Re: Compile mp.w

--000000000000799fa206546dc8ef
Content-Type: text/plain; charset="UTF-8"

On Wed, 17 Jun 2026 at 00:14, Hong-Phuc Bui <[email protected]> wrote:

> Hello,
>
> I'm the author of this question:
> https://tex.stackexchange.com/questions/763896/how-to-compile-the-file-mp-w
>
> I cloned the repository https://gitlab.lisn.upsaclay.fr/texlive/metapost/
> and try to compile the file source\texk\web2c\mplibdir\mp.w with cweave
> like this:
>
> $ pwd
> /metapost/source/texk/web2c/mplibdir
> $ cweave mp.w
> $ pdftex mp.tex
> I got a error message:
>
> ! Missing $ inserted.
> <inserted text>
>                  $
> <to be read again>
>                     _
> <argument> \#define MPOST_
>                            DEBUG_ENVELOPE
> \C #1->\5\5\quad $/\ast \,${\cmntfont #1
>                                          }$\,\ast /$
> l.158 \M{5}\B\C{\#define MPOST_DEBUG_ENVELOPE }
>                                                 \6
>
> The answer is accepted, so I think it's a bug in mp.w. If it's a bug,
> could you fix it in next release?
>
> Best Wishes
> Hong-Phuc Bui
>

Ok.
For now you can use \_ or enclose the offending code between two | .

--
luigi

--000000000000799fa206546dc8ef
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote g=
mail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, 17 Jun =
2026 at 00:14, Hong-Phuc Bui &lt;<a href=3D"mailto:[email protected]">phuc=
[email protected]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padd=
ing-left:1ex">Hello,<br>
<br>
I&#39;m the author of this question:<br>
<a href=3D"https://tex.stackexchange.com/questions/763896/how-to-compile-th=
e-file-mp-w" rel=3D"noreferrer" target=3D"_blank">https://tex.stackexchange=
.com/questions/763896/how-to-compile-the-file-mp-w</a><br>
<br>
I cloned the repository <a href=3D"https://gitlab.lisn.upsaclay.fr/texlive/=
metapost/" rel=3D"noreferrer" target=3D"_blank">https://gitlab.lisn.upsacla=
y.fr/texlive/metapost/</a> and try to compile the file source\texk\web2c\mp=
libdir\mp.w with cweave like this:<br>
<br>
$ pwd<br>
/metapost/source/texk/web2c/mplibdir<br>
$ cweave mp.w<br>
$ pdftex mp.tex<br>
I got a error message:<br>
<br>
! Missing $ inserted.<br>
&lt;inserted text&gt;<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0$<br>
&lt;to be read again&gt;<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 _<br>
&lt;argument&gt; \#define MPOST_<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0DEBUG_ENVELOPE<br>
\C #1-&gt;\5\5\quad $/\ast \,${\cmntfont #1<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0}$=
\,\ast /$<br>
l.158 \M{5}\B\C{\#define MPOST_DEBUG_ENVELOPE }<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 \6<br>
<br>
The answer is accepted, so I think it&#39;s a bug in mp.w. If it&#39;s a bu=
g, could you fix it in next release?<br>
<br>
Best Wishes<br>
Hong-Phuc Bui<br></blockquote><div><br></div><div>Ok.</div><div>For now you=
 can use \_ or enclose the offending code between two | .<br></div><div><br=
></div><div>--</div><div>luigi</div></div></div>

--000000000000799fa206546dc8ef--