dotfiles/.vim/bundle/vim-easy-align/autoload/easy_align.vim

1149 lines
33 KiB
VimL

" Copyright (c) 2014 Junegunn Choi
"
" 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.
if exists("g:loaded_easy_align")
finish
endif
let g:loaded_easy_align = 1
let s:cpo_save = &cpo
set cpo&vim
let s:easy_align_delimiters_default = {
\ ' ': { 'pattern': ' ', 'left_margin': 0, 'right_margin': 0, 'stick_to_left': 0 },
\ '=': { 'pattern': '===\|<=>\|\(&&\|||\|<<\|>>\)=\|=\~[#?]\?\|=>\|[:+/*!%^=><&|.?-]\?=[#?]\?',
\ 'left_margin': 1, 'right_margin': 1, 'stick_to_left': 0 },
\ ':': { 'pattern': ':', 'left_margin': 0, 'right_margin': 1, 'stick_to_left': 1 },
\ ',': { 'pattern': ',', 'left_margin': 0, 'right_margin': 1, 'stick_to_left': 1 },
\ '|': { 'pattern': '|', 'left_margin': 1, 'right_margin': 1, 'stick_to_left': 0 },
\ '.': { 'pattern': '\.', 'left_margin': 0, 'right_margin': 0, 'stick_to_left': 0 },
\ '#': { 'pattern': '#\+', 'delimiter_align': 'l', 'ignore_groups': ['!Comment'] },
\ '"': { 'pattern': '"\+', 'delimiter_align': 'l', 'ignore_groups': ['!Comment'] },
\ '&': { 'pattern': '\\\@<!&\|\\\\',
\ 'left_margin': 1, 'right_margin': 1, 'stick_to_left': 0 },
\ '{': { 'pattern': '(\@<!{',
\ 'left_margin': 1, 'right_margin': 1, 'stick_to_left': 0 },
\ '}': { 'pattern': '}', 'left_margin': 1, 'right_margin': 0, 'stick_to_left': 0 }
\ }
let s:mode_labels = { 'l': '', 'r': '[R]', 'c': '[C]' }
let s:known_options = {
\ 'margin_left': [0, 1], 'margin_right': [0, 1], 'stick_to_left': [0],
\ 'left_margin': [0, 1], 'right_margin': [0, 1], 'indentation': [1],
\ 'ignore_groups': [3 ], 'ignore_unmatched': [0 ], 'delimiter_align': [1],
\ 'mode_sequence': [1 ], 'ignores': [3], 'filter': [1],
\ 'align': [1 ]
\ }
let s:option_values = {
\ 'indentation': ['shallow', 'deep', 'none', 'keep', -1],
\ 'delimiter_align': ['left', 'center', 'right', -1],
\ 'ignore_unmatched': [0, 1, -1],
\ 'ignore_groups': [[], ['String'], ['Comment'], ['String', 'Comment'], -1]
\ }
let s:shorthand = {
\ 'margin_left': 'lm', 'margin_right': 'rm', 'stick_to_left': 'stl',
\ 'left_margin': 'lm', 'right_margin': 'rm', 'indentation': 'idt',
\ 'ignore_groups': 'ig', 'ignore_unmatched': 'iu', 'delimiter_align': 'da',
\ 'mode_sequence': 'a', 'ignores': 'ig', 'filter': 'f',
\ 'align': 'a'
\ }
if exists("*strdisplaywidth")
function! s:strwidth(str)
return strdisplaywidth(a:str)
endfunction
else
function! s:strwidth(str)
return len(split(a:str, '\zs')) + len(matchstr(a:str, '^\t*')) * (&tabstop - 1)
endfunction
endif
function! s:ceil2(v)
return a:v % 2 == 0 ? a:v : a:v + 1
endfunction
function! s:floor2(v)
return a:v % 2 == 0 ? a:v : a:v - 1
endfunction
function! s:highlighted_as(line, col, groups)
if empty(a:groups) | return 0 | endif
let hl = synIDattr(synID(a:line, a:col, 0), 'name')
for grp in a:groups
if grp[0] == '!'
if hl !~# grp[1:-1]
return 1
endif
elseif hl =~# grp
return 1
endif
endfor
return 0
endfunction
function! s:ignored_syntax()
if has('syntax') && exists('g:syntax_on')
" Backward-compatibility
return get(g:, 'easy_align_ignore_groups',
\ get(g:, 'easy_align_ignores',
\ (get(g:, 'easy_align_ignore_comment', 1) == 0) ?
\ ['String'] : ['String', 'Comment']))
else
return []
endif
endfunction
function! s:echon_(tokens)
" http://vim.wikia.com/wiki/How_to_print_full_screen_width_messages
let xy = [&ruler, &showcmd]
try
set noruler noshowcmd
let winlen = winwidth(winnr()) - 2
let len = len(join(map(copy(a:tokens), 'v:val[1]'), ''))
let ellipsis = len > winlen ? '..' : ''
echon "\r"
let yet = 0
for [hl, msg] in a:tokens
if empty(msg) | continue | endif
execute "echohl ". hl
let yet += len(msg)
if yet > winlen - len(ellipsis)
echon msg[ 0 : (winlen - len(ellipsis) - yet - 1) ] . ellipsis
break
else
echon msg
endif
endfor
finally
echohl None
let [&ruler, &showcmd] = xy
endtry
endfunction
function! s:echon(l, n, r, d, o, warn)
let tokens = [
\ ['Function', s:live ? ':LiveEasyAlign' : ':EasyAlign'],
\ ['ModeMsg', get(s:mode_labels, a:l, a:l)],
\ ['None', ' ']]
if a:r == -1 | call add(tokens, ['Comment', '(']) | endif
call add(tokens, [a:n =~ '*' ? 'Repeat' : 'Number', a:n])
call extend(tokens, a:r == 1 ?
\ [['Delimiter', '/'], ['String', a:d], ['Delimiter', '/']] :
\ [['Identifier', a:d == ' ' ? '\ ' : (a:d == '\' ? '\\' : a:d)]])
if a:r == -1 | call extend(tokens, [['Normal', '_'], ['Comment', ')']]) | endif
call add(tokens, ['Statement', empty(a:o) ? '' : ' '.string(a:o)])
if !empty(a:warn)
call add(tokens, ['WarningMsg', ' ('.a:warn.')'])
endif
call s:echon_(tokens)
return join(map(tokens, 'v:val[1]'), '')
endfunction
function! s:exit(msg)
call s:echon_([['ErrorMsg', a:msg]])
throw 'exit'
endfunction
function! s:ltrim(str)
return substitute(a:str, '^\s\+', '', '')
endfunction
function! s:rtrim(str)
return substitute(a:str, '\s\+$', '', '')
endfunction
function! s:trim(str)
return substitute(a:str, '^\s*\(.\{-}\)\s*$', '\1', '')
endfunction
function! s:fuzzy_lu(key)
if has_key(s:known_options, a:key)
return a:key
endif
let key = tolower(a:key)
" stl -> ^s.*_t.*_l.*
let regexp1 = '^' .key[0]. '.*' .substitute(key[1 : -1], '\(.\)', '_\1.*', 'g')
let matches = filter(keys(s:known_options), 'v:val =~ regexp1')
if len(matches) == 1
return matches[0]
endif
" stl -> ^s.*t.*l.*
let regexp2 = '^' . substitute(substitute(key, '-', '_', 'g'), '\(.\)', '\1.*', 'g')
let matches = filter(keys(s:known_options), 'v:val =~ regexp2')
if empty(matches)
call s:exit("Unknown option key: ". a:key)
elseif len(matches) == 1
return matches[0]
else
" Avoid ambiguity introduced by deprecated margin_left and margin_right
if sort(matches) == ['margin_left', 'margin_right', 'mode_sequence']
return 'mode_sequence'
endif
if sort(matches) == ['ignore_groups', 'ignores']
return 'ignore_groups'
endif
call s:exit("Ambiguous option key: ". a:key ." (" .join(matches, ', '). ")")
endif
endfunction
function! s:shift(modes, cycle)
let item = remove(a:modes, 0)
if a:cycle || empty(a:modes)
call add(a:modes, item)
endif
return item
endfunction
function! s:normalize_options(opts)
let ret = {}
for k in keys(a:opts)
let v = a:opts[k]
let k = s:fuzzy_lu(k)
" Backward-compatibility
if k == 'margin_left' | let k = 'left_margin' | endif
if k == 'margin_right' | let k = 'right_margin' | endif
if k == 'mode_sequence' | let k = 'align' | endif
let ret[k] = v
unlet v
endfor
return s:validate_options(ret)
endfunction
function! s:compact_options(opts)
let ret = {}
for k in keys(a:opts)
let ret[s:shorthand[k]] = a:opts[k]
endfor
return ret
endfunction
function! s:validate_options(opts)
for k in keys(a:opts)
let v = a:opts[k]
if index(s:known_options[k], type(v)) == -1
call s:exit("Invalid type for option: ". k)
endif
unlet v
endfor
return a:opts
endfunction
function! s:split_line(line, nth, modes, cycle, fc, lc, pattern, stick_to_left, ignore_unmatched, ignore_groups)
let mode = ''
let string = a:lc ?
\ strpart(getline(a:line), a:fc - 1, a:lc - a:fc + 1) :
\ strpart(getline(a:line), a:fc - 1)
let idx = 0
let nomagic = match(a:pattern, '\\v') > match(a:pattern, '\C\\[mMV]')
let pattern = '^.\{-}\s*\zs\('.a:pattern.(nomagic ? ')' : '\)')
let tokens = []
let delims = []
" Phase 1: split
let ignorable = 0
let token = ''
let phantom = 0
while 1
let matchidx = match(string, pattern, idx)
" No match
if matchidx < 0 | break | endif
let matchend = matchend(string, pattern, idx)
let spaces = matchstr(string, '\s'.(a:stick_to_left ? '*' : '\{-}'), matchend + (matchidx == matchend))
" Match, but empty
if len(spaces) + matchend - idx == 0
let char = strpart(string, idx, 1)
if empty(char) | break | endif
let [match, part, delim] = [char, char, '']
" Match
else
let match = strpart(string, idx, matchend - idx + len(spaces))
let part = strpart(string, idx, matchidx - idx)
let delim = strpart(string, matchidx, matchend - matchidx)
endif
let ignorable = s:highlighted_as(a:line, idx + len(part) + a:fc, a:ignore_groups)
if ignorable
let token .= match
else
let [pmode, mode] = [mode, s:shift(a:modes, a:cycle)]
call add(tokens, token . match)
call add(delims, delim)
let token = ''
endif
let idx += len(match)
" If the string is non-empty and ends with the delimiter,
" append an empty token to the list
if idx == len(string)
let phantom = 1
break
endif
endwhile
let leftover = token . strpart(string, idx)
if !empty(leftover)
let ignorable = s:highlighted_as(a:line, len(string) + a:fc - 1, a:ignore_groups)
call add(tokens, leftover)
call add(delims, '')
elseif phantom
call add(tokens, '')
call add(delims, '')
endif
let [pmode, mode] = [mode, s:shift(a:modes, a:cycle)]
" Preserve indentation - merge first two tokens
if len(tokens) > 1 && empty(s:rtrim(tokens[0]))
let tokens[1] = tokens[0] . tokens[1]
call remove(tokens, 0)
call remove(delims, 0)
let mode = pmode
endif
" Skip comment line
if ignorable && len(tokens) == 1 && a:ignore_unmatched
let tokens = []
let delims = []
" Append an empty item to enable right/center alignment of the last token
" - if the last token is not ignorable or ignorable but not the only token
elseif a:ignore_unmatched != 1 &&
\ (mode ==? 'r' || mode ==? 'c') &&
\ (!ignorable || len(tokens) > 1) &&
\ a:nth >= 0 " includes -0
call add(tokens, '')
call add(delims, '')
endif
return [tokens, delims]
endfunction
function! s:do_align(todo, modes, all_tokens, all_delims, fl, ll, fc, lc, nth, recur, dict)
let mode = a:modes[0]
let lines = {}
let min_indent = -1
let max = { 'pivot_len2': 0, 'token_len': 0, 'just_len': 0, 'delim_len': 0,
\ 'indent': 0, 'tokens': 0, 'strip_len': 0 }
let d = a:dict
let [f, fx] = s:parse_filter(d.filter)
" Phase 1
for line in range(a:fl, a:ll)
let snip = a:lc > 0 ? getline(line)[a:fc-1 : a:lc-1] : getline(line)
if f == 1 && snip !~ fx
continue
elseif f == -1 && snip =~ fx
continue
endif
if !has_key(a:all_tokens, line)
" Split line into the tokens by the delimiters
let [tokens, delims] = s:split_line(
\ line, a:nth, copy(a:modes), a:recur == 2,
\ a:fc, a:lc, d.pattern,
\ d.stick_to_left, d.ignore_unmatched, d.ignore_groups)
" Remember tokens for subsequent recursive calls
let a:all_tokens[line] = tokens
let a:all_delims[line] = delims
else
let tokens = a:all_tokens[line]
let delims = a:all_delims[line]
endif
" Skip empty lines
if empty(tokens)
continue
endif
" Calculate the maximum number of tokens for a line within the range
let max.tokens = max([max.tokens, len(tokens)])
if a:nth > 0 " Positive N-th
if len(tokens) < a:nth
continue
endif
let nth = a:nth - 1 " make it 0-based
else " -0 or Negative N-th
if a:nth == 0 && mode !=? 'l'
let nth = len(tokens) - 1
else
let nth = len(tokens) + a:nth
endif
if empty(delims[len(delims) - 1])
let nth -= 1
endif
if nth < 0 || nth == len(tokens)
continue
endif
endif
let prefix = nth > 0 ? join(tokens[0 : nth - 1], '') : ''
let delim = delims[nth]
let token = s:rtrim( tokens[nth] )
let token = s:rtrim( strpart(token, 0, len(token) - len(s:rtrim(delim))) )
if empty(delim) && !exists('tokens[nth + 1]') && d.ignore_unmatched
continue
endif
let indent = s:strwidth(matchstr(tokens[0], '^\s*'))
if min_indent < 0 || indent < min_indent
let min_indent = indent
endif
if mode ==? 'c'
let token .= substitute(matchstr(token, '^\s*'), '\t', repeat(' ', &tabstop), 'g')
endif
let [pw, tw] = [s:strwidth(prefix), s:strwidth(token)]
let max.indent = max([max.indent, indent])
let max.token_len = max([max.token_len, tw])
let max.just_len = max([max.just_len, pw + tw])
let max.delim_len = max([max.delim_len, s:strwidth(delim)])
if mode ==? 'c'
let pivot_len2 = pw * 2 + tw
if max.pivot_len2 < pivot_len2
let max.pivot_len2 = pivot_len2
endif
let max.strip_len = max([max.strip_len, s:strwidth(s:trim(token))])
endif
let lines[line] = [nth, prefix, token, delim]
endfor
" Phase 1-5: indentation handling (only on a:nth == 1)
if a:nth == 1
let idt = d.indentation
if idt ==? 'd'
let indent = max.indent
elseif idt ==? 's'
let indent = min_indent
elseif idt ==? 'n'
let indent = 0
elseif idt !=? 'k'
call s:exit('Invalid indentation: ' . idt)
end
if idt !=? 'k'
let max.just_len = 0
let max.token_len = 0
let max.pivot_len2 = 0
for [line, elems] in items(lines)
let [nth, prefix, token, delim] = elems
let tindent = matchstr(token, '^\s*')
while 1
let len = s:strwidth(tindent)
if len < indent
let tindent .= repeat(' ', indent - len)
break
elseif len > indent
let tindent = tindent[0 : -2]
else
break
endif
endwhile
let token = tindent . s:ltrim(token)
if mode ==? 'c'
let token = substitute(token, '\s*$', repeat(' ', indent), '')
endif
let [pw, tw] = [s:strwidth(prefix), s:strwidth(token)]
let max.token_len = max([max.token_len, tw])
let max.just_len = max([max.just_len, pw + tw])
if mode ==? 'c'
let pivot_len2 = pw * 2 + tw
if max.pivot_len2 < pivot_len2
let max.pivot_len2 = pivot_len2
endif
endif
let lines[line][2] = token
endfor
endif
endif
" Phase 2
for [line, elems] in items(lines)
let tokens = a:all_tokens[line]
let delims = a:all_delims[line]
let [nth, prefix, token, delim] = elems
" Remove the leading whitespaces of the next token
if len(tokens) > nth + 1
let tokens[nth + 1] = s:ltrim(tokens[nth + 1])
endif
" Pad the token with spaces
let [pw, tw] = [s:strwidth(prefix), s:strwidth(token)]
let rpad = ''
if mode ==? 'l'
let pad = repeat(' ', max.just_len - pw - tw)
if d.stick_to_left
let rpad = pad
else
let token = token . pad
endif
elseif mode ==? 'r'
let pad = repeat(' ', max.just_len - pw - tw)
let indent = matchstr(token, '^\s*')
let token = indent . pad . s:ltrim(token)
elseif mode ==? 'c'
let p1 = max.pivot_len2 - (pw * 2 + tw)
let p2 = max.token_len - tw
let pf1 = s:floor2(p1)
if pf1 < p1 | let p2 = s:ceil2(p2)
else | let p2 = s:floor2(p2)
endif
let strip = s:ceil2(max.token_len - max.strip_len) / 2
let indent = matchstr(token, '^\s*')
let token = indent. repeat(' ', pf1 / 2) .s:ltrim(token). repeat(' ', p2 / 2)
let token = substitute(token, repeat(' ', strip) . '$', '', '')
if d.stick_to_left
if empty(s:rtrim(token))
let center = len(token) / 2
let [token, rpad] = [strpart(token, 0, center), strpart(token, center)]
else
let [token, rpad] = [s:rtrim(token), matchstr(token, '\s*$')]
endif
endif
endif
let tokens[nth] = token
" Pad the delimiter
let dpadl = max.delim_len - s:strwidth(delim)
let da = d.delimiter_align
if da ==? 'l'
let [dl, dr] = ['', repeat(' ', dpadl)]
elseif da ==? 'c'
let dl = repeat(' ', dpadl / 2)
let dr = repeat(' ', dpadl - dpadl / 2)
elseif da ==? 'r'
let [dl, dr] = [repeat(' ', dpadl), '']
else
call s:exit('Invalid delimiter_align: ' . da)
endif
" Before and after the range (for blockwise visual mode)
let cline = getline(line)
let before = strpart(cline, 0, a:fc - 1)
let after = a:lc ? strpart(cline, a:lc) : ''
" Determine the left and right margin around the delimiter
let rest = join(tokens[nth + 1 : -1], '')
let nomore = empty(rest.after)
let ml = (empty(prefix . token) || empty(delim) && nomore) ? '' : d.ml
let mr = nomore ? '' : d.mr
" Adjust indentation of the lines starting with a delimiter
let lpad = ''
if nth == 0
let ipad = repeat(' ', min_indent - s:strwidth(token.ml))
if mode ==? 'l'
let token = ipad . token
else
let lpad = ipad
endif
endif
" Align the token
let aligned = join([lpad, token, ml, dl, delim, dr, mr, rpad], '')
let tokens[nth] = aligned
" Update the line
let a:todo[line] = before.join(tokens, '').after
endfor
if a:nth < max.tokens && (a:recur || len(a:modes) > 1)
call s:shift(a:modes, a:recur == 2)
return [a:todo, a:modes, a:all_tokens, a:all_delims,
\ a:fl, a:ll, a:fc, a:lc, a:nth + 1, a:recur, a:dict]
endif
return [a:todo]
endfunction
function! s:input(str, default, vis)
if a:vis
normal! gv
redraw
execute "normal! \<esc>"
else
" EasyAlign command can be called without visual selection
redraw
endif
let got = input(a:str, a:default)
return got
endfunction
function! s:atoi(str)
return (a:str =~ '^[0-9]\+$') ? str2nr(a:str) : a:str
endfunction
function! s:shift_opts(opts, key, vals)
let val = s:shift(a:vals, 1)
if type(val) == 0 && val == -1
call remove(a:opts, a:key)
else
let a:opts[a:key] = val
endif
endfunction
function! s:interactive(range, modes, n, d, opts, rules, vis, bvis)
let mode = s:shift(a:modes, 1)
let n = a:n
let d = a:d
let ch = ''
let opts = s:compact_options(a:opts)
let vals = deepcopy(s:option_values)
let regx = 0
let warn = ''
let undo = 0
while 1
" Live preview
let rdrw = 0
if undo
silent! undo
let undo = 0
let rdrw = 1
endif
if s:live && !empty(d)
let output = s:process(a:range, mode, n, d, s:normalize_options(opts), regx, a:rules, a:bvis)
let &undolevels = &undolevels " Break undo block
call s:update_lines(output.todo)
let undo = !empty(output.todo)
let rdrw = 1
endif
if rdrw
if a:vis
normal! gv
endif
redraw
if a:vis | execute "normal! \<esc>" | endif
endif
call s:echon(mode, n, -1, regx ? '/'.d.'/' : d, opts, warn)
let check = 0
let warn = ''
try
let c = getchar()
catch /^Vim:Interrupt$/
let c = 27
endtry
let ch = nr2char(c)
if c == 3 || c == 27 " CTRL-C / ESC
if undo
silent! undo
endif
throw 'exit'
elseif c == "\<bs>"
if !empty(d)
let d = ''
let regx = 0
elseif len(n) > 0
let n = strpart(n, 0, len(n) - 1)
endif
elseif c == 13 " Enter key
let mode = s:shift(a:modes, 1)
if has_key(opts, 'a')
let opts.a = mode . strpart(opts.a, 1)
endif
elseif ch == '-'
if empty(n) | let n = '-'
elseif n == '-' | let n = ''
else | let check = 1
endif
elseif ch == '*'
if empty(n) | let n = '*'
elseif n == '*' | let n = '**'
elseif n == '**' | let n = ''
else | let check = 1
endif
elseif empty(d) && ((c == 48 && len(n) > 0) || c > 48 && c <= 57) " Numbers
if n[0] == '*' | let check = 1
else | let n = n . ch
end
elseif ch == "\<C-D>"
call s:shift_opts(opts, 'da', vals['delimiter_align'])
elseif ch == "\<C-I>"
call s:shift_opts(opts, 'idt', vals['indentation'])
elseif ch == "\<C-L>"
let lm = s:input("Left margin: ", get(opts, 'lm', ''), a:vis)
if empty(lm)
let warn = 'Set to default. Input 0 to remove it'
silent! call remove(opts, 'lm')
else
let opts['lm'] = s:atoi(lm)
endif
elseif ch == "\<C-R>"
let rm = s:input("Right margin: ", get(opts, 'rm', ''), a:vis)
if empty(rm)
let warn = 'Set to default. Input 0 to remove it'
silent! call remove(opts, 'rm')
else
let opts['rm'] = s:atoi(rm)
endif
elseif ch == "\<C-U>"
call s:shift_opts(opts, 'iu', vals['ignore_unmatched'])
elseif ch == "\<C-G>"
call s:shift_opts(opts, 'ig', vals['ignore_groups'])
elseif ch == "\<C-P>"
if s:live
if !empty(d)
let ch = d
break
else
let s:live = 0
endif
else
let s:live = 1
endif
elseif c == "\<Left>"
let opts['stl'] = 1
let opts['lm'] = 0
elseif c == "\<Right>"
let opts['stl'] = 0
let opts['lm'] = 1
elseif c == "\<Down>"
let opts['lm'] = 0
let opts['rm'] = 0
elseif c == "\<Up>"
silent! call remove(opts, 'stl')
silent! call remove(opts, 'lm')
silent! call remove(opts, 'rm')
elseif ch == "\<C-A>" || ch == "\<C-O>"
let modes = tolower(s:input("Alignment ([lrc...][[*]*]): ", get(opts, 'a', mode), a:vis))
if match(modes, '^[lrc]\+\*\{0,2}$') != -1
let opts['a'] = modes
let mode = modes[0]
while mode != s:shift(a:modes, 1)
endwhile
else
silent! call remove(opts, 'a')
endif
elseif ch == "\<C-_>" || ch == "\<C-X>"
if s:live && regx && !empty(d)
break
endif
let prompt = 'Regular expression: '
let ch = s:input(prompt, '', a:vis)
if !empty(ch) && s:valid_regexp(ch)
let regx = 1
let d = ch
if !s:live | break | endif
else
let warn = 'Invalid regular expression: '.ch
endif
elseif ch == "\<C-F>"
let f = s:input("Filter (g/../ or v/../): ", get(opts, 'f', ''), a:vis)
let m = matchlist(f, '^[gv]/\(.\{-}\)/\?$')
if empty(f)
silent! call remove(opts, 'f')
elseif !empty(m) && s:valid_regexp(m[1])
let opts['f'] = f
else
let warn = 'Invalid filter expression'
endif
elseif ch =~ '[[:print:]]'
let check = 1
else
let warn = 'Invalid character'
endif
if check
if empty(d)
if has_key(a:rules, ch)
let d = ch
if !s:live
if a:vis
execute "normal! gv\<esc>"
endif
break
endif
else
let warn = 'Unknown delimiter key: '.ch
endif
else
if regx
let warn = 'Press <CTRL-X> to finish'
else
if d == ch
break
else
let warn = 'Press '''.d.''' again to finish'
endif
end
endif
endif
endwhile
if s:live
let copts = call('s:summarize', output.summarize)
let s:live = 0
let g:easy_align_last_command = s:echon('', n, regx, d, copts, '')
let s:live = 1
end
return [mode, n, ch, opts, regx]
endfunction
function! s:valid_regexp(regexp)
try
call matchlist('', a:regexp)
catch
return 0
endtry
return 1
endfunction
function! s:test_regexp(regexp)
let regexp = empty(a:regexp) ? @/ : a:regexp
if !s:valid_regexp(regexp)
call s:exit('Invalid regular expression: '. regexp)
endif
return regexp
endfunction
let s:shorthand_regex =
\ '\s*\%('
\ .'\(lm\?[0-9]\+\)\|\(rm\?[0-9]\+\)\|\(iu[01]\)\|\(\%(s\%(tl\)\?[01]\)\|[<>]\)\|'
\ .'\(da\?[clr]\)\|\(\%(ms\?\|a\)[lrc*]\+\)\|\(i\%(dt\)\?[kdsn]\)\|\([gv]/.*/\)\|\(ig\[.*\]\)'
\ .'\)\+\s*$'
function! s:parse_shorthand_opts(expr)
let opts = {}
let expr = substitute(a:expr, '\s', '', 'g')
let regex = '^'. s:shorthand_regex
if empty(expr)
return opts
elseif expr !~ regex
call s:exit("Invalid expression: ". a:expr)
else
let match = matchlist(expr, regex)
for m in filter(match[ 1 : -1 ], '!empty(v:val)')
for key in ['lm', 'rm', 'l', 'r', 'stl', 's', '<', '>', 'iu', 'da', 'd', 'ms', 'm', 'ig', 'i', 'g', 'v', 'a']
if stridx(tolower(m), key) == 0
let rest = strpart(m, len(key))
if key == 'i' | let key = 'idt' | endif
if key == 'g' || key == 'v'
let rest = key.rest
let key = 'f'
endif
if key == 'idt' || index(['d', 'f', 'm', 'a'], key[0]) >= 0
let opts[key] = rest
elseif key == 'ig'
try
let arr = eval(rest)
if type(arr) == 3
let opts[key] = arr
else
throw 'Not an array'
endif
catch
call s:exit("Invalid ignore_groups: ". a:expr)
endtry
elseif key =~ '[<>]'
let opts['stl'] = key == '<'
else
let opts[key] = str2nr(rest)
endif
break
endif
endfor
endfor
endif
return s:normalize_options(opts)
endfunction
function! s:parse_args(args)
if empty(a:args)
return ['', '', {}, 0]
endif
let n = ''
let ch = ''
let args = a:args
let cand = ''
let opts = {}
" Poor man's option parser
let idx = 0
while 1
let midx = match(args, '\s*{.*}\s*$', idx)
if midx == -1 | break | endif
let cand = strpart(args, midx)
try
let [l, r, c, k, s, d, n] = ['l', 'r', 'c', 'k', 's', 'd', 'n']
let [L, R, C, K, S, D, N] = ['l', 'r', 'c', 'k', 's', 'd', 'n']
let o = eval(cand)
if type(o) == 4
let opts = o
if args[midx - 1 : midx] == '\ '
let midx += 1
endif
let args = strpart(args, 0, midx)
break
endif
catch
" Ignore
endtry
let idx = midx + 1
endwhile
" Invalid option dictionary
if len(substitute(cand, '\s', '', 'g')) > 2 && empty(opts)
call s:exit("Invalid option: ". cand)
else
let opts = s:normalize_options(opts)
endif
" Shorthand option notation
let sopts = matchstr(args, s:shorthand_regex)
if !empty(sopts)
let args = strpart(args, 0, len(args) - len(sopts))
let opts = extend(s:parse_shorthand_opts(sopts), opts)
endif
" Has /Regexp/?
let matches = matchlist(args, '^\(.\{-}\)\s*/\(.*\)/\s*$')
" Found regexp
if !empty(matches)
return [matches[1], s:test_regexp(matches[2]), opts, 1]
else
let tokens = matchlist(args, '^\([1-9][0-9]*\|-[0-9]*\|\*\*\?\)\?\s*\(.\{-}\)\?$')
" Try swapping n and ch
let [n, ch] = empty(tokens[2]) ? reverse(tokens[1:2]) : tokens[1:2]
" Resolving command-line ambiguity
" '\ ' => ' '
" '\' => ' '
if ch =~ '^\\\s*$'
let ch = ' '
" '\\' => '\'
elseif ch =~ '^\\\\\s*$'
let ch = '\'
endif
return [n, ch, opts, 0]
endif
endfunction
function! s:parse_filter(f)
let m = matchlist(a:f, '^\([gv]\)/\(.\{-}\)/\?$')
if empty(m)
return [0, '']
else
return [m[1] == 'g' ? 1 : -1, m[2]]
endif
endfunction
function! s:interactive_modes(bang)
return get(g:,
\ (a:bang ? 'easy_align_bang_interactive_modes' : 'easy_align_interactive_modes'),
\ (a:bang ? ['r', 'l', 'c'] : ['l', 'r', 'c']))
endfunction
function! s:alternating_modes(mode)
return a:mode ==? 'r' ? 'rl' : 'lr'
endfunction
function! s:update_lines(todo)
for [line, content] in items(a:todo)
call setline(line, s:rtrim(content))
endfor
endfunction
function! s:parse_nth(n)
let n = a:n
let recur = 0
if n == '*' | let [nth, recur] = [1, 1]
elseif n == '**' | let [nth, recur] = [1, 2]
elseif n == '-' | let nth = -1
elseif empty(n) | let nth = 1
elseif n == '0' || ( n != '-0' && n != string(str2nr(n)) )
call s:exit('Invalid N-th parameter: '. n)
else
let nth = n
endif
return [nth, recur]
endfunction
function! s:build_dict(delimiters, ch, regexp, opts)
if a:regexp
let dict = { 'pattern': a:ch }
else
if !has_key(a:delimiters, a:ch)
call s:exit('Unknown delimiter key: '. a:ch)
endif
let dict = copy(a:delimiters[a:ch])
endif
call extend(dict, a:opts)
let ml = get(dict, 'left_margin', ' ')
let mr = get(dict, 'right_margin', ' ')
if type(ml) == 0 | let ml = repeat(' ', ml) | endif
if type(mr) == 0 | let mr = repeat(' ', mr) | endif
call extend(dict, { 'ml': ml, 'mr': mr })
let dict.pattern = get(dict, 'pattern', a:ch)
let dict.delimiter_align =
\ get(dict, 'delimiter_align', get(g:, 'easy_align_delimiter_align', 'r'))[0]
let dict.indentation =
\ get(dict, 'indentation', get(g:, 'easy_align_indentation', 'k'))[0]
let dict.stick_to_left =
\ get(dict, 'stick_to_left', 0)
let dict.ignore_unmatched =
\ get(dict, 'ignore_unmatched', get(g:, 'easy_align_ignore_unmatched', 2))
let dict.ignore_groups =
\ get(dict, 'ignore_groups', get(dict, 'ignores', s:ignored_syntax()))
let dict.filter =
\ get(dict, 'filter', '')
return dict
endfunction
function! s:build_mode_sequence(expr, recur)
let [expr, recur] = [a:expr, a:recur]
let suffix = matchstr(a:expr, '\*\+$')
if suffix == '*'
let expr = expr[0 : -2]
let recur = 1
elseif suffix == '**'
let expr = expr[0 : -3]
let recur = 2
endif
return [tolower(expr), recur]
endfunction
function! s:process(range, mode, n, ch, opts, regexp, rules, bvis)
let [nth, recur] = s:parse_nth((empty(a:n) && exists('g:easy_align_nth')) ? g:easy_align_nth : a:n)
let dict = s:build_dict(a:rules, a:ch, a:regexp, a:opts)
let [mode_sequence, recur] = s:build_mode_sequence(
\ get(dict, 'align', recur == 2 ? s:alternating_modes(a:mode) : a:mode),
\ recur)
let ve = &virtualedit
set ve=all
let args = [
\ {}, split(mode_sequence, '\zs'),
\ {}, {}, a:range[0], a:range[1],
\ a:bvis ? min([virtcol("'<"), virtcol("'>")]) : 1,
\ (!recur && a:bvis) ? max([virtcol("'<"), virtcol("'>")]) : 0,
\ nth, recur, dict ]
let &ve = ve
while len(args) > 1
let args = call('s:do_align', args)
endwhile
" todo: lines to update
" summarize: arguments to s:summarize
return { 'todo': args[0], 'summarize': [ a:opts, recur, mode_sequence ] }
endfunction
function s:summarize(opts, recur, mode_sequence)
let copts = s:compact_options(a:opts)
let nbmode = s:interactive_modes(0)[0]
if !has_key(copts, 'a') && (
\ (a:recur == 2 && s:alternating_modes(nbmode) != a:mode_sequence) ||
\ (a:recur != 2 && (a:mode_sequence[0] != nbmode || len(a:mode_sequence) > 1))
\ )
call extend(copts, { 'a': a:mode_sequence })
endif
return copts
endfunction
function! s:align(bang, live, visualmode, first_line, last_line, expr)
" Heuristically determine if the user was in visual mode
if a:visualmode == 'command'
let vis = a:first_line == line("'<") && a:last_line == line("'>")
let bvis = vis && visualmode() == "\<C-V>"
elseif empty(a:visualmode)
let vis = 0
let bvis = 0
else
let vis = 1
let bvis = a:visualmode == "\<C-V>"
end
let range = [a:first_line, a:last_line]
let modes = s:interactive_modes(a:bang)
let mode = modes[0]
let s:live = a:live
let rules = s:easy_align_delimiters_default
if exists('g:easy_align_delimiters')
let rules = extend(copy(rules), g:easy_align_delimiters)
endif
let [n, ch, opts, regexp] = s:parse_args(a:expr)
let bypass_fold = get(g:, 'easy_align_bypass_fold', 0)
let ofm = &l:foldmethod
try
if bypass_fold | let &l:foldmethod = 'manual' | endif
if empty(n) && empty(ch) || s:live
let [mode, n, ch, opts, regexp] = s:interactive(range, copy(modes), n, ch, opts, rules, vis, bvis)
endif
if !s:live
let output = s:process(range, mode, n, ch, s:normalize_options(opts), regexp, rules, bvis)
call s:update_lines(output.todo)
let copts = call('s:summarize', output.summarize)
let g:easy_align_last_command = s:echon('', n, regexp, ch, copts, '')
endif
finally
if bypass_fold | let &l:foldmethod = ofm | endif
endtry
endfunction
function! easy_align#align(bang, live, visualmode, expr) range
try
call s:align(a:bang, a:live, a:visualmode, a:firstline, a:lastline, a:expr)
catch /^\%(Vim:Interrupt\|exit\)$/
if empty(a:visualmode)
echon "\r"
echon "\r"
else
normal! gv
endif
endtry
endfunction
let &cpo = s:cpo_save
unlet s:cpo_save