Implement a simple, consistent user interface for error handling.

We now have sufficient practical experience to know what we want,
so this is intended to be final:
- provide -Wlevel (warning, error or fatal) to select what you care about
- provide -Wstop to stop after parsing a file with warnings you care about
- provide consistent exit status codes for those warnings you care about
- fully document what warnings, errors and fatal errors mean
- remove all other cruft from the user interface, less is more:
- remove all -f knobs along with the whole -f option
- remove the old -Werror because calling warnings "fatal" is silly
- always finish parsing each file, unless fatal errors prevent that
This commit also includes a couple of related simplifications behind
the scenes regarding error handling.
Feedback and OK  kristaps@;  Joerg Sonnenberger (NetBSD) and
Sascha Wildner (DragonFly BSD) agree with the general direction.

1 files changed, 2 insertions, 6 deletions

diff --git a/mdoc.h b/mdoc.h
index 80390dd0..af9a63e9 100644
--- a/mdoc.h
+++ b/mdoc.h
@@ -1,4 +1,4 @@
-/*	$Id: mdoc.h,v 1.102 2010/07/21 09:08:26 kristaps Exp $ */
+/*	$Id: mdoc.h,v 1.103 2010/08/20 01:02:07 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -352,10 +352,6 @@ struct	mdoc_node {
 	} data;
 };
 
-#define	MDOC_IGN_SCOPE	 (1 << 0) /* Ignore scope violations. */
-#define	MDOC_IGN_ESCAPE	 (1 << 1) /* Ignore bad escape sequences. */
-#define	MDOC_IGN_MACRO	 (1 << 2) /* Ignore unknown macros. */
-
 /* See mdoc.3 for documentation. */
 
 extern	const char *const *mdoc_macronames;
@@ -368,7 +364,7 @@ struct	mdoc;
 /* See mdoc.3 for documentation. */
 
 void	 	  mdoc_free(struct mdoc *);
-struct	mdoc	 *mdoc_alloc(struct regset *, void *, int, mandocmsg);
+struct	mdoc	 *mdoc_alloc(struct regset *, void *, mandocmsg);
 void		  mdoc_reset(struct mdoc *);
 int	 	  mdoc_parseln(struct mdoc *, int, char *, int);
 const struct mdoc_node *mdoc_node(const struct mdoc *);