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An optional base64 extension base64, separated from the preceding part by a semicolon. When present, this indicates that the data content of the URI is binary data , encoded in ASCII format using the Base64 scheme for binary-to-text encoding .
Base64 is often used to embed binary data in an XML file, using a syntax similar to <data encoding="base64">…</data> e.g. favicons in Firefox's exported bookmarks.html. Base64 is used to encode binary files such as images within scripts, to avoid depending on external files. Base64 can be used to embed PDF files in HTML pages. [15]
A binary-to-text encoding is encoding of data in plain text.More precisely, it is an encoding of binary data in a sequence of printable characters.These encodings are necessary for transmission of data when the communication channel does not allow binary data (such as email or NNTP) or is not 8-bit clean.
The idea of adding timing information on the Web by extending HTML [2] came very early on, out of the work done on the Synchronized Multimedia Integration Language.Based on XML, the work on TTML started in 2003 [3] and an early draft was released in November 2004 as Timed Text (TT) Authoring Format 1.0 – Distribution Format Exchange Profile (DFXP). [4]
A Base64-encoded binary MD5 sum of the content of the response: Content-MD5: Q2hlY2sgSW50ZWdyaXR5IQ== Obsolete [15] RFC 1544, 1864, 4021: Content-Range: Where in a full body message this partial message belongs: Content-Range: bytes 21010-47021/47022: Permanent RFC 9110: Content-Type: The MIME type of this content: Content-Type: text/html ...
XOP allows the binary data part of an XML Infoset to be serialized without going through the XML serializer. The XML serialization of an XML Infoset is text based, so any binary data will need to be encoded using base64. Using XOP avoids this by extracting the binary data out of the XML Infoset so that the XML Infoset does not contain binary ...
The first part of the file is an e-mail header. The second part is normally HTML code. Subsequent parts are additional resources identified by their original uniform resource locators (URLs) and encoded in base64 binary-to-text encoding. MHTML was proposed as an open standard, then circulated in a revised edition in 1999 as RFC 2557.
TeX4ht was developed in the 1990s to convert (La)TeX to HTML, helping to publish scientific documents that were written in (La)TeX on the World Wide Web for display in a web browser. Particularly, hypertext features were supported, so it became possible to include hyperlinks in the web version of documents.