Markup spec/BNF/Magic links

Magic links are words that may appear within  that are automatically converted to external links without any special markup being required by the person writing the page.

Note that all character-literals on this page are case sensitive (i.e. upper-case characters in the definitions on this page MUST be written in upper case in the markup).

ISBN numbers
See Manual:ISBN

Examples:
 * ISBN 1234567890
 * ISBN 123456789x
 * ISBN                            1 2 3-4-5 6789 X
 * ISBN 978-9999999999

Counter-examples:
 * ISBN 12345678901 (not followed by non-word character )
 * ISBN 123456789 (too short)
 * ISBN 97-81234567890 (dashes not allowed in prefix)
 * ISBN1234567890 (no spaces)

RFCs
See Manual:RFC