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Character Set and Entities I-Ds and RFCs can only use basic US-ASCII No accented or extension (like ¥ or ß) characters Only basic mathematical symbols Only use limited set of entities which are predefinedand can be rendered in US-ASCII & < > " ' – — ] Two other entities help with formatting: Non-breaking space: lines will not be broken here &nbhy; Non-breaking hyphen: --- ditto --- Some special entities: &rfc.number; The RFC number of this document (xxxx while it is still an I-D) |