diff --git a/app/assets/javascripts/task_list.coffee b/app/assets/javascripts/task_list.coffee
index e94ebcb..d7b76c0 100644
--- a/app/assets/javascripts/task_list.coffee
+++ b/app/assets/javascripts/task_list.coffee
@@ -115,7 +115,11 @@ completePattern = ///
 # Useful when you need iterate over all items.
 itemPattern = ///
   ^
-  (?:\s*[-+*]|(?:\d+\.))? # optional list prefix
+  (?:                     # optional prefix, consisting of
+    \s*                   # optional leading whitespace
+    (?:>\s*)*             # zero or more blockquotes
+    (?:[-+*]|(?:\d+\.))   # list item indicator
+  )?
   \s*                     # optional whitespace prefix
   (                       # checkbox
     #{escapePattern(complete)}|
diff --git a/test/unit/test_updates.coffee b/test/unit/test_updates.coffee
index d478948..4c653a0 100644
--- a/test/unit/test_updates.coffee
+++ b/test/unit/test_updates.coffee
@@ -28,11 +28,69 @@ module "TaskList updates",
       class: 'task-list-item-checkbox'
       disabled: true
       checked: false
+      
+    @blockquote = $ '<blockquote>'
+
+    @quotedList = $ '<ul>', class: 'task-list'
+
+    @quotedCompleteItem = $ '<li>', class: 'task-list-item'
+    @quotedCompleteCheckbox = $ '<input>',
+      type: 'checkbox'
+      class: 'task-list-item-checkbox'
+      disabled: true
+      checked: true
+
+    @quotedIncompleteItem = $ '<li>', class: 'task-list-item'
+    @quotedIncompleteCheckbox = $ '<input>',
+      type: 'checkbox'
+      class: 'task-list-item-checkbox'
+      disabled: true
+      checked: false
+      
+    @innerBlockquote = $ '<blockquote>'
+
+    @innerList = $ '<ul>', class: 'task-list'
+
+    @innerCompleteItem = $ '<li>', class: 'task-list-item'
+    @innerCompleteCheckbox = $ '<input>',
+      type: 'checkbox'
+      class: 'task-list-item-checkbox'
+      disabled: true
+      checked: true
+
+    @innerIncompleteItem = $ '<li>', class: 'task-list-item'
+    @innerIncompleteCheckbox = $ '<input>',
+      type: 'checkbox'
+      class: 'task-list-item-checkbox'
+      disabled: true
+      checked: false
+
+    @orderedList = $ '<ol>', class: 'task-list'
+
+    @orderedCompleteItem = $ '<li>', class: 'task-list-item'
+    @orderedCompleteCheckbox = $ '<input>',
+      type: 'checkbox'
+      class: 'task-list-item-checkbox'
+      disabled: true
+      checked: true
+
+    @orderedIncompleteItem = $ '<li>', class: 'task-list-item'
+    @orderedIncompleteCheckbox = $ '<input>',
+      type: 'checkbox'
+      class: 'task-list-item-checkbox'
+      disabled: true
+      checked: false
 
     @field = $ '<textarea>', class: 'js-task-list-field', text: """
       - [x] complete
       - [ ] incomplete
       - [#{@nbsp}] incompleteNBSP
+      > - [x] quoted complete
+      > - [ ] quoted incomplete
+      >> - [x] inner complete
+      > > - [ ] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [ ] ordered incomplete
     """
 
     @changes =
@@ -40,16 +98,100 @@ module "TaskList updates",
       - [ ] complete
       - [ ] incomplete
       - [#{@nbsp}] incompleteNBSP
+      > - [x] quoted complete
+      > - [ ] quoted incomplete
+      >> - [x] inner complete
+      > > - [ ] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [ ] ordered incomplete
+      """
+      toQuotedComplete: """
+      - [x] complete
+      - [ ] incomplete
+      - [#{@nbsp}] incompleteNBSP
+      > - [ ] quoted complete
+      > - [ ] quoted incomplete
+      >> - [x] inner complete
+      > > - [ ] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [ ] ordered incomplete
+      """
+      toInnerComplete: """
+      - [x] complete
+      - [ ] incomplete
+      - [#{@nbsp}] incompleteNBSP
+      > - [x] quoted complete
+      > - [ ] quoted incomplete
+      >> - [ ] inner complete
+      > > - [ ] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [ ] ordered incomplete
+      """
+      toOrderedComplete: """
+      - [x] complete
+      - [ ] incomplete
+      - [#{@nbsp}] incompleteNBSP
+      > - [x] quoted complete
+      > - [ ] quoted incomplete
+      >> - [x] inner complete
+      > > - [ ] inner incomplete
+      > 0. [ ] ordered complete
+      > 0. [ ] ordered incomplete
       """
       toIncomplete: """
       - [x] complete
       - [x] incomplete
       - [#{@nbsp}] incompleteNBSP
+      > - [x] quoted complete
+      > - [ ] quoted incomplete
+      >> - [x] inner complete
+      > > - [ ] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [ ] ordered incomplete
+      """
+      toQuotedIncomplete: """
+      - [x] complete
+      - [ ] incomplete
+      - [#{@nbsp}] incompleteNBSP
+      > - [x] quoted complete
+      > - [x] quoted incomplete
+      >> - [x] inner complete
+      > > - [ ] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [ ] ordered incomplete
+      """
+      toInnerIncomplete: """
+      - [x] complete
+      - [ ] incomplete
+      - [#{@nbsp}] incompleteNBSP
+      > - [x] quoted complete
+      > - [ ] quoted incomplete
+      >> - [x] inner complete
+      > > - [x] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [ ] ordered incomplete
+      """
+      toOrderedIncomplete: """
+      - [x] complete
+      - [ ] incomplete
+      - [#{@nbsp}] incompleteNBSP
+      > - [x] quoted complete
+      > - [ ] quoted incomplete
+      >> - [x] inner complete
+      > > - [ ] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [x] ordered incomplete
       """
       toIncompleteNBSP: """
       - [x] complete
       - [ ] incomplete
       - [x] incompleteNBSP
+      > - [x] quoted complete
+      > - [ ] quoted incomplete
+      >> - [x] inner complete
+      > > - [ ] inner incomplete
+      > 0. [x] ordered complete
+      > 0. [ ] ordered incomplete
       """
 
     @completeItem.append @completeCheckbox
@@ -67,6 +209,43 @@ module "TaskList updates",
     @container.append @list
     @container.append @field
 
+    @quotedCompleteItem.append @quotedCompleteCheckbox
+    @quotedList.append @quotedCompleteItem
+    @quotedCompleteItem.expectedIndex = 4
+
+    @quotedIncompleteItem.append @quotedIncompleteCheckbox
+    @quotedList.append @quotedIncompleteItem
+    @quotedIncompleteItem.expectedIndex = 5
+
+    @blockquote.append @quotedList
+
+    @innerCompleteItem.append @innerCompleteCheckbox
+    @innerList.append @innerCompleteItem
+    @innerCompleteItem.expectedIndex = 6
+
+    @innerIncompleteItem.append @innerIncompleteCheckbox
+    @innerList.append @innerIncompleteItem
+    @innerIncompleteItem.expectedIndex = 7
+
+    @innerBlockquote.append @innerList
+    @innerBlockquote.append @innerField
+
+    @blockquote.append @innerBlockquote
+
+    @container.append @blockquote 
+
+    @orderedCompleteItem.append @orderedCompleteCheckbox
+    @orderedList.append @orderedCompleteItem
+    @orderedCompleteItem.expectedIndex = 8
+
+    @orderedIncompleteItem.append @orderedIncompleteCheckbox
+    @orderedList.append @orderedIncompleteItem
+    @orderedIncompleteItem.expectedIndex = 9
+    
+    @container.append @orderedList
+    
+    @blockquote.append @field
+
     $('#qunit-fixture').append(@container)
     @container.taskList()
 
@@ -115,3 +294,88 @@ asyncTest "updates the source for items with non-breaking spaces", ->
   , 20
 
   @incompleteNBSPCheckbox.click()
+
+asyncTest "updates the source of a quoted item, marking the incomplete item as complete", ->
+  expect 3
+
+  @field.on 'tasklist:changed', (event, index, checked) =>
+    ok checked
+    equal index, @quotedIncompleteItem.expectedIndex
+    equal @field.val(), @changes.toQuotedIncomplete
+
+  setTimeout ->
+    start()
+  , 20
+
+  @quotedIncompleteCheckbox.click()
+
+asyncTest "updates the source of a quoted item, marking the complete item as incomplete", ->
+  expect 3
+
+  @field.on 'tasklist:changed', (event, index, checked) =>
+    ok !checked
+    equal index, @quotedCompleteItem.expectedIndex
+    equal @field.val(), @changes.toQuotedComplete
+
+  setTimeout ->
+    start()
+  , 20
+
+  @quotedCompleteCheckbox.click()
+
+asyncTest "updates the source of a quoted quoted item, marking the incomplete item as complete", ->
+  expect 3
+
+  @field.on 'tasklist:changed', (event, index, checked) =>
+    ok checked
+    equal index, @innerIncompleteItem.expectedIndex
+    equal @field.val(), @changes.toInnerIncomplete
+
+  setTimeout ->
+    start()
+  , 20
+
+  @innerIncompleteCheckbox.click()
+
+asyncTest "updates the source of a quoted quoted item, marking the complete item as incomplete", ->
+  expect 3
+
+  @field.on 'tasklist:changed', (event, index, checked) =>
+    ok !checked
+    equal index, @innerCompleteItem.expectedIndex
+    equal @field.val(), @changes.toInnerComplete
+
+  setTimeout ->
+    start()
+  , 20
+
+  @innerCompleteCheckbox.click()
+
+asyncTest "updates the source of an ordered list item, marking the incomplete item as complete", ->
+  expect 3
+
+  @field.on 'tasklist:changed', (event, index, checked) =>
+    ok checked
+    equal index, @orderedIncompleteItem.expectedIndex
+    equal @field.val(), @changes.toOrderedIncomplete
+
+  setTimeout ->
+    start()
+  , 20
+
+  @orderedIncompleteCheckbox.click()
+
+asyncTest "updates the source of an ordered list item, marking the complete item as incomplete", ->
+  expect 3
+
+  @field.on 'tasklist:changed', (event, index, checked) =>
+    ok !checked
+    equal index, @orderedCompleteItem.expectedIndex
+    equal @field.val(), @changes.toOrderedComplete
+
+  setTimeout ->
+    start()
+  , 20
+
+  @orderedCompleteCheckbox.click()
+