MIME Resources
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Resources define the set of MIME types that exmh understands.
Resources also define the font families used to display messages
in various character sets.
- mimeTypes
-
This lists the Content-Types for which handler procedures are defined.
Each of these has a corresponding mime_content/type
resource that specifies the Tcl command used to display a part of
that type.
mimeUTypes is the parallel resource for users to add
content types of their own.
For example:
*mimeTypes: image/gif text/plain text/richtext text/enriched multipart/mixed \
multipart/digest multipart/parallel multipart/alternative \
application/octet-stream message/external-body message/rfc822 \
image
*mimeUTypes:
*mime_text/plain: Mime_ShowText
*mime_text/richtext: Mime_ShowRichText
*mime_text/enriched: Mime_ShowRichText
*mime_multipart/mixed: Mime_ShowMultipart
*mime_multipart/digest: Mime_ShowMultipartDigest
*mime_multipart/parallel: Mime_ShowMultipartParallel
*mime_multipart/alternative: Mime_ShowMultipartAlternative
*mime_application/octet-stream: Mime_ShowApplicationOctet
*mime_message/external-body: Mime_ShowMessageExternal
*mime_message/rfc822: Mime_ShowRfc822
*mime_image: Mime_ShowImage
- mimeCharsets
-
A font has a character set, an encoding for the characters.
In a MIME Content-Type of text, the charset parameter defines
the character set for the text.
us-ascii is the basic ASCII charset; it lacks special characters
used in many European languages.
The iso-8859-1 character set has 8-bit characters and is used to
encode accented and other special characters used
in Latin-based languages.
iso-8859-8 is used for Hebrew.
iso-2022-jp is used for Kanji.
You need a specialized version of the Tk toolkit to display Kanji.
Each charset has two resources associated with it:
the registry and the encoding.
If you are familiar with X font names, you will
recognize the registry and encoding
as the last two components of a font specification.
*mimeCharsets: us-ascii iso-8859-1 iso-8859-8 iso-2022-jp
*mimeUCharsets:
*mime_us-ascii_registry: iso8859
*mime_us-ascii_encoding: *
*mime_iso-8859-1_registry: iso8859
*mime_iso-8859-1_encoding: 1
*mime_iso-8859-8_registry: iso8859
*mime_iso-8859-8_encoding: 8
*mime_iso-2022-jp_registry: iso8859
*mime_iso-2022-jp_encoding: *
- mime_charset_plain_families
-
A font has a family that determines the basic look for the font -- for
example, times or helvetica.
Each of the family resources is a list of families that
are tried, in order, to find a font supported by the X
server.
The plain family resource lists a set
of font families used for ordinary text/plain messages.
*mime_us-ascii_plain_families: fixed clean lucidatypewriter courier terminal
*mime_iso-8859-1_plain_families: lucidatypewriter fixed courier terminal
*mime_iso-8859-8_plain_families: fixed
*mime_iso-2022-jp_plain_families: fixed
- mime_charset_fixed_families
-
The fixed families are used to display fixed-width fonts.
"Fixed" is one of the types allowed by text/enriched contents.
*mime_us-ascii_fixed_families: lucidatypewriter fixed clean courier terminal
*mime_iso-8859-1_fixed_families: lucidatypewriter fixed courier terminal
*mime_iso-8859-8_fixed_families: fixed
*mime_iso-2022-jp_fixed_families: fixed
- mime_charset_proportional_families
-
The proportional families are used for text/enriched.
*mime_us-ascii_proportional_families: times "new century schoolbook" \
lucidabright charter lucida helvetica
*mime_iso-8859-1_proportional_families: times "new century schoolbook" \
lucidabright charter lucida helvetica
*mime_iso-8859-8_proportional_families:
*mime_iso-2022-jp_proportional_families:
- mime_charset_title_families
-
The title families are used for menu and section titles.
*mime_us-ascii_title_families: times "new century schoolbook" \
lucidabright charter lucida helvetica
*mime_iso-8859-1_title_families: times "new century schoolbook" \
lucidabright charter lucida helvetica
*mime_iso-8859-8_title_families:
*mime_iso-2022-jp_title_families:
- mimeExtMethods
-
This resource lists the set of external access methods
for message/external-body MIME parts.
For each of these methods, a corresponding
resource lists the Tcl command that handles the
access method.
*mimeExtMethods: local-file anon-ftp
*mimeUExtMethods:
*mime_local-file: MimeLocalFileTransfer
*mime_anon-ftp: MimeFTPTransfer
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