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mime(n) 1.3.3 "Mime"
mime - Manipulation of MIME body parts
package require Tcl
package require mime ?1.3.3?
The mime library package provides the commands to create and
manipulate MIME body parts.
- ::mime::initialize ?-canonical type/subtype ?-param {key value}...? ?-encoding value? ?-header {key value}...?? (-file name | -string value | -part {token1 ... tokenN})
-
This command creates a MIME part and returns a token representing it.
-
If the -canonical option is present, then the body is in
canonical (raw) form and is found by consulting either the
-file, -string, or -part option.
In addition, both the -param and -header options may
occur zero or more times to specify Content-Type parameters
(e.g., charset) and header keyword/values (e.g.,
Content-Disposition), respectively.
Also, -encoding, if present, specifies the
Content-Transfer-Encoding when copying the body.
-
If the -canonical option is not present, then the MIME part
contained in either the -file or the -string option
is parsed, dynamically generating subordinates as appropriate.
- ::mime::finalize token ?-subordinates all | dynamic | none?
-
This command destroys the MIME part represented by token. It
returns an empty string.
If the -subordinates option is present, it specifies which
subordinates should also be destroyed. The default value is
dynamic, destroying all subordinates which were created by
::mime::initialize together with the containing body part.
- ::mime::getproperty token ?property | -names?
-
This command returns a string or a list of strings containing the
properties of a MIME part. If the command is invoked with the name of
a specific property, then the corresponding value is returned;
instead, if -names is specified, a list of all properties is
returned; otherwise, a serialized array of properties and values is
returned.
The possible properties are:
- content
-
The type/subtype describing the content
- encoding
-
The "Content-Transfer-Encoding"
- params
-
A list of "Content-Type" parameters
- parts
-
A list of tokens for the part's subordinates. This property is
present only if the MIME part has subordinates.
- size
-
The approximate size of the content (unencoded)
- ::mime::getheader token ?key | -names?
-
This command returns the header of a MIME part, as a list of strings.
A header consists of zero or more key/value pairs. Each value is a
list containing one or more strings.
If this command is invoked with the name of a specific key, then
a list containing the corresponding value(s) is returned; instead, if
-names is specified, a list of all keys is returned; otherwise, a
serialized array of keys and values is returned. Note that when a key
is specified (e.g., "Subject"), the list returned usually contains
exactly one string; however, some keys (e.g., "Received") often occur
more than once in the header, accordingly the list returned usually
contains more than one string.
- ::mime::setheader token key value ?-mode write | append | delete?
-
This command writes, appends to, or deletes the value associated
with a key in the header. It returns a list of strings
containing the previous value associated with the key.
The value for -mode is one of:
- write
-
The key/value is either created or overwritten (the default).
- append
-
A new value is appended for the key (creating it as necessary).
- delete
-
All values associated with the key are removed (the value
parameter is ignored).
- ::mime::getbody token ?-command callback ?-blocksize octets??
-
This command returns a string containing the body of the leaf MIME
part represented by token in canonical form.
If the -command option is present, then it is repeatedly
invoked with a fragment of the body as this:
| |
uplevel #0 $callback [list "data" $fragment]
|
(The -blocksize option, if present, specifies the maximum
size of each fragment passed to the callback.)
When the end of the body is reached, the callback is invoked as:
| |
uplevel #0 $callback "end"
|
Alternatively, if an error occurs, the callback is invoked as:
| |
uplevel #0 $callback [list "error" reason]
|
Regardless, the return value of the final invocation of the callback
is propagated upwards by mime::getbody.
If the -command option is absent, then the return value of
::mime::getbody is a string containing the MIME part's entire
body.
- ::mime::copymessage token channel
-
This command copies the MIME represented by token part to the
specified channel. The command operates synchronously, and uses
fileevent to allow asynchronous operations to proceed
independently. It returns an empty string.
- ::mime::buildmessage token
-
This command returns the MIME part represented by token as a
string. It is similar to ::mime::copymessage, only it returns
the data as a return string instead of writing to a channel.
- ::mime::parseaddress string
-
This command takes a string containing one or more 822-style address
specifications and returns a list of serialized arrays, one element
for each address specified in the argument. If the string contains
more than one address they will be separated by commas.
Each serialized array contains the properties below. Note that one or
more of these properties may be empty.
- address
-
local@domain
- comment
-
822-style comment
- domain
-
the domain part (rhs)
- error
-
non-empty on a parse error
- group
-
this address begins a group
- friendly
-
user-friendly rendering
- local
-
the local part (lhs)
- memberP
-
this address belongs to a group
- phrase
-
the phrase part
- proper
-
822-style address specification
- route
-
822-style route specification (obsolete)
- ::mime::parsedatetime (string | -now) property
-
This command takes a string containing an 822-style date-time
specification and returns the specified property as a serialized
array.
The list of properties and their ranges are:
- hour
-
0 .. 23
- lmonth
-
January, February, ..., December
- lweekday
-
Sunday, Monday, ... Saturday
- mday
-
1 .. 31
- min
-
0 .. 59
- mon
-
1 .. 12
- month
-
Jan, Feb, ..., Dec
- proper
-
822-style date-time specification
- rclock
-
elapsed seconds between then and now
- sec
-
0 .. 59
- wday
-
0 .. 6 (Sun .. Mon)
- weekday
-
Sun, Mon, ..., Sat
- yday
-
1 .. 366
- year
-
1900 ...
- zone
-
-720 .. 720 (minutes east of GMT)
- ::mime::mapencoding encoding_name
-
This commansd maps tcl encodings onto the proper names for their MIME
charset type. This is only done for encodings whose charset types
were known. The remaining encodings return "" for now.
- ::mime::reversemapencoding charset_type
-
This command maps MIME charset types onto tcl encoding names. Those
that are unknown return "".
- SourceForge Tcllib Bug #447037
-
This problem affects only people which are using Tcl and Mime on a
64-bit system. The currently recommended fix for this problem is to
upgrade to Tcl version 8.4. This version has extended 64 bit support
and the bug does not appear anymore.
The problem could have been generally solved by requiring the use of
Tcl 8.4 for this package. We decided against this solution as it would
force a large number of unaffected users to upgrade their Tcl
interpreter for no reason.
See http://sourceforge.net/tracker/?func=detail&aid=447037&group_id=12883&atid=112883
for additional information.
ftp , http , pop3 , smtp
email , internet , mail , mime , net , rfc 821 , rfc 822 , smtp
Copyright © 1999-2000 Marshall T. Rose