Document Sieve extensions

@@ -968,6 +968,35 @@ less than @var{count}, the test is true; otherwise, it is false.
 If the tagged argument is not given, @samp{:over} is assumed. 
 If the tagged argument is not given, @samp{:over} is assumed. 
 @end deftypefn
 @end deftypefn
 
 
+@deftypefn Test {} pipe [:envelope] [:header] [:body] @
+                        [:exit @var{code}(number)] @
+  	                [:signal @var{code}(number)] @
+                        @var{command}(string)
+@*Synopsis:
+@smallexample
+require "test-pipe";
+
+if pipe @var{command}
+  @{
+    @dots{}
+  @}
+@end smallexample
+@*Description: 
+The @code{pipe} test executes a shell command specified by its
+argument and pipes the entire message (including envelope) to its
+standard input.  When given, tags @code{:envelope}, @code{:header},
+and @code{:body} control what parts of the message to pipe to the command.
+
+In the absence of the @code{:exit} tag, the test returns true if
+the command exits with code 0.  If @code{:exit} is given, the test returns
+true if the command exits with code equal to its argument.
+
+The @code{:signal} tag determines the result of the test in case if the program
+exits on signal.  By default, the test returns false.  If @code{:signal}
+is given and the number of signal which caused the program to terminate
+matches its argument, the test returns true.
+@end deftypefn
+
 @deftypefn Test {} spamd [:host @var{tcp-host}(string)] @
 @deftypefn Test {} spamd [:host @var{tcp-host}(string)] @
                          [:port @var{tcp-port}(number)] @
                          [:port @var{tcp-port}(number)] @
                          [:socket @var{unix-socket}(string)] @
                          [:socket @var{unix-socket}(string)] @
@@ -1046,7 +1075,7 @@ if list @var{args}
   @}
   @}
 @end smallexample  
 @end smallexample  
 @*Description:  
 @*Description:  
-The @code{list} test evaluates to true if any of @var{headers} match any
+The @code{list} test evaluates to true if any of @var{headers} matches any
 key from @var{keys}.  Each header is regarded as containing a list of
 key from @var{keys}.  Each header is regarded as containing a list of
 keywords.  By default, comma is assumed as list separator.  This can be
 keywords.  By default, comma is assumed as list separator.  This can be
 overridden by specifying the @code{:delim} tag, whose value is a
 overridden by specifying the @code{:delim} tag, whose value is a
@@ -1362,13 +1391,13 @@ the old message in a new one.
 
 
 @node External Actions
 @node External Actions
 @subsection External Actions
 @subsection External Actions
-@UNREVISED
   GNU Mailutils is shipped with a set of external Sieve
   GNU Mailutils is shipped with a set of external Sieve
 actions.  These actions are compiled as loadable modules and must be
 actions.  These actions are compiled as loadable modules and must be
 required prior to use (@pxref{Require Statement}).
 required prior to use (@pxref{Require Statement}).
 
 
 @deftypefn Action {}  moderator [:keep] [:address @var{address}(string)] @
 @deftypefn Action {}  moderator [:keep] [:address @var{address}(string)] @
-                                [:source @var{sieve-file}(string)]
+                                [:source @var{sieve-file}(string)] @
+                                [:program @var{sieve-text}(string)]
 @*Synopsis:
 @*Synopsis:
 @smallexample
 @smallexample
 require "moderator"
 require "moderator"
@@ -1401,9 +1430,16 @@ control message, thereby causing the submission to be discarded.  The
 @code{:address} tag.  After discarding the message, @code{moderator}
 @code{:address} tag.  After discarding the message, @code{moderator}
 marks it as deleted, unless it is given @code{:keep} tag. 
 marks it as deleted, unless it is given @code{:keep} tag. 
 
 
-The argument of @code{:source} tag, if given, specifies the Sieve
-source file to be used on the message.  If @code{:tag} is not present,
-@code{moderator} will create and use a copy of the existing Sieve machine.
+If the @code{:source} tag is given, its argument specifies a Sieve
+source file to be used on the message.  Otherwise, if @code{:program}
+is given, its argument supplies a Sieve program to be used on this
+message.  At most one of these tags may be specified.  Supplying them
+both, or supplying several instances of the same tag, is an error. The
+behavior of the action in this case is undefined.
+   
+If neither @code{:program} nor @code{:source} is given,
+@code{moderator} will create a copy of the existing Sieve machine and
+use it on the message.
 
 
 The action checks the message structure: it will bail out if the message
 The action checks the message structure: it will bail out if the message
 does not have exactly 3 MIME parts, or if parts 2 and 3 are not of
 does not have exactly 3 MIME parts, or if parts 2 and 3 are not of
@@ -1421,22 +1457,19 @@ if allof(header :is "Sender" "mailman-bounces@@gnu.org",
 @end smallexample
 @end smallexample
 @end deftypefn
 @end deftypefn
 
 
-@deftypefn Action {} pipe [:envelope] @var{command}(string)
+@deftypefn Action {} pipe [:envelope] [:header] [:body] @var{command}(string)
 @*Synopsis:
 @*Synopsis:
 @smallexample
 @smallexample
 require "pipe";
 require "pipe";
-if pipe @var{args}
-  @{
-     @dots{}
-  @}
+
+pipe @var{command}
 @end smallexample
 @end smallexample
 @*Description:
 @*Description:
-The @code{pipe} action sends executes a command specified by its
-argument and sends the entire message to its standard input.  The
-@var{command} argument supplies the command line.
-
-The envelope of the message is included, if the @code{:envelope} tag
-is given. 
+The @code{pipe} action executes a shell command specified by its
+argument and pipes the entire message (including envelope) to its
+standard input.  When given, tags @code{:envelope}, @code{:header},
+and @code{:body} control what parts of the message to pipe to the
+command.
 
 
 @*Example:
 @*Example:
 The example below uses the @command{maidag} utility
 The example below uses the @command{maidag} utility
@@ -1479,12 +1512,12 @@ If the @code{:file} tag is present, @var{text} is treated as the name
 of the file to read the body of the reply message from.  When used together
 of the file to read the body of the reply message from.  When used together
 with tag @code{:rfc2822}, the file should be formatted as a valid RFC
 with tag @code{:rfc2822}, the file should be formatted as a valid RFC
 2822 message, i.e. headers followed by empty line and body.  Headers
 2822 message, i.e. headers followed by empty line and body.  Headers
-must not contain @samp{To}, @samp{From}, and @samp{Subject}, as these
+may not contain @samp{To}, @samp{From}, and @samp{Subject}, as these
 will be generated automatically.
 will be generated automatically.
 
 
 If the @code{:subject} tag is given, its argument sets the subject of
 If the @code{:subject} tag is given, its argument sets the subject of
 the message.  Otherwise, the subject is formed by prefixing original
 the message.  Otherwise, the subject is formed by prefixing original
-subject with @samp{Re:}, or @var{prefix}, given with the
+subject with @samp{Re:}, or the @var{prefix} given with the
 @code{:reply_prefix} tag.  Before prefixing, any original prefixes
 @code{:reply_prefix} tag.  Before prefixing, any original prefixes
 matching extended regular expression @var{expr} (@code{:reply_regex}
 matching extended regular expression @var{expr} (@code{:reply_regex}
 tag) are stripped from the subject line.  If @code{:reply_regex} is not
 tag) are stripped from the subject line.  If @code{:reply_regex} is not
@@ -1586,11 +1619,11 @@ may disappear from the subsequent releases.
 @item @code{fileinto} action
 @item @code{fileinto} action
 
 
 The @code{fileinto} action allows to specify permissions on the mailbox,
 The @code{fileinto} action allows to specify permissions on the mailbox,
-in case it is created (@pxref{fileinto}).
+in case it will be created (@pxref{fileinto}).
 
 
 @item Match type optional argument.
 @item Match type optional argument.
 
 
-Along with the usual @code{:is}, @code{:matches} and @code{contains}
+Along with the usual @code{:is}, @code{:matches} and @code{:contains}
 matching type, GNU sieve library understands @code{:regex} type.  This
 matching type, GNU sieve library understands @code{:regex} type.  This
 matching type toggles POSIX Extended Regular Expression matching.
 matching type toggles POSIX Extended Regular Expression matching.
 @end enumerate
 @end enumerate

@@ -16,11 +16,36 @@
    Public License along with this library.  If not, see
    Public License along with this library.  If not, see
    <http://www.gnu.org/licenses/>. */
    <http://www.gnu.org/licenses/>. */
 
 
-/* Syntax: pipe [:envelope] <program: string>
+/* The "pipe" action
+   
+   Syntax: pipe [:envelope] [:header] [:body]
+                <command: string>
 
 
    The pipe action executes a shell command specified by its
    The pipe action executes a shell command specified by its
-   argument and pipes the entire message to its standard input.
-   The envelope of the message is included, if the :envelope tag is given.
+   argument and pipes the entire message (including envelope) to its
+   standard input.  When given, tags :envelope, :header, and :body
+   control what parts of the message to pipe to the command.
+   
+   The "pipe" test
+   
+   Syntax: pipe [:envelope] [:header] [:body]
+                [:exit <code: number>]
+  	        [:signal <code: number>]
+                <command: string>
+
+   The pipe test executes a shell command specified by its
+   argument and pipes the entire message (including envelope) to its
+   standard input.  When given, tags :envelope, :header, and :body
+   control what parts of the message to pipe to the command.
+
+   In the absence of :exit and :signal tags, the test returns true if
+   the command exits with code 0.  If :exit is given, the test returns
+   true if the command exits with code equal to its argument.
+
+   The :signal tag determines the result in case if the program
+   exits on signal.  By default, the test returns false.  If :signal
+   is given and the number of signal which caused the program to terminate
+   matches its argument, the test returns true.
 		
 		
    Notes/FIXME: 1. it would be nice to implement meta-variables in
    Notes/FIXME: 1. it would be nice to implement meta-variables in
 		<program call> which would expand to various
 		<program call> which would expand to various