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authorIngo Schwarze <schwarze@cvs.openbsd.org>2011-01-16 19:27:26 +0000
committerIngo Schwarze <schwarze@cvs.openbsd.org>2011-01-16 19:27:26 +0000
commitb82ba953905f806ce4e5553c1536579080b7352e (patch)
tree3c36e823156523bc9abbcf91e0ef94a54893e075 /usr.bin/mandoc/man_macro.c
parent4cb54dc5d7dbc06a06da71e20b14c15d883a8949 (diff)
Some improvements to error handling from kristaps@:
* Make out-of-context .fi invocations not cause an error, but just a warning. * Downgrade -man message about ignored empty paragraph to MANDOC_IGNPAR. * Avoid syntax tree corruption when removing empty block macros. Triggered by some reports from brad@.
Diffstat (limited to 'usr.bin/mandoc/man_macro.c')
-rw-r--r--usr.bin/mandoc/man_macro.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/usr.bin/mandoc/man_macro.c b/usr.bin/mandoc/man_macro.c
index a30b585b91a..413cbbd56ee 100644
--- a/usr.bin/mandoc/man_macro.c
+++ b/usr.bin/mandoc/man_macro.c
@@ -1,4 +1,4 @@
-/* $Id: man_macro.c,v 1.26 2011/01/04 22:28:17 schwarze Exp $ */
+/* $Id: man_macro.c,v 1.27 2011/01/16 19:27:25 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
*
@@ -103,19 +103,27 @@ rew_warn(struct man *m, struct man_node *n, enum mandocerr er)
* will be used if an explicit block scope is being closed out.
*/
int
-man_unscope(struct man *m, const struct man_node *n,
+man_unscope(struct man *m, const struct man_node *to,
enum mandocerr er)
{
+ struct man_node *n;
- assert(n);
+ assert(to);
/* LINTED */
- while (m->last != n) {
+ while (m->last != to) {
+ /*
+ * Save the parent here, because we may delete the
+ * m->last node in the post-validation phase and reset
+ * it to m->last->parent, causing a step in the closing
+ * out to be lost.
+ */
+ n = m->last->parent;
if ( ! rew_warn(m, m->last, er))
return(0);
if ( ! man_valid_post(m))
return(0);
- m->last = m->last->parent;
+ m->last = n;
assert(m->last);
}