CVS log for loncom/interface/printout.pl

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- Bug 6880
- Reduce amount of vertical space at top of each page for RHEL/Oracle/CentOS
  7 or later.
- Twelve combinations of orientation (portrait or landscape), columns (1 or 2),
  paper (letter, legal or a4) now supported.
- Use pstops instead of psnup for 2-column landscape for newer psnup version 2
  which does not support scale arg (RHEL/Oracle/Alma/Rocky/CentOS-Stream 9).

- Bug 6819

- Bug 5919

- Bug 5919

- Make top margin consistent for papertype of letter when printing portrait
  format on papertype of letter on RHEL7, RHEL8 and RHEL9 etc.
 - Discontinue practice of setting papertype to a4 when letter was selected.
 - Modify topmargin for two column pages for papertype of letter to keep
   top margin consistent with what it was before (for RHEL7 and older).

- Bug 5899 "printing a pdf file in a course via the printing option"
  Support GhostScript 9.50 and newer (in which SAFER mode is enabled by
  default).

- Typo

- Bug 5899 "printing a pdf file in a course via the printing option"
  Support GhostScript 9.50 and newer (in which SAFER mode is enabled by
  default.

- Bug 5899 "printing a pdf file in a course via the printing option"
  - Use -sDEVICE=ps2write arg in call to gs for ghostscript 9.09 or newer.
  - Fix binding operator in call to check if included files contain a pdf.

- As system() calls for pdftops and convert both now use list processing mode,
  spaces in filename for $not_eps no longer need escaping.

- "Change Printing Options" link when printing a "Composite Page" in a course
  references URL of page (without symb).

- Replace use of system("zip -r ...") with use of Archive::Zip.
  LONCAPA-prerequisites will need perl-Archive-Zip to be added.

- Untaint system() calls by forcing list processing mode.

- Escape value of URLback before storing in %env.
- &unescape() was moved from lonnet.pm to LONCAPA.pm in 2006.

- Remove space before papertype added in rev. 1.162 to avoid error with
  pstops.

- Explicitly set default papertype for "letter" format.

in the last printing page, added a link back to the resource when not authoring, and a link to change options

- Remove trailing white space.

Fix wording typos

- Fix typo in documentation.

- For 2.10
  - Backport 1.154, 1.157

- Names of course personnel need spaces between first name and last name
  replacing with underscore and/or removing when used in name range.
  (Name range is used as part of filename for .tex and .log files).
  - Avoids printout.pl terminating when attempting to write to log file(s)
    when generating printouts for non-students, if single assignment per PDF
    or specified number of assignments per PDF.

- occurred not occured.

Exclude HTML tags from translation phrases.
Update corresponding German translation file phrases and translations.

- Standard LON-CAPA separator between username and domain is : not @.

Download Links:
- Improved and consistent wording and layout
- Internationalization

changed <h1> to <p class='LC_error/warning/info'> where a headline is misplaced

Bug 6455 - Progress Indicator now jQuery. Still need to test across browsers.

Bug #1320: printing from construction space (except sequences - unclear how that worked)

Only run the gs postscript cleanup if some PDF's were included in the
printout.  Purpose of this is to improve printout quality when PDF's
are not included.

BZ 6307 - use gs instead of fixps...see if the output quality is any better.

- Backport 1.147.

Depending on the version of  convert  the tool might exit with an error (e.g.
segmentation fault) when trying to convert certain image files.  This change is
supposed to capture these errors and print a suitable message to the user.
Usually saving the image with different settings (or a different program) is
enough to avoid the segfaults.

- Exclude fixps from 2.9.
- Correct 1.142.6.3 (backport of 1.146).

- Bug 6307. Exclude fixps for 2.10.

- Backport 1.146.

Correct handling of fixps so that embedded pdf jobs print correctly.

- Backport 1.145.

- Backport 1.145.

- Can't return outside a subroutine.

- Backport 1.144.

- Bug 6029.
- Run fixps to sanitize postscript on both 1 col and 2 col output,
  before running psnup or pstops.

Added breadcrumbs to "Preparing Printout" page and "Download PDF" page

Added error style to error messages

See bz 5899
- If a file in the convert queue is pdf, convert using pdftops
- Use fixps to ensure that the ps has no errors when including
  converted pdfs.

Insert header to support inclusion of PDF converted to ps.

Add code to include the header that supports including full postscript jobs.

Consistent wording "TeX"

- Fix link to LaTeX logfile.

- Added several missing &mt() calls
- Only print error source, if source exists (-> $badtext)
- Optimized screen layout for error output

Factored the analysis of the logfile out of the main-line of printing.
This drops out a ton of duplicate code that had been in the mainline.
Appears to still work too!

- Interal refactoring of convert_image's final filename generation.
- Simplification of path generation so it's easier to understand
 (replace a regsub with call to dirname).

Factored figure conversion into separate sub to make the main line a bit easier to read.
  I think it even still works.

Bug #5643: not erroneously timing out during printouts

Bug #5643 - maybe. If what we want to detect are INFINITE loops, maybe we
can wait five minutes instead of 10 seconds. Given that a normal exam printing
run for me takes about 50 minutes, I think five minutes are okay.

BZ 5648???
  1. Increased the timeout to 20 seconds (factored that out into
     $busy_wait_timeout at the top of the file.
  2. Output a warning message if the timeout triggered.

Suggest seeing if this output occurs on the exams in question in that bug.

BZ5548 - Timeout latex jobs that don't make dvi file grow after 10 seconds.

- BUG#5397, eliminate the extra 'Return to last resource' link in prt mode
  (and enable the standard 'return to resource link') preserver the
  extra return link for use soley in construction space and update the text
  to say this

- make the re match only the types of %%Page: comments we are looking for

- typo

The changes around 1.122 which use the print spool directory from
perlvar inadvertently dropped a / in the directory specify causing
images to be generated in the wrong directory (e.g.
instead of /home/prtspool/msu... /home/prtspoolmsu .. added back the
appropriate path seperators.

- missing argument to crete_missing_fonts BUG#5242

- style

- making error messages get sent again for print failures (BUG#2231)
  - moving decide_receivers to lonmsg for easier inclusion/use by
    cgi scripts

- fixing regexp to support usernames/domain with . and -

- BUG#5153 minpage references were screwing up page counting
- some style
- add in version header

Re-fix typo on first unlink of missfonts.log and move the unlinks
around so that the  missfonts.log file is removed even after latex
regenerates them becuse it's looking for an exact match (while
dvisp will accept a font match with different resolution).

- Eliminte uneeded use of IO::File
- add in missin /
- run each font creation command only once

Fix a mostly harmless typo in an unlink... had extra trash in it.

- commenting out some debug messages

If font generation at pdf resolution fails... generate at ljfour
resolution instead and re-dvips.  Still need to remove some debugging
output, but this is for bug 5089 and related.
NOTE:  Multiple simulataneous print jobs may yet fail.
      As all will write to the same missfonts.log file.
      this could be an issue I think even if dvips was just run
      to regen the fonts as there's skew in when the missfonts.log
      file is deleted.
Conclusions:  This is probably no worse than before and may be better.

- style
-remove some debug

Correct destination directory for eps copies.

Handle files in conversion queue with .eps or .ps extensions by copying
them with ' ' mapped to _ so that printing them won't fail.

Part of bz 4265 - if the image conversion queue file has ps or eps images
in it, just convert any spaces in their names to _'s and copy to the
spool directory for the latex inclusion..

- BUG#5017, extra page at end of printing when priting multiple users

Remove some left over log spew.

- BUG#4950 the ENDOFSTUDENTSTAMP was being placed not at the actual
  end of a student but at the begining of the next student this could cause
  oddities when  you had exactly the right number of columns sepicified
- additionaly the final student was getting blank columns inserted
- switch to using \clearpage\strut\clearpage to cause the blank columns
  like lonprintout.pm does

- removing debugging spew BUG#4875

Use \strut instead of "this page intentionally left blank"

1. Only do the necessary latex's during repagination (not sure.. may be able
   to remove the makeindex prior to repag.).
2. ensure that \pagebreak really does make a 'blank' page by adding the text
   'this page left intentionally blank'.  Otherwise seems like latex would
   glom multiple \pagebreaks together if the page was blank??

Add progress window info for repagniation.. in case it gets to be
time consuming.

\pagebreak is more reliable at breaking pages than \newpage

Better try at getting constant page count /student.

- some style fixes

I think this repaginates correctly but need to test further and
certainly need to get a status display up while it's doing it.
It certainly appears to do no harm in any event.

strip the STARTOFSTUDENT/ENDOFSTUDENT stamps from the initial postscript
This is an intermediate development stage of request 4786... later
this will be extended to count the pages between each of these stamps
and subsequently ensure that the output for all student assignments in
a single printout will be the same number of page/columns.

- backport 1.98

- some versions of image magick mishandle converting animated gifs,
- later version of image magick have changed to file name that is generated as a result of the conversion process

- start_page in printout.pl

- removving use of Apache2::compat that never really worked

Add one more LaTeX run if contents are being generated.

- some small look and feel improvements to the print results screen

- safely try to pull in the compat enviironment where needed

- BUG#4321, stop checnking request.role.adv for wheterh advanced printing can be done, 2 new privledges 'pfo' Print for otheres, and 'pav' advanced printing options (i.e with answers etc.)

splitting up the resources list into multiple lines

Add help links for print failures.

Make some name splitting a bit more efficient and clearer.

Addressing Bug 4047:
Give a bit more indication what's going on in both status and download
when multiple files are created.  There are two cases that are handled
more or less ok:
- Multiple selected students:  The files are now created in the
  form (oldfilename_serialfirst-last.*  where first and last are
  the last names of the first and last students in the range.
  The download links for the  individual files show the name range as
  before.
- Multiple anonymous students:  This had given only @ on the status line
  and for each of the download links. Now we present the name of the .tex
  file (not dir path, just name.tex) in the status window and for the
  individual download links as well.

Remove a left over debugging statement.

bug 4047 - get filenames uniquified by a serial number for now (first
suggestion).

Defect 4246 - retain information about the converted file's initial
filetype in case a single job requires e.g. file.jpg and file.gif to
be converted.

- <br> should be <br />

Defect 4044 - don't tell the student there's a LaTeX error and innundate
them with error diagnostics they can't do anything about.`

- send the paper type to psnup so it gets it more righter

Use the correct mechanism to deteRmine recipeints on error
emails - set the subject such that resources will be labelled with
bombs in the displayed course map.

- sorry screwed up the namespaceing of $env

- changing printout.pl to look for the same vars as lonprintout.pm exports

- xhtml

Add messaging to course coordinators in the event LaTeX failed.
The student is also informed that the messages was sent.

- ENV -> env

- correct the speeling of some vars
- BUG#4026, in some cases you would end up with no links to the log/tex files

Defect 3058: modify destination path of image conversions so that spaces get
            >replaced< with _ since spaces in paths drives system and
            LaTeX nuts.

Add a bit more debugging (commented out).

- BUG#3888, the a 64bit machine was excberating some kind of issue in Image::Magick workign around it

- splunking

- using <pre> on the Latex error messages since, well they are

- backport 1.68

Added more verbose logging to die messages.

Bug 3341 (Link to pdf unclear for new users.) is mainly fixed. I still consider the possibility to use picture as a link (I'm looking for something reasonable)

Started to do some cleanup according to your (Guy) remarks. Any critical notes would be welcomed.

"lender/tabloid" is supported for two column output in 'book' layout.

"Legal" format of  paper is fully supported now.

Support for other paper format.

3266 - All Guy's critical notes were taken into account.

Bug 3266 (A4 printing fails to work properly) is fixed. Continue to work on other formats.

- last of BUG#3222, moved around order of elements and remove the 'Generated' text

- diasble progress windows for students

- BUG#3222, we now busy wait on the system conversion steps, and output number of bytes
  thus not having things time out.

Used lonDocRoot and lonUserDir instead of /home/httpd/(html|lonUsers) everywhere where possibl everywhere where possible,e,

$Apache::lonnet::perlvar{'lonUsersDir'} used instead of /home/httpd/lonUsers.

Changes to create and print eps counterpart for figure uploaded in the simple page.

BUG#2956

Adding missing ">", had leaking link

- I just like these some much better in-lined

- when doing the backport this line ended up in the wrong location

- backport 1.41

- remove image .dat file when done converting images

- &mt() would return an array into scalar context, needs to return a scalar in those cases
- printout.pl now has the headers, and set charset properly
- lonlocal works in a CGI context (but of course it will be slower since the language handle isn't persitent)
- loncommon::content_type works in a CGI context

- CSTR back links didn't include the /priv

- generally cleaning the printout screens up

- lonprintout.pm
    - printout files have shorter unique names
    - printout files when doing multiple  students are all sequentially numbered
    - cgi ids use loncommon's get_cgi_id

- printout.pl
    - only request.role.adv users get popup status windows
    - turn on autoflush
    - only update the conversion popup if actually converting
    - use a pretty version of the image name when updating the progress window
    - use updated counting system for multiple output files
    - Updated the English on the various status outputs to read better (probably need more help still)
    - <pre> the zip output

- yeah I probably should have made some of these seperate commits

- if the uses doesn't have a name, use the login name

Changes: 1. Status window from lonhtmlcommon.pm is used now;
         2. Link to original resource (starting point for printing) is added.
The last change can be temporary until I'll find and implement more reasonable mechanism.

- backport 1.46

- fixes the effects of BUG#2538, once we have gotten what we want out of the session ENV, throw it away, then the system() calls are fine

Added link to zip file.

Changes to implement status windows for 1. Figures conversion; 2. PDF production. The first step - any critical notes are welcomed.

Changes to print students assignments by sections (parts) - the first step.

- when priting multiple students the same image file might be listed many times
  lets just do the conversion once

Bug 2521 (The eps conversion in construction space does not appear to work) is fixed. See londefdef.pm too.

Some cleanup has been done to use cookie mechanism.

Cookie mechanism is implemented. Working on cleanup.

Bug 2287 (automatic eps generation needs to preserves paths) is partly corrected - it's done for static images. Further neccessary steps are 1) implement the same for randomlabel. problems; 2) implement additional parameter to do previous item for a few students at the same time; 3) make a test for a few more situations.

- missing GPL header added

Log and Tex files are available only for advanced users.

You have links to log and original LaTeX files even in the case of nonbatch mode processing. I'll do some clening of this script a little bit later (continue toplay with it for some particular cases).

Bug 2076 (which is not a bug but rather enhancement) is partly fixed: in the batch mode I added a link to original LaTeX source file (michael hamlin wanted to have this). Continue to work with the case of plane LaTeX processing (without batch mode).

Index section isprintable for the separate resource.

Changes to produce a table of contents for different situations.

Cosmetic change to look better on the screen.

Added possibility to see the content of log file if there were corrections done by LaTeX.

Error diagnostic for batch mode is implemented. Needs some additional work.

Oops.

Rewinding changes on window registration.
Attempting to overcome JavaScript security by using POST to change window
location.

Part of Bug #1562: typo, did not call "stale" routine correctly.

Bug #1519: printout pages register with Remote

Bug 1088 (dvips and metafont should not write their output to /etc/httpd/logs/error_log) is fixed.

- making pdf files look good on screen

Exact (or more correctly almost exact) "pointer" to the problem where LaTeX error was occured is shows up on the screen. Added one more LaTeX error indication (one of the most frequent errors).

Small changr - output looks better on the paper.

Creates eps figure from a set of gif images - need for moving
objects.

- need to make sure output is size letter

Prints in two columns in portrait environment.

Changed the way used to determine either we have errors in the log file after
proceccing tex file by latex.

Fix silly mistake.

- better english

The first very brief attempt to include LaTeX error messages.

Changed a little bit - remove unlink which was transfered to londefdef.pm.

Removed my own tast print.

Can use composite names for graphical files (with more than one .).

Corrections for cleanup.

Added cleanup (remove) temporary file with due dates.

modification of the file name for eps pictures

produces eps dynamically in a correct way

added eps production mechanism

very very first attempt to work with eps production - experiment

added some functionality

- removed absolute bistromath references

added two-pages option

cgi script version one