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- ******************************
- ZIPSHORT v1.0
-
- modify ZIP archive containing
- non-dos compatible filenames
- by Guenter Nagler
- 1995
- (gnagler@ihm.tu-graz.ac.at)
- ******************************
-
- [1] BACKGROUND
- PKZIP is a popular archive shareware utility developed by PKWARE Inc. (TM)
- Now there are compatible tools available on several platforms.
- The differences between the file systems are the reasons that some
- zipped archives are not easily to unzip when exchanging between certain
- systems.
- Macintosh, Win95, WinNT system allow using long filenames containing
- whitespaces, :, \, and many other characters that are not allowed
- in filenames of other file systems (e.g. DOS).
- PKUNZIP for DOS does not handle this problem. It tries to write the filenames
- and if this works for unbelievable reason, the files are usually not
- accessible or simply truncated to 8 characters.
-
- Therefore I wrote this utility ZIPSHORT that parses the ARCHIVE
- headers and index and generates DOS compatible short filenames.
- It also saves an index that contains the long filenames together with the
- generated short names. ZIPSHORT modifies the zip file, but generates
- an undo file to be able to undo all modifications at later time using
- undo option.
- With further options the list of existing short filenames can be extended
- (from directory tree or from a list stored in a file). The program
- will try to use only short names that are not existing.
-
- The names modified using following methods:
- - truncate extensions to maximum 3 characters
- - remove all not compatible characters (e.g. spaces)
- - remove vowels (a,e,i,o,u) beginning at end of names until name has
- maximum 8 characters or all vowels are removed.
- - remove not alphanumerical characters beginning at end of names until name
- has maximum 8 characters or all characters are alphanumeric.
- - truncate name to maximum of 8 characters
- - (*) the name is used as is if it is unique to the list of already known short
- names
- - add iteration number 1, 2, ... to the name until the name is
- unique to list of already known short names
- - if adding the number will generate a name longer than 8 characters
- the name is truncated by a character from end of the name
- continue with (*) until a name is accepted
-
-
- [2] FILES DESCRIPTION
-
- ZIPSHORT.EXE..........MSDOS executable
- ZIPSHORT.DOC..........this file, showing usage of ZIPSHORT.EXE
- only ZIPSHORT.EXE is required to run program
-
- [3] COPYRIGHT
-
- ZIPSHORT (c) 1996 was created by Guenter Nagler.
-
- ZIPSHORT is free and may be used as you wish with this one exception:
-
- You may NOT charge any fee or derive any profit for distribution
- of ZIPSHORT. Thus, you may NOT sell or bundle ZIPSHORT with any
- product in a retail environment (shareware disk distribution, CD-ROM,
- etc.) without permission of the author.
-
- You may give ZIPSHORT to your friends, upload it to a BBS, or ftp it to
- another internet site, as long as you don't charge anything for it.
-
- [4] DISCLAIMER
-
- ZIPSHORT modifies or copies zipped archives when specifying a new filename.
- At beginning you should use the safer variant of ZIPSHORT that first
- generates a copy of the archive and modifies only the duplicate or
- keep a backup of your zip file before using it.
- Modifications to zip files usually can be undone by using -u option.
- This only works if the zip files are not modified by ZIP tools after
- using ZIPSHORT. It is not guaranteed that ZIPSHORT can handle any
- zipped archive.
-
- Use ZIPSHORT at your own risk. Anything you do with ZIPSHORT is your
- responsibility, and not the author's. Any damage caused to any person,
- computer, software, hardware, company, or business by running ZIPSHORT
- is your responsibility, and the author will not be liable.
-
- If you don't understand these terms, or are not sure of something, or
- are afraid something bad might come of using ZIPSHORT, don't use it!
- You are here forewarned.
-
- [5] INSTALLATION
-
- Simply copy ZIPSHORT.EXE in a directory that is in your path.
-
- [6] USAGE
-
- usage: zipshort [-d dir] [-f file] [-u] filename.zip [output.zip]
- -d directory all filenames existing in this directory tree are not nused
- -f file.lst all filenames in this file are not used (one filename per line)
- -u file.und undo changes
-
- The parts in brackets [...] are optional.
- Options -d and -f can be used more than once.
-
- The filename.zip must be specified and should refer to an existing zipped
- file.
-
- If output.zip parameter is ommitted the filename.zip will be modified
- if necessary.
-
- An existing output.zip will be overwritten without warning!
-
- When using the undo -u option ZIPSHORT only undo's recent modifications
- to filename.zip done by ZIPSHORT. The name output.zip is ignored by this
- option. The file filename.zip and filename.und must exist for this procedure.
-
- When not specifying output.zip parameter, ZIPSHORT modifies filename.zip,
- generates index text file filename.lst and a binary undo file filename.und
-
- When using output.zip parameter, ZIPSHORT copies filename.zip to output.zip
- modifies output.zip and generates files output.lst and output.und
-
- Options -d and -f are used to exclude a list of (short) filenames
- from being used (forces to rename a file if it has such a name).
-
- [7] EXAMPLE
-
- command> zipshort
- usage: zipshort [-d dir] [-f file] [-u] filename.zip [output.zip]
- -d directory all filenames existing in this directory tree are not nused
- -f file.lst all filenames in this file are not used (one filename per line)
- -u file.und undo changes
-
- You get the usage text when starting zipshort without parameters.
-
- command> zipshort longname.zip
- The file longname.zip will be modified if it contains zipped
- files having non-dos compatible filenames.
- The files longname.lst and longname.und will be created.
-
- command> zipshort -u longname.zip
- The program looks for longname.und and will undo modifications of
- longname.zip . The file longname.zip now is exactly as before using
- zipshort
-
- command> zipshort longname.zip shortnam.zip
- The program saves the modified zipfile to file shortnam.zip
- The files shortnam.und and shortnam.lst are generated if modifications
- are necessary.
-
- The listing file will look like:
- whnthsnt.mid When The Saints Go Marching In.mid
- thtswhtf.mid That's What Friends Are For.mid
- mrnnghsb.mid Morning Has Broken.mid
- lrdflrds.mid Lord of Lords.mid
- jshfghtt.mid Joshua Fought The Battle of Jerhico.mid
- jesslvsm.mid Jesus Loves Me.mid
- jsslvsmn.mid Jesus Loves Me in bluegrass format.mid
- grtsthlr.mid Great is the Lord1.mid
- elshadd1.mid El Shaddai1.mid
-
- After using ZIPSHORT you will usually use PKUNZIP or a similiar program
- to extract the files from the archive:
-
- command> pkunzip longname.zip
- Searching ZIP: LONGNAME.ZIP
- Inflating: whnthsnt.mid
- Inflating: thtswhtf.mid
- Inflating: mrnnghsb.mid
- Inflating: lrdflrds.mid
- Inflating: jshfghtt.mid
- Inflating: jesslvsm.mid
- Inflating: jsslvsmn.mid
- Inflating: grtsthlr.mid
- Inflating: elshadd1.mid
-
- See documentation of PKUNZIP for details.
-
- Use the content of longname.lst to remember the original name of an extracted
- file.
-
- command> zipshort -d l:\midi longname.zip
- directory l:\midi: 3568 filenames excluded
-
- This command will zipshort force to have a look at directory l:\midi
- (and its subdirectories). It will get all existing filenames and
- tries not to use them when modifying filenames. Instead it will
- add a number to make the short filename unique.
-
- command> zipshort -f l:\midi\index.lst longname.zip
- directory l:\midi\index.lst: 3553 filenames excluded
-
- ZIPSHORT will read the given textfile index.lst and load all
- filenames from this file. These names will not be used when
- modifying filenames.
-
- The file listing should look like:
- aftersun.mid After the Sunrise (Yanni)
- aftrlove.mid After The Love Has Gone (Earth Wind & Fire)
- aftrmid.mid After Midnight (?)
- agadou.mid Agadou (?)
- again.mid Again (Janet Jackson)
- againodd.mid Against all odds (Phil Collins)
- aganstwd.mid Against the Wind (Bob Seger)
-
- Each line contains a filename at beginning of the line, the rest of the line
- is ignored and could contain comment etc.
-
- Options -d and -f can be used together and more than once (e.g. exclude
- filenames of different directories).
-
- [8] SUGGESTIONS / COMMENTS / BUG REPORTS
-
- WWW: http://hgiicm.tu-graz.ac.at/Cpub
- EMAIL: gnagler@ihm.tu-graz.ac.at
-