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I just want to transform

for(int i = 1; i <= N; i++) if(ord[i] == -1) dfs(i, 0, i);

to

for(int i = 1; i <= N; i++) {
    if(ord[i] == -1) dfs(i, 0, i);
}

as little key I should press as possible.

I found the plugin 'surround' but It seems like it has some functions(like 'yss{') that surrounds entire text line with brackets but not the block I want to surround. And if it is possible, i have to add some new lines at some position, so i think it will be so uncomfortable.

And I also found some original vim commands, but I was too long and seems like taking too much time.

I'll be so glad if you guys tell me which plugin i should use. Thank you!

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3

The surround plugin does actually support this: If your cursor is in the i of the if, pressing yS${ or ySf;{ will have the desired effect.

In general, substituting an uppercase S for the lowercase s in most of the plugin's shortcuts will do a linewise operation instead of the default characterwise one.

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1
  • Wow! Thank you so much. You are so genius – david Hwang Oct 1 '17 at 23:46
3

I'm quite surprised surround plugin doesn't handle this. If it's not there by default, I'm quite certain though that it can be configured to behave this way.

Any way, in lh-brackets, with the default settings, you can select (in visual mode) from if to the semi-colon and hit your leader key (backspace by default) followed by {.enter image description here

In the screencast, <space> is my leader key, and ctrl+alt+4 relates to { on my French keyboard.

But honestly, if this is some C++ code, you'd better configure clang-format to your liking and run it on the current line that you would select. This way braces would also be added around the true path.

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  • 2
    Besides lh-brackets and surround (S in visual mode, or with more advanced config), the plugin splitjoin.vim is designed to handle this exact case (in many languages) – Mass Oct 1 '17 at 20:04
  • After i install and add 'LucHermitte/lh-vim-lib' and 'LucHermitte/lh-brackets' when i paste code 'for(int i = 1; i <= N; i++) if(ord[i] == -1) dfs(i, 0, i);' from my clipboard, It became 'for(int i = 1); i <= N; i++) if(ord[i] == -1) dfs(i, 0, i);' but if i commentize those plugins, there are no problems. What should i do? – david Hwang Oct 1 '17 at 23:16
  • @davidHwang That's odd. Whether I paste in normal mode, or in insert mode (with mouse middle button, or with i_CTRL-R_+/p) I don't observe anything like that. What you observe looks more like if you have typed the text manually -- I've configured the semi colon to close all opened parenthesis, and sometimes its behaviour can become quite annoying even with the abbreviations/Snippets I define in lh-cpp. How do you paste? And what :set tells you? Note: it'll may be best to continue this discussion either by mail or though an issue that you could open. – Luc Hermitte Oct 2 '17 at 0:29
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    @LucHermitte while trying to help out @davidHwang with his other question I was able to reproduce the issue. I was pasting from the clipboard with <C-V> while in insert mode (the ubuntu bash terminal equivalent of <C-v>. I believe invoking such a paste does indeed behave as if it were pasting each char manually. Ie if I am in normal mode the text would have only pasted nt i = 1); i <= N; i++) if(ord[i] == -1) dfs(i, 0, i); as it wouldnt be in insert mode till an i is pasted – ljden Oct 2 '17 at 7:23
  • @ljden. Thanks for the explanation. I'll have to improve context analysis in ; mapping. – Luc Hermitte Oct 2 '17 at 8:50

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