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authorschwarze <schwarze@openbsd.org>2017-07-06 00:08:52 +0000
committerschwarze <schwarze@openbsd.org>2017-07-06 00:08:52 +0000
commit2fe51f68b9b718c29473d59374e280deed8665e5 (patch)
tree62e4b34dbb6accd9176d33a1f152451ab2552a9d /usr.bin/mandoc/eqn_term.c
parentFix native/raw backlight support in inteldrm(4). (diff)
downloadwireguard-openbsd-2fe51f68b9b718c29473d59374e280deed8665e5.tar.xz
wireguard-openbsd-2fe51f68b9b718c29473d59374e280deed8665e5.zip
Fix operator precedence according to Brian W. Kernighan and Lorinda
L. Cherry, "Typesetting Mathematics - User's Guide (Second Edition)", August 15, 1978, paragraph 23; swarm of bugs pointed out by bentley@.
Diffstat (limited to 'usr.bin/mandoc/eqn_term.c')
-rw-r--r--usr.bin/mandoc/eqn_term.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/usr.bin/mandoc/eqn_term.c b/usr.bin/mandoc/eqn_term.c
index f41bc1d4129..503919fdbf8 100644
--- a/usr.bin/mandoc/eqn_term.c
+++ b/usr.bin/mandoc/eqn_term.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: eqn_term.c,v 1.6 2017/07/05 15:03:20 schwarze Exp $ */
+/* $OpenBSD: eqn_term.c,v 1.7 2017/07/06 00:08:52 schwarze Exp $ */
/*
* Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -111,15 +111,6 @@ eqn_box(struct termp *p, const struct eqn_box *bp)
if (bp->font != EQNFONT_NONE)
term_fontpop(p);
- if ((bp->type == EQN_LIST && bp->expectargs > 1) ||
- (bp->type == EQN_PILE && (bp->prev || bp->next)) ||
- (bp->parent != NULL && bp->parent->pos == EQNPOS_SQRT)) {
- p->flags |= TERMP_NOSPACE;
- term_word(p, bp->right != NULL ? bp->right : ")");
- if (bp->parent->type == EQN_SUBEXPR && bp->next != NULL)
- p->flags |= TERMP_NOSPACE;
- }
-
if (bp->top != NULL) {
p->flags |= TERMP_NOSPACE;
term_word(p, bp->top);
@@ -128,4 +119,12 @@ eqn_box(struct termp *p, const struct eqn_box *bp)
p->flags |= TERMP_NOSPACE;
term_word(p, "_");
}
+ if ((bp->type == EQN_LIST && bp->expectargs > 1) ||
+ (bp->type == EQN_PILE && (bp->prev || bp->next)) ||
+ (bp->parent != NULL && bp->parent->pos == EQNPOS_SQRT)) {
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, bp->right != NULL ? bp->right : ")");
+ if (bp->parent->type == EQN_SUBEXPR && bp->next != NULL)
+ p->flags |= TERMP_NOSPACE;
+ }
}