109&^*&#^() Must Start With Alpha

Strip out &^% characters ^&*^

Special Cross Reference Cases

1 Cross-References: Special Characters!@#$%^&*()<>

And now, link to 1 Cross-References: Special Characters!@#$%^&*()<>

Setext 1

Setext 2

Atx 1

Link to Setext 1.

And Setext 2.

And Atx 1.

And [Atx 2] should fail.

Manual Header

Manual Header 2

Manual Header 3