haml attribute parsing

{class: name} { class : name } { 'class' : 'name' } { 'key' : 'value', 'key': 'value' } {'key': 'value'} {' key ': ' value ' , 'this': 'guy' } {' class ': ' in session ' , 'this': 'guy' } string {' class ': ' in session ' , 'this': 'guy' } string with {{ brackets }} {' class ': '{{ parse me }}' } {'key': 'value', checked: true} {'key': 'value', checked: {{ bool }} } {'asdf': 'fda', checked: {{ bool }}, strange: {{ bool }} } stuff {{ more }} #{interpolate} {'ng-class': '{active: active.semester == undefined}', 'ng-click': 'select()'} {'ng-show': 'class.location == "Online"'} | {{ class.onlineSchool.name }} {class: 'collapse-icon', 'ng-class': '{"open-content": expanded}'} icon {} {'{}'}