptions' {{{
let s:save_cpo = &cpo
set cpo&vim
" }}}
function! s:InputPrompt(message, input) "{{{
redraw
echohl Question | echon a:message | echohl None
echon a:input
endfunction "}}}
function! s:Cancell() " {{{
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call s:after_input()
keepjumps call setpos('.', s:save_orig_pos)
redraw
echo 'EasyMotion: Cancelled'
return ''
endfunction " }}}
function! s:getPromptMessage(num_strokes) "{{{
if a:num_strokes == 1
let prompt = substitute(
\ substitute(g:EasyMotion_prompt,'{n}', a:num_strokes, 'g'),
\ '(s)', '', 'g')
elseif a:num_strokes == -1
let prompt = substitute(
\ substitute(g:EasyMotion_prompt, '{n}\s\{0,1}', '', 'g'),
\ '(s)', 's', 'g')
else
let prompt = substitute(
\ substitute(g:EasyMotion_prompt,'{n}', a:num_strokes, 'g'),
\ '(s)', 's', 'g')
endif
return prompt
endfunction "}}}
function! s:before_input(num_strokes) "{{{
if a:num_strokes == -1 && g:EasyMotion_inc_highlight
call EasyMotion#highlight#delete_highlight()
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let shade_hl_re = '\_.*'
call EasyMotion#highlight#add_highlight(shade_hl_re, g:EasyMotion_hl_group_shade)
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call EasyMotion#highlight#add_highlight('\%#', g:EasyMotion_hl_inc_cursor)
endif
endfunction "}}}
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function! s:after_input() "{{{
call EasyMotion#highlight#delete_highlight()
endfunction "}}}
function! s:offscreen_search(re) "{{{
" First: search within visible screen range
call s:adjust_screen()
silent! let pos = searchpos(a:re, s:direction . 'n', s:orig_line_end[1])
if pos != [0, 0]
" Restore cursor posision
keepjumps call setpos('.', s:orig_pos)
else
" Second: if there were no much, search off screen
silent! let pos = searchpos(a:re, s:direction)
if pos != [0, 0]
" Match
keepjumps call setpos('.', pos)
" Move cursor
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if s:save_direction != 'b'
normal! zzH0
else
normal! zzL0
endif
else
" No much
call s:adjust_screen()
keepjumps call setpos('.', s:orig_pos)
endif
endif
endfunction "}}}
function! s:adjust_screen() "{{{
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if s:save_direction != 'b'
" Forward
keepjumps call setpos('.', s:orig_line_start)
normal! zt
else
" Backward
keepjumps call setpos('.', s:orig_line_end)
normal! zb
endif
endfunction "}}}
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function! s:search_histories() "{{{
return map(range(&history), 'histget("search", v:val * -1)')
endfunction "}}}
function! EasyMotion#command_line#GetInput(num_strokes, prev, direction) "{{{
let previous_input = a:prev
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let s:save_direction = a:direction == 1 ? 'b' : ''
let s:direction = s:save_direction
let input = ''
let prompt = s:getPromptMessage(a:num_strokes)
let s:orig_pos = getpos('.')
let s:orig_line_start = getpos('w0')
let s:orig_line_end = getpos('w$')
let s:save_orig_pos = deepcopy(s:orig_pos)
call s:before_input(a:num_strokes)
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" let s:search_hist = s:search_histories()
let s:search_hist = []
let s:search_cnt = 0
while EasyMotion#helper#strchars(input) < a:num_strokes ||
\ a:num_strokes == -1
if g:EasyMotion_show_prompt
call s:InputPrompt(prompt, input)
endif
let c = getchar()
let s:char = type(c) == type(0) ? nr2char(c) : c
if EasyMotion#command_line#is_input("\<Esc>")
" Cancel if Escape key pressed
call s:Cancell() | let input = '' | break
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elseif EasyMotion#command_line#is_input("\<CR>")
if len(input) == 0
let input = previous_input | break
endif
break
elseif EasyMotion#command_line#is_input("\<C-j>")
break
elseif EasyMotion#command_line#is_input("\<C-c>")
" Cancel
call s:Cancell() | let input = '' | break
elseif EasyMotion#command_line#is_input("\<C-h>")
" Delete one character
if len(input) == 0
call s:Cancell() | let input = '' | break
endif
let input = substitute(input, '.$', '', '')
elseif EasyMotion#command_line#is_input("\<C-d>")
" Delete one character
if len(input) == 0
call s:Cancell() | let input = '' | break
endif
let input = substitute(input, '.$', '', '')
elseif EasyMotion#command_line#is_input("\<C-u>")
" Delete all
if len(input) == 0
call s:Cancell() | let input = '' | break
endif
let input = ''
elseif EasyMotion#command_line#is_input("\<C-w>")
" Delete word
let input = matchstr(input, '^\zs.\{-}\ze\(\(\w*\)\|\(.\)\)$')
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elseif EasyMotion#command_line#is_input("\<C-p>") || EasyMotion#command_line#is_input("\<C-n>")
if s:search_cnt == 0 && empty(s:search_hist)
let cmdline = '^' . input
let s:search_hist = filter(s:search_histories(), 'v:val =~ cmdline')
endif
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if EasyMotion#command_line#is_input("\<C-n>")
let s:search_cnt = max([s:search_cnt - 1, 0])
endif
if EasyMotion#command_line#is_input("\<C-p>")
let s:search_cnt = min([s:search_cnt + 1, len(s:search_hist)])
endif
let input = get(s:search_hist, s:search_cnt, input)
elseif EasyMotion#command_line#is_input("\<Tab>")
exec "normal! \<C-f>"
let s:orig_pos = getpos('.')
let s:orig_line_start = getpos('w0')
let s:orig_line_end = getpos('w$')
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let s:direction = ''
elseif EasyMotion#command_line#is_input("\<S-Tab>")
exec "normal! \<C-b>"
let s:orig_pos = getpos('.')
let s:orig_line_start = getpos('w0')
let s:orig_line_end = getpos('w$')
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let s:direction = 'b'
elseif EasyMotion#command_line#is_input("\<C-o>")
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keepjumps call setpos('.', s:save_orig_pos)
let s:orig_pos = s:save_orig_pos
let s:orig_line_start = getpos('w0')
let s:orig_line_end = getpos('w$')
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let s:direction = s:save_direction
elseif EasyMotion#command_line#is_input("\<C-z>")
normal! zR
elseif char2nr(s:char) == 128 || char2nr(s:char) < 27
" Do nothing for special key
continue
else
let input .= s:char
endif
" Incremental routine {{{
if a:num_strokes == -1
let re = input
let case_flag = EasyMotion#helper#should_use_smartcase(re) ? '\c' : '\C'
let re .= case_flag
if g:EasyMotion_inc_highlight "{{{
call EasyMotion#highlight#delete_highlight('EasyMotionIncSearch')
if len(input) > 0
silent! call EasyMotion#highlight#add_highlight(re, g:EasyMotion_hl_inc_search)
endif
endif "}}}
if g:EasyMotion_off_screen_search "{{{
call s:offscreen_search(re)
endif "}}}
endif
"}}}
endwhile
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call s:after_input()
return input
endfunction "}}}
function! EasyMotion#command_line#char() "{{{
return s:char
endfunction "}}}
function! EasyMotion#command_line#is_input(key) "{{{
return EasyMotion#command_line#keymap(EasyMotion#command_line#char()) == a:key
endfunction "}}}
function! EasyMotion#command_line#keymap(key) "{{{
return get(extend(deepcopy(s:default_key_mapping), g:EasyMotion_command_line_key_mappings), a:key, a:key)
endfunction "}}}
" Default_key_mapping: {{{
let s:default_key_mapping = {
\ "\<Right>" : "\<C-f>",
\ "\<Left>" : "\<C-b>",
\ "\<Up>" : "\<C-p>",
\ "\<Down>" : "\<C-n>",
\ "\<BS>" : "\<C-h>",
\ "\<Del>" : "\<C-d>",
\ "\<Home>" : "\<C-a>",
\ "\<End>" : "\<C-e>",
\}
"}}}
" Restore 'cpoptions' {{{
let &cpo = s:save_cpo
unlet s:save_cpo
" }}}
" vim: fdm=marker:et:ts=4:sw=4:sts=4