update messletters api

autoload/SpaceVim/api/messletters.vim

@@ -9,11 +9,98 @@ function! s:bubble_num(num, type) abort
     call add(list,['➊', '➋', '➌', '➍', '➎', '➏', '➐', '➑', '➒', '➓'])
     call add(list,['➀', '➁', '➂', '➃', '➄', '➅', '➆', '➇', '➈', '➉'])
     call add(list,['⓵', '⓶', '⓷', '⓸', '⓹', '⓺', '⓻', '⓼', '⓽', '⓾'])
-    return list[a:type][a:num-1]
+    let n = ''
+    try
+        let n = list[a:type][a:num-1] 
+    catch
+    endtry
+    return  n
 endfunction
 
 let s:chars['bubble_num'] = function('s:bubble_num')
 
+" type :
+" 0: 1 ➛ ➊ 
+" 1: 1 ➛ ➀
+" 2: 1 ➛ ⓵
+function! s:circled_num(num, type) abort
+    " http://www.unicode.org/charts/beta/nameslist/n_2460.html
+    if a:type == 0
+        if a:num == 0
+            return nr2char(9471)
+        elseif index(range(1,10), a:num) != -1
+            return nr2char(10102 + a:num - 1)
+        elseif index(range(11, 20), a:num)
+            return nr2char(9451 + a:num - 11)
+        else
+            return ''
+        endif
+    elseif a:type == 1
+        if index(range(20), a:num) != -1
+            if a:num == 0
+                return nr2char(9450)
+            else
+                return nr2char(9311 + a:num)
+            endif
+        else
+            return ''
+        endif
+    elseif a:type == 2
+        if index(range(1, 10), a:num) != -1
+            return nr2char(9461 + a:num - 1)
+        else
+            return ''
+        endif
+    endif
+endfunction
+
+let s:chars['circled_num'] = function('s:circled_num')
+
+function! s:parenthesized_num(num) abort
+    " http://www.unicode.org/charts/beta/nameslist/n_2460.html
+    if index(range(1, 20), a:num) != -1
+        return nr2char(9331 + a:num)
+    else
+        return ''
+    endif
+endfunction
+
+let s:chars['parenthesized_num'] = function('s:parenthesized_num')
+
+function! s:num_period(num) abort
+    " http://www.unicode.org/charts/beta/nameslist/n_2460.html
+    if index(range(1, 20), a:num) != -1
+        return nr2char(9351 + a:num)
+    else
+        return ''
+    endif
+endfunction
+
+let s:chars['num_period'] = function('s:num_period')
+
+function! s:parenthesized_letter(letter) abort
+    " http://www.unicode.org/charts/beta/nameslist/n_2460.html
+    if index(range(1, 26), char2nr(a:letter) - 96) != -1
+        return nr2char(9371 + char2nr(a:letter) - 96)
+    else
+        return ''
+    endif
+endfunction
+
+let s:chars['parenthesized_letter'] = function('s:parenthesized_letter')
+
+function! s:circled_letter(letter) abort
+    " http://www.unicode.org/charts/beta/nameslist/n_2460.html
+    if index(range(1, 26), char2nr(a:letter) - 64) != -1
+        return nr2char(9397 + char2nr(a:letter) - 64)
+    elseif index(range(1, 26), char2nr(a:letter) - 96) != -1
+        return nr2char(9423 + char2nr(a:letter) - 96)
+    else
+        return ''
+    endif
+endfunction
+
+let s:chars['circled_letter'] = function('s:circled_letter')
 
 function! SpaceVim#api#messletters#get() abort
     return deepcopy(s:chars)