m (Selectively formatting individual lines. moved to Format only long lines: Page moved by JohnBot to improve title) |
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| − | |title=selectively formatting individual lines. |
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+ | |created=2006 |
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| − | You want to format/wrap long lines, but not touch shorter lines. |
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| + | In Vim, you may want to format long lines, that is, wrap long lines so the longest is, say, 80 characters. |
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| + | The standard approach is to set the local 'textwidth' option, then use <code>gq</code> to format the wanted lines. |
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| + | <pre> |
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| + | :setl tw=80 |
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| + | gggqG |
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| + | </pre> |
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| + | In the above, <code>gggqG</code> is <code>gg</code> (go to the first line) then <code>gq</code> (format) to <code>G</code> (the last line). |
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| + | That works, but it also joins consecutive short lines together although it does not join lines that are separated with an empty line. For example, this text: |
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| − | Example: for each line longer than 80 chars, run that line thru the par text formatter. |
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| + | <pre> |
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| + | hello |
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| + | world |
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| + | final |
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| ⚫ | |||
| + | </pre> |
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| + | would be formatted to: |
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| + | <pre> |
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| + | hello world |
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| + | final |
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| + | </pre> |
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| + | To wrap long lines without affecting short lines, use: |
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| − | This need arises when you cut/paste a programming snippet from your web browser into vim. |
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| + | <pre> |
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| + | :g/./ normal gqq |
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| + | </pre> |
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| + | The [[Power of g|g command]] executes <code>normal gqq</code> on each line matching <code>.</code> (any line with at least one character). The normal-mode <code>gqq</code> command then formats that line. |
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| ⚫ | |||
| + | An alternative would be to use the [[par text reformatter]]. The following replaces each line that is 80 or more characters with the result of running par. If the buffer contains 1000 long lines, this will call par 1000 times. |
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| − | See vim tip 584, on the capabilities of par. |
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| + | <pre> |
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| ⚫ | |||
| + | </pre> |
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| ⚫ | |||
| + | ==See also== |
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| + | *[[VimTip347|347 Format paragraph without changing the cursor position]] |
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| + | *[[VimTip440|440 Automatic formatting of paragraphs]] |
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| + | *[[VimTip850|850 Automatic word wrapping]] |
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| + | *[[VimTip989|989 Word wrap without line breaks]] |
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| + | :This IS better than gq with a line width of 80 because it prevents short lines without empty line between them from being concatenated! --February 3, 2016 |
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| + | ::See {{help|'formatprg'}}. You could probably get the best of both worlds. --[[User:Fritzophrenic|Fritzophrenic]] ([[User talk:Fritzophrenic|talk]]) |
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| − | C52MKIV--AT--hotmail.com |
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| − | , February 16, 2006 5:55 |
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| − | ---- |
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| − | <!-- parsed by vimtips.py in 0.504866 seconds--> |
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Revision as of 03:20, 4 February 2016
In Vim, you may want to format long lines, that is, wrap long lines so the longest is, say, 80 characters.
The standard approach is to set the local 'textwidth' option, then use gq to format the wanted lines.
:setl tw=80 gggqG
In the above, gggqG is gg (go to the first line) then gq (format) to G (the last line).
That works, but it also joins consecutive short lines together although it does not join lines that are separated with an empty line. For example, this text:
hello world final
would be formatted to:
hello world final
To wrap long lines without affecting short lines, use:
:g/./ normal gqq
The g command executes normal gqq on each line matching . (any line with at least one character). The normal-mode gqq command then formats that line.
An alternative would be to use the par text reformatter. The following replaces each line that is 80 or more characters with the result of running par. If the buffer contains 1000 long lines, this will call par 1000 times.
:g/.\{80,\}/ .!par w70
This need arises when you copy/paste a programming snippet into Vim, and you want to leave the indented code alone, but format the long explanation.
See also
- 347 Format paragraph without changing the cursor position
- 440 Automatic formatting of paragraphs
- 850 Automatic word wrapping
- 989 Word wrap without line breaks
Comments
How is this better than gq with a line width of 80?
- This IS better than gq with a line width of 80 because it prevents short lines without empty line between them from being concatenated! --February 3, 2016
- See :help 'formatprg'. You could probably get the best of both worlds. --Fritzophrenic (talk)