src/pset-parse.lisp: Add a little vertical space and commentary.

[sod] / doc / syntax.tex

diff --git a/doc/syntax.tex b/doc/syntax.tex
index 75aa36e..07b7ce7 100644 (file)
--- a/doc/syntax.tex
+++ b/doc/syntax.tex
@@ -462,10 +462,10 @@ above, are as follows.
 
 \item The @|boolean| output type denotes a boolean value, which may be either
   true or false.  A value of type @|id| is considered true if it is @|true|,
-  @|t|, @|yes|, @|on|, or @|verily|; or false if it is @|false|, @|nil|,
-  @|no|, @|off|, or @|nowise|; it is erroneous to provide any other
-  identifier where a boolean value is wanted.  A value of type @|int| is
-  considered true if it is nonzero, or false if it is zero.
+  @|t|, @|yes|, @|on|, @|yup|, or @|verily|; or false if it is @|false|,
+  @|nil|, @|no|, @|off|, @|nope|, or @|nowise|; it is erroneous to provide
+  any other identifier where a boolean value is wanted.  A value of type
+  @|int| is considered true if it is nonzero, or false if it is zero.
 
 \item The @|symbol| output type denotes a Lisp symbol.
 
@@ -476,7 +476,7 @@ above, are as follows.
   upper; if the name contains letters of both cases, then it is not changed.
   For example, @|foo45| becomes @|FOO45|, or \emph{vice-versa}; but @|Splat|
   remains as it is.  Second, the name is subjected to \emph{separator
-    switching}: all underscores in the name are replaced with hyphens (and
+  switching}: all underscores in the name are replaced with hyphens (and
   \emph{vice-versa}, though hyphens aren't permitted in identifiers in the
   first place).  Finally, the resulting name is interned in the current
   package, which will usually be @|sod-user| unless changed explicitly by the
@@ -726,8 +726,9 @@ The @<list>$[\mbox{@<identifier>}]$ names the direct superclasses for the new
 class.  It is an error if any of these @<identifier>s does not name a defined
 class.  The superclass list is required, and must not be empty; listing
 @|SodObject| as your class's superclass is a good choice if nothing else
-seems suitable.  It's not possible to define a \emph{root class} in the Sod
-language: you must use Lisp to do this, and it's quite involved.
+seems suitable.  A class with no direct superclasses is called a \emph{root
+class}.  It is not possible to define a root class in the Sod language: you
+must use Lisp to do this, and it's quite involved.
 
 The @<properties> provide additional information.  The standard class
 properties are as follows.