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" FILE: plugin/conque_term.vim {{{
"
" AUTHOR: Nico Raffo <nicoraffo@gmail.com>
" MODIFIED: 2010-05-27
" VERSION: 1.1, for Vim 7.0
" LICENSE:
" Conque - pty interaction in Vim
" Copyright (C) 2009-2010 Nico Raffo
"
" 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.
" }}}


" **********************************************************************************************************
" **** VIM FUNCTIONS ***************************************************************************************
" **********************************************************************************************************

" launch conque
function! conque_term#open(...) "{{{
    let command = get(a:000, 0, '')
    let hooks = get(a:000, 1, [])

" bare minimum validation
    if has('python') != 1
        echohl WarningMsg | echomsg "Conque requires the Python interface to be installed" | echohl None
        return 0
    endif
    if empty(command)
        echohl WarningMsg | echomsg "No command found" | echohl None
        return 0
    else
        let l:cargs = split(command, '\s')
        if !executable(l:cargs[0])
            echohl WarningMsg | echomsg "Not an executable: " . l:cargs[0] | echohl None
            return 0
        endif
    endif

" set buffer window options
    let g:ConqueTerm_BufName = substitute(command, ' ', '\\ ', 'g') . "\\ -\\ " . g:ConqueTerm_Idx
    call conque_term#set_buffer_settings(command, hooks)
    let b:ConqueTerm_Var = 'ConqueTerm_' . g:ConqueTerm_Idx
    let g:ConqueTerm_Var = 'ConqueTerm_' . g:ConqueTerm_Idx
    let g:ConqueTerm_Idx += 1

" open command
    try
        let l:config = '{"color":' . string(g:ConqueTerm_Color) . ',"TERM":"' . g:ConqueTerm_TERM . '"}'
        execute 'python ' . b:ConqueTerm_Var . ' = Conque()'
        execute "python " . b:ConqueTerm_Var . ".open('" . conque_term#python_escape(command) . "', " . l:config . ")"
    catch
        echohl WarningMsg | echomsg "Unable to open command: " . command | echohl None
        return 0
    endtry

" set buffer mappings and auto commands
    call conque_term#set_mappings('start')

    startinsert!
    return 1
endfunction "}}}

" set buffer options
function! conque_term#set_buffer_settings(command, pre_hooks) "{{{

" optional hooks to execute, e.g. 'split'
    for h in a:pre_hooks
        sil exe h
    endfor
    sil exe "edit " . g:ConqueTerm_BufName

" buffer settings
    setlocal nocompatible " conque won't work in compatible mode
    setlocal nopaste " conque won't work in paste mode
    setlocal buftype=nofile " this buffer is not a file, you can't save it
    setlocal nonumber " hide line numbers
    setlocal foldcolumn=0 " reasonable left margin
    setlocal nowrap " default to no wrap (esp with MySQL)
    setlocal noswapfile " don't bother creating a .swp file
    setlocal updatetime=50 " trigger cursorhold event after 50ms / XXX - global
    setlocal scrolloff=0 " don't use buffer lines. it makes the 'clear' command not work as expected
    setlocal sidescrolloff=0 " don't use buffer lines. it makes the 'clear' command not work as expected
    setlocal sidescroll=1 " don't use buffer lines. it makes the 'clear' command not work as expected
    setlocal foldmethod=manual " don't fold on {{{}}} and stuff
    setlocal bufhidden=hide " when buffer is no longer displayed, don't wipe it out
    setfiletype conque_term " useful
    sil exe "setlocal syntax=" . g:ConqueTerm_Syntax

endfunction " }}}

" set key mappings and auto commands
function! conque_term#set_mappings(action) "{{{

" set action
    if a:action == 'toggle'
        if exists('b:conque_on') && b:conque_on == 1
            let l:action = 'stop'
            echohl WarningMsg | echomsg "Terminal is paused" | echohl None
        else
            let l:action = 'start'
            echohl WarningMsg | echomsg "Terminal is resumed" | echohl None
        endif
    else
        let l:action = a:action
    endif

" if mappings are being removed, add 'un'
    let map_modifier = 'nore'
    if l:action == 'stop'
        let map_modifier = 'un'
    endif

" remove all auto commands
    if l:action == 'stop'
        execute 'autocmd! ' . b:ConqueTerm_Var

    else
        execute 'augroup ' . b:ConqueTerm_Var

" handle unexpected closing of shell, passes HUP to parent and all child processes
        execute 'autocmd ' . b:ConqueTerm_Var . ' BufUnload <buffer> python ' . b:ConqueTerm_Var . '.proc.signal(1)'

" check for resized/scrolled buffer when entering buffer
        execute 'autocmd ' . b:ConqueTerm_Var . ' BufEnter <buffer> python ' . b:ConqueTerm_Var . '.update_window_size()'
        execute 'autocmd ' . b:ConqueTerm_Var . ' VimResized python ' . b:ConqueTerm_Var . '.update_window_size()'

" set/reset updatetime on entering/exiting buffer
        autocmd BufEnter <buffer> set updatetime=50
        autocmd BufLeave <buffer> set updatetime=2000

" check for resized/scrolled buffer when entering insert mode
" XXX - messed up since we enter insert mode at each updatetime
"execute 'autocmd InsertEnter <buffer> python ' . b:ConqueTerm_Var . '.screen.align()'

" read more output when this isn't the current buffer
        if g:ConqueTerm_ReadUnfocused == 1
            execute 'autocmd ' . b:ConqueTerm_Var . ' CursorHold * call conque_term#read_all()'
        endif

" poll for more output
        sil execute 'autocmd ' . b:ConqueTerm_Var . ' CursorHoldI <buffer> python ' . b:ConqueTerm_Var . '.auto_read()'
    endif

" use F22 key to get more input
    if l:action == 'start'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <expr> <F22> "\<left>\<right>"'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <expr> <F23> "\<right>\<left>"'
    else
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <expr> <F22>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <expr> <F23>'
    endif

" map ASCII 1-31
    for c in range(1, 31)
" <Esc>
        if c == 27
            continue
        endif
        if l:action == 'start'
            sil exe 'i' . map_modifier . 'map <silent> <buffer> <C-' . nr2char(64 + c) . '> <C-o>:python ' . b:ConqueTerm_Var . '.write(chr(' . c . '))<CR>'
        else
            sil exe 'i' . map_modifier . 'map <silent> <buffer> <C-' . nr2char(64 + c) . '>'
        endif
    endfor
    if l:action == 'start'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> <C-c> <C-o>:python ' . b:ConqueTerm_Var . '.write(chr(3))<CR>'
    else
        sil exe 'n' . map_modifier . 'map <silent> <buffer> <C-c>'
    endif

" leave insert mode
    if !exists('g:ConqueTerm_EscKey') || g:ConqueTerm_EscKey == '<Esc>'
" use <Esc><Esc> to send <Esc> to terminal
        if l:action == 'start'
            sil exe 'i' . map_modifier . 'map <silent> <buffer> <Esc><Esc> <C-o>:python ' . b:ConqueTerm_Var . '.write(chr(27))<CR>'
        else
            sil exe 'i' . map_modifier . 'map <silent> <buffer> <Esc><Esc>'
        endif
    else
" use <Esc> to send <Esc> to terminal
        if l:action == 'start'
            sil exe 'i' . map_modifier . 'map <silent> <buffer> ' . g:ConqueTerm_EscKey . ' <Esc>'
            sil exe 'i' . map_modifier . 'map <silent> <buffer> <Esc> <C-o>:python ' . b:ConqueTerm_Var . '.write(chr(27))<CR>'
        else
            sil exe 'i' . map_modifier . 'map <silent> <buffer> ' . g:ConqueTerm_EscKey
            sil exe 'i' . map_modifier . 'map <silent> <buffer> <Esc>'
        endif
    endif

" Map <C-w> in insert mode
    if exists('g:ConqueTerm_CWInsert') && g:ConqueTerm_CWInsert == 1
        inoremap <silent> <buffer> <C-w>j <Esc><C-w>j
        inoremap <silent> <buffer> <C-w>k <Esc><C-w>k
        inoremap <silent> <buffer> <C-w>h <Esc><C-w>h
        inoremap <silent> <buffer> <C-w>l <Esc><C-w>l
        inoremap <silent> <buffer> <C-w>w <Esc><C-w>w
    endif

" map ASCII 33-127
    for i in range(33, 127)
" <Bar>
        if i == 124
            if l:action == 'start'
                sil exe "i" . map_modifier . "map <silent> <buffer> <Bar> <C-o>:python " . b:ConqueTerm_Var . ".write(chr(124))<CR>"
            else
                sil exe "i" . map_modifier . "map <silent> <buffer> <Bar>"
            endif
            continue
        endif
        if l:action == 'start'
            sil exe "i" . map_modifier . "map <silent> <buffer> " . nr2char(i) . " <C-o>:python " . b:ConqueTerm_Var . ".write(chr(" . i . "))<CR>"
        else
            sil exe "i" . map_modifier . "map <silent> <buffer> " . nr2char(i)
        endif
    endfor

" map ASCII 128-255
    for i in range(128, 255)
        if l:action == 'start'
            sil exe "i" . map_modifier . "map <silent> <buffer> " . nr2char(i) . " <C-o>:python " . b:ConqueTerm_Var . ".write('" . nr2char(i) . "')<CR>"
        else
            sil exe "i" . map_modifier . "map <silent> <buffer> " . nr2char(i)
        endif
    endfor

" Special cases
    if l:action == 'start'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <BS> <C-o>:python ' . b:ConqueTerm_Var . '.write(u"\u0008")<CR>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Space> <C-o>:python ' . b:ConqueTerm_Var . '.write(" ")<CR>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Up> <C-o>:python ' . b:ConqueTerm_Var . '.write(u"\u001b[A")<CR>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Down> <C-o>:python ' . b:ConqueTerm_Var . '.write(u"\u001b[B")<CR>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Right> <C-o>:python ' . b:ConqueTerm_Var . '.write(u"\u001b[C")<CR>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Left> <C-o>:python ' . b:ConqueTerm_Var . '.write(u"\u001b[D")<CR>'
    else
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <BS>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Space>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Up>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Down>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Right>'
        sil exe 'i' . map_modifier . 'map <silent> <buffer> <Left>'
    endif

" send selected text into conque
    if l:action == 'start'
        sil exe 'v' . map_modifier . 'map <silent> <F9> :<C-u>call conque_term#send_selected(visualmode())<CR>'
    else
        sil exe 'v' . map_modifier . 'map <silent> <F9>'
    endif

" remap paste keys
    if l:action == 'start'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> p :python ' . b:ConqueTerm_Var . '.write(vim.eval("@@"))<CR>a'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> P :python ' . b:ConqueTerm_Var . '.write(vim.eval("@@"))<CR>a'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> ]p :python ' . b:ConqueTerm_Var . '.write(vim.eval("@@"))<CR>a'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> [p :python ' . b:ConqueTerm_Var . '.write(vim.eval("@@"))<CR>a'
    else
        sil exe 'n' . map_modifier . 'map <silent> <buffer> p'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> P'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> ]p'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> [p'
    endif
    if has('gui_running')
        if l:action == 'start'
            sil exe 'i' . map_modifier . 'map <buffer> <S-Insert> <Esc>:<C-u>python ' . b:ConqueTerm_Var . ".write(vim.eval('@+'))<CR>a"
        else
            sil exe 'i' . map_modifier . 'map <buffer> <S-Insert>'
        endif
    endif

" disable other normal mode keys which insert text
    if l:action == 'start'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> r :echo "Replace mode disabled in shell."<CR>'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> R :echo "Replace mode disabled in shell."<CR>'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> c :echo "Change mode disabled in shell."<CR>'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> C :echo "Change mode disabled in shell."<CR>'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> s :echo "Change mode disabled in shell."<CR>'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> S :echo "Change mode disabled in shell."<CR>'
    else
        sil exe 'n' . map_modifier . 'map <silent> <buffer> r'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> R'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> c'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> C'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> s'
        sil exe 'n' . map_modifier . 'map <silent> <buffer> S'
    endif

" set conque as on or off
    if l:action == 'start'
        let b:conque_on = 1
    else
        let b:conque_on = 0
    endif

" map command to start stop the shell
    if a:action == 'start'
        nnoremap <F5> :<C-u>call conque_term#set_mappings('toggle')<CR>
    endif

endfunction " }}}


" send selected text from another buffer
function! conque_term#send_selected(type) "{{{
    let reg_save = @@

" save user's sb settings
    let sb_save = &switchbuf
    set switchbuf=usetab

" yank current selection
    sil exe "normal! `<" . a:type . "`>y"

" format yanked text
    let @@ = substitute(@@, '^[\r\n]*', '', '')
    let @@ = substitute(@@, '[\r\n]*$', '', '')

" execute yanked text
    sil exe ":sb " . g:ConqueTerm_BufName
    sil exe 'python ' . g:ConqueTerm_Var . '.paste_selection()'

" reset original values
    let @@ = reg_save
    sil exe 'set switchbuf=' . sb_save

" scroll buffer left
    startinsert!
    normal 0zH
endfunction "}}}

" read from all known conque buffers
function! conque_term#read_all() "{{{
" don't run this if we're in a conque buffer
    if exists('b:ConqueTerm_Var')
        return
    endif

    try
        for i in range(1, g:ConqueTerm_Idx - 1)
            execute 'python ConqueTerm_' . string(i) . '.read(1)'
        endfor
    catch
" probably a deleted buffer
    endtry

" restart updatetime
    call feedkeys("f\e")
endfunction "}}}

" util function to add enough \s to pass a string to python
function! conque_term#python_escape(input) "{{{
    let l:cleaned = a:input
    let l:cleaned = substitute(l:cleaned, '\\', '\\\\', 'g')
    let l:cleaned = substitute(l:cleaned, '\n', '\\n', 'g')
    let l:cleaned = substitute(l:cleaned, '\r', '\\r', 'g')
    let l:cleaned = substitute(l:cleaned, "'", "\\\\'", 'g')
    return l:cleaned
endfunction "}}}

" **********************************************************************************************************
" **** PYTHON **********************************************************************************************
" **********************************************************************************************************

if has('python')

python << EOF

import vim, re, time, math

# CONFIG CONSTANTS {{{

CONQUE_CTL = {
     7:'bel', # bell
     8:'bs', # backspace
     9:'tab', # tab
    10:'nl', # new line
    13:'cr' # carriage return
}
# 11 : 'vt', # vertical tab
# 12 : 'ff', # form feed
# 14 : 'so', # shift out
# 15 : 'si' # shift in

# Escape sequences
CONQUE_ESCAPE = {
    'm':'font',
    'J':'clear_screen',
    'K':'clear_line',
    '@':'add_spaces',
    'A':'cursor_up',
    'B':'cursor_down',
    'C':'cursor_right',
    'D':'cursor_left',
    'G':'cursor_to_column',
    'H':'cursor',
    'P':'delete_chars',
    'f':'cursor',
    'g':'tab_clear',
    'r':'set_coords',
    'h':'set',
    'l':'reset'
}
# 'L':'insert_lines',
# 'M':'delete_lines',
# 'd':'cusor_vpos',

# Alternate escape sequences, no [
CONQUE_ESCAPE_PLAIN = {
    'D':'scroll_up',
    'E':'next_line',
    'H':'set_tab',
    'M':'scroll_down'
}
# 'N':'single_shift_2',
# 'O':'single_shift_3',
# '=':'alternate_keypad',
# '>':'numeric_keypad',
# '7':'save_cursor',
# '8':'restore_cursor',

# Uber alternate escape sequences, with # or ?
CONQUE_ESCAPE_QUESTION = {
    '1h':'new_line_mode',
    '3h':'132_cols',
    '4h':'smooth_scrolling',
    '5h':'reverse_video',
    '6h':'relative_origin',
    '7h':'set_auto_wrap',
    '8h':'set_auto_repeat',
    '9h':'set_interlacing_mode',
    '1l':'set_cursor_key',
    '2l':'set_vt52',
    '3l':'80_cols',
    '4l':'set_jump_scrolling',
    '5l':'normal_video',
    '6l':'absolute_origin',
    '7l':'reset_auto_wrap',
    '8l':'reset_auto_repeat',
    '9l':'reset_interlacing_mode'
}

CONQUE_ESCAPE_HASH = {
    '8':'screen_alignment_test'
}
# '3':'double_height_top',
# '4':'double_height_bottom',
# '5':'single_height_single_width',
# '6':'single_height_double_width',

# Font codes {{{
CONQUE_FONT = {
    0: {'description':'Normal (default)', 'attributes': {'cterm':'NONE','ctermfg':'NONE','ctermbg':'NONE','gui':'NONE','guifg':'NONE','guibg':'NONE'}, 'normal':True},
    1: {'description':'Bold', 'attributes': {'cterm':'BOLD','gui':'BOLD'}, 'normal':False},
    4: {'description':'Underlined', 'attributes': {'cterm':'UNDERLINE','gui':'UNDERLINE'}, 'normal':False},
    5: {'description':'Blink (appears as Bold)', 'attributes': {'cterm':'BOLD','gui':'BOLD'}, 'normal':False},
    7: {'description':'Inverse', 'attributes': {'cterm':'REVERSE','gui':'REVERSE'}, 'normal':False},
    8: {'description':'Invisible (hidden)', 'attributes': {'ctermfg':'0','ctermbg':'0','guifg':'#000000','guibg':'#000000'}, 'normal':False},
    22: {'description':'Normal (neither bold nor faint)', 'attributes': {'cterm':'NONE','gui':'NONE'}, 'normal':True},
    24: {'description':'Not underlined', 'attributes': {'cterm':'NONE','gui':'NONE'}, 'normal':True},
    25: {'description':'Steady (not blinking)', 'attributes': {'cterm':'NONE','gui':'NONE'}, 'normal':True},
    27: {'description':'Positive (not inverse)', 'attributes': {'cterm':'NONE','gui':'NONE'}, 'normal':True},
    28: {'description':'Visible (not hidden)', 'attributes': {'ctermfg':'NONE','ctermbg':'NONE','guifg':'NONE','guibg':'NONE'}, 'normal':True},
    30: {'description':'Set foreground color to Black', 'attributes': {'ctermfg':'16','guifg':'#000000'}, 'normal':False},
    31: {'description':'Set foreground color to Red', 'attributes': {'ctermfg':'1','guifg':'#ff0000'}, 'normal':False},
    32: {'description':'Set foreground color to Green', 'attributes': {'ctermfg':'2','guifg':'#00ff00'}, 'normal':False},
    33: {'description':'Set foreground color to Yellow', 'attributes': {'ctermfg':'3','guifg':'#ffff00'}, 'normal':False},
    34: {'description':'Set foreground color to Blue', 'attributes': {'ctermfg':'4','guifg':'#0000ff'}, 'normal':False},
    35: {'description':'Set foreground color to Magenta', 'attributes': {'ctermfg':'5','guifg':'#990099'}, 'normal':False},
    36: {'description':'Set foreground color to Cyan', 'attributes': {'ctermfg':'6','guifg':'#009999'}, 'normal':False},
    37: {'description':'Set foreground color to White', 'attributes': {'ctermfg':'7','guifg':'#ffffff'}, 'normal':False},
    39: {'description':'Set foreground color to default (original)', 'attributes': {'ctermfg':'NONE','guifg':'NONE'}, 'normal':True},
    40: {'description':'Set background color to Black', 'attributes': {'ctermbg':'16','guibg':'#000000'}, 'normal':False},
    41: {'description':'Set background color to Red', 'attributes': {'ctermbg':'1','guibg':'#ff0000'}, 'normal':False},
    42: {'description':'Set background color to Green', 'attributes': {'ctermbg':'2','guibg':'#00ff00'}, 'normal':False},
    43: {'description':'Set background color to Yellow', 'attributes': {'ctermbg':'3','guibg':'#ffff00'}, 'normal':False},
    44: {'description':'Set background color to Blue', 'attributes': {'ctermbg':'4','guibg':'#0000ff'}, 'normal':False},
    45: {'description':'Set background color to Magenta', 'attributes': {'ctermbg':'5','guibg':'#990099'}, 'normal':False},
    46: {'description':'Set background color to Cyan', 'attributes': {'ctermbg':'6','guibg':'#009999'}, 'normal':False},
    47: {'description':'Set background color to White', 'attributes': {'ctermbg':'7','guibg':'#ffffff'}, 'normal':False},
    49: {'description':'Set background color to default (original).', 'attributes': {'ctermbg':'NONE','guibg':'NONE'}, 'normal':True},
    90: {'description':'Set foreground color to Black', 'attributes': {'ctermfg':'8','guifg':'#000000'}, 'normal':False},
    91: {'description':'Set foreground color to Red', 'attributes': {'ctermfg':'9','guifg':'#ff0000'}, 'normal':False},
    92: {'description':'Set foreground color to Green', 'attributes': {'ctermfg':'10','guifg':'#00ff00'}, 'normal':False},
    93: {'description':'Set foreground color to Yellow', 'attributes': {'ctermfg':'11','guifg':'#ffff00'}, 'normal':False},
    94: {'description':'Set foreground color to Blue', 'attributes': {'ctermfg':'12','guifg':'#0000ff'}, 'normal':False},
    95: {'description':'Set foreground color to Magenta', 'attributes': {'ctermfg':'13','guifg':'#990099'}, 'normal':False},
    96: {'description':'Set foreground color to Cyan', 'attributes': {'ctermfg':'14','guifg':'#009999'}, 'normal':False},
    97: {'description':'Set foreground color to White', 'attributes': {'ctermfg':'15','guifg':'#ffffff'}, 'normal':False},
    100: {'description':'Set background color to Black', 'attributes': {'ctermbg':'8','guibg':'#000000'}, 'normal':False},
    101: {'description':'Set background color to Red', 'attributes': {'ctermbg':'9','guibg':'#ff0000'}, 'normal':False},
    102: {'description':'Set background color to Green', 'attributes': {'ctermbg':'10','guibg':'#00ff00'}, 'normal':False},
    103: {'description':'Set background color to Yellow', 'attributes': {'ctermbg':'11','guibg':'#ffff00'}, 'normal':False},
    104: {'description':'Set background color to Blue', 'attributes': {'ctermbg':'12','guibg':'#0000ff'}, 'normal':False},
    105: {'description':'Set background color to Magenta', 'attributes': {'ctermbg':'13','guibg':'#990099'}, 'normal':False},
    106: {'description':'Set background color to Cyan', 'attributes': {'ctermbg':'14','guibg':'#009999'}, 'normal':False},
    107: {'description':'Set background color to White', 'attributes': {'ctermbg':'15','guibg':'#ffffff'}, 'normal':False}
}
# }}}

# regular expression matching (almost) all control sequences
CONQUE_SEQ_REGEX = re.compile(ur"(\u001b\[?\??#?[0-9;]*[a-zA-Z@]|\u001b\][0-9];.*?\u0007|[\u0007-\u000f])", re.UNICODE)
CONQUE_SEQ_REGEX_CTL = re.compile(ur"^[\u0007-\u000f]$", re.UNICODE)
CONQUE_SEQ_REGEX_CSI = re.compile(ur"^\u001b\[", re.UNICODE)
CONQUE_SEQ_REGEX_TITLE = re.compile(ur"^\u001b\]", re.UNICODE)
CONQUE_SEQ_REGEX_HASH = re.compile(ur"^\u001b#", re.UNICODE)
CONQUE_SEQ_REGEX_ESC = re.compile(ur"^\u001b", re.UNICODE)

# match table output
CONQUE_TABLE_OUTPUT = re.compile("^\s*\|\s.*\s\|\s*$|^\s*\+[=+-]+\+\s*$")

# }}}

###################################################################################################
class Conque:

    # CLASS PROPERTIES {{{

    # screen object
    screen = None

    # subprocess object
    proc = None

    # terminal dimensions and scrolling region
    columns = 80 # same as $COLUMNS
    lines = 24 # same as $LINES
    working_columns = 80 # can be changed by CSI ? 3 l/h
    working_lines = 24 # can be changed by CSI r

    # top/bottom of the scroll region
    top = 1 # relative to top of screen
    bottom = 24 # relative to top of screen

    # cursor position
    l = 1 # current cursor line
    c = 1 # current cursor column

    # autowrap mode
    autowrap = True

    # absolute coordinate mode
    absolute_coords = True

    # tabstop positions
    tabstops = []

    # enable colors
    enable_colors = True

    # color changes
    color_changes = {}

    # color history
    color_history = {}

    # don't wrap table output
    unwrap_tables = True

    # wrap CUF/CUB around line breaks
    wrap_cursor = False

    # }}}

    # constructor
    def __init__(self): # {{{
        self.screen = ConqueScreen()
        # }}}

    # start program and initialize this instance
    def open(self, command, options): # {{{

        # int vars
        self.columns = vim.current.window.width
        self.lines = vim.current.window.height
        self.working_columns = vim.current.window.width
        self.working_lines = vim.current.window.height
        self.bottom = vim.current.window.height

        # init color
        self.enable_colors = options['color']

        # init tabstops
        self.init_tabstops()

        # open command
        self.proc = ConqueSubprocess()
        self.proc.open(command, { 'TERM' : options['TERM'], 'CONQUE' : '1', 'LINES' : str(self.lines), 'COLUMNS' : str(self.columns)})
        # }}}

    # write to pty
    def write(self, input): # {{{


        # check if window size has changed
        self.update_window_size()

        # write and read
        self.proc.write(input)
        self.read(1)
        # }}}

    # read from pty, and update buffer
    def read(self, timeout = 1): # {{{
        # read from subprocess
        output = self.proc.read(timeout)
        # and strip null chars
        output = output.replace(chr(0), '')

        if output == '':
            return





        chunks = CONQUE_SEQ_REGEX.split(output)





        # don't go through all the csi regex if length is one (no matches)
        if len(chunks) == 1:

            self.plain_text(chunks[0])

        else:
            for s in chunks:
                if s == '':
                    continue






                # Check for control character match {{{
                if CONQUE_SEQ_REGEX_CTL.match(s[0]):

                    nr = ord(s[0])
                    if nr in CONQUE_CTL:
                        getattr(self, 'ctl_' + CONQUE_CTL[nr])()
                    else:

                        pass
                    # }}}

                # check for escape sequence match {{{
                elif CONQUE_SEQ_REGEX_CSI.match(s):

                    if s[-1] in CONQUE_ESCAPE:
                        csi = self.parse_csi(s[2:])

                        getattr(self, 'csi_' + CONQUE_ESCAPE[s[-1]])(csi)
                    else:

                        pass
                    # }}}
        
                # check for title match {{{
                elif CONQUE_SEQ_REGEX_TITLE.match(s):

                    self.change_title(s[2], s[4:-1])
                    # }}}
        
                # check for hash match {{{
                elif CONQUE_SEQ_REGEX_HASH.match(s):

                    if s[-1] in CONQUE_ESCAPE_HASH:
                        getattr(self, 'hash_' + CONQUE_ESCAPE_HASH[s[-1]])()
                    else:

                        pass
                    # }}}
                
                # check for other escape match {{{
                elif CONQUE_SEQ_REGEX_ESC.match(s):

                    if s[-1] in CONQUE_ESCAPE_PLAIN:
                        getattr(self, 'esc_' + CONQUE_ESCAPE_PLAIN[s[-1]])()
                    else:

                        pass
                    # }}}
                
                # else process plain text {{{
                else:
                    self.plain_text(s)
                    # }}}

        # set cursor position
        self.screen.set_cursor(self.l, self.c)

        vim.command('redraw')


    # }}}

    # for polling
    def auto_read(self): # {{{
        self.read(1)
        if self.c == 1:
            vim.command('call feedkeys("\<F23>", "t")')
        else:
            vim.command('call feedkeys("\<F22>", "t")')
        self.screen.set_cursor(self.l, self.c)
    # }}}

    ###############################################################################################
    # Plain text # {{{

    def plain_text(self, input):

        current_line = self.screen[self.l]

        if len(current_line) < self.working_columns:
            current_line = current_line + ' ' * (self.c - len(current_line))

        # if line is wider than screen
        if self.c + len(input) - 1 > self.working_columns:
            # Table formatting hack
            if self.unwrap_tables and CONQUE_TABLE_OUTPUT.match(input):
                self.screen[self.l] = current_line[ : self.c - 1] + input + current_line[ self.c + len(input) - 1 : ]
                self.apply_color(self.c, self.c + len(input))
                self.c += len(input)
                return

            diff = self.c + len(input) - self.working_columns - 1
            # if autowrap is enabled
            if self.autowrap:
                self.screen[self.l] = current_line[ : self.c - 1] + input[ : -1 * diff ]
                self.apply_color(self.c, self.working_columns)
                self.ctl_nl()
                self.ctl_cr()
                remaining = input[ -1 * diff : ]

                self.plain_text(remaining)
            else:
                self.screen[self.l] = current_line[ : self.c - 1] + input[ : -1 * diff - 1 ] + input[-1]
                self.apply_color(self.c, self.working_columns)
                self.c = self.working_columns

        # no autowrap
        else:
            self.screen[self.l] = current_line[ : self.c - 1] + input + current_line[ self.c + len(input) - 1 : ]
            self.apply_color(self.c, self.c + len(input))
            self.c += len(input)

    def apply_color(self, start, end):


        # stop here if coloration is disabled
        if not self.enable_colors:
            return

        real_line = self.screen.get_real_line(self.l)

        # check for previous overlapping coloration

        to_del = []
        if self.color_history.has_key(real_line):
            for i in range(len(self.color_history[real_line])):
                syn = self.color_history[real_line][i]

                if syn['start'] >= start and syn['start'] < end:

                    vim.command('syn clear ' + syn['name'])
                    to_del.append(i)
                    # outside
                    if syn['end'] > end:

                        self.exec_highlight(real_line, end, syn['end'], syn['highlight'])
                elif syn['end'] > start and syn['end'] <= end:

                    vim.command('syn clear ' + syn['name'])
                    to_del.append(i)
                    # outside
                    if syn['start'] < start:

                        self.exec_highlight(real_line, syn['start'], start, syn['highlight'])

        if len(to_del) > 0:
            to_del.reverse()
            for di in to_del:
                del self.color_history[real_line][di]

        # if there are no new colors
        if len(self.color_changes) == 0:
            return

        highlight = ''
        for attr in self.color_changes.keys():
            highlight = highlight + ' ' + attr + '=' + self.color_changes[attr]

        # execute the highlight
        self.exec_highlight(real_line, start, end, highlight)

    def exec_highlight(self, real_line, start, end, highlight):
        unique_key = str(self.proc.pid)

        syntax_name = 'EscapeSequenceAt_' + unique_key + '_' + str(self.l) + '_' + str(start) + '_' + str(len(self.color_history) + 1)
        syntax_options = ' contains=ALLBUT,ConqueString,MySQLString,MySQLKeyword oneline'
        syntax_region = 'syntax match ' + syntax_name + ' /\%' + str(real_line) + 'l\%>' + str(start - 1) + 'c.*\%<' + str(end + 1) + 'c/' + syntax_options
        syntax_highlight = 'highlight ' + syntax_name + highlight

        vim.command(syntax_region)
        vim.command(syntax_highlight)

        # add syntax name to history
        if not self.color_history.has_key(real_line):
            self.color_history[real_line] = []

        self.color_history[real_line].append({'name':syntax_name, 'start':start, 'end':end, 'highlight':highlight})

    # }}}

    ###############################################################################################
    # Control functions {{{

    def ctl_nl(self):
        # if we're in a scrolling region, scroll instead of moving cursor down
        if self.lines != self.working_lines and self.l == self.bottom:
            del self.screen[self.top]
            self.screen.insert(self.bottom, '')
        elif self.l == self.bottom:
            self.screen.append('')
        else:
            self.l += 1

        self.color_changes = {}

    def ctl_cr(self):
        self.c = 1

        self.color_changes = {}

    def ctl_bs(self):
        if self.c > 1:
            self.c += -1

    def ctl_bel(self):
        print 'BELL'

    def ctl_tab(self):
        # default tabstop location
        ts = self.working_columns

        # check set tabstops
        for i in range(self.c, len(self.tabstops)):
            if self.tabstops[i]:
                ts = i + 1
                break



        self.c = ts

    # }}}

    ###############################################################################################
    # CSI functions {{{

    def csi_font(self, csi): # {{{
        if not self.enable_colors:
            return
        
        # defaults to 0
        if len(csi['vals']) == 0:
            csi['vals'] = [0]

        # 256 xterm color foreground
        if len(csi['vals']) == 3 and csi['vals'][0] == 38 and csi['vals'][1] == 5:
            self.color_changes['ctermfg'] = str(csi['vals'][2])
            self.color_changes['guifg'] = '#' + self.xterm_to_rgb(csi['vals'][2])

        # 256 xterm color background
        elif len(csi['vals']) == 3 and csi['vals'][0] == 48 and csi['vals'][1] == 5:
            self.color_changes['ctermbg'] = str(csi['vals'][2])
            self.color_changes['guibg'] = '#' + self.xterm_to_rgb(csi['vals'][2])

        # 16 colors
        else:
            for val in csi['vals']:
                if CONQUE_FONT.has_key(val):

                    # ignore starting normal colors
                    if CONQUE_FONT[val]['normal'] and len(self.color_changes) == 0:

                        continue
                    # clear color changes
                    elif CONQUE_FONT[val]['normal']:

                        self.color_changes = {}
                    # save these color attributes for next plain_text() call
                    else:

                        for attr in CONQUE_FONT[val]['attributes'].keys():
                            if self.color_changes.has_key(attr) and (attr == 'cterm' or attr == 'gui'):
                                self.color_changes[attr] += ',' + CONQUE_FONT[val]['attributes'][attr]
                            else:
                                self.color_changes[attr] = CONQUE_FONT[val]['attributes'][attr]
        # }}}

    def csi_clear_line(self, csi): # {{{


        # this escape defaults to 0
        if len(csi['vals']) == 0:
            csi['val'] = 0




        # 0 means cursor right
        if csi['val'] == 0:
            self.screen[self.l] = self.screen[self.l][0 : self.c - 1]

        # 1 means cursor left
        elif csi['val'] == 1:
            self.screen[self.l] = ' ' * (self.c) + self.screen[self.l][self.c : ]

        # clear entire line
        elif csi['val'] == 2:
            self.screen[self.l] = ''

        # clear colors
        if csi['val'] == 2 or (csi['val'] == 0 and self.c == 1):
            real_line = self.screen.get_real_line(self.l)
            if self.color_history.has_key(real_line):
                for syn in self.color_history[real_line]:
                    vim.command('syn clear ' + syn['name'])



        # }}}

    def csi_cursor_right(self, csi): # {{{
        # we use 1 even if escape explicitly specifies 0
        if csi['val'] == 0:
            csi['val'] = 1




        if self.wrap_cursor and self.c + csi['val'] > self.working_columns:
            self.l += int(math.floor( (self.c + csi['val']) / self.working_columns ))
            self.c = (self.c + csi['val']) % self.working_columns
            return

        self.c = self.bound(self.c + csi['val'], 1, self.working_columns)
        # }}}

    def csi_cursor_left(self, csi): # {{{
        # we use 1 even if escape explicitly specifies 0
        if csi['val'] == 0:
            csi['val'] = 1

        if self.wrap_cursor and csi['val'] >= self.c:
            self.l += int(math.floor( (self.c - csi['val']) / self.working_columns ))
            self.c = self.working_columns - (csi['val'] - self.c) % self.working_columns
            return

        self.c = self.bound(self.c - csi['val'], 1, self.working_columns)
        # }}}

    def csi_cursor_to_column(self, csi): # {{{
        self.c = self.bound(csi['val'], 1, self.working_columns)
        # }}}

    def csi_cursor_up(self, csi): # {{{
        self.l = self.bound(self.l - csi['val'], self.top, self.bottom)

        self.color_changes = {}
        # }}}

    def csi_cursor_down(self, csi): # {{{
        self.l = self.bound(self.l + csi['val'], self.top, self.bottom)

        self.color_changes = {}
        # }}}

    def csi_clear_screen(self, csi): # {{{
        # default to 0
        if len(csi['vals']) == 0:
            csi['val'] = 0

        # 2 == clear entire screen
        if csi['val'] == 2:
            self.l = 1
            self.c = 1
            self.screen.clear()

        # 0 == clear down
        elif csi['val'] == 0:
            for l in range(self.bound(self.l + 1, 1, self.lines), self.lines + 1):
                self.screen[l] = ''
            
            # clear end of current line
            self.csi_clear_line(self.parse_csi('K'))

        # 1 == clear up
        elif csi['val'] == 1:
            for l in range(1, self.bound(self.l, 1, self.lines + 1)):
                self.screen[l] = ''

            # clear beginning of current line
            self.csi_clear_line(self.parse_csi('1K'))

        # clear coloration
        if csi['val'] == 2 or csi['val'] == 0:
            real_line = self.screen.get_real_line(self.l)
            for line in self.color_history.keys():
                if line >= real_line:
                    for syn in self.color_history[line]:
                        vim.command('syn clear ' + syn['name'])

        self.color_changes = {}
        # }}}

    def csi_delete_chars(self, csi): # {{{
        self.screen[self.l] = self.screen[self.l][ : self.c ] + self.screen[self.l][ self.c + csi['val'] : ]
        # }}}

    def csi_add_spaces(self, csi): # {{{
        self.screen[self.l] = self.screen[self.l][ : self.c - 1] + ' ' * csi['val'] + self.screen[self.l][self.c : ]
        # }}}

    def csi_cursor(self, csi): # {{{
        if len(csi['vals']) == 2:
            new_line = csi['vals'][0]
            new_col = csi['vals'][1]
        else:
            new_line = 1
            new_col = 1

        if self.absolute_coords:
            self.l = self.bound(new_line, 1, self.lines)
        else:
            self.l = self.bound(self.top + new_line - 1, self.top, self.bottom)

        self.c = self.bound(new_col, 1, self.working_columns)
        if self.c > len(self.screen[self.l]):
            self.screen[self.l] = self.screen[self.l] + ' ' * (self.c - len(self.screen[self.l]))

        # }}}

    def csi_set_coords(self, csi): # {{{
        if len(csi['vals']) == 2:
            new_start = csi['vals'][0]
            new_end = csi['vals'][1]
        else:
            new_start = 1
            new_end = vim.current.window.height

        self.top = new_start
        self.bottom = new_end
        self.working_lines = new_end - new_start + 1

        # if cursor is outside scrolling region, reset it
        if self.l < self.top:
            self.l = self.top
        elif self.l > self.bottom:
            self.l = self.bottom

        self.color_changes = {}
        # }}}

    def csi_tab_clear(self, csi): # {{{
        # this escape defaults to 0
        if len(csi['vals']) == 0:
            csi['val'] = 0



        if csi['val'] == 0:
            self.tabstops[self.c - 1] = False
        elif csi['val'] == 3:
            for i in range(0, self.columns + 1):
                self.tabstops[i] = False
        # }}}

    def csi_set(self, csi): # {{{
        # 132 cols
        if csi['val'] == 3:
            self.csi_clear_screen(self.parse_csi('2J'))
            self.working_columns = 132

        # relative_origin
        elif csi['val'] == 6:
            self.absolute_coords = False

        # set auto wrap
        elif csi['val'] == 7:
            self.autowrap = True


        self.color_changes = {}
        # }}}

    def csi_reset(self, csi): # {{{
        # 80 cols
        if csi['val'] == 3:
            self.csi_clear_screen(self.parse_csi('2J'))
            self.working_columns = 80

        # absolute origin
        elif csi['val'] == 6:
            self.absolute_coords = True

        # reset auto wrap
        elif csi['val'] == 7:
            self.autowrap = False


        self.color_changes = {}
        # }}}

    # }}}

    ###############################################################################################
    # ESC functions {{{

    def esc_scroll_up(self): # {{{
        self.ctl_nl()

        self.color_changes = {}
        # }}}

    def esc_next_line(self): # {{{
        self.ctl_nl()
        self.c = 1
        # }}}

    def esc_set_tab(self): # {{{

        if self.c <= len(self.tabstops):
            self.tabstops[self.c - 1] = True
        # }}}

    def esc_scroll_down(self): # {{{
        if self.l == self.top:
            del self.screen[self.bottom]
            self.screen.insert(self.top, '')
        else:
            self.l += -1

        self.color_changes = {}
        # }}}

    # }}}

    ###############################################################################################
    # HASH functions {{{

    def hash_screen_alignment_test(self): # {{{
        self.csi_clear_screen(self.parse_csi('2J'))
        self.working_lines = self.lines
        for l in range(1, self.lines + 1):
            self.screen[l] = 'E' * self.working_columns
        # }}}

    # }}}

    ###############################################################################################
    # Random stuff {{{

    def change_title(self, key, val):


        if key == '0' or key == '2':

            vim.command('setlocal statusline=' + re.escape(val))

    def paste(self):
        self.write(vim.eval('@@'))
        self.read(50)

    def paste_selection(self):
        self.write(vim.eval('@@'))

    def update_window_size(self):
        # resize if needed
        if vim.current.window.width != self.columns or vim.current.window.height != self.lines:

            # reset all window size attributes to default
            self.columns = vim.current.window.width
            self.lines = vim.current.window.height
            self.working_columns = vim.current.window.width
            self.working_lines = vim.current.window.height
            self.bottom = vim.current.window.height

            # reset screen object attributes
            self.l = self.screen.reset_size(self.l)

            # reset tabstops
            self.init_tabstops()



            # signal process that screen size has changed
            self.proc.window_resize(self.lines, self.columns)

    def init_tabstops(self):
        for i in range(0, self.columns + 1):
            if i % 8 == 0:
                self.tabstops.append(True)
            else:
                self.tabstops.append(False)

    # }}}

    ###############################################################################################
    # Utility {{{
    
    def parse_csi(self, s): # {{{
        attr = { 'key' : s[-1], 'flag' : '', 'val' : 1, 'vals' : [] }

        if len(s) == 1:
            return attr

        full = s[0:-1]

        if full[0] == '?':
            full = full[1:]
            attr['flag'] = '?'

        if full != '':
            vals = full.split(';')
            for val in vals:

                val = re.sub("\D", "", val)

                if val != '':
                    attr['vals'].append(int(val))

        if len(attr['vals']) == 1:
            attr['val'] = int(attr['vals'][0])
            
        return attr
        # }}}

    def bound(self, val, min, max): # {{{
        if val > max:
            return max

        if val < min:
            return min

        return val
        # }}}

    def xterm_to_rgb(self, color_code): # {{{
        if color_code < 16:
            ascii_colors = ['000000', 'CD0000', '00CD00', 'CDCD00', '0000EE', 'CD00CD', '00CDCD', 'E5E5E5',
                   '7F7F7F', 'FF0000', '00FF00', 'FFFF00', '5C5CFF', 'FF00FF', '00FFFF', 'FFFFFF']
            return ascii_colors[color_code]

        elif color_code < 232:
            cc = int(color_code) - 16

            p1 = "%02x" % (math.floor(cc / 36) * (255/5))
            p2 = "%02x" % (math.floor((cc % 36) / 6) * (255/5))
            p3 = "%02x" % (math.floor(cc % 6) * (255/5))

            return p1 + p2 + p3
        else:
            grey_tone = "%02x" % math.floor((255/24) * (color_code - 232))
            return grey_tone + grey_tone + grey_tone
        # }}}

    # }}}


import os, signal, pty, tty, select, fcntl, termios, struct

###################################################################################################
class ConqueSubprocess:

    # process id
    pid = 0
    
    # stdout+stderr file descriptor
    fd = None

    # constructor
    def __init__(self): # {{{
        self.pid = 0
        # }}}

    # create the pty or whatever (whatever == windows)
    def open(self, command, env = {}): # {{{
        command_arr = command.split()
        executable = command_arr[0]
        args = command_arr

        try:
            self.pid, self.fd = pty.fork()

        except:
            pass


        # child proc, replace with command after altering terminal attributes
        if self.pid == 0:

            # set requested environment variables
            for k in env.keys():
                os.environ[k] = env[k]

            # set some attributes
            try:
                attrs = tty.tcgetattr(1)
                attrs[0] = attrs[0] ^ tty.IGNBRK
                attrs[0] = attrs[0] | tty.BRKINT | tty.IXANY | tty.IMAXBEL
                attrs[2] = attrs[2] | tty.HUPCL
                attrs[3] = attrs[3] | tty.ICANON | tty.ECHO | tty.ISIG | tty.ECHOKE
                attrs[6][tty.VMIN] = 1
                attrs[6][tty.VTIME] = 0
                tty.tcsetattr(1, tty.TCSANOW, attrs)
            except:
                pass

            os.execvp(executable, args)

        # else master, do nothing
        else:
            pass

        # }}}

    # read from pty
    # XXX - select.poll() doesn't work in OS X!!!!!!!
    def read(self, timeout = 1): # {{{

        output = ''
        read_timeout = float(timeout) / 1000

        try:
            # what, no do/while?
            while 1:
                s_read, s_write, s_error = select.select( [ self.fd ], [], [], read_timeout)

                lines = ''
                for s_fd in s_read:
                    try:
                        lines = os.read( self.fd, 32 )
                    except:
                        pass
                    output = output + lines

                if lines == '':
                    break
        except:
            pass

        return output
        # }}}

    # I guess this one's not bad
    def write(self, input): # {{{
        try:
            os.write(self.fd, input)
        except:
            pass
        # }}}

    # signal process
    def signal(self, signum): # {{{
        try:
            os.kill(self.pid, signum)
        except:
            pass
        # }}}

    # get process status
    def get_status(self): #{{{

        p_status = True

        try:
            if os.waitpid( self.pid, os.WNOHANG )[0]:
                p_status = False
        except:
            p_status = False

        return p_status

        # }}}

    # update window size in kernel, then send SIGWINCH to fg process
    def window_resize(self, lines, columns): # {{{
        try:
            fcntl.ioctl(self.fd, termios.TIOCSWINSZ, struct.pack("HHHH", lines, columns, 0, 0))
            os.kill(self.pid, signal.SIGWINCH)
        except:
            pass

        # }}}


###################################################################################################
# ConqueScreen is an extention of the vim.current.buffer object
# It restricts the working indices of the buffer object to the scroll region which pty is expecting
# It also uses 1-based indexes, to match escape sequence commands
#
# E.g.:
# s = ConqueScreen()
# ...
# s[5] = 'Set 5th line in terminal to this line'
# s.append('Add new line to terminal')
# s[5] = 'Since previous append() command scrolled the terminal down, this is a different line than first cb[5] call'
#

import vim

class ConqueScreen(object):

    # CLASS PROPERTIES {{{

    # the buffer
    buffer = None

    # screen and scrolling regions
    screen_top = 1

    # screen width
    screen_width = 80
    screen_height = 80

    # }}}

    def __init__(self): # {{{
        self.buffer = vim.current.buffer

        self.screen_top = 1
        self.screen_width = vim.current.window.width
        self.screen_height = vim.current.window.height
    # }}}

    ###############################################################################################
    # List overload {{{
    def __len__(self): # {{{
        return len(self.buffer)
    # }}}

    def __getitem__(self, key): # {{{
        real_line = self.get_real_idx(key)

        # if line is past buffer end, add lines to buffer
        if real_line >= len(self.buffer):
            for i in range(len(self.buffer), real_line + 1):
                self.append(' ' * self.screen_width)

        return self.buffer[ real_line ]
    # }}}

    def __setitem__(self, key, value): # {{{
        real_line = self.get_real_idx(key)

        # if line is past end of screen, append
        if real_line == len(self.buffer):
            self.buffer.append(value)
        else:
            self.buffer[ real_line ] = value
    # }}}

    def __delitem__(self, key): # {{{
        del self.buffer[ self.screen_top + key - 2 ]
    # }}}

    def append(self, value): # {{{
        if len(self.buffer) > self.screen_top + self.screen_height - 1:
            self.buffer[len(self.buffer) - 1] = value
        else:
            self.buffer.append(value)

        if len(self.buffer) > self.screen_top + self.screen_height - 1:
            self.screen_top += 1
        if vim.current.buffer.number == self.buffer.number:
            vim.command('normal G')
    # }}}

    def insert(self, line, value): # {{{

        l = self.screen_top + line - 2
        self.buffer[l:l] = [ value ]
    
    # }}}
    # }}}

    ###############################################################################################
    # Util {{{
    def get_top(self): # {{{
        return self.screen_top
    # }}}

    def get_real_idx(self, line): # {{{
        return (self.screen_top + line - 2)
    # }}}

    def get_real_line(self, line): # {{{
        return (self.screen_top + line - 1)
    # }}}

    def set_screen_width(self, width): # {{{
        self.screen_width = width
    # }}}

    # }}}

    ###############################################################################################
    def clear(self): # {{{
        self.buffer.append(' ')
        vim.command('normal Gzt')
        self.screen_top = len(self.buffer)
    # }}}

    def set_cursor(self, line, column): # {{{
        # figure out line
        real_line = self.screen_top + line - 1
        if real_line > len(self.buffer):
            for l in range(len(self.buffer) - 1, real_line):
                self.buffer.append('')

        # figure out column
        real_column = column
        if len(self.buffer[real_line - 1]) < real_column:
            self.buffer[real_line - 1] = self.buffer[real_line - 1] + ' ' * (real_column - len(self.buffer[real_line - 1]))

        # python version is occasionally grumpy
        try:
            vim.current.window.cursor = (real_line, real_column - 1)
        except:
            vim.command('call cursor(' + str(real_line) + ', ' + str(real_column) + ')')
    # }}}

    def reset_size(self, line): # {{{




        # save cursor line number
        real_line = self.screen_top + line

        # reset screen size
        self.screen_width = vim.current.window.width
        self.screen_height = vim.current.window.height
        self.screen_top = len(self.buffer) - vim.current.window.height + 1
        if self.screen_top < 1:
            self.screen_top = 1


        # align bottom of buffer to bottom of screen
        vim.command('normal ' + str(self.screen_height) + 'kG')

        # return new relative line number
        return (real_line - self.screen_top)
    # }}}

    def scroll_to_bottom(self): # {{{
        vim.current.window.cursor = (len(self.buffer) - 1, 1)
    # }}}
        
    def align(self): # {{{
        # align bottom of buffer to bottom of screen
        vim.command('normal ' + str(self.screen_height) + 'kG')
    # }}}


EOF

endif

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