Some comments to your macro (my *personal* opinion and style):

      

      1)

      Search("(!--MOD@DATE-->",ERRBREAK)

      Char(15)

      

      can be done in one command:

      

      Search("(!--MOD@DATE-->",ERRBREAK+ADVANCE)

      

      2)

      if(Match("|D|D|D|D|045|D|D|045|D|D")==0)

      

      can be written as

      

      if(Match("|D|D|D|D-|D|D-|D|D")==0)

      

      to be better readable.

      

      3)

      Goto MODATE

      

      Goto's should be avoided.

      They may produce unstructured, hard to maintain macros.

      

      4)

      Ins_Newline(1)

      Char(-2)

      

      Newlines are not always 2 bytes long. If you are editing

      Unix-style text it's only a <LF> for example.

      

      There is a variable to help here:

      Newline_Chars

      Number of chars in "newline" (See "File Types"). "0" in record/binary mode.