How to read %%Pages:… from *.xbb file












3














Given the auxiliary file test.xbb



%%Title: test.pdf

%%Creator: extractbb 20180506

%%BoundingBox: 0 0 300 343

%%HiResBoundingBox: 0.000000 0.000000 300.290000 342.810000

%%PDFVersion: 1.4

%%Pages: 17

%%CreationDate: Mon Jan  7 18:06:49 2019


produced from input file test.pdf using the extractbb utility



extractbb test.pdf



Is there an easy way to read the value of the %%Pages: key from test.xbb by means of some internal command defined in the graphics package? I know that graphics parses user provided xbb files in order to determine bounding-box coordinates for binary-type or compressed image files that TeX cannot read on its own. Can it do the same for %%Pages: out of the box?






graphics pdf







share|improve this question


















  • 1




    Are you interested in Get number of pages of external PDF?
    – Werner
    4 hours ago










  • Yes, but without using pdftex, luatex, xetex, just by reading xbb while running (pdf|lua)latex in DVI mode.
    – AlexG
    4 hours ago












  • I see nothing in the code. It wouldn't imho be very difficult to add it, but can't you read the xbb yourself?
    – Ulrike Fischer
    4 hours ago










  • @UlrikeFischer : Thank you. It would be nice if such a thing would already exist, but maybe I will have to homebrew something myself based on graphics code.
    – AlexG
    4 hours ago










  • actually main thing you'd have to change is the code that makes it stop reading the file once it has found a bounding box.... although if you know it's a xbb file with that format rather than arbitrary eps file, it might be as easy to simply input it rather than use the read loop from graphics
    – David Carlisle
    3 hours ago
















3














Given the auxiliary file test.xbb



%%Title: test.pdf

%%Creator: extractbb 20180506

%%BoundingBox: 0 0 300 343

%%HiResBoundingBox: 0.000000 0.000000 300.290000 342.810000

%%PDFVersion: 1.4

%%Pages: 17

%%CreationDate: Mon Jan  7 18:06:49 2019


produced from input file test.pdf using the extractbb utility



extractbb test.pdf



Is there an easy way to read the value of the %%Pages: key from test.xbb by means of some internal command defined in the graphics package? I know that graphics parses user provided xbb files in order to determine bounding-box coordinates for binary-type or compressed image files that TeX cannot read on its own. Can it do the same for %%Pages: out of the box?






graphics pdf







share|improve this question


















  • 1




    Are you interested in Get number of pages of external PDF?
    – Werner
    4 hours ago










  • Yes, but without using pdftex, luatex, xetex, just by reading xbb while running (pdf|lua)latex in DVI mode.
    – AlexG
    4 hours ago












  • I see nothing in the code. It wouldn't imho be very difficult to add it, but can't you read the xbb yourself?
    – Ulrike Fischer
    4 hours ago










  • @UlrikeFischer : Thank you. It would be nice if such a thing would already exist, but maybe I will have to homebrew something myself based on graphics code.
    – AlexG
    4 hours ago










  • actually main thing you'd have to change is the code that makes it stop reading the file once it has found a bounding box.... although if you know it's a xbb file with that format rather than arbitrary eps file, it might be as easy to simply input it rather than use the read loop from graphics
    – David Carlisle
    3 hours ago














3












3








3







Given the auxiliary file test.xbb



%%Title: test.pdf

%%Creator: extractbb 20180506

%%BoundingBox: 0 0 300 343

%%HiResBoundingBox: 0.000000 0.000000 300.290000 342.810000

%%PDFVersion: 1.4

%%Pages: 17

%%CreationDate: Mon Jan  7 18:06:49 2019


produced from input file test.pdf using the extractbb utility



extractbb test.pdf



Is there an easy way to read the value of the %%Pages: key from test.xbb by means of some internal command defined in the graphics package? I know that graphics parses user provided xbb files in order to determine bounding-box coordinates for binary-type or compressed image files that TeX cannot read on its own. Can it do the same for %%Pages: out of the box?






graphics pdf







share|improve this question













Given the auxiliary file test.xbb



%%Title: test.pdf

%%Creator: extractbb 20180506

%%BoundingBox: 0 0 300 343

%%HiResBoundingBox: 0.000000 0.000000 300.290000 342.810000

%%PDFVersion: 1.4

%%Pages: 17

%%CreationDate: Mon Jan  7 18:06:49 2019


produced from input file test.pdf using the extractbb utility



extractbb test.pdf



Is there an easy way to read the value of the %%Pages: key from test.xbb by means of some internal command defined in the graphics package? I know that graphics parses user provided xbb files in order to determine bounding-box coordinates for binary-type or compressed image files that TeX cannot read on its own. Can it do the same for %%Pages: out of the box?






graphics pdf




graphics pdf






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 4 hours ago









AlexGAlexG

32.3k479143




32.3k479143








  • 1




    Are you interested in Get number of pages of external PDF?
    – Werner
    4 hours ago










  • Yes, but without using pdftex, luatex, xetex, just by reading xbb while running (pdf|lua)latex in DVI mode.
    – AlexG
    4 hours ago












  • I see nothing in the code. It wouldn't imho be very difficult to add it, but can't you read the xbb yourself?
    – Ulrike Fischer
    4 hours ago










  • @UlrikeFischer : Thank you. It would be nice if such a thing would already exist, but maybe I will have to homebrew something myself based on graphics code.
    – AlexG
    4 hours ago










  • actually main thing you'd have to change is the code that makes it stop reading the file once it has found a bounding box.... although if you know it's a xbb file with that format rather than arbitrary eps file, it might be as easy to simply input it rather than use the read loop from graphics
    – David Carlisle
    3 hours ago














  • 1




    Are you interested in Get number of pages of external PDF?
    – Werner
    4 hours ago










  • Yes, but without using pdftex, luatex, xetex, just by reading xbb while running (pdf|lua)latex in DVI mode.
    – AlexG
    4 hours ago












  • I see nothing in the code. It wouldn't imho be very difficult to add it, but can't you read the xbb yourself?
    – Ulrike Fischer
    4 hours ago










  • @UlrikeFischer : Thank you. It would be nice if such a thing would already exist, but maybe I will have to homebrew something myself based on graphics code.
    – AlexG
    4 hours ago










  • actually main thing you'd have to change is the code that makes it stop reading the file once it has found a bounding box.... although if you know it's a xbb file with that format rather than arbitrary eps file, it might be as easy to simply input it rather than use the read loop from graphics
    – David Carlisle
    3 hours ago








1




1




Are you interested in Get number of pages of external PDF?
– Werner
4 hours ago




Are you interested in Get number of pages of external PDF?
– Werner
4 hours ago












Yes, but without using pdftex, luatex, xetex, just by reading xbb while running (pdf|lua)latex in DVI mode.
– AlexG
4 hours ago






Yes, but without using pdftex, luatex, xetex, just by reading xbb while running (pdf|lua)latex in DVI mode.
– AlexG
4 hours ago














I see nothing in the code. It wouldn't imho be very difficult to add it, but can't you read the xbb yourself?
– Ulrike Fischer
4 hours ago




I see nothing in the code. It wouldn't imho be very difficult to add it, but can't you read the xbb yourself?
– Ulrike Fischer
4 hours ago












@UlrikeFischer : Thank you. It would be nice if such a thing would already exist, but maybe I will have to homebrew something myself based on graphics code.
– AlexG
4 hours ago




@UlrikeFischer : Thank you. It would be nice if such a thing would already exist, but maybe I will have to homebrew something myself based on graphics code.
– AlexG
4 hours ago












actually main thing you'd have to change is the code that makes it stop reading the file once it has found a bounding box.... although if you know it's a xbb file with that format rather than arbitrary eps file, it might be as easy to simply input it rather than use the read loop from graphics
– David Carlisle
3 hours ago




actually main thing you'd have to change is the code that makes it stop reading the file once it has found a bounding box.... although if you know it's a xbb file with that format rather than arbitrary eps file, it might be as easy to simply input it rather than use the read loop from graphics
– David Carlisle
3 hours ago










1 Answer
1






active

oldest

votes


















5














enter image description here



documentclass{article}



begin{document}





{%

def%#1:#2@{expandafterxdefcsname ZZ#1endcsname{#2}}%

endlinechar`@ %

catcode`%=0 sbox0{input{test.xbb}}}%





Pages: ZZPages

end{document}





share|improve this answer























  • Oh my, you are the greatest! Thank you!
    – AlexG
    3 hours ago










  • Would you please explain why input must be placed into an sbox? To prevent any typeset output?
    – AlexG
    3 hours ago










  • @AlexG try without:-) yes as you say it throws away any accidental typeset result, in fact you get a typeset @ from the final newline, which could be avoided in other ways but....
    – David Carlisle
    3 hours ago










  • Ok. Very smart! And what about the double percent sign in the input? I can see only one % in def%...
    – AlexG
    3 hours ago












  • @AlexG if % has catcode 0 (escape character ) then %% references the same command as % the command with name % just as \ references the command with name
    – David Carlisle
    3 hours ago











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1 Answer
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1 Answer
1






active

oldest

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active

oldest

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active

oldest

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5














enter image description here



documentclass{article}



begin{document}





{%

def%#1:#2@{expandafterxdefcsname ZZ#1endcsname{#2}}%

endlinechar`@ %

catcode`%=0 sbox0{input{test.xbb}}}%





Pages: ZZPages

end{document}





share|improve this answer























  • Oh my, you are the greatest! Thank you!
    – AlexG
    3 hours ago










  • Would you please explain why input must be placed into an sbox? To prevent any typeset output?
    – AlexG
    3 hours ago










  • @AlexG try without:-) yes as you say it throws away any accidental typeset result, in fact you get a typeset @ from the final newline, which could be avoided in other ways but....
    – David Carlisle
    3 hours ago










  • Ok. Very smart! And what about the double percent sign in the input? I can see only one % in def%...
    – AlexG
    3 hours ago












  • @AlexG if % has catcode 0 (escape character ) then %% references the same command as % the command with name % just as \ references the command with name
    – David Carlisle
    3 hours ago
















5














enter image description here



documentclass{article}



begin{document}





{%

def%#1:#2@{expandafterxdefcsname ZZ#1endcsname{#2}}%

endlinechar`@ %

catcode`%=0 sbox0{input{test.xbb}}}%





Pages: ZZPages

end{document}





share|improve this answer























  • Oh my, you are the greatest! Thank you!
    – AlexG
    3 hours ago










  • Would you please explain why input must be placed into an sbox? To prevent any typeset output?
    – AlexG
    3 hours ago










  • @AlexG try without:-) yes as you say it throws away any accidental typeset result, in fact you get a typeset @ from the final newline, which could be avoided in other ways but....
    – David Carlisle
    3 hours ago










  • Ok. Very smart! And what about the double percent sign in the input? I can see only one % in def%...
    – AlexG
    3 hours ago












  • @AlexG if % has catcode 0 (escape character ) then %% references the same command as % the command with name % just as \ references the command with name
    – David Carlisle
    3 hours ago














5












5








5






enter image description here



documentclass{article}



begin{document}





{%

def%#1:#2@{expandafterxdefcsname ZZ#1endcsname{#2}}%

endlinechar`@ %

catcode`%=0 sbox0{input{test.xbb}}}%





Pages: ZZPages

end{document}





share|improve this answer














enter image description here



documentclass{article}



begin{document}





{%

def%#1:#2@{expandafterxdefcsname ZZ#1endcsname{#2}}%

endlinechar`@ %

catcode`%=0 sbox0{input{test.xbb}}}%





Pages: ZZPages

end{document}






share|improve this answer














share|improve this answer



share|improve this answer








edited 3 hours ago

























answered 3 hours ago









David CarlisleDavid Carlisle

483k4011171858




483k4011171858












  • Oh my, you are the greatest! Thank you!
    – AlexG
    3 hours ago










  • Would you please explain why input must be placed into an sbox? To prevent any typeset output?
    – AlexG
    3 hours ago










  • @AlexG try without:-) yes as you say it throws away any accidental typeset result, in fact you get a typeset @ from the final newline, which could be avoided in other ways but....
    – David Carlisle
    3 hours ago










  • Ok. Very smart! And what about the double percent sign in the input? I can see only one % in def%...
    – AlexG
    3 hours ago












  • @AlexG if % has catcode 0 (escape character ) then %% references the same command as % the command with name % just as \ references the command with name
    – David Carlisle
    3 hours ago


















  • Oh my, you are the greatest! Thank you!
    – AlexG
    3 hours ago










  • Would you please explain why input must be placed into an sbox? To prevent any typeset output?
    – AlexG
    3 hours ago










  • @AlexG try without:-) yes as you say it throws away any accidental typeset result, in fact you get a typeset @ from the final newline, which could be avoided in other ways but....
    – David Carlisle
    3 hours ago










  • Ok. Very smart! And what about the double percent sign in the input? I can see only one % in def%...
    – AlexG
    3 hours ago












  • @AlexG if % has catcode 0 (escape character ) then %% references the same command as % the command with name % just as \ references the command with name
    – David Carlisle
    3 hours ago
















Oh my, you are the greatest! Thank you!
– AlexG
3 hours ago




Oh my, you are the greatest! Thank you!
– AlexG
3 hours ago












Would you please explain why input must be placed into an sbox? To prevent any typeset output?
– AlexG
3 hours ago




Would you please explain why input must be placed into an sbox? To prevent any typeset output?
– AlexG
3 hours ago












@AlexG try without:-) yes as you say it throws away any accidental typeset result, in fact you get a typeset @ from the final newline, which could be avoided in other ways but....
– David Carlisle
3 hours ago




@AlexG try without:-) yes as you say it throws away any accidental typeset result, in fact you get a typeset @ from the final newline, which could be avoided in other ways but....
– David Carlisle
3 hours ago












Ok. Very smart! And what about the double percent sign in the input? I can see only one % in def%...
– AlexG
3 hours ago






Ok. Very smart! And what about the double percent sign in the input? I can see only one % in def%...
– AlexG
3 hours ago














@AlexG if % has catcode 0 (escape character ) then %% references the same command as % the command with name % just as \ references the command with name
– David Carlisle
3 hours ago




@AlexG if % has catcode 0 (escape character ) then %% references the same command as % the command with name % just as \ references the command with name
– David Carlisle
3 hours ago


















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