Shortcomings

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Suggested Projects for Improving GNU `diff' and `patch'
=======================================================

   One should be able to use GNU `diff' to generate a patch from any
pair of directory trees, and given the patch and a copy of one such
tree, use `patch' to generate a faithful copy of the other.
Unfortunately, some changes to directory trees cannot be expressed using
current patch formats; also, `patch' does not handle some of the
existing formats.  These shortcomings motivate the following suggested
projects.

Changing Structure: Handling changes to the directory structure.
Special Files: Handling symbolic links, device special files, etc.
Unusual File Names: Handling file names that contain unusual characters.
Arbitrary Limits: Patching non-text files.
Large Files: Handling files that do not fit in memory.
Ignoring Changes: Ignoring certain changes while showing others.

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