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Replace mode for flygrep (#1340)

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Wang Shidong 2018-02-04 22:01:16 +08:00 committed by GitHub
parent ef8a445d4e
commit 2e8843eb3d
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10 changed files with 279 additions and 119 deletions

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@ -1,5 +1,4 @@
language: python
dist: trusty
sudo: false

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@ -72,14 +72,24 @@ function! s:string2chars(str) abort
endfunction
let s:file['string2chars'] = function('s:string2chars')
function! s:strAllIndex(str, need) abort
let rst = []
function! s:strAllIndex(str, need, use_expr) abort
if a:use_expr
let rst = []
let idx = matchstrpos(a:str, a:need)
while idx[1] != -1
call add(rst, [idx[1], idx[2]])
let idx = matchstrpos(a:str, a:need, idx[2])
endwhile
return rst
else
let rst = []
let idx = match(a:str, "\\<" . a:need . "\\>")
while idx != -1
call add(rst, idx)
let idx = match(a:str, "\\<" . a:need . "\\>", idx + 1 + len(a:need))
endwhile
return rst
while idx != -1
call add(rst, [idx, idx+len(a:need)])
let idx = match(a:str, "\\<" . a:need . "\\>", idx + 1 + len(a:need))
endwhile
return rst
endif
endfunction
let s:file['strAllIndex'] = function('s:strAllIndex')

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@ -189,6 +189,31 @@ endfunction
let s:file['ls'] = function('s:ls')
"
" {
" 'filename' : {
" line1 : content,
" line2 : content,
" }
" }
function! s:updatefiles(files) abort
let failed = []
for fname in keys(a:files)
let buffer = readfile(fname)
for line in keys(a:files[fname])
let buffer[line - 1] = a:files[fname][line]
endfor
try
call writefile(buffer, fname, 'b')
catch
call add(failed, fname)
endtry
endfor
return failed
endfunction
let s:file['updateFiles'] = function('s:updatefiles')
function! SpaceVim#api#file#get() abort
return deepcopy(s:file)
endfunction

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@ -58,7 +58,7 @@ function! s:self.hi(info) abort
let cmd .= ' guifg=' . a:info.guifg
endif
let style = []
for sty in ['hold', 'italic', 'underline']
for sty in ['bold', 'italic', 'underline']
if get(a:info, sty, '') ==# '1'
call add(style, sty)
endif

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@ -359,7 +359,7 @@ function! SpaceVim#layers#core#statusline#get(...) abort
\ . '%#SpaceVim_statusline_b_SpaceVim_statusline_c#' . s:lsep . ' '
\ . '%#SpaceVim_statusline_c# %{unite#get_status_string()} '
elseif &filetype ==# 'SpaceVimFlyGrep'
return '%#SpaceVim_statusline_a_bold# FlyGrep %#SpaceVim_statusline_a_SpaceVim_statusline_b#' . s:lsep
return '%#SpaceVim_statusline_a_bold# FlyGrep%{SpaceVim#plugins#flygrep#mode()} %#SpaceVim_statusline_a_SpaceVim_statusline_b#' . s:lsep
\ . '%#SpaceVim_statusline_b# %{getcwd()} %#SpaceVim_statusline_b_SpaceVim_statusline_c#' . s:lsep
\ . '%#SpaceVim_statusline_c# %{SpaceVim#plugins#flygrep#lineNr()}'
elseif &filetype ==# 'TransientState'

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@ -16,7 +16,7 @@ endfunction
function! SpaceVim#layers#git#config() abort
let g:_spacevim_mappings_space.g = get(g:_spacevim_mappings_space, 'g', {'name' : '+VersionControl/git'})
if has('patch-8.0.0027') || has('nvim')
call SpaceVim#mapping#space#def('nnoremap', ['g', 's'], 'Gina status', 'git status', 1)
call SpaceVim#mapping#space#def('nnoremap', ['g', 's'], 'Gina status --opener=10split', 'git status', 1)
call SpaceVim#mapping#space#def('nnoremap', ['g', 'S'], 'Gina add %', 'stage current file', 1)
call SpaceVim#mapping#space#def('nnoremap', ['g', 'U'], 'Gina reset -q %', 'unstage current file', 1)
call SpaceVim#mapping#space#def('nnoremap', ['g', 'c'], 'Gina commit', 'edit git commit', 1)

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@ -7,5 +7,7 @@ function! SpaceVim#mapping#guide#theme#one#palette() abort
\ ['#2c323c', '#afd7d7', 114, 152],
\ ['#2c323c', '#ff8787', 114, 210],
\ ['#2c323c', '#d75f5f', 114, 167],
\ ['#2c323c', '#689d6a', 114, 72],
\ ['#2c323c', '#8f3f71', 114, 132],
\ ]
endfunction

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@ -16,7 +16,8 @@ let s:grepid = 0
" grep local funcs:{{{
" @vimlint(EVL103, 1, a:timer)
function! s:grep_timer(timer) abort
let cmd = s:get_search_cmd(join(split(s:grep_expr), '.*'))
let s:current_grep_pattern = join(split(s:grep_expr), '.*')
let cmd = s:get_search_cmd(s:current_grep_pattern)
call SpaceVim#logger#info('grep cmd: ' . string(cmd))
let s:grepid = s:JOB.start(cmd, {
\ 'on_stdout' : function('s:grep_stdout'),
@ -63,6 +64,8 @@ let s:MPT._handle_fly = function('s:flygrep')
" @vimlint(EVL103, 0, a:timer)
let s:filter_file = ''
function! s:start_filter() abort
let s:mode = 'f'
redrawstatus
let s:MPT._handle_fly = function('s:filter')
let s:MPT._prompt = {
\ 'mpt' : s:MPT._prompt.mpt,
@ -112,6 +115,20 @@ function! s:get_filter_cmd(expr) abort
endfunction
" }}}
let s:mode = ''
" replace local funcs {{{
function! s:start_replace() abort
let s:mode = 'r'
try
call matchdelete(s:hi_id)
catch
endtr
redrawstatus
let replace_text = s:current_grep_pattern
call SpaceVim#plugins#iedit#start({'expr' : replace_text})
endfunction
" }}}
" API: MPT._prompt {{{
let s:MPT._prompt.mpt = '➭ '
" }}}
@ -260,6 +277,7 @@ let s:MPT._function_key = {
\ "\<LeftMouse>" : function('s:move_cursor'),
\ "\<2-LeftMouse>" : function('s:double_click'),
\ "\<C-f>" : function('s:start_filter'),
\ "\<C-r>" : function('s:start_replace'),
\ }
if has('nvim')
@ -284,7 +302,7 @@ endif
" files: files for grep, @buffers means listed buffer.
" dir: specific a directory for grep
function! SpaceVim#plugins#flygrep#open(agrv) abort
noautocmd rightbelow split __flygrep__
rightbelow split __flygrep__
setlocal buftype=nofile bufhidden=wipe nobuflisted nolist noswapfile nowrap cursorline nospell nonu norelativenumber
let save_tve = &t_ve
setlocal t_ve=
@ -322,4 +340,9 @@ function! SpaceVim#plugins#flygrep#lineNr() abort
return line('.') . '/' . line('$')
endif
endfunction
function! SpaceVim#plugins#flygrep#mode()
return empty(s:mode) ? '' : '(' . s:mode . ')'
endfunction
" }}}

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@ -13,17 +13,29 @@ let s:mode = ''
let s:hi_id = ''
let s:Operator = ''
" prompt
let s:symbol_begin = ''
let s:symbol_cursor = ''
let s:symbol_end = ''
let s:VIMH = SpaceVim#api#import('vim#highlight')
let s:STRING = SpaceVim#api#import('data#string')
let s:cursor_stack = []
let s:iedit_hi_info = [
\ {
\ 'name' : 'IeditPurpleBold',
\ 'guibg' : '',
\ 'guifg' : '#d3869b',
\ 'ctermbg' : '',
\ 'ctermfg' : 175,
\ 'bold' : 1,
\ },
\ {
\ 'name' : 'IeditBlueBold',
\ 'guibg' : '',
\ 'guifg' : '#83a598',
\ 'ctermbg' : '',
\ 'ctermfg' : 109,
\ 'bold' : 1,
\ }
\ ]
function! s:highlight_cursor() abort
let info = {
@ -35,9 +47,13 @@ function! s:highlight_cursor() abort
\ }
hi def link SpaceVimGuideCursor Cursor
call s:VIMH.hi(info)
for pos in s:stack
call matchaddpos('Underlined', [pos])
call matchadd('SpaceVimGuideCursor', '\%' . pos[0] . 'l\%' . (pos[1] + len(s:symbol_begin)) . 'c', 99999)
for i in range(len(s:stack))
if i == s:index
call matchaddpos('IeditPurpleBold', [s:stack[i]])
else
call matchaddpos('IeditBlueBold', [s:stack[i]])
endif
call matchadd('SpaceVimGuideCursor', '\%' . s:stack[i][0] . 'l\%' . (s:stack[i][1] + len(s:cursor_stack[i].begin)) . 'c', 99999)
endfor
endfunction
@ -50,24 +66,38 @@ function! SpaceVim#plugins#iedit#start(...)
let save_cl = &l:cursorline
setlocal nocursorline
setlocal t_ve=
call s:VIMH.hi(s:iedit_hi_info[0])
call s:VIMH.hi(s:iedit_hi_info[1])
let s:mode = 'n'
let w:spacevim_iedit_mode = s:mode
let w:spacevim_statusline_mode = 'in'
let curpos = getcurpos()
let argv = get(a:000, 0, '')
let save_reg_k = @k
if get(a:000, 0, 0) == 1
let use_expr = 0
if !empty(argv) && type(argv) == 4
if has_key(argv, 'expr')
let use_expr = 1
let symbol = argv.expr
elseif has_key(argv, 'word')
let symbol = argv.word
endif
elseif type(argv) == 0 && argv == 1
normal! gv"ky
let symbol = split(@k, "\n")[0]
else
normal! viw"ky
let symbol = split(@k, "\n")[0]
endif
call setpos('.', curpos)
let symbol = split(@k, "\n")[0]
let @k = save_reg_k
echomsg string(a:000)
echom symbol
call setpos('.', curpos)
let begin = get(a:000, 1, 1)
let end = get(a:000, 2, line('$'))
call s:parse_symbol(begin, end, symbol)
if use_expr
call s:parse_symbol(begin, end, symbol, 1)
else
call s:parse_symbol(begin, end, symbol)
endif
call s:highlight_cursor()
redrawstatus!
while s:mode != ''
@ -116,55 +146,75 @@ function! s:handle_normal(char) abort
redrawstatus!
elseif a:char == 9 " <tab>
if index(keys(s:toggle_stack), s:index . '') == -1
call extend(s:toggle_stack, {s:index : s:stack[s:index]})
call extend(s:toggle_stack, {s:index : [s:stack[s:index], s:cursor_stack[s:index]]})
call remove(s:stack, s:index)
call remove(s:cursor_stack, s:index)
else
call insert(s:stack, s:toggle_stack[s:index] , s:index)
call insert(s:stack, s:toggle_stack[s:index][0] , s:index)
call insert(s:cursor_stack, s:toggle_stack[s:index][1] , s:index)
call remove(s:toggle_stack, s:index)
endif
elseif a:char == 97 " a
let s:mode = 'i'
let w:spacevim_iedit_mode = s:mode
let w:spacevim_statusline_mode = 'ii'
let s:symbol_begin = s:symbol_begin . s:symbol_cursor
let s:symbol_cursor = matchstr(s:symbol_end, '^.')
let s:symbol_end = substitute(s:symbol_end, '^.', '', 'g')
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = s:cursor_stack[i].begin . s:cursor_stack[i].cursor
let s:cursor_stack[i].cursor = matchstr(s:cursor_stack[i].end, '^.')
let s:cursor_stack[i].end = substitute(s:cursor_stack[i].end, '^.', '', 'g')
endfor
redrawstatus!
elseif a:char == "\<Left>"
let s:symbol_end = s:symbol_cursor . s:symbol_end
let s:symbol_cursor = matchstr(s:symbol_begin, '.$')
let s:symbol_begin = substitute(s:symbol_begin, '.$', '', 'g')
for i in range(len(s:cursor_stack))
if !empty(s:cursor_stack[i].begin)
let s:cursor_stack[i].end = s:cursor_stack[i].cursor . s:cursor_stack[i].end
let s:cursor_stack[i].cursor = matchstr(s:cursor_stack[i].begin, '.$')
let s:cursor_stack[i].begin = substitute(s:cursor_stack[i].begin, '.$', '', 'g')
endif
endfor
elseif a:char == "\<Right>"
let s:symbol_begin = s:symbol_begin . s:symbol_cursor
let s:symbol_cursor = matchstr(s:symbol_end, '^.')
let s:symbol_end = substitute(s:symbol_end, '^.', '', 'g')
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = s:cursor_stack[i].begin . s:cursor_stack[i].cursor
let s:cursor_stack[i].cursor = matchstr(s:cursor_stack[i].end, '^.')
let s:cursor_stack[i].end = substitute(s:cursor_stack[i].end, '^.', '', 'g')
endfor
elseif a:char == 48 " 0
let s:symbol_end = substitute(s:symbol_begin . s:symbol_cursor . s:symbol_end, '^.', '', 'g')
let s:symbol_cursor = matchstr(s:symbol_begin, '^.')
let s:symbol_begin = ''
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].end = substitute(s:cursor_stack[i].begin . s:cursor_stack[i].cursor . s:cursor_stack[i].end , '^.', '', 'g')
let s:cursor_stack[i].cursor = matchstr(s:cursor_stack[i].begin, '^.')
let s:cursor_stack[i].begin = ''
endfor
elseif a:char == 36 " $
let s:symbol_begin = substitute(s:symbol_begin . s:symbol_cursor . s:symbol_end, '.$', '', 'g')
let s:symbol_cursor = matchstr(s:symbol_end, '.$')
let s:symbol_end = ''
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = substitute(s:cursor_stack[i].begin . s:cursor_stack[i].cursor . s:cursor_stack[i].end , '.$', '', 'g')
let s:cursor_stack[i].cursor = matchstr(s:cursor_stack[i].end, '.$')
let s:cursor_stack[i].end = ''
endfor
elseif a:char == 68 " D
let s:symbol_begin = ''
let s:symbol_cursor = ''
let s:symbol_end = ''
call s:replace_symbol(s:symbol_begin . s:symbol_cursor . s:symbol_end)
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = ''
let s:cursor_stack[i].cursor = ''
let s:cursor_stack[i].end = ''
endfor
call s:replace_symbol()
elseif a:char == 112 " p
let s:symbol_begin = @"
let s:symbol_cursor = ''
let s:symbol_end = ''
call s:replace_symbol(s:symbol_begin . s:symbol_cursor . s:symbol_end)
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = @"
let s:cursor_stack[i].cursor = ''
let s:cursor_stack[i].end = ''
endfor
call s:replace_symbol()
elseif a:char == 83 " S
let s:symbol_begin = ''
let s:symbol_cursor = ''
let s:symbol_end = ''
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = ''
let s:cursor_stack[i].cursor = ''
let s:cursor_stack[i].end = ''
endfor
let s:mode = 'i'
let w:spacevim_iedit_mode = s:mode
let w:spacevim_statusline_mode = 'ii'
redrawstatus!
call s:replace_symbol(s:symbol_begin . s:symbol_cursor . s:symbol_end)
call s:replace_symbol()
elseif a:char == 71 " G
exe s:stack[-1][0]
elseif a:char == 103 "g
@ -181,14 +231,14 @@ function! s:handle_normal(char) abort
else
let s:index += 1
endif
call cursor(s:stack[s:index][0], s:stack[s:index][1] + len(s:symbol_begin))
call cursor(s:stack[s:index][0], s:stack[s:index][1] + len(s:cursor_stack[s:index].begin))
elseif a:char == 78 " N
if s:index == 0
let s:index = len(s:stack) - 1
else
let s:index -= 1
endif
call cursor(s:stack[s:index][0], s:stack[s:index][1] + len(s:symbol_begin))
call cursor(s:stack[s:index][0], s:stack[s:index][1] + len(s:cursor_stack[s:index].begin))
endif
silent! call s:highlight_cursor()
endfunction
@ -217,87 +267,126 @@ function! s:handle_insert(char) abort
redraw!
redrawstatus!
return
elseif a:char == 23
let s:symbol_begin = ''
elseif a:char == 11
let s:symbol_cursor = ''
let s:symbol_end = ''
elseif a:char == 23 " <c-w>
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = ''
endfor
elseif a:char == 11 " <c-k>
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].cursor = ''
let s:cursor_stack[i].end = ''
endfor
elseif a:char == "\<bs>"
let s:symbol_begin = substitute(s:symbol_begin, '.$', '', 'g')
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = substitute(s:cursor_stack[i].begin, '.$', '', 'g')
endfor
elseif a:char == "\<Left>"
let s:symbol_end = s:symbol_cursor . s:symbol_end
let s:symbol_cursor = matchstr(s:symbol_begin, '.$')
let s:symbol_begin = substitute(s:symbol_begin, '.$', '', 'g')
for i in range(len(s:cursor_stack))
if !empty(s:cursor_stack[i].begin)
let s:cursor_stack[i].end = s:cursor_stack[i].cursor . s:cursor_stack[i].end
let s:cursor_stack[i].cursor = matchstr(s:cursor_stack[i].begin, '.$')
let s:cursor_stack[i].begin = substitute(s:cursor_stack[i].begin, '.$', '', 'g')
endif
endfor
elseif a:char == "\<Right>"
let s:symbol_begin = s:symbol_begin . s:symbol_cursor
let s:symbol_cursor = matchstr(s:symbol_end, '^.')
let s:symbol_end = substitute(s:symbol_end, '^.', '', 'g')
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin = s:cursor_stack[i].begin . s:cursor_stack[i].cursor
let s:cursor_stack[i].cursor = matchstr(s:cursor_stack[i].end, '^.')
let s:cursor_stack[i].end = substitute(s:cursor_stack[i].end, '^.', '', 'g')
endfor
else
let s:symbol_begin .= nr2char(a:char)
for i in range(len(s:cursor_stack))
let s:cursor_stack[i].begin .= nr2char(a:char)
endfor
endif
call s:replace_symbol(s:symbol_begin . s:symbol_cursor . s:symbol_end)
call s:replace_symbol()
silent! call s:highlight_cursor()
endfunction
function! s:parse_symbol(begin, end, symbol) abort
function! s:parse_symbol(begin, end, symbol, ...) abort
let use_expr = get(a:000, 0, 0)
let len = len(a:symbol)
let cursor = [line('.'), col('.')]
for l in range(a:begin, a:end)
let line = getline(l)
let idx = s:STRING.strAllIndex(line, a:symbol)
for pos_c in idx
call add(s:stack, [l, pos_c + 1, len])
if l == cursor[0] && pos_c + 1 <= cursor[1] && pos_c + 1 + len >= cursor[1]
let idx = s:STRING.strAllIndex(line, a:symbol, use_expr)
for [pos_a, pos_b] in idx
call add(s:stack, [l, pos_a + 1, pos_b - pos_a])
if len(idx) > 1 && l == cursor[0] && pos_a + 1 <= cursor[1] && pos_a + 1 + len >= cursor[1]
let s:index = len(s:stack) - 1
if pos_c + 1 < cursor[1]
let s:symbol_begin = line[pos_c : cursor[1] - 2]
else
let s:symbol_begin = ''
endif
let s:symbol_cursor = line[ cursor[1] - 1 : cursor[1] - 1]
if pos_c + 1 + len > cursor[1]
let s:symbol_end = line[ cursor[1] : pos_c + len - 1]
else
let s:symbol_end = ''
endif
endif
call add(s:cursor_stack,
\ {
\ 'begin' : line[pos_a : pos_b - 2],
\ 'cursor' : line[pos_b - 1 : pos_b - 1],
\ 'end' : '',
\ }
\ )
endfor
endfor
if s:index == -1 && !empty(s:stack)
let s:index = 0
call cursor(s:stack[0][0], s:stack[0][1])
endif
let g:wsd = [s:stack, s:cursor_stack]
endfunction
" TODO current only support one line symbol
function! s:replace_symbol(symbol) abort
let lines = split(a:symbol, "\n")
if len(lines) > 1
let len = len(s:stack)
for idx in range(len)
let pos = s:stack[len-1-idx]
let line = getline(pos[0])
if pos[1] == 1
let begin = ''
else
let begin = line[:pos[1] - 2]
function! s:replace_symbol() abort
let line = 0
let pre = ''
let idxs = []
for i in range(len(s:stack))
if s:stack[i][0] != line
if !empty(idxs)
let end = getline(line)[s:stack[i-1][1] + s:stack[i-1][2] - 1: ]
let pre .= end
endif
let end = line[pos[1] + pos[2]:]
let line = begin . lines[0] . end
call setline(pos[0], line)
let s:stack[len-1-idx][2] = len(lines[0])
endfor
else
let len = len(s:stack)
for idx in range(len)
let pos = s:stack[len-1-idx]
let line = getline(pos[0])
if pos[1] == 1
let begin = ''
call s:fixstack(idxs)
call setline(line, pre)
let idxs = []
let line = s:stack[i][0]
let begin = s:stack[i][1] == 1 ? '' : getline(line)[:s:stack[i][1] - 2]
let pre = begin . s:cursor_stack[i].begin . s:cursor_stack[i].cursor . s:cursor_stack[i].end
else
let line = s:stack[i][0]
if i == 0
let pre = (s:stack[i][1] == 1 ? '' : getline(line)[:s:stack[i][1] - 2]) . s:cursor_stack[i].begin . s:cursor_stack[i].cursor . s:cursor_stack[i].end
else
let begin = line[:pos[1] - 2]
let a = s:stack[i-1][1] + s:stack[i-1][2] - 1
let b = s:stack[i][1] - 2
if a > b
let next = ''
else
let next = getline(line)[ a : b ]
endif
let pre .= next . s:cursor_stack[i].begin . s:cursor_stack[i].cursor . s:cursor_stack[i].end
endif
let end = line[pos[1] + pos[2] - 1:]
let line = begin . a:symbol . end
call setline(pos[0], line)
let s:stack[len-1-idx][2] = len(a:symbol)
endfor
endif
call add(idxs, [i, len(s:cursor_stack[i].begin . s:cursor_stack[i].cursor . s:cursor_stack[i].end)])
endfor
if !empty(idxs)
let end = getline(line)[s:stack[i][1] + s:stack[i][2] - 1: ]
let pre .= end
endif
call s:fixstack(idxs)
call setline(line, pre)
endfunction
" [idx, newlen]
" same line
" [[1,6], [2,6], [3,6]]
function! s:fixstack(idxs) abort
" for [idx, len] in idxs
" let s:stack[idx]
" let s:stack[idx][2] = len
" endfor
let change = 0
for i in range(len(a:idxs))
let s:stack[a:idxs[i][0]][1] += change
let change += a:idxs[i][1] - s:stack[a:idxs[i][0]][2]
let s:stack[a:idxs[i][0]][2] = a:idxs[i][1]
endfor
endfunction
" vim:set et sw=2 cc=80 nowrap:

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@ -0,0 +1,12 @@
Execute ( SpaceVim api: data#string ):
let str = SpaceVim#api#import('data#string')
AssertEqual str.trim(' s b '), 's b'
AssertEqual str.trim_start(' s b '), 's b '
AssertEqual str.trim_end(' s b '), ' s b'
AssertEqual str.fill('s b', 10), 's b '
AssertEqual str.fill_middle('s b', 10), ' s b '
AssertEqual str.string2chars(' a b '), [' ', 'a', ' ', 'b', ' ']
AssertEqual str.strAllIndex('hello spacevim hello', 'hello', 0), [[0, 5], [15, 20]]
AssertEqual str.strAllIndex('hello spacevim hello', 'he.*', 1), [[0, 20]]
AssertEqual str.strAllIndex('hello spacevim hello', 'he[^ ]*', 1), [[0, 5], [15, 20]]
AssertEqual str.strAllIndex('let s:cursor_stack[i].end = s:cursor_stack[i].cursor . s:cursor_stack[i].end', 's.cursor[^_]*', 1), [[0, 5], [15, 20]]