fix handling of command substitution in math context

zsh-5.0.8-cmd-subst.patch

@@ -0,0 +1,54 @@
+From 7cde13f288c79c9b3d3b2274e7b3dc1f08ee6eeb Mon Sep 17 00:00:00 2001
+From: "Barton E. Schaefer" <schaefer@zsh.org>
+Date: Wed, 29 Jul 2015 22:36:45 -0700
+Subject: [PATCH] 35953: fix handling of command substitution in math context
+
+Upstream-commit: c0a80171ee615b52a15a6fc8efe83c2bb53451d2
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ Src/lex.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/Src/lex.c b/Src/lex.c
+index 841fb0b..8710f75 100644
+--- a/Src/lex.c
++++ b/Src/lex.c
+@@ -1387,7 +1387,7 @@ dquote_parse(char endchar, int sub)
+ {
+     int pct = 0, brct = 0, bct = 0, intick = 0, err = 0;
+     int c;
+-    int math = endchar == ')' || endchar == ']';
++    int math = endchar == ')' || endchar == ']' || infor;
+     int zlemath = math && zlemetacs > zlemetall + addedx - inbufct;
+ 
+     while (((c = hgetc()) != endchar || bct ||
+@@ -1994,8 +1994,10 @@ skipcomm(void)
+ #else
+     char *new_tokstr;
+     int new_lexstop, new_lex_add_raw;
++    int save_infor = infor;
+     struct lexbufstate new_lexbuf;
+ 
++    infor = 0;
+     cmdpush(CS_CMDSUBST);
+     SETPARBEGIN
+     add(Inpar);
+@@ -2052,6 +2054,7 @@ skipcomm(void)
+      * the recursive parsing.
+      */
+     lexflags &= ~LEXFLAGS_ZLE;
++    dbparens = 0;	/* restored by zcontext_restore_partial() */
+ 
+     if (!parse_event(OUTPAR) || tok != OUTPAR)
+ 	lexstop = 1;
+@@ -2098,6 +2101,7 @@ skipcomm(void)
+     if (!lexstop)
+ 	SETPAREND
+     cmdpop();
++    infor = save_infor;
+ 
+     return lexstop;
+ #endif
+-- 
+2.4.6
+

zsh.spec

@@ -3,7 +3,7 @@
 Summary: Powerful interactive shell
 Name: zsh
 Version: 5.0.8
-Release: 5%{?dist}
+Release: 6%{?dist}
 License: MIT
 URL: http://zsh.sourceforge.net/
 Group: System Environment/Shells
@@ -30,6 +30,9 @@ Patch4: zsh-5.0.8-comp-dnf.patch
 # prevent infinite recursion in ihungetc() (#1245712)
 Patch5: zsh-5.0.8-hist-bz1245712.patch
 
+# fix handling of command substitution in math context
+Patch6: zsh-5.0.8-cmd-subst.patch
+
 BuildRequires: coreutils sed ncurses-devel libcap-devel
 BuildRequires: texinfo texi2html gawk hostname
 Requires(post): info grep
@@ -69,6 +72,7 @@ This package contains the Zsh manual in html format.
 %patch3 -p1
 %patch4 -p1
 %patch5 -p1
+%patch6 -p1
 
 cp -p %SOURCE7 .
 
@@ -186,6 +190,9 @@ fi
 %doc Doc/*.html
 
 %changelog
+* Thu Jul 30 2015 Kamil Dudka <kdudka@redhat.com> - 5.0.8-6
+- fix handling of command substitution in math context
+
 * Wed Jul 22 2015 Kamil Dudka <kdudka@redhat.com> - 5.0.8-5
 - prevent infinite recursion in ihungetc() (#1245712)