usefor-usefor-02 November 2004

3.1.5  Newsgroups

   The Newsgroups header specifies the newsgroup(s) to which the article
   is posted.

   newsgroups      =  "Newsgroups:" SP newsgroup-list CRLF

   newsgroup-list  =  [FWS] newsgroup-name
            *( [FWS] "," [FWS] newsgroup-name ) [FWS]

   newsgroup-name  =  component *( "." component )

   component       =  1*component-char

   component-char  =  ALPHA / DIGIT / "+" / "-" / "_"
      NOTE: Observe that the syntax does not allow comments within the
      Newsgroups header; this is to simplify processing by relaying and
      serving agents which have a requirement to process this header
      extremely rapidly.

   Components beginning with underline ("_") are reserved for use by
   future versions of this standard and MUST NOT occur in
   <newsgroup-name>s (whether in Newsgroups headers or in newgroup
   control messages [USEPRO]).  However, such names MUST be accepted.

   The specific format and lengths of <newsgroup-name> and <component>
   are discussed in [USEAGE].

--- ../usefor-usefor-01/Newsgroups.out          September 2004
+++ ../usefor-usefor-02/Newsgroups.out          November 2004
@@ -6,20 +6,23 @@
    newsgroups      =  "Newsgroups:" SP newsgroup-list CRLF
 
    newsgroup-list  =  [FWS] newsgroup-name
-            *( "," [FWS] newsgroup-name ) [FWS]
+            *( [FWS] "," [FWS] newsgroup-name ) [FWS]
 
-   newsgroup-name  =  component *( "." component ) ; 66 character max
+   newsgroup-name  =  component *( "." component )
 
-   component       =  plain-component
+   component       =  1*component-char
 
-   plain-component =  component-start *29component-rest
+   component-char  =  ALPHA / DIGIT / "+" / "-" / "_"
+      NOTE: Observe that the syntax does not allow comments within the
+      Newsgroups header; this is to simplify processing by relaying and
+      serving agents which have a requirement to process this header
+      extremely rapidly.
 
-   component-start =  ALPHA / DIGIT
+   Components beginning with underline ("_") are reserved for use by
+   future versions of this standard and MUST NOT occur in
+   <newsgroup-name>s (whether in Newsgroups headers or in newgroup
+   control messages [USEPRO]).  However, such names MUST be accepted.
 
-   component-rest  =  ALPHA / DIGIT / "+" / "-" / "_"
-
-   A newsgroup name consists of one or more components separated by
-   periods, with no more than 66 characters total.  Each component
-   consists of less than 30 or less letters and digits.  These limits
-   are discussed further in Section 7.2 of [USEAGE].
+   The specific format and lengths of <newsgroup-name> and <component>
+   are discussed in [USEAGE].