342 lines
5.2 KiB
HTML
342 lines
5.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
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<HTML
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><HEAD
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><TITLE
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>Shared MIME-info Database</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
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REL="NEXT"
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TITLE="Unified system"
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HREF="x34.html"></HEAD
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><BODY
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CLASS="article"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="ARTICLE"
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><DIV
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CLASS="TITLEPAGE"
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><H1
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CLASS="title"
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><A
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NAME="AEN2"
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>Shared MIME-info Database</A
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></H1
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><DIV
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CLASS="authorgroup"
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><A
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NAME="AEN3"
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></A
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><H3
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CLASS="corpauthor"
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> <A
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HREF="http://www.freedesktop.org"
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TARGET="_top"
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> X Desktop Group
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</A
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>
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</H3
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><H3
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CLASS="author"
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><A
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NAME="AEN6"
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>Thomas Leonard</A
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></H3
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><DIV
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CLASS="affiliation"
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><DIV
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CLASS="address"
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><P
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CLASS="address"
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><CODE
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CLASS="email"
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><<A
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HREF="mailto:tal197 at users.sf.net"
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>tal197 at users.sf.net</A
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>></CODE
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></P
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></DIV
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></DIV
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></DIV
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><HR></DIV
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><DIV
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CLASS="TOC"
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><DL
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><DT
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><B
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>Table of Contents</B
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></DT
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><DT
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>1. <A
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HREF="index.html#AEN14"
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>Introduction</A
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></DT
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><DD
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><DL
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><DT
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>1.1. <A
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HREF="index.html#AEN16"
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>Version</A
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></DT
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><DT
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>1.2. <A
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HREF="index.html#AEN19"
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>What is this spec?</A
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></DT
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><DT
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>1.3. <A
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HREF="index.html#AEN30"
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>Language used in this specification</A
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></DT
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></DL
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></DD
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><DT
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>2. <A
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HREF="x34.html"
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>Unified system</A
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></DT
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><DD
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><DL
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><DT
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>2.1. <A
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HREF="x34.html#s2_layout"
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>Directory layout</A
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></DT
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><DT
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>2.2. <A
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HREF="x34.html#AEN124"
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>The source XML files</A
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></DT
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><DT
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>2.3. <A
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HREF="x34.html#AEN290"
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>The MEDIA/SUBTYPE.xml files</A
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></DT
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><DT
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>2.4. <A
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HREF="x34.html#AEN301"
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>The glob files</A
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></DT
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><DT
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>2.5. <A
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HREF="x34.html#AEN322"
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>The magic files</A
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></DT
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><DT
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>2.6. <A
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HREF="x34.html#AEN372"
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>The XMLnamespaces files</A
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></DT
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><DT
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>2.7. <A
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HREF="x34.html#AEN378"
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>The icon files</A
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></DT
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><DT
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>2.8. <A
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HREF="x34.html#AEN385"
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>The treemagic files</A
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></DT
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><DT
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>2.9. <A
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HREF="x34.html#AEN413"
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>The mime.cache files</A
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></DT
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><DT
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>2.10. <A
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HREF="x34.html#AEN430"
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>Storing the MIME type using Extended Attributes</A
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></DT
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><DT
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>2.11. <A
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HREF="x34.html#subclassing"
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>Subclassing</A
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></DT
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><DT
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>2.12. <A
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HREF="x34.html#AEN446"
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>Recommended checking order</A
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></DT
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><DT
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>2.13. <A
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HREF="x34.html#AEN465"
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>Non-regular files</A
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></DT
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><DT
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>2.14. <A
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HREF="x34.html#AEN477"
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>Content types for volumes</A
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></DT
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><DT
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>2.15. <A
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HREF="x34.html#AEN484"
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>URI scheme handlers</A
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></DT
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><DT
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>2.16. <A
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HREF="x34.html#AEN489"
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>Security implications</A
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></DT
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><DT
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>2.17. <A
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HREF="x34.html#AEN493"
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>User modification</A
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></DT
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></DL
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></DD
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><DT
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>3. <A
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HREF="x497.html"
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>Contributors</A
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></DT
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><DT
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><A
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HREF="b518.html"
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>References</A
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></DT
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></DL
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></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="AEN14"
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>1. Introduction</A
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></H1
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><DIV
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CLASS="sect2"
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><H2
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CLASS="sect2"
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><A
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NAME="AEN16"
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>1.1. Version</A
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></H2
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><P
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> This is version 0.20 of the Shared MIME-info Database specification, last updated 8 October 2010.</P
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></DIV
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><DIV
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CLASS="sect2"
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><H2
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CLASS="sect2"
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><A
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NAME="AEN19"
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>1.2. What is this spec?</A
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></H2
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><P
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> Many programs and desktops use the MIME system[<SPAN
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CLASS="citation"
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>MIME</SPAN
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>]
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to represent the types of files. Frequently, it is necessary to work out the
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correct MIME type for a file. This is generally done by examining the file's
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name or contents, and looking up the correct MIME type in a database.
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</P
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><P
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> It is also useful to store information about each type, such as a textual
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description of it, or a list of applications that can be used to view or edit
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files of that type.
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</P
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><P
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> For interoperability, it is useful for different programs to use the same
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database so that different programs agree on the type of a file and
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information is not duplicated. It is also helpful for application authors to
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only have to install new information in one place.
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</P
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><P
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> This specification attempts to unify the MIME database systems currently in
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use by GNOME[<SPAN
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CLASS="citation"
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>GNOME</SPAN
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>], KDE[<SPAN
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CLASS="citation"
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>KDE</SPAN
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>] and
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ROX[<SPAN
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CLASS="citation"
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>ROX</SPAN
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>], and provide room for future extensibility.
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</P
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><P
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> The MIME database does NOT store user preferences (such as a user's preferred
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application for handling files of a particular type). It may be used to store
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static information, such as that files of a certain type may be viewed with
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a particular application.
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</P
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></DIV
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><DIV
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CLASS="sect2"
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><H2
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CLASS="sect2"
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><A
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NAME="AEN30"
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>1.3. Language used in this specification</A
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></H2
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><P
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> The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD",
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"SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be
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interpreted as described in RFC 2119[<SPAN
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CLASS="citation"
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>RFC-2119</SPAN
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>].
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</P
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></DIV
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="x34.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="33%"
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ALIGN="right"
|
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VALIGN="top"
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>Unified system</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |