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terminal.vim
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terminal.vim
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"=============================================================================
" FILE: terminal.vim
" AUTHOR: Shougo Matsushita <Shougo.Matsu@gmail.com>
" Last Modified: 20 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.
" }}}
"=============================================================================
function! vimshell#terminal#init() "{{{
let b:interactive.terminal = {
\ 'syntax_names' : {},
\ 'titlestring' : &titlestring,
\ 'titlestring_save' : &titlestring,
\ 'save_pos' : getpos('.')[1 : 2],
\ 'region_top' : 0,
\ 'region_bottom' : 0,
\ 'standard_character_set' : 'United States',
\ 'alternate_character_set' : 'United States',
\ 'current_character_set' : 'United States',
\ 'is_error' : 0,
\ 'wrap' : &l:wrap,
\}
if s:use_conceal()
syntax match vimshellEscapeSequenceConceal
\ contained conceal '\e\[[0-9;]*m'
syntax match vimshellEscapeSequenceMarker
\ conceal '\e\[0*m\|\e0m\['
endif
endfunction"}}}
function! vimshell#terminal#print(string, is_error) "{{{
if !has_key(b:interactive, 'terminal')
call vimshell#terminal#init()
endif
setlocal modifiable
if g:vimshell_enable_debug
echomsg 'print string = ' . string(a:string)
endif
" Skip next auto completion.
call vimshell#util#skip_next_complete()
if &filetype ==# 'vimshell' &&
\ empty(b:vimshell.continuation) && (vimshell#check_prompt()
\ || vimshell#util#head_match(getline('.'),
\ vimshell#get_secondary_prompt()))
" Move line.
call append(line('.'), '')
call cursor(line('.')+1, 0)
endif
let current_line = getline('.')
let cur_text = matchstr(getline('.'), '^.*\%' . col('.') . 'c')
let s:virtual = {
\ 'lines' : {},
\ 'col' : 0,
\ 'line' : 0,
\ }
let s:virtual.lines = {}
let [s:virtual.line, s:virtual.col] =
\ s:get_virtual_col(line('.'), col('.')-1)
if g:vimshell_enable_debug
echomsg '[s:virtual.line, s:virtual.col] = ' .
\ string([s:virtual.line, s:virtual.col])
endif
let s:virtual.lines[s:virtual.line] = current_line
if b:interactive.type !=# 'terminal' && a:string !~ '[\e\b]'
call s:optimized_print(a:string, a:is_error)
return
endif
let b:interactive.terminal.is_error = a:is_error
let newstr = ''
let pos = 0
" Optimize checkstr.
let string = a:string
while string =~ '\%(\e\[[0-9;]*m\)\{2,}'
let string = substitute(string,
\ '\e\[[0-9;]*\zsm\e\[\ze[0-9;]*m', ';', 'g')
endwhile
let max = len(string)
while pos < max
let char = string[pos]
if char !~ '[[:cntrl:]]' "{{{
let newstr .= char
let pos += 1
continue
"}}}
elseif char == "\<C-h>" "{{{
" Print rest string.
call s:output_string(newstr)
let newstr = ''
if pos + 1 < max && string[pos+1] == "\<C-h>"
" <C-h><C-h>
call s:control.delete_multi_backword_char()
let pos += 2
else
" <C-h>
call s:control.delete_backword_char()
let pos += 1
endif
continue
"}}}
elseif char == "\<ESC>" "{{{
" Check escape sequence.
let checkstr = string[pos+1 :]
if checkstr == ''
break
endif
" Check CSI pattern.
if checkstr =~ '^\[[0-9;]*.'
let matchstr = matchstr(checkstr, '^\[[0-9;]*.')
if has_key(s:escape_sequence_csi, matchstr[-1:])
call s:output_string(newstr)
let newstr = ''
call call(s:escape_sequence_csi[matchstr[-1:]],
\ [matchstr], s:escape)
let pos += len(matchstr) + 1
continue
endif
endif
" Check simple pattern.
let checkchar1 = checkstr[0]
if has_key(s:escape_sequence_simple_char1, checkchar1) "{{{
call s:output_string(newstr)
let newstr = ''
call call(s:escape_sequence_simple_char1[checkchar1], [''], s:escape)
let pos += 2
continue
endif"}}}
let checkchar2 = checkstr[: 1]
if checkchar2 != '' &&
\ has_key(s:escape_sequence_simple_char2, checkchar2) "{{{
call s:output_string(newstr)
let newstr = ''
call call(s:escape_sequence_simple_char2[checkchar2], [''], s:escape)
let pos += 3
continue
endif"}}}
let matched = 0
" Check match pattern.
for pattern in keys(s:escape_sequence_match) "{{{
if checkstr =~ pattern
let matched = 1
" Print rest string.
call s:output_string(newstr)
let newstr = ''
let matchstr = matchstr(checkstr, pattern)
call call(s:escape_sequence_match[pattern], [matchstr], s:escape)
let pos += len(matchstr) + 1
break
endif
endfor"}}}
if matched
continue
endif"}}}
elseif has_key(s:control_sequence, char) "{{{
" Check other pattern.
" Print rest string.
call s:output_string(newstr)
let newstr = ''
call call(s:control_sequence[char], [], s:control)
let pos += 1
continue
endif"}}}
let newstr .= char
let pos += 1
endwhile
" Print rest string.
call s:output_string(newstr)
" Set lines.
for linenr in sort(map(keys(s:virtual.lines),
\ 'str2nr(v:val)'), 's:sortfunc')
call setline(linenr, substitute(
\ s:virtual.lines[linenr], '[^!]\zs!\{6}\ze[^!]', '', 'g'))
endfor
call s:set_cursor()
endfunction"}}}
function! vimshell#terminal#set_title() "{{{
if !has_key(b:interactive, 'terminal')
call vimshell#terminal#init()
endif
let &titlestring = b:interactive.terminal.titlestring
endfunction"}}}
function! vimshell#terminal#restore_title() "{{{
if !has_key(b:interactive, 'terminal')
call vimshell#terminal#init()
endif
let &titlestring = b:interactive.terminal.titlestring_save
endfunction"}}}
function! vimshell#terminal#clear_highlight() "{{{
if !s:use_conceal()
return
endif
if !has_key(b:interactive, 'terminal')
call vimshell#terminal#init()
endif
for syntax_names in values(b:interactive.terminal.syntax_names)
execute 'highlight clear' syntax_names
execute 'syntax clear' syntax_names
endfor
let b:interactive.terminal.syntax_names = {}
" Restore wrap.
let &l:wrap = b:interactive.terminal.wrap
endfunction"}}}
function! s:optimized_print(string, is_error) "{{{
" Strip <CR>.
let string = substitute(substitute(
\ a:string, "\<C-g>", '', 'g'), '\r\+\n', '\n', 'g')
if g:vimshell_enable_debug
echomsg 'print optimized output string = ' . string(string)
endif
let lines = split(string, '\n', 1)
if string =~ '\r'
call s:print_with_redraw(a:is_error, lines)
else
call s:print_simple(a:is_error, lines)
endif
call cursor(0, col('$'))
let [s:virtual.line, s:virtual.col] =
\ s:get_virtual_col(line('.'), col('.')-1)
call s:set_cursor()
endfunction"}}}
function! s:print_with_redraw(is_error, lines) "{{{
let cnt = 1
for line in a:lines
if cnt != 1 ||
\ (s:is_no_echoback() && getline('$') != '')
call append('.', '')
call cursor(line('.')+1, 0)
endif
let ls = map(split(line, '\r\ze.', 1), "substitute(v:val, '\\r', '', '')")
if a:is_error
call map(ls, "v:val != '' ? ('!!!'.v:val.'!!!') : v:val")
endif
for l in ls
call setline('.', l)
sleep 1m
redraw
endfor
let cnt += 1
endfor
endfunction"}}}
function! s:print_simple(is_error, lines) "{{{
let lines = a:lines
if a:is_error
call map(lines, "v:val != '' ? ('!!!'.v:val.'!!!') : v:val")
endif
" Optimized print.
if s:is_no_echoback()
if line('$') == 1 && getline('$') == ''
call setline('.', lines[0])
else
call append('.', lines[0])
endif
call cursor(line('.')+1, 0)
call cursor(0, col('$'))
elseif line('.') != b:interactive.echoback_linenr
call setline('.', substitute(
\ getline('.') . lines[0], '[^!]\zs!\{6}\ze[^!]', '', 'g'))
endif
let lines = lines[1:]
call append('.', lines)
call cursor(line('.') + len(lines), 0)
call cursor(0, col('$'))
endfunction"}}}
function! s:set_cursor() "{{{
" Get real pos(0 origin).
let [line, col] = s:get_real_pos(
\ s:virtual.line, s:virtual.col)
call s:set_screen_pos(line, col)
" Convert to 1 origin.
let col += 1
if g:vimshell_enable_debug
echomsg 'set cursor = ' . string([line, col])
endif
" Move pos.
call cursor(line, col)
if b:interactive.type ==# 'terminal'
let b:interactive.save_cursor = getpos('.')
endif
redraw
endfunction"}}}
function! s:is_no_echoback()
return b:interactive.type ==# 'interactive'
\ && vimshell#util#is_windows()
\ && has_key(b:interactive, 'command')
\ && !get(g:vimshell_interactive_echoback_commands,
\ b:interactive.command, 0)
endfunction
function! s:init_terminal() "{{{
endfunction"}}}
function! s:output_string(string) "{{{
if s:virtual.line == b:interactive.echoback_linenr
if s:is_no_echoback()
" no echoback command.
let s:virtual.line += 1
let s:virtual.lines[s:virtual.line] = a:string
let s:virtual.col = len(a:string)
endif
return
endif
if g:vimshell_enable_debug
echomsg 'print output string = ' . string(a:string)
endif
if a:string == ''
return
endif
let string = a:string != '' && b:interactive.terminal.is_error ?
\ '!!!' . a:string . '!!!' : a:string
if b:interactive.terminal.current_character_set
\ ==# 'Line Drawing'
" Convert characters.
let string = ''
for c in split(a:string, '\zs')
let string .= has_key(s:drawing_character_table, c)?
\ s:drawing_character_table[c] : c
endfor
endif
call s:set_screen_string(s:virtual.line, s:virtual.col, string)
endfunction"}}}
function! s:sortfunc(i1, i2) "{{{
return a:i1 == a:i2 ? 0 : a:i1 > a:i2 ? 1 : -1
endfunction"}}}
function! s:scroll_up(number) "{{{
let line = b:interactive.terminal.region_bottom
let end = b:interactive.terminal.region_top - a:number
while line >= end
let s:virtual.lines[line] = has_key(s:virtual.lines, line - a:number) ?
\ s:virtual.lines[line - a:number] : getline(line - a:number)
let line -= 1
endwhile
let i = 0
while i < a:number
let s:virtual.lines[b:interactive.terminal.region_top + i] = ''
let i += 1
endwhile
endfunction"}}}
function! s:scroll_down(number) "{{{
let line = b:interactive.terminal.region_top
let end = b:interactive.terminal.region_bottom - a:number
while line <= end
let s:virtual.lines[line] = has_key(s:virtual.lines, line + a:number) ?
\ s:virtual.lines[line + a:number] : getline(line + a:number)
let line += 1
endwhile
let i = 0
while i < a:number
let s:virtual.lines[b:interactive.terminal.region_bottom - i] = ''
let i += 1
endwhile
endfunction"}}}
function! s:use_conceal() "{{{
return has('conceal')
endfunction"}}}
" Note: Real pos is 0 origin.
function! s:get_real_pos(line, col) "{{{
let current_line = get(s:virtual.lines, a:line, getline(a:line))
if a:col <= 1 && current_line !~ '\e\[[0-9;]*m'
return [a:line, 0]
endif
return s:get_col_current_line(a:line, a:col, 0)
endfunction"}}}
function! s:get_virtual_col(line, col) "{{{
let current_line = get(s:virtual.lines, a:line, getline(a:line))
if a:col <= 0 && current_line !~ '\e\[[0-9;]*m'
return [a:line, 1]
endif
return s:get_col_current_line(a:line, a:col, 1)
endfunction"}}}
function! s:get_col_current_line(line, col, is_virtual) "{{{
let current_line = get(s:virtual.lines, a:line, getline(a:line))
return [a:line, vimshell#terminal#get_col(
\ current_line, a:col, a:is_virtual)]
endfunction"}}}
function! s:get_screen_character(line, col) "{{{
let [line, col] = s:get_real_pos(a:line, a:col)
return s:virtual.lines[line][col]
endfunction"}}}
function! s:get_virtual_wcswidth(string) "{{{
return vimshell#util#wcswidth(
\ substitute(a:string, '\e\[[0-9;]*m', '', 'g'))
endfunction"}}}
function! s:set_screen_string(line, col, string) "{{{
let [line, col] = s:get_real_pos(a:line, a:col)
call s:set_screen_pos(line, col)
let current_line = s:virtual.lines[line]
let len = vimshell#util#wcswidth(a:string)
let s:virtual.lines[line] =
\ (col > 1 ? current_line[:col-2] : '')
\ . a:string
\ . current_line[col+len :]
let len2 = s:get_virtual_wcswidth(a:string)
let s:virtual.col += len2
if col < 1
let s:virtual.col += 1
endif
" let [s:virtual.line, s:virtual.col] = s:get_virtual_col(line, col+len)
if g:vimshell_enable_debug
echomsg 'current_line = ' . current_line
echomsg 'current_line[col:] = ' . current_line[col :]
echomsg '[old_virt_col, real_col, new_virt_col, string] = ' .
\ string([a:col, col, s:virtual.col, a:string])
endif
endfunction"}}}
function! s:set_screen_pos(line, col) "{{{
if a:line == ''
return
endif
if !has_key(s:virtual.lines, a:line)
let s:virtual.lines[a:line] = ''
endif
if a:col > len(s:virtual.lines[a:line])
let s:virtual.lines[a:line] .=
\ repeat(' ', a:col - len(s:virtual.lines[a:line]))
endif
endfunction"}}}
function! vimshell#terminal#get_col(line, col, is_virtual) "{{{
" is_virtual -> a:col : real col.
" not -> a:col : virtual col.
let col = 1
let real_col = 0
let current_line = a:line
if current_line !~ '\e\[[0-9;]*m'
" Optimized.
for c in split(current_line[: a:col*3], '\zs')
let real_col += len(c)
let col += vimshell#util#wcswidth(c)
let check_col = a:is_virtual ? real_col : col
if check_col > a:col
break
endif
endfor
else
let skip_cnt = 0
for c in split(current_line[real_col :], '\zs')
if skip_cnt > 0
let skip_cnt -= 1
continue
endif
if c == "\<ESC>"
\ && current_line[real_col :] =~ '^\e\[[0-9;]*m'
" Skip.
let sequence = matchstr(current_line,
\ '^\e\[[0-9;]*m', real_col)
let skip_cnt = len(sequence)-1
let real_col += len(sequence)
else
let real_col += len(c)
let col += vimshell#util#wcswidth(c)
endif
let check_col = a:is_virtual ? real_col : col
if check_col > a:col
break
endif
endfor
endif
let check_col = a:is_virtual ? real_col : col
" current_line is too short.
if check_col < a:col
if a:is_virtual
let col += a:col - real_col
else
let real_col += a:col - col
endif
endif
return (a:is_virtual ? col : real_col)
endfunction"}}}
" Escape sequence functions.
let s:escape = {}
function! s:escape.ignore(matchstr) "{{{
endfunction"}}}
" Color table. "{{{
let s:color_table = [ 0x00, 0x5F, 0x87, 0xAF, 0xD7, 0xFF ]
let s:grey_table = [
\0x08, 0x12, 0x1C, 0x26, 0x30, 0x3A, 0x44, 0x4E,
\0x58, 0x62, 0x6C, 0x76, 0x80, 0x8A, 0x94, 0x9E,
\0xA8, 0xB2, 0xBC, 0xC6, 0xD0, 0xDA, 0xE4, 0xEE
\]
let s:highlight_table = {
\ '0' : ' cterm=NONE ctermfg=NONE ctermbg=NONE gui=NONE guifg=NONE guibg=NONE',
\ '1' : ' cterm=BOLD gui=BOLD',
\ '3' : ' cterm=ITALIC gui=ITALIC',
\ '4' : ' cterm=UNDERLINE gui=UNDERLINE',
\ '7' : ' cterm=REVERSE gui=REVERSE',
\ '8' : ' ctermfg=0 ctermbg=0 guifg=#000000 guibg=#000000',
\ '9' : ' gui=UNDERCURL',
\ '21' : ' cterm=UNDERLINE gui=UNDERLINE',
\ '22' : ' gui=NONE',
\ '23' : ' gui=NONE',
\ '24' : ' gui=NONE',
\ '25' : ' gui=NONE',
\ '27' : ' gui=NONE',
\ '28' : ' ctermfg=NONE ctermbg=NONE guifg=NONE guibg=NONE',
\ '29' : ' gui=NONE',
\ '39' : ' ctermfg=NONE guifg=NONE',
\ '49' : ' ctermbg=NONE guibg=NONE',
\}"}}}
function! s:escape.highlight(matchstr) "{{{
if g:vimshell_disable_escape_highlight
\ || (b:interactive.type == 'interactive' &&
\ get(g:vimshell_interactive_monochrome_commands,
\ b:interactive.command, 0))
\ || b:interactive.terminal.is_error
return
endif
call s:output_string("\<ESC>" . a:matchstr)
" Check cached highlight.
if a:matchstr =~ '^\[0\?m$'
\ || has_key(b:interactive.terminal.syntax_names, a:matchstr)
return
endif
let highlight = ''
let highlight_list =
\ split(matchstr(a:matchstr, '^\[\zs[0-9;]\+'), ';', 1)
let cnt = 0
if empty(highlight_list)
" Default.
let highlight_list = [ 0 ]
endif
for color_code in map(highlight_list, 'str2nr(v:val)')
if has_key(s:highlight_table, color_code) "{{{
" Use table.
let highlight .= s:highlight_table[color_code]
elseif 30 <= color_code && color_code <= 37
" Foreground color.
let highlight .= printf(' ctermfg=%d guifg=%s',
\ color_code - 30, g:vimshell_escape_colors[color_code - 30])
elseif color_code == 38
if len(highlight_list) - cnt < 3
" Error.
break
endif
" Foreground 256 colors.
let color = highlight_list[cnt + 2]
if color >= 232
" Grey scale.
let gcolor = s:grey_table[(color - 232)]
let highlight .= printf(' ctermfg=%d guifg=#%02x%02x%02x',
\ color, gcolor, gcolor, gcolor)
elseif color >= 16
" RGB.
let gcolor = color - 16
let red = s:color_table[gcolor / 36]
let green = s:color_table[(gcolor % 36) / 6]
let blue = s:color_table[gcolor % 6]
let highlight .= printf(' ctermfg=%d guifg=#%02x%02x%02x',
\ color, red, green, blue)
else
let highlight .= printf(' ctermfg=%d guifg=%s',
\ color, g:vimshell_escape_colors[color])
endif
break
elseif 40 <= color_code && color_code <= 47
" Background color.
let highlight .= printf(' ctermbg=%d guibg=%s',
\ color_code - 40, g:vimshell_escape_colors[color_code - 40])
elseif color_code == 48
if len(highlight_list) - cnt < 3
" Error.
break
endif
" Background 256 colors.
let color = highlight_list[cnt + 2]
if color >= 232
" Grey scale.
let gcolor = s:grey_table[(color - 232)]
let highlight .= printf(' ctermbg=%d guibg=#%02x%02x%02x',
\ color, gcolor, gcolor, gcolor)
elseif color >= 16
" RGB.
let gcolor = color - 16
let red = s:color_table[gcolor / 36]
let green = s:color_table[(gcolor % 36) / 6]
let blue = s:color_table[gcolor % 6]
let highlight .= printf(' ctermbg=%d guibg=#%02x%02x%02x',
\ color, red, green, blue)
else
let highlight .= printf(' ctermbg=%d guibg=%s',
\ color, g:vimshell_escape_colors[color])
endif
break
elseif 90 <= color_code && color_code <= 97
" Foreground color(high intensity).
let highlight .= printf(' ctermfg=%d guifg=%s',
\ color_code - 82, g:vimshell_escape_colors[color_code - 82])
elseif 100 <= color_code && color_code <= 107
" Background color(high intensity).
let highlight .= printf(' ctermbg=%d guibg=%s',
\ color_code - 92, g:vimshell_escape_colors[color_code - 92])
endif"}}}
let cnt += 1
endfor
if highlight == ''
return
endif
let [line, col] = s:get_real_pos(s:virtual.line, s:virtual.col)
let col += 1
let syntax_name = 'EscapeSequenceAt_' . bufnr('%')
\ . '_' . line . '_' . col
let syntax_command = printf('start=+\e\%s+ end=+\ze\e[\[0*m]\|$+ ' .
\ 'contains=vimshellEscapeSequenceConceal oneline', a:matchstr)
execute 'syntax region' syntax_name syntax_command
execute 'highlight' syntax_name highlight
let b:interactive.terminal.syntax_names[a:matchstr] = syntax_name
" Note: When use concealed text, wrapped text is wrong...
setlocal nowrap
endfunction"}}}
function! s:escape.move_cursor(matchstr) "{{{
let params = matchstr(a:matchstr, '[0-9;]\+')
if params == ''
let args = [1, 1]
else
let args = split(params, ';', 1)
endif
let s:virtual.line = get(args, 0, 1)
let s:virtual.col = get(args, 1, 1)
if s:virtual.line !~ '^\d\+$' || s:virtual.col !~ '^\d\+$'
call vimshell#echo_error(
\ 'Move cursor escape sequence format error: str = "'
\ . a:matchstr . '"')
return
endif
let [line, col] = s:get_real_pos(s:virtual.line, s:virtual.col)
call s:set_screen_pos(line, col)
endfunction"}}}
function! s:escape.move_cursor_column(matchstr) "{{{
let n = matchstr(a:matchstr, '\d\+')
if n == ''
let n = 1
endif
let s:virtual.col = n
let [line, col] = s:get_real_pos(s:virtual.line, s:virtual.col)
call s:set_screen_pos(line, col)
endfunction"}}}
function! s:escape.setup_scrolling_region(matchstr) "{{{
let args = split(matchstr(a:matchstr, '[0-9;]\+'), ';', 1)
let top = empty(args) ? 0 : args[0]
let bottom = empty(args) ? 0 : args[1]
if top == 1
if (vimshell#util#is_windows() && bottom == 25)
\|| (!vimshell#util#is_windows() && bottom == b:interactive.height)
" Clear scrolling region.
let [top, bottom] = [0, 0]
endif
endif
let b:interactive.terminal.region_top = top
let b:interactive.terminal.region_bottom = bottom
endfunction"}}}
function! s:escape.clear_line(matchstr) "{{{
let [line, col] = s:get_real_pos(s:virtual.line, s:virtual.col)
call s:set_screen_pos(line, col)
let param = matchstr(a:matchstr, '\d\+')
if param == '' || param == '0'
" Clear right line.
let s:virtual.lines[line] = (col <= 0) ? '' : s:virtual.lines[line][ : col - 1]
elseif param == '1'
" Clear left line.
let s:virtual.lines[line] = s:virtual.lines[line][col :]
let s:virtual.col = 1
elseif param == '2'
" Clear whole line.
let s:virtual.lines[line] = ''
let s:virtual.col = 1
endif
endfunction"}}}
function! s:escape.clear_screen(matchstr) "{{{
let param = matchstr(a:matchstr, '\d\+')
if param == '' || param == '0'
" Clear screen from cursor down.
call s:escape.clear_line(0)
for linenr in filter(keys(s:virtual.lines), 'v:val > s:virtual.line')
" Clear line.
let s:virtual.lines[linenr] = ''
endfor
elseif param == '1'
" Clear screen from cursor up.
call s:escape.clear_line(1)
for linenr in filter(keys(s:virtual.lines), 'v:val < s:virtual.line')
" Clear line.
let s:virtual.lines[linenr] = ''
endfor
elseif param == '2'
" Clear entire screen.
let reg = @x
1,$ delete x
let @x = reg
let s:virtual.lines = {}
let s:virtual.line = 1
let s:virtual.col = 1
call vimshell#terminal#clear_highlight()
endif
endfunction"}}}
function! s:escape.move_up(matchstr) "{{{
let n = matchstr(a:matchstr, '\d\+')
if n == ''
let n = 1
endif
if b:interactive.terminal.region_top <= s:virtual.line
\ && s:virtual.line <= b:interactive.terminal.region_bottom
" Scroll up n lines.
call s:scroll_up(n)
else
let s:virtual.line -= n
if s:virtual.line < 1
let s:virtual.line = 1
endif
endif
endfunction"}}}
function! s:escape.move_down(matchstr) "{{{
let n = matchstr(a:matchstr, '\d\+')
if n == ''
let n = 1
endif
if b:interactive.terminal.region_top <= s:virtual.line
\ && s:virtual.line <= b:interactive.terminal.region_bottom
" Scroll down n lines.
call s:scroll_down(n)
else
let s:virtual.line += n
endif
endfunction"}}}
function! s:escape.move_right(matchstr) "{{{
let n = matchstr(a:matchstr, '\d\+')
if n == ''
let n = 1
endif
let s:virtual.col += n
endfunction"}}}
function! s:escape.move_left(matchstr) "{{{
let n = matchstr(a:matchstr, '\d\+')
if n == ''
let n = 1
endif
let s:virtual.col -= n
if s:virtual.col < 1
let s:virtual.col = 1
endif
endfunction"}}}
function! s:escape.move_down_head1(matchstr) "{{{
call s:control.newline()
endfunction"}}}
function! s:escape.move_down_head(matchstr) "{{{
call s:scroll_down(a:matchstr)
let s:virtual.col = 1
endfunction"}}}
function! s:escape.move_up_head(matchstr) "{{{
let param = matchstr(a:matchstr, '\d\+')
if param != '0'
call s:scroll_up(a:matchstr)
endif
let s:virtual.col = 1
endfunction"}}}
function! s:escape.scroll_up1(matchstr) "{{{
call s:scroll_up(1)
endfunction"}}}
function! s:escape.scroll_down1(matchstr) "{{{
call s:scroll_down(1)
endfunction"}}}
function! s:escape.move_col(matchstr) "{{{
let num = matchstr(a:matchstr, '\d\+')
let s:virtual.col = num
if s:virtual.col < 1
let s:virtual.col = 1
endif
endfunction"}}}
function! s:escape.save_pos(matchstr) "{{{
let b:interactive.terminal.save_pos = [s:virtual.line, s:virtual.col]
endfunction"}}}
function! s:escape.restore_pos(matchstr) "{{{
let [s:virtual.line, s:virtual.col] = b:interactive.terminal.save_pos
endfunction"}}}
function! s:escape.change_title(matchstr) "{{{
let title = matchstr(a:matchstr, '^k\zs.\{-}\ze\e\\')
if empty(title)
let title = matchstr(a:matchstr, '^][02];\zs.\{-}\ze'."\<C-g>")
endif
let &titlestring = title
let b:interactive.terminal.titlestring = title
endfunction"}}}
function! s:escape.print_control_sequence(matchstr) "{{{
call s:output_string("\<ESC>")
endfunction"}}}
function! s:escape.change_cursor_shape(matchstr) "{{{
if !exists('+guicursor') || b:interactive.type !=# 'terminal'
return
endif
let arg = matchstr(a:matchstr, '\d\+')
if arg == 0 || arg == 1
set guicursor=i:block-Cursor/lCursor
elseif arg == 2
set guicursor=i:block-Cursor/lCursor-blinkon0
elseif arg == 3
set guicursor=i:hor20-Cursor/lCursor
elseif arg == 4
set guicursor=i:hor20-Cursor/lCursor-blinkon0
endif
endfunction"}}}
function! s:escape.change_character_set(matchstr) "{{{
if a:matchstr =~ '^[()]0'
" Line drawing set.
if a:matchstr =~ '^('
let b:interactive.terminal.standard_character_set = 'Line Drawing'
else
let b:interactive.terminal.alternate_character_set = 'Line Drawing'
endif
endif
endfunction"}}}
function! s:escape.reset(matchstr) "{{{
call vimshell#terminal#init()
endfunction"}}}
function! s:escape.delete_chars(matchstr) "{{{
let n = matchstr(a:matchstr, '\d\+')
if n == ''
let n = 1
endif
call s:escape.move_left(n)
call s:output_string(repeat(' ', n))
endfunction"}}}
" Control sequence functions.
let s:control = {}
function! s:control.ignore() "{{{
endfunction"}}}
function! s:control.newline() "{{{
let s:virtual.col = 1
if b:interactive.type !=# 'terminal'
" New line.
call append(s:virtual.line, '')
endif
call s:escape.move_down(1)
endfunction"}}}
function! s:control.delete_backword_char() "{{{
if s:virtual.line == b:interactive.echoback_linenr
return
endif
if s:virtual.col == 1
" Wrap above line.
if s:virtual.line > 1
let s:virtual.line -= 1
endif
if !has_key(s:virtual.lines, s:virtual.line)
let s:virtual.lines[s:virtual.line] = getline(s:virtual.line)
endif
let [line, s:virtual.col] = s:get_virtual_col(s:virtual.line, len(s:virtual.lines[s:virtual.line]))
return
endif
call s:escape.move_left(1)
endfunction"}}}
function! s:control.delete_multi_backword_char() "{{{
if s:virtual.line == b:interactive.echoback_linenr
return
endif
if s:virtual.col == 1
" Wrap above line.
if s:virtual.line > 1
let s:virtual.line -= 1
endif
if !has_key(s:virtual.lines, s:virtual.line)
let s:virtual.lines[s:virtual.line] = getline(s:virtual.line)
endif