If the input filename is "new" then an empty package is created. If the output filename is missing, then it is automatically generated from the input filename. If the input filename ends with an l, b, or e matching its platform properties, then the output filename will contain the letter from the "-t, --type" option.
This tool can also be used to just swap a single ICU data file, replacing the former icuswap tool. For this mode, provide the infilename (and optional outfilename) for a non-package ICU data file. Allowed options include "-t, -w, -s" and -d . The filenames can be absolute, or relative to the source/dest dir paths. Other options are not allowed in this mode.
"-h, -?, --help" Print help about usage and exit.
"-tl, --type" " l" Output for little-endian/ASCII charset family. The output type defaults to the input type.
"-tb, --type" " b" Output for big-endian/ASCII charset family. The output type defaults to the input type.
"-te, --type" " e" Output for big-endian/EBCDIC charset family. The output type defaults to the input type.
-c, --copyright Include the ICU copyright notice in the resulting data.
"-C, --comment" " comment" Include the specified comment in the resulting data instead of the ICU copyright notice.
"-a, --add" " list" Add items from the list to the package. The list can be a single filename with a .txt file extension containing a list of item filenames, or an ICU .dat package filename.
"-r, --remove" " list" Remove items from the list from the package. The list can be a single filename with a .txt file extension containing a list of item filenames, or an ICU .dat package filename.
"-x, --extract" " list" Extract items from the list from the package. The list can be a single filename with a .txt file extension containing a list of item filenames, or an ICU .dat package filename.
"-m, --matchmode" " mode" Set the matching mode for item names with wildcards.
"-s, --sourcedir" " source" Set the source directory to source . The default source directory is the current directory.
"-d, --destdir" " destination" Set the destination directory to destination . The default destination directory is the current directory.
"-l, --list" List the package items to stdout (after modifying the package).
Items for removal or extraction may contain a single * wildcard character. The * matches zero or more characters. If "-m, --matchmode" " noslash" is set, then the * character does not match the / character.
Items must be listed relative to the package, and the "--sourcedir" or the "--destdir" path will be prepended. The paths are only prepended to item filenames while adding or extracting items, not to ICU .dat package or list filenames.
Paths may contain / instead of the platform's file separator character and are converted as appropriate.