Shorthand notation for ignore_groups/ignore_unmatched

e.g. ig['String']iu0

README.md

@@ -242,18 +242,15 @@ Supported shorthand notations are listed below.
 
 | Expression | Option           |
 | ---------- | ---------------- |
-| `l[0-9]`   | left_margin      |
-| `r[0-9]`   | right_margin     |
+| `l[0-9]+`  | left_margin      |
+| `r[0-9]+`  | right_margin     |
 | `s[01]`    | stick_to_left    |
-| `u[01]`    | ignore_unmatched |
+| `iu[01]`   | ignore_unmatched |
+| `ig\[.*\]` | ignore_groups    |
 | `d[lrc]`   | delimiter_align  |
 | `m[lrc*]*` | mode_sequence    |
 | `i[ksdn]`  | indentation      |
 
-Notice that some option values cannot be expressed in shorthand notation.
-
-- `:EasyAlign*/[:;]\+/s1l0 {'ig': []}`
-
 ### Partial alignment in blockwise-visual mode
 
 In blockwise-visual mode (`CTRL-V`), EasyAlign command aligns only the selected

autoload/easy_align.vim

@@ -691,11 +691,11 @@ endfunction
 
 function! s:parse_shortcut_opts(expr)
   let opts = {}
-  let expr = tolower(substitute(a:expr, '\s', '', 'g'))
+  let expr = substitute(a:expr, '\s', '', 'g')
   let regex =
     \ '^\('
-    \   .'\(l[0-9]\+\)\|\(r[0-9]\+\)\|\(u[01]\)\|\(s[01]\)\|'
-    \   .'\(d[clr]\)\|\(m[lrc*]\+\)\|\(i[kdsn]\)'
+    \   .'\(l[0-9]\+\)\|\(r[0-9]\+\)\|\(iu[01]\)\|\(s[01]\)\|'
+    \   .'\(d[clr]\)\|\(m[lrc*]\+\)\|\(i[kdsn]\)\|\(ig\[.*\]\)'
     \ .'\)\+$'
 
   if empty(expr)
@@ -706,12 +706,24 @@ function! s:parse_shortcut_opts(expr)
     let match = matchlist(expr, regex)
     if empty(match) | break | endif
     for m in filter(match[ 2 : -1 ], '!empty(v:val)')
-      let k = m[0]
+      let k  = tolower(m[0])
+      let kk = tolower(m[0 : 1])
       let rest = m[1 : -1]
       if index(['l', 'r', 's'], k) >= 0
         let opts[k] = str2nr(rest)
-      elseif k == 'u'
-        let opts['iu'] = str2nr(rest)
+      elseif kk == 'iu'
+        let opts['iu'] = str2nr(m[2 : -1])
+      elseif kk == 'ig'
+        try
+          let arr = eval(m[2 : -1])
+          if type(arr) == 3
+            let opts['ig'] = arr
+          else
+            throw 'Not an array'
+          endif
+        catch
+          call s:exit("Invalid ignore_groups: ". a:expr)
+        endtry
       elseif k == 'i'
         let opts['idt'] = rest
       else

doc/easy_align.txt

@@ -167,18 +167,15 @@ Supported shorthand notations are listed below.
 
 | Expression | Option           |
 | ---------- | --------------   |
-| l[0-9]     | left_margin      |
-| r[0-9]     | right_margin     |
+| l[0-9]+    | left_margin      |
+| r[0-9]+    | right_margin     |
 | s[01]      | stick_to_left    |
-| u[01]      | ignore_unmatched |
+| iu[01]     | ignore_unmatched |
+| ig\[.*\]   | ignore_groups    |
 | d[lrc]     | delimiter_align  |
 | m[lrc*]+   | mode_sequence    |
 | i[ksdn]    | indentation      |
 
-Notice that some option values cannot be expressed in shorthand notation.
-
-    :EasyAlign*/[:;]\+/s1l0 {'ig': []}
-
 
 Partial alignment in blockwise-visual mode
 -------------------------------------------------------------------------