如何在 VI 编辑器中标记/突出显示重复行？

如何标记缓冲区中与其他行完全重复的所有行？标记它们，我的意思是突出它们或添加一个字符或其他东西。我想保留缓冲区中行的顺序。

以前:

foo
bar
foo
baz

之后:

foo*
bar
foo*
baz
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Run through the list once, make a map of each string and how many times it occurs. Loop through it again, and append your * to any string that has a value of more than one in the map.

小开

Try:

:%s:^\(.\+\)\n\1:\1*\r\1:

Hope this works.

Update: next try.

:%s:^\(.\+\)$\(\_.\+\)^\1$:\1\r\2\r\1*:
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最佳答案

As an ex one-liner:

:syn clear Repeat | g/^\(.*\)\n\ze\%(.*\n\)*\1$/exe 'syn match Repeat "^' . escape(getline('.'), '".\^$*[]') . '$"' | nohlsearch

This uses the Repeat group to highlight the repeated lines.

Breaking it down:

  • syn clear Repeat :: remove any previously found repeats
  • g/^\(.*\)\n\ze\%(.*\n\)*\1$/ :: for any line that is repeated later in the file
    • the regex
      • ^\(.*\)\n :: a full line
      • \ze :: end of match - verify the rest of the pattern, but don't consume the matched text (positive lookahead)
      • \%(.*\n\)* :: any number of full lines
      • \1$ :: a full line repeat of the matched full line
    • exe 'syn match Repeat "^' . escape(getline('.'), '".\^$*[]') . '$"' :: add full lines that match this to the Repeat syntax group
      • exe :: execute the given string as an ex command
      • getline('.') :: the contents of the current line matched by g//
      • escape(..., '".\^$*[]') :: escape the given characters with backslashes to make a legit regex
      • syn match Repeat "^...$" :: add the given string to the Repeat syntax group
  • nohlsearch :: remove highlighting from the search done for g//

Justin's non-regex method is probably faster:

function! HighlightRepeats() range
let lineCounts = {}
let lineNum = a:firstline
while lineNum <= a:lastline
let lineText = getline(lineNum)
if lineText != ""
let lineCounts[lineText] = (has_key(lineCounts, lineText) ? lineCounts[lineText] : 0) + 1
endif
let lineNum = lineNum + 1
endwhile
exe 'syn clear Repeat'
for lineText in keys(lineCounts)
if lineCounts[lineText] >= 2
exe 'syn match Repeat "^' . escape(lineText, '".\^$*[]') . '$"'
endif
endfor
endfunction


command! -range=% HighlightRepeats <line1>,<line2>call HighlightRepeats()
小开

Why not use:

V*

in normal mode.

It simply searches all matches of current line, thus highlighting them (if the setting is enabled, which I think it's the default) Besides, you can then use

n

To navigate through the matches

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None of the answers above worked for me so this is what I do:

  1. Sort the file using :sort
  2. Execute command :g/^\(.*\)$\n\1$/p
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  1. :sort and save it in file1.
  2. :sort u and save it in file2.
  3. gvimdiff or tkdiff the two files.

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