===================================================================
RCS file: /cvs/mandoc/libmdoc.h,v
retrieving revision 1.69
retrieving revision 1.70
diff -u -p -r1.69 -r1.70
--- mandoc/libmdoc.h	2011/03/20 16:02:05	1.69
+++ mandoc/libmdoc.h	2011/03/22 14:05:45	1.70
@@ -1,4 +1,4 @@
-/*	$Id: libmdoc.h,v 1.69 2011/03/20 16:02:05 kristaps Exp $ */
+/*	$Id: libmdoc.h,v 1.70 2011/03/22 14:05:45 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -80,6 +80,23 @@ enum	margverr {
 	ARGV_WORD
 };
 
+/*
+ * A punctuation delimiter is opening, closing, or "middle mark"
+ * punctuation.  These govern spacing.
+ * Opening punctuation (e.g., the opening parenthesis) suppresses the
+ * following space; closing punctuation (e.g., the closing parenthesis)
+ * suppresses the leading space; middle punctuation (e.g., the vertical
+ * bar) can do either.  The middle punctuation delimiter bends the rules
+ * depending on usage.
+ */
+enum	mdelim {
+	DELIM_NONE = 0,
+	DELIM_OPEN,
+	DELIM_MIDDLE,
+	DELIM_CLOSE,
+	DELIM_MAX
+};
+
 extern	const struct mdoc_macro *const mdoc_macros;
 
 __BEGIN_DECLS
@@ -125,6 +142,9 @@ enum margserr	  mdoc_zargs(struct mdoc *, int, 
 #define	ARGS_NOWARN	(1 << 3)
 
 int		  mdoc_macroend(struct mdoc *);
+
+#define	DELIMSZ	  6 /* hint: max possible size of a delimiter */
+enum mdelim	  mdoc_isdelim(const char *);
 
 __END_DECLS