Some high-level block macros have an effect similar to temporarily

suspending no-fill mode during their head.  Model this with an
additional roff parser state flag ROFF_NONOFILL.  That is much
simpler than it would be to save and restore the ROFF_NOFILL flag
itself, in particular since the latter can be switched (with lasting
effect) by the .nf and .fi requests even while its effect is
temporarily suspended.

This commit does not change formatting yet, but prepares for future
formatting simplifications and improvements.

1 files changed, 6 insertions, 6 deletions

diff --git a/man.c b/man.c
index 6bdb4d91..f0e4002b 100644
--- a/man.c
+++ b/man.c
@@ -1,7 +1,7 @@
-/*	$Id: man.c,v 1.186 2018/12/31 10:04:39 schwarze Exp $ */
+/*	$Id: man.c,v 1.187 2019/01/05 00:36:50 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2013,2014,2015,2017,2018 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2013-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2011 Joerg Sonnenberger <joerg@netbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -92,9 +92,9 @@ man_descope(struct roff_man *man, int line, int offs, char *start)
 	}
 	if ( ! (man->flags & MAN_BLINE))
 		return;
-	man->flags &= ~MAN_BLINE;
 	man_unscope(man, man->last->parent);
 	roff_body_alloc(man, line, offs, man->last->tok);
+	man->flags &= ~(MAN_BLINE | ROFF_NONOFILL);
 }
 
 static int
@@ -268,9 +268,9 @@ man_pmacro(struct roff_man *man, int ln, char *buf, int offs)
 	    man_macro(tok)->flags & MAN_NSCOPED)
 		return 1;
 
-	man->flags &= ~MAN_BLINE;
 	man_unscope(man, man->last->parent);
 	roff_body_alloc(man, ln, ppos, man->last->tok);
+	man->flags &= ~(MAN_BLINE | ROFF_NONOFILL);
 	return 1;
 }
 
@@ -313,7 +313,7 @@ man_breakscope(struct roff_man *man, int tok)
 		n = man->last;
 		man_unscope(man, n);
 		roff_body_alloc(man, n->line, n->pos, n->tok);
-		man->flags &= ~MAN_BLINE;
+		man->flags &= ~(MAN_BLINE | ROFF_NONOFILL);
 	}
 
 	/*
@@ -340,6 +340,6 @@ man_breakscope(struct roff_man *man, int tok)
 		    "%s breaks %s", roff_name[tok], roff_name[n->tok]);
 
 		roff_node_delete(man, n);
-		man->flags &= ~MAN_BLINE;
+		man->flags &= ~(MAN_BLINE | ROFF_NONOFILL);
 	}
 }