diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..926ccaa
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+doc/tags
diff --git a/README.md b/README.md
index a797540..6882515 100644
--- a/README.md
+++ b/README.md
@@ -4,11 +4,13 @@ Insert or delete brackets, parens, quotes in pair.
 
 Installation
 ------------
-copy plugin/auto-pairs.vim to ~/.vim/plugin
 
-or if you are using `pathogen`:
-
-```git clone git://github.com/jiangmiao/auto-pairs.git ~/.vim/bundle/auto-pairs```
+* Manual
+  * Copy `plugin/auto-pairs.vim` to `~/.vim/plugin`
+* [Pathogen](https://github.com/tpope/vim-pathogen)
+  * `git clone git://github.com/jiangmiao/auto-pairs.git ~/.vim/bundle/auto-pairs`
+* [Vundle](https://github.com/VundleVim/Vundle.vim)
+  * `Plugin 'jiangmiao/auto-pairs'`
 
 Features
 --------
@@ -27,7 +29,10 @@ Features
         input: {|} (press <CR> at |)
         output: {
             |
-        }
+        }          (press } to close the pair)
+        output: {
+        }|         (the inserted blank line will be deleted)
+
 
 *   Insert spaces before closing characters, only for [], (), {}
 
@@ -57,16 +62,17 @@ Features
 
 *   Fast Wrap
 
-        input: |'hello' (press (<M-e> at |)
-        output: ('hello')
-
-        wrap string, only support c style string
-        input: |'h\\el\'lo' (press (<M-e> at |)
-        output ('h\\ello\'')
-
         input: |[foo, bar()] (press (<M-e> at |)
         output: ([foo, bar()])
 
+*   Quick move char to closed pair
+
+        input: (|){["foo"]} (press <M-}> at |)
+        output: ({["foo"]}|)
+
+        input: |[foo, bar()] (press (<M-]> at |)
+        output: ([foo, bar()]|)
+
 *   Quick jump to closed pair.
 
         input:
@@ -81,25 +87,6 @@ Features
 
         }|
 
-*   Support ``` ''' and """
-
-        input:
-            '''
-
-        output:
-            '''|'''
-
-*   Delete Repeated Pairs in one time
-
-        input: """|""" (press <BS> at |)
-        output: |
-
-        input: {{|}} (press <BS> at |)
-        output: |
-
-        input: [[[[[[|]]]]]] (press <BS> at |)
-        output: |
-
 *  Fly Mode
 
         input: if(a[3)
@@ -129,6 +116,11 @@ Features
 
         See Fly Mode section for details
 
+*  Multibyte Pairs
+        
+        Support any multibyte pairs such as <!-- -->, <% %>, """ """
+        See multibyte pairs section for details
+
 Fly Mode
 --------
 Fly Mode will always force closed-pair jumping instead of inserting. only for ")", "}", "]"
@@ -167,7 +159,7 @@ Options
 -------
 *   g:AutoPairs
 
-        Default: {'(':')', '[':']', '{':'}',"'":"'",'"':'"', '`':'`'}
+        Default: {'(':')', '[':']', '{':'}',"'":"'",'"':'"', "`":"`", '```':'```', '"""':'"""', "'''":"'''"}
 
 *   b:AutoPairs
 
@@ -256,6 +248,13 @@ Options
         Sets the characters to stop auto closing. For example, when set to
         ['\', '#'], the plugin will not automatically close `#'`
 
+*   g:AutoPairsMoveCharacter
+
+        Default: "()[]{}\"'"
+
+        Map <M-(> <M-)> <M-[> <M-]> <M-{> <M-}> <M-"> <M-'> to
+        move character under the cursor to the pair.
+
 Buffer Level Pairs Setting
 --------------------------
 
@@ -265,6 +264,108 @@ eg:
 
     " When the filetype is FILETYPE then make AutoPairs only match for parenthesis
     au Filetype FILETYPE let b:AutoPairs = {"(": ")"}
+    au FileType php      let b:AutoPairs = AutoPairsDefine({'<?' : '?>', '<?php': '?>'})
+
+Multibyte Pairs
+---------------
+
+    The default pairs is {'(':')', '[':']', '{':'}',"'":"'",'"':'"', '`':'`'}
+    You could also define multibyte pairs such as <!-- -->, <% %> and so on
+
+* Function AutoPairsDefine(addPairs:dict[, removeOpenPairList:list])
+
+        add or delete pairs base on g:AutoPairs
+
+        eg:
+            au FileType html let b:AutoPairs = AutoPairsDefine({'<!--' : '-->'}, ['{'])
+            add <!-- --> pair and remove '{' for html file
+
+        the pair implict start with \V, so if want to match start of line ^ should be write in \^ vim comment {'\^"': ''}
+
+* General usage
+
+        au FileType php      let b:AutoPairs = AutoPairsDefine({'<?' : '?>', '<?php': '?>'})
+
+        the first key of closed pair ? will be mapped
+
+        pairs: '<?' : '?>', '<?php': '?>'
+        input: <?
+        output: <?|?>
+
+        input: <?php
+        output: <?php|?>
+
+        input: he<?php|?> (press <BS> at|)
+        output: he|
+
+        input: <?php|?> (press ? at|)
+        output: <?php?>|
+
+        pair: '[[':']]'
+        input: [[|]] (press <BS>)
+        output: | ([[ and ]] will be deleted the [['s priority is higher than [ for it's longer)
+
+* Modifier
+
+        The text after //  in close pair is modifiers
+
+        n - do not map the first charactor of closed pair to close key
+        m - close key jumps through multi line
+        s - close key jumps only in the same line
+        k[KEY] - map the close key to [KEY]
+
+            by default if open key equals close key the multi line is turn off
+
+            "<?": "?>"      ? jumps only in the same line
+            "<?": "?>//m"   force ? jumping through multi line
+            "<?php":"?>"    ? will jump through multi line
+            "<?php":"?>//s" force ? only jumping in the same line
+            "<?": "?>//n"   do not jump totally
+            "<?": "?>//k]"  use key ] to jump through ?>
+
+        for 'begin' 'end' pair, e is a charactor, if map e to jump will be annoy, so use modifier 'n' to skip key map
+
+        au FileType ruby     let b:AutoPairs = AutoPairsDefine({'begin': 'end//n]'})
+
+
+        input: begin
+        output: begin|end
+
+        input: begin|end (press <BS> on |)
+        output: |
+
+        input: begin|end (press e on |)
+        output: begineend (will not jump for e is not mapped)
+
+* Advanced usage
+
+        au FileType rust     let b:AutoPairs = AutoPairsDefine({'\w\zs<': '>'})
+
+        if press < after a word will generate the pair
+
+        when use regexp MUST use \zs to prevent catching
+        if use '\w<' without \zs,  for text hello<|> press <BS> on | will output 'hell', the 'o' has been deleted
+
+        pair: '\w\zs<': '>'
+        input: h <
+        output: h <
+
+        input: h<
+        output: h<|>
+
+        input: h<|> press <BS>
+        output: h|
+
+        pair: '\w<': '>' (WRONG pair which missed \zs)
+        input: h<|> press <BS>
+        output: | (charactor 'h' is deleted)
+
+
+        the 'begin' 'end' pair write in
+
+        au FileType ruby     let b:AutoPairs = AutoPairsDefine({'\v(^|\W)\zsbegin': 'end//n'})
+
+        will be better, only auto pair when at start of line or follow non-word text
 
 TroubleShooting
 ---------------
@@ -291,7 +392,7 @@ TroubleShooting
     To fix the issue, you need remap or disable the related shortcut.
 
 Known Issues
------------------------
+------------
 Breaks '.' - [issue #3](https://github.com/jiangmiao/auto-pairs/issues/3)
 
     Description: After entering insert mode and inputing `[hello` then leave insert
diff --git a/doc/AutoPairs.txt b/doc/AutoPairs.txt
new file mode 100644
index 0000000..afe589e
--- /dev/null
+++ b/doc/AutoPairs.txt
@@ -0,0 +1,356 @@
+*AutoPairs.txt*  Insert or delete brackets, parens, quotes in pair
+
+Author:  jiangmiao
+License: MIT
+URL: https://github.com/jiangmiao/auto-pairs
+
+==============================================================================
+CONTENTS                                                    *autopairs-contents*
+
+    1. Installation ............................. |autopairs-installation|
+    2. Features ..................................... |autopairs-features|
+    3. Fly Mode ..................................... |autopairs-fly-mode|
+    4. Shortcuts ................................... |autopairs-shortcuts|
+    5. Options ....................................... |autopairs-options|
+    6. Troubleshooting ......................  |autopairs-troubleshooting|
+
+==============================================================================
+1. Introduction                                         *autopairs-installation*
+
+Copy `plugin/auto-pairs.vim` to `~/.vim/plugin`.
+
+Or if you are using `pathogen`: >
+
+    git clone git://github.com/jiangmiao/auto-pairs.git ~/.vim/bundle/auto-pairs
+
+==============================================================================
+2. Features                                                 *autopairs-features*
+
+Insert in pair: >
+
+        input: [
+        output: [|]
+
+Delete in pair: >
+
+        input: foo[<BS>]
+        output: foo
+
+Insert new indented line after Return: >
+
+        input: {|} (press <CR> at |)
+        output: {
+            |
+        }
+
+Insert spaces before closing characters, only for [], (), {}: >
+
+        input: {|} (press <SPACE> at |)
+        output: { | }
+
+        input: {|} (press <SPACE>foo} at |)
+        output: { foo }|
+
+        input: '|' (press <SPACE> at |)
+        output: ' |'
+
+Skip ' when inside a word: >
+
+        input: foo| (press ' at |)
+        output: foo'
+
+Skip closed bracket: >
+
+        input: []
+        output: []
+
+Ignore auto pair when previous character is '\': >
+
+        input: "\'
+        output: "\'"
+
+Fast Wrap: >
+
+        input: |'hello' (press (<M-e> at |)
+        output: ('hello')
+
+    Wrap string, only support c style string.
+        input: |'h\\el\'lo' (press (<M-e> at |)
+        output ('h\\ello\'')
+
+        input: |[foo, bar()] (press (<M-e> at |)
+        output: ([foo, bar()])
+
+Quick jump to closed pair: >
+
+        input:
+        {
+            something;|
+        }
+
+        (press } at |)
+
+        output:
+        {
+
+        }|
+
+Support ```, ''' and """: >
+
+        input:
+            '''
+
+        output:
+            '''|'''
+
+Delete Repeated Pairs in one time: >
+
+        input: """|""" (press <BS> at |)
+        output: |
+
+        input: {{|}} (press <BS> at |)
+        output: |
+
+        input: [[[[[[|]]]]]] (press <BS> at |)
+        output: |
+
+Fly Mode (|autopairs-flymode|): >
+
+        input: if(a[3)
+        output: if(a[3])| (In Fly Mode)
+        output: if(a[3)]) (Without Fly Mode)
+
+        input:
+        {
+            hello();|
+            world();
+        }
+
+        (press } at |)
+
+        output:
+        {
+            hello();
+            world();
+        }|
+
+        (then press <M-b> at | to do backinsert)
+        output:
+        {
+            hello();}|
+            world();
+        }
+
+        See |Fly Mode| section for details
+
+==============================================================================
+3. Fly Mode                                                  *autopairs-flymode*
+
+Fly Mode will always force closed-pair jumping instead of inserting. Only for
+")", "}", "]". If jumps in mistake, you can use |g:AutoPairsBackInsert| (default
+Key: <M-b>) to jump back and insert closed pair.
+
+The most situation maybe you want to insert single closed pair in the string,
+eg: >
+
+    ")"
+
+Fly Mode is DISABLED by default. To enable Fly Mode add following to your
+'.vimrc': >
+
+    let g:AutoPairsFlyMode = 1
+
+Default Options: >
+
+    let g:AutoPairsFlyMode = 0
+    let g:AutoPairsShortcutBackInsert = '<M-b>'
+
+==============================================================================
+4. Shortcuts                                             *autopairs-shortcuts*
+
+System Shortcuts:
+    <CR> : Insert new indented line after return if cursor in blank brackets
+           or quotes.
+    <BS> : Delete brackets in pair
+    <M-p>: Toggle Autopairs (|g:AutoPairsShortcutToggle|)
+    <M-e>: Fast Wrap (|g:AutoPairsShortcutFastWrap|)
+    <M-n>: Jump to next closed pair (|g:AutoPairsShortcutJump|)
+    <M-b>: BackInsert (|g:AutoPairsShortcutBackInsert|)
+
+
+    To rebind keys <M-p>, <M-e> or <M-n> or in case of conflicts with
+    another keys:
+
+        let g:AutoPairsShortcutToggle = '<another key>'
+
+    If the key is empty string '', then the shortcut will be disabled.
+
+==============================================================================
+5. Options                                                 *autopairs-options*
+
+                                                                 *g:AutoPairs*
+|g:AutoPairs|                                                             dict
+
+Default: >
+    {'(':')', '[':']', '{':'}',"'":"'",'"':'"', '`':'`'}
+
+Specifies which symbols should be automatically paired.
+
+To append new pairs without overwriting defaults, add values in your `.vimrc`.:
+
+    let g:AutoPairs['<']='>'
+
+This example will enable matching of `<` with `>`.
+
+
+                                                                  *b:AutoPairs*
+|b:AutoPairs|                                                              dict
+
+Default: |g:AutoPairs|
+
+Buffer level pairs set.
+
+You can set |b:AutoPairs| before |BufEnter|: >
+
+    au Filetype FILETYPE let b:AutoPairs = {"(": ")"}
+
+This sets |AutoPairs| to only match for parenthesis for 'FILETYPE'.
+
+
+
+                                                    *g:AutoPairsShortcutToggle*
+|g:AutoPairsShortcutToggle|                                              string
+
+Default: <M-p>
+
+The shortcut to toggle autopairs.
+
+
+
+                                                  *g:AutoPairsShortcutFastWrap*
+|g:AutoPairsShortcutFastWrap|                                            string
+
+Default: <M-e>
+
+Fast wrap the word. All pairs will be considered as a block (including <>).
+
+        (|)'hello' after fast wrap at |, the word will be ('hello')
+        (|)<hello> after fast wrap at |, the word will be (<hello>)
+
+
+
+                                                      *g:AutoPairsShortcutJump*
+|g:AutoPairsShortcutJump|                                                string
+
+Default: <M-n>
+
+Jump to the next closed pair.
+
+
+                                                *g:AutoPairsShortcutBackInsert*
+|g:AutoPairsShortcutBackInsert|                                          string
+
+Default: <M-b>
+
+Work with |autopairs-flymode|, insert the key at the Fly Mode jumped position.
+
+
+
+                                                             *g:AutoPairsMapBS*
+|g:AutoPairsMapBS|                                                          int
+
+Default: 1
+
+Map <BS> to delete brackets and quotes in pair, executes:
+
+    inoremap <buffer> <silent> <BS> <C-R>=AutoPairsDelete()<CR>
+
+
+                                                             *g:AutoPairsMapCh*
+|g:AutoPairsMapCh|                                                          int
+
+Default: 1
+
+Map <C-h> to delete brackets and quotes in pair.
+
+
+                                                             *g:AutoPairsMapCR*
+|g:AutoPairsMapCR|                                                          int
+
+Default: 1
+
+Map <CR> to insert a new indented line if cursor in (|), {|} [|], '|', "|".
+Executes:
+
+    inoremap <buffer> <silent> <CR> <C-R>=AutoPairsReturn()<CR>
+
+
+                                                        *g:AutoPairsCenterLine*
+|g:AutoPairsCenterLine|                                                     int
+
+Default: 1
+
+When |g:AutoPairsMapCR| is on, center current line after return if the line
+is at the bottom 1/3 of the window.
+
+
+                                                          *g:AutoPairsMapSpace*
+|g:AutoPairsMapSpace|                                                       int
+
+Default: 1
+
+Map <space> to insert a space after the opening character and before the
+closing one.
+
+Executes:
+
+    inoremap <buffer> <silent> <CR> <C-R>=AutoPairsSpace()<CR>
+
+
+                                                           *g:AutoPairsFlyMode*
+|g:AutoPairsFlyMode|                                                        int
+
+Default: 0
+
+Set it to 1 to enable |autopairs-flymode|.
+
+
+                                                    *g:AutoPairsMultilineClose*
+|g:AutoPairsMultilineClose|                                                 int
+
+Default: 1
+
+When you press the key for the closing pair (e.g. `)`) it jumps past it.
+If set to 1, then it'll jump to the next line, if there is only 'whitespace'.
+If set to 0, then it'll only jump to a closing pair on the same line.
+
+==============================================================================
+6. Troubleshooting                                 *autopairs-troubleshooting*
+
+This plugin remaps keys `([{'"}]) <BS>`
+
+If auto pairs cannot work, use |:imap| to check if the map is corrected.
+
+The correct map should be: >
+
+    <C-R>=AutoPairsInsert("\(")<CR>
+
+Or the plugin conflicts with some other plugins. Use command: >
+
+    :call AutoPairsInit() to remap the keys.
+
+--- How to insert parens purely? ---
+
+There are 3 ways:
+
+    1. Use Ctrl-V ) to insert paren without trigger the plugin.
+
+    2. Use Alt-P to turn off the plugin.
+
+    3. Use DEL or <C-O>x to delete the character insert by plugin.
+
+--- Swedish Character Conflict ---
+
+Because AutoPairs uses Meta(Alt) key as a shortcut, it conflicts with some
+Swedish character such as å. To fix the issue, you need remap or disable the
+related shortcut.
diff --git a/plugin/auto-pairs.vim b/plugin/auto-pairs.vim
index afe55c3..28c2f25 100644
--- a/plugin/auto-pairs.vim
+++ b/plugin/auto-pairs.vim
@@ -1,8 +1,8 @@
 " Insert or delete brackets, parens, quotes in pairs.
 " Maintainer:	JiangMiao <jiangfriend@gmail.com>
 " Contributor: camthompson
-" Last Change:  2013-07-13
-" Version: 1.3.2
+" Last Change:  2019-02-02
+" Version: 2.0.0
 " Homepage: http://www.vim.org/scripts/script.php?script_id=3599
 " Repository: https://github.com/jiangmiao/auto-pairs
 " License: MIT
@@ -13,12 +13,30 @@ end
 let g:AutoPairsLoaded = 1
 
 if !exists('g:AutoPairs')
-  let g:AutoPairs = {'(':')', '[':']', '{':'}',"'":"'",'"':'"', '`':'`'}
+  let g:AutoPairs = {'(':')', '[':']', '{':'}',"'":"'",'"':'"', '```':'```', '"""':'"""', "'''":"'''", "`":"`"}
 end
 
-if !exists('g:AutoPairsParens')
-  let g:AutoPairsParens = {'(':')', '[':']', '{':'}'}
-end
+" default pairs base on filetype
+func! AutoPairsDefaultPairs()
+  if exists('b:autopairs_defaultpairs')
+    return b:autopairs_defaultpairs
+  end
+  let r = copy(g:AutoPairs)
+  let allPairs = {
+        \ 'vim': {'\v^\s*\zs"': ''},
+        \ 'rust': {'\w\zs<': '>', '&\zs''': ''},
+        \ 'php': {'<?': '?>//k]', '<?php': '?>//k]'}
+        \ }
+  for [filetype, pairs] in items(allPairs)
+    if &filetype == filetype
+      for [open, close] in items(pairs)
+        let r[open] = close
+      endfor
+    end
+  endfor
+  let b:autopairs_defaultpairs = r
+  return r
+endf
 
 if !exists('g:AutoPairsMapBS')
   let g:AutoPairsMapBS = 1
@@ -33,6 +51,10 @@ if !exists('g:AutoPairsMapCR')
   let g:AutoPairsMapCR = 1
 end
 
+if !exists('g:AutoPairsWildClosedPair')
+  let g:AutoPairsWildClosedPair = ''
+end
+
 if !exists('g:AutoPairsMapSpace')
   let g:AutoPairsMapSpace = 1
 end
@@ -49,6 +71,10 @@ if !exists('g:AutoPairsShortcutFastWrap')
   let g:AutoPairsShortcutFastWrap = '<M-e>'
 end
 
+if !exists('g:AutoPairsMoveCharacter')
+  let g:AutoPairsMoveCharacter = "()[]{}\"'"
+end
+
 if !exists('g:AutoPairsShortcutJump')
   let g:AutoPairsShortcutJump = '<M-n>'
 endif
@@ -81,7 +107,7 @@ endif
 " 7.4.849 support <C-G>U to avoid breaking '.'
 " Issue talk: https://github.com/jiangmiao/auto-pairs/issues/3
 " Vim note: https://github.com/vim/vim/releases/tag/v7.4.849
-if v:version >= 704 && has("patch849")
+if v:version > 704 || v:version == 704 && has("patch849")
   let s:Go = "\<C-G>U"
 else
   let s:Go = ""
@@ -91,267 +117,335 @@ let s:Left = s:Go."\<LEFT>"
 let s:Right = s:Go."\<RIGHT>"
 
 
-" Will auto generated {']' => '[', ..., '}' => '{'}in initialize.
-let g:AutoPairsClosedPairs = {}
 
 
-function! AutoPairsInsert(key)
-  if !b:autopairs_enabled
-    return a:key
-  end
+" unicode len
+func! s:ulen(s)
+  return len(split(a:s, '\zs'))
+endf
 
+func! s:left(s)
+  return repeat(s:Left, s:ulen(a:s))
+endf
+
+func! s:right(s)
+  return repeat(s:Right, s:ulen(a:s))
+endf
+
+func! s:delete(s)
+  return repeat("\<DEL>", s:ulen(a:s))
+endf
+
+func! s:backspace(s)
+  return repeat("\<BS>", s:ulen(a:s))
+endf
+
+func! s:getline()
   let line = getline('.')
   let pos = col('.') - 1
   let before = strpart(line, 0, pos)
   let after = strpart(line, pos)
-  let next_chars = split(after, '\zs')
-  let current_char = get(next_chars, 0, '')
-  let next_char = get(next_chars, 1, '')
-  let prev_chars = split(before, '\zs')
-  let prev_char = get(prev_chars, -1, '')
-
-  let eol = 0
-  if col('$') -  col('.') <= 1
-    let eol = 1
-  end
-
-  " Ignore auto close if prev character is in g:AutoPairsIgnoreCharacters
-  if index(g:AutoPairsIgnoreCharacters, prev_char) != -1
-    return a:key
-  end
-
-  " The key is difference open-pair, then it means only for ) ] } by default
-  if !has_key(b:AutoPairs, a:key)
-    let b:autopairs_saved_pair = [a:key, getpos('.')]
-
-    " Skip the character if current character is the same as input
-    if current_char == a:key
-      return s:Right
-    end
-
-    if !g:AutoPairsFlyMode
-      " Skip the character if next character is space
-      if current_char == ' ' && next_char == a:key
-        return s:Right.s:Right
-      end
-
-      " Skip the character if closed pair is next character
-      if current_char == ''
-        if g:AutoPairsMultilineClose
-          let next_lineno = line('.')+1
-          let next_line = getline(nextnonblank(next_lineno))
-          let next_char = matchstr(next_line, '\s*\zs.')
-        else
-          let next_char = matchstr(line, '\s*\zs.')
-        end
-        if next_char == a:key
-          return "\<ESC>e^a"
-        endif
-      endif
-    endif
-
-    " Fly Mode, and the key is closed-pairs, search closed-pair and jump
-    if g:AutoPairsFlyMode && has_key(b:AutoPairsClosedPairs, a:key)
-      let n = stridx(after, a:key)
-      if n != -1
-        return repeat(s:Right, n+1)
-      end
-      if search(a:key, 'W')
-        " force break the '.' when jump to different line
-        return "\<Right>"
-      endif
-    endif
-
-    " Insert directly if the key is not an open key
-    return a:key
-  end
-
-  let open = a:key
-  let close = b:AutoPairs[open]
-
-  if current_char == close && open == close
-    return s:Right
-  end
-
-  " Ignore auto close ' if follows a word
-  " MUST after closed check. 'hello|'
-  if a:key == "'" && prev_char =~ '\v\w'
-    return a:key
-  end
-
-  " support for ''' ``` and """
-  if open == close
-    " The key must be ' " `
-    let pprev_char = line[col('.')-3]
-    if pprev_char == open && prev_char == open
-      " Double pair found
-      return repeat(a:key, 4) . repeat(s:Left, 3)
-    end
-  end
-
-  let quotes_num = 0
-  " Ignore comment line for vim file
-  if &filetype == 'vim' && a:key == '"'
-    if before =~ '^\s*$'
-      return a:key
-    end
-    if before =~ '^\s*"'
-      let quotes_num = -1
-    end
-  end
-
-  " Keep quote number is odd.
-  " Because quotes should be matched in the same line in most of situation
-  if g:AutoPairsSmartQuotes && open == close
-    " Remove \\ \" \'
-    let cleaned_line = substitute(line, '\v(\\.)', '', 'g')
-    let n = quotes_num
-    let pos = 0
-    while 1
-      let pos = stridx(cleaned_line, open, pos)
-      if pos == -1
+  let afterline = after
+  if g:AutoPairsMultilineClose
+    let n = line('$')
+    let i = line('.')+1
+    while i <= n
+      let line = getline(i)
+      let after = after.' '.line
+      if !(line =~ '\v^\s*$')
         break
       end
-      let n = n + 1
-      let pos = pos + 1
+      let i = i+1
     endwhile
-    if n % 2 == 1
-      return a:key
+  end
+  return [before, after, afterline]
+endf
+
+" split text to two part
+" returns [orig, text_before_open, open]
+func! s:matchend(text, open)
+    let m = matchstr(a:text, '\V'.a:open.'\v$')
+    if m == ""
+      return []
+    end
+    return [a:text, strpart(a:text, 0, len(a:text)-len(m)), m]
+endf
+
+" returns [orig, close, text_after_close]
+func! s:matchbegin(text, close)
+    let m = matchstr(a:text, '^\V'.a:close)
+    if m == ""
+      return []
+    end
+    return [a:text, m, strpart(a:text, len(m), len(a:text)-len(m))]
+endf
+
+" add or delete pairs base on g:AutoPairs
+" AutoPairsDefine(addPairs:dict[, removeOpenPairList:list])
+"
+" eg:
+"   au FileType html let b:AutoPairs = AutoPairsDefine({'<!--' : '-->'}, ['{'])
+"   add <!-- --> pair and remove '{' for html file
+func! AutoPairsDefine(pairs, ...)
+  let r = AutoPairsDefaultPairs()
+  if a:0 > 0
+    for open in a:1
+      unlet r[open]
+    endfor
+  end
+  for [open, close] in items(a:pairs)
+    let r[open] = close
+  endfor
+  return r
+endf
+
+func! AutoPairsInsert(key)
+  if !b:autopairs_enabled
+    return a:key
+  end
+
+  let b:autopairs_saved_pair = [a:key, getpos('.')]
+
+  let [before, after, afterline] = s:getline()
+
+  " Ignore auto close if prev character is \
+  if before[-1:-1] == '\'
+    return a:key
+  end
+
+  " check open pairs
+  for [open, close, opt] in b:AutoPairsList
+    let ms = s:matchend(before.a:key, open)
+    let m = matchstr(afterline, '^\v\s*\zs\V'.close)
+    if len(ms) > 0
+      " process the open pair
+      
+      " remove inserted pair
+      " eg: if the pairs include < > and  <!-- --> 
+      " when <!-- is detected the inserted pair < > should be clean up 
+      let target = ms[1]
+      let openPair = ms[2]
+      if len(openPair) == 1 && m == openPair
+        break
+      end
+      let bs = ''
+      let del = ''
+      while len(before) > len(target)
+        let found = 0
+        " delete pair
+        for [o, c, opt] in b:AutoPairsList
+          let os = s:matchend(before, o)
+          if len(os) && len(os[1]) < len(target)
+            " any text before openPair should not be deleted
+            continue
+          end
+          let cs = s:matchbegin(afterline, c)
+          if len(os) && len(cs)
+            let found = 1
+            let before = os[1]
+            let afterline = cs[2]
+            let bs = bs.s:backspace(os[2])
+            let del = del.s:delete(cs[1])
+            break
+          end
+        endfor
+        if !found
+          " delete charactor
+          let ms = s:matchend(before, '\v.')
+          if len(ms)
+            let before = ms[1]
+            let bs = bs.s:backspace(ms[2])
+          end
+        end
+      endwhile
+      return bs.del.openPair.close.s:left(close)
+    end
+  endfor
+
+  " check close pairs
+  for [open, close, opt] in b:AutoPairsList
+    if close == ''
+      continue
+    end
+    if a:key == g:AutoPairsWildClosedPair || opt['mapclose'] && opt['key'] == a:key
+      " the close pair is in the same line
+      let m = matchstr(afterline, '^\v\s*\V'.close)
+      if m != ''
+        if before =~ '\V'.open.'\v\s*$' && m[0] =~ '\v\s'
+          " remove the space we inserted if the text in pairs is blank
+          return "\<DEL>".s:right(m[1:])
+        else
+          return s:right(m)
+        end
+      end
+      let m = matchstr(after, '^\v\s*\zs\V'.close)
+      if m != ''
+        if a:key == g:AutoPairsWildClosedPair || opt['multiline']
+          if b:autopairs_return_pos == line('.') && getline('.') =~ '\v^\s*$'
+            normal! ddk$
+          end
+          call search(m, 'We')
+          return "\<Right>"
+        else
+          break
+        end
+      end
+    end
+  endfor
+
+
+  " Fly Mode, and the key is closed-pairs, search closed-pair and jump
+  if g:AutoPairsFlyMode &&  a:key =~ '\v[\}\]\)]'
+    if search(a:key, 'We')
+      return "\<Right>"
     endif
   endif
 
-  return open.close.s:Left
-endfunction
+  return a:key
+endf
 
-function! AutoPairsDelete()
+func! AutoPairsDelete()
   if !b:autopairs_enabled
     return "\<BS>"
   end
 
-  let line = getline('.')
-  let pos = col('.') - 1
-  let current_char = get(split(strpart(line, pos), '\zs'), 0, '')
-  let prev_chars = split(strpart(line, 0, pos), '\zs')
-  let prev_char = get(prev_chars, -1, '')
-  let pprev_char = get(prev_chars, -2, '')
-
-  if index(g:AutoPairsIgnoreCharacters, pprev_char) != -1
-    return "\<BS>"
-  end
-
-  " Delete last two spaces in parens, work with MapSpace
-  if has_key(b:AutoPairs, pprev_char) && prev_char == ' ' && current_char == ' '
-    return "\<BS>\<DEL>"
-  endif
-
-  " Delete Repeated Pair eg: '''|''' [[|]] {{|}}
-  if has_key(b:AutoPairs, prev_char)
-    let times = 0
-    let p = -1
-    while get(prev_chars, p, '') == prev_char
-      let p = p - 1
-      let times = times + 1
-    endwhile
-
-    let close = b:AutoPairs[prev_char]
-    let left = repeat(prev_char, times)
-    let right = repeat(close, times)
-
-    let before = strpart(line, pos-times, times)
-    let after  = strpart(line, pos, times)
-    if left == before && right == after
-      return repeat("\<BS>\<DEL>", times)
-    end
-  end
-
-
-  if has_key(b:AutoPairs, prev_char)
-    let close = b:AutoPairs[prev_char]
-    if match(line,'^\s*'.close, col('.')-1) != -1
-      " Delete (|___)
-      let space = matchstr(line, '^\s*', col('.')-1)
-      return "\<BS>". repeat("\<DEL>", len(space)+1)
-    elseif match(line, '^\s*$', col('.')-1) != -1
-      " Delete (|__\n___)
-      let nline = getline(line('.')+1)
-      if nline =~ '^\s*'.close
-        if &filetype == 'vim' && prev_char == '"'
-          " Keep next line's comment
+  let [before, after, ig] = s:getline()
+  for [open, close, opt] in b:AutoPairsList
+    let b = matchstr(before, '\V'.open.'\v\s?$')
+    let a = matchstr(after, '^\v\s*\V'.close)
+    if b != '' && a != ''
+      if b[-1:-1] == ' '
+        if a[0] == ' '
+          return "\<BS>\<DELETE>"
+        else
           return "\<BS>"
         end
-
-        let space = matchstr(nline, '^\s*')
-        return "\<BS>\<DEL>". repeat("\<DEL>", len(space)+1)
       end
+      return s:backspace(b).s:delete(a)
     end
-  end
+  endfor
 
   return "\<BS>"
-endfunction
-
-function! AutoPairsJump()
-  call search('["\]'')}]','W')
-endfunction
-" string_chunk cannot use standalone
-let s:string_chunk = '\v%(\\\_.|[^\1]|[\r\n]){-}'
-let s:ss_pattern = '\v''' . s:string_chunk . ''''
-let s:ds_pattern = '\v"'  . s:string_chunk . '"'
-
-func! s:RegexpQuote(str)
-  return substitute(a:str, '\v[\[\{\(\<\>\)\}\]]', '\\&', 'g')
-endf
-
-func! s:RegexpQuoteInSquare(str)
-  return substitute(a:str, '\v[\[\]]', '\\&', 'g')
-endf
-
-" Search next open or close pair
-func! s:FormatChunk(open, close)
-  let open = s:RegexpQuote(a:open)
-  let close = s:RegexpQuote(a:close)
-  let open2 = s:RegexpQuoteInSquare(a:open)
-  let close2 = s:RegexpQuoteInSquare(a:close)
-  if open == close
-    return '\v'.open.s:string_chunk.close
-  else
-    return '\v%(' . s:ss_pattern . '|' . s:ds_pattern . '|' . '[^'.open2.close2.']|[\r\n]' . '){-}(['.open2.close2.'])'
-  end
+  " delete the pair foo[]| <BS> to foo
+  for [open, close, opt] in b:AutoPairsList
+    let m = s:matchend(before, '\V'.open.'\v\s*'.'\V'.close.'\v$')
+    if len(m) > 0
+      return s:backspace(m[2])
+    end
+  endfor
+  return "\<BS>"
 endf
 
 " Fast wrap the word in brackets
-function! AutoPairsFastWrap()
-  let line = getline('.')
-  let current_char = line[col('.')-1]
-  let next_char = line[col('.')]
-  let open_pair_pattern = '\v[({\[''"]'
-  let at_end = col('.') >= col('$') - 1
-  normal x
-  " Skip blank
-  if next_char =~ '\v\s' || at_end
-    call search('\v\S', 'W')
-    let line = getline('.')
-    let next_char = line[col('.')-1]
-  end
-
-  if has_key(b:AutoPairs, next_char)
-    let followed_open_pair = next_char
-    let inputed_close_pair = current_char
-    let followed_close_pair = b:AutoPairs[next_char]
-    if followed_close_pair != followed_open_pair
-      " TODO replace system searchpair to skip string and nested pair.
-      " eg: (|){"hello}world"} will transform to ({"hello})world"}
-      call searchpair('\V'.followed_open_pair, '', '\V'.followed_close_pair, 'W')
-    else
-      call search(s:FormatChunk(followed_open_pair, followed_close_pair), 'We')
-    end
-    return s:Right.inputed_close_pair.s:Left
+func! AutoPairsFastWrap()
+  let c = @"
+  normal! x
+  let [before, after, ig] = s:getline()
+  if after[0] =~ '\v[\{\[\(\<]'
+    normal! %
+    normal! p
   else
-    normal he
-    return s:Right.current_char.s:Left
+    for [open, close, opt] in b:AutoPairsList
+      if close == ''
+        continue
+      end
+      if after =~ '^\s*\V'.open
+        call search(close, 'We')
+        normal! p
+        let @" = c
+        return ""
+      end
+    endfor
+    if after[1:1] =~ '\v\w'
+      normal! e
+      normal! p
+    else
+      normal! p
+    end
   end
-endfunction
+  let @" = c
+  return ""
+endf
 
-function! AutoPairsMap(key)
+func! AutoPairsJump()
+  call search('["\]'')}]','W')
+endf
+
+func! AutoPairsMoveCharacter(key)
+  let c = getline(".")[col(".")-1]
+  let escaped_key = substitute(a:key, "'", "''", 'g')
+  return "\<DEL>\<ESC>:call search("."'".escaped_key."'".")\<CR>a".c."\<LEFT>"
+endf
+
+func! AutoPairsBackInsert()
+  let pair = b:autopairs_saved_pair[0]
+  let pos  = b:autopairs_saved_pair[1]
+  call setpos('.', pos)
+  return pair
+endf
+
+func! AutoPairsReturn()
+  if b:autopairs_enabled == 0
+    return ''
+  end
+  let b:autopairs_return_pos = 0
+  let before = getline(line('.')-1)
+  let [ig, ig, afterline] = s:getline()
+  let cmd = ''
+  for [open, close, opt] in b:AutoPairsList
+    if close == ''
+      continue
+    end
+
+    if before =~ '\V'.open.'\v\s*$' && afterline =~ '^\s*\V'.close
+      let b:autopairs_return_pos = line('.')
+      if g:AutoPairsCenterLine && winline() * 3 >= winheight(0) * 2
+        " Recenter before adding new line to avoid replacing line content
+        let cmd = "zz"
+      end
+
+      " If equalprg has been set, then avoid call =
+      " https://github.com/jiangmiao/auto-pairs/issues/24
+      if &equalprg != ''
+        return "\<ESC>".cmd."O"
+      endif
+
+      " conflict with javascript and coffee
+      " javascript   need   indent new line
+      " coffeescript forbid indent new line
+      if &filetype == 'coffeescript' || &filetype == 'coffee'
+        return "\<ESC>".cmd."k==o"
+      else
+        return "\<ESC>".cmd."=ko"
+      endif
+    end
+  endfor
+  return ''
+endf
+
+func! AutoPairsSpace()
+  if !b:autopairs_enabled
+    return "\<SPACE>"
+  end
+
+  let [before, after, ig] = s:getline()
+
+  for [open, close, opt] in b:AutoPairsList
+    if close == ''
+      continue
+    end
+    if before =~ '\V'.open.'\v$' && after =~ '^\V'.close
+      if close =~ '\v^[''"`]$'
+        return "\<SPACE>"
+      else
+        return "\<SPACE>\<SPACE>".s:Left
+      end
+    end
+  endfor
+  return "\<SPACE>"
+endf
+
+func! AutoPairsMap(key)
   " | is special key which separate map command from text
   let key = a:key
   if key == '|'
@@ -360,9 +454,9 @@ function! AutoPairsMap(key)
   let escaped_key = substitute(key, "'", "''", 'g')
   " use expr will cause search() doesn't work
   execute 'inoremap <buffer> <silent> '.key." <C-R>=AutoPairsInsert('".escaped_key."')<CR>"
-endfunction
+endf
 
-function! AutoPairsToggle()
+func! AutoPairsToggle()
   if b:autopairs_enabled
     let b:autopairs_enabled = 0
     echo 'AutoPairs Disabled.'
@@ -371,82 +465,81 @@ function! AutoPairsToggle()
     echo 'AutoPairs Enabled.'
   end
   return ''
-endfunction
+endf
 
-function! AutoPairsReturn()
-  if b:autopairs_enabled == 0
-    return ''
-  end
-  let line = getline('.')
-  let pline = getline(line('.')-1)
-  let prev_char = pline[strlen(pline)-1]
-  let cmd = ''
-  let cur_char = line[col('.')-1]
-  if has_key(b:AutoPairs, prev_char) && b:AutoPairs[prev_char] == cur_char
-    if g:AutoPairsCenterLine && winline() * 3 >= winheight(0) * 2
-      " Use \<BS> instead of \<ESC>cl will cause the placeholder deleted
-      " incorrect. because <C-O>zz won't leave Normal mode.
-      " Use \<DEL> is a bit wierd. the character before cursor need to be deleted.
-      " Adding a space, recentering, and deleting it interferes with default
-      " whitespace-removing behavior when exiting insert mode.
-      let cmd = "\<ESC>zzcc"
-    end
+func! s:sortByLength(i1, i2)
+  return len(a:i2[0])-len(a:i1[0])
+endf
 
-    " If equalprg has been set, then avoid call =
-    " https://github.com/jiangmiao/auto-pairs/issues/24
-    if &equalprg != ''
-      return "\<ESC>O".cmd
-    endif
-
-    " conflict with javascript and coffee
-    " javascript   need   indent new line
-    " coffeescript forbid indent new line
-    if &filetype == 'coffeescript' || &filetype == 'coffee'
-      return "\<ESC>k==o".cmd
-    else
-      return "\<ESC>=ko".cmd
-    endif
-  end
-  return ''
-endfunction
-
-function! AutoPairsSpace()
-  let line = getline('.')
-  let prev_char = line[col('.')-2]
-  let cmd = ''
-  let cur_char =line[col('.')-1]
-  if has_key(g:AutoPairsParens, prev_char) && g:AutoPairsParens[prev_char] == cur_char
-    let cmd = "\<SPACE>".s:Left
-  endif
-  return "\<SPACE>".cmd
-endfunction
-
-function! AutoPairsBackInsert()
-  if exists('b:autopairs_saved_pair')
-    let pair = b:autopairs_saved_pair[0]
-    let pos  = b:autopairs_saved_pair[1]
-    call setpos('.', pos)
-    return pair
-  endif
-  return ''
-endfunction
-
-function! AutoPairsInit()
+func! AutoPairsInit()
   let b:autopairs_loaded  = 1
-  let b:autopairs_enabled = 1
-  let b:AutoPairsClosedPairs = {}
+  if !exists('b:autopairs_enabled')
+    let b:autopairs_enabled = 1
+  end
 
   if !exists('b:AutoPairs')
-    let b:AutoPairs = g:AutoPairs
+    let b:AutoPairs = AutoPairsDefaultPairs()
   end
 
+  if !exists('b:AutoPairsMoveCharacter')
+    let b:AutoPairsMoveCharacter = g:AutoPairsMoveCharacter
+  end
+
+  let b:autopairs_return_pos = 0
+  let b:autopairs_saved_pair = [0, 0]
+  let b:AutoPairsList = []
+
   " buffer level map pairs keys
+  " n - do not map the first charactor of closed pair to close key
+  " m - close key jumps through multi line
+  " s - close key jumps only in the same line
   for [open, close] in items(b:AutoPairs)
-    call AutoPairsMap(open)
-    if open != close
-      call AutoPairsMap(close)
+    let o = open[-1:-1]
+    let c = close[0]
+    let opt = {'mapclose': 1, 'multiline':1}
+    let opt['key'] = c
+    if o == c
+      let opt['multiline'] = 0
     end
-    let b:AutoPairsClosedPairs[close] = open
+    let m = matchlist(close, '\v(.*)//(.*)$')
+    if len(m) > 0 
+      if m[2] =~ 'n'
+        let opt['mapclose'] = 0
+      end
+      if m[2] =~ 'm'
+        let opt['multiline'] = 1
+      end
+      if m[2] =~ 's'
+        let opt['multiline'] = 0
+      end
+      let ks = matchlist(m[2], '\vk(.)')
+      if len(ks) > 0
+        let opt['key'] = ks[1]
+        let c = opt['key']
+      end
+      let close = m[1]
+    end
+    call AutoPairsMap(o)
+    if o != c && c != '' && opt['mapclose']
+      call AutoPairsMap(c)
+    end
+    let b:AutoPairsList += [[open, close, opt]]
+  endfor
+
+  " sort pairs by length, longer pair should have higher priority
+  let b:AutoPairsList = sort(b:AutoPairsList, "s:sortByLength")
+
+  for item in b:AutoPairsList
+    let [open, close, opt] = item
+    if open == "'" && open == close
+      let item[0] = '\v(^|\W)\zs'''
+    end
+  endfor
+
+
+  for key in split(b:AutoPairsMoveCharacter, '\s*')
+    let escaped_key = substitute(key, "'", "''", 'g')
+    execute 'inoremap <silent> <buffer> <M-'.key."> <C-R>=AutoPairsMoveCharacter('".escaped_key."')<CR>"
   endfor
 
   " Still use <buffer> level mapping for <BS> <SPACE>
@@ -487,15 +580,30 @@ function! AutoPairsInit()
     execute 'noremap <buffer> <silent> ' . g:AutoPairsShortcutJump. ' :call AutoPairsJump()<CR>'
   end
 
-endfunction
+  if &keymap != ''
+    let l:imsearch = &imsearch
+    let l:iminsert = &iminsert
+    let l:imdisable = &imdisable
+    execute 'setlocal keymap=' . &keymap
+    execute 'setlocal imsearch=' . l:imsearch
+    execute 'setlocal iminsert=' . l:iminsert
+    if l:imdisable
+      execute 'setlocal imdisable'
+    else
+      execute 'setlocal noimdisable'
+    end
+  end
 
-function! s:ExpandMap(map)
+endf
+
+func! s:ExpandMap(map)
   let map = a:map
   let map = substitute(map, '\(<Plug>\w\+\)', '\=maparg(submatch(1), "i")', 'g')
+  let map = substitute(map, '\(<Plug>([^)]*)\)', '\=maparg(submatch(1), "i")', 'g')
   return map
-endfunction
+endf
 
-function! AutoPairsTryInit()
+func! AutoPairsTryInit()
   if exists('b:autopairs_loaded')
     return
   end
@@ -558,7 +666,7 @@ function! AutoPairsTryInit()
     end
   endif
   call AutoPairsInit()
-endfunction
+endf
 
 " Always silent the command
 inoremap <silent> <SID>AutoPairsReturn <C-R>=AutoPairsReturn()<CR>