Changeset 1975 for draft-ietf-httpbis/latest/p1-messaging.html
- Timestamp:
- 05/11/12 05:10:11 (10 years ago)
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draft-ietf-httpbis/latest/p1-messaging.html
r1973 r1975 1268 1268 (to avoid buffer copying) prior to interpreting the field value or forwarding the message downstream. 1269 1269 </p> 1270 <p id="rfc.section.3.2.2.p.4">Historically, HTTP has allowed field content with text in the ISO-8859-1 <a href="#ISO-8859-1" id="rfc.xref.ISO-8859-1.1"><cite title="Information technology -- 8-bit single-byte coded graphic character sets -- Part 1: Latin alphabet No. 1">[ISO-8859-1]</cite></a> char acter encoding and supported other character sets only through use of <a href="#RFC2047" id="rfc.xref.RFC2047.1"><cite title="MIME (Multipurpose Internet Mail Extensions) Part Three: Message Header Extensions for Non-ASCII Text">[RFC2047]</cite></a> encoding. In practice, most HTTP header field values use only a subset of the US-ASCII character encoding <a href="#USASCII" id="rfc.xref.USASCII.3"><cite title="Coded Character Set -- 7-bit American Standard Code for Information Interchange">[USASCII]</cite></a>. Newly defined header fields <em class="bcp14">SHOULD</em> limit their field values to US-ASCII octets. Recipients <em class="bcp14">SHOULD</em> treat other (obs-text) octets in field contentas opaque data.1270 <p id="rfc.section.3.2.2.p.4">Historically, HTTP has allowed field content with text in the ISO-8859-1 <a href="#ISO-8859-1" id="rfc.xref.ISO-8859-1.1"><cite title="Information technology -- 8-bit single-byte coded graphic character sets -- Part 1: Latin alphabet No. 1">[ISO-8859-1]</cite></a> charset, supporting other charsets only through use of <a href="#RFC2047" id="rfc.xref.RFC2047.1"><cite title="MIME (Multipurpose Internet Mail Extensions) Part Three: Message Header Extensions for Non-ASCII Text">[RFC2047]</cite></a> encoding. In practice, most HTTP header field values use only a subset of the US-ASCII charset <a href="#USASCII" id="rfc.xref.USASCII.3"><cite title="Coded Character Set -- 7-bit American Standard Code for Information Interchange">[USASCII]</cite></a>. Newly defined header fields <em class="bcp14">SHOULD</em> limit their field values to US-ASCII octets. Recipients <em class="bcp14">SHOULD</em> treat other octets in field content (obs-text) as opaque data. 1271 1271 </p> 1272 1272 <h3 id="rfc.section.3.2.3"><a href="#rfc.section.3.2.3">3.2.3</a> <a id="field.length" href="#field.length">Field Length</a></h3>
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