Add a note about preferred window width to the section about code

formatting conventions.

diff --git a/doc/src/sgml/sources.sgml b/doc/src/sgml/sources.sgml
index ec33170f691e4dd99d4bd8b793c10f3ed23ceb95..47bb2813d68286eaf1504f7664d599d877d46539 100644 (file)
--- a/doc/src/sgml/sources.sgml
+++ b/doc/src/sgml/sources.sgml
@@ -1,4 +1,4 @@
-
+
 
  
   PostgreSQL Coding Conventions
@@ -18,6 +18,13 @@
     while, switch, etc go on their own lines.
    
 
+   
+    Limit line lengths so that the code is readable in an 80-column window.
+    (This doesn't mean that you must never go past 80 columns.  For instance,
+    breaking a long error message string in arbitrary places just to keep the
+    code within 80 columns is probably not a net gain in readability.)
+   
+
    
     Do not use C++ style comments (// comments).  Strict ANSI C
     compilers do not accept them.  For the same reason, do not use C++
@@ -50,6 +57,8 @@
     rules, it's a good idea to do so.  Your code will get run through
     pgindent before the next release, so there's no point in
     making it look nice under some other set of formatting conventions.
+    A good rule of thumb for patches is make the new code look like
+    the existing code around it.