diff --git a/src/dfmt.d b/src/dfmt.d
index 2385d40..8eba3fb 100644
--- a/src/dfmt.d
+++ b/src/dfmt.d
@@ -173,22 +173,26 @@ private:
         assert(index < tokens.length);
         if (currentIs(tok!"comment"))
         {
+            immutable bool currIsSlashSlash = tokens[index].text[0 .. 2] == "//";
             if (index > 0)
             {
                 immutable t = tokens[index - 1].type;
-                if (t != tok!";" && t != tok!"}" && tokens[index - 1].line + 1 < tokens[index]
-                        .line)
+                immutable bool prevWasSlashSlash = t == tok!"comment"
+                    && tokens[index - 1].text[0 .. 2] == "//";
+                immutable bool shouldSkipNewline = prevWasSlashSlash && !currIsSlashSlash
+                    && tokens[index - 1].line + 2 <= tokens[index].line;
+                if (!shouldSkipNewline && t != tok!";" && t != tok!"}"
+                        && tokens[index - 1].line + 1 < tokens[index].line)
                 {
                     newline();
                 }
-                else if (tokens[index - 1].line == tokens[index].line)
+                else if (tokens[index - 1].line == tokens[index].line
+                        || (t == tok!")" && tokens[index + 1].type == tok!"{"))
                     write(" ");
-                else if (isWrapIndent(t))
-                    pushWrapIndent(t);
             }
             writeToken();
             immutable j = justAddedExtraNewline;
-            if (tokens[index - 1].text[0 .. 2] == "//")
+            if (currIsSlashSlash)
             {
                 newline();
                 justAddedExtraNewline = j;
@@ -1019,6 +1023,7 @@ private:
         {
             output.put("\n");
         }
+
         justAddedExtraNewline = false;
         currentLineLength = 0;
 
diff --git a/tests/allman/issue0027.d.ref b/tests/allman/issue0027.d.ref
new file mode 100644
index 0000000..683f0d2
--- /dev/null
+++ b/tests/allman/issue0027.d.ref
@@ -0,0 +1,21 @@
+SignExtendedNumber opMul(const SignExtendedNumber a) const
+{
+    //  like 0x10 * 0x10 == 0x100 == 0.
+
+    /* Special handling for zeros:
+    */
+}
+
+unittest
+{
+    if (Port.isNan(r1) || Port.isNan(r2)) // if unordered
+    {
+    }
+
+    while (cur && cur.ty == Tsarray) // sizes of dimensions
+    {
+        TypeSArray sa = cast(TypeSArray) cur;
+        mangleNumber(sa.dim ? sa.dim.toInteger() : 0);
+        cur = cur.nextOf();
+    }
+}
diff --git a/tests/issue0027.d b/tests/issue0027.d
new file mode 100644
index 0000000..442e856
--- /dev/null
+++ b/tests/issue0027.d
@@ -0,0 +1,22 @@
+SignExtendedNumber opMul(const SignExtendedNumber a) const
+{
+    //  like 0x10 * 0x10 == 0x100 == 0.
+
+    /* Special handling for zeros:
+    */
+}
+
+unittest
+{
+    if (Port.isNan(r1) || Port.isNan(r2)) // if unordered
+    {
+    }
+
+    while (cur && cur.ty == Tsarray)
+        // sizes of dimensions
+    {
+        TypeSArray sa = cast(TypeSArray) cur;
+        mangleNumber(sa.dim ? sa.dim.toInteger() : 0);
+        cur = cur.nextOf();
+    }
+}
diff --git a/tests/otbs/issue0027.d.ref b/tests/otbs/issue0027.d.ref
new file mode 100644
index 0000000..922af48
--- /dev/null
+++ b/tests/otbs/issue0027.d.ref
@@ -0,0 +1,19 @@
+SignExtendedNumber opMul(const SignExtendedNumber a) const {
+    //  like 0x10 * 0x10 == 0x100 == 0.
+
+    /* Special handling for zeros:
+    */
+}
+
+unittest {
+    if (Port.isNan(r1) || Port.isNan(r2)) // if unordered
+     {
+        }
+
+        while (cur && cur.ty == Tsarray) // sizes of dimensions
+         {
+                TypeSArray sa = cast(TypeSArray) cur;
+                mangleNumber(sa.dim ? sa.dim.toInteger() : 0);
+                cur = cur.nextOf();
+            }
+}