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authorPhilip Hazel <ph10@hermes.cam.ac.uk>2005-11-21 10:09:12 +0000
committerPhilip Hazel <ph10@hermes.cam.ac.uk>2005-11-21 10:09:12 +0000
commit024bd3c2de076b332144a56498fbec54c763177d (patch)
tree694bf80674ee6a5ddaba6bef9e11f4f2c10893e1 /doc/doc-txt
parent533940842646f8f15ce05b0f2a3110385b153529 (diff)
Further Sieve patches (tidies and documentation).
Diffstat (limited to 'doc/doc-txt')
-rw-r--r--doc/doc-txt/ChangeLog14
-rw-r--r--doc/doc-txt/README.SIEVE34
2 files changed, 44 insertions, 4 deletions
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 8dce076fa..f9acb7dd3 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.264 2005/11/15 11:23:43 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.265 2005/11/21 10:09:12 ph10 Exp $
Change log file for Exim from version 4.21
-------------------------------------------
@@ -136,6 +136,18 @@ PH/15 If the first argument of "${if match_address" was not empty, but did not
PH/16 In autoreply, treat an empty string for "once" the same as unset.
+PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
+ extension "envelope-auth". The code is finished and in agreement with
+ other implementations, but there is no documentation so far and in fact,
+ nobody wrote the draft yet. This extension is currently #undef'ed, thus
+ not changing the active code.
+
+ Print executed "if" and "elsif" statements when debugging is used. This
+ helps a great deal to understand what a filter does.
+
+ Document more things not specified clearly in RFC3028. I had all this
+ sorted out, when out of a sudden new issues came to my mind. Oops."
+
Exim version 4.54
-----------------
diff --git a/doc/doc-txt/README.SIEVE b/doc/doc-txt/README.SIEVE
index 72f91da9c..9209dac88 100644
--- a/doc/doc-txt/README.SIEVE
+++ b/doc/doc-txt/README.SIEVE
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/README.SIEVE,v 1.8 2005/11/14 11:41:23 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/README.SIEVE,v 1.9 2005/11/21 10:09:13 ph10 Exp $
Notes on the Sieve implementation for Exim
@@ -132,7 +132,7 @@ implicit keep flag; there is no command to set it once it has
been reset.
-Semantics of Fileinto
+Semantics Of Fileinto
RFC 3028 does not specify if "fileinto" tries to create a mail folder,
in case it does not exist. This implementation allows to configure
@@ -141,7 +141,35 @@ that aspect using the appendfile transport options "create_directory",
the Exim specification for details.
-Sieve Syntax and Semantics
+Allof And Anyof Test
+
+RFC 3028 does not specify if these tests use shortcut/lazy evaluation.
+Exim uses shortcut evaluation.
+
+
+Action Reordering
+
+RFC 3028 does not specify if actions may be executed out of order.
+Exim may execute them out of order, e.g. messages may be filed to
+folders or forwarded in a different order than specified, because
+those actions only setup delivery, but do not execute it themselves.
+
+
+Wildcard Matching
+
+RFC 3028 is not exactly clear if comparators act on unicode characters
+or on octets containing their UTF-8 representation. As it turns out,
+many implementations go the second way. This does not make a difference
+but for wildcard matching and octet-wise comparison. Working on unicode
+means a dot matches a character. Working on UTF-8 means the dot matches
+a single octet of a multi-octet sequence. For octet-wise comparisons,
+working on UTF-8 means arbitrary byte sequences in headers can not be
+matches, as they are rarely correct UTF-8 sequences and can thus not be
+expressed as string literal. This implementation works on unicode, but
+this may be changed in case RFC3028bis specifies this issue safe and sound.
+
+
+Sieve Syntax And Semantics
RFC 3028 confuses syntax and semantics sometimes. It uses a generic
grammar as syntax for commands and tests and performs many checks during