Commenting

Vem provides comment/uncomment support for most programming languages thanks to the NERD Commenter plugin.

To comment and uncomment pieces of code, use:

v

toggle comment

Your file type will be detected and the correct commenting symbols applied. This is a toggling action which means that pressing v once will comment out code and pressing it again will uncomment it.

If there is an active selection, all lines of the selection will be commented out, otherwise only the current line will —which is very practical for quickly comment/uncomment single lines.

For example, in C++, pressing v with this piece of code selected will produce:

// idVec3 idPlayer::colorBarTable[ 5 ] = {
//     idVec3( 0.25f, 0.25f, 0.25f ),
//     idVec3( 1.00f, 0.00f, 0.00f ),
//     idVec3( 0.00f, 0.80f, 0.10f ),
//     idVec3( 0.20f, 0.50f, 0.80f ),
//     idVec3( 1.00f, 0.80f, 0.10f )
// };

Note

v only takes into account the first line of the selection to decide if it needs to comment or uncomment the rest of them. That means that when you want to uncomment several lines that are mixed together with uncommented ones, make sure that the first line of your selection is one of the commented ones.

Filetype detection

Sometimes the type of your file may not be correctly detected. This happens, for example, if you edit a file with an .html extension that uses some kind of templating language inside. In that case, the file can be detected as pure HTML and the editor will apply the standard  comment markers instead of the comment markers of your templating language.

Check Filetype Autodetection to know how to change the current assigned filetype.

Block comments

By default, Vem uses line comments whenever possible, but you can instruct it to mark a block of code with block comment symbols using:

V

comment code using block comment symbols (eg. /* */ )

For example, commenting code out in C++ would result in:

/* idVec3 idPlayer::colorBarTable[ 5 ] = {
    idVec3( 0.25f, 0.25f, 0.25f ),
    idVec3( 1.00f, 0.00f, 0.00f ),
    idVec3( 0.00f, 0.80f, 0.10f ),
    idVec3( 0.20f, 0.50f, 0.80f ),
    idVec3( 1.00f, 0.80f, 0.10f )
}; */

Note that to uncomment a piece of code surrounded by block comment symbols you need to use v. V doesn't have the same toggling behaviour as v because it can be used to nest block comments.

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