Adding upstream version 0.19.0.upstream/0.19.0upstream

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

7 files changed, 2621 insertions, 0 deletions

diff --git a/doc_example/Makefile.am b/doc_example/Makefile.am
new file mode 100644
index 0000000..d93e7a7
--- /dev/null
+++ b/doc_example/Makefile.am
@@ -0,0 +1,25 @@
+SUBDIRS = section_examples
+
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+	$(MDDS_CFLAGS) $(LIBIXION_CFLAGS) \
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+
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+
+EXTRA_PROGRAMS = \
+	document-simple \
+	model-context-simple
+
+document_simple_SOURCES = document_simple.cpp
+document_simple_LDADD = ../src/libixion/libixion-@IXION_API_VERSION@.la
+
+model_context_simple_SOURCES = model_context_simple.cpp
+model_context_simple_LDADD = ../src/libixion/libixion-@IXION_API_VERSION@.la
+
+TESTS = \
+	document-simple \
+	model-context-simple
+
+distclean-local:
+	rm -rf $(TESTS)
diff --git a/doc_example/Makefile.in b/doc_example/Makefile.in
new file mode 100644
index 0000000..1428176
--- /dev/null
+++ b/doc_example/Makefile.in
@@ -0,0 +1,1207 @@
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+
+check-TESTS: 
+	@list='$(RECHECK_LOGS)';           test -z "$$list" || rm -f $$list
+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
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+	log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+	exit $$?;
+recheck: all 
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	bases=`for i in $$bases; do echo $$i; done \
+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
+	        TEST_LOGS="$$log_list"; \
+	exit $$?
+document-simple.log: document-simple$(EXEEXT)
+	@p='document-simple$(EXEEXT)'; \
+	b='document-simple'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+model-context-simple.log: model-context-simple$(EXEEXT)
+	@p='model-context-simple$(EXEEXT)'; \
+	b='model-context-simple'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+.test.log:
+	@p='$<'; \
+	$(am__set_b); \
+	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+@am__EXEEXT_TRUE@.test$(EXEEXT).log:
+@am__EXEEXT_TRUE@	@p='$<'; \
+@am__EXEEXT_TRUE@	$(am__set_b); \
+@am__EXEEXT_TRUE@	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
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+@am__EXEEXT_TRUE@	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+@am__EXEEXT_TRUE@	"$$tst" $(AM_TESTS_FD_REDIRECT)
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	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
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-recursive
+all-am: Makefile $(PROGRAMS)
+installdirs: installdirs-recursive
+installdirs-am:
+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(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:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-binPROGRAMS clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-recursive
+		-rm -f ./$(DEPDIR)/document_simple.Po
+	-rm -f ./$(DEPDIR)/model_context_simple.Po
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-local distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
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+html-am:
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+info: info-recursive
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+install-exec-am: install-binPROGRAMS
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+maintainer-clean: maintainer-clean-recursive
+		-rm -f ./$(DEPDIR)/document_simple.Po
+	-rm -f ./$(DEPDIR)/model_context_simple.Po
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
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+	mostlyclean-libtool
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+.MAKE: $(am__recursive_targets) check-am install-am install-strip
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+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am \
+	am--depfiles check check-TESTS check-am clean \
+	clean-binPROGRAMS clean-generic clean-libtool cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-local distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-binPROGRAMS install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am recheck tags tags-am \
+	uninstall uninstall-am uninstall-binPROGRAMS
+
+.PRECIOUS: Makefile
+
+
+distclean-local:
+	rm -rf $(TESTS)
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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/doc_example/document_simple.cpp b/doc_example/document_simple.cpp
new file mode 100644
index 0000000..499a9a0
--- /dev/null
+++ b/doc_example/document_simple.cpp
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * Copyright (c) 2020 Kohei Yoshida
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ ************************************************************************/
+
+#include <ixion/document.hpp>
+#include <ixion/address.hpp>
+#include <ixion/macros.hpp>
+#include <iostream>
+
+using namespace std;
+
+int main(int argc, char** argv)
+{
+    ixion::document doc;
+    doc.append_sheet("MySheet");
+
+    // Now, populate it with some numeric values in A1:A10.
+    for (ixion::abs_address_t pos(0, 0, 0); pos.row <= 9; ++pos.row)
+    {
+        double value = pos.row + 1.0; // Set the row position + 1 as the cell value.
+        doc.set_numeric_cell(pos, value);
+    }
+
+    // Insert string values.
+    std::string s = "This cell contains a string value.";
+    doc.set_string_cell("B2", s);
+    doc.set_string_cell("B3", "This too contains a string value.");
+
+    doc.set_string_cell("MySheet!B4", "Yet another string value.");
+
+    // Now, let's insert a formula into A11 to sum up values in A1:A10, and calculate it afterward.
+    doc.set_formula_cell("A11", "SUM(A1:A10)");
+    doc.calculate(0);
+
+    double value = doc.get_numeric_value("A11");
+    cout << "value of A11: " << value << endl;
+
+    // Insert a new formula to A11.
+    doc.set_formula_cell("A11", "AVERAGE(A1:A10)");
+    doc.calculate(0);
+
+    value = doc.get_numeric_value("A11");
+    cout << "value of A11: " << value << endl;
+
+    // Overwrite A10 with a formula cell with no references.
+    doc.set_formula_cell("A10", "(100+50)/2");
+    doc.calculate(0);
+
+    value = doc.get_numeric_value("A10");
+    cout << "value of A10: " << value << endl;
+
+    value = doc.get_numeric_value("A11");
+    cout << "value of A11: " << value << endl;
+
+    return EXIT_SUCCESS;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/doc_example/model_context_simple.cpp b/doc_example/model_context_simple.cpp
new file mode 100644
index 0000000..082ff7e
--- /dev/null
+++ b/doc_example/model_context_simple.cpp
@@ -0,0 +1,142 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * Copyright (c) 2020 Kohei Yoshida
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ ************************************************************************/
+
+#include <ixion/model_context.hpp>
+#include <ixion/macros.hpp>
+#include <ixion/formula_name_resolver.hpp>
+#include <ixion/formula.hpp>
+#include <iostream>
+
+using namespace std;
+
+int main(int argc, char** argv)
+{
+    ixion::model_context cxt;
+
+    // First and foremost, insert a sheet.
+    cxt.append_sheet("MySheet");
+
+    // Now, populate it with some numeric values in A1:A10.
+    for (ixion::abs_address_t pos(0, 0, 0); pos.row <= 9; ++pos.row)
+    {
+        double value = pos.row + 1.0; // Set the row position + 1 as the cell value.
+        cxt.set_numeric_cell(pos, value);
+    }
+
+    // Insert a string value into B2.
+    ixion::abs_address_t B2(0, 1, 1);
+    std::string s = "This cell contains a string value.";
+    cxt.set_string_cell(B2, s);
+
+    // Insert a literal string value into B3.
+    ixion::abs_address_t B3(0, 2, 1);
+    cxt.set_string_cell(B3, "This too contains a string value.");
+
+    // Insert a string value into B4 via string identifier.
+    ixion::string_id_t sid = cxt.add_string("Yet another string value.");
+    ixion::abs_address_t B4(0, 3, 1);
+    cxt.set_string_cell(B4, sid);
+
+    // Now, let's insert a formula into A11 to sum up values in A1:A10.
+
+    // Tokenize formula string first.
+    std::unique_ptr<ixion::formula_name_resolver> resolver =
+        ixion::formula_name_resolver::get(ixion::formula_name_resolver_t::excel_a1, &cxt);
+
+    ixion::abs_address_t A11(0, 10, 0);
+    ixion::formula_tokens_t tokens = ixion::parse_formula_string(cxt, A11, *resolver, "SUM(A1:A10)");
+
+    // Set the tokens into the model.
+    const ixion::formula_cell* cell = cxt.set_formula_cell(A11, std::move(tokens));
+
+    // Register this formula cell for automatic dependency tracking.
+    ixion::register_formula_cell(cxt, A11, cell);
+
+    // Build a set of modified cells, to determine which formula cells depend
+    // on them eithe directly or indirectly.  Since we are performing initial
+    // calculation, we can flag the entire sheet to be "modified" to trigger
+    // all formula cells to be calculated.
+
+    ixion::rc_size_t sheet_size = cxt.get_sheet_size();
+    ixion::abs_range_t entire_sheet(0, 0, 0, sheet_size.row, sheet_size.column); // sheet, row, column, row span, column span
+    ixion::abs_range_set_t modified_cells{entire_sheet};
+
+    // Determine formula cells that need re-calculation given the modified cells.
+    // There should be only one formula cell in this example.
+    std::vector<ixion::abs_range_t> dirty_cells = ixion::query_and_sort_dirty_cells(cxt, modified_cells);
+    cout << "number of dirty cells: " << dirty_cells.size() << endl;
+    cout << "dirty cell: " << dirty_cells[0] << endl;
+
+    // Now perform calculation.
+    ixion::calculate_sorted_cells(cxt, dirty_cells, 0);
+
+    double value = cxt.get_numeric_value(A11);
+    cout << "value of A11: " << value << endl;
+
+    // Insert a new formula to A11.
+    tokens = ixion::parse_formula_string(cxt, A11, *resolver, "AVERAGE(A1:A10)");
+
+    // Before overwriting, make sure to UN-register the old cell.
+    ixion::unregister_formula_cell(cxt, A11);
+
+    // Set and register the new formula cell.
+    cell = cxt.set_formula_cell(A11, std::move(tokens));
+    ixion::register_formula_cell(cxt, A11, cell);
+
+    // This time, we know that none of the cell values have changed, but the
+    // formula A11 is updated & needs recalculation.
+    ixion::abs_range_set_t modified_formula_cells{A11};
+    dirty_cells = ixion::query_and_sort_dirty_cells(cxt, ixion::abs_range_set_t(), &modified_formula_cells);
+    cout << "number of dirty cells: " << dirty_cells.size() << endl;
+
+    // Perform calculation again.
+    ixion::calculate_sorted_cells(cxt, dirty_cells, 0);
+
+    value = cxt.get_numeric_value(A11);
+    cout << "value of A11: " << value << endl;
+
+    // Overwrite A10 with a formula cell with no references.
+    ixion::abs_address_t A10(0, 9, 0);
+    tokens = ixion::parse_formula_string(cxt, A10, *resolver, "(100+50)/2");
+    cxt.set_formula_cell(A10, std::move(tokens));
+    // No need to register this cell since it does not reference any other cells.
+
+    modified_formula_cells = { A10 };
+    dirty_cells = ixion::query_and_sort_dirty_cells(cxt, ixion::abs_range_set_t(), &modified_formula_cells);
+    cout << "number of dirty cells: " << dirty_cells.size() << endl;
+
+    ixion::calculate_sorted_cells(cxt, dirty_cells, 0);
+    value = cxt.get_numeric_value(A10);
+    cout << "value of A10: " << value << endl;
+    value = cxt.get_numeric_value(A11);
+    cout << "value of A11: " << value << endl;
+
+    return EXIT_SUCCESS;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/doc_example/section_examples/Makefile.am b/doc_example/section_examples/Makefile.am
new file mode 100644
index 0000000..eeb2993
--- /dev/null
+++ b/doc_example/section_examples/Makefile.am
@@ -0,0 +1,19 @@
+
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/include \
+	$(MDDS_CFLAGS) $(LIBIXION_CFLAGS) \
+	-DSRCDIR=\""$(top_srcdir)"\"
+
+bin_PROGRAMS =
+
+EXTRA_PROGRAMS = \
+	cell-access
+
+cell_access_SOURCES = cell_access.cpp
+cell_access_LDADD = ../../src/libixion/libixion-@IXION_API_VERSION@.la
+
+TESTS = \
+	cell-access
+
+distclean-local:
+	rm -rf $(TESTS)
diff --git a/doc_example/section_examples/Makefile.in b/doc_example/section_examples/Makefile.in
new file mode 100644
index 0000000..ad4d0cb
--- /dev/null
+++ b/doc_example/section_examples/Makefile.in
@@ -0,0 +1,1069 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
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+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
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+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
+	check-am clean clean-binPROGRAMS clean-generic clean-libtool \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-local \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-binPROGRAMS install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	recheck tags tags-am uninstall uninstall-am \
+	uninstall-binPROGRAMS
+
+.PRECIOUS: Makefile
+
+
+distclean-local:
+	rm -rf $(TESTS)
+
+# 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/doc_example/section_examples/cell_access.cpp b/doc_example/section_examples/cell_access.cpp
new file mode 100644
index 0000000..06c4a78
--- /dev/null
+++ b/doc_example/section_examples/cell_access.cpp
@@ -0,0 +1,77 @@
+#include <iostream>
+#include <ixion/document.hpp>
+#include <ixion/model_context.hpp>
+#include <ixion/cell_access.hpp>
+#include <ixion/address.hpp>
+
+using namespace std;
+
+void access(const ixion::cell_access& ca)
+{
+    switch (ca.get_value_type())
+    {
+        case ixion::cell_value_t::numeric:
+        {
+            double v = ca.get_numeric_value();
+            cout << "numeric value: " << v << endl;
+            break;
+        }
+        case ixion::cell_value_t::string:
+        {
+            std::string_view s = ca.get_string_value();
+            cout << "string value: " << s << endl;
+            break;
+        }
+        case ixion::cell_value_t::boolean:
+        {
+            cout << "boolean value: " << ca.get_boolean_value() << endl;
+            break;
+        }
+        case ixion::cell_value_t::error:
+        {
+            ixion::formula_error_t err = ca.get_error_value();
+            cout << "error value: " << ixion::get_formula_error_name(err) << endl;
+            break;
+        }
+        case ixion::cell_value_t::empty:
+        {
+            cout << "empty cell" << endl;
+            break;
+        }
+        default:
+            cout << "???" << endl;
+    }
+}
+
+void from_document()
+{
+    ixion::document doc;
+    doc.append_sheet("Sheet");
+
+    // fill this document
+
+    ixion::cell_access ca = doc.get_cell_access("A1");
+
+    access(ca);
+}
+
+void from_model_context()
+{
+    ixion::model_context cxt;
+    cxt.append_sheet("Sheet");
+
+    // fill this model context
+
+    ixion::abs_address_t A1(0, 0, 0);
+    ixion::cell_access ca = cxt.get_cell_access(A1);
+
+    access(ca);
+}
+
+int main(int argc, char** argv)
+{
+    from_document();
+    from_model_context();
+
+    return EXIT_SUCCESS;
+}