Improve HEREDOCS

[kaiquekandykoga]

Hi guys,

This is an attempt to fix the issue #265.

During auto indentation the methods check_newline_depth_difference and check_corresponding_token_depth are not considering on_heredoc_beg and on_heredoc_end.

The solution is checking if the line is inside heredocs, if so the extra spaces in the beginning of the line is returned.

Without brackets

After

3.0.2 :001"> <<a
3.0.2 :002">   0
3.0.2 :003 > a
 => "  0\n"
3.0.2 :004"> <<-a
3.0.2 :005">   0
3.0.2 :006 > a
 => "  0\n"
3.0.2 :007"> <<~a
3.0.2 :008">   0
3.0.2 :009 > a
 => "0\n"

Before

3.0.2 :001"> <<a
3.0.2 :002"> 0
3.0.2 :003 > a
 => "0\n"
3.0.2 :004"> <<-a
3.0.2 :005"> 0
3.0.2 :006 > a
 => "0\n"
3.0.2 :007"> <<~a
3.0.2 :008"> 0
3.0.2 :009 > a
 => "0\n"

Using brackets

After

3.0.2 :001"> [<<a]
3.0.2 :002">   0
3.0.2 :003 > a
 => ["  0\n"]
3.0.2 :004"> [<<-a]
3.0.2 :005">   0
3.0.2 :006 > a
 => ["  0\n"]
3.0.2 :007"> [<<~a]
3.0.2 :008">   0
3.0.2 :009 > a
 => ["0\n"]

Before

3.0.2 :001"> [<<a]
3.0.2 :002"> 0
3.0.2 :003 > a
 => ["0\n"]
3.0.2 :004"> [<<-a]
3.0.2 :005"> 0
3.0.2 :006 > a
 => ["0\n"]
3.0.2 :007"> [<<~a]
3.0.2 :008"> 0
3.0.2 :009 > a
 => ["0\n"]

Thank you very much.

[aycabta]

Great, thank you!