Indentation

When you press Enter, the new line is indented to the level of the code around the caret. You never indent by hand while typing: the caret lands where the next line belongs, so the code stays consistently formatted as you write it. (To re-indent existing code, see Reformat code.) One level is 2 spaces by default.

Try it

The steps use the sample project. The caret is the text cursor. The plugin may also add the matching end on the line below what you type; leave it (Brackets and quotes).

1. Open rtl/top.sv and click at the end of the line logic done;.
2. Press Enter. The caret is on a new line, indented by 2 spaces, in line with logic.
3. Type always_ff @(posedge clk) begin and press Enter. The caret is indented by 4 spaces.
4. Type if (!rst_n) and press Enter. The caret moves one more level in (6 spaces), ready for the body.
5. Press ⌘Z (macOS) / Ctrl+Z (Windows/Linux) until the lines you typed are gone and rtl/top.sv is as it was.

Where it indents

This works while the code is incomplete, for example right after typing if (!rst_n) inside an always_ff block. These are the places the plugin handles:

Caret is in	New line
A module, interface, program, package or class body	one level in
A port list written inside the parentheses after the module name, module m( … );	one level in
The items of a case, fork … join, generate region or generate block (for (…) begin : g), covergroup, constraint block, property, struct or enum body	one level in
A function or task body	one level deeper than the function or task
A begin … end block	one level deeper than the line with begin
Right after a statement header whose body is not written yet: if (…), else, for/foreach/while/repeat (…), case (…), always_ff @(…), always_comb, initial, @(…)	one level deeper than the header
After the one-line body of such a header without begin (the line after if (a) that holds x = 1;), or after the end of its block	back to the level of the header
After endmodule, endclass, … at file level	no indent

Changing the indent size

Open Settings (⌘, on macOS / Ctrl+Alt+S on Windows/Linux), go to Editor | Code Style | SystemVerilog and set Indent on the Tabs and Indents tab. Reformat code uses the same setting.

If it doesn’t work

You see	Likely cause	What to do
The new line is not indented	The file is not a SystemVerilog file (.sv, .svh, .v), or the plugin is disabled	See Installation
Inside code switched off by an `ifdef	Inactive code is not analysed	See Conditional compilation
The indent is 4 spaces, not 2	Indent is set to 4, or the project’s code style says so	Check Editor | Code Style | SystemVerilog | Tabs and Indents