Adding upstream version 0.19.2.upstream/0.19.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

11 files changed, 1870 insertions, 0 deletions

diff --git a/src/include/Makefile.am b/src/include/Makefile.am
new file mode 100644
index 0000000..e4006c8
--- /dev/null
+++ b/src/include/Makefile.am
@@ -0,0 +1,9 @@
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+	mock_spreadsheet.hpp \
+	numeric_parser.hpp \
+	ostream_utils.hpp \
+	test_global.hpp
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new file mode 100644
index 0000000..9c77c71
--- /dev/null
+++ b/src/include/Makefile.in
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+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-recursive
+all-am: Makefile
+installdirs: installdirs-recursive
+installdirs-am:
+install: install-recursive
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+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+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)
+
+maintainer-clean-generic:
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+	@echo "it deletes files that may require special tools to rebuild."
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+check-valgrind-sgcheck: check-valgrind-sgcheck-recursive
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+check-valgrind-sgcheck-am: check-valgrind-sgcheck-local
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+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
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+distclean: distclean-recursive
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/include/cpu_features.hpp b/src/include/cpu_features.hpp
new file mode 100644
index 0000000..4bdee9c
--- /dev/null
+++ b/src/include/cpu_features.hpp
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_ORCUS_DETAIL_CPU_FEATURES_HPP
+#define INCLUDED_ORCUS_DETAIL_CPU_FEATURES_HPP
+
+namespace orcus { namespace detail { namespace cpu {
+
+#ifdef __ORCUS_CPU_FEATURES
+
+constexpr bool has_sse42()
+{
+#if defined(__SSE4_2__) || defined(__AVX2__)
+    return true;
+#else
+    return false;
+#endif
+}
+
+constexpr bool has_avx2()
+{
+#ifdef __AVX2__
+    return true;
+#else
+    return false;
+#endif
+}
+
+#else
+
+constexpr bool has_sse42() { return false; }
+constexpr bool has_avx2() { return false; }
+
+#endif
+
+}}}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/src/include/filesystem_env.hpp b/src/include/filesystem_env.hpp
new file mode 100644
index 0000000..fea82b5
--- /dev/null
+++ b/src/include/filesystem_env.hpp
@@ -0,0 +1,23 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#ifdef HAVE_FILESYSTEM
+#include <filesystem>
+namespace fs = std::filesystem;
+#else
+#ifdef HAVE_EXPERIMENTAL_FILESYSTEM
+#include <experimental/filesystem>
+namespace fs = std::experimental::filesystem;
+#else
+#include <boost/filesystem.hpp>
+namespace fs = boost::filesystem;
+#endif
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/src/include/mock_spreadsheet.hpp b/src/include/mock_spreadsheet.hpp
new file mode 100644
index 0000000..5f6a332
--- /dev/null
+++ b/src/include/mock_spreadsheet.hpp
@@ -0,0 +1,179 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef __ORCUS_SPREADSHEET_MOCK_IMPORT_INTERFACE_HPP__
+#define __ORCUS_SPREADSHEET_MOCK_IMPORT_INTERFACE_HPP__
+
+#include <orcus/spreadsheet/import_interface.hpp>
+#include <orcus/spreadsheet/import_interface_styles.hpp>
+
+namespace orcus { namespace spreadsheet { namespace mock {
+
+class import_shared_strings : public orcus::spreadsheet::iface::import_shared_strings
+{
+public:
+    virtual ~import_shared_strings() override;
+
+    virtual size_t append(std::string_view s) override;
+
+    virtual size_t add(std::string_view s) override;
+
+    virtual void set_segment_font(size_t font_index) override;
+    virtual void set_segment_bold(bool b) override;
+    virtual void set_segment_italic(bool b) override;
+    virtual void set_segment_font_name(std::string_view s) override;
+    virtual void set_segment_font_size(double point) override;
+    virtual void set_segment_font_color(color_elem_t alpha, color_elem_t red, color_elem_t green, color_elem_t blue) override;
+    virtual void append_segment(std::string_view s) override;
+    virtual size_t commit_segments() override;
+};
+
+class import_styles : public orcus::spreadsheet::iface::import_styles
+{
+public:
+    virtual ~import_styles() override;
+
+    // font
+
+    virtual void set_font_count(size_t n) override;
+    virtual iface::import_font_style* start_font_style() override;
+
+    // fill
+
+    virtual void set_fill_count(size_t n) override;
+    virtual iface::import_fill_style* start_fill_style() override;
+
+    // border
+
+    virtual void set_border_count(size_t n) override;
+    virtual iface::import_border_style* start_border_style() override;
+
+    virtual void set_xf_count(xf_category_t cat, size_t n) = 0;
+    virtual void set_cell_style_count(size_t n) override;
+};
+
+class import_sheet_properties : public orcus::spreadsheet::iface::import_sheet_properties
+{
+public:
+    virtual ~import_sheet_properties() override;
+
+    virtual void set_column_width(
+        orcus::spreadsheet::col_t col, orcus::spreadsheet::col_t col_span, double width, orcus::length_unit_t unit) override;
+
+    virtual void set_column_hidden(
+        orcus::spreadsheet::col_t col, orcus::spreadsheet::col_t col_span, bool hidden) override;
+
+    virtual void set_row_height(orcus::spreadsheet::row_t row, double height, orcus::length_unit_t unit) override;
+
+    virtual void set_row_hidden(orcus::spreadsheet::row_t row, bool hidden) override;
+
+    virtual void set_merge_cell_range(const range_t& range) override;
+};
+
+class import_reference_resolver : public orcus::spreadsheet::iface::import_reference_resolver
+{
+public:
+    virtual ~import_reference_resolver() override;
+
+    virtual src_address_t resolve_address(std::string_view address) override;
+
+    virtual src_range_t resolve_range(std::string_view range) override;
+};
+
+class import_array_formula : public orcus::spreadsheet::iface::import_array_formula
+{
+public:
+    virtual ~import_array_formula() override;
+
+    virtual void set_range(const range_t& range) override;
+
+    virtual void set_formula(formula_grammar_t grammar, std::string_view formula) override;
+
+    virtual void set_result_value(row_t row, col_t col, double value) override;
+
+    virtual void set_result_string(row_t row, col_t col, std::string_view value) override;
+
+    virtual void set_result_empty(row_t row, col_t col) override;
+
+    virtual void set_result_bool(row_t row, col_t col, bool value) override;
+
+    virtual void commit() override;
+};
+
+class import_formula : public orcus::spreadsheet::iface::import_formula
+{
+public:
+    virtual ~import_formula() override;
+    virtual void set_position(row_t row, col_t col) override;
+    virtual void set_formula(formula_grammar_t grammar, std::string_view formula) override;
+    virtual void set_shared_formula_index(size_t index) override;
+    virtual void set_result_value(double value) override;
+    virtual void set_result_string(std::string_view value) override;
+    virtual void set_result_bool(bool value) override;
+    virtual void set_result_empty() override;
+    virtual void commit() override;
+};
+
+/**
+ * Interface for sheet.
+ */
+class import_sheet : public orcus::spreadsheet::iface::import_sheet
+{
+public:
+    virtual ~import_sheet() override;
+
+    virtual void set_auto(orcus::spreadsheet::row_t row, orcus::spreadsheet::col_t col, std::string_view s) override;
+
+    virtual void set_string(orcus::spreadsheet::row_t row, orcus::spreadsheet::col_t col, orcus::spreadsheet::string_id_t sindex) override;
+
+    virtual void set_value(orcus::spreadsheet::row_t row, orcus::spreadsheet::col_t col, double value) override;
+
+    virtual void set_bool(orcus::spreadsheet::row_t row, orcus::spreadsheet::col_t col, bool value) override;
+
+    virtual void set_date_time(
+        orcus::spreadsheet::row_t row, orcus::spreadsheet::col_t col,
+        int year, int month, int day, int hours, int minutes, double seconds) override;
+
+    virtual void set_format(orcus::spreadsheet::row_t row, orcus::spreadsheet::col_t col, size_t xf_index) override;
+
+    virtual void set_format(orcus::spreadsheet::row_t row_start, orcus::spreadsheet::col_t col_start,
+            orcus::spreadsheet::row_t row_end, orcus::spreadsheet::col_t col_end, size_t xf_index) override;
+
+    virtual void set_column_format(col_t col, col_t col_span, std::size_t xf_index) override;
+
+    virtual void set_row_format(row_t col, std::size_t xf_index) override;
+
+    virtual void fill_down_cells(row_t src_row, col_t src_col, row_t range_size) override;
+
+    virtual orcus::spreadsheet::range_size_t get_sheet_size() const override;
+};
+
+class import_factory : public orcus::spreadsheet::iface::import_factory
+{
+public:
+    virtual ~import_factory() override;
+
+    virtual orcus::spreadsheet::iface::import_global_settings* get_global_settings() override;
+
+    virtual orcus::spreadsheet::iface::import_shared_strings* get_shared_strings() override;
+
+    virtual orcus::spreadsheet::iface::import_styles* get_styles() override;
+
+    virtual orcus::spreadsheet::iface::import_sheet* append_sheet(
+        orcus::spreadsheet::sheet_t sheet_index, std::string_view name) override;
+
+    virtual orcus::spreadsheet::iface::import_sheet* get_sheet(std::string_view name) override;
+
+    virtual orcus::spreadsheet::iface::import_sheet* get_sheet(orcus::spreadsheet::sheet_t sheet_index) override;
+
+    virtual void finalize() override;
+};
+
+}}}
+
+#endif
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/src/include/mso/Makefile.am b/src/include/mso/Makefile.am
new file mode 100644
index 0000000..0865972
--- /dev/null
+++ b/src/include/mso/Makefile.am
@@ -0,0 +1,3 @@
+
+EXTRA_DIST = \
+    encryption_info.hpp
diff --git a/src/include/mso/Makefile.in b/src/include/mso/Makefile.in
new file mode 100644
index 0000000..c4f6e99
--- /dev/null
+++ b/src/include/mso/Makefile.in
@@ -0,0 +1,542 @@
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+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+
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+
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+
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+	  case '$(am__configure_deps)' in \
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+	        && { if test -f $@; then exit 0; else break; fi; }; \
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+	  *config.status*) \
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diff --git a/src/include/mso/encryption_info.hpp b/src/include/mso/encryption_info.hpp
new file mode 100644
index 0000000..efda244
--- /dev/null
+++ b/src/include/mso/encryption_info.hpp
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef __ORCUS_MSO_ENCRYPTION_INFO_HPP__
+#define __ORCUS_MSO_ENCRYPTION_INFO_HPP__
+
+#include <orcus/env.hpp>
+
+#include <cstdlib>
+
+namespace orcus { namespace mso {
+
+struct encryption_info_reader_impl;
+
+class ORCUS_MSO_DLLPUBLIC encryption_info_reader
+{
+    encryption_info_reader(const encryption_info_reader&); // disabled
+    encryption_info_reader& operator= (const encryption_info_reader&); // disabled
+
+public:
+    encryption_info_reader();
+    ~encryption_info_reader();
+
+    void read(const char* p, size_t n);
+
+private:
+    encryption_info_reader_impl* mp_impl;
+};
+
+}}
+
+#endif
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/src/include/numeric_parser.hpp b/src/include/numeric_parser.hpp
new file mode 100644
index 0000000..fc047b6
--- /dev/null
+++ b/src/include/numeric_parser.hpp
@@ -0,0 +1,216 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_ORCUS_DETAIL_NUMERIC_PARSER_HPP
+#define INCLUDED_ORCUS_DETAIL_NUMERIC_PARSER_HPP
+
+#include <mdds/global.hpp>
+#include <limits>
+#include <cmath>
+
+namespace orcus { namespace detail {
+
+struct generic_parser_trait {};
+
+struct json_parser_trait {};
+
+struct parser_state
+{
+    /** number of digits before the decimal point. */
+    int int_digit_count = 0;
+    /** number of digits after the decimal point. */
+    int frac_digit_count = 0;
+    /** first digit before the decimal point. */
+    char first_int_digit = 0;
+    double parsed_value = 0.0;
+    double divisor = 1.0;
+    bool has_digit = false;
+    bool has_decimal = false;
+    bool negative_sign = false;
+};
+
+template<typename _Trait>
+double make_final_value(const parser_state& state);
+
+template<>
+inline double make_final_value<generic_parser_trait>(const parser_state& state)
+{
+    return state.negative_sign ? -state.parsed_value : state.parsed_value;
+}
+
+template<>
+inline double make_final_value<json_parser_trait>(const parser_state& state)
+{
+    if (state.int_digit_count > 1 && state.first_int_digit == 0)
+        // leading zeros not allowed.
+        return std::numeric_limits<double>::quiet_NaN();
+
+    if (state.has_decimal && (state.frac_digit_count == 0 || state.int_digit_count == 0))
+        // at least one digit is required both before and after the decimal point.
+        return std::numeric_limits<double>::quiet_NaN();
+
+    return state.negative_sign ? -state.parsed_value : state.parsed_value;
+}
+
+template<typename _Trait>
+class numeric_parser
+{
+    using trait_type = _Trait;
+
+    const char* mp_char;
+    const char* mp_end;
+
+    parser_state m_state;
+
+    bool check_sign()
+    {
+        bool negative_sign = false;
+
+        // Check for presence of a sign.
+        if (mp_char != mp_end)
+        {
+            switch (*mp_char)
+            {
+                case '+':
+                    ++mp_char;
+                    break;
+                case '-':
+                    negative_sign = true;
+                    ++mp_char;
+                    break;
+                default:
+                    ;
+            }
+        }
+
+        return negative_sign;
+    }
+
+    /**
+     * Parse the exponent part of a numeric string.
+     *
+     * @return extra divisor to multiply to the original divisor, or 0.0 if the
+     *         parsing fails.
+     */
+    double parse_exponent()
+    {
+        const char* p0 = mp_char - 1; // original position to restore to in case of parsing failure. The e needs to be added back as well.
+        double exponent = 0.0;
+        bool valid = false;
+
+        bool negative_sign = check_sign();
+
+        for (; mp_char != mp_end; ++mp_char)
+        {
+            if (*mp_char < '0' || '9' < *mp_char)
+            {
+                // Non-digit encountered.
+                break;
+            }
+
+            valid = true;
+            exponent *= 10.0;
+            exponent += *mp_char - '0';
+        }
+
+        if (!valid)
+        {
+            // Restore the original position on failed parsing.
+            mp_char = p0;
+            return 0.0;
+        }
+
+        if (!negative_sign)
+            exponent = -exponent;
+
+        return std::pow(10.0, exponent);
+    }
+
+public:
+    numeric_parser(const char* p, const char* p_end) :
+        mp_char(p),
+        mp_end(p_end) {}
+
+    /**
+     * Start parsing the string.
+     *
+     * @return a finite value upon successful parsing, else NaN is returned.
+     */
+    double parse()
+    {
+        m_state.negative_sign = check_sign();
+
+        for (; mp_char != mp_end; ++mp_char)
+        {
+            if (*mp_char == '.')
+            {
+                if (m_state.has_decimal)
+                {
+                    // Second '.' encountered. Terminate the parsing.
+                    m_state.parsed_value /= m_state.divisor;
+                    return make_final_value<trait_type>(m_state);
+                }
+
+                m_state.has_decimal = true;
+                continue;
+            }
+
+            if (m_state.has_digit && (*mp_char == 'e' || *mp_char == 'E'))
+            {
+                ++mp_char;
+                double extra_divisor = parse_exponent();
+                if (extra_divisor)
+                    m_state.divisor *= extra_divisor;
+                break;
+            }
+
+            if (*mp_char < '0' || '9' < *mp_char)
+            {
+                if (!m_state.has_digit) // without a digit we have no numbers
+                    return std::numeric_limits<double>::quiet_NaN();
+
+                m_state.parsed_value /= m_state.divisor;
+                return make_final_value<trait_type>(m_state);
+            }
+
+            m_state.has_digit = true;
+            char digit = *mp_char - '0';
+
+            if (m_state.has_decimal)
+                ++m_state.frac_digit_count;
+            else
+            {
+                if (!m_state.int_digit_count)
+                    m_state.first_int_digit = digit;
+
+                ++m_state.int_digit_count;
+            }
+
+            m_state.parsed_value *= 10.0;
+            m_state.parsed_value += digit;
+
+            if (m_state.has_decimal)
+                m_state.divisor *= 10.0;
+        }
+        if (!m_state.has_digit) // without a digit we have no numbers
+            return std::numeric_limits<double>::quiet_NaN();
+
+        m_state.parsed_value /= m_state.divisor;
+        return make_final_value<trait_type>(m_state);
+    }
+
+    const char* get_char_position() const
+    {
+        return mp_char;
+    }
+};
+
+}} // namespace orcus::detail
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/src/include/ostream_utils.hpp b/src/include/ostream_utils.hpp
new file mode 100644
index 0000000..634b1f5
--- /dev/null
+++ b/src/include/ostream_utils.hpp
@@ -0,0 +1,34 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <ostream>
+#include <string_view>
+
+namespace orcus { namespace detail {
+
+class ostream_format_guard
+{
+    std::ostream& m_os;
+    std::ios_base::fmtflags m_flags;
+public:
+    ostream_format_guard(std::ostream& os) :
+        m_os(os)
+    {
+        m_flags = m_os.flags();
+    }
+
+    ~ostream_format_guard()
+    {
+        m_os.setf(m_flags);
+    }
+};
+
+}}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/src/include/test_global.hpp b/src/include/test_global.hpp
new file mode 100644
index 0000000..e217086
--- /dev/null
+++ b/src/include/test_global.hpp
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_ORCUS_TEST_GLOBAL_HPP
+#define INCLUDED_ORCUS_TEST_GLOBAL_HPP
+
+#ifdef NDEBUG
+// release build
+#undef NDEBUG
+#include <cassert>
+#else
+// debug build
+#include <cassert>
+#endif
+
+#include <iostream>
+#include <chrono>
+
+namespace orcus { namespace test {
+
+class stack_printer
+{
+public:
+    explicit stack_printer(const char* msg);
+    ~stack_printer();
+
+private:
+    double get_time() const;
+
+    std::string m_msg;
+    double m_start_time;
+};
+
+class assert_error : public std::exception
+{
+    std::string m_msg;
+
+public:
+    assert_error(const char* filename, size_t line_no, const char* msg);
+
+    virtual const char* what() const noexcept override;
+};
+
+void verify_content(
+    const char* filename, size_t line_no, std::string_view expected, const std::string& actual);
+
+}} // namespace orcus::test
+
+#define ORCUS_TEST_FUNC_SCOPE orcus::test::stack_printer __sp__(__func__)
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */