CVS log for loncom/interface/lonprintout.pm

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- Change in args that can be passed to navmap->new(). Third arg is now
  user's section. Supports case where a navmap object is instantiated for a
  specific user (who may be in a different section).

- For 2.11
  For two column printouts vertically align page number on right side of
  even-numbered columns with page number for odd-numbered columns.

- For 2.11
  Backport 1.688 (part), 1.689 (part), 1.696, 1.697, 1.698, 1.699,
           1.700 (part), 1.701, 1.702, 1.703, 1.704.

- Fix typo in page height for letter-sized paper, and modify top margin for
  accordingly.

- Ensure correct name/section in header on last page when printing for other
  people on RHEL/Oracle/Alma/Rocky/CentOS-Stream 9 for 1-column or landscape
  2 -column and a4 paper.

- Small changes to default page format settings so twelve combinations of
  orientation (portrait or landscape), columns (1 or 2), paper (letter,
  legal or a4) are supported by range of distros/versions.

- 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).

- Restore page number to right side of header line after changes in 1.537.
- For two column printouts add column number to right side of header line
  for even-numbered columns, unless course uses customized header.
- Remove default fancyfooter found below the bottom of the page/column.

- Remove trailing whitespace and some blank lines.

- Bug 6819

- Bug 5968

- Reverse changes in rev. 1.695 to use the original values for topmargin for
  2-column printing as they work well for Ubuntu and CentOS 7 (and earlier).

- For 2.11
  Backport 1.695

- 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).

- For 2.11
  Backport 1.636, 1.676, 1,677, 1.678 (part)

- For 2.11
  Include just five changes from the many changes in rev. 1.679

- For 2.11
  Backport 1.690

- For 2.11
  Backport 1.687

- For 2.11.4 (modified)
  Include changes in rev. 1.688, 1.689, 1.690, 1.691, 1.692

- Printout generation via print icon in "Tools" on Course Contents page.
  Pass folder selected for printing to subsequent helper screens when
  printing resources for selected students or CODEs.

- Concatenator not needed.

- Printout generation via print icon in "Tools" on Course Contents page.
  For these two items available to privileged users:
  (a) Selected Resources from selected folder in course for selected people
  (b) Selected Resources from selected folder in course for CODEd assignments
  need to pass URL of sequence being printed to &master_seq_to_person_seq()
  otherwise response is: "There are no unhidden resources to print".

- Printout generation via print icon in "Tools" on Course Contents page.
  For these two items available to privileged users:
  (a) Selected Resources from selected folder in course for selected people
  (b) Selected Resources from selected folder in course for CODEd assignments
  include resources that are *not* problems in table of selectable resources.

- 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.

- Fix typos and remove extra whitespace.  Not code changes.

- Fix typos in comments.  No code changes.

- For 2.11.4 (modified)
  Include changes in rev. 1.687

- Bug 6974

- For 2.11.4 (modified)
  Typo in 1.627.2.32.2.1 addition of changes in 1.676

- For 2.11.4 (modified)
  Include changes in 1.679, 1.680, 1.681, 1.682

- For 2.11.4 (modified)
  Include changes in 1.686

- Remove extra whitespace

- For 2.11.4 (modified)
  Include changes in 1.684, 1.685

- $helper->{VARS}->{'symb'} does not apply when printing from Authoring Space
  Remove some duplicate lines of code.
- When displaying list of selectable resources to include in a PDF printout,
  exclude any "Table of Contents" (i.e., /adm/navmaps) items.

- When displaying list of selectable resources to include in a PDF printout,
  exclude any "Table of Contents" (i.e., /adm/navmaps) items.

- For 2.11.4 (modified)
  Include changes in 1.676, 1.677, 1.678, 1.683

- Replace use of &mtn() with &mt() and use bracket notation for HTML tags.
- Correction to one transaltion (localized phrase was Problems not Resources).

- When displaying list of selectable resources to include in a PDF printout,
  exclude any "Table of Contents" (i.e., /adm/navmaps) items themselves.

- Eliminate duplicate printing option when printing from Course Contents page.

- Typo

- Include printout icon in "Tools" above listing of course contents unless
  course is empty. Options include:
  - Print items not in a folder (if any exist)
  - Print items in a selected folder
  Privileged users can also print selected folder for selected users or CODEs.
- When displaying list of resources to select exclude any /adm/navmaps items
  themselves.

- Ignore empty and commented out rows in bubblesheet format file.

- Always remove line feeds from lines returned by get_scantronformat_file()
  so chomp() no longer needs to be included when using the output.

- Bug 4500
  The value set for "Allow problems to be split over pages" can now be
  accessed within the &encapsulate_minipage() routine.

- For 2.11
  Backport 1.675

- Bug 6967.
  Support randompick and/or randomorder set for sub-folders when printing
  problems or resources for CODEd assignments in a specified folder.

- For 2.11
  Backport 1.673, 1.674

- Bug 6955 IP-based blocking. Pass user'sIP address as third arg to
  loncommon::blockcheck() and second to loncommon::blocking_status().

- Bug 6914
  Update domain config UI to support settings documented in
  Domain_Configuration_WAF_Proxy.tex

- For 2.11
  Backport 1.670, 1.671, 1.672

- URL for external resources in uploaded .page ("Composite page") changed
  to begin /ext/ (but are not wrapped).
- Printouts of external resources include title of item in course, and link
  unless encrypturl is set to yes for the resource.

- Accommodate Apache 2.4 updated to address CVE-2019-0220.
  Reverse piecemeal changes (lonwrapper.pm 1.72 & lonprintout.pm 1.670)
  with generalized solution using PerlTransHandler.

- Accommodate Apache 2.4 updated to address CVE-2019-0220, in which
  multiple consecutive slashes are collapsed into a single slash.
- Eliminate TeX error when printing External Resource which includes an
  anchor in the URL.

- For 2.11
  Backport 1.668

- For 2.11
  Backport 1.666

- For 2.11
  Backport 1.669.

- Unwanted comma in <dropdown> tag causes invalid select element in SLES15.
- Balance braces when font size is empty string.

- For 2.11
  Backport 1.664, 1.665, 1.667

- For 2.11.2 (modified)
  Include changes in 1.663, 1.664, 1.665, 1.667, 1.668.

- &get_scantronformat_file() and &get_scantron_config() moved from grades.pm
  to lonnet.pm

- Only call lonenc::check_encrypt() if there's something to encrypt.

- Bug 6806 Use of an External Resource URL which includes an anchor will
  cause page to be load in iframe at anchor position.
- For servers using Apache/SSL where External Resource points at http:// URL
  query string for links contains usehttp=1, unless Strict-Transport-Security
  set for Apache with max-age > 0.

- Remove trailing whitespace.

- Handle case where /adm/printout is called outside context of a resource.

- For 2.11
  Backport 1.663

- Prevent ISE in first print helper screen when checking printability of
  current resource if no resource object.

- For 2.11
  Backport 1.661

- For 2.11
  Backport 1.662.

- Eliminate "Unescaped left brace in regex" errors in perl 5.26.

- For 2.11
  Backport 1.659

- Bug 6791. Links launched as modal pop-ups for resources listing in
  "Select Resource(s)" to print UI.

- Bug 6754 LON-CAPA as LTI Consumer: External Tools in printouts.
  - Show name of tool instance in course (with points earned,
    if gradable and status is SHOW_ANSWER).

- Use three-argument open() to separate file mode from the filename.

- For 2.11
  - Backport 1.658

- Extra parentheses needed for inline use of ternary operator.

- For 2.11
  - Backport 1.653, 1.654, 1.655, 1.656, 1.657.

- Typo.

- Remove duplicate line.

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

- Typo.

- Don't bleed unencrypted URL in links to return to resource and change
  printing options in course context (added in rev. 1.648).

- For 2.11
  - Backport 1.651, 1.652

- Bug 6840

- Bug 6840

- For 2.11
  - Backport 1.650

- Eliminate "Unescaped left brace in regex is deprecated," warnings
  in error_log with perl 5.22 (Ubuntu 16 LTS).

- For 2.11
  - Backport 1.649

- Eliminate "Unescaped left brace in regex is deprecated," warnings
  in error_log with perl 5.22 (Ubuntu 16 LTS).

- For 2.11
  - Backport 1.648

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

- For 2.11
  - Backport 1.646, 1.647

- &master_seq_to_person_seq() is called by grades::users_order(), so
  %perm is empty in that case, so caller of the routine needs to check privs
  if passing $nohidemap arg.

- &master_seq_to_person_seq() routine
  - Fix typos in comments.
  - Document fifth arg added in rev. 1.631.

- For 2.11
  Backport 1.644, 1.645

- Remove leading and trailing white space from name used to save CODEs.

- Removed unused scalar (added in rev 1.416).

- For 2.11
  -Backport 1.643

- Message displayed in printout when there were no resources to print
  better tailored to printing context.

- For 2.11
  - Backport 1.642

- Modify changes to rev. 1.619 (for bug 6499).
  - Generalize more specific cchanges made in rev. 1.639 and rev. 1.640.
  - Explictly insert header line, so new CODE or Name is shown on first page
    each student's assignment.

Fix wording typos

- For 2.11
  - Backport 1.640.

- Modify changes to rev. 1.619 (for bug 6499).  If printing only a single resource
  (which could occupy more than one page), explictly insert header line, so new
  CODE or Name is shown on first page of each student's assignment.

- For 2.11
  - Backport 1.639

- Modify changes to rev. 1.619 (for bug 6499).  If the first resource in folder
  being printed is an HTML cover sheet, explictly insert header line, so new
  CODE or Name is shown on first page of each student's assignment.

- For 2.11
  - Backport 1.637, 1.638

- Bug 3462
  - Use lonlocal::locallocaltime() for display of dates/times
  - Consistency with lonnavmaps::printable()
    - Start of window for printability might be determined by opendate
      and/or contentopen, if printstartdate not set.
  - Message displayed to students in case resource is not printable
    depends on nature of limits.

- Fix typo introduced in rev 1.615 (possibly an artifact of debugging).

- For 2.11
  - Backport 1.636

- https://-type URLs for external resources shown correctly in printouts.

Ignore empty rows and rows which are commented out in bubblesheet format file.
Consistent row handling like in bubblesheet grading selection, introduced in grades.pm 1.518 (bug #5650)

- For 2.11
  - Backport 1.632, 1.634, 1.635

Corrected wording typos
Updated related phrases in German translation file

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

- For 2.11
  - Backport 1.633.

- Replace terms: "Construction Space" with "Authoring Space"
  and: "Construction space" with "Authoring space"
  for consistency with type of role used to access it, and action taken there.

- Printing Problems from folder for CODEd assignments:
  - If randompick parameter set for folder, seed used for selection of
    resources is set in lonnet::rndseed() based on CODE.
- Bubblesheet grading CODEd exams -- randompick for folder being graded
    now supported.
  - If randompick parameter set, seed used for selection of resources is
    set in lonnet::rndseed() based on CODE.

- Work in progress.

- For 2.11
  - Backport 1.631.

- When users with pav and vgr priv (e.g., Course Coordinators)  print a
  folder of resources for anonymous CODE(s) or for named student(s), e.g.,
  for a bubblesheet exam, parameter in map for hiddenresource will be
  ignored when retrieving resources for folder in random order.
- Supports use case where CC sets hidden for exam folder while printing
  bubblesheet exam, and also while grading exam.

- For 2.11
  - Backport 1.630.

- rev. 1.627: Improved internationalization (flexibility of different parameter order)
- rev. 1.615: Standard style

- For 2.11
  - Backport 1.629.

- Eliminate malformed prototype.

- For 2.11
  PDFForms not advertised in 2.11.
  (same changes as in 1.568.2.2 for 2.9 and 1.583.2.2 for 2.10).

- For 2.11
  - Reverse changes from 1.537, 1.538, 1.565.
  - This is the same change as 1.568.2.4 for 2.9.X, and 1.583.2.1 for 2.10.X

"Exam" in general or LON-CAPA's "Bubblesheet Exam"? Improved wording to clarify and less confusion.

- Localization: HTML mark-up in &mt().

- Printing Problems/Resources from folder for CODEd assignments.
- Change in first arg passed to &master_seq_to_person_seq().
  - Arg is now URL of folder, instead of $helper object (which had been
    used to retrieve the symb, which was unused).
- Set start and finish for iterator to first and last items in map
- During iteration test if current item is a reference in place of
  checking if item is key in %nonResourceItems hash.

- Printing Problems/Resources from folder for CODEd assignments:
  - If randomorder parameter set for folder, seed used for ordering of
    resources is set in lonnet::rndseed() based on CODE.

- Support use of external resources in uploaded .page ("Composite page")
  via iframes.

- Correct URL shown for external resources starting https://

Remove debug logging.

BZ6607 - typo filtered out problems from the list of problems :-(

- For perl 5.16 use of deprecated defined(@array) generates warnings.
  - eliminate use.

BZ 6499 - In printouts that may span sequendes ensure the assignment changes
as the sequence/map changes.

BZ6202 - Sorted without an assumption about how the students are orderd when
gotten from the course (there was an implicit assumption of section/stud
sorting).

Remove log spew.

BZ 3462 - Alter choices presented to students if folders or the course itself
are not printable.

BZ3462 Inidicate why it's not possible to print the current resource

- Bug 3462.
  - Blocking of printout generation added to available exam blocks for
    a course.
  - Course personnel (with evb priv) will be unaffected unless currently
    using a student role (e.g., an ad hoc role).

Localize "Name: " used in the paper version

Merge language_hyphenation into trunk.

bz6490 - Support the collection of language selection -> latex/babel language
names in loncommon.pm.
- collect \selectlanguage{babel-names} and produce, if necessary a
  \usepackage[language-list]{babel} prior to \begin{document}

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

BZ 6454 - Handle random selection and random ordering for print for
          selected users.

Trying to get rid of some of the copy/paste regular expressions.

- use values from Apache::lonnet::perlvar in place of static strings.

Fix "Return to editing" link

Bug #6525 Printing of sequences in Construction Space

Cleanup

Cleanup

Cleanup

Bug #6527 - actually detect that we are in construction space

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

BZ 6454 - make randompick work... randomly order still to go.

- Consistent wording.

- Backport 1.586, 1.587, 1.597, 1.598.

- &generate_format_selector().
  - Change args: eliminate previous third arg (nextstate) - not needed.
  - Rename final arg as this_state for consistency with usage elsewhere
  - All three args now required.
  - Add documentation

- Eliminate '<nextstate>NUMBER_PER_PDF</nextstate>'.
  - NUMBER_PER_PDF was eliminated as a state in rev 1.435.
  - this <nextstate> tag was being ignored, as another
    <nextstate> tag occurs later within the <state></state> block.

- Eliminate unused code from rev 1.586.
  - &generate_format_selector() includes the same code, and is in active use.

- Additional (eighteenth field) BubblesPerRow in Bubblesheet Format file.
  - specify bubbles available for each question row (default is 10).
- Support case where question (or subquestion for optionresponse,
    matchresponse, or rankresponse) requires more bubbles than in one line.
  - Students prompted to bubble once in multiple lines.
  - Numbering recognizes multiple lines per question.
  - Also supports: imageresponse, stringresponse, formularesponse where
    students leave link(s) blank if weight assigned is greater than
    bubbles per line -- multiple lines also supported in this case.

For example:
- 15-bubble MSU Art History exams now supported on standard 10-bubble
    bubblesheets used at MSU.

BZ 6454 - first shot at handling randompick though I don't see the random
order working yet.

Make the incomplete selection stand out more in the first page of helper.

Finish testing/making work multiple student cases.

BZ5209: Get empty student followed by non-empty student print to work for
cc print of incomplete problems.

BZ5209 - Probably mostly works... needs more testing with
diverse cases.

BZ 5209:
  - Get incomplete problem printing working from student role.
  - Fix a misunderstanding on my part about the role of the resource chooser's
    value function.

3462 - Add more print selectivity:
      * If the user has appropriate perms they can always print regardless
        of print open/close dates.
      * If the current resource is not printable show no radio button.

NOTE:  This is not yet useable.  There is evidently still some detritus from not yet completing code for BZ5209  .. do not promote this to production.

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.

Kill off div by zero problem for CODE prints with PDF's by section.

- Bug 6167.
  - Don't offer "Each PDF contains exactly one section" option when creating
    printout for CODEs to avoid ISE.
  - New routine: &generate_format_selector() used to create print options
    for EMPTY_PAGES and SPLIT_PDFS selectors, and eliminate duplicate XML.

- Customization for GCI_3.
  - Missing closing brace.

- Customization for GCI_3.
  - Suport for multiple Concept Inventories.

- Backport 1.585.

- Backport 1.584.

- Backport 1.585.

- Bug 4321.
  - Include vgr privilege checking for roles with sections.

- Backport 1.584.

- xhtml -- action in <form> tag for helpform
- HTML markup for recent printouts need to be within body of HTML
  for valid xhtml, and to avoid case where browse displays blank page.

- PDFForms not advertised in 2.10. (same changes as in 1.568.2.2 for 2.9).

-  For 2.10, reverse changes from 1.537, 1.538, 1.565.
 - We need to revisit bug 5446
 - This is the same change as 1.568.2.4 for 2.9.X

- Backport 1.583.

- Bugs 6300 and 6301.

- Backport 1.582.

- Fix some issues with headers in TeX which caused begin{document} to be missing in some cases:
  (a) generating printouts with answers only
  (b) printing .page

- Fix some issue which caused HTML to be included in .tex files for resources within
  a page. For now change target to "tex_answer" in lonpage.pm,
  if $env{'form.answer_output_mode'} is 'tex' and $env{'form.grade_target'} is 'answer'
  - answers for all resources in page appear after rendering of individual
    resources in .page, when print type is "with answers" for a .page.

- Eliminate some cases where printing would fail.

Optimized status bar localization:
Overhauled status text creation to allow proper translation.
    - Translate whole sentence instead of unhandy phrase fragments concatenation.
    - Simplified way of time text creation by using quant.
    - Removed code for not anymore supported old browsers (bug 1382).
    - Indirectly corrects mt() call with incorrect parameter (_2 -> _1)

- Backport 1.580.

- Eliminate duplicate headers when printing sequence containing more than one PDF to avoid LaTeX errors when geenerating dvi file.

Add noproceed='1' to first string in code chooser so validation won't make that bounde ot the next state even if the validator for another string
fails.

BZ 4707
Fix up the validators for coded assignment strnigs to catch incompatible cases
between number of coded assignments and single coded assignment section.

BZ7407 -
1. Allow multiple strings in a single helper page with validators on all.
2. Fix up the validator for the second string in printing coded assignments so
   that is recognizes that a string there is not compatible with entries
   in the prior section of the helper page.

- Backport 1.576.

- Fix typo in 1.559.
- Fix typo in name of pdfFormFields form element.

- Backport 1.574, 1.575.

Building the helper states modularly.

Run through perl tidy to try to get some nicely formatted stuff.

Fix for BZ 6240... \special{papersize} sometimes gets printed sometimes causes
print errors and sometimes works.. Now I _think_ a4 paper printing works
for all cases.

- Bug 6245
  - For 2.9, reverse changes from 1.537, 1.538, 1.565.
  - We need to revisit bug 5446.

- Corrected dopple backslashes before "special" (correction of correction in 1.573, also see Bug #6240). That causes an LaTEX-error when printing "Selected Problems from folder ... for selected people" in paper type a4.

BZ 6240 - quote special characters in regexp generating papersize special

BZ 6240
Add quoting so that a4 papersize doesn't output crap like
specialpapersize=210mm,297mm  rather than

\special{papersize=210mm,297mm} as was intended.

- PDFForms not advertised in 2.9.

- Bug 6119 Anonymous Survey.

- Customization for GCI_3.
  - One-click generation of PDF of Concept Test questions
    (1 column, portrait, 8 .5 x 11 in paper, without answers).

- Backport 1.571.

- Backport 1.571.

When running the print helper for a problem contained in a folder and selecting
the option 'Selected Problems from Folder ... [selected people|CODEd assignments]'
the helper used to show all problems in the current course instead of just those
that are in the same folder.
This patch reverts to the previous (lonprintout.pm < 1.562) and anticipated behavior
of showing only those problems that are within the same folder.

Add settable units to \vskip (BZ 6109).

Memorize the previous extra vskip values.

Fix errors printing syllabus for other people..

Remove extra LaTeX header stuff from syllabus e.g.  Still issues
with printing syllabus in print resources for selected students.

BZ 6132 - Needed to only output headers once when printing from a sequence...
well really need to restructure so that
- Latex headers are output
- Type of printing is determined and done with no headers per resource.
Well needs much more than that to make lonprintou.pm comprehensible :-(

Truncate the finally formatted user described page header so that it fits
int three lines, BZ 5446

Fix last? slip up with .page printing.

Fix error in printing while browsing resource space .. was calling methods
on an undefined navmap.

Merge in branch that fixes BZ 2851

Removed debug logging.

BZ2851 - Make selected CODE problems from .page work correctly.

BZ 2851 - Got problems from page for selected students to work.  Now
          on to testing other print selectors.

BZ 2851 continued work...testing all of the print options after
- Centralizing some helper production
- Centralizing the print headers.

Localized various statistical printing texts
- Added &mt() calls
- Added missing phrases to de.pm, prepared phrases in zh.pm, updated phrases in es.pm
- Optimized some &mt() calls and adjusted corresponding translation file entries

- Consistent username:domain

- Backport only first change from several changes in rev 1.569.
 - get_annotation() was moved from admannotations.pm to loncommon.pm in September 2008.
 - "use Apache::admannotations" no longer needed.

- Remove logging from lonnavmaps.pm (don't need it anymore)
- Progress so far on page printing.
- Document issues to go in comments at top of the file.

- On the way to allowing print pages in courses to print pages
  for selected students.
- Factor out student chooser from the inline helper generating code so
  it can be re-used for the course/folder and page printing code.

BZ 2851  - Just saving work so far - can get the page to request which resource
or problmes to print.. can get the body right but need to work on getting
headers/trailers generated for the resulting LaTeX

Ensure that map_laystyle explicitly specifies &Apache::lonprintout when used by
subs in the lonprintout::page_size_state package...else printing can
fail dramatically.

This merger with head should resolve BZ 5969, 5970, 5732 5927 .. various
problems with printing pages, as well as some missing/not quite right entity
handling in the arrows.

Fix various isues with printing .page and printing only a .page.

First successes at getting .page to print in a course.

Progress on printing pages from a course.

Progress towards making .pages printable in a course.

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

Merge back to main branch.

BZ 5971 - Move page printing in constructionspace to sequence printing as they're really the same for all intents and purposes.

BZ 3871 - Allow global font-size selection.

Finalize version that can adjust latex font size globally for a printout.

- Removed   from translation phrases
- Consistent Wording

Start inserting support for settable font size setting.

Added error style to error messages

XHTML conform selected/checked/multiple HTML attributes
and optimized spacing

Get sequences in cstr space with pdf's to print correctly.

Straighten out some issues that resulted from factoring latex header.

see BZ5899
- Support for printing pdf's in folder prints.
- I think this works in other contexts as well, but more testing is
  needed.  It's certainly no worse that before.

- Backport 1.549.

- Starting with lonnet.pm rev 1.981, default for &lonnet::delenv() has been to \Q escape arg in regexp used to identify items in environment to delete.
  - No longer need to escape special characters in arg passed to lonnet::delenv().
- Call to lonnet::delenv() in rat/lonuserstate now includes second arg, because in this case first arg is to be treated as a regexp (so \Q escape is not wanted).

"Set Margins" page:
  - Same style as on first printout page: Replaced table by pick_box
  - Use standard name %lt for texthash
  - Use double quotes for HTML attributes

- Reverse changes in 1.537 for 2.8.X.
  - reopen bug 5446 and explore alternatives that do not add a third row.

- Backport 1.547.

- Check that navmap object could be created to avoid ISE when checking for folders with randomly ordered resources.
- Return warning message if navmap object unavailable.

- Eliminate changes made in 1.539.  PDF Forms not included in 2.8.

- Separated HTML formats from translations:
    Moved HTML tags from text to parameters and changed related German translations.
    More changes like this needed.
- Added some missing translations, e.g. for lonprintout.pm
- Optimized/corrected some translations

Finshed changes to use pick_box style for print options (part 2, -> lonprintout.pm 1.544)

Optimized first page of print options screen (Part 1):
- Use LON-CAPA pick box style for print options (Finished for authors. More to do for CCs, but still functional)
- Use LON-CAPA data table style for layout options
- Added/optimized headlines
- Recent printouts:
    - Separator line between options and list of recent printouts
    - Use proper table (data table) with separated columns for download, creation date and file size
- Added missing &mt() calls
- Added "&" to some sub routine calls

Backport 1.543.

- Bug 5802.
- A side effect of the addition of '\usepackage[T1]{fontenc}' in 1.531 has been the creation of Type 3 (bit map) fonts in the .ps file during printout generation.
  - With some distros (e.g., SuSE) this can prevent creation of the two column format by pstops.
  - It can also result in larger .ps files (e.g., in SuSE, bit maps are generated at 8000 dpi res.)
  - On-screen rendering of the bit maps is poor/fails for Acroread, Evince etc, even though printing may be OK.
- Addition of '\usepackage{lmodern}' allows the use of Type 1 fonts which avoids these issues.

- Backport 1.542.

Use &Apache::grades::get_scantronformat_file() to retrieve scantronformat file intead of reading from whatever file is on the server hosting the session.

Backport 1.540 and 1.541.

Bug 5789. Include Practice Problems when displaying a lost of problems to print.

Bug 5789.
- Include practice problems when displaying "Select Problem(s) to print" page.

Adds a new combobox to print-options to choose printing PDF-formfields in PDF-documents

Bugfix for LaTex-Error while printing a resource as author from construction space.

BZ5446:
1. Added support for %s title formatting code.  This will encode
   the section number if it is available for a print job.
2. Set a default title format so that the section can never
  (well hardly ever) get cut out of a print job's title by setting
  a default format string that ensures space for both the student name
  and the section in the first line, bumping the course to the second line
  and reserving a new third line for the assignment name.

BZ4320 - Add ability to print selected problems from the >entire< course
for selected students.

Fix typo.

Add [postscript] option to ucs usepackage.

1. Use utf8x encoding rather than utf8 as that's what the current
   ucs package wants.
2. Ensure that both londefdef and lonprintout are using the same set of
   packages so that UNICODE->UTF-8 translations print properly.
The magic set of packages is:

\usepackage[T1]{fontenc}
\usepackage{ucs}
\usepackage[utf8]{inputenc}
\usepackage{pifont}

1. Fix UTF-8 re-coding in entities.pm
2. add \usepackage{ucs} to latex header in
   lonprintout.pm, londefdef.pm.

1. upate to the new scheme of entity translation.
2. Add the following packages to the header:
\usepackage[T1]{fontenc}  - Some entites only exist in this font.
\usepackage{latexsym}     - Some math entities only live in this pkgs.

BZ5691  - correct the latex produced for
¨ and ´ so these entities don't cause print failures.
Note that entities.pm table will replace this RSN in any event, but
we don't like print failures in the meantime.

- backport 1.524, 1.525, 1.526, 1.528, 1.529

- typo.

- The past tense of the word "occur" is "occurred".
- Removing superfluous $end_page definition
- Adding missing &mt()
- Replace call to &get_student_view() with call to &get_student_view_with_retries() for res_url continaing: smppg,syllabus,aboutme or bulletinboard

Added inclusion of ams packages in the latex header sub, so that it's
consistent with what's in the londefdef.  Note...these two
spots where LaTeX headers are produced should be factored.

Bug #5631: detect errors in printouts for students.
Allow users to use the damaged output with marked error positions
(printing may take more than an hour, and 99% of the student printouts
may be fine)

Saving my work.

Avoid maximum user punishment!!!

A printout of for example phy183 exams takes 80 minutes,
but on the average "only" two printouts are damaged.

Saving my work, bug #5631. This might not work at all yet.

- backport 1.523

- typo.
- indicate the error was a network error.

- backport 1.522

- backport 1.521

- &mt() feedback about ssi_error during printing.
- include link to helpdesk
- some wording changes

Reset the encoded URL env. variable prior to each SSI fetch in
loops that do multiple SSI calls so that sequences/folders etc.
with mixed hidden/unhidden URL's will function
(BZ 5509).

Change arguments accepted by lonnet::appenv() to:
1. reference to hash
2. (optional) reference to array.

Change all instances where lonnet::appenv() is called to replace first argument passed (originally a hash) to a reference to the hash.

- Modify lonnet.pm rev 1.35 code intended to prevent "dangerous" modifications of the environment, so it will actually do this.
- Allow these modifications to be made in certain instances:
   DC switching to adhoc role
   CC switching to a different course role in the current course.
   user self-enrolling as a student

BZ 5509 - Added logging of ssi failures....this way if there are multiple
failures, the log file sees them all even though the user only sees the
most recent.

BZ 5623 - Properly propagate default value for print mode
from the consruction space 'Problem type' dropdown.

BZ 2885 - Added
\usepackage[utf8]{inputenc} to LaTeX prefix code to make LaTeX utf8
transparent (or so the LaTeX people claim).

Factor the logic of ssi_with_retries out into loncommon leaving only the
error handling to be implemented according to the policies of the calling
module (lonprintout in this case, but later grades too).

BZ5631:
1. Factored out calls to &Apache::lonnet::ssi into
   local ssi_with_retries
2. ssi_with_retries detects http errors and retries
   as many times as directed by the caller.
3. ssi_with_retries will report errors that
   cannot be recovered within retries via a set of
   $ssi_ module global variables
4. When output_data is rendering it's final page,
   if $ssi_error is set (indicating that at least
   one rendering failed due to ssi retry exhaustion,
   An error message is delivered to the user rather than
   just blindly printing papers that may have missing resources.

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BZ5554 - Add support for ldquo, rdquo entities and their
decimal equivalent entities.

BZ 4251 - Added problem type dropdown for constrution space prints.

BZ3143 - Added capability to print annotations.

- 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

- backport 1.509

- for those using the perl mechanism of building the CHOICES array by hand,
  they need to take care of &mt() the label, use of the xml mechanism
  will auto mt for the user  (Which will result in not trying to translate
  problem titles)

- rewording error message in an attempt to be clearer

- add randomly ordered notices to
   - nav maps (on display of folders)
   - printout (when printing for Students or Anon that it will not be
               randomly ordered)
(BUG#3960)

- some ttranslation improvements

- BUG#5328, yeat another tweak think this will get it right in all cases now.

- BUG#5328, really fix the application of a style file in print helper

- BUG#5328 - CSTR style file not functional

 BZ 4243 - format_page_transformation - differentiates now between the
two types of 'tyep 4' requests using the print type parameter passed
in.

- switch Store to Save

Use lonnet::getfile to fetch the raw latex file.

Removing the page_format_transformation and other page junk helps
printing of raw LaTeX resources quite a bit.

BZ 4711 - Make printing of LaTeX resources work if only a single resource
is printed.

* increase character contrast by default (white background)
* labels
* fix some &mt()s
* css on roles screen

Fix some serious measurement typos and calcos.

Bug 4652  - add a bunch of math escapes to print mode.

- support unicode en-dash

Ensure that units are consistent on all paper size/margins choices for
all columns etc. etc. etc.

Bug 4446 - really ensure that the first problem in anon and
nonanon mode will have the same amount of vertical space
prior to the problem text itself... on the principle that
it is best to be consistent.

- complet switch to LONCAPA::map

Think that this now does title substitution correctly in all cases..or
at least won't cause failures:
- Use format string chopping to do multiple substitutions since I'm not
  smart enoug to get \G to work the way I want.
- deal with a nasty edge case.. where the substitution string was trimeed
  in the middle of a LaTeX escaped character sequence (e.g. after \ in \%).

Prior change seemed not to be able to substitute for all
the actual %letter strings in  a format string like e.g.:
Name: %10n \\ Sequence: %10c  \\ Resource: %10a Done
leaving % format strings hanging.  The correct thing
to do is to do all the format replacements and >then<
go back and escape any remaining %'s the user may have
pathalogically left in the format string.  The
current version has been tested on a nasty format
string that looks like:
Name: %10n \\ Sequence: %10c  \\ Resource: %10a Done % 10% done %10  %b done
and not only does not loop, but produces LaTeX output that can print.

- if the subsitiontion string had a % in it could cause infinite loop.
  or malformed result

Protect printf_style_subst from formatting items that
might contain RE special characters.

Bug 3586 - Allowed specification of not just where to substitute
pieces of the title into e.g. surrounding text, but a limit on
each field size like sprintf but truncating overfull fields.

- BUG#5045

- backport 1.484

- BUG#4964, lanscape printing was printing a bit wide (Mark Lucas)

Fix a few issues with which print selectsion are available in which
roles/states.

- fixes 4093

- revert to 1.477

Support printing a directory of resource space.. need work now back on
directory of course.

Restrict what can be printed from resource space for now to just the
file being looked at.. need to add code to look at files in current
res dir.

Get printing of current resource working when browsing /res  part of
bug 4039

- bug#4955 answer only mode was not properly escaping problem titles

- some reduction in copy&paste coding

- 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

Typo

- BUG#4942 - don't stretch everything to the bottom

- some more of BUG#3809

- removing some logging

Made the left margin value really the left margin value rather than relative
to 1.0 in. as per Felicia's suggestion in bug 4878

That last message should have read defect 3809.

Get the code printing to look like what felicia wants (Defect 269)

Skip page margin settings and default if user does not have pav privilege.

- BUG#4929 'print from selected folder' was limiting to onl problems even though it said resources

- pfo wasn't being properly detected in all cases
- hidea to 'force a newpage' from  non pav users

- xhtml
- turn back on the regexp rewriting of the page dimesions for 2 column mode
- simplify the code setting up the default page sizes

- 3740 and 4878 - Make the margins piece of the helper have defaults that
  are sensitive to the page format that was selected.. allow margin selection
  for 2 col output as well.

NOTE: Due to the way that %page_formats is defined, default units have flipped
from cm -> in.  However if desired %page_formats could be recalculated to in.
NOTE: converted measures that were in pt to in in $page_formats since in fact
pt is not an option in the helper, converted mm -> cm as well.

- disable page margin code in the 2 column case

User margins even in 2 col mode.

Remove code that short circuits display of margin selector if column count
not 1.

Defect 4374 - subsequences of sequences don't print... fixed for
the construction space case.  Other casees alread fixed back in 1.434

Wording per usability meeting

remove one more logthis found.

Replacing grppg with smppg from group homepages. Group context for group homepages detected from course domain and course number in URL.

- style police

Add ability to set the print format

Go back to using latex_special_symbols for username cleanup..now need to
fix that function to work right in header mode.

- swithch the code selector to a drop down and add in a blank one
- since the default of all got removed need to call adjust number to print

- removing the unloved page size selector from 2 column mode again

Fixes so more menu buttons are provided when group page is accessed via Navigation controls (i.e., as a registered resource).  Other changes so grppg behaves like smppg.

- add more words to make it clearer what is occuring,
- remvoe the defualt of all since all isn't a number
  (BUG#4871)

- hide the specif code sleector unles there are codes to print BUG#4870

For now remove attempt to allow selection of sequences with subsequences.

Remove some log spew... try for recursive print of sequences.

Finalize fixes for defec 4832 Names with chars special to latex don't
print.

Try to escape names to fix defect 4832... need to test more thoroughly.. but
at least no server crashes and normal names seem to work.

Better try at getting constant page count /student.

Make the \special{ps: for ENDOFSTUDENTSTAMP easier to find
by putting it on a line by itself.

Only really need to stamp end of student in postscript

Insert STARTOFSTUDENTSTAMP and ENDOFSTUDENTSTAMP to bracket the postscript
output of a student.  This is the first step to dealing with request 4786,
to mark the extent of a student in the postscript.

&Apache::lonnet::unescape -> &unescape
&Apache::lonnet::escape -> &escape