Imported Upstream version 0.5.10upstream/0.5.10

21 files changed, 419 insertions, 294 deletions

diff --git a/config.h.in b/config.h.in
index 7a2b262..38274d2 100644
--- a/config.h.in
+++ b/config.h.in
@@ -79,6 +79,9 @@
 /* Define to 1 if you have the `strtoumax' function. */
 #undef HAVE_STRTOUMAX
 
+/* Define if your `struct stat' has `st_mtim' */
+#undef HAVE_ST_MTIM
+
 /* Define to 1 if you have the `sysconf' function. */
 #undef HAVE_SYSCONF
 
diff --git a/configure b/configure
index d5da219..7910897 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for dash 0.5.9.1.
+# Generated by GNU Autoconf 2.69 for dash 0.5.10.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -577,8 +577,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='dash'
 PACKAGE_TARNAME='dash'
-PACKAGE_VERSION='0.5.9.1'
-PACKAGE_STRING='dash 0.5.9.1'
+PACKAGE_VERSION='0.5.10'
+PACKAGE_STRING='dash 0.5.10'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -1269,7 +1269,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures dash 0.5.9.1 to adapt to many kinds of systems.
+\`configure' configures dash 0.5.10 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1335,7 +1335,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of dash 0.5.9.1:";;
+     short | recursive ) echo "Configuration of dash 0.5.10:";;
    esac
   cat <<\_ACEOF
 
@@ -1440,7 +1440,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-dash configure 0.5.9.1
+dash configure 0.5.10
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2034,7 +2034,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by dash $as_me 0.5.9.1, which was
+It was created by dash $as_me 0.5.10, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2849,7 +2849,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='dash'
- VERSION='0.5.9.1'
+ VERSION='0.5.10'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -4715,6 +4715,35 @@ $as_echo "#define open64 open" >>confdefs.h
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for stat::st_mtim" >&5
+$as_echo_n "checking for stat::st_mtim... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <time.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+int
+main ()
+{
+struct stat foo; return sizeof(foo.st_mtim.tv_sec)
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  have_st_mtim=yes
+else
+  have_st_mtim=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_st_mtim" >&5
+$as_echo "$have_st_mtim" >&6; }
+if test "$have_st_mtim" = "yes"; then
+
+$as_echo "#define HAVE_ST_MTIM 1" >>confdefs.h
+
+fi
+
 
 # Check whether --with-libedit was given.
 if test "${with_libedit+set}" = set; then :
@@ -5313,7 +5342,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by dash $as_me 0.5.9.1, which was
+This file was extended by dash $as_me 0.5.10, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5379,7 +5408,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-dash config.status 0.5.9.1
+dash config.status 0.5.10
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 9c4ced8..c36f949 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
-AC_INIT(dash, 0.5.9.1)
-AM_INIT_AUTOMAKE([foreign])
+AC_INIT(dash, 0.5.10)
+AM_INIT_AUTOMAKE([foreign subdir-objects])
 AC_CONFIG_SRCDIR([src/main.c])
 
 AC_CONFIG_HEADERS(config.h)
@@ -149,6 +149,20 @@ AC_CHECK_FUNC(open64,, [
 	AC_DEFINE(open64, open, [64-bit operations are the same as 32-bit])
 ])
 
+dnl Check if struct stat has st_mtim.
+AC_MSG_CHECKING(for stat::st_mtim)
+AC_COMPILE_IFELSE(
+[AC_LANG_PROGRAM([#include <time.h>
+#include <sys/time.h>
+#include <sys/stat.h>],
+[struct stat foo; return sizeof(foo.st_mtim.tv_sec)])],
+have_st_mtim=yes, have_st_mtim=no)
+AC_MSG_RESULT($have_st_mtim)
+if test "$have_st_mtim" = "yes"; then
+	AC_DEFINE([HAVE_ST_MTIM], [1],
+		[Define if your `struct stat' has `st_mtim'])
+fi
+
 AC_ARG_WITH(libedit, AS_HELP_STRING(--with-libedit, [Compile with libedit support]))
 use_libedit=
 if test "$with_libedit" = "yes"; then
diff --git a/src/Makefile.in b/src/Makefile.in
index 0bd9ad1..059c6e1 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -62,6 +62,7 @@ CONFIG_CLEAN_FILES =
 CONFIG_CLEAN_VPATH_FILES =
 am__installdirs = "$(DESTDIR)$(bindir)" "$(DESTDIR)$(man1dir)"
 PROGRAMS = $(bin_PROGRAMS)
+am__dirstamp = $(am__leading_dot)dirstamp
 am__objects_1 = alias.$(OBJEXT) arith_yacc.$(OBJEXT) \
 	arith_yylex.$(OBJEXT) cd.$(OBJEXT) error.$(OBJEXT) \
 	eval.$(OBJEXT) exec.$(OBJEXT) expand.$(OBJEXT) \
@@ -69,8 +70,8 @@ am__objects_1 = alias.$(OBJEXT) arith_yacc.$(OBJEXT) \
 	mail.$(OBJEXT) main.$(OBJEXT) memalloc.$(OBJEXT) \
 	miscbltin.$(OBJEXT) mystring.$(OBJEXT) options.$(OBJEXT) \
 	parser.$(OBJEXT) redir.$(OBJEXT) show.$(OBJEXT) trap.$(OBJEXT) \
-	output.$(OBJEXT) printf.$(OBJEXT) system.$(OBJEXT) \
-	test.$(OBJEXT) times.$(OBJEXT) var.$(OBJEXT)
+	output.$(OBJEXT) bltin/printf.$(OBJEXT) system.$(OBJEXT) \
+	bltin/test.$(OBJEXT) bltin/times.$(OBJEXT) var.$(OBJEXT)
 am_dash_OBJECTS = $(am__objects_1)
 dash_OBJECTS = $(am_dash_OBJECTS)
 dash_DEPENDENCIES = builtins.o init.o nodes.o signames.o syntax.o
@@ -329,12 +330,27 @@ uninstall-binPROGRAMS:
 
 clean-binPROGRAMS:
 	-test -z "$(bin_PROGRAMS)" || rm -f $(bin_PROGRAMS)
+bltin/$(am__dirstamp):
+	@$(MKDIR_P) bltin
+	@: > bltin/$(am__dirstamp)
+bltin/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) bltin/$(DEPDIR)
+	@: > bltin/$(DEPDIR)/$(am__dirstamp)
+bltin/printf.$(OBJEXT): bltin/$(am__dirstamp) \
+	bltin/$(DEPDIR)/$(am__dirstamp)
+bltin/test.$(OBJEXT): bltin/$(am__dirstamp) \
+	bltin/$(DEPDIR)/$(am__dirstamp)
+bltin/times.$(OBJEXT): bltin/$(am__dirstamp) \
+	bltin/$(DEPDIR)/$(am__dirstamp)
 dash$(EXEEXT): $(dash_OBJECTS) $(dash_DEPENDENCIES) $(EXTRA_dash_DEPENDENCIES) 
 	@rm -f dash$(EXEEXT)
 	$(LINK) $(dash_OBJECTS) $(dash_LDADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
+	-rm -f bltin/printf.$(OBJEXT)
+	-rm -f bltin/test.$(OBJEXT)
+	-rm -f bltin/times.$(OBJEXT)
 
 distclean-compile:
 	-rm -f *.tab.c
@@ -358,70 +374,30 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/options.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/output.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parser.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/printf.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/redir.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/show.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/system.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/test.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/times.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/trap.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/var.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@bltin/$(DEPDIR)/printf.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@bltin/$(DEPDIR)/test.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@bltin/$(DEPDIR)/times.Po@am__quote@
 
 .c.o:
-@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@am__fastdepCC_TRUE@	depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(COMPILE) -c $<
+@am__fastdepCC_FALSE@	$(COMPILE) -c -o $@ $<
 
 .c.obj:
-@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@am__fastdepCC_TRUE@	depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(COMPILE) -c `$(CYGPATH_W) '$<'`
-
-printf.o: bltin/printf.c
-@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT printf.o -MD -MP -MF $(DEPDIR)/printf.Tpo -c -o printf.o `test -f 'bltin/printf.c' || echo '$(srcdir)/'`bltin/printf.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/printf.Tpo $(DEPDIR)/printf.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='bltin/printf.c' object='printf.o' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o printf.o `test -f 'bltin/printf.c' || echo '$(srcdir)/'`bltin/printf.c
-
-printf.obj: bltin/printf.c
-@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT printf.obj -MD -MP -MF $(DEPDIR)/printf.Tpo -c -o printf.obj `if test -f 'bltin/printf.c'; then $(CYGPATH_W) 'bltin/printf.c'; else $(CYGPATH_W) '$(srcdir)/bltin/printf.c'; fi`
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/printf.Tpo $(DEPDIR)/printf.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='bltin/printf.c' object='printf.obj' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o printf.obj `if test -f 'bltin/printf.c'; then $(CYGPATH_W) 'bltin/printf.c'; else $(CYGPATH_W) '$(srcdir)/bltin/printf.c'; fi`
-
-test.o: bltin/test.c
-@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT test.o -MD -MP -MF $(DEPDIR)/test.Tpo -c -o test.o `test -f 'bltin/test.c' || echo '$(srcdir)/'`bltin/test.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/test.Tpo $(DEPDIR)/test.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='bltin/test.c' object='test.o' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o test.o `test -f 'bltin/test.c' || echo '$(srcdir)/'`bltin/test.c
-
-test.obj: bltin/test.c
-@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT test.obj -MD -MP -MF $(DEPDIR)/test.Tpo -c -o test.obj `if test -f 'bltin/test.c'; then $(CYGPATH_W) 'bltin/test.c'; else $(CYGPATH_W) '$(srcdir)/bltin/test.c'; fi`
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/test.Tpo $(DEPDIR)/test.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='bltin/test.c' object='test.obj' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o test.obj `if test -f 'bltin/test.c'; then $(CYGPATH_W) 'bltin/test.c'; else $(CYGPATH_W) '$(srcdir)/bltin/test.c'; fi`
-
-times.o: bltin/times.c
-@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT times.o -MD -MP -MF $(DEPDIR)/times.Tpo -c -o times.o `test -f 'bltin/times.c' || echo '$(srcdir)/'`bltin/times.c
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/times.Tpo $(DEPDIR)/times.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='bltin/times.c' object='times.o' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o times.o `test -f 'bltin/times.c' || echo '$(srcdir)/'`bltin/times.c
-
-times.obj: bltin/times.c
-@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT times.obj -MD -MP -MF $(DEPDIR)/times.Tpo -c -o times.obj `if test -f 'bltin/times.c'; then $(CYGPATH_W) 'bltin/times.c'; else $(CYGPATH_W) '$(srcdir)/bltin/times.c'; fi`
-@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/times.Tpo $(DEPDIR)/times.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='bltin/times.c' object='times.obj' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o times.obj `if test -f 'bltin/times.c'; then $(CYGPATH_W) 'bltin/times.c'; else $(CYGPATH_W) '$(srcdir)/bltin/times.c'; fi`
+@am__fastdepCC_FALSE@	$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
 install-man1: $(man_MANS)
 	@$(NORMAL_INSTALL)
 	@list1=''; \
@@ -597,6 +573,8 @@ clean-generic:
 distclean-generic:
 	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
 	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-rm -f bltin/$(DEPDIR)/$(am__dirstamp)
+	-rm -f bltin/$(am__dirstamp)
 
 maintainer-clean-generic:
 	@echo "This command is intended for maintainers to use"
@@ -607,7 +585,7 @@ clean: clean-am
 clean-am: clean-binPROGRAMS clean-generic mostlyclean-am
 
 distclean: distclean-am
-	-rm -rf ./$(DEPDIR)
+	-rm -rf ./$(DEPDIR) bltin/$(DEPDIR)
 	-rm -f Makefile
 distclean-am: clean-am distclean-compile distclean-generic \
 	distclean-tags
@@ -653,7 +631,7 @@ install-ps-am:
 installcheck-am:
 
 maintainer-clean: maintainer-clean-am
-	-rm -rf ./$(DEPDIR)
+	-rm -rf ./$(DEPDIR) bltin/$(DEPDIR)
 	-rm -f Makefile
 maintainer-clean-am: distclean-am maintainer-clean-generic
 
diff --git a/src/bltin/printf.c b/src/bltin/printf.c
index a626cee..7785735 100644
--- a/src/bltin/printf.c
+++ b/src/bltin/printf.c
@@ -98,20 +98,27 @@ static int print_escape_str(const char *f, int *param, int *array, char *s)
 	int total;
 
 	setstackmark(&smark);
-	done = conv_escape_str(s, &p);
-	q = stackblock();
-	len = p - q;
+	done = conv_escape_str(s, &q);
+	p = stackblock();
+	len = q - p;
+	total = len - 1;
+
+	q[-1] = (!!((f[1] - 's') | done) - 1) & f[2];
+	total += !!q[-1];
+	if (f[1] == 's')
+		goto easy;
 
-	p = makestrspace(len, p);
-	memset(p, 'X', len - 1);
-	p[len - 1] = 0;
+	p = makestrspace(len, q);
+	memset(p, 'X', total);
+	p[total] = 0;
 
 	q = stackblock();
 	total = ASPF(&p, f, p);
 
 	len = strchrnul(p, 'X') - p;
-	memcpy(p + len, q, strchrnul(p + len, ' ') - (p + len));
+	memcpy(p + len, q, strspn(p + len, "X"));
 
+easy:
 	out1mem(p, total);
 
 	popstackmark(&smark);
@@ -209,6 +216,7 @@ pc:
 				if (print_escape_str(start, param, array,
 						     getstr()))
 					goto out;
+				*fmt = 'b';
 				break;
 			case 'c': {
 				int p = getchr();
@@ -449,21 +457,22 @@ check_conversion(const char *s, const char *ep)
 int
 echocmd(int argc, char **argv)
 {
+	const char *lastfmt = snlfmt;
 	int nonl;
 
-	nonl = *++argv ? equal(*argv, "-n") : 0;
-	argv += nonl;
+	if (*++argv && equal(*argv, "-n")) {
+		argv++;
+		lastfmt = "%s";
+	}
 
 	do {
-		int c;
+		const char *fmt = "%s ";
+		char *s = *argv;
 
-		if (likely(*argv))
-			nonl += print_escape_str("%s", NULL, NULL, *argv++);
-		if (likely((nonl + !*argv) > 1))
-			break;
+		if (!s || !*++argv)
+			fmt = lastfmt;
 
-		c = *argv ? ' ' : '\n';
-		out1c(c);
-	} while (*argv);
+		nonl = print_escape_str(fmt, NULL, NULL, s ?: nullstr);
+	} while (!nonl && *argv);
 	return 0;
 }
diff --git a/src/bltin/test.c b/src/bltin/test.c
index 58c05fe..d1458df 100644
--- a/src/bltin/test.c
+++ b/src/bltin/test.c
@@ -476,9 +476,17 @@ newerf (const char *f1, const char *f2)
 {
 	struct stat b1, b2;
 
+#ifdef HAVE_ST_MTIM
+	return (stat (f1, &b1) == 0 &&
+		stat (f2, &b2) == 0 &&
+		( b1.st_mtim.tv_sec > b2.st_mtim.tv_sec ||
+		 (b1.st_mtim.tv_sec == b2.st_mtim.tv_sec && (b1.st_mtim.tv_nsec > b2.st_mtim.tv_nsec )))
+	);
+#else
 	return (stat (f1, &b1) == 0 &&
 		stat (f2, &b2) == 0 &&
 		b1.st_mtime > b2.st_mtime);
+#endif
 }
 
 static int
@@ -486,9 +494,17 @@ olderf (const char *f1, const char *f2)
 {
 	struct stat b1, b2;
 
+#ifdef HAVE_ST_MTIM
+	return (stat (f1, &b1) == 0 &&
+		stat (f2, &b2) == 0 &&
+		(b1.st_mtim.tv_sec < b2.st_mtim.tv_sec ||
+		 (b1.st_mtim.tv_sec == b2.st_mtim.tv_sec && (b1.st_mtim.tv_nsec < b2.st_mtim.tv_nsec )))
+	);
+#else
 	return (stat (f1, &b1) == 0 &&
 		stat (f2, &b2) == 0 &&
 		b1.st_mtime < b2.st_mtime);
+#endif
 }
 
 static int
diff --git a/src/dash.1 b/src/dash.1
index 8b8026d..c452c3f 100644
--- a/src/dash.1
+++ b/src/dash.1
@@ -606,11 +606,11 @@ and
 .Dq ||
 are AND-OR list operators.
 .Dq &&
-executes the first command, and then executes the second command iff the
-exit status of the first command is zero.
+executes the first command, and then executes the second command if and only
+if the exit status of the first command is zero.
 .Dq ||
-is similar, but executes the second command iff the exit status of the first
-command is nonzero.
+is similar, but executes the second command if and only if the exit status
+of the first command is nonzero.
 .Dq &&
 and
 .Dq ||
@@ -2226,13 +2226,12 @@ This mode uses commands, described below,
 similar to a subset of those described in the vi man page.
 The command
 .Ql set -o vi
-enables vi-mode editing and place sh into vi insert mode.
+enables vi-mode editing and places sh into vi insert mode.
 With vi-mode
 enabled, sh can be switched between insert mode and command mode.
-The editor is not described in full here, but will be in a later document.
-It's similar to vi: typing
+It is similar to vi: typing
 .Aq ESC
-will throw you into command VI command mode.
+enters vi command mode.
 Hitting
 .Aq return
 while in command mode will pass the line to the shell.
diff --git a/src/eval.c b/src/eval.c
index 7498f9d..a27d657 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -694,6 +694,7 @@ evalcommand(union node *cmd, int flags)
 #endif
 {
 	struct localvar_list *localvar_stop;
+	struct parsefile *file_stop;
 	struct redirtab *redir_stop;
 	struct stackmark smark;
 	union node *argp;
@@ -722,6 +723,7 @@ evalcommand(union node *cmd, int flags)
 	TRACE(("evalcommand(0x%lx, %d) called\n", (long)cmd, flags));
 	setstackmark(&smark);
 	localvar_stop = pushlocalvars();
+	file_stop = parsefile;
 	back_exitstatus = 0;
 
 	cmdentry.cmdtype = CMDBUILTIN;
@@ -848,6 +850,8 @@ bail:
 		goto out;
 	}
 
+	jp = NULL;
+
 	/* Execute the command. */
 	switch (cmdentry.cmdtype) {
 	default:
@@ -856,7 +860,6 @@ bail:
 			INTOFF;
 			jp = makejob(cmd, 1);
 			if (forkshell(jp, cmd, FORK_FG) != 0) {
-				status = waitforjob(jp);
 				INTON;
 				break;
 			}
@@ -875,26 +878,26 @@ bail:
 		if (evalbltin(cmdentry.u.cmd, argc, argv, flags)) {
 			if (exception == EXERROR && spclbltin <= 0) {
 				FORCEINTON;
-				goto readstatus;
+				break;
 			}
 raise:
 			longjmp(handler->loc, 1);
 		}
-		goto readstatus;
+		break;
 
 	case CMDFUNCTION:
-		poplocalvars(1);
 		if (evalfun(cmdentry.u.func, argc, argv, flags))
 			goto raise;
-readstatus:
-		status = exitstatus;
 		break;
 	}
 
+	status = waitforjob(jp);
+
 out:
 	if (cmd->ncmd.redirect)
 		popredir(execcmd);
 	unwindredir(redir_stop);
+	unwindfiles(file_stop);
 	unwindlocalvars(localvar_stop);
 	if (lastarg)
 		/* dsl: I think this is intended to be used to support
@@ -967,9 +970,7 @@ evalfun(struct funcnode *func, int argc, char **argv, int flags)
 	shellparam.p = argv + 1;
 	shellparam.optind = 1;
 	shellparam.optoff = -1;
-	pushlocalvars();
 	evaltree(func->n.ndefun.body, flags & EV_TESTED);
-	poplocalvars(0);
 funcdone:
 	INTOFF;
 	loopnest = saveloopnest;
diff --git a/src/exec.c b/src/exec.c
index ec0eadd..e9e29b7 100644
--- a/src/exec.c
+++ b/src/exec.c
@@ -743,8 +743,6 @@ describe_command(out, command, path, verbose)
 	struct tblentry *cmdp;
 	const struct alias *ap;
 
-	path = path ?: pathval();
-
 	if (verbose) {
 		outstr(command, out);
 	}
@@ -767,8 +765,17 @@ describe_command(out, command, path, verbose)
 		goto out;
 	}
 
-	/* Then check if it is a tracked alias */
-	if ((cmdp = cmdlookup(command, 0)) != NULL) {
+	/* Then if the standard search path is used, check if it is
+	 * a tracked alias.
+	 */
+	if (path == NULL) {
+		path = pathval();
+		cmdp = cmdlookup(command, 0);
+	} else {
+		cmdp = NULL;
+	}
+
+	if (cmdp != NULL) {
 		entry.cmdtype = cmdp->cmdtype;
 		entry.u = cmdp->param;
 	} else {
diff --git a/src/expand.c b/src/expand.c
index 2a50830..7ed259a 100644
--- a/src/expand.c
+++ b/src/expand.c
@@ -45,7 +45,9 @@
 #include <inttypes.h>
 #include <limits.h>
 #include <string.h>
+#ifdef HAVE_FNMATCH
 #include <fnmatch.h>
+#endif
 #ifdef HAVE_GLOB
 #include <glob.h>
 #endif
@@ -83,7 +85,7 @@
 #define RMESCAPE_HEAP	0x10	/* Malloc strings instead of stalloc */
 
 /* Add CTLESC when necessary. */
-#define QUOTES_ESC	(EXP_FULL | EXP_CASE | EXP_QPAT)
+#define QUOTES_ESC	(EXP_FULL | EXP_CASE)
 /* Do not skip NUL characters. */
 #define QUOTES_KEEPNUL	EXP_TILDE
 
@@ -117,12 +119,12 @@ STATIC const char *subevalvar(char *, char *, int, int, int, int, int);
 STATIC char *evalvar(char *, int);
 STATIC size_t strtodest(const char *, const char *, int);
 STATIC void memtodest(const char *, size_t, const char *, int);
-STATIC ssize_t varvalue(char *, int, int, int *);
+STATIC ssize_t varvalue(char *, int, int, int);
 STATIC void expandmeta(struct strlist *, int);
 #ifdef HAVE_GLOB
 STATIC void addglob(const glob_t *);
 #else
-STATIC void expmeta(char *, char *);
+STATIC void expmeta(char *, unsigned, unsigned);
 STATIC struct strlist *expsort(struct strlist *);
 STATIC struct strlist *msort(struct strlist *, int);
 #endif
@@ -316,13 +318,13 @@ start:
 		case CTLENDVAR: /* ??? */
 			goto breakloop;
 		case CTLQUOTEMARK:
-			inquotes ^= EXP_QUOTED;
 			/* "$@" syntax adherence hack */
-			if (inquotes && !memcmp(p, dolatstr + 1,
-						DOLATSTRLEN - 1)) {
-				p = evalvar(p + 1, flag | inquotes) + 1;
+			if (!inquotes && !memcmp(p, dolatstr + 1,
+						 DOLATSTRLEN - 1)) {
+				p = evalvar(p + 1, flag | EXP_QUOTED) + 1;
 				goto start;
 			}
+			inquotes ^= EXP_QUOTED;
 addquote:
 			if (flag & QUOTES_ESC) {
 				p--;
@@ -333,16 +335,6 @@ addquote:
 		case CTLESC:
 			startloc++;
 			length++;
-
-			/*
-			 * Quoted parameter expansion pattern: remove quote
-			 * unless inside inner quotes or we have a literal
-			 * backslash.
-			 */
-			if (((flag | inquotes) & (EXP_QPAT | EXP_QUOTED)) ==
-			    EXP_QPAT && *p != '\\')
-				break;
-
 			goto addquote;
 		case CTLVAR:
 			p = evalvar(p, flag | inquotes);
@@ -651,8 +643,7 @@ subevalvar(char *p, char *str, int strloc, int subtype, int startloc, int varfla
 	char *(*scan)(char *, char *, char *, char *, int , int);
 
 	argstr(p, EXP_TILDE | (subtype != VSASSIGN && subtype != VSQUESTION ?
-			       (flag & (EXP_QUOTED | EXP_QPAT) ?
-			        EXP_QPAT : EXP_CASE) : 0));
+			       EXP_CASE : 0));
 	STPUTC('\0', expdest);
 	argbackq = saveargbackq;
 	startp = stackblock() + startloc;
@@ -721,7 +712,6 @@ evalvar(char *p, int flag)
 	int c;
 	int startloc;
 	ssize_t varlen;
-	int easy;
 	int quoted;
 
 	varflags = *p++;
@@ -732,12 +722,11 @@ evalvar(char *p, int flag)
 
 	quoted = flag & EXP_QUOTED;
 	var = p;
-	easy = (!quoted || (*var == '@' && shellparam.nparam));
 	startloc = expdest - (char *)stackblock();
 	p = strchr(p, '=') + 1;
 
 again:
-	varlen = varvalue(var, varflags, flag, &quoted);
+	varlen = varvalue(var, varflags, flag, quoted);
 	if (varflags & VSNUL)
 		varlen--;
 
@@ -780,8 +769,11 @@ vsplus:
 
 	if (subtype == VSNORMAL) {
 record:
-		if (!easy)
-			goto end;
+		if (quoted) {
+			quoted = *var == '@' && shellparam.nparam;
+			if (!quoted)
+				goto end;
+		}
 		recordregion(startloc, expdest - (char *)stackblock(), quoted);
 		goto end;
 	}
@@ -857,8 +849,7 @@ memtodest(const char *p, size_t len, const char *syntax, int quotes) {
 		if (c) {
 			if ((quotes & QUOTES_ESC) &&
 			    ((syntax[c] == CCTL) ||
-			     (((quotes & EXP_FULL) || syntax != BASESYNTAX) &&
-			      syntax[c] == CBACK)))
+			     (syntax != BASESYNTAX && syntax[c] == CBACK)))
 				USTPUTC(CTLESC, q);
 		} else if (!(quotes & QUOTES_KEEPNUL))
 			continue;
@@ -887,7 +878,7 @@ strtodest(p, syntax, quotes)
  */
 
 STATIC ssize_t
-varvalue(char *name, int varflags, int flags, int *quotedp)
+varvalue(char *name, int varflags, int flags, int quoted)
 {
 	int num;
 	char *p;
@@ -896,11 +887,11 @@ varvalue(char *name, int varflags, int flags, int *quotedp)
 	char sepc;
 	char **ap;
 	char const *syntax;
-	int quoted = *quotedp;
 	int subtype = varflags & VSTYPE;
 	int discard = subtype == VSPLUS || subtype == VSLENGTH;
 	int quotes = (discard ? 0 : (flags & QUOTES_ESC)) | QUOTES_KEEPNUL;
 	ssize_t len = 0;
+	char c;
 
 	sep = (flags & EXP_FULL) << CHAR_BIT;
 	syntax = quoted ? DQSYNTAX : BASESYNTAX;
@@ -925,7 +916,7 @@ numvar:
 	case '-':
 		p = makestrspace(NOPTS, expdest);
 		for (i = NOPTS - 1; i >= 0; i--) {
-			if (optlist[i]) {
+			if (optlist[i] && optletters[i]) {
 				USTPUTC(optletters[i], p);
 				len++;
 			}
@@ -937,12 +928,25 @@ numvar:
 			goto param;
 		/* fall through */
 	case '*':
-		if (quoted)
-			sep = 0;
-		sep |= ifsset() ? ifsval()[0] : ' ';
+		/* We will set c to 0 or ~0 depending on whether
+		 * we're doing field splitting.  We won't do field
+		 * splitting if either we're quoted or sep is zero.
+		 *
+		 * Instead of testing (quoted || !sep) the following
+		 * trick optimises away any branches by using the
+		 * fact that EXP_QUOTED (which is the only bit that
+		 * can be set in quoted) is the same as EXP_FULL <<
+		 * CHAR_BIT (which is the only bit that can be set
+		 * in sep).
+		 */
+#if EXP_QUOTED >> CHAR_BIT != EXP_FULL
+#error The following two lines expect EXP_QUOTED == EXP_FULL << CHAR_BIT
+#endif
+		c = !((quoted | ~sep) & EXP_QUOTED) - 1;
+		sep &= ~quoted;
+		sep |= ifsset() ? (unsigned char)(c & ifsval()[0]) : ' ';
 param:
 		sepc = sep;
-		*quotedp = !sepc;
 		if (!(ap = shellparam.p))
 			return -1;
 		while ((p = *ap++)) {
@@ -1041,7 +1045,10 @@ ifsbreakup(char *string, int maxargs, struct arglist *arglist)
 		realifs = ifsset() ? ifsval() : defifs;
 		ifsp = &ifsfirst;
 		do {
+			int afternul;
+
 			p = string + ifsp->begoff;
+			afternul = nulonly;
 			nulonly = ifsp->nulonly;
 			ifs = nulonly ? nullstr : realifs;
 			ifsspc = 0;
@@ -1106,7 +1113,7 @@ ifsbreakup(char *string, int maxargs, struct arglist *arglist)
 				}
 
 				if (isifs) {
-					if (!nulonly)
+					if (!(afternul || nulonly))
 						ifsspc = isdefifs;
 					/* Ignore IFS whitespace at start */
 					if (q == start && ifsspc) {
@@ -1197,7 +1204,8 @@ expandmeta(str, flag)
 			ckfree(p);
 		switch (i) {
 		case 0:
-			if (!(pglob.gl_flags & GLOB_MAGCHAR))
+			if ((pglob.gl_flags & (GLOB_NOMAGIC | GLOB_NOCHECK)) ==
+			    (GLOB_NOMAGIC | GLOB_NOCHECK))
 				goto nometa2;
 			addglob(&pglob);
 			globfree(&pglob);
@@ -1238,6 +1246,7 @@ addglob(pglob)
 
 #else	/* HAVE_GLOB */
 STATIC char *expdir;
+STATIC unsigned expdir_max;
 
 
 STATIC void
@@ -1252,6 +1261,7 @@ expandmeta(struct strlist *str, int flag)
 		struct strlist **savelastp;
 		struct strlist *sp;
 		char *p;
+		unsigned len;
 
 		if (fflag)
 			goto nometa;
@@ -1261,12 +1271,11 @@ expandmeta(struct strlist *str, int flag)
 
 		INTOFF;
 		p = preglob(str->text, RMESCAPE_ALLOC | RMESCAPE_HEAP);
-		{
-			int i = strlen(str->text);
-			expdir = ckmalloc(i < 2048 ? 2048 : i); /* XXX */
-		}
+		len = strlen(p);
+		expdir_max = len + PATH_MAX;
+		expdir = ckmalloc(expdir_max);
 
-		expmeta(expdir, p);
+		expmeta(p, len, 0);
 		ckfree(expdir);
 		if (p != str->text)
 			ckfree(p);
@@ -1296,8 +1305,9 @@ nometa:
  */
 
 STATIC void
-expmeta(char *enddir, char *name)
+expmeta(char *name, unsigned name_len, unsigned expdir_len)
 {
+	char *enddir = expdir + expdir_len;
 	char *p;
 	const char *cp;
 	char *start;
@@ -1330,7 +1340,7 @@ expmeta(char *enddir, char *name)
 				}
 			}
 		} else {
-			if (*p == '\\')
+			if (*p == '\\' && p[1])
 				esc++;
 			if (p[esc] == '/') {
 				if (metaflag)
@@ -1340,15 +1350,15 @@ expmeta(char *enddir, char *name)
 		}
 	}
 	if (metaflag == 0) {	/* we've reached the end of the file name */
-		if (enddir != expdir)
-			metaflag++;
+		if (!expdir_len)
+			return;
 		p = name;
 		do {
-			if (*p == '\\')
+			if (*p == '\\' && p[1])
 				p++;
 			*enddir++ = *p;
 		} while (*p++);
-		if (metaflag == 0 || lstat64(expdir, &statb) >= 0)
+		if (lstat64(expdir, &statb) >= 0)
 			addfname(expdir);
 		return;
 	}
@@ -1356,23 +1366,18 @@ expmeta(char *enddir, char *name)
 	if (name < start) {
 		p = name;
 		do {
-			if (*p == '\\')
+			if (*p == '\\' && p[1])
 				p++;
 			*enddir++ = *p++;
 		} while (p < start);
 	}
-	if (enddir == expdir) {
+	*enddir = 0;
+	cp = expdir;
+	expdir_len = enddir - cp;
+	if (!expdir_len)
 		cp = ".";
-	} else if (enddir == expdir + 1 && *expdir == '/') {
-		cp = "/";
-	} else {
-		cp = expdir;
-		enddir[-1] = '\0';
-	}
 	if ((dirp = opendir(cp)) == NULL)
 		return;
-	if (enddir != expdir)
-		enddir[-1] = '/';
 	if (*endname == 0) {
 		atend = 1;
 	} else {
@@ -1380,6 +1385,7 @@ expmeta(char *enddir, char *name)
 		*endname = '\0';
 		endname += esc + 1;
 	}
+	name_len -= endname - name;
 	matchdot = 0;
 	p = start;
 	if (*p == '\\')
@@ -1394,11 +1400,22 @@ expmeta(char *enddir, char *name)
 				scopy(dp->d_name, enddir);
 				addfname(expdir);
 			} else {
-				for (p = enddir, cp = dp->d_name;
-				     (*p++ = *cp++) != '\0';)
-					continue;
-				p[-1] = '/';
-				expmeta(p, endname);
+				unsigned offset;
+				unsigned len;
+
+				p = stpcpy(enddir, dp->d_name);
+				*p = '/';
+
+				offset = p - expdir + 1;
+				len = offset + name_len + NAME_MAX;
+				if (len > expdir_max) {
+					len += PATH_MAX;
+					expdir = ckrealloc(expdir, len);
+					expdir_max = len;
+				}
+
+				expmeta(endname, name_len, offset);
+				enddir = expdir + expdir_len;
 			}
 		}
 	}
@@ -1644,7 +1661,6 @@ char *
 _rmescapes(char *str, int flag)
 {
 	char *p, *q, *r;
-	unsigned inquotes;
 	int notescaped;
 	int globbing;
 
@@ -1674,24 +1690,23 @@ _rmescapes(char *str, int flag)
 			q = mempcpy(q, str, len);
 		}
 	}
-	inquotes = 0;
 	globbing = flag & RMESCAPE_GLOB;
 	notescaped = globbing;
 	while (*p) {
 		if (*p == (char)CTLQUOTEMARK) {
-			inquotes = ~inquotes;
 			p++;
 			notescaped = globbing;
 			continue;
 		}
+		if (*p == '\\') {
+			/* naked back slash */
+			notescaped = 0;
+			goto copy;
+		}
 		if (*p == (char)CTLESC) {
 			p++;
 			if (notescaped)
 				*q++ = '\\';
-		} else if (*p == '\\' && !inquotes) {
-			/* naked back slash */
-			notescaped = 0;
-			goto copy;
 		}
 		notescaped = globbing;
 copy:
diff --git a/src/expand.h b/src/expand.h
index 26dc5b4..90f5328 100644
--- a/src/expand.h
+++ b/src/expand.h
@@ -55,7 +55,6 @@ struct arglist {
 #define	EXP_VARTILDE	0x4	/* expand tildes in an assignment */
 #define	EXP_REDIR	0x8	/* file glob for a redirection (1 match only) */
 #define EXP_CASE	0x10	/* keeps quotes around for CASE pattern */
-#define EXP_QPAT	0x20	/* pattern in quoted parameter expansion */
 #define EXP_VARTILDE2	0x40	/* expand tildes after colons only */
 #define EXP_WORD	0x80	/* expand word in parameter expansion */
 #define EXP_QUOTED	0x100	/* expand word in double quotes */
diff --git a/src/histedit.c b/src/histedit.c
index 94465d7..f5c90ab 100644
--- a/src/histedit.c
+++ b/src/histedit.c
@@ -39,6 +39,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <getopt.h>
 /*
  * Editline and history functions (and glue).
  */
diff --git a/src/input.c b/src/input.c
index 06c08d4..ae0c4c8 100644
--- a/src/input.c
+++ b/src/input.c
@@ -147,8 +147,12 @@ retry:
 		static const char *rl_cp;
 		static int el_len;
 
-		if (rl_cp == NULL)
+		if (rl_cp == NULL) {
+			struct stackmark smark;
+			pushstackmark(&smark, stackblocksize());
 			rl_cp = el_gets(el, &el_len);
+			popstackmark(&smark);
+		}
 		if (rl_cp == NULL)
 			nr = 0;
 		else {
@@ -475,6 +479,13 @@ popfile(void)
 }
 
 
+void unwindfiles(struct parsefile *stop)
+{
+	while (parsefile != stop)
+		popfile();
+}
+
+
 /*
  * Return to top level.
  */
@@ -482,8 +493,7 @@ popfile(void)
 void
 popallfiles(void)
 {
-	while (parsefile != &basepf)
-		popfile();
+	unwindfiles(&basepf);
 }
 
 
diff --git a/src/input.h b/src/input.h
index ec97c1d..a9c0517 100644
--- a/src/input.h
+++ b/src/input.h
@@ -97,5 +97,6 @@ void popstring(void);
 int setinputfile(const char *, int);
 void setinputstring(char *);
 void popfile(void);
+void unwindfiles(struct parsefile *);
 void popallfiles(void);
 void closescript(void);
diff --git a/src/jobs.c b/src/jobs.c
index 4f02e38..1a97c54 100644
--- a/src/jobs.c
+++ b/src/jobs.c
@@ -53,6 +53,7 @@
 #include <termios.h>
 #undef CEOF			/* syntax.h redefines this */
 #endif
+#include "eval.h"
 #include "redir.h"
 #include "show.h"
 #include "main.h"
@@ -648,7 +649,7 @@ out:
 	return retval;
 
 sigout:
-	retval = 128 + pendingsigs;
+	retval = 128 + pending_sig;
 	goto out;
 }
 
@@ -973,10 +974,11 @@ waitforjob(struct job *jp)
 {
 	int st;
 
-	TRACE(("waitforjob(%%%d) called\n", jobno(jp)));
-	while (jp->state == JOBRUNNING) {
+	TRACE(("waitforjob(%%%d) called\n", jp ? jobno(jp) : 0));
+	while ((jp && jp->state == JOBRUNNING) || gotsigchld)
 		dowait(DOWAIT_BLOCK, jp);
-	}
+	if (!jp)
+		return exitstatus;
 	st = getstatus(jp);
 #if JOBS
 	if (jp->jobctl) {
@@ -1147,7 +1149,7 @@ waitproc(int block, int *status)
 		sigfillset(&mask);
 		sigprocmask(SIG_SETMASK, &mask, &oldmask);
 
-		while (!gotsigchld && !pendingsigs)
+		while (!gotsigchld && !pending_sig)
 			sigsuspend(&oldmask);
 
 		sigclearmask();
diff --git a/src/miscbltin.c b/src/miscbltin.c
index 39b9c47..5ccbbcb 100644
--- a/src/miscbltin.c
+++ b/src/miscbltin.c
@@ -152,7 +152,7 @@ readcmd(int argc, char **argv)
 		case 1:
 			break;
 		default:
-			if (errno == EINTR && !pendingsigs)
+			if (errno == EINTR && !pending_sig)
 				continue;
 				/* fall through */
 		case 0:
diff --git a/src/mystring.c b/src/mystring.c
index 0106bd2..de624b8 100644
--- a/src/mystring.c
+++ b/src/mystring.c
@@ -125,7 +125,7 @@ intmax_t atomax(const char *s, int base)
 	errno = 0;
 	r = strtoimax(s, &p, base);
 
-	if (errno != 0)
+	if (errno == ERANGE)
 		badnum(s);
 
 	/*
diff --git a/src/parser.c b/src/parser.c
index 382658e..8e40781 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -80,6 +80,18 @@ struct heredoc {
 	int striptabs;		/* if set, strip leading tabs */
 };
 
+struct synstack {
+	const char *syntax;
+	struct synstack *prev;
+	struct synstack *next;
+	int innerdq;
+	int varpushed;
+	int dblquote;
+	int varnest;		/* levels of variables expansion */
+	int parenlevel;		/* levels of parens in arithmetic */
+	int dqvarnest;		/* levels of variables expansion within double quotes */
+};
+
 
 
 struct heredoc *heredoclist;	/* list of here documents to read */
@@ -106,6 +118,7 @@ STATIC void parseheredoc(void);
 STATIC int peektoken(void);
 STATIC int readtoken(void);
 STATIC int xxreadtoken(void);
+STATIC int pgetc_eatbnl();
 STATIC int readtoken1(int, char const *, char *, int);
 STATIC void synexpect(int) __attribute__((__noreturn__));
 STATIC void synerror(const char *) __attribute__((__noreturn__));
@@ -656,8 +669,10 @@ parseheredoc(void)
 		if (needprompt) {
 			setprompt(2);
 		}
-		readtoken1(pgetc(), here->here->type == NHERE? SQSYNTAX : DQSYNTAX,
-				here->eofmark, here->striptabs);
+		if (here->here->type == NHERE)
+			readtoken1(pgetc(), SQSYNTAX, here->eofmark, here->striptabs);
+		else
+			readtoken1(pgetc_eatbnl(), DQSYNTAX, here->eofmark, here->striptabs);
 		n = (union node *)stalloc(sizeof (struct narg));
 		n->narg.type = NARG;
 		n->narg.next = NULL;
@@ -782,7 +797,7 @@ xxreadtoken(void)
 		setprompt(2);
 	}
 	for (;;) {	/* until token or start of word found */
-		c = pgetc();
+		c = pgetc_eatbnl();
 		switch (c) {
 		case ' ': case '\t':
 		case PEOA:
@@ -791,30 +806,23 @@ xxreadtoken(void)
 			while ((c = pgetc()) != '\n' && c != PEOF);
 			pungetc();
 			continue;
-		case '\\':
-			if (pgetc() == '\n') {
-				nlprompt();
-				continue;
-			}
-			pungetc();
-			goto breakloop;
 		case '\n':
 			nlnoprompt();
 			RETURN(TNL);
 		case PEOF:
 			RETURN(TEOF);
 		case '&':
-			if (pgetc() == '&')
+			if (pgetc_eatbnl() == '&')
 				RETURN(TAND);
 			pungetc();
 			RETURN(TBACKGND);
 		case '|':
-			if (pgetc() == '|')
+			if (pgetc_eatbnl() == '|')
 				RETURN(TOR);
 			pungetc();
 			RETURN(TPIPE);
 		case ';':
-			if (pgetc() == ';')
+			if (pgetc_eatbnl() == ';')
 				RETURN(TENDCASE);
 			pungetc();
 			RETURN(TSEMI);
@@ -822,11 +830,9 @@ xxreadtoken(void)
 			RETURN(TLP);
 		case ')':
 			RETURN(TRP);
-		default:
-			goto breakloop;
 		}
+		break;
 	}
-breakloop:
 	return readtoken1(c, BASESYNTAX, (char *)NULL, 0);
 #undef RETURN
 }
@@ -836,7 +842,7 @@ static int pgetc_eatbnl(void)
 	int c;
 
 	while ((c = pgetc()) == '\\') {
-		if (pgetc() != '\n') {
+		if (pgetc2() != '\n') {
 			pungetc();
 			break;
 		}
@@ -847,6 +853,21 @@ static int pgetc_eatbnl(void)
 	return c;
 }
 
+static void synstack_push(struct synstack **stack, struct synstack *next,
+			  const char *syntax)
+{
+	memset(next, 0, sizeof(*next));
+	next->syntax = syntax;
+	next->next = *stack;
+	(*stack)->prev = next;
+	*stack = next;
+}
+
+static void synstack_pop(struct synstack **stack)
+{
+	*stack = (*stack)->next;
+}
+
 
 
 /*
@@ -876,24 +897,15 @@ readtoken1(int firstc, char const *syntax, char *eofmark, int striptabs)
 	size_t len;
 	struct nodelist *bqlist;
 	int quotef;
-	int dblquote;
-	int varnest;	/* levels of variables expansion */
-	int arinest;	/* levels of arithmetic expansion */
-	int parenlevel;	/* levels of parens in arithmetic */
-	int dqvarnest;	/* levels of variables expansion within double quotes */
 	int oldstyle;
-	/* syntax before arithmetic */
-	char const *uninitialized_var(prevsyntax);
+	/* syntax stack */
+	struct synstack synbase = { .syntax = syntax };
+	struct synstack *synstack = &synbase;
 
-	dblquote = 0;
 	if (syntax == DQSYNTAX)
-		dblquote = 1;
+		synstack->dblquote = 1;
 	quotef = 0;
 	bqlist = NULL;
-	varnest = 0;
-	arinest = 0;
-	parenlevel = 0;
-	dqvarnest = 0;
 
 	STARTSTACKSTR(out);
 	loop: {	/* for each line, until end of word */
@@ -901,28 +913,30 @@ readtoken1(int firstc, char const *syntax, char *eofmark, int striptabs)
 		if (c == '\034' && doprompt
 		 && attyset() && ! equal(termval(), "emacs")) {
 			attyline();
-			if (syntax == BASESYNTAX)
+			if (synstack->syntax == BASESYNTAX)
 				return readtoken();
-			c = pgetc();
+			c = syntax == SQSYNTAX ? pgetc() : pgetc_eatbnl();
 			goto loop;
 		}
 #endif
 		CHECKEND();	/* set c to PEOF if at end of here document */
 		for (;;) {	/* until end of line or end of word */
 			CHECKSTRSPACE(4, out);	/* permit 4 calls to USTPUTC */
-			switch(syntax[c]) {
+			switch(synstack->syntax[c]) {
 			case CNL:	/* '\n' */
-				if (syntax == BASESYNTAX)
+				if (synstack->syntax == BASESYNTAX &&
+				    !synstack->varnest)
 					goto endword;	/* exit outer loop */
 				USTPUTC(c, out);
 				nlprompt();
-				c = pgetc();
+				c = syntax == SQSYNTAX ? pgetc() : pgetc_eatbnl();
 				goto loop;		/* continue outer loop */
 			case CWORD:
 				USTPUTC(c, out);
 				break;
 			case CCTL:
-				if (eofmark == NULL || dblquote)
+				if ((!eofmark) | synstack->dblquote |
+				    synstack->varnest)
 					USTPUTC(CTLESC, out);
 				USTPUTC(c, out);
 				break;
@@ -933,17 +947,20 @@ readtoken1(int firstc, char const *syntax, char *eofmark, int striptabs)
 					USTPUTC(CTLESC, out);
 					USTPUTC('\\', out);
 					pungetc();
-				} else if (c == '\n') {
-					nlprompt();
 				} else {
 					if (
-						dblquote &&
+						synstack->dblquote &&
 						c != '\\' && c != '`' &&
 						c != '$' && (
 							c != '"' ||
-							eofmark != NULL
+							(eofmark != NULL &&
+							 !synstack->varnest)
+						) && (
+							c != '}' ||
+							!synstack->varnest
 						)
 					) {
+						USTPUTC(CTLESC, out);
 						USTPUTC('\\', out);
 					}
 					USTPUTC(CTLESC, out);
@@ -952,55 +969,64 @@ readtoken1(int firstc, char const *syntax, char *eofmark, int striptabs)
 				}
 				break;
 			case CSQUOTE:
-				syntax = SQSYNTAX;
+				synstack->syntax = SQSYNTAX;
 quotemark:
 				if (eofmark == NULL) {
 					USTPUTC(CTLQUOTEMARK, out);
 				}
 				break;
 			case CDQUOTE:
-				syntax = DQSYNTAX;
-				dblquote = 1;
+				synstack->syntax = DQSYNTAX;
+				synstack->dblquote = 1;
+toggledq:
+				if (synstack->varnest)
+					synstack->innerdq ^= 1;
 				goto quotemark;
 			case CENDQUOTE:
-				if (eofmark && !varnest)
+				if (eofmark && !synstack->varnest) {
 					USTPUTC(c, out);
-				else {
-					if (dqvarnest == 0) {
-						syntax = BASESYNTAX;
-						dblquote = 0;
-					}
-					quotef++;
-					goto quotemark;
+					break;
 				}
-				break;
+
+				if (synstack->dqvarnest == 0) {
+					synstack->syntax = BASESYNTAX;
+					synstack->dblquote = 0;
+				}
+
+				quotef++;
+
+				if (c == '"')
+					goto toggledq;
+
+				goto quotemark;
 			case CVAR:	/* '$' */
 				PARSESUB();		/* parse substitution */
 				break;
 			case CENDVAR:	/* '}' */
-				if (varnest > 0) {
-					varnest--;
-					if (dqvarnest > 0) {
-						dqvarnest--;
-					}
+				if (!synstack->innerdq &&
+				    synstack->varnest > 0) {
+					if (!--synstack->varnest &&
+					    synstack->varpushed)
+						synstack_pop(&synstack);
+					else if (synstack->dqvarnest > 0)
+						synstack->dqvarnest--;
 					USTPUTC(CTLENDVAR, out);
 				} else {
 					USTPUTC(c, out);
 				}
 				break;
 			case CLP:	/* '(' in arithmetic */
-				parenlevel++;
+				synstack->parenlevel++;
 				USTPUTC(c, out);
 				break;
 			case CRP:	/* ')' in arithmetic */
-				if (parenlevel > 0) {
+				if (synstack->parenlevel > 0) {
 					USTPUTC(c, out);
-					--parenlevel;
+					--synstack->parenlevel;
 				} else {
-					if (pgetc() == ')') {
+					if (pgetc_eatbnl() == ')') {
 						USTPUTC(CTLENDARI, out);
-						if (!--arinest)
-							syntax = prevsyntax;
+						synstack_pop(&synstack);
 					} else {
 						/*
 						 * unbalanced parens
@@ -1012,6 +1038,11 @@ quotemark:
 				}
 				break;
 			case CBQUOTE:	/* '`' */
+				if (checkkwd & CHKEOFMARK) {
+					USTPUTC('`', out);
+					break;
+				}
+
 				PARSEBACKQOLD();
 				break;
 			case CEOF:
@@ -1019,21 +1050,21 @@ quotemark:
 			case CIGN:
 				break;
 			default:
-				if (varnest == 0)
+				if (synstack->varnest == 0)
 					goto endword;	/* exit outer loop */
 				if (c != PEOA) {
 					USTPUTC(c, out);
 				}
 			}
-			c = pgetc();
+			c = syntax == SQSYNTAX ? pgetc() : pgetc_eatbnl();
 		}
 	}
 endword:
-	if (syntax == ARISYNTAX)
+	if (synstack->syntax == ARISYNTAX)
 		synerror("Missing '))'");
-	if (syntax != BASESYNTAX && eofmark == NULL)
+	if (synstack->syntax != BASESYNTAX && eofmark == NULL)
 		synerror("Unterminated quoted string");
-	if (varnest != 0) {
+	if (synstack->varnest != 0) {
 		/* { */
 		synerror("Missing '}'");
 	}
@@ -1132,7 +1163,7 @@ parseredir: {
 	np = (union node *)stalloc(sizeof (struct nfile));
 	if (c == '>') {
 		np->nfile.fd = 1;
-		c = pgetc();
+		c = pgetc_eatbnl();
 		if (c == '>')
 			np->type = NAPPEND;
 		else if (c == '|')
@@ -1145,7 +1176,7 @@ parseredir: {
 		}
 	} else {	/* c == '<' */
 		np->nfile.fd = 0;
-		switch (c = pgetc()) {
+		switch (c = pgetc_eatbnl()) {
 		case '<':
 			if (sizeof (struct nfile) != sizeof (struct nhere)) {
 				np = (union node *)stalloc(sizeof (struct nhere));
@@ -1154,7 +1185,7 @@ parseredir: {
 			np->type = NHERE;
 			heredoc = (struct heredoc *)stalloc(sizeof (struct heredoc));
 			heredoc->here = np;
-			if ((c = pgetc()) == '-') {
+			if ((c = pgetc_eatbnl()) == '-') {
 				heredoc->striptabs = 1;
 			} else {
 				heredoc->striptabs = 0;
@@ -1210,6 +1241,8 @@ parsesub: {
 			PARSEBACKQNEW();
 		}
 	} else {
+		const char *newsyn = synstack->syntax;
+
 		USTPUTC(CTLVAR, out);
 		typeloc = out - (char *)stackblock();
 		STADJUST(1, out);
@@ -1229,7 +1262,7 @@ varname:
 				STPUTC(c, out);
 				c = pgetc_eatbnl();
 			} while (is_digit(c));
-		} else {
+		} else if (c != '}') {
 			int cc = c;
 
 			c = pgetc_eatbnl();
@@ -1257,9 +1290,12 @@ varname:
 			}
 
 			USTPUTC(cc, out);
-		}
+		} else
+			goto badsub;
 
 		if (subtype == 0) {
+			int cc = c;
+
 			switch (c) {
 			case ':':
 				subtype = VSNUL;
@@ -1273,27 +1309,41 @@ varname:
 				break;
 			case '%':
 			case '#':
-				{
-					int cc = c;
-					subtype = c == '#' ? VSTRIMLEFT :
-							     VSTRIMRIGHT;
-					c = pgetc_eatbnl();
-					if (c == cc)
-						subtype++;
-					else
-						pungetc();
-					break;
-				}
+				subtype = c == '#' ? VSTRIMLEFT :
+						     VSTRIMRIGHT;
+				c = pgetc_eatbnl();
+				if (c == cc)
+					subtype++;
+				else
+					pungetc();
+
+				newsyn = BASESYNTAX;
+				break;
 			}
 		} else {
 badsub:
 			pungetc();
 		}
+
+		if (newsyn == ARISYNTAX)
+			newsyn = DQSYNTAX;
+
+		if ((newsyn != synstack->syntax || synstack->innerdq) &&
+		    subtype != VSNORMAL) {
+			synstack_push(&synstack,
+				      synstack->prev ?:
+				      alloca(sizeof(*synstack)),
+				      newsyn);
+
+			synstack->varpushed++;
+			synstack->dblquote = newsyn != BASESYNTAX;
+		}
+
 		*((char *)stackblock() + typeloc) = subtype;
 		if (subtype != VSNORMAL) {
-			varnest++;
-			if (dblquote)
-				dqvarnest++;
+			synstack->varnest++;
+			if (synstack->dblquote)
+				synstack->dqvarnest++;
 		}
 		STPUTC('=', out);
 	}
@@ -1336,23 +1386,14 @@ parsebackq: {
 			if (needprompt) {
 				setprompt(2);
 			}
-			switch (pc = pgetc()) {
+			switch (pc = pgetc_eatbnl()) {
 			case '`':
 				goto done;
 
 			case '\\':
-                                if ((pc = pgetc()) == '\n') {
-					nlprompt();
-					/*
-					 * If eating a newline, avoid putting
-					 * the newline into the new character
-					 * stream (via the STPUTC after the
-					 * switch).
-					 */
-					continue;
-				}
+                                pc = pgetc_eatbnl();
                                 if (pc != '\\' && pc != '`' && pc != '$'
-                                    && (!dblquote || pc != '"'))
+                                    && (!synstack->dblquote || pc != '"'))
                                         STPUTC('\\', pout);
 				if (pc > PEOA) {
 					break;
@@ -1428,10 +1469,10 @@ done:
  */
 parsearith: {
 
-	if (++arinest == 1) {
-		prevsyntax = syntax;
-		syntax = ARISYNTAX;
-	}
+	synstack_push(&synstack,
+		      synstack->prev ?: alloca(sizeof(*synstack)),
+		      ARISYNTAX);
+	synstack->dblquote = 1;
 	USTPUTC(CTLARI, out);
 	goto parsearith_return;
 }
@@ -1529,7 +1570,7 @@ expandstr(const char *ps)
 	saveprompt = doprompt;
 	doprompt = 0;
 
-	readtoken1(pgetc(), DQSYNTAX, FAKEEOFMARK, 0);
+	readtoken1(pgetc_eatbnl(), DQSYNTAX, FAKEEOFMARK, 0);
 
 	doprompt = saveprompt;
 
diff --git a/src/redir.c b/src/redir.c
index f96a76b..71b0f77 100644
--- a/src/redir.c
+++ b/src/redir.c
@@ -192,7 +192,7 @@ openredirect(union node *redir)
 			} else if (!S_ISREG(sb.st_mode)) {
 				if ((f = open64(fname, O_WRONLY, 0666)) < 0)
 					goto ecreate;
-				if (fstat64(f, &sb) < 0 && S_ISREG(sb.st_mode)) {
+				if (!fstat64(f, &sb) && S_ISREG(sb.st_mode)) {
 					close(f);
 					errno = EEXIST;
 					goto ecreate;
diff --git a/src/trap.c b/src/trap.c
index edb9938..69eb8ab 100644
--- a/src/trap.c
+++ b/src/trap.c
@@ -73,7 +73,7 @@ char sigmode[NSIG - 1];
 /* indicates specified signal received */
 static char gotsig[NSIG - 1];
 /* last pending signal */
-volatile sig_atomic_t pendingsigs;
+volatile sig_atomic_t pending_sig;
 /* received SIGCHLD */
 int gotsigchld;
 
@@ -291,7 +291,7 @@ onsig(int signo)
 	}
 
 	gotsig[signo - 1] = 1;
-	pendingsigs = signo;
+	pending_sig = signo;
 
 	if (signo == SIGINT && !trap[SIGINT]) {
 		if (!suppressint)
@@ -314,7 +314,7 @@ void dotrap(void)
 	int i;
 	int status, last_status;
 
-	if (!pendingsigs)
+	if (!pending_sig)
 		return;
 
 	status = savestatus;
@@ -323,7 +323,7 @@ void dotrap(void)
 		status = exitstatus;
 		savestatus = status;
 	}
-	pendingsigs = 0;
+	pending_sig = 0;
 	barrier();
 
 	for (i = 0, q = gotsig; i < NSIG - 1; i++, q++) {
@@ -331,7 +331,7 @@ void dotrap(void)
 			continue;
 
 		if (evalskip) {
-			pendingsigs = i + 1;
+			pending_sig = i + 1;
 			break;
 		}
 
diff --git a/src/trap.h b/src/trap.h
index 7573fd7..b9dfcf2 100644
--- a/src/trap.h
+++ b/src/trap.h
@@ -38,7 +38,7 @@
 
 extern int trapcnt;
 extern char sigmode[];
-extern volatile sig_atomic_t pendingsigs;
+extern volatile sig_atomic_t pending_sig;
 extern int gotsigchld;
 
 int trapcmd(int, char **);