regex101: Code and /* Block Comment */ Separator

Regular Expression

(?<Loop>
(?<NewBlock>
  (?:(?:
    ^[\s]*\n
  |
    ^(?:(?!\/\*).)+\n
  |
    ^(?:(?!\/\*).)+
  ))+
)?
(?<OldBlock>
 (?:
  \/\*.+\*\/
 |
  (?:\/\*.*\n)
  (?:(?:
    ^[\s]*\n
  |
    ^(?:(?!\*\/).)+\n
  |
    ^(?:(?!\*\/).)+
  ))+
  \*\/
)
)?
)+

New

		.highlight
		{
			background: #ffffff
		}

		.highlight .c,
		.highlight .cm,
		.highlight .cp,
		.highlight .c1,
		.highlight .cs
		{
			color: #007400;
		}
		/* Comment, 
		   Comment.Multiline, 
		   Comment.Preproc, 
		   Comment.Single, 
		   Comment.Special
		*/

		.highlight .k,
		.highlight .kc,
		.highlight .kd,
		.highlight .kp,
		.highlight .kr,
		.highlight .nb
		{
			color: #AA0D91;
		}
		/* Keyword,
		   Keyword.Constant,
		   Keyword.Declaration,
		   Keyword.Pseudo,
		   Name.Builtin */

		.highlight .kt
		{
			color: #3F6E74
		}

		/* Keyword.Reserved */
		.highlight .err
		{
			color: #a61717;
		}

		/* Error */
		.highlight .o
		{
			font-weight: bold
		}

		/* Operator */
		.highlight .gd
		{
			color: #000000;
			background-color: #fdd
		}

		/* Generic.Deleted */
		.highlight .gd .x
		{
			color: #000000;
			background-color: #faa
		}

		/* Generic.Deleted.Specific */
		.highlight .ge
		{
			font-style: italic
		}

		/* Generic.Emph */
		.highlight .gr
		{
			color: #a00
		}

		/* Generic.Error */
		.highlight .gh
		{
			color: #999
		}

		/* Generic.Heading */
		.highlight .gi
		{
			color: #000000;
			background-color: #dfd
		}

		/* Generic.Inserted */
		.highlight .gi .x
		{
			color: #000000;
			background-color: #afa
		}

		/* Generic.Inserted.Specific */
		.highlight .go
		{
			color: #888
		}

		/* Generic.Output */
		.highlight .gp
		{
			color: #555
		}

		/* Generic.Prompt */
		.highlight .gs
		{
			font-weight: bold
		}

		/* Generic.Strong */
		.highlight .gu
		{
			color: #aaa
		}

		/* Generic.Subheading */
		.highlight .gt
		{
			color: #a00
		}

		/* Generic.Traceback */
		.highlight .m,
		.highlight .mf,
		.highlight .mh,
		.highlight .mi,
		.highlight .mo
		{
			color: #1C00CF;
		}

		/* Literal.Number,
		   Literal.Number.Float,
		   Literal.Number.Hex,
		   Literal.Number.Integer,
		   Literal.Number.Oct */
		.highlight .s
		{
			color: #C41A16;
		}

		/* Literal.String */
		.highlight .na
		{
			color: teal
		}

		/* Name.Attribute */
		.highlight .nc
		{
			color: #5C2699
		}

		/* Name.Class */
		.highlight .no
		{
			color: teal
		}

		/* Name.Constant */
		.highlight .ni
		{
			color: purple
		}

		/* Name.Entity */
		.highlight .ne
		{
			color: #990000
		}

		/* Name.Exception */
		.highlight .nn
		{
			color: #555
		}

		/* Name.Namespace */
		.highlight .nt
		{
			color: navy
		}

		/* Name.Tag */
		.highlight .nv,
		.highlight .nf
		{
			color: #3F6E74
		}

		/* Name.Variable,
		   Name.Function */
		.highlight .ow
		{
			font-weight: bold
		}

		/* Operator.Word */
		.highlight .w
		{
			color: #bbb
		}

		/* Text.Whitespace */
		.highlight .sb
		{
			color: #d14
		}

		/* Literal.String.Backtick */
		.highlight .sc
		{
			color: #d14
		}

		/* Literal.String.Char */
		.highlight .sd
		{
			color: #d14
		}

		/* Literal.String.Doc */
		.highlight .s2
		{
			color: #d14
		}

		/* Literal.String.Double */
		.highlight .se
		{
			color: #d14
		}

		/* Literal.String.Escape */
		.highlight .sh
		{
			color: #d14
		}

		/* Literal.String.Heredoc */
		.highlight .si
		{
			color: #d14
		}

		/* Literal.String.Interpol */
		.highlight .sx
		{
			color: #d14
		}

		/* Literal.String.Other */
		.highlight .sr
		{
			color: #009926
		}

		/* Literal.String.Regex */
		.highlight .s1
		{
			color: #d14
		}

		/* Literal.String.Single */
		.highlight .ss
		{
			color: #990073
		}

		/* Literal.String.Symbol */
		.highlight .bp
		{
			color: #999
		}

		/* Name.Builtin.Pseudo */
		.highlight .vc
		{
			color: teal
		}

		/* Name.Variable.Class */
		.highlight .vg
		{
			color: teal
		}

		/* Name.Variable.Global */
		.highlight .vi
		{
			color: teal
		}

		/* Name.Variable.Instance */
		.highlight .il
		{
			color: #099
		}

		/* Literal.Number.Integer.Long */
		*,*:before,*:after
		{
			-moz-box-sizing: border-box;
			-webkit-box-sizing: border-box;
			box-sizing: border-box

Extraction

		.highlight
		{
			background: #ffffff
		}

		.highlight .c,
		.highlight .cm,
		.highlight .cp,
		.highlight .c1,
		.highlight .cs
		{
			color: #007400;
		}
		/* Comment, 
		   Comment.Multiline, 
		   Comment.Preproc, 
		   Comment.Single, 
		   Comment.Special
		*/

		.highlight .k,
		.highlight .kc,
		.highlight .kd,
		.highlight .kp,
		.highlight .kr,
		.highlight .nb
		{
			color: #AA0D91;
		}
		/* Keyword,
		   Keyword.Constant,
		   Keyword.Declaration,
		   Keyword.Pseudo,
		   Name.Builtin */

		.highlight .kt
		{
			color: #3F6E74
		}

		/* Keyword.Reserved */
		.highlight .err
		{
			color: #a61717;
		}

		/* Error */
		.highlight .o
		{
			font-weight: bold
		}

		/* Operator */
		.highlight .gd
		{
			color: #000000;
			background-color: #fdd
		}

		/* Generic.Deleted */
		.highlight .gd .x
		{
			color: #000000;
			background-color: #faa
		}

		/* Generic.Deleted.Specific */
		.highlight .ge
		{
			font-style: italic
		}

		/* Generic.Emph */
		.highlight .gr
		{
			color: #a00
		}

		/* Generic.Error */
		.highlight .gh
		{
			color: #999
		}

		/* Generic.Heading */
		.highlight .gi
		{
			color: #000000;
			background-color: #dfd
		}

		/* Generic.Inserted */
		.highlight .gi .x
		{
			color: #000000;
			background-color: #afa
		}

		/* Generic.Inserted.Specific */
		.highlight .go
		{
			color: #888
		}

		/* Generic.Output */
		.highlight .gp
		{
			color: #555
		}

		/* Generic.Prompt */
		.highlight .gs
		{
			font-weight: bold
		}

		/* Generic.Strong */
		.highlight .gu
		{
			color: #aaa
		}

		/* Generic.Subheading */
		.highlight .gt
		{
			color: #a00
		}

		/* Generic.Traceback */
		.highlight .m,
		.highlight .mf,
		.highlight .mh,
		.highlight .mi,
		.highlight .mo
		{
			color: #1C00CF;
		}

		/* Literal.Number,
		   Literal.Number.Float,
		   Literal.Number.Hex,
		   Literal.Number.Integer,
		   Literal.Number.Oct */
		.highlight .s
		{
			color: #C41A16;
		}

		/* Literal.String */
		.highlight .na
		{
			color: teal
		}

		/* Name.Attribute */
		.highlight .nc
		{
			color: #5C2699
		}

		/* Name.Class */
		.highlight .no
		{
			color: teal
		}

		/* Name.Constant */
		.highlight .ni
		{
			color: purple
		}

		/* Name.Entity */
		.highlight .ne
		{
			color: #990000
		}

		/* Name.Exception */
		.highlight .nn
		{
			color: #555
		}

		/* Name.Namespace */
		.highlight .nt
		{
			color: navy
		}

		/* Name.Tag */
		.highlight .nv,
		.highlight .nf
		{
			color: #3F6E74
		}

		/* Name.Variable,
		   Name.Function */
		.highlight .ow
		{
			font-weight: bold
		}

		/* Operator.Word */
		.highlight .w
		{
			color: #bbb
		}

		/* Text.Whitespace */
		.highlight .sb
		{
			color: #d14
		}

		/* Literal.String.Backtick */
		.highlight .sc
		{
			color: #d14
		}

		/* Literal.String.Char */
		.highlight .sd
		{
			color: #d14
		}

		/* Literal.String.Doc */
		.highlight .s2
		{
			color: #d14
		}

		/* Literal.String.Double */
		.highlight .se
		{
			color: #d14
		}

		/* Literal.String.Escape */
		.highlight .sh
		{
			color: #d14
		}

		/* Literal.String.Heredoc */
		.highlight .si
		{
			color: #d14
		}

		/* Literal.String.Interpol */
		.highlight .sx
		{
			color: #d14
		}

		/* Literal.String.Other */
		.highlight .sr
		{
			color: #009926
		}

		/* Literal.String.Regex */
		.highlight .s1
		{
			color: #d14
		}

		/* Literal.String.Single */
		.highlight .ss
		{
			color: #990073
		}

		/* Literal.String.Symbol */
		.highlight .bp
		{
			color: #999
		}

		/* Name.Builtin.Pseudo */
		.highlight .vc
		{
			color: teal
		}

		/* Name.Variable.Class */
		.highlight .vg
		{
			color: teal
		}

		/* Name.Variable.Global */
		.highlight .vi
		{
			color: teal
		}

		/* Name.Variable.Instance */
		.highlight .il
		{
			color: #099
		}

		/* Literal.Number.Integer.Long */
		*,*:before,*:after
		{
			-moz-box-sizing: border-box;
			-webkit-box-sizing: border-box;
			box-sizing: border-box