expl3-strategy to automatically update the title of a document, depending on its contentWhen is the aux file read and written?TeX and LaTeX differently expl3-x-written (exhaustive expansion) to an auxiliary fileExpl3' tl variable storing the result of a seq_map_inline: OK in article's title but not in beamer's titleWhat is the basic mechanism for writing something to an aux file?Replace inputfileX by the content of fileX automaticallyWrite on a file and input itTexmaker bibtex works with input not with includeChapters not showing in right order in PDF [solved]How to do multiple calls to includeonly?Including only a part of a TEX fileAny way to move content definition to end of latex input file for use earlier in the file?How to add my own directory to TexWorks search listExpl3' tl variable storing the result of a seq_map_inline: OK in article's title but not in beamer's title
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expl3-strategy to automatically update the title of a document, depending on its content
When is the aux file read and written?TeX and LaTeX differently expl3-x-written (exhaustive expansion) to an auxiliary fileExpl3' tl variable storing the result of a seq_map_inline: OK in article's title but not in beamer's titleWhat is the basic mechanism for writing something to an aux file?Replace inputfileX by the content of fileX automaticallyWrite on a file and input itTexmaker bibtex works with input not with includeChapters not showing in right order in PDF [solved]How to do multiple calls to includeonly?Including only a part of a TEX fileAny way to move content definition to end of latex input file for use earlier in the file?How to add my own directory to TexWorks search listExpl3' tl variable storing the result of a seq_map_inline: OK in article's title but not in beamer's title
Context
The current question arises:
- as an attempt to improve the aim explained in a question of mine
(Expl3' tl variable storing the result of a seq_map_inline: OK in article's title but not in beamer's title), - in order to explain why using
exp_not:Ninstead ofexp_not:V, as
suggested by egreg in his answer of another question of mine
(TeX and LaTeX differently expl3-x-written (exhaustive expansion) to an auxiliary file), is useless in my use case.
Aim (sum up)
I have a main (beamer) document, say main.tex, the content of which varying,
depending on the targeted audience. For this, main.tex inputs one or more of,
say, 5 slave files: topic1.tex, topic2.tex, topic3.tex, topic4.tex,topic5.tex.
Each topic (file) has a topic title and I want the title of the main document to
automatically be the list of the titles of the topics that are input (and only
the ones that are input).
For this, I used the following strategy:
- At the beginning of each topic file, the topic title is specified, thanks to
atopictitlemacro. - Each time it is used, this macro appends the corresponding topic title to the
right of ag_topics_seqsequence. - At the end of the (main) document:
- the content of
g_topics_seqsequence is placed in
ag_presentation_title_tltoken list, - the (not expanded:
exp_not:V) content ofg_presentation_title_tlisx-written to an auxiliary.sbjfile.
- the content of
- At the end of the preamble of the (main) document (hence at the next
compilation):- a scratch token list is
x-set to contain the content of the auxiliary
file, - the content of this scratch token list is passed to
title.
- a scratch token list is
The following MCE is the implementation of this strategy but I wonder if expl3
could provide a better one.
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
tl_new:N g_presentation_title_tl
iow_new:N g_output_stream
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
AtEndDocument
tl_gset:Nx g_presentation_title_tl
seq_use:Nng_topics_seq ,~
iow_open:Nn g_output_stream c_sys_jobname_str.sbj
iow_now:Nx g_output_stream exp_not:Vg_presentation_title_tl
iow_close:N g_output_stream
AtEndPreamble%
file_if_exist:nTF c_sys_jobname_str.sbj
tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj
exp_args:NV title l_tmpa_tl
titleNo topic!
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
expl3 input automation auxiliary-files
asked May 10 at 14:47
Denis BitouzéDenis Bitouzé
3,70211351
add a comment |
Context
The current question arises:
- as an attempt to improve the aim explained in a question of mine
(Expl3' tl variable storing the result of a seq_map_inline: OK in article's title but not in beamer's title), - in order to explain why using
exp_not:Ninstead ofexp_not:V, as
suggested by egreg in his answer of another question of mine
(TeX and LaTeX differently expl3-x-written (exhaustive expansion) to an auxiliary file), is useless in my use case.
Aim (sum up)
I have a main (beamer) document, say main.tex, the content of which varying,
depending on the targeted audience. For this, main.tex inputs one or more of,
say, 5 slave files: topic1.tex, topic2.tex, topic3.tex, topic4.tex,topic5.tex.
Each topic (file) has a topic title and I want the title of the main document to
automatically be the list of the titles of the topics that are input (and only
the ones that are input).
For this, I used the following strategy:
- At the beginning of each topic file, the topic title is specified, thanks to
atopictitlemacro. - Each time it is used, this macro appends the corresponding topic title to the
right of ag_topics_seqsequence. - At the end of the (main) document:
- the content of
g_topics_seqsequence is placed in
ag_presentation_title_tltoken list, - the (not expanded:
exp_not:V) content ofg_presentation_title_tlisx-written to an auxiliary.sbjfile.
- the content of
- At the end of the preamble of the (main) document (hence at the next
compilation):- a scratch token list is
x-set to contain the content of the auxiliary
file, - the content of this scratch token list is passed to
title.
- a scratch token list is
The following MCE is the implementation of this strategy but I wonder if expl3
could provide a better one.
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
tl_new:N g_presentation_title_tl
iow_new:N g_output_stream
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
AtEndDocument
tl_gset:Nx g_presentation_title_tl
seq_use:Nng_topics_seq ,~
iow_open:Nn g_output_stream c_sys_jobname_str.sbj
iow_now:Nx g_output_stream exp_not:Vg_presentation_title_tl
iow_close:N g_output_stream
AtEndPreamble%
file_if_exist:nTF c_sys_jobname_str.sbj
tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj
exp_args:NV title l_tmpa_tl
titleNo topic!
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
expl3 input automation auxiliary-files
asked May 10 at 14:47
Denis BitouzéDenis Bitouzé
3,70211351
1
it sounds a bit overdoing to use an extra file for this. Why don't you write to the aux-file?
– Ulrike Fischer
May 10 at 14:57
@UlrikeFischer I agree. That is what I tried first but, when I wanted to read the content of the.auxfile, it was empty (I probably didn't read it at the right moment). IIRC, I also had some difficulties to write both a verbatim text (e.g.titleand) and, inside, the (not expanded:exp_not:V) content ofg_presentation_title_tl.
– Denis Bitouzé
May 10 at 15:05
1
You don't have to manually read the.auxfile: it is automaticallyinputas part of the work done bybegindocument, before theAtBeginDocumenthooks are run.
– frougon
May 10 at 15:17
@frougon Yes, I know that but when I tried to exploit what was in it, it simply didn't exist according to LaTeX's message.
– Denis Bitouzé
May 10 at 15:38
Proof needed. :-)
– frougon
May 10 at 15:40
add a comment |
Context
The current question arises:
- as an attempt to improve the aim explained in a question of mine
(Expl3' tl variable storing the result of a seq_map_inline: OK in article's title but not in beamer's title), - in order to explain why using
exp_not:Ninstead ofexp_not:V, as
suggested by egreg in his answer of another question of mine
(TeX and LaTeX differently expl3-x-written (exhaustive expansion) to an auxiliary file), is useless in my use case.
Aim (sum up)
I have a main (beamer) document, say main.tex, the content of which varying,
depending on the targeted audience. For this, main.tex inputs one or more of,
say, 5 slave files: topic1.tex, topic2.tex, topic3.tex, topic4.tex,topic5.tex.
Each topic (file) has a topic title and I want the title of the main document to
automatically be the list of the titles of the topics that are input (and only
the ones that are input).
For this, I used the following strategy:
- At the beginning of each topic file, the topic title is specified, thanks to
atopictitlemacro. - Each time it is used, this macro appends the corresponding topic title to the
right of ag_topics_seqsequence. - At the end of the (main) document:
- the content of
g_topics_seqsequence is placed in
ag_presentation_title_tltoken list, - the (not expanded:
exp_not:V) content ofg_presentation_title_tlisx-written to an auxiliary.sbjfile.
- the content of
- At the end of the preamble of the (main) document (hence at the next
compilation):- a scratch token list is
x-set to contain the content of the auxiliary
file, - the content of this scratch token list is passed to
title.
- a scratch token list is
The following MCE is the implementation of this strategy but I wonder if expl3
could provide a better one.
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
tl_new:N g_presentation_title_tl
iow_new:N g_output_stream
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
AtEndDocument
tl_gset:Nx g_presentation_title_tl
seq_use:Nng_topics_seq ,~
iow_open:Nn g_output_stream c_sys_jobname_str.sbj
iow_now:Nx g_output_stream exp_not:Vg_presentation_title_tl
iow_close:N g_output_stream
AtEndPreamble%
file_if_exist:nTF c_sys_jobname_str.sbj
tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj
exp_args:NV title l_tmpa_tl
titleNo topic!
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
expl3 input automation auxiliary-files
asked May 10 at 14:47
Denis BitouzéDenis Bitouzé
3,70211351
Context
The current question arises:
- as an attempt to improve the aim explained in a question of mine
(Expl3' tl variable storing the result of a seq_map_inline: OK in article's title but not in beamer's title), - in order to explain why using
exp_not:Ninstead ofexp_not:V, as
suggested by egreg in his answer of another question of mine
(TeX and LaTeX differently expl3-x-written (exhaustive expansion) to an auxiliary file), is useless in my use case.
Aim (sum up)
I have a main (beamer) document, say main.tex, the content of which varying,
depending on the targeted audience. For this, main.tex inputs one or more of,
say, 5 slave files: topic1.tex, topic2.tex, topic3.tex, topic4.tex,topic5.tex.
Each topic (file) has a topic title and I want the title of the main document to
automatically be the list of the titles of the topics that are input (and only
the ones that are input).
For this, I used the following strategy:
- At the beginning of each topic file, the topic title is specified, thanks to
atopictitlemacro. - Each time it is used, this macro appends the corresponding topic title to the
right of ag_topics_seqsequence. - At the end of the (main) document:
- the content of
g_topics_seqsequence is placed in
ag_presentation_title_tltoken list, - the (not expanded:
exp_not:V) content ofg_presentation_title_tlisx-written to an auxiliary.sbjfile.
- the content of
- At the end of the preamble of the (main) document (hence at the next
compilation):- a scratch token list is
x-set to contain the content of the auxiliary
file, - the content of this scratch token list is passed to
title.
- a scratch token list is
The following MCE is the implementation of this strategy but I wonder if expl3
could provide a better one.
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
tl_new:N g_presentation_title_tl
iow_new:N g_output_stream
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
AtEndDocument
tl_gset:Nx g_presentation_title_tl
seq_use:Nng_topics_seq ,~
iow_open:Nn g_output_stream c_sys_jobname_str.sbj
iow_now:Nx g_output_stream exp_not:Vg_presentation_title_tl
iow_close:N g_output_stream
AtEndPreamble%
file_if_exist:nTF c_sys_jobname_str.sbj
tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj
exp_args:NV title l_tmpa_tl
titleNo topic!
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
expl3 input automation auxiliary-files
expl3 input automation auxiliary-files
asked May 10 at 14:47
Denis BitouzéDenis Bitouzé
3,70211351
asked May 10 at 14:47
Denis BitouzéDenis Bitouzé
3,70211351
edited May 10 at 15:12
Denis Bitouzé
asked May 10 at 14:47
Denis BitouzéDenis Bitouzé
3,70211351
asked May 10 at 14:47
Denis BitouzéDenis Bitouzé
3,70211351
asked May 10 at 14:47
Denis BitouzéDenis Bitouzé
3,70211351
3,70211351
1
it sounds a bit overdoing to use an extra file for this. Why don't you write to the aux-file?
– Ulrike Fischer
May 10 at 14:57
@UlrikeFischer I agree. That is what I tried first but, when I wanted to read the content of the.auxfile, it was empty (I probably didn't read it at the right moment). IIRC, I also had some difficulties to write both a verbatim text (e.g.titleand) and, inside, the (not expanded:exp_not:V) content ofg_presentation_title_tl.
– Denis Bitouzé
May 10 at 15:05
1
You don't have to manually read the.auxfile: it is automaticallyinputas part of the work done bybegindocument, before theAtBeginDocumenthooks are run.
– frougon
May 10 at 15:17
@frougon Yes, I know that but when I tried to exploit what was in it, it simply didn't exist according to LaTeX's message.
– Denis Bitouzé
May 10 at 15:38
Proof needed. :-)
– frougon
May 10 at 15:40
add a comment |
1
it sounds a bit overdoing to use an extra file for this. Why don't you write to the aux-file?
– Ulrike Fischer
May 10 at 14:57
@UlrikeFischer I agree. That is what I tried first but, when I wanted to read the content of the.auxfile, it was empty (I probably didn't read it at the right moment). IIRC, I also had some difficulties to write both a verbatim text (e.g.titleand) and, inside, the (not expanded:exp_not:V) content ofg_presentation_title_tl.
– Denis Bitouzé
May 10 at 15:05
1
You don't have to manually read the.auxfile: it is automaticallyinputas part of the work done bybegindocument, before theAtBeginDocumenthooks are run.
– frougon
May 10 at 15:17
@frougon Yes, I know that but when I tried to exploit what was in it, it simply didn't exist according to LaTeX's message.
– Denis Bitouzé
May 10 at 15:38
Proof needed. :-)
– frougon
May 10 at 15:40
1
1
it sounds a bit overdoing to use an extra file for this. Why don't you write to the aux-file?
– Ulrike Fischer
May 10 at 14:57
it sounds a bit overdoing to use an extra file for this. Why don't you write to the aux-file?
– Ulrike Fischer
May 10 at 14:57
@UlrikeFischer I agree. That is what I tried first but, when I wanted to read the content of the
.aux file, it was empty (I probably didn't read it at the right moment). IIRC, I also had some difficulties to write both a verbatim text (e.g.title and exp_not:V) content of g_presentation_title_tl.– Denis Bitouzé
May 10 at 15:05
@UlrikeFischer I agree. That is what I tried first but, when I wanted to read the content of the
.aux file, it was empty (I probably didn't read it at the right moment). IIRC, I also had some difficulties to write both a verbatim text (e.g.title and exp_not:V) content of g_presentation_title_tl.– Denis Bitouzé
May 10 at 15:05
1
1
You don't have to manually read the
.aux file: it is automatically input as part of the work done by begindocument, before the AtBeginDocument hooks are run.– frougon
May 10 at 15:17
You don't have to manually read the
.aux file: it is automatically input as part of the work done by begindocument, before the AtBeginDocument hooks are run.– frougon
May 10 at 15:17
@frougon Yes, I know that but when I tried to exploit what was in it, it simply didn't exist according to LaTeX's message.
– Denis Bitouzé
May 10 at 15:38
@frougon Yes, I know that but when I tried to exploit what was in it, it simply didn't exist according to LaTeX's message.
– Denis Bitouzé
May 10 at 15:38
Proof needed. :-)
– frougon
May 10 at 15:40
Proof needed. :-)
– frougon
May 10 at 15:40
add a comment |
2 Answers
2
active
oldest
votes
I would simply write to the aux-file:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandaddtopictitlem
seq_gput_right:Nng_topics_seq #1
makeatletter
NewDocumentCommandtopictitlem
iow_now:Nx @mainaux
exp_not:n addtopictitle#1
titleseq_use:Nng_topics_seq ,~
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
inputtopic4
inputtopic5
enddocument
answered May 10 at 15:26
Ulrike FischerUlrike Fischer
203k9312701
add a comment |
I'd do as Ulrike suggests, writing to the @mainaux to avoid polluting the file streams. I'd also avoid expansion (mainly x-type) of the text, as this is likely to cause you trouble.
Note also that in your code the tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj didn't do anything because input is not expandable, so you ended up with titleinputjobname.sbj.
The approach I propose is to, at the end of the document, write a gdef@input@topics<stuff> to the @mainaux, which will be read in the next run. After the file is read then the @input@topics is already known and can be simply used in the title. The written definition has to be global because the contents of the .aux file are read inside a group.
At the writing step I used e-type expansion in seq_use:Nn because x-type expansion is too much, and because f-type would try to expand the first tokens of the title, which would expand TeX unless there was a space before it. Everything is put in exp_not:e to avoid the x expansion of write. An extra exp_not:N is needed before @input@topics for later runs, where it is already defined.
Here's the code:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitleTeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
makeatletter
AtEndDocument
iow_now:Nx @auxout
gdef exp_not:N @input@topics
exp_not:e seq_use:Nn g_topics_seq ,~
AtBeginDocument
cs_if_exist:NTF @input@topics
exp_args:NV title @input@topics
title No~topic!
makeatother
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
answered May 10 at 15:16
Phelype OleinikPhelype Oleinik
27.4k54793
Very nice explanations about expansions, that I still find hard to understand correctly.
– Denis Bitouzé
May 10 at 15:35
@DenisBitouzé Sorry if I couldn't explain it right. You mean the types of expansion (e,f,x)? If so you can take a look atinterface3.pdf(texdoc interface3), section 3 Introducing the variants.
– Phelype Oleinik
May 10 at 15:40
add a comment |
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I would simply write to the aux-file:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandaddtopictitlem
seq_gput_right:Nng_topics_seq #1
makeatletter
NewDocumentCommandtopictitlem
iow_now:Nx @mainaux
exp_not:n addtopictitle#1
titleseq_use:Nng_topics_seq ,~
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
inputtopic4
inputtopic5
enddocument
answered May 10 at 15:26
Ulrike FischerUlrike Fischer
203k9312701
add a comment |
I would simply write to the aux-file:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandaddtopictitlem
seq_gput_right:Nng_topics_seq #1
makeatletter
NewDocumentCommandtopictitlem
iow_now:Nx @mainaux
exp_not:n addtopictitle#1
titleseq_use:Nng_topics_seq ,~
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
inputtopic4
inputtopic5
enddocument
answered May 10 at 15:26
Ulrike FischerUlrike Fischer
203k9312701
add a comment |
I would simply write to the aux-file:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandaddtopictitlem
seq_gput_right:Nng_topics_seq #1
makeatletter
NewDocumentCommandtopictitlem
iow_now:Nx @mainaux
exp_not:n addtopictitle#1
titleseq_use:Nng_topics_seq ,~
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
inputtopic4
inputtopic5
enddocument
answered May 10 at 15:26
Ulrike FischerUlrike Fischer
203k9312701
I would simply write to the aux-file:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitle% TeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandaddtopictitlem
seq_gput_right:Nng_topics_seq #1
makeatletter
NewDocumentCommandtopictitlem
iow_now:Nx @mainaux
exp_not:n addtopictitle#1
titleseq_use:Nng_topics_seq ,~
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
inputtopic4
inputtopic5
enddocument
answered May 10 at 15:26
Ulrike FischerUlrike Fischer
203k9312701
answered May 10 at 15:26
Ulrike FischerUlrike Fischer
203k9312701
answered May 10 at 15:26
Ulrike FischerUlrike Fischer
203k9312701
answered May 10 at 15:26
Ulrike FischerUlrike Fischer
203k9312701
203k9312701
add a comment |
add a comment |
I'd do as Ulrike suggests, writing to the @mainaux to avoid polluting the file streams. I'd also avoid expansion (mainly x-type) of the text, as this is likely to cause you trouble.
Note also that in your code the tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj didn't do anything because input is not expandable, so you ended up with titleinputjobname.sbj.
The approach I propose is to, at the end of the document, write a gdef@input@topics<stuff> to the @mainaux, which will be read in the next run. After the file is read then the @input@topics is already known and can be simply used in the title. The written definition has to be global because the contents of the .aux file are read inside a group.
At the writing step I used e-type expansion in seq_use:Nn because x-type expansion is too much, and because f-type would try to expand the first tokens of the title, which would expand TeX unless there was a space before it. Everything is put in exp_not:e to avoid the x expansion of write. An extra exp_not:N is needed before @input@topics for later runs, where it is already defined.
Here's the code:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitleTeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
makeatletter
AtEndDocument
iow_now:Nx @auxout
gdef exp_not:N @input@topics
exp_not:e seq_use:Nn g_topics_seq ,~
AtBeginDocument
cs_if_exist:NTF @input@topics
exp_args:NV title @input@topics
title No~topic!
makeatother
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
answered May 10 at 15:16
Phelype OleinikPhelype Oleinik
27.4k54793
Very nice explanations about expansions, that I still find hard to understand correctly.
– Denis Bitouzé
May 10 at 15:35
@DenisBitouzé Sorry if I couldn't explain it right. You mean the types of expansion (e,f,x)? If so you can take a look atinterface3.pdf(texdoc interface3), section 3 Introducing the variants.
– Phelype Oleinik
May 10 at 15:40
add a comment |
I'd do as Ulrike suggests, writing to the @mainaux to avoid polluting the file streams. I'd also avoid expansion (mainly x-type) of the text, as this is likely to cause you trouble.
Note also that in your code the tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj didn't do anything because input is not expandable, so you ended up with titleinputjobname.sbj.
The approach I propose is to, at the end of the document, write a gdef@input@topics<stuff> to the @mainaux, which will be read in the next run. After the file is read then the @input@topics is already known and can be simply used in the title. The written definition has to be global because the contents of the .aux file are read inside a group.
At the writing step I used e-type expansion in seq_use:Nn because x-type expansion is too much, and because f-type would try to expand the first tokens of the title, which would expand TeX unless there was a space before it. Everything is put in exp_not:e to avoid the x expansion of write. An extra exp_not:N is needed before @input@topics for later runs, where it is already defined.
Here's the code:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitleTeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
makeatletter
AtEndDocument
iow_now:Nx @auxout
gdef exp_not:N @input@topics
exp_not:e seq_use:Nn g_topics_seq ,~
AtBeginDocument
cs_if_exist:NTF @input@topics
exp_args:NV title @input@topics
title No~topic!
makeatother
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
answered May 10 at 15:16
Phelype OleinikPhelype Oleinik
27.4k54793
Very nice explanations about expansions, that I still find hard to understand correctly.
– Denis Bitouzé
May 10 at 15:35
@DenisBitouzé Sorry if I couldn't explain it right. You mean the types of expansion (e,f,x)? If so you can take a look atinterface3.pdf(texdoc interface3), section 3 Introducing the variants.
– Phelype Oleinik
May 10 at 15:40
add a comment |
I'd do as Ulrike suggests, writing to the @mainaux to avoid polluting the file streams. I'd also avoid expansion (mainly x-type) of the text, as this is likely to cause you trouble.
Note also that in your code the tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj didn't do anything because input is not expandable, so you ended up with titleinputjobname.sbj.
The approach I propose is to, at the end of the document, write a gdef@input@topics<stuff> to the @mainaux, which will be read in the next run. After the file is read then the @input@topics is already known and can be simply used in the title. The written definition has to be global because the contents of the .aux file are read inside a group.
At the writing step I used e-type expansion in seq_use:Nn because x-type expansion is too much, and because f-type would try to expand the first tokens of the title, which would expand TeX unless there was a space before it. Everything is put in exp_not:e to avoid the x expansion of write. An extra exp_not:N is needed before @input@topics for later runs, where it is already defined.
Here's the code:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitleTeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
makeatletter
AtEndDocument
iow_now:Nx @auxout
gdef exp_not:N @input@topics
exp_not:e seq_use:Nn g_topics_seq ,~
AtBeginDocument
cs_if_exist:NTF @input@topics
exp_args:NV title @input@topics
title No~topic!
makeatother
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
answered May 10 at 15:16
Phelype OleinikPhelype Oleinik
27.4k54793
I'd do as Ulrike suggests, writing to the @mainaux to avoid polluting the file streams. I'd also avoid expansion (mainly x-type) of the text, as this is likely to cause you trouble.
Note also that in your code the tl_set:Nx l_tmpa_tl file_input:n c_sys_jobname_str.sbj didn't do anything because input is not expandable, so you ended up with titleinputjobname.sbj.
The approach I propose is to, at the end of the document, write a gdef@input@topics<stuff> to the @mainaux, which will be read in the next run. After the file is read then the @input@topics is already known and can be simply used in the title. The written definition has to be global because the contents of the .aux file are read inside a group.
At the writing step I used e-type expansion in seq_use:Nn because x-type expansion is too much, and because f-type would try to expand the first tokens of the title, which would expand TeX unless there was a space before it. Everything is put in exp_not:e to avoid the x expansion of write. An extra exp_not:N is needed before @input@topics for later runs, where it is already defined.
Here's the code:
documentclassbeamer
usepackage[T1]fontenc
usepackage[utf8]inputenc
usepackagefilecontents
usepackage[check-declarations]expl3
usepackagexparse
beginfilecontents*topic1
topictitleTeX,
LaTeX and café%
beginframe
TeX, LaTeX and café are nice!
endframe
endfilecontents*
beginfilecontents*topic2
topictitleTopic 2
beginframe
Topic 2 is nice!
endframe
endfilecontents*
beginfilecontents*topic3
topictitleTopic 3
beginframe
Topic 3 is nice!
endframe
endfilecontents*
beginfilecontents*topic4
topictitleTopic 4
beginframe
Topic 4 is nice!
endframe
endfilecontents*
beginfilecontents*topic5
topictitleTopic 5
beginframe
Topic 5 is nice!
endframe
endfilecontents*
ExplSyntaxOn
seq_new:N g_topics_seq
NewDocumentCommandtopictitlem
__topic_title:n #1
cs_new_protected:Npn __topic_title:n #1
seq_gput_right:Nn g_topics_seq #1
makeatletter
AtEndDocument
iow_now:Nx @auxout
gdef exp_not:N @input@topics
exp_not:e seq_use:Nn g_topics_seq ,~
AtBeginDocument
cs_if_exist:NTF @input@topics
exp_args:NV title @input@topics
title No~topic!
makeatother
ExplSyntaxOff
begindocument
maketitle
%
inputtopic1
% inputtopic2
inputtopic3
% inputtopic4
inputtopic5
enddocument
answered May 10 at 15:16
Phelype OleinikPhelype Oleinik
27.4k54793
edited May 10 at 15:26
answered May 10 at 15:16
Phelype OleinikPhelype Oleinik
27.4k54793
answered May 10 at 15:16
Phelype OleinikPhelype Oleinik
27.4k54793
answered May 10 at 15:16
Phelype OleinikPhelype Oleinik
27.4k54793
27.4k54793
Very nice explanations about expansions, that I still find hard to understand correctly.
– Denis Bitouzé
May 10 at 15:35
@DenisBitouzé Sorry if I couldn't explain it right. You mean the types of expansion (e,f,x)? If so you can take a look atinterface3.pdf(texdoc interface3), section 3 Introducing the variants.
– Phelype Oleinik
May 10 at 15:40
add a comment |
Very nice explanations about expansions, that I still find hard to understand correctly.
– Denis Bitouzé
May 10 at 15:35
@DenisBitouzé Sorry if I couldn't explain it right. You mean the types of expansion (e,f,x)? If so you can take a look atinterface3.pdf(texdoc interface3), section 3 Introducing the variants.
– Phelype Oleinik
May 10 at 15:40
Very nice explanations about expansions, that I still find hard to understand correctly.
– Denis Bitouzé
May 10 at 15:35
Very nice explanations about expansions, that I still find hard to understand correctly.
– Denis Bitouzé
May 10 at 15:35
@DenisBitouzé Sorry if I couldn't explain it right. You mean the types of expansion (
e, f, x)? If so you can take a look at interface3.pdf (texdoc interface3), section 3 Introducing the variants.– Phelype Oleinik
May 10 at 15:40
@DenisBitouzé Sorry if I couldn't explain it right. You mean the types of expansion (
e, f, x)? If so you can take a look at interface3.pdf (texdoc interface3), section 3 Introducing the variants.– Phelype Oleinik
May 10 at 15:40
add a comment |
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1
it sounds a bit overdoing to use an extra file for this. Why don't you write to the aux-file?
– Ulrike Fischer
May 10 at 14:57
@UlrikeFischer I agree. That is what I tried first but, when I wanted to read the content of the
.auxfile, it was empty (I probably didn't read it at the right moment). IIRC, I also had some difficulties to write both a verbatim text (e.g.titleand) and, inside, the (not expanded:exp_not:V) content ofg_presentation_title_tl.– Denis Bitouzé
May 10 at 15:05
1
You don't have to manually read the
.auxfile: it is automaticallyinputas part of the work done bybegindocument, before theAtBeginDocumenthooks are run.– frougon
May 10 at 15:17
@frougon Yes, I know that but when I tried to exploit what was in it, it simply didn't exist according to LaTeX's message.
– Denis Bitouzé
May 10 at 15:38
Proof needed. :-)
– frougon
May 10 at 15:40