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================================ For UnZip 6.1/who knows: ================================ o add extraction support for other compression algorithms used by new PKZIP, WinZIP, 7-Zip versions - LZMA, compression type 14 (most important, because of its efficiency) - PPMd, compression type 98 (maybe, less important) - WavPacked, compression type 97 (maybe, less important) LZMA is first-level priority for 6.1, other formats may be taken into consideration o add support for reading AES encrypted archives - WinZIP format (priority 1) - PKZip format (priority 2) top level item for 6.1 o add multi-part zipfile handling major feature for 6.x! could happen for 6.1 o better support for multilingual uses and different codepages; support unicode (UTF-8 coded) filenames and comment texts a requested feature getting more and more important, - partially done for the Windows port in 6.0 (support restricted for chars of the current system codepage) - partially done (beta state) for Unix (requires native codepage to be UTF-8) o complete support for UTF-8 coded entry names (and comments) - add new "win32_wide" port to extend unicode support on Windows beyond the restrictions of the current (ANSI) system codepage - revise/extend the WinDLL interface to allow passing of "wide" string argument data - add simple built-in character translation between UTF-8 and the old (ISO-8851-1 / IBM850) code pages to allow old systems without standard UTF-8 support to read UTF-8 encoded archives. - extend the built-in translation tables to support other language regions besides "Western_Latin1" (e.g. Russian-kyrillic, Japanese, Chinese) - streamline the multilingual codepage and UTF-8 support for the UNIX port (standard codepage translation facility?, like WideChar<->AnsiCP translation functions under MS Windows) should happen for 6.1 (there is internal alpha-state code for better "wide" support on Windows available at the time of the 6.0 release) o revise the "extended charcodes" handling in decryption password to support UTF-8 encoding on Unicode-aware systems where the "native" character coding is NOT UTF-8 (e.g. Windows). o revise the command line interface for more compatibility with Zip' command parser - implement the versatile command parser from Zip 3.0. - add "long option" definitions for all existing options; revise the UnZip user manual to document the long-option alternatives. - add support for reading the "process these entries" and the "skip these entries" pattern lists from a file (or from separate files ?). - add a (long) option to switch off UnZip's internal pattern matching on filename arguments. probably in 6.1, (first prototype of the revised command parser was available at the time of the 6.0 release) o add command line options for miscellaneous features requested by users and/or development team members: - display the Info-ZIP software license - more fine-tuning for file attributes set/restored at extraction, like: set/clear archive attribute on DOS/OS2/WIN32; apply/skip standard or user-defined umask filter on UNIX (& Unix-alike) - additional time-stamp related processing filters - more listing display modifications - overriding the default date-time display style - ... All these options are of minor importance and/or would collide with existing "one-character" options. The current UnZip maintainer does not want to reserve any of the few not-yet-occupied short option characters. for one of these features. So, any implementation effort for items of this feature wish-list has to be delayed until the "long option" support of the revised command line parser becomes available. some option may get implemented in 6.1 o support for and/or development team members: o add new low-level, binary API; rewrite "normal" (command-line) UnZip to use it maybe soon (maybe 6.1) o MSDOS/WIN32/others: detection of "reserved" names (= names of character devices, or system extensions that look like a characters device driver) at runtime; with the goal of emitting "meaningful" error messages and/or rename queries. (Currently, these reserved names are catched as "non-deletable files". On MSDOS and WIN32, when the RTL stat() function allows to identify character devices, the "reserved" names are automatically prefixed with an underscore.) o redesign "file exists -- is newer/older -- overwrite/skip/rename" logic in extract.c and the corresponding system specific mapname() services; to prevent superfluous decryption key prompts for entry that will be skipped, later. o rewrite to use fread/fseek/etc. [eventually: test write(bytes) vs. fwrite(words), especially on Crays/Alphas] soon (probably in conjunction with multi-part handling) o incorporate new backfill version of inflate() wait for zlib version o check NEXTBYTE for EOF in crypt.c, funzip.c and explode.c, too whenever o add option to force completely non-interactive operation (no queries for overwrite/rename, password, etc.); also allow some sort of non- interactive password provision? (file? command-line? env. variable?) someday? o add testing of extra fields (if have CRC) later o rewrite to allow use as a filter way, way later... o add Unix hard-link support? way, way later... o add ".ini" file support as a (more elaborate) alternative to the presently supported preconfiguring abilities via special environment variables (UNZIP on many systems...)? way, way later (if ever)... o add option to search zipfile contents for a string and print the results? ("zipgrep" option--e.g., unzip -g or unzip -S) (easy for fixed strings, hard for wildcards/true regex's) way, way later, if at all...probably use libregex o add -y "display symlinks" option to zipinfo? various sorting options? (-St date/time, -Sn name)? who knows o add "in-depth" option to zipinfo? (check local headers against central, etc.)--make it a better debugging tool (or just create zipfix) who knows (zip -F, -FF already exist) Some maintenance or OS specific topics for 6.0 release: * add "unix-style-path -> partitioned-dataset filename" conversion to MVS port * should we add support for (null) entry names (empty entry name field), to conform to the PKWARE specification? ======================================= Requested features: - extract or exclude on basis of UID [Armin Bub, Armin.Bub@bk.bosch.de, 970904] ======================================= o miscellaneous little stuff: whenever -------------------------- - change DOS -f/-u stuff to use DOS API for getting filetimes, not stat() - add (-N?) option to lose all user input and/or switch to "(*input)()" function, replaceable by UzpAltMain() param - add -@ option to read from stdin (zip) or from file (PKZIP)? (go32 built-in) - add -oo option to overwrite OS/2 and DOS system and hidden files, too - add option to compute MD5 checksum on files and/or on entire zipfile? - decide whether to use WinGUI "skipping" diagnostics in extract.c - combine "y/n/A/N" query/response stuff into unified section with query function(s) (InputFn?) - disable ^V code in remaining mapname() routines - change filename-matching logic so case-insensitive if case-sensitive fails? - allow multiple dir creation with -d option? [Bob Maynard] - use gcc -pg, gprof to do profiling on unzip - Doug Patriarche (doug.patriarche.bvdhp01@nt.com) Northern Telecom Canada Ltd. "I need to do a port of zip/unzip for Wind River Systems' VxWorks OS" [GRR: 15 March 95 -> "early June"] Features from old BUGS file (mostly duplicates of other entries above): - ignore case for internal filename match on non-Unix systems, unless file- specs enclosed in single quotes - modify to decompress input stream if part of a pipe, but continue using central directory if not (BIG job!)--extended local header capability - add zipinfo option(s) to sort alphabetically, by date/time, in reverse, etc. - when listing filenames, use '?' for non-printables? [Thomas Wolff, 92.6.1] - add zipinfo "in-depth" option? (check local vs. central filenames, etc.) - create zipcat program to concatenate zipfiles - add -oo option (overwrite and override)? no user queries (if bad password, skip file; if disk full, take default action; if VMS special on non-VMS, unpack anyway; etc.) - add -Q[Q[Q]] option (quiet mode on comments, cautions, warnings and errors)? forget -oo, or make synonym? Default level -Q?
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