[prop140] Note another useful restriction of ed format.

This commit is contained in:
Nick Mathewson 2009-05-22 15:55:40 -04:00
parent a3fadddd4a
commit 9f69b3d94c

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@ -5,6 +5,11 @@ Created: 13-Jun-2008
Status: Accepted
Target: 0.2.2.x
0. History
22-May-2009: Restricted the ed format even more strictly for ease of
implementation. -nickm
1. Overview.
Tor clients and servers need a list of which relays are on the
@ -133,6 +138,10 @@ Target: 0.2.2.x
Note that line numbers always apply to the file after all previous
commands have already been applied.
The commands MUST apply to the file from back to front, such that
lines are only ever referred to by their position in the original
file.
The "current line" is either the first line of the file, if this is
the first command, the last line of a block we added in an append or
change command, or the line immediate following a set of lines we just