Arena change history

(reverse)

History of changes per release made to Arena by volunteer developers after move from the World Wide Web Consortium to Yggdrasil Computing, Inc.

0.3.61 (24.03.98)

• Mutually adapted Arena and libwww 5.1 (w3c-libwww-5.1k). Henrik Frystyk Nielsen <[email protected]>.
• Added verbose progress indicator callback function. Henrik Frystyk Nielsen <[email protected]>.
• Canceled libwww 5.0 compatibility.
• Added extra header files inclusions to fix possible problems with stdio and stdarg family functions declarations. Reported by Shawn K. Quinn <[email protected]>. Patch by Michael Koehne <[email protected]>.

0.3.60 (28.02.98)

• Fixed stylesheet corruption bug in header tags (<h1>, <h2>, etc) parsing routine.
• Moved pixmap freeing to Image freeing code (DelImage()).
• Reworked document tracking and freeing code.

0.3.59 (24.02.98)

• Fixed a bug in fly-by hints that has been messing scrollbar operation when modifier keys (Shift, NumLock, etc.) were down. Stephen McCamant <[email protected]>.
• Added doc to arguments list of some of document display functions --- move towards reentrant code.
• Added doc to stylesheet parser functions arguments lists (to make the stuff reentrant).
• Improved ``mkdir-p'' script portability (avoid ``:'' in shell expansions). Now the scipt works even with ultrix ``sh5''.
• Added test for ``XInternAtoms()'' availability (absent in X11R5).
• Added test for ``strdup()'' availability (ultrix has no one).

0.3.58 (18.02.98)

• Added context availability and data sanity checks to image parsing and document loading code.
• Fixed handling unmanageable style declarations logic. (style.c) Now Arena just ignores such statements (e.g. uparseable colours).
• Eliminated a number of bugs in colour parsing stuff (``x11.c'' and ``util.c'').
• Fixed style handling in <hr> tag parsing code (parsehtml.c). The bug was corrupting style sheet and leading to various lame effects, but the most often one was black document background.
• Corrected <hr> parameters (left/right ends) calculation in HTML parser. (parsehtml.c)
• Created CHANGES --- Arena change history. (this file :) Compiled it from Arena release announces.

0.3.57 (14.02.98)

• Fixed byte and bit order in all XImage's to LSBFirst, to simplify image handling and bug tracking. Changed all (hopefully) XImage data stream assembly code accordingly to this byte and bit order scheme. These changes fix problems with images on monochrome servers (reported by Michael Koehne <[email protected]>).
• Revised window manager related stuff, added shape to Arena default icon, fixed ``set input focus'' handler bug.
• Corrected default style sheet generated in the absence of default background (paper).

0.3.56 (30.01.98)

• This is an adaptation to new versions of auxilliary libraries zlib-1.0.8 and libpng-0.99a. As this release contains no essential changes in the Arena part of the distribution, and consists almost totally of zlib and libpng changes (possibly not complete, as those distributions contain binary files), so ``arena-0.3.56.diff'' is depreciated.

0.3.55 (24.01.98)

• Fixed textline indent calculation bug in ``EndOfLine()'' (parsehtml.c). The bug has been making textline to dissapear in infinity: e.g. see <math> formula at the top of Arena help page.
• Rearranged page scrolling scheme to squeeze ``Frame(Back|For)ward'' calls to get rid of a couple of global variables and achieve slightly better perofrmance. (display.c & html.c)
• Fixed events mask set in ``EditChar()'' (status.c).

0.3.54 (18.01.98)

• Browsing history has been GREATLY advanced:
  • implemented various history schemes and
  • added new ``--history (none|chain|delete|semi)'' command line option to control history behaviour,
  • made the history popup menu show the ``current'' position.
  These wonderfull features have been added by Gregory L. Kaup.
• Removed an unnecessary call to ``displaydoc()'' in the editor stuff. Gregory L. Kaup.
• Added ``--noflyby-hints'' command line option to suppress hints. Gregory L. Kaup.
• Added W3C libwww version 5.1 detection to ``configure'' script. Adam J. Richter.
• Added necessary GC mask resets at the end of ``PaintTextField()'', ``PaintButtonField()'', ``_displayRawDoc()''.
• Made ``ToggleView()'' get the doc via parameter, instead of global.
• Fixed doc display win cache offset calculation bug.
• Corrected doc displaying scheme to enlive cacheing.
• Totally rewritten horizontal movement stuff.

0.3.53 (18.12.97)

• An outstanding improvement has been made to browsing history stuff. Now Arena records documents in history along with their view points and URL fragment identifiers. Gregory L. Kaup.
• Fixed scrollbar bugs. Restored mouse led docs scrolling ability.
• Enlived Arena window resizing (broken by recent changes).
• Revised Arena status line stuff. Now status line is the status window itself.

0.3.52 (01.12.97)

• now all Arena window main elements have their own subwindows,
• given up PixelIndent and PixelOffset global variables, now use `ViewWindow' geometry instead. This change is intended to simplify and clear up code structure. Hope this will make easier `clone' feature implemention in the future.
• document dipslay area cacheing appears to begin operating now.

0.3.51 (24.11.97)

• Global change in Arena window drawing architecture. Status bar, toolbar, iconbar, display window, scrollbars moved to their own separate subwindows.
• Besides the megachanges described above, the release also contains a ``simple patch to control arena when going to a #tag near the end of a document'' by Gregory L. Kaup.

0.3.50 (12.11.97)

• Added inernationalization (i18n) stuff. Based on GNU gettext tools and intl library. Gregory L. Kaup
• Fixed (probably) uninitialized memory acces bug in HTML parser. Steffen Zahn.

0.3.49 (01.11.97)

• Splendid ``fly by hints'' feature has been added. Hope these tips will help Arena users to become acquanted with toolbar buttons. Gregory L. Kaup.
• Steffen Zahn has pointed out anf fixed a number of UMR (uninitialized memory read) bugs in util.c and html.c.
• Changed <body> background style evaluation and backround paper drawing schemes. These changes (intended to optimize background painting) will probably reveal bugs in stylesheet stuff, so bug reports would be extremely valuable for stabilization...

0.3.48 (24.10.97)

• Fixed numerous bugs in painstream generation code (parsehtml.c), including bugs in composing frame header, computing document total height, composing paintstream for image documents.
• Revised Arena paintstream painting scheme to squeeze code redundancy. Also changed background/paper painting sequence.
• Made background paper generation stuff use Arena image processing functions.
• Fixed a background tile/stipple origin coords calculation bug in DisplayHTML().
• Fixed a tiny bug in transparent gif images parsing stuff.

0.3.47 (21.10.97)

• Taken away extremely dangerous system() calls in external communcations stuff, now use SpawnSystemCommand(). Gregory L. Kaup!
• Fixed a bug in background (main) frame composing code (parsehtml.c). That was the one that has been causing eventual segmentation violations (actually a recursion deadloop and memory exhaustion) and crashes in FrameBackward().
• Corrected a lame typo in arena.h.in, which has been effectively disabling colour border style stuff.
• Fixed bug in parsing <pre></pre> code, that has been messing paintstream and later panic exit.
• Corrected XK_Enter key press handling in <tetxarea> form field editing stuff.
• We would like to thank Steffen Zahn for the extensive job on Arena testing he has done and for his detailed bug reports, which have been extremely helpfull for debugging.

0.3.46 (16.10.97)

• Fixed the problem reported by Clare Johnstone (no edit of specified URL). Gregory L. Kaup.
• Fixed 2 memory freeing problems in new spawning stuff... Gregory L. Kaup.
• Now have SpawnChild() working with PIPES for I/O/E streams. Use this to replace system() in the PRintDoc() routine. NO Temporary FIle USED now! Gregory L. Kaup.
• Did away with the GLOBAL variable for SpawnGUI testing. Gregory L. Kaup.
• Fixed the bookmark stuff to allow ASYNC spawning of multiple sorts. Gregory L. Kaup.
• Adapted Steffen Zahn patch (adapting spawn.c to libwww-5.1b API) to new spawn stuff. Gregory L. Kaup.
• Improved ClientMessage X event handler to make it able to handle `delete window' events (e.g. from window manager) properly. Stephen McCamant.
• Added background colour to Arena window. Stephen McCamant.
• Corrected image documents handling scheme. This fixes segmentation violation bug in image scrolling code. Stephen McCamant.
• Adapted spawn stuff to libwww-5.1b API (also see above). Steffen Zahn.
• Added important sanity check to `ASCENT(font)' macro in parsehtml.c stuff. Steffen Zahn.
• Corrected <center> test </center> buggy behaviour. Pavel Roskin pointed it out and gave the idea of bugfix.
• Hopefully fixed `white space skipping between two adjacent anchors' problem pointed out by Clare Johnstone.
• Corrected libwww URLs in README. Pointed out by Clare Johnstone.

0.3.45 (06.10.97)

• Child spawning has been greatly improved. Created various spawning modes of various extent of synchronicity and dependence (see `spawn.c'). Gregory L. Kaup.
• Added new feature to `-debug' command line option: Now Arena understands `0xXX' and `XX' hex debug flags values as well as ``natural'' descriptions: ``BRIDGE|VERBOSE''. Gregory L. Kaup <[email protected]>.
• Corrected offset to pointer to background style in paintstream frame header calculation in MoveVDisplay() (display.c). Fixed position calculation bug in form field focus moving code (html.c).
• Corrected frame recursion scheme in DrawAnchor() and WhichObj() (html.c).
• Code style cleanup: moved all global variables declarations (as external) to appropriate header files.

0.3.44 (01.10.97)

• Fixed (?) a core dump bug (reported by William L. Sebok) in status message displaying stuff. Although the changes made should fix the problem, they have not been actually tested (have no access to Solaris 2.5, or any other libc with *printf functions that core dump on NULL string arguments).
• Substituted (hopefully) all numeric offset/length constants in paintstream handling code by proper preprocessor pragmas. Also substituted explicit paintstream pushes and pops by calls to appropriate functions (or macros). Hope this makes the code more managable/understandable, clear, clean, flexible and portable.
• Fixed (again, hopefully) a bug recently reported by Stephen McCamant (incorrect paintstream handling).

0.3.43 (27.09.97)

• Added libwww -- user interaction ability. This means:
  • Extensive rearrangement/rewrite of user dialog stuff (asking for URLs, filenames, usernames/passwords, confirmation). The new approach isn't very elegant, but it works with libwww, that's why I tend to consider it to be better than the old one.
  • A bit more detailed progress monitoring.
  • Ability to handle access control enabled pages.
  • Ability to save documents downloaded by ftp.
  • A number of new bugs. %-) Bug reports are welcome!
  The dialogs currently are bit esoteric (some prompts are dumb), and user should be smart enough to guess what does Arena actually prompts for.

0.3.42 (21.09.97)

• Fixed editor crashes on bad HTMLs. Gregory L Kaup <[email protected]>.
• Removed a number of memory leaks caused by improper use of HTLists stuff. Gregory L Kaup <[email protected]>.
• Improved HTML errors flagging/tracing stuff. Gregory L Kaup <[email protected]>.
• Cleaned up and improved scrollbar-drawing code, made a zero scrollbar thickness work reasonably as expected. Stephen McCamant <[email protected]>.
• Updated Arena manpage (Arena/doc/arena.man) file to reflect recent chnages and converted it to HTML (arena.man.html). Gregory L Kaup <[email protected]>.
• Created Arena manual in SGML. The document is designed for using with sgml-tools (``linuxdoc'' DTD).
• Created (from scratch) XBM file parser (parses XBM to data). The main goal here is security, rather than performance. New LoadXBMimage is believed to be more steady than the old one and standard X11 routine (X11 RdBitF.c appears to be extremely insecure, full of possibilities for buffer overruns (smashing the stack)). Nevertheless the new routine code requires stress-testing and proofreading to find out possible security problems.

0.3.41 (17.09.97)

• Implemented internal & external jumps to fragments in HTMLs (i.e. click on anchor <a href=&dquot;#INTRODUCTION&dquot;> and actually go to a place labeled <a NAME=&dquot;INTRODUCTION&dquot;> :) Greg Kaup <[email protected]>!
• Added an option (command line / configuration file) to control Arena scrollbars thickness. Stephen McCamant <[email protected]>.
• Fixed a bug in scrollbar handling in the zooming code. Stephen McCamant <[email protected]>.
• Added autoconfiguration time check for libXpm availability and a stuff to use it instead of aRena own xpm code.

0.3.40 (08.09.97)

• Fixed a buffer overrun on short interlaced gifs (gif.c). Stephen McCamant <[email protected]>.
• Added many switches (spelling, abbreviations, etc.) to Arena command line options list. Gregory L. Kaup!
• Added new level of Arena configurabilty: configuration file (arenarc). Along-long waited feature... Greg Kaup <[email protected]>.
• Changed invalid tags handling scheme in HTML tags recognition code. Stephen McCamant (idea), and Gregory L. Kaup (implementation).
• Added `configure' option to control configuration file location.
• Fixed crashes on unfinished <DL> lists at the ends of HTML documents.

0.3.39 (01.09.97)

• Rearranged and improved command line parsing stuff. (see `main.c' Greg Kaup <[email protected]>.
• Also added <applet> tag support to HTML parser and a stuff for future Java(tm) applets support! Although the stuff is alpha and isn't enabled by default, gives us hopes for future... :) Greg Kaup <[email protected]>.
• Fixed a bug in HTML parser which has been dumping core on some invalid tags. Stephen McCamant <[email protected]>.
• Stephen McCamant also suggested an optimization to transparent images handling code. I have not merged this to Arena code yet, but put it (arena-0.3.X.GC-mask.diff.gz) to `tmp/' subdirectory of main Arena FTP directory. Please, give this optimizing patch a try on various transparent images (XPMs or GIFs) and let us know what do you think about it (feedback to the developers list).
• Moved all public ``HTAtom*''s to bridge.h. Just to improve code style.

0.3.38 (23.08.97)

• Gregory L. Kaup <[email protected]> has created manpage for Arena!
• Gregory L. Kaup mproved the bookmark stuff.
• Substituted all strlen() occurences by Arena_StrLen(). The latter is a simple wrapper to handle NULL argument. The substitution has been initiated by Alan Richter <[email protected]> report of the bug and bugfix patch.
• Substituted all [cm]alloc() occurences by Arena_[MC]Alloc(). The latter is a wrapper to handle memory allocation failures. It gets one more argument (of Bool type) which controls if the program should exit on failure.

  Nota Bene

  All occurences have ``False'' as the ``exit_on_fail'' argument. They all are to be thoroughly revised!

• Slightly cleaned up code in `image.c' --- squeezed double code in ProcessProgressiveImage().
• Fixed bug in the PNG handling stuff: display depth has been handled incorrectly. Now Arena is beleived to be able to process PNG images for various display depths (checked for 8 and 16).

0.3.37 (14.08.97)

• RecognizeTag routine (parsehtml.c) has been rewritten from scratch. The new implementation is much better and more simple. Gregory L. Kaup <[email protected]>.
• Fixed transparency mask bitmaps on depths > 8 (image.c). Stephen McCamant <[email protected]>.
• Code cleanup: removed all `BOOL' ``type'' occurences, replaced them by `Bool' borrowed from X11.
• Fixed (I hope) a bug in HTML parser which has been causing segmentation faults on HTML documents with incorrect mixture of lists and items of different types at the end of the document. (Try <ul><dt>crash</ul></body></html> with 0.3.36 :)

0.3.36 (10.08.97)

• Fixed annoying bugs in Arena debug stuff (bugs in debug... :) which were causing segfaults. Gregory L. Kaup <[email protected]>.
• Slightly changed WWW_HOME environment variable handling scheme. Now Arena will ignore it if it is empty.
• Fixed a minor bug in status reporting code (status.c). The bug could probably cause incorrect status string displaying, but it has been caught thanks to gcc warning. :)
• Fixed a bug (it's stupidity is pretty shocking) in document freeing code in ``terminate handler'' after filter (bridge.c). The bug has been pointed out by Ulrik Vieth <[email protected]>.
• Added sanity check to HTML paintstream displaying code (html.c) for safety. This does not correct the HTML parser and painter but just avoid segfaults, i.e. it's just a temporary workaround to avoid crashes on lame HTML documents. The bug has been reported by Jon Schewe <[email protected]>.
• Corrected X11 events improper masking in images displaying code (x11.c). The bug has been causing documents redrawing deadloops if image displayed has been smaller than rectangle defined by <img> width and height attributes. The bug has been reported by (in chronological order):
  • Adam J. Richter <[email protected]>,
  • Dave Davey <[email protected]>,
  • Jon Schewe <[email protected]>.
• We would like to thank
  • Jon Schewe <[email protected]>,
  • Dave Davey <[email protected]>,
  • Dave Eaton <[email protected]>,
  • Ulrik Vieth <[email protected]>
  for their efforts on Arena testing, bug reports and advices.

0.3.35 (08.08.97)

• Reorganized ArenaLDFLAGS environment variable structure used as linker flags at Arena linking stage (makefile), so that LDFLAGS and ``-L'' flags go first (before ``-l'' flags). This is necessary to make happy some (not so smart) linkers. The problem has been reported by Dave Eaton <[email protected]>.
• Fixed a couple of bugs which were breaking ANSI compliance of the Arena C code and thus leading to compile time errors for strict ANSI C compilers. These bugs have been pointed out and corrected by Dave Eaton <[email protected]>.
• Enabled (reenabled) Arena own documents (memory) cache (bridge.c). At the moment this should be considered as w3c-libwww-5.0a cacheing disability workaround (Arena should use libwww cache!).
• Fixed geometry calculation (to be more accurate: dependency) bug in the toolbar stuff (toolbar.c).
• Fixed a tiny bug inserted in 0.3.34 which has been messing up colours management (image.c).
• Squeezed out repeating code in the history stuff (history.c).

0.3.34 (25.07.97)

• Added XBM images transparency.
• Cleaned a bit and slightly stylized the status bar stuff code.
• Added toolbar buttons' icons.

0.3.33 (21.07.97)

• Done away with temporary HTML files in the bookmark stuff. Gregory L. Kaup <[email protected]>.
• Fixed annoying bug in `util.c' dealt with freeing passwd structure returned by getpwuid()/getpwnam() functions. The bug and proper approach have been pointed out by Luc St-Louis <[email protected]>.
• Added transparent XPM images support.

0.3.32 (11.07.97)

• Cleaned up and improved the cache locating code, added various sanity and security checks to it. Gregory L. Kaup <[email protected]>.
• Updated PNG library. Now Arena uses libpng-0.96. That's why no diffs are provided this time.

0.3.31 (01.07.97)

• The CacheRoot and TmpDir stuff have been fixed (to some extent). Gregory L. Kaup <[email protected]>.
• Extracted BookMarx stuff constants initialization code into BMinit() which is now called in the main Arena initialization sequence. This has been done to avoid entering BM fucntions while the before constant parameters have been initialized.
• Fixed a stupid bug in command line parsing code (main.c), namely in the part dealt with libwww trace flags.
• Corrected URL expansion in <isindex> ``form''s submission code.
• Cleaning up: moved ``debug'' variable declaration into the ``debug.h''.

0.3.30 (25.06.97)

• Added new document load method ``pseudoLoadAnchor()''. The function is analogous to ``libLoadAnchor()'', it ``loads'' a document from a memory buffer and takes the neccessary actions to register and display it properly. This function is intended to be used for ``loading'' internal documents instead of using temporary files.
• Removed temporary files usage from ``mailto:'' type URLs support code. Now use aforementioned pseudoloading mechanism.
• Fixed a couple of tiny bugs in ``mailto:'' URLs support stuff. Now ``Return-Receipt-To:'' and ``X-Priority'' checkboxes are believed to be handled correctly.
• Moved ``mailto:'' anchors loading interception point from ``OpenDoc'' to ``libGetDocument'' --- this is considered as more stylistic.
• Moved ``mailto:'' forms submission interception point from GUI stuff to forms submission code.
• Introduced one more private form access method ``MAILTO'' for mail forms. Use this method to distinguish ``mailto:'' forms from normal ones, intercept the form and get appropriate actions instead of standard submission sequence.

0.3.29 (19.06.97)

• Changed document registering scheme in ``libLoadAnchor()'' (bridge.c). Now document is recorded in the history before loading (call to ``HTLoadAnchor()'') and is deleted if load fails.
• Changed document ``historical state'' (state in a history list) type from int to enum (history.c).
• Changed form access methods type from int to enum (forms.c).
• Added checks for access method coincidence in FindForm() (forms.c).
• Added <isindex> PROMPT attribute recognition to the <isindex> parsing code (parsehtml.c).
• Added private non-standard access ``method'' ISINDEX to HTTP methods in order to discern <isindex> ``forms'' in forms handling code. (Originally these ``forms'' have been distinguished by special form name ``<ISINDEX>''.)
• Improved HTML comments handling code in parsehtml.c, now Arena handles both HTML (``<!--...-->'') and SGML (``<!...>'') comments.
• Cleaned up and improved <TEXTAREA> form fields parsing code in parsehtml.c, now Arena parses <textarea>...</textarea> container contents and use it as the field initial value (HTML3.2 compliant).
• Included patch for w3c-libwww-5.0a. The patch adapts libwww direct WAIS access support code to the current libwww context. The patch is in ``Auxiliary/w3c-libwww.5.0a.WAIS.QL.diff''. Read README.wais file in the ``Auxiliary/'' subdirectory for details.

0.3.28 (14.06.97)

• Added ability to bookmark the ``mailto:'' entry form. Gregory L. Kaup <[email protected]>.
• Added some signal handling around the forking to run sort int the bookmark stuff. Gregory L. Kaup <[email protected]>.
• Fix BAD HTML flag in the bookmark stuff. <[email protected]>. Gregory L. Kaup <[email protected]>.
• Improved stability of HTML editing stuff (editor.c): took care of many possible NULL pointers and allocated memory problems that appeared with very large HTML buffers and file permission failures. Gregory L. Kaup <[email protected]>.
• Added HTML title to mail editing HTML form (``mailto:'' URLs handling stuff). Gregory L. Kaup <[email protected]>.
• Added stuff to use direct WAIS access support of the W3C Reference Library. It just means that Arena now uses WAIS access features of libwww. Regretfully, libwww appears to have 2 years old WAIS stuff, which doesn't operate correctly in the context of modern libwww.
• Fixed a few bugs in checkbox form fields handling code. (Now multiple checkboxes with the coincident names are believed to be handled corerctly.)
• Added code to handle document load request rejection (bridge.c).

0.3.27 (10.06.97)

• Rearranged, cleaned up and optimized HTML forms editor code.
• Added keyboard driven editors for the most of form input fields.
• Fixed a typo bug in ``WindowButtonDown()'' (html.c) which has been causing considerable misbehaviour (a really esoteric one).

0.3.26 (01.06.97)

• Added ``mailto:'' URL's support. Gregory L. Kaup <[email protected]>.
• Added ability to switch between form textfields (use TAB key). Note: the code is far from satisfactory yet.

0.3.25 (26.05.97)

• Improved (extended, rearranged, stylized) X resources stuff.
• Added rules to makefile to generate X resources file template (installing it to ``˜/.Xresources.Arena'').
• Added stuff to handle erroneous alpha masks in transparent images displaying code (x11.c, icon.c) to avoid X errors (and crashes).
• Fixed GraphicsExpose events mask in transparent images handling code to avoid X events deadloops.
• Improved (and fixed a bugs in) isrgb() (now util.c) and ParseColour() (now x11.c) routines to handle quoted strings properly and use X server colours database as the last resort.
• X-resources stuff has been essentially rearranged, it hasn't been proof tested yet, please be aware. Sorry for posible inconveniences.

0.3.24 (17.05.97)

• Improved bookmark stuff security doing away with dagerous ``system()'' call and using ``fork()'', ``execve()'', ``waitpid()'' instead. Gregory L. Kaup <[email protected]>.
• Deleted newlines (before and after) in <ISINDEX> rendering. This appears to make it more flexible. Gregory L. Kaup <[email protected]>.
• Added stuff to test if local C compiler can handle a language extension (not strict ANSI) to improve autoconfiguration flexibilty and sensibility.
• Added test if C compiler is gcc and restricted some options to it (e.g. ``-Wall'' option is gcc only).
• Fixed <input> field (HTML forms) enclosed in preformatted area (<pre></pre> group) rendering bug.

0.3.23 (12.05.97)

The release mostly consists of contributions made by Gregory L. Kaup <[email protected]>.

• Improved bookmarks stuff security. Now Arena allows a few special chars through for cgi arguments. Gregory L. Kaup.
• Added new stuff to handle <ISINDEX> tag (used e.g. for searchable indexes). The new feature is extremely valuable for direct WAIS search engines access. Gregory L. Kaup.
• Fixed a bug in bridge.c which would cause segmentation fault if Arena failed to load initial document.
• Rearranged and stylized html tag recognition code in parsehtml.c.
• Fixed byte and bit orders (X pixmaps attributes) in alpha mask handling code in icon.c and image.c.

0.3.22 (28.04.97)

• Added transparent images support stuff. It is considered to be universal enough to have the ability to add transparent images support for any image types.
• Rearranged gif stuff: merged gif handlers (RaadImage* functions in gif.c) for 12bit, 16bit, and 24bit depths into one.
• Fitted gif images handling code to the transparent images support stuff, so now Arena is believed to operate transparent gif's correctly.

0.3.21 (25.04.97)

• Fixed non-in-line images handling code. Now Arena is believed to be able to display images as main docs.
• Fixed history handling for documents displayed as main docs, which have been previously loaded as inlines (e.g. images).
• Added code to update anchor (meta) information from response HTTP (MIME) headers --- this probably should be done by libwww (but actually is not).
• Added image mask handling in paintstream (for future alpha channel support for transparent images).
• Partially discarded changes to <hr> parsing/displaying code, as it was broking math formulae rendering (<over> tag).

0.3.20 (18.04.97)

• Fixed bugs in ``configure.in'' and history handling code. The bugs pointed out and fixed by Juergen Ruehle <[email protected]>.
• All SI_* and SE_* symbols has been changed to ArenaSI_* and ArenaSE_* to avoid SI_UNKNOWN (style_types.h) symbol clash with <sys/siginfo.h> stuff on HP-UX 10.10. Pointed out by Otmar Stahl <[email protected]>.
• Made configure not to look for auxilliary libraries header files, if correspondent library hasn't been found among standard libraries.
• Moved document states (DOC_*) from preprocessor symbols to enum type to make ``gcc -Wall'' reveal possible problems with the code.
• Cleaned up forms parsing and submission code, fixed empty/dummy options and values/labels handling to avoid possible crashes and some other weird errors.

0.3.19 (12.04.97)

• Gregory L. Kaup <[email protected]> improved Arena bookmarks stuff, fixed security problems in it, and added new functionality. Gregory L. Kaup <[email protected]>.
• Richard H. Wood <[email protected]> wrote colour name parser ParseColorName(), which is intened to be used whereever colour name parsing is needed (for the purpose of unification). Richard H. Wood <[email protected]>.
• Richard H. Wood <[email protected]> added global centering handling to Arena. Although it should be considered as preliminary, it is very important as starting point. Richard H. Wood <[email protected]>.
• Changed DEFAULT_URL by R.H.Wood. Now it points to Arena main page.
• Fixed X fonts loading scheme to enable oblique fonts. Ulrik Vieth <[email protected]>.
• Ulrik Vieth <[email protected]> also pointed out how to fix <hr> tags handling. Now Arena does draw horizontal rules for <hr>'s. Ulrik Vieth <[email protected]>.
• Fixed a bug in form input fields handling in HTML parser.
• Added <option> tags attributes handling.
• Arena code (debug stuff) was cleaned up by Ulrik Vieth, Greg L. Kaup, and R. H. Wood.

0.3.18 (07.04.97)

• NEW feature: BOOKMARKS ! Greg L. Kaup <[email protected]>
• Ulrik Vieth <[email protected]> and William L. Sebok <[email protected]> have pointed out compilation problems with Arena on Solaris and proper ways to fix them.
• Added stuff to handle ``maxlength'' option of text type form input fields.

Nota Bene

Although Arena does have the stuff for adaption to a new W3C WWW Reference Library release (libwww-5.1b), it should NOT be considered as official. I have included it just to share a progress I have made with it. It is not working well, definitely I have missed something, but I can't find out it. If you can fix it, please do it.

QingLong, <[email protected]>