Date: Wed, 28 Oct 2020 08:12:14 -0500 From: Kyle Evans <kevans@freebsd.org> To: =?UTF-8?B?U3RlZmFuIEXDn2Vy?= <se@freebsd.org> Cc: src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org> Subject: Re: svn commit: r367103 - head/usr.bin/calendar Message-ID: <CACNAnaERLh7NvWQ45FZd_s94rApwzyDpah2APP3m=VbfBZrTgg@mail.gmail.com> In-Reply-To: <202010281306.09SD6dgf040611@repo.freebsd.org> References: <202010281306.09SD6dgf040611@repo.freebsd.org>
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On Wed, Oct 28, 2020 at 8:06 AM Stefan E=C3=9Fer <se@freebsd.org> wrote: > > Author: se > Date: Wed Oct 28 13:06:39 2020 > New Revision: 367103 > URL: https://svnweb.freebsd.org/changeset/base/367103 > > Log: > Fix parsing of #ifdef in calendar files > > There was code to process an #ifndef tokens, but none for #ifdef. > The #ifdef token was mentioned as unsupported in the BUGS section, > but no reason was given and I do not see why it should stay omitted. > > Misleading information in The BUGS section of the man-page regarding > the maximum number of #define and #include statements supported has > been removed. These limits might have applied to a prior version of > this program, but do not seem to apply to the current implementation. > > I have not tried to test for the existence of the limits, but the > include file processing just recursively calls the parser (without > counting the recursion depth) and the stringlist functions do not > impose a limit on the number of entries. > > Reported by: jhs@berklix.com > MFC after: 3 days > > Modified: > head/usr.bin/calendar/calendar.1 > head/usr.bin/calendar/io.c > > Modified: head/usr.bin/calendar/calendar.1 > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D > --- head/usr.bin/calendar/calendar.1 Wed Oct 28 11:54:09 2020 (= r367102) > +++ head/usr.bin/calendar/calendar.1 Wed Oct 28 13:06:39 2020 (= r367103) > @@ -346,11 +346,9 @@ double-check the start and end time of solar and lun= ar > .Sh BUGS > The > .Nm > -internal cpp does not correctly do #ifndef and will discard the rest > -of the file if a #ifndef is triggered. > -It also has a maximum of 50 include file and/or 100 #defines > -and only recognises #include, #define and > -#ifndef. > +internal cpp does not support nested conditions and will continue > +parsing of the input file on the next #endif even in nested contexts. > +It does only recognise #include, #define, #ifdef and #ifndef. > .Pp > There is no possibility to properly specify the local position > needed for solar and lunar calculations. > > Modified: head/usr.bin/calendar/io.c > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D > --- head/usr.bin/calendar/io.c Wed Oct 28 11:54:09 2020 (r367102) > +++ head/usr.bin/calendar/io.c Wed Oct 28 13:06:39 2020 (r367103) > @@ -212,6 +212,21 @@ token(char *line, FILE *out, bool *skip) > return (T_OK); > } > > + if (strncmp(line, "ifdef", 5) =3D=3D 0) { > + walk =3D line + 6; > + trimlr(&walk); > + I think you wanted to step walk forward 5 instead of 6 here
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