[NTG-pdftex] \pdffiledump

Hans Hagen pragma at wxs.nl
Mon Jul 4 16:51:03 CEST 2005


Heiko Oberdiek wrote:

> 400K files don't need to be read as a whole. An intelligent
> implementation would parse the necessary parts. With the
> information of \pdffilesize files can also read from behind
> and parse pdf or dvi files, for example. But it is easy to
> add another option for the read direction for parameter "whence"
> of fseek (SEEK_SET, SEEK_CUR, SEEK_END).

that's indeed the point i wanted to make: that kind of parsing only makes sense 
if one can also seek; better make a full implementation now then wait for new 
features later.

> Currently the file is not remembered, thus "current" has no meaning.
> Keyword "offset" can be given an option "end":
> 
> \pdffiledump [offset [end] <int>] [length <int>] <general text>
> 
> "offset 10 length 2" means byte 10 and 11,
> "offset end 10 length 2" means byte 10 and 11 before end of file.

ah, i see, interesting

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------



More information about the ntg-pdftex mailing list