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There are several variables for controlling message analysis.
The size limit of messages to be analyzed. If the size of a message is less than or equal to this value, it is analyzed and displayed. Otherwise, the raw message is displayed without analysis. The default value is 10000 bytes.
The length limit of header to be analyzed. If the length of a header is less than or equal to this value, it is analyzed and displayed. Otherwise, the message is displayed as fragmentarily since the analysis is stopped. The default value is 100 lines.
Whether Mew be liberal or conservative to invalid messages. If the value is ‘t’, the setting is liberal. If the value is ‘nil’, the setting is for conservative. If conservative and invalid portions are found, they are reported in the X-Mew: field. The default value is ‘t’.
Whether or not the text part of a body is displayed with its header. If the value is ‘t’, both the body which is a single part text and the first text part in a multipart body are displayed with its header. If the value is ‘nil’, they are displayed as a single part in a multipart. The default value is ‘t’.
How to treat Multipart/Alternative. If the value is ‘t’, one part is displayed according to the preference defined in ‘mew-mime-multipart-alternative-list’. If the value is ‘nil’, it is displayed as a multipart. The default value is ‘t’.
How to treat Text/Html. If ‘nil’, HTML is displayed as is (without parsing). Otherwise, HTML is parsed and displayed. The default value is ‘nil’.
How to treat Text/Xml. If ‘nil’, XML is displayed as is (without parsing). Otherwise, XML is parsed and displayed. The default value is ‘t’.
The basic command relating to the variables above is ‘.’. The command acts as follows:
1) If this command executed on a message, the cache of the message is removed and the message is analyzed then displayed.
1a) If the size of the current message exceeds ‘mew-file-max-size’, MIME analysis is skipped then the beginning of the raw message is displayed. In this situation, this command analyzes the current message without the limitation then displays it.
1b) If the length of a header exceeds ‘mew-header-max-length’, a broken message is displayed. In this situation, this command analyzes the current message without the limitation then displays it.
1c) If the current message is displayed by ‘:’, the multipart structure is displayed different from the normal display. In this situation, this command gets the multipart structure back to the normal display.
1d) If ‘mew-use-text/html’ is ‘nil’, its HTML body is displayed as is. In this situation, this command analyzes the HTML body and displays it.
2) If this command is called on a part, the part is displayed again.
2a) If 'mew-use-text/html' is ‘nil’, its HTML part is displayed as is. In this situation, this command analyzes the HTML part and displays it.
In addition to ‘.’, the following commands are prepared:
Analyze the message and re-display it.
Analyze the message with ‘mew-decode-broken’ reversed (see See section Invalid messages).
The same as ‘.’ with ‘mew-use-alternative’ and ‘mew-use-text-body’ reversed.
The same as ‘C-u.’ with ‘mew-use-alternative’ and ‘mew-use-text-body’ reversed.
Insert a message or a part into Message mode in raw format.
Open an entire message as a file in read-only mode.
Open an entire message as a file.
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