diff --git a/test/captures/noncapturing/explicit2_leftmost_inverted.c b/test/captures/noncapturing/explicit2_leftmost_inverted.c
new file mode 100644
index 000000000..983d47c97
--- /dev/null
+++ b/test/captures/noncapturing/explicit2_leftmost_inverted.c
@@ -0,0 +1,241 @@
+/* Generated by re2c */
+// re2c $INPUT -o $OUTPUT -i --leftmost-captures --invert-captures
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy3;
+		default: goto yy1;
+	}
+yy1:
+	++YYCURSOR;
+yy2:
+	{}
+yy3:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy4;
+		default: goto yy2;
+	}
+yy4:
+	++YYCURSOR;
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy8;
+		default: goto yy6;
+	}
+yy6:
+	++YYCURSOR;
+yy7:
+	{}
+yy8:
+	yych = *(YYMARKER = ++YYCURSOR);
+	switch (yych) {
+		case 'b': goto yy9;
+		default: goto yy7;
+	}
+yy9:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy11;
+		default: goto yy10;
+	}
+yy10:
+	YYCURSOR = YYMARKER;
+	goto yy7;
+yy11:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'b': goto yy12;
+		default: goto yy10;
+	}
+yy12:
+	++YYCURSOR;
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy16;
+		default: goto yy14;
+	}
+yy14:
+	++YYCURSOR;
+yy15:
+	{}
+yy16:
+	yych = *(YYMARKER = ++YYCURSOR);
+	switch (yych) {
+		case 'b': goto yy17;
+		default: goto yy15;
+	}
+yy17:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy19;
+		default: goto yy18;
+	}
+yy18:
+	YYCURSOR = YYMARKER;
+	goto yy15;
+yy19:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'b': goto yy20;
+		default: goto yy18;
+	}
+yy20:
+	++YYCURSOR;
+	yynmatch = 2;
+	yypmatch[0] = YYCURSOR - 3;
+	yypmatch[1] = YYCURSOR - 2;
+	yypmatch[2] = YYCURSOR - 1;
+	yypmatch[3] = YYCURSOR;
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a':
+		case 'b': goto yy24;
+		default: goto yy22;
+	}
+yy22:
+	++YYCURSOR;
+yy23:
+	{}
+yy24:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a':
+		case 'b': goto yy25;
+		default: goto yy23;
+	}
+yy25:
+	++YYCURSOR;
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy29;
+		case 'b': goto yy30;
+		default: goto yy27;
+	}
+yy27:
+	++YYCURSOR;
+yy28:
+	{}
+yy29:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a':
+			yyt1 = NULL;
+			goto yy31;
+		case 'b':
+			yyt1 = NULL;
+			goto yy33;
+		default: goto yy28;
+	}
+yy30:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a':
+			yyt1 = YYCURSOR;
+			goto yy31;
+		case 'b':
+			yyt1 = YYCURSOR;
+			goto yy33;
+		default: goto yy28;
+	}
+yy31:
+	++YYCURSOR;
+	yyt2 = NULL;
+yy32:
+	yynmatch = 2;
+	yypmatch[1] = yyt1;
+	yypmatch[3] = yyt2;
+	yypmatch[0] = yyt1;
+	if (yyt1 != NULL) yypmatch[0] -= 1;
+	yypmatch[2] = yyt2;
+	if (yyt2 != NULL) yypmatch[2] -= 1;
+	{}
+yy33:
+	++YYCURSOR;
+	yyt2 = YYCURSOR;
+	goto yy32;
+}
+
+
+
+{
+	YYCTYPE yych;
+	goto yy34;
+yy35:
+	++YYCURSOR;
+yy34:
+	if (YYLIMIT <= YYCURSOR) YYFILL(1);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy35;
+		default: goto yy36;
+	}
+yy36:
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	goto yy37;
+yy38:
+	++YYCURSOR;
+yy37:
+	if (YYLIMIT <= YYCURSOR) YYFILL(1);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy38;
+		default:
+			yyt1 = NULL;
+			goto yy39;
+	}
+yy39:
+	yynmatch = 2;
+	yypmatch[1] = yyt1;
+	yypmatch[3] = yyt1;
+	yypmatch[0] = yyt1;
+	if (yyt1 != NULL) yypmatch[0] -= 2;
+	yypmatch[2] = yyt1;
+	if (yyt1 != NULL) yypmatch[2] -= 2;
+	{}
+}
+
+captures/noncapturing/explicit2_leftmost_inverted.re:35:9: warning: rule matches empty string [-Wmatch-empty-string]
+captures/noncapturing/explicit2_leftmost_inverted.re:40:9: warning: rule matches empty string [-Wmatch-empty-string]
diff --git a/test/captures/noncapturing/explicit2_leftmost_inverted.re b/test/captures/noncapturing/explicit2_leftmost_inverted.re
new file mode 100644
index 000000000..30b47a6c0
--- /dev/null
+++ b/test/captures/noncapturing/explicit2_leftmost_inverted.re
@@ -0,0 +1,41 @@
+// re2c $INPUT -o $OUTPUT -i --leftmost-captures --invert-captures
+
+/*!local:re2c
+    x = ("a");
+    x x {}
+    *   {}
+*/
+
+/*!local:re2c
+    x = ("a" "b");
+    x x {}
+    *   {}
+*/
+
+/*!local:re2c
+    x = ("a" (!"b"));
+    x x {}
+    *   {}
+*/
+
+/*!local:re2c
+    x = ("a" | "b");
+    x x {}
+    *   {}
+*/
+
+/*!local:re2c
+    x = ("a" | (!"b"));
+    x x {}
+    *   {}
+*/
+
+/*!local:re2c
+    x = ("a" | "aa");
+    x*x* {}
+*/
+
+/*!local:re2c
+    x = ("a" | (!"aa"));
+    x*x* {}
+*/
diff --git a/test/captures/noncapturing/explicit3_posix_inverted.c b/test/captures/noncapturing/explicit3_posix_inverted.c
new file mode 100644
index 000000000..1ca0d0013
--- /dev/null
+++ b/test/captures/noncapturing/explicit3_posix_inverted.c
@@ -0,0 +1,303 @@
+/* Generated by re2c */
+// re2c $INPUT -o $OUTPUT -i --posix-captures --invert-captures
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy3;
+		default: goto yy1;
+	}
+yy1:
+	++YYCURSOR;
+yy2:
+	{}
+yy3:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy4;
+		default: goto yy2;
+	}
+yy4:
+	++YYCURSOR;
+	yynmatch = 1;
+	yypmatch[0] = YYCURSOR - 2;
+	yypmatch[1] = YYCURSOR - 1;
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy8;
+		default: goto yy6;
+	}
+yy6:
+	++YYCURSOR;
+yy7:
+	{}
+yy8:
+	yych = *(YYMARKER = ++YYCURSOR);
+	switch (yych) {
+		case 'b': goto yy9;
+		default: goto yy7;
+	}
+yy9:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy11;
+		default: goto yy10;
+	}
+yy10:
+	YYCURSOR = YYMARKER;
+	goto yy7;
+yy11:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'b': goto yy12;
+		default: goto yy10;
+	}
+yy12:
+	++YYCURSOR;
+	yynmatch = 1;
+	yypmatch[0] = YYCURSOR - 4;
+	yypmatch[1] = YYCURSOR - 2;
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy16;
+		default: goto yy14;
+	}
+yy14:
+	++YYCURSOR;
+yy15:
+	{}
+yy16:
+	yych = *(YYMARKER = ++YYCURSOR);
+	switch (yych) {
+		case 'b': goto yy17;
+		default: goto yy15;
+	}
+yy17:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy19;
+		default: goto yy18;
+	}
+yy18:
+	YYCURSOR = YYMARKER;
+	goto yy15;
+yy19:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'b': goto yy20;
+		default: goto yy18;
+	}
+yy20:
+	++YYCURSOR;
+	yynmatch = 3;
+	yypmatch[0] = YYCURSOR - 4;
+	yypmatch[1] = YYCURSOR - 2;
+	yypmatch[2] = YYCURSOR - 3;
+	yypmatch[3] = YYCURSOR - 2;
+	yypmatch[4] = YYCURSOR - 1;
+	yypmatch[5] = YYCURSOR;
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a':
+		case 'b': goto yy24;
+		default: goto yy22;
+	}
+yy22:
+	++YYCURSOR;
+yy23:
+	{}
+yy24:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a':
+		case 'b': goto yy25;
+		default: goto yy23;
+	}
+yy25:
+	++YYCURSOR;
+	yynmatch = 1;
+	yypmatch[0] = YYCURSOR - 2;
+	yypmatch[1] = YYCURSOR - 1;
+	{}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy29;
+		case 'b': goto yy30;
+		default: goto yy27;
+	}
+yy27:
+	++YYCURSOR;
+yy28:
+	{}
+yy29:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a':
+			yyt1 = NULL;
+			goto yy31;
+		case 'b':
+			yyt1 = NULL;
+			goto yy33;
+		default: goto yy28;
+	}
+yy30:
+	yych = *++YYCURSOR;
+	switch (yych) {
+		case 'a':
+			yyt1 = YYCURSOR;
+			goto yy31;
+		case 'b':
+			yyt1 = YYCURSOR;
+			goto yy33;
+		default: goto yy28;
+	}
+yy31:
+	++YYCURSOR;
+	yyt2 = NULL;
+yy32:
+	yynmatch = 3;
+	yypmatch[3] = yyt1;
+	yypmatch[5] = yyt2;
+	yypmatch[0] = YYCURSOR - 2;
+	yypmatch[1] = YYCURSOR - 1;
+	yypmatch[2] = yyt1;
+	if (yyt1 != NULL) yypmatch[2] -= 1;
+	yypmatch[4] = yyt2;
+	if (yyt2 != NULL) yypmatch[4] -= 1;
+	{}
+yy33:
+	++YYCURSOR;
+	yyt2 = YYCURSOR;
+	goto yy32;
+}
+
+
+
+{
+	YYCTYPE yych;
+	if (YYLIMIT <= YYCURSOR) YYFILL(1);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a':
+			yyt2 = YYCURSOR;
+			goto yy36;
+		default:
+			yyt1 = yyt2 = NULL;
+			goto yy35;
+	}
+yy35:
+	yynmatch = 1;
+	yypmatch[0] = yyt2;
+	yypmatch[1] = yyt1;
+	{}
+yy36:
+	++YYCURSOR;
+	if (YYLIMIT <= YYCURSOR) YYFILL(1);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy37;
+		default:
+			yyt1 = YYCURSOR;
+			goto yy35;
+	}
+yy37:
+	++YYCURSOR;
+	if (YYLIMIT <= YYCURSOR) YYFILL(1);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a':
+			yyt2 = YYCURSOR;
+			goto yy36;
+		default:
+			yyt1 = YYCURSOR;
+			goto yy35;
+	}
+}
+
+
+
+{
+	YYCTYPE yych;
+	if (YYLIMIT <= YYCURSOR) YYFILL(1);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a':
+			yyt4 = YYCURSOR;
+			goto yy40;
+		default:
+			yyt1 = yyt2 = yyt3 = yyt4 = NULL;
+			goto yy39;
+	}
+yy39:
+	yynmatch = 3;
+	yypmatch[0] = yyt4;
+	yypmatch[1] = yyt1;
+	yypmatch[3] = yyt2;
+	yypmatch[5] = yyt3;
+	yypmatch[2] = yyt2;
+	if (yyt2 != NULL) yypmatch[2] -= 2;
+	yypmatch[4] = yyt3;
+	if (yyt3 != NULL) yypmatch[4] -= 2;
+	{}
+yy40:
+	++YYCURSOR;
+	if (YYLIMIT <= YYCURSOR) YYFILL(1);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a': goto yy41;
+		default:
+			yyt2 = yyt3 = NULL;
+			yyt1 = YYCURSOR;
+			goto yy39;
+	}
+yy41:
+	++YYCURSOR;
+	if (YYLIMIT <= YYCURSOR) YYFILL(1);
+	yych = *YYCURSOR;
+	switch (yych) {
+		case 'a':
+			yyt4 = YYCURSOR;
+			goto yy40;
+		default:
+			yyt3 = NULL;
+			yyt1 = yyt2 = YYCURSOR;
+			goto yy39;
+	}
+}
+
+captures/noncapturing/explicit3_posix_inverted.re:35:14: warning: rule matches empty string [-Wmatch-empty-string]
+captures/noncapturing/explicit3_posix_inverted.re:40:14: warning: rule matches empty string [-Wmatch-empty-string]
diff --git a/test/captures/noncapturing/explicit3_posix_inverted.re b/test/captures/noncapturing/explicit3_posix_inverted.re
new file mode 100644
index 000000000..d8ac8bbc8
--- /dev/null
+++ b/test/captures/noncapturing/explicit3_posix_inverted.re
@@ -0,0 +1,41 @@
+// re2c $INPUT -o $OUTPUT -i --posix-captures --invert-captures
+
+/*!local:re2c
+    x = "a";
+    (!x)(x) {}
+    *       {}
+*/
+
+/*!local:re2c
+    x = "a" "b";
+    (!x)(x) {}
+    *       {}
+*/
+
+/*!local:re2c
+    x = "a" (!"b");
+    (!x)(x) {}
+    *       {}
+*/
+
+/*!local:re2c
+    x = "a" | "b";
+    (!x)(x) {}
+    *       {}
+*/
+
+/*!local:re2c
+    x = "a" | (!"b");
+    (!x)(x) {}
+    *       {}
+*/
+
+/*!local:re2c
+    x = "a" | "aa";
+    (!x)*(x)* {}
+*/
+
+/*!local:re2c
+    x = "a" | (!"aa");
+    (!x)*(x)* {}
+*/