Markup spec/BNF/Magic links: Difference between revisions
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Counter-examples: |
Counter-examples: |
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* ISBN 12345678901 (not followed by non-word character |
* ISBN 12345678901 (not followed by non-word character) |
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* ISBN 123456789 (too short) |
* ISBN 123456789 (too short) |
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* ISBN 97-81234567890 (dashes not allowed in prefix) |
* ISBN 97-81234567890 (dashes not allowed in prefix) |
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<syntaxhighlight lang="bnf"> |
<syntaxhighlight lang="bnf"> |
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<rfc-number> ::= "RFC" <spaces> <digits> |
<rfc-number> ::= "RFC" <spaces> <digits> |
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</syntaxhighlight> |
</syntaxhighlight>Examples: |
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* RFC 0001 |
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* RFC 3986 |
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== PubMed IDs == |
== PubMed IDs == |
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Revision as of 14:05, 21 June 2024
EBNF grammar project
Magic links are words that may appear within <wiki-text> that are automatically converted to external links without any special markup being required by the person writing the page.
<magic-link> ::= <isbn> | <rfc-number> | <pmid-number>
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
<isbn> ::= "ISBN" (" "+) <isbn-number> ?(non-word-character /\b/)
<isbn-number> ::= ("97" ("8" | "9") (" " | "-")?) (DIGIT (" " | "-")?) {9} (DIGIT | "X" | "x")
Examples:
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
<rfc-number> ::= "RFC" <spaces> <digits>
Examples:
PubMed IDs
<pmid-number> ::= "PMID" <spaces> <digits>