In a real-world example, I ran up against a limit on the number of
nested \input commands (about a dozen). Is that a hard limit?

Le 09/09/2021 à 19:21, Phillip Helbig (undress to reply) a écrit :
> In a real-world example, I ran up against a limit on the number of
> nested \input commands (about a dozen). Is that a hard limit?

Hello,

Usualy, the limit is 15. It isn(t hard-coded, it's specified in texmf.cnf

[...]
nest_size = 500 % simultaneous semantic levels (e.g., groups)
max_in_open = 15 % simultaneous input files and error insertions,
% also applies to MetaPost
param_size = 10000 % simultaneous macro parameters, also applies to
[...]

You have to modifiy this value in a personnal texmf.cnf file (don't
modify the texmf.cnf where max_in_open = 15 is written).

Jean-Côme Charpentier

Jean-Côme Charpentier <jean-come.charpentier@wanadoo.fr> writes:

> Le 09/09/2021 à 19:21, Phillip Helbig (undress to reply) a écrit :
>> In a real-world example, I ran up against a limit on the number of
>> nested \input commands (about a dozen). Is that a hard limit?
>
> Hello,
>
> Usualy, the limit is 15. It isn(t hard-coded, it's specified in texmf.cnf
>
> [...]
> nest_size = 500 % simultaneous semantic levels (e.g., groups)
> max_in_open = 15 % simultaneous input files and error insertions,
> % also applies to MetaPost
> param_size = 10000 % simultaneous macro parameters, also applies
> to [...]
>
> You have to modifiy this value in a personnal texmf.cnf file (don't
> modify the texmf.cnf where max_in_open = 15 is written).
>
> Jean-Côme Charpentier
>

Isn't there a limit of the system, that holds for any program on your
computer, not only pdflatex.

On 10/09/2021 21:28, vincent.belaiche@gmail.com wrote:
> Jean-Côme Charpentier <jean-come.charpentier@wanadoo.fr> writes:
>
>> Le 09/09/2021 à 19:21, Phillip Helbig (undress to reply) a écrit :
>>> In a real-world example, I ran up against a limit on the number of
>>> nested \input commands (about a dozen). Is that a hard limit?
>>
>> Hello,
>>
>> Usualy, the limit is 15. It isn(t hard-coded, it's specified in texmf.cnf
>>
>> [...]
>> nest_size = 500 % simultaneous semantic levels (e.g., groups)
>> max_in_open = 15 % simultaneous input files and error insertions,
>> % also applies to MetaPost
>> param_size = 10000 % simultaneous macro parameters, also applies
>> to [...]
>>
>> You have to modifiy this value in a personnal texmf.cnf file (don't
>> modify the texmf.cnf where max_in_open = 15 is written).
>>
>> Jean-Côme Charpentier
>>
>
> Isn't there a limit of the system, that holds for any program on your
> computer, not only pdflatex.

All operating systems have a limit to the number of concurrently open
files. Many systems let you reconfigure this. I believe for Unix-based
systems, which includes GNU/Linux and Apple Mac OS X, the upper bound is
2^{63}-1 (the limit of a 64-bit integer) but it is typically set by
default much lower per process, like 1024. In normal circumstances the
limit of concurrently open files is not something that a conventional
user will ever run into. I've only had to consider it once in 40+ years
in IT.

Peter

In article <m2v938xjih.fsf@pc40.home>, vincent.belaiche@gmail.com
writes:

> Jean-Côme Charpentier <jean-come.charpentier@wanadoo.fr> writes:
>
> > Le 09/09/2021 19:21, Phillip Helbig (undress to reply) a écrit :
> >> In a real-world example, I ran up against a limit on the number of
> >> nested \input commands (about a dozen). Is that a hard limit?
> >
> > Hello,
> >
> > Usualy, the limit is 15. It isn(t hard-coded, it's specified in texmf.cnf
> >
> > [...]
> > nest_size = 500 % simultaneous semantic levels (e.g., groups)
> > max_in_open = 15 % simultaneous input files and error insertions,
> > % also applies to MetaPost
> > param_size = 10000 % simultaneous macro parameters, also applies
> > to [...]
> >
> > You have to modifiy this value in a personnal texmf.cnf file (don't
> > modify the texmf.cnf where max_in_open = 15 is written).
> >
> > Jean-CÃŽme Charpentier
> >
>
> Isn't there a limit of the system, that holds for any program on your
> computer, not only pdflatex.

I'm using traditional latex, not pdflatex.

I also couldn't find texmf.cnf. Maybe it's called something else on
VMS, or my distribution is too old.

Am 11.09.2021 um 13:05 schrieb Phillip Helbig (undress to reply):
> In article <m2v938xjih.fsf@pc40.home>, vincent.belaiche@gmail.com
> writes:
>
>> Jean-Côme Charpentier <jean-come.charpentier@wanadoo.fr> writes:
>>
>>> Le 09/09/2021 19:21, Phillip Helbig (undress to reply) a écrit :
>>>> In a real-world example, I ran up against a limit on the number of
>>>> nested \input commands (about a dozen). Is that a hard limit?
>>>
>>> Hello,
>>>
>>> Usualy, the limit is 15. It isn(t hard-coded, it's specified in texmf.cnf
>>>
>>> [...]
>>> nest_size = 500 % simultaneous semantic levels (e.g., groups)
>>> max_in_open = 15 % simultaneous input files and error insertions,
>>> % also applies to MetaPost
>>> param_size = 10000 % simultaneous macro parameters, also applies
>>> to [...]
>>>
>>> You have to modifiy this value in a personnal texmf.cnf file (don't
>>> modify the texmf.cnf where max_in_open = 15 is written).
>>>
>>> Jean-CÃŽme Charpentier
>>>
>>
>> Isn't there a limit of the system, that holds for any program on your
>> computer, not only pdflatex.
>
> I'm using traditional latex, not pdflatex.
>
> I also couldn't find texmf.cnf. Maybe it's called something else on
> VMS, or my distribution is too old.
>

in texlive it is in xxx:\texlive\2021\texmf-dist\web2c and in the
derived xxx:\texlive\2021

On Sep 11, 2021 at 6:05:42 AM CDT, "Phillip Helbig (undress to reply)"
<Phillip Helbig (undress to reply)> wrote:

>
> I'm using traditional latex, not pdflatex.
>

Howdy,

In recent TeX Distributions latex is really pdflatex but using pdftex's dvi
mode.

Good Luck,
Herb Schulz

Am 11.09.21 um 13:05 schrieb Phillip Helbig (undress to reply):
....
>
> I'm using traditional latex, not pdflatex.
>
> I also couldn't find texmf.cnf. Maybe it's called something else on
> VMS, or my distribution is too old.
>

If you use VMS, you can be sure that your TeX installation is very out
of date.

....Rolf

In article <shie87$a5n$1@gioia.aioe.org>, John Doe
<john.doe@myemail.invalid> writes:

> > I'm using traditional latex, not pdflatex.
>
> Howdy,
>
> In recent TeX Distributions latex is really pdflatex but using pdftex's dvi
> mode.

Yes, but my distribution is not recent. :-|

In article <iq3umjFla06U1@mid.individual.net>, Rolf Niepraschk
<Rolf.Niepraschk@gmx.de> writes:

> Am 11.09.21 um 13:05 schrieb Phillip Helbig (undress to reply):
> >
> > I'm using traditional latex, not pdflatex.
> >
> > I also couldn't find texmf.cnf. Maybe it's called something else on
> > VMS, or my distribution is too old.
>
> If you use VMS, you can be sure that your TeX installation is very out
> of date.

In some sense it is. On the other hand, it probably COULD have updated.
Whenever I need something newer, I get it from CTAN.