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patch 8.1.0360: using an external diff program is slow and inflexible

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Problem:    Using an external diff program is slow and inflexible.
Solution:   Include the xdiff library. (Christian Brabandt, closes #2732)
            Use it by default.
This commit is contained in:
Bram Moolenaar
2018-09-10 17:51:58 +02:00
parent 93a1df2c20
commit e828b7621c
42 changed files with 5385 additions and 218 deletions
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9
runtime/doc/diff.txt
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@ -39,7 +39,9 @@ The second and following arguments may also be a directory name. Vim will
then append the file name of the first argument to the directory name to find
the file.
This only works when a standard "diff" command is available. See 'diffexpr'.
By default an internal diff library will be used. When 'diffopt' or
'diffexpr' has been set an external "diff" command will be used. This only
works when such a diff program is available.
Diffs are local to the current tab page |tab-page|. You can't see diffs with
a window in another tab page. This does make it possible to have several
@ -344,8 +346,9 @@ between file1 and file2: >
The ">" is replaced with the value of 'shellredir'.
The output of "diff" must be a normal "ed" style diff. Do NOT use a context
diff. This example explains the format that Vim expects: >
The output of "diff" must be a normal "ed" style diff or a unified diff. Do
NOT use a context diff. This example explains the format that Vim expects for
the "ed" style diff: >
1a2
> bbb