Code Style. Haml
Use this section to configure formatting options for Haml files. When you change these settings, results of a change are displayed in the Preview pane.
Tabs and Indents
Use tab character
An indentation consists of two parts. One part results from nesting code blocks, and the other part is determined by alignment.
In this field, specify the number of spaces that fits in a tab.
In this field, specify the number of spaces (or tabs if the Use tab character checkbox is selected) to be inserted for each indent level.
In this field, specify the number of spaces (or tabs if the Use tab character checkbox is selected) to be inserted between the elements of an array, in expressions, method declarations, and method calls.
Keep indents on empty lines
If this checkbox is selected, PhpStorm retains indents on empty lines as if they contained some code. If the checkbox is cleared, PhpStorm deletes the tab characters and spaces on empty lines.
The link appears in the upper-right corner of the page, when applicable. Click this link and choose the language to be used as the base for the current language code style.
To return to the initial set of code style settings and discard the changes, click Reset.