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authorIngo Schwarze <schwarze@cvs.openbsd.org>2020-10-24 22:52:35 +0000
committerIngo Schwarze <schwarze@cvs.openbsd.org>2020-10-24 22:52:35 +0000
commitbedad44e7b0c542a949440ca1dd5a52e29f7ea55 (patch)
tree050e82001d89bab5c4d1de7c81fe0f414b4231d1 /usr.bin
parent7955b5d18c86a65cdfd2483d99bf9376dede7d94 (diff)
Treat \*[.T] in the same way as \*(.T rather than calling abort(3).
Bug found because the groff-current manual pages started using the variant form of this predefined string.
Diffstat (limited to 'usr.bin')
-rw-r--r--usr.bin/mandoc/mandoc.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/usr.bin/mandoc/mandoc.c b/usr.bin/mandoc/mandoc.c
index 0b2d301dba7..265393d8a18 100644
--- a/usr.bin/mandoc/mandoc.c
+++ b/usr.bin/mandoc/mandoc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: mandoc.c,v 1.85 2020/01/19 16:16:32 schwarze Exp $ */
+/* $OpenBSD: mandoc.c,v 1.86 2020/10/24 22:52:34 schwarze Exp $ */
/*
* Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2011-2015, 2017-2020 Ingo Schwarze <schwarze@openbsd.org>
@@ -201,7 +201,18 @@ mandoc_escape(const char **end, const char **start, int *sz)
case 'O':
case 'V':
case 'Y':
- gly = (*start)[-1] == 'f' ? ESCAPE_FONT : ESCAPE_IGNORE;
+ case '*':
+ switch ((*start)[-1]) {
+ case 'f':
+ gly = ESCAPE_FONT;
+ break;
+ case '*':
+ gly = ESCAPE_DEVICE;
+ break;
+ default:
+ gly = ESCAPE_IGNORE;
+ break;
+ }
switch (**start) {
case '(':
if ((*start)[-1] == 'O')
@@ -236,13 +247,6 @@ mandoc_escape(const char **end, const char **start, int *sz)
break;
}
break;
- case '*':
- if (strncmp(*start, "(.T", 3) != 0)
- abort();
- gly = ESCAPE_DEVICE;
- *start = ++*end;
- *sz = 2;
- break;
/*
* These escapes are of the form \X'Y', where 'X' is the trigger
@@ -457,6 +461,9 @@ mandoc_escape(const char **end, const char **start, int *sz)
+ 1 == *sz)
gly = ESCAPE_UNICODE;
break;
+ case ESCAPE_DEVICE:
+ assert(*sz == 2 && (*start)[0] == '.' && (*start)[1] == 'T');
+ break;
default:
break;
}