CVS log for loncom/xml/lonxml.pm

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- WCAG 2 compliance

- For 2.11.4 (modified)
  Include change in 1.574

- "Edit with Daxe" button above textarea when using text editor to edit
  an html file uploaded to a course, if domain/course config allows Daxe.

- For 2.11.4 (modified)
  Include changes in 1.570, 1.571

- For 2.11.4 (modified)
  Include change in 1.573

- For 2.11
  Include one change in 1.566 omitted in 1.531.2.25 backport.
  Include just one change from the many changes in rev. 1.567.
  Backport 1.573.

- Use lower case for input element name for consistency with other buttons.

- For 2.11
  Backport 1.563

- For 2.11
  Backport 1.565, 1.566, 1.568

- Remove trailing white space.

- Save some screen real estate by eliminating breadcrumbs trail when
  editing HTML file created or uploaded to a course in Course Editor, for
  both text and Daxe  editors for both Main and Supplemental Content areas.

- Available editors in Course Authoring Space, or when editing an html file
  created in a course folder using the Course Editor is a domain default,
  which can be overridden in specific course(s) by a Domain Coordinator.

- For 2.11.4 (modified)
  Include changes in 1.569

- Support "Save and Edit", "Save and View", and "Discard and View" buttons
  above Daxe Editor iframe, when editing HTML file in Daxe, for consistency
  with UI for standard "Text" Editor for this type of file.

- For 2.11.4 (modified)
  Include changes in 1.563 and 1.564 omitted in previous 1.531.2.24.2.1
  and changes in 1.567 and 1.568.

- Move any warnings about missing starting/ending html or body tags so
  they occur after (or below) buttons for editing when viewing HTML file
  in Authoring Space.

- For 2.11.4 (modified)
  Include changes in 1.563 (part), 1.564 (part), 1.565, 1.566

- If Daxe available in current Authoring Space, include "Edit with Daxe"
  buttons to switch to Daxe when editing an assessment item with colorful
  editor or with XML (text) editor or an html file with standard editor.

- Changes in handle_save_or_undo() in lonhomework.pm rev. 1.323 caused the
  "undo" button to have no effect for html file editing. Change input items
  to button and add onclick call to setmode() to reinstate.

- Switch order of <div>s to reduce the header above the textarea by one row
  when using LON-CAPA's standard html editor in Authoring Space.

- Include file path with colored background in collapsible header used for
  Daxe Editor page. Buttons to access other available editors at far right.

- Move &setmode_javascript() from structuretags.pm to lonxml.pm to facilitate
  reuse.

- Fix typo in rev. 1.561

- Breadcrumbs text when displaying/editing resource in Course Authoring Space.

- For 2.11
  Backport 1.556 (part), 1.557, 1.559, 1.560

- Bug 6873
  LONCAPA-prerequisites needs perl-Number-FormatEng.

- For 2.11
  - Backport 1.558

- For 2.11.2 (modified)
  - Include changes in 1.559.

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

- Include Math::Calculus::Expression in perl Safe space, to support
  parsing of an algebraic expression into a tree structure, followed by
  simplificnation (including substitution of named variables etc.).
  - Requires perl-Math-Calculus-Expression_loncapa (slightly modified version
    of Math::Calculus::Expression from cpan.org).

fixed bug 6846 (bad regexp to match part id)

- For 2.11
  - Backport 1.554

- For 2.11
  - Backport 1.556

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

- For 2.11
  - Backport 1.555

- Eliminate jsMath.
  Use MathJax instead in cases where jsMath use is indicated in a resource,
  ina user's preferences, or in course preferences.

Changes related to editors in authoring space.
- moved several menu related subroutines from structuretags to lonhomework
- typos, wording and German translation
- menu structure (xml editor): merged graphical and advanced sections into miscellaneous
- replaced the template menu by separate menus for each submenu
- adjusted styles and structure of the actionbar

- For 2.11
  Backport 1.553

- Re-enable rendering and editing of physnet resources.

- For 2.11
  Backport 1.550, 1.551, 1.552

Bug 6476
 - When target is grade, put rawrndseed returned by &initialize_rndseed()
   in $Apache::lonhomework::rawrndseed so it can be later stored in:
   in %Apache::lonhomework::results

- Coding style:
   - keys(), sort()
   - standard indent is four spaces

- Coding style.

- For 2.11
  - Backport 1.549.

- Serve .css or .js file content as-is in Authoring Space, if file is a
  dependency of an .html or .swf file currently being displayed.

- For 2.11
  - Backport 1.548.

- Editing HTML file uploaded to Syllabus:
  WYSIWYG editor set to load automatically in this case, so "Edit Math"
  button needs to be hidden by an onload action.

- For 2.11
  - Backport 1.547

- Editing HTML file uploaded directly to a course.
  - No undo button.
  - No help links for output tags or languages.

- For 2.11
  - Backport 1.546.

- Modify changes in rev. 1.527.
  Re-enable display of Script Vars link in "Correct answer" box
  when viewing/grading student's submissions with "View Answer"
  set to other than "no".

- For 2.11
  - Backport 1.545

Internationalization of colorful editor: Added missing &mt() calls

- For 2.11
  - Backport 1.544

- Bug 6629.
  - Re-enable access to functionality in Math::Complex in Safe Space by
    copying Math::Complex 1.55 to LONCAPA::LCMathComplex and eliminating use
    of Config.pm
    - Whenever ./UPDATE is run to install or update LON-CAPA, the code which
      sets $nvsize in the standard Math::Complex script will be run in
      lcmathcomplex.piml and the value of $nvsize will be set to the
      appropriate value: 4, 8, 10, 12 or 16 in LONCAPA/LCMathComplex.pm.

- For 2.11
  - Backport 1.543.

- Initial edit of minimal template as Syllabus page
  - Need to include forceedit=1 in query string when saving changes in editor
    so modifications are preserved.

- For 2.11
  - Backport 1.542

XHTML: action attribute in <form> tag required (dummy attribute added)

- For 2.11
  - Backport 1.541

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

- For 2.11
  - Backport 1.540

- For HTML file uploaded as syllabus, or for "minimal" syllabus template,
  load WYSIWYG editor automatically in "Edit" mode.

- For 2.11
  - Backport 1.539.

- Provide "Manage dependencies" button when editing an HTML file uploaded as
  the syllabus, i.e., user supplied file, instead of the templated syllabus.

- For 2.11
  - Backport 1.538.

- Strip trailing ::::: from supplemental folder name when constructing
  folder hierarchy (edit mode for HTML files uploaded to supplemental content).

- For 2.11
  - Backport 1.533, 1.534, 1.535 (part), 1.536, 1.537

- "Exit Editing" returns user to Course Editor if edit mode was accessed via the
  "Edit" link for a templated page, or uploaded HTML/js/css/txt file, in the
  Course Editor.

- "Return to Last Location icon/link" needs to be available after pusing "Edit"
  for published HTML or other text file in course context.

BZ 6626 - Don't strip variable optinos for foilgroups.

- HTML files uploaded to course's Supplemental content area can be edited,
  and any dependencies can be replaced (or uploaded if missing).

- Bug 6629.
- Reverse one change in rev. 1.511, so Math::Complex::ln is available in
  safe space for perl 5.10.0 and older.

- For 2.11
  - Backport 1.532.

- In &get_courseupload_hierarchy() pass $url to symbread().

- For 2.11
  - Reinstate 1.526 (reverse 1.531.2.1). MathJax is in 2.11.

- For 2.11.
  - Reverse changes in 1.507.  Still called by "pre-3.0" grades.pm in 2.11.0.

- For 2.11
  - Reverse 1.526. MathJax not in 2.11.0.

- Standard warning style for messages about resource processing issues
- Consistent wording username:domain

- Part of change in lonxml.pm rev 1.529 moved to subroutine:
  &get_courseupload_hierarchy() which returns symb, item title in course
  and path based on folder context for HTML page uploaded directly to course.
- Bug 6448.  "Manage Dependencies" button to open pop-up window to upload,
  replace or delete files associated with an HTML page in a course.

- Edit mode for a file uploaded directly to a course (e.g., html page).
  Replace path to file with path based on folder/sub-folder context of
  symb in course context for /uploaded/ item.

Don't show discussions when previewing a resource that is already in the course

Fix XHTML

*** empty log message ***

- Backport 1.525.

- Eliminate "Use of uninitialized value in concatenation (.) or string" warnings.

Evaluate vector conditions with respect to each other

- Backport 1.520, 1.521.

- &authorspace() routine now takes an argument: $uri
  so "Construction Space" breadcrumb points at appropriate author space
  for resource/directory being viewed or acted om.
  - current role could be different or ("no role" - i.e., cm), so is only
    used to determine authorspace when $uri is unavailable.

- Use values from perlvar in place of hardcoded strings.
- Update POD for &increment_counter().

Be able to access labels when defining values

Values in functionplotresponse rules can be evaluated

- Backport 1.519.

- Avoid "Use of uninitialized value in concatenation (.) or string" warnings.

- Backport 1.516, 1.518.

- Backport 1.518

- Complete editing of regexp started in 1.516.

- Backport 1.515, 1.516, 1.517.

- Remove unnecessary call to verify_html().

- Publication of files containing valid XML was being disallowed.
  - XML declaration is of the form: <?xml ?> (with no closing </xml> tag).

- RichTextEditor off by default when editing HTML files in Construction Space.

- Backport 1.509, 1.510, 1.512, 1.513, 1.514.

- resize_textarea() available when editing js, txt, and tex files.
- no "Edit Math" button when editing .tex files.

- Replacement of user's environment.wysiwygeditor with link to switch to/from
  CKEditor 3 Richtext editor on textareas where needed.
- Rich text editor link available for Text/HTML block in colorful editor
- Eliminate duplicate Richtext link for textarea entry fields
- "Edit Math" button hidden when richtext editor enabled - use <span> instead
  of <div> for more compact display.
- Help icon for "Edit Math" hidden by switching img src from help.png to
  transparent gif. Additional arg to loncommon::help_open_topic() is
  imgid - id of img tag for icon associated with each "Edit Math" button.

- Eliminate routines no longer needed following switch from FCKEditor 2 to CKEdi
tor 3
- Eliminate checking for environment.wysiwygeditor (no longer used).
- Access to "Richtext" editor available via link on each textarea for which it is
  to be made available.
- When editing an HTML document provide "Edit Math" button to allow
  insertion of TeX within the textarea. Button is hidden if Richtext editor in use.
- Additional tags permitted by clear_out_html() - <pre> and <chem>.

BZ6331 - Import LaTeX::Table into safe space before clamping down permissions.

- Bug 6251.
  - Third arg is now a ref to a hash, instead of a hash.
  - New (optional) fourth arg, is an additional attribute for the
    select tag, e.g., an onchange action.
- Update calls to loncommon::select_form() accordingly.

Be able to wrap stuff into a part using colorful editor

- Backport 1.508.

changes sub print_pdf_radiobutton - only print a single PDF-form-radiobutton instead a whole tabularx

Clean out CBI "Token" mechanism (never used)
Use common routines for some grading menus
... work in progress, currently partly defunct

In process of removing remote control, remote navmap and different icon modes code
Also some minor refactoring.

- Backport 1.505.

- xhtml.

- Backport 1.500 (part), 1.504.

Localization - Corrected "loncommon::select_form" usage:
Only translate once but translate what needs to be translated. Don't translate custom text, e.g. custom folder names.
Even avoid ISE: Unusual but possible special folder names on messages screen used to be misinterpreted.

- Bug 4936.
- Allow publication of raw .tex files in Construction Space.
Work in progress

- Breadcrumbs displayed in standard location when displaying or editing
  .txt, .js, .css or .tex files in Construction Space.
- Use different anem for editor in breadcrumb trail depending on type of file.
- Bug 4936
  - Can edit .tex files in Construction Space.

- Link to enable/disable WYSIWYG editor for HTML editor in CSTR.

When editing an HTML document uploaded directly to a course:
  - Only include Math Rendering switcher in edit_tools.
  - Do not generate CSTR breadcrumbs.

- Backport 1.499.

- Backport 1.499.

- Bug 6063.
  - Omit no-cache directive for XML files served by https to IE client browser.
  - Set expiration 60s in the future.

- Backport 1.497, 1.498.

- Avoid HTML encoding conflicts:
    Don't use unescaped "&"
- Better separation of content and style
    Moved quotation marks and bold tags from mt text to script code
- Consistent wording and highlighting of Back and Next buttons
    (course initialization helper)
- Cloning courses helper screen:
    - Added some missing phrases to translation files (de.pm, zh.pm)
    - Wording: It's usernames, not names (who are allowed to clone)
- Wording (de.pm)

Paul Rubin's interface to R.

Works now. However, it needs additional Perl libraries, which are currently
commented out. Also, an R-package needs to be installed.

Changes related to modification of LON-CAPA screen header.
Added dynamic link to Construction Space to breadcrumbs

Changes related to modification of LON-CAPA screen header.
start_page calls:
- Added breadcrumbs
- Added head_subbox and included CSTR standard header

"File not found" error message:
    - Added error style
    - Optimized &mt usage

- Replaced some tabs by blanks for higher script editor compatibility

Support for R CAS
- needs testing
- better error handling
- correct blacklist
- correct list of allowed libraries

- Bug 5826.
  - Edit button in Construction Space for files with extensions: css, js, or txt.

- "Edit Math" button available when editing HTML documents in author space (wysiwyg disabled).

- Backport 1.491.

- Don't call &verify_html() for .sty files.

- Backport 1.486, 1.490.

Detect if there were timeouts or other internal errors during grading.

Do not charge a try, allow student to enter same answer again.

POD comments added/altered

Subsitution of $m in expressions such as <m>$m$</m>
(inside <translated> block) which resulted in LaTeX errors when generating printouts.
 - update to previous fix (with lonxml.pm rev. 1.487).
 - preferred solution: issue was restricted to perl variables named with a single character (e.g., $m, $a, $L etc.).
   - modify regexp in londefdef.pm to detect these inside<m> tags. Revert lonxml.pm to 1.486.

Backport 1.487.

Stop evaluating variables included within <translated> blocks,
  (Any required substitutions already occur elsewhere).
- Was causing subsitution of $m in expressions such as <m>$m$</m>
 (inside <translated> block) which resulted in LaTeX errors when generating printouts.

Backport 1.486.

Past tense of "occur" is "occurred" (rr!)
Also added some missing &mt() calls and corrected some other little typos

Add several Methodes to generate LaTeX-Code for PDF-formfields

- Added error style and div and blank before message text to error message in CSTR
- Changed span to div for warning message in CSTR

- Added two missing &mt() calls to error messages
- tth - same wording everywhere

Localized, optimized and standarized warning messages

Bug 5695.
Improved fix.  Earlier fix caused other things to break (e.g., scantron grading). Now explicitly pass a grade_noincrement form element in the ssi call to inhibit the unwanted second increment of the counter when displaying submission details ("by datess and submissions" case only).

The &due_date, etc, functions now return correct timezones and languages.

Same mathrendering optionlist texts as in lonparmset.pm and lonpreferences.pm

Rendering options (language and math rendering) also available in xml edit

Possibly fixing Bug #5695

Localization:
Added missing mt() calls

- backport 1.475

- Remove unbalanced </p>

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

Bug #3381: stop people from publishing broken HTML files

Part of Bug #3381: LON-CAPA yells if no <html>, <xml>, <body>, etc.

Allow authors to use function &implicit_multiplication()
This is necessary for customsresponse problems which should behave like formularesponse problems.

- make editing html/sty have same look and feel as EditXML
- elminate bottom buttons

- save the target away so it can get enquired about

- correct some documentation

rename response_id -> part_response

Some linguistic changes to reflect the fact that response_id's are being
passed to the bubble tracking stuff.

- BUG#5481, throw errors in CSTR when the are extraneous unnested startoutext/endouttext tags

- missed a addbuttons removal

- switch to using fckeditor rather than html area

BZ 4074
Add support for maintaining the counters for the number of bubble
lines required per response in exam mode.

Revert

BZ4074  - Start moving the book-keeping for the number of bubble lines
in a problem into lonxml.pm.. to be invoked by the various problem types

- BUG#4816, implementing the <translated> idea

- BUG#4816, implement new &languages() routine for authoring

- get the Edit for .sty to only appear in CSTR space

- adding cstr headers on to .sty file when editing in CSTR
- enable the autoresizing textarea to editing .sty files

- backport 1.455

- BUG#5400, was bleeding resource titles across requests if an html file
  contained some subset of .problem related tags

- add the response id and part id to the error message BUG#5399

- typo

- apply to auto-resizing changes to the edit of html pages in CSTR too

- add on change detection to the html editor (both views)

- reorder the textarea generation code

- more restrictive about what is allowed in id numbers (throws errors on in construct to hopefully not break too many users)

- <while> tag was mishandling the grade/answer/analyze modes when displayed output was generated
- moving script var generation out-of main result mechanism and move it to an out of the way location the xml parser handles readding

- adding some docs to some internal routines

- show insertables by default

- prevent some uninitialized warnings

- handle space in urls that are <allow>ed

 - elminating insertlist.tab

- xml mode of insertlist was not respecting the <show> setting

- when changing a tag's attributes  and intersting something inside of it in one pass, the insert was ignored

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

- cleanup some nasty old bookkeeping code

- switch to using xml description of insertionabilities

- modfying how insertlist looks
- some code simplification

- backport 1.436

- log spew

- backport 1.435

Bug 4604  Include baseurl in message.

- backport 1.434

Include symb in msgid when sending feedback about a resource.

Include an error bit in msgid (1 if message is a "bomb" caused by an error when rendering a problem.

Include symb and resource title in messsage (<symb> and <resource_title> tags) when feedback is about a resource.

Navigate Contents page now checks for unread feedback or errors using symb instead of just resource url.

Navigate Contents page checks for resource context based on symb in msgid instead of in [url] included in message subject.  Backwards compatibility with old-style messages retained.

Subject for feedback messages about resources appends message title instead of url inside [].

Title on feedback page now avoids leaking unencrypted file name in cases where no title was assigned to a resource with hidden url.

When displaying feedback messages about a resource in a course, "Refers to" link displayed when viewer has corresponding course role selected includes symb in the link. Link text is now resource title.

"Refers to" link points to unencrypted resource url if feedback message is viewed under role other than original course, only if user has bre privilege for the resource, otherwise "Refers to" link is not displayed.

lonfeedback -- Some replacement of decode_symb() and &clutter() and &dewrapper() with &get_feedurl_and_clean_symb() for replies and edits of discussion posts.

lonfeedback -- More work on in ensuring hidden urls are encrypted or unencrypted as required.

- correct reference to subroutine to correct namespace

- Make <formulahint> work with MAXIMA
- fix normal formulahint. Didn't have access to &capa_formula_fix

&cas()

- disable some debuggin routines

- change misnamed variable

	Bug #5081. Adds undo function to edit HTML.

	Bug 5081. Toward giving edit HTML the same functionality as
		edit XML. Still need UNDO function.

	Bug 5081. HTML editor now has "Save and Edit" and "Save and View"
		  buttons.

- BUG#5076 warn when tags don't get closed.

- adding support for <vector> answers
    <answer><value>1</value><value>2</value></answer>
    requires 2 <textline>s
    <answer><vector>1,2</vector></answer>
    requires 1 textline

    Still borken:
    <answer type="unordered"><vector>1,2</vector><value>3</value></answer>

- complte the move of whichuser() from lonnxml -> lonnet

- backport 1.421 1.422

- problem counter updating requires forced reloads of the session environment

- was double initing the html area editor in CSTR for html pages

- making some debug tools available n the safe spaceto safe space

- BUG#5027

- remove debug

- BUG#5013

- fixing the english

Correct order of substitutions for LaTeX special chars.

Adjust latex_special_symbols so that instead of mapping some stuff to " "
it gets mapped to LaTeX to generate the correct characters.

- need to add the machine id to the error messages in order for to tell the cause of some messages

- throwing ISE when creating new html file

- moving this global from lonxml into the session environment

- moving htmlare filed handling to be in htmlcommon like the rest of the htmlarea handling

- move xmlbegin to loncommon

- move fontsetting to be with start/end_page

- xmlend should only get called by end_page

- moving the 'only body tag when in construction space and using the remote control' detection into the bodytag function directly

-elimintaing some endbodytag usaages

- adding machine that cuased the error to be added to the error message

- adding the machine id of the computer that is throwing the error message

- start_page

- elmintaing more direct manipulations of form.counter
- some style cleanups to the use of ::ssi

- log spew

- being more insistant about correct id

- add some functions to make form.counter easier to live with

- need to setup the global

defect 4520: When printing a <pre></pre> section latex symbol substitution
must be turned off or else output can look funny e.g.
%  -> \%  <  -> \ensuremath{<} etc.
 ----------------------------------------------------------------------

- make rawmode actually work

- need to only do the grade mode endredirection once on the main intial inner_xmlparse call, not any reentrent calls to it

- reenabling Math::Complex
- cleanse any possbile sub namespaces under the Safe namespace to reduce memory usage

- need to remove Math::Complex, this means of including it is causing over 600k of memory leakage per safe space initialization

- reset the counter evertime when looking at resources in CSTR

- increasing use of plainname

- inner_xmlparse is renetrant need to preserve the state of Apache::lonxml::redirection

- Apache->request doesn't work unde mod_perl 2...

- throw an error when enderedirection hasn't been called

- BUG #4435

- allow 'raw' access to an html file

- rework how extlink is used

- adding Math::Complex and Math::Cephes::Matrix

- preserver CDATA sections as such

Bug #3750:
View HTML/XML/... ignored bodytag settings, forced style.
Double DTD entry, because lonxml now produces one itself.

Back in town.

- discussion per reource on a page was happening

- \ wasn't printing

- this is what clutter takes care of

Change so students can view embedded images in HTML pages uploaded via DOCS.

- useless lines

Put all XML/HTML cleanup into separate handler

- setup env so lonxml::whichuser returns data for user being graded
- need to reset rndseed, since we don't know til the end of <Task> who we are grading
- remember who we are grading

- ENV -> env

- BUG#4045 diable the srand and rand Opcode, attempts to use either will throw errors
  and not work

- making bridge tasks randomize whihc instance in a dimension is shown

- BUG# 2331, homework can be done in 'sequential' mode now, Only show part 2 once part 1 is correct, or unanswerable (tries exhausted)
- added new function &check_status($partid) to check the current status of a part

- adding Apache::lonhomework::parsing_a_task

- escape { and } for printing
- handle strings of special symbols more correctly

- style="width:100%" tells a textarea to be as wides as it can be

- can do a very simplistic rendering of a bridge task, doesn't actually implement any of the functionality, just puls it a part, picks the first <Instance> in a <Dimension> and wraps the <Criteria> in a <table> , enough to get started on implementing the proper acces controls logic

- context_type takes care of switching it to xml now

- only send last modified headers for published requests

Exclude discussion by default from ssi_body calls.

Do document-checking via ssi-call
Do not let people publish documents with errors

- jsMath mode works on HW problems in a course
- jsMath works in FDBK

- my imperfection nows no bounds

- stop allowing infinte loops to cause havoc, nesting alram() doesn't work so we need to fake the ability to do it.

- ttm can now be forced on, which means Hi XML, what you mean we really have to be xml now?
   - roles screen with no roles doesn't barf in xml mode
   - viewing a homework problem with an inline remote and no selected roles doesn't baf
   - pref screen to change back to something else doesn't barf

- no guarentees about anything else, not that the remote control in particular is non functional

- changes to xmlbegin to allow use inside javascript

More known tags for lowercasing during cleanup.

Bug #1148: Treebuilder removes perfectly fine endtags, Tidy is not ready for
use. Just manually fix the basics so the button can be used.

- typo

- attempting to correctly set the Last-Modified header. BUG#603

 BUG#3851, when able to edit a simple problem, don't throw bombs, just show the error/warnign messages

- BUG#3704, also whichuser will now will better if a user is trying to force through a course/symb/user/daom cahnge,

- headers on in remoteless CSTR html editing

 - fixing at least BUG#3648, BUG#3649, simple problem editor now uses ::ssi to get the rendering of the problem.

BUG#3634, don't emit the fullpage plugin load commands if htmlarea isn't being used.

- BUG#1363, unit="$" now requires the answer to start with $
            unit="," now requires proper commation
            unit="$," requires both

- backport 1.345

- BUG#3553, whichuser wasn't checking allowed with section

- xhtmlizing cleanup

- BUG#3445 try to detect when someone uploads a rendering of a Lon-CAPA reesource. (Wlooks for 'BEGIN LON-CAPA Internal'

- escape any dollar signs that appear in a string arg if they aren't immediately
    followed by a-z A-Z _ { this is less restictive then what I did in 1.293, and
     shouldn't trigger bug #2420 again. Crossing my fingers.

- BUG#1363, support $ and , format specifiers in <numericalresponse> if $ is required, require the answer to have a $ at the beginning

- only do the gettimeofday calls when in debug mode

- add in timing info to the debugging info

 backport 1.338

- add ability to turn off wysiwig eidtor when editing html files

- allow multiple style files

- error message now reads better depeing on context BUG#3312

Cleanup for bug 2838 is done.

Bug 2838 (print attached discussions too) is fixed with the use of newparser. I have another variant with inner_parser too but hope to hear your opinion first.
As I've mentioned in log for lonfeedback.pm I am open for any changes of printed info (I want to talk with people about this).

Spelling links

Bug 3182 (Printing random label problem with more than one image.) is fixed.

- need to allow require because of &xmlparse recursion into run::evaluate

- can't do this in a subroutine the $decls are my scoped and therefore not visibile in the subroutine, Need to move it back into the regexp, which mean enabling require opcode when doing run::evaluate might be able to get around this in a future release.

Underscore problem is fixed (escaped everywhere).

- BUG#3186, when doing redirection, need to turn metamode off, so that endriderection does actually get any interveing text.

Transfered one line of the code from lonprintout.pm to lonxml.pm to fox a bug
3175 (printing with ____).

- BUG#3177, silly regexp was causing massize slowdown on large <script> blocks

Bug #3066: spurious "enable/disable htmlarea" link is gone (hopefully)

- BUG#2783, <reactionresponse> now does a parse pass to reorder strip whitespace etc, from  oth instructor supplied answer and student supplid answer before comparing.
- new function &chem_standard_order available to Safe space

Fullpage editor for html files in Construction Space

- new course PARM 'disablesigfigs' allows one to turn off sigfig checking in the entire course (BUG#2842)

Work on making fullpage HTMLArea - still need to install the plugin.

HTMLarea - only have 5 minutes.

There are lots of odd problems with Mozilla, not just meta-refresh, but
also popup windows and one random segmentation fault.

- fixes for randnumber generation
   - due to a error in coding the 64bit and 64bit2 rnd seeds were throwing away the second half of the seed, we now preserve this functionality and make it explicit
   - additionally 64bit3 now uses all 64bits of the seed
   - also added new function pushrandomnumber poprandomnumber to be called instead of setrandomnumber before we were crunching the Safe space random number generator state, as this function is used bu thing the <optionresponse> and <radoibuttonresponse> this meant changes in the internal randomization code could screw up later Safe space random calls the old method is preserved for blank 64bit and 64bit2 randomiztion env.

Throw away unhandled tags in tex output, just like web browsers do with
bogus html tags.

- the tag  <annoy)guy> is valid. :-)

- BUG#2866, Were npot doing a case insensensitve search in get_all_text_unbalanced
- also were incorrectly allowing <loncapa_internal_turn_sylyeon/off /> need to require it to be capitalized
- some protective \Q \E added

- trying to be UTF8 transparent

- utf-8 can do some funk-ass things to Perl

- the character to escape might be the first caharacter on the line

- escape \ the most fun character in the world.

- Fixes the order in which things get escaped, with the old order things like ° broke
  now it
   a) escapes individually the special characters except for & and #
   b) converts HTML entity references to correct TeX
   c) escapes any & or # that aren't preceded by \

Cleanup has been done for latex_special_symbols. Now you can print carets, ~, $, $$$, #, ###, %, and ... correctly

- Added &Apache::lonxml::info, for display informational message (saved changes etc.), messages are suppressed when not in CSTR
- Tryin to address BUG#2305, we were emitting text before the <html> tag (error messages etc.)
   - now exists &Apache::lonxml::message_location() which is used o mark where messages should go
   - &Apache::lonxml::add_messages() which puts the info/warning/error message into the page (And should be called right before display the results of the parse)

- Homework Edit,EditXML, and display modes converted to use this mechanism
- HTML display and Edit converted to use this

- printing was breaking for ½

- Removing some debug stuff

- one more try at fixing this variable eval thing,

- add access to the &Apache::lonxml::error funtion inside the safe space
- clean up the error function a bit
- the use strict in the new evaulate function looks to be uneccessary.
 (I had things backwards in my external test script that I was prototyping in)

Added keyboard shortcuts to construction space editing.

- BUG#2414, okay $$a should work when only $a is defined.
- commented the regexp of doom some

I fixed my own bug. When I added line allowing to print something like ###3 I
disallowed to print HTML entities (for example &$984;). Now all these possibilities are supported and can be printed.

Added line #414 and now it's possible to print ###, ##, ...

- print seems to not work in Apache 1 on Fedora, switching to $request->print
  (One might argue that it always should have been thus.)

Bug 2661 (Printing error for "capa units" problem) is fixed. I added \strut in the line 408 to avoid print accent and print real ^.

- turning on the code to hide the FDBK discussion if the problem shouldn't allow it.
-  currently only allows view of discussion when in 'CAN_ANSWER' 'CANNOT_ANSWER' modes

- Hey lets actually use those silly parameters to the styled tag for something, like I don't know, maybe evaulating variables inside the style? Nah. that be what they'd be expecting. (Err, this is a guy commit)

Revert back to revision 1.293 due to bug #2420

- BUG#2400, message about Edit errors may only be edit modde errors

- this should squash the repopen of BUG#653 (AT&T blows up)

- escape $ in args in some cases

Changes the name of environment variable for the style file.

Added possibility to include style file during printing from the construction space. Waiting critical comments from Guy.

- convert end lines into unix style \n
- modify lonxml html editor and problem editor to correct this

Removed last changes.

Bug 2323 (problem numbering when printing exam with answers) is fixed for resources from sequence (not for selected students yet). I want to know the Guy's opinion.

- londefdef global reinit paranoia

- BUG#2322

Move <mt>-tag into separate module to avoid module-dependency vicious cycle.

Internationalization, and in particular, lonlocal:locallocaltime and
Japanese dates.

- this should fix going compute bound for style file redefinitons that causes reaches across intervening text,

- BUG#2254, <m> should not be run::evaluate afterwards

- backport lonplot.pm 1.91, lonxml.pm 1.281

- Can't do Apache::lonnet::ssi when &xmlparse()ing from inside the safe space, register the url and call it after we absolutely out of the safe space.

Internationalizing.

- start locaization of structuretags.pm
- need to check form values against localized versions of string (it works!)
- Need to stop enociding high ascci othewise no umlauts

Getting status info into list_discussion.

Further cleanup of spaghetti between lonxml::xmlend and
lonfeedback::list_discussion in preparation of an overhaul of
the discussion feature.

In preparation for implementing threaded discussion and disentangling COM
from FDBK, disentagle the subroutines - there is really no reason for the
discussion display to be embedded into lonxml.