An IndexFileEntry contains enough information to present a table-of-contents entry for the message and to support simple filtering based on a subset of the mail header information. The IndexFile maps unique message ID's to IndexFileEntries.

	filtering support
	ccHas: field:has: fromHas: getMessage participantHas: rawText subjectHas: text textHas: toHas:

	printing
	computeTOCString computeTOCStringAsColumns dateString flushTOCCache fromStringLimit: printOn: tocString tocStringAsColumns

	read-write
	readFrom: writeOn:

	testing
	comparableString: selfTestEquals:

	access	top
	cc
	cc:
	date Answer a date string for this index entry.
	from
	from:
	likelyEqual: return true if the two toc entries seem to represent the same message
	location
	location:
	messageFile
	messageFile:
	msgID
	msgID:
	subject
	subject:
	textLength
	textLength:
	time
	time:
	to
	to:

	filtering support	top
	ccHas:
	field:has: Return true if either the given field contains the argument string or, if the argument is a collection, return true if the given field contains any of the strings in that collection.
	fromHas:
	getMessage Answer the MailMessage for this index file entry.
	participantHas:
	rawText Answer the unparsed text for this entry.
	subjectHas:
	text
	textHas:
	toHas:

	printing	top
	computeTOCString Answer a string for the table of contents.
	computeTOCStringAsColumns Answer a string for the table of contents.
	dateString Answer a date string for this index entry.
	flushTOCCache Flush my cached table-of-contents entry string.
	fromStringLimit: Answer a cleaned up 'from' field for the table of contents.
	printOn: Append to the argument, aStream, a sequence of characters that identifies the receiver.
	tocString Answer a string for the table of contents.
	tocStringAsColumns Answer a string for the table of contents.

	read-write	top
	readFrom: Initialize myself from the given text stream.
	writeOn: Write a human-readable representation of myself on the given text stream.

	testing	top
	comparableString: This is for Celeste testing purposes only
	selfTestEquals: For testing and debugging purposes only, test whether the two entries are equivalent. If you expect that IndexFileEntries should be identical, the use strict equality here. Otherwise use approximate comparisons.

	instance creation	top
	message:location:messageFile:msgID: Answer a new instance of me for the given message and message file location.
	readFrom:messageFile:msgID: Answer a new instance of me initialized from the given text stream.