"always @(* )" will trigger Error message '%Error:Search failed: "*)"'

[BlingBlingKing]

dut.sv

module dut (/*autoarg*/);
input clk;
input rst_n;
output logic d;

always @(* )
begin
  d = 1'b0;
end

Then we run the follow command

emacs -batch -l ./verilog-mode.el dut.sv -f verilog-batch-auto

The error message shows:

%Error: Search failed: "*)"

If we replace "@( )" with "@()" or "@( * )", the error message won't show again.

[gmlarumbe]

Hi @BlingBlingKing ,

Thanks for reporting the issue. The following patch to verilog-read-decls seems to fix it:

diff --git a/verilog-mode.el b/verilog-mode.el
index 37b09b5..b07f85c 100644
--- a/verilog-mode.el
+++ b/verilog-mode.el
@@ -9322,7 +9322,7 @@ Return an array of [outputs inouts inputs wire reg assign const gparam intf]."
     ((looking-at "(\\*")
      ;; To advance past either "(*)" or "(* ... *)" don't forward past first *
      (forward-char 1)
-     (or (search-forward "*)")
+     (or (re-search-forward "*?\\s-*)" nil t)
          (error "%s: Unmatched (* *), at char %d" (verilog-point-text) (point))))
     ((eq ?\" (following-char))
           (or (re-search-forward "[^\\]\"" nil t)  ; don't forward-char first, since we look for a non backslash first

Even though tests for Emacs keep passing (could not test for XEmacs though), @wsnyder might know better what the solution is here since I do not know much about the AUTO engine.

[wsnyder]

It needs to be slightly different, as we need to search for *) specifically to end attributes.

Anyhow thanks for zeroing in in where to fix it. Fixed in master.