X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/52a236230220232fd632b5aa88eb9bb31dba346e..a8bb0c0d8fcfa7f5b43dee30ccfdf799bbbf8520:/h/mh.h

diff --git a/h/mh.h b/h/mh.h
index 354f3fa5..a47b7c20 100644
--- a/h/mh.h
+++ b/h/mh.h
@@ -79,7 +79,7 @@ struct swit {
 /*
  * Macros to use when declaring struct swit arrays.
  *
- * These macros are what known as X-Macros.  In your source code you
+ * These macros use a technique known as X-Macros.  In your source code you
  * use them like this:
  *
  * #define FOO_SWITCHES \
@@ -89,6 +89,10 @@ struct swit {
  *
  * The argument to each entry in FOO_SWITCHES are the switch name (sw),
  * the minchars field (see above) and the return value for this switch.
+ * Note that the last entry in the above definition must either omit the
+ * continuation backslash, or be followed by a blank line.  In the nmh
+ * code the style is to have every line include a backslash and follow
+ * the SWITCHES macro definition by a blank line.
  *
  * After you define FOO_SWITCHES, you instantiate it as follows:
  *