From: Caleb Clausen <vikkous@...>
Date: 2010-03-03T05:31:50+09:00
Subject: Re: Remove comments from ruby source code?

On 3/2/10, Arul hari <hariharan.spc@rediffmail.com> wrote:
> Dear Friends,
>       I am facing problem after removing comments.
>
>
>    #! => should not remove from the source code , but I am using
> ruby2ruby module to remove the comments. Is there any way to not remove
> the #! line.
>
>  Please anyone help me to go ahed on this. Kindly let me know it.

The obvious thing to do is to special case the shebang line. Since a
shebang can only occur on the first line of a source file, just
examine the first line before munging the source and if it's a
shebang, add it back after the munging is done.

Note that you'll have the same issue with magic encoding lines as
well. A magic encoding line can also occur on the 1st line (or 2nd
line if the 1st line is a shebang) and should also be preserved if
present. (This is a ruby 1.9 only feature, tho. If ruby 1.9
compatibility is important to you, ruby2ruby isn't going to work for
you for all kinds of other reasons....)