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authorNick Mathewson <nickm@torproject.org>2009-05-22 15:55:40 -0400
committerNick Mathewson <nickm@torproject.org>2009-05-22 15:55:40 -0400
commit5d19f13d071624d661184eb3b39d3e172af1856b (patch)
treef464d920df47df905d7bde5136fc655a80140d3a /proposals/140-consensus-diffs.txt
parentd58313c91c569b0617320d4ca9a7837f9f25f8c5 (diff)
downloadtorspec-5d19f13d071624d661184eb3b39d3e172af1856b.tar.gz
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[prop140] Note another useful restriction of ed format.
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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