- From: James Clark <jjc@jclark.com>
- Date: Tue, 14 Jan 1997 12:18:32 +0700
- To: w3c-sgml-wg@www10.w3.org
At 23:11 13/01/97 +0000, Peter Flynn wrote: > Let me ask the converse question: is there a rationale > *for* specifiying shunned characters? > >It makes your editor go BEEP when you try to insert Ctrl-Foo, and your >parser spew out a line complaining bitterly, thus preventing people >inserting unwanted bytes by accident or design. Actually it's not the SHUNCHAR CONTROLS that does that, it's declaring the control characters as UNUSED (ie NONSGML) in the document character set. SHUNCHAR doesn't change anything itself directly; it just constrains the document character set to declare bit combinations as UNUSED unless they are significant in the concrete syntax. Adding SHUNCHAR CONTROLS to the XML SGML declaration wouldn't make any difference. (The SHUNCHAR concept may disappear in the revision since it does not make a lot of sense in the context of the new character set model adopted by WG8 for the revision.) James
Received on Tuesday, 14 January 1997 00:24:30 UTC