[m-rev.] Minor coding standards update

[Ralph Becket]

Estimated hours taken: 0.1
Branches: main

compiler/notes/coding_standards.html:
	Added a comment regarding the use of DCG notation and state
	variables, particularly with respect to IO.

Index: compiler/notes/coding_standards.html
===================================================================
RCS file: /home/mercury1/repository/mercury/compiler/notes/coding_standards.html,v
retrieving revision 1.14
diff -u -r1.14 coding_standards.html
--- compiler/notes/coding_standards.html	14 Oct 2004 04:31:32 -0000	1.14
+++ compiler/notes/coding_standards.html	4 Mar 2005 03:49:16 -0000
@@ -118,6 +118,13 @@
 (If you really must have a fixed limit, include detailed documentation
 explaining why it was so hard to avoid.)
 
+<p>
+
+Only use DCG notation for parsing, not for threading implicit arguments.
+
+Use state variables for threading the IO state etc.  The conventional IO
+state variable name is <code>!IO</code>.
+
 <h2> Error Handling </h2>
 
 <p>
--------------------------------------------------------------------------
mercury-reviews mailing list
post:  mercury-reviews at cs.mu.oz.au
administrative address: owner-mercury-reviews at cs.mu.oz.au
unsubscribe: Address: mercury-reviews-request at cs.mu.oz.au Message: unsubscribe
subscribe:   Address: mercury-reviews-request at cs.mu.oz.au Message: subscribe
--------------------------------------------------------------------------