tests: Add lang-c++26 test.

* gettext-tools/tests/lang-c++26: New file, based on
gettext-tools/tests/lang-c++20.
* gettext-tools/tests/Makefile.am (TESTS): Add it.

diff --git a/gettext-tools/tests/Makefile.am b/gettext-tools/tests/Makefile.am
index 602a18081261869e9a0c39d3263ca3d907e2419e..93dcc311b65d346cf01e981e3ac48633a666f168 100644 (file)
--- a/gettext-tools/tests/Makefile.am
+++ b/gettext-tools/tests/Makefile.am
@@ -212,7 +212,7 @@ TESTS = gettext-1 gettext-2 \
        plural-1 plural-2 plural-3 plural-4 \
        gettextpo-1 sentence-1 \
        lang-po \
-       lang-c lang-c++ lang-c++20 lang-objc \
+       lang-c lang-c++ lang-c++20 lang-c++26 lang-objc \
        lang-python-1 lang-python-2 \
        lang-java \
        lang-csharp \

diff --git a/gettext-tools/tests/lang-c++26 b/gettext-tools/tests/lang-c++26
new file mode 100755 (executable)
index 0000000..9fa7df3
--- /dev/null
+++ b/gettext-tools/tests/lang-c++26
@@ -0,0 +1,192 @@
+#! /bin/sh
+. "${srcdir=.}/init.sh"; path_prepend_ . ../src
+
+# Test of gettext facilities in the C++ language, according to ISO C++ 26.
+# Assumes an fr_FR locale is installed.
+# Assumes the following packages are installed: gcc g++.
+
+# This test fails if the gettext package was configured with --disable-nls,
+# because in this case the gettext-runtime/intl/ directory does not produce
+# a <libintl.h> header file.
+
+# Test whether a C++ compiler is found.
+test "${CXX}" != "no" || {
+  echo "Skipping test: no C++ compiler found"
+  Exit 77
+}
+
+# Try to find compiler option for ISO C++ 26 support.
+cat <<\EOF > test.cc
+#include <format>
+using std::format;
+using std::runtime_format;
+EOF
+if ${CXX} ${CXXFLAGS} ${CPPFLAGS} -c test.cc 2>/dev/null; then
+  CXX26=
+elif ${CXX} ${CXXFLAGS} -std=gnu++26 ${CPPFLAGS} -c test.cc 2>/dev/null; then
+  CXX26='-std=gnu++26'
+else
+  echo "Skipping test: C++ compiler does not support ISO C++ 26"
+  Exit 77
+fi
+CXXFLAGS="${CXXFLAGS} ${CXX26}"
+
+cat <<\EOF > prog.cc
+#include "config.h"
+
+#include <format>
+#include <iostream>
+using namespace std;
+
+#include <libintl.h>
+#include <locale.h>
+#include <stdlib.h>
+#include "xsetenv.h"
+#define _(string) gettext (string)
+
+int main (int argc, char *argv[])
+{
+  int n = atoi (argv[2]);
+
+  xsetenv ("LC_ALL", argv[1], 1);
+  if (setlocale (LC_ALL, "") == NULL)
+    // Couldn't set locale.
+    exit (77);
+
+  textdomain ("prog");
+  bindtextdomain ("prog", ".");
+
+  cout << _("'Your command, please?', asked the waiter.") << endl;
+
+  cout << format (runtime_format (ngettext ("a piece of cake", "{} pieces of cake", n)),
+                  n)
+       << endl;
+
+  cout << format (runtime_format (_("{} is replaced by {}.")), "FF", "EUR")
+       << endl;
+}
+EOF
+
+# Compile in two steps from .cc to .o and from .o to 'prog'. This way,
+# relinking is faster because doesn't need to redo the first step.
+# Put the -I flags before ${CXXFLAGS} ${CPPFLAGS}, to make sure that libintl.h
+# is found in the build directory, regardless of -I options present in
+# ${CXXFLAGS} or ${CPPFLAGS}.
+${CXX} -I../.. -I"$abs_top_srcdir"/gnulib-lib -I../../../gettext-runtime/intl ${CXXFLAGS} ${CPPFLAGS} -c prog.cc \
+  || Exit 1
+# Remove the -Wl,--disable-auto-import option here that is added by
+# woe32-dll.m4. Cygwin 1.7.2 does not support it in C++ mode: It gives
+# a link error about 'std::cout'.
+: ${CONFIG_SHELL=${SHELL-/bin/sh}}
+${CONFIG_SHELL} "$top_builddir"/libtool --quiet --tag=CXX --mode=link \
+  ${CXX} ${CXXFLAGS} `echo "X ${LDFLAGS} " | sed -e 's/^X//' -e 's/ -Wl,--disable-auto-import / /'` -o prog prog.${OBJEXT} \
+         ../../gnulib-lib/libgettextlib.la ${LTLIBINTL} \
+  || Exit 1
+
+: ${XGETTEXT=xgettext}
+${XGETTEXT} -o prog.tmp --omit-header --no-location -k_ prog.cc || Exit 1
+LC_ALL=C tr -d '\r' < prog.tmp > prog.pot || Exit 1
+
+cat <<\EOF > prog.ok
+msgid "'Your command, please?', asked the waiter."
+msgstr ""
+
+#, c++-format
+msgid "a piece of cake"
+msgid_plural "{} pieces of cake"
+msgstr[0] ""
+msgstr[1] ""
+
+#, c++-format
+msgid "{} is replaced by {}."
+msgstr ""
+EOF
+
+: ${DIFF=diff}
+${DIFF} prog.ok prog.pot || Exit 1
+
+cat <<\EOF > fr.po
+msgid ""
+msgstr ""
+"Content-Type: text/plain; charset=ISO-8859-1\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+
+msgid "'Your command, please?', asked the waiter."
+msgstr "«Votre commande, s'il vous plait», dit le garçon."
+
+# Les gateaux allemands sont les meilleurs du monde.
+#, c++-format
+msgid "a piece of cake"
+msgid_plural "{} pieces of cake"
+msgstr[0] "un morceau de gateau"
+msgstr[1] "{} morceaux de gateau"
+
+# Reverse the arguments.
+#, c++-format
+msgid "{} is replaced by {}."
+msgstr "{1} remplace {0}."
+EOF
+
+: ${MSGMERGE=msgmerge}
+${MSGMERGE} -q -o fr.po.tmp fr.po prog.pot || Exit 1
+LC_ALL=C tr -d '\r' < fr.po.tmp > fr.po.new || Exit 1
+
+: ${DIFF=diff}
+${DIFF} fr.po fr.po.new || Exit 1
+
+test -d fr || mkdir fr
+test -d fr/LC_MESSAGES || mkdir fr/LC_MESSAGES
+
+: ${MSGFMT=msgfmt}
+${MSGFMT} -o fr/LC_MESSAGES/prog.mo fr.po
+
+: ${DIFF=diff}
+cat <<\EOF > prog.ok
+«Votre commande, s'il vous plait», dit le garçon.
+2 morceaux de gateau
+EUR remplace FF.
+EOF
+cat <<\EOF > prog.oku
+«Votre commande, s'il vous plait», dit le garçon.
+2 morceaux de gateau
+EUR remplace FF.
+EOF
+
+: ${LOCALE_FR=fr_FR}
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR != none; then
+  prepare_locale_ fr $LOCALE_FR
+  LANGUAGE= ./prog $LOCALE_FR 2 > prog.tmp
+  case $? in
+    0) case "$host_os" in
+         mingw*) LC_ALL=C tr -d '\r' < prog.tmp > prog.out || Exit 1 ;;
+         *) cp prog.tmp prog.out || Exit 1 ;;
+       esac
+       ${DIFF} prog.ok prog.out || Exit 1;;
+    77) LOCALE_FR=none;;
+    *) Exit 1;;
+  esac
+fi
+if test $LOCALE_FR_UTF8 != none; then
+  prepare_locale_ fr $LOCALE_FR_UTF8
+  LANGUAGE= ./prog $LOCALE_FR_UTF8 2 > prog.tmp
+  case $? in
+    0) case "$host_os" in
+         mingw*) LC_ALL=C tr -d '\r' < prog.tmp > prog.out || Exit 1 ;;
+         *) cp prog.tmp prog.out || Exit 1 ;;
+       esac
+       ${DIFF} prog.oku prog.out || Exit 1;;
+    77) LOCALE_FR_UTF8=none;;
+    *) Exit 1;;
+  esac
+fi
+if test $LOCALE_FR = none && test $LOCALE_FR_UTF8 = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no french locale is installed"
+  else
+    echo "Skipping test: no french locale is supported"
+  fi
+  Exit 77
+fi
+
+Exit 0