===================================================================
RCS file: /cvs/mandoc/libmdoc.h,v
retrieving revision 1.69
retrieving revision 1.73
diff -u -p -r1.69 -r1.73
--- mandoc/libmdoc.h	2011/03/20 16:02:05	1.69
+++ mandoc/libmdoc.h	2011/04/17 09:08:19	1.73
@@ -1,4 +1,4 @@
-/*	$Id: libmdoc.h,v 1.69 2011/03/20 16:02:05 kristaps Exp $ */
+/*	$Id: libmdoc.h,v 1.73 2011/04/17 09:08:19 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -17,8 +17,6 @@
 #ifndef LIBMDOC_H
 #define LIBMDOC_H
 
-#include "mdoc.h"
-
 enum	mdoc_next {
 	MDOC_NEXT_SIBLING = 0,
 	MDOC_NEXT_CHILD
@@ -64,22 +62,39 @@ struct	mdoc_macro {
 
 enum	margserr {
 	ARGS_ERROR,
-	ARGS_EOLN,
-	ARGS_WORD,
-	ARGS_PUNCT,
-	ARGS_QWORD,
-	ARGS_PHRASE,
-	ARGS_PPHRASE,
-	ARGS_PEND
+	ARGS_EOLN, /* end-of-line */
+	ARGS_WORD, /* normal word */
+	ARGS_PUNCT, /* series of punctuation */
+	ARGS_QWORD, /* quoted word */
+	ARGS_PHRASE, /* Ta'd phrase (-column) */
+	ARGS_PPHRASE, /* tabbed phrase (-column) */
+	ARGS_PEND /* last phrase (-column) */
 };
 
 enum	margverr {
 	ARGV_ERROR,
-	ARGV_EOLN,
-	ARGV_ARG,
-	ARGV_WORD
+	ARGV_EOLN, /* end of line */
+	ARGV_ARG, /* valid argument */
+	ARGV_WORD /* normal word (or bad argument---same thing) */
 };
 
+/*
+ * 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
@@ -115,7 +130,6 @@ int		  mdoc_valid_post(struct mdoc *);
 enum margverr	  mdoc_argv(struct mdoc *, int, enum mdoct,
 			struct mdoc_arg **, int *, char *);
 void		  mdoc_argv_free(struct mdoc_arg *);
-void		  mdoc_argn_free(struct mdoc_arg *, int);
 enum margserr	  mdoc_args(struct mdoc *, int,
 			int *, char *, enum mdoct, char **);
 enum margserr	  mdoc_zargs(struct mdoc *, int, 
@@ -125,6 +139,9 @@ 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