docs: Use AsciiDoc-compatible comments in samples

docs/samples/custom_memory_management.cpp

@@ -2,7 +2,7 @@
 
 #include <new>
 
-//[code_custom_memory_management_decl
+// tag::decl[]
 void* custom_allocate(size_t size)
 {
     return new (std::nothrow) char[size];
@@ -12,13 +12,13 @@ void custom_deallocate(void* ptr)
 {
     delete[] static_cast<char*>(ptr);
 }
-//]
+// end::decl[]
 
 int main()
 {
-//[code_custom_memory_management_call
+// tag::call[]
     pugi::set_memory_management_functions(custom_allocate, custom_deallocate);
-//]
+// end::call[]
 
     pugi::xml_document doc;
     doc.load_string("<node/>");

docs/samples/include.cpp

@@ -3,7 +3,7 @@
 #include <string.h>
 #include <iostream>
 
-//[code_include
+// tag::code[]
 bool load_preprocess(pugi::xml_document& doc, const char* path);
 
 bool preprocess(pugi::xml_node node)
@@ -51,7 +51,7 @@ bool load_preprocess(pugi::xml_document& doc, const char* path)
     
     return result ? preprocess(doc) : false;
 }
-//]
+// end::code[]
 
 int main()
 {

docs/samples/load_error_handling.cpp

@@ -4,19 +4,21 @@
 
 void check_xml(const char* source)
 {
-//[code_load_error_handling
+// tag::code[]
     pugi::xml_document doc;
     pugi::xml_parse_result result = doc.load_string(source);
 
     if (result)
+    {
         std::cout << "XML [" << source << "] parsed without errors, attr value: [" << doc.child("node").attribute("attr").value() << "]\n\n";
+    }
     else
     {
         std::cout << "XML [" << source << "] parsed with errors, attr value: [" << doc.child("node").attribute("attr").value() << "]\n";
         std::cout << "Error description: " << result.description() << "\n";
         std::cout << "Error offset: " << result.offset << " (error at [..." << (source + result.offset) << "]\n\n";
     }
-//]
+// end::code[]
 }
 
 int main()

docs/samples/load_file.cpp

@@ -4,13 +4,13 @@
 
 int main()
 {
-//[code_load_file
+// tag::code[]
     pugi::xml_document doc;
 
     pugi::xml_parse_result result = doc.load_file("tree.xml");
 
     std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
-//]
+// end::code[]
 }
 
 // vim:et

docs/samples/load_memory.cpp

@@ -5,41 +5,42 @@
 
 int main()
 {
-//[code_load_memory_decl
+// tag::decl[]
     const char source[] = "<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>";
     size_t size = sizeof(source);
-//]
+// end::decl[]
 
     pugi::xml_document doc;
 
     {
-    //[code_load_memory_buffer
+    // tag::load_buffer[]
         // You can use load_buffer to load document from immutable memory block:
         pugi::xml_parse_result result = doc.load_buffer(source, size);
-    //]
+    // end::load_buffer[]
 
         std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
     }
 
     {
-    //[code_load_memory_buffer_inplace
+    // tag::load_buffer_inplace_begin[]
         // You can use load_buffer_inplace to load document from mutable memory block; the block's lifetime must exceed that of document
         char* buffer = new char[size];
         memcpy(buffer, source, size);
 
         // The block can be allocated by any method; the block is modified during parsing
         pugi::xml_parse_result result = doc.load_buffer_inplace(buffer, size);
+    // end::load_buffer_inplace_begin[]
 
-    //<-
         std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
-    //->
+
+    // tag::load_buffer_inplace_end[]
         // You have to destroy the block yourself after the document is no longer used
         delete[] buffer;
-    //]
+    // end::load_buffer_inplace_end[]
     }
 
     {
-    //[code_load_memory_buffer_inplace_own
+    // tag::load_buffer_inplace_own[]
         // You can use load_buffer_inplace_own to load document from mutable memory block and to pass the ownership of this block
         // The block has to be allocated via pugixml allocation function - using i.e. operator new here is incorrect
         char* buffer = static_cast<char*>(pugi::get_memory_allocation_function()(size));
@@ -47,16 +48,16 @@ int main()
 
         // The block will be deleted by the document
         pugi::xml_parse_result result = doc.load_buffer_inplace_own(buffer, size);
-    //]
+    // end::load_buffer_inplace_own[]
 
         std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
     }
 
     {
-    //[code_load_memory_string
+    // tag::load_string[]
         // You can use load to load document from null-terminated strings, for example literals:
         pugi::xml_parse_result result = doc.load_string("<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>");
-    //]
+    // end::load_string[]
 
         std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
     }

docs/samples/load_options.cpp

@@ -6,7 +6,7 @@ int main()
 {
     pugi::xml_document doc;
 
-//[code_load_options
+// tag::code[]
     const char* source = "<!--comment--><node>&lt;</node>";
 
     // Parsing with default options; note that comment node is not added to the tree, and entity reference &lt; is expanded
@@ -24,7 +24,7 @@ int main()
     // Parsing with minimal option mask; comment node is not added to the tree, and &lt; is not expanded
     doc.load_string(source, pugi::parse_minimal);
     std::cout << "First node value: [" << doc.first_child().value() << "], node child value: [" << doc.child_value("node") << "]\n";
-//]
+// end::code[]
 }
 
 // vim:et

docs/samples/load_stream.cpp

@@ -33,10 +33,10 @@ int main()
     pugi::xml_document doc;
 
     {
-    //[code_load_stream
+    // tag::code[]
         std::ifstream stream("weekly-utf-8.xml");
         pugi::xml_parse_result result = doc.load(stream);
-    //]
+    // end::code[]
 
         // first character of root name: U+9031, year: 1997
         print_doc("UTF8 file from narrow stream", doc, result);

docs/samples/modify_add.cpp

@@ -6,7 +6,7 @@ int main()
 {
     pugi::xml_document doc;
 
-    //[code_modify_add
+    // tag::code[]
     // add node with some name
     pugi::xml_node node = doc.append_child("node");
 
@@ -21,7 +21,7 @@ int main()
     param.append_attribute("name") = "version";
     param.append_attribute("value") = 1.1;
     param.insert_attribute_after("type", param.attribute("name")) = "float";
-    //]
+    // end::code[]
 
     doc.print(std::cout);
 }

docs/samples/modify_base.cpp

@@ -8,7 +8,7 @@ int main()
     pugi::xml_document doc;
     if (!doc.load_string("<node id='123'>text</node><!-- comment -->", pugi::parse_default | pugi::parse_comments)) return -1;
 
-    //[code_modify_base_node
+    // tag::node[]
     pugi::xml_node node = doc.child("node");
 
     // change node name
@@ -21,9 +21,9 @@ int main()
 
     // we can't change value of the element or name of the comment
     std::cout << node.set_value("1") << ", " << doc.last_child().set_name("2") << std::endl;
-    //]
+    // end::node[]
 
-    //[code_modify_base_attr
+    // tag::attr[]
     pugi::xml_attribute attr = node.attribute("id");
 
     // change attribute name/value
@@ -37,7 +37,7 @@ int main()
     // we can also use assignment operators for more concise code
     attr = true;
     std::cout << "final attribute value: " << attr.value() << std::endl;
-    //]
+    // end::attr[]
 }
 
 // vim:et

docs/samples/modify_remove.cpp

@@ -7,7 +7,7 @@ int main()
     pugi::xml_document doc;
     if (!doc.load_string("<node><description>Simple node</description><param name='id' value='123'/></node>")) return -1;
 
-    //[code_modify_remove
+    // tag::code[]
     // remove description node with the whole subtree
     pugi::xml_node node = doc.child("node");
     node.remove_child("description");
@@ -19,7 +19,7 @@ int main()
     // we can also remove nodes/attributes by handles
     pugi::xml_attribute id = param.attribute("name");
     param.remove_attribute(id);
-    //]
+    // end::code[]
 
     doc.print(std::cout);
 }

docs/samples/save_custom_writer.cpp

@@ -4,7 +4,7 @@
 #include <iostream>
 #include <cstring>
 
-//[code_save_custom_writer
+// tag::code[]
 struct xml_string_writer: pugi::xml_writer
 {
     std::string result;
@@ -14,7 +14,7 @@ struct xml_string_writer: pugi::xml_writer
         result.append(static_cast<const char*>(data), size);
     }
 };
-//]
+// end::code[]
 
 struct xml_memory_writer: pugi::xml_writer
 {

docs/samples/save_declaration.cpp

@@ -4,7 +4,7 @@
 
 int main()
 {
-    //[code_save_declaration
+    // tag::code[]
     // get a test document
     pugi::xml_document doc;
     doc.load_string("<foo bar='baz'><call>hey</call></foo>");
@@ -21,7 +21,7 @@ int main()
     // </foo>
     doc.save(std::cout);
     std::cout << std::endl;
-    //]
+    // end::code[]
 }
 
 // vim:et

docs/samples/save_file.cpp

@@ -8,10 +8,10 @@ int main()
     pugi::xml_document doc;
     doc.load_string("<foo bar='baz'>hey</foo>");
 
-    //[code_save_file
+    // tag::code[]
     // save document to file
     std::cout << "Saving result: " << doc.save_file("save_file_output.xml") << std::endl;
-    //]
+    // end::code[]
 }
 
 // vim:et

docs/samples/save_options.cpp

@@ -4,7 +4,7 @@
 
 int main()
 {
-    //[code_save_options
+    // tag::code[]
     // get a test document
     pugi::xml_document doc;
     doc.load_string("<foo bar='baz'><call>hey</call></foo>");
@@ -42,7 +42,7 @@ int main()
     // <foo bar="baz"><call>hey</call></foo>
     doc.save(std::cout, "\t", pugi::format_raw | pugi::format_no_declaration);
     std::cout << std::endl;
-    //]
+    // end::code[]
 }
 
 // vim:et

docs/samples/save_stream.cpp

@@ -8,11 +8,11 @@ int main()
     pugi::xml_document doc;
     doc.load_string("<foo bar='baz'><call>hey</call></foo>");
 
-    //[code_save_stream
+    // tag::code[]
     // save document to standard output
     std::cout << "Document:\n";
     doc.save(std::cout);
-    //]
+    // end::code[]
 }
 
 // vim:et

docs/samples/save_subtree.cpp

@@ -4,7 +4,7 @@
 
 int main()
 {
-    //[code_save_subtree
+    // tag::code[]
     // get a test document
     pugi::xml_document doc;
     doc.load_string("<foo bar='baz'><call>hey</call></foo>");
@@ -20,7 +20,7 @@ int main()
     // print a subtree to standard output (prints <call>hey</call>)
     doc.child("foo").child("call").print(std::cout, "", pugi::format_raw);
     std::cout << std::endl;
-    //]
+    // end::code[]
 }
 
 // vim:et

docs/samples/text.cpp

@@ -11,23 +11,23 @@ int main()
 
     pugi::xml_node project = doc.child("project");
 
-    //[code_text_access
+    // tag::access[]
     std::cout << "Project name: " << project.child("name").text().get() << std::endl;
     std::cout << "Project version: " << project.child("version").text().as_double() << std::endl;
     std::cout << "Project visibility: " << (project.child("public").text().as_bool(/* def= */ true) ? "public" : "private") << std::endl;
     std::cout << "Project description: " << project.child("description").text().get() << std::endl;
-    //]
+    // end::access[]
 
     std::cout << std::endl;
 
-    //[code_text_modify
+    // tag::modify[]
     // change project version
     project.child("version").text() = 1.2;
 
     // add description element and set the contents
     // note that we do not have to explicitly add the node_pcdata child
     project.append_child("description").text().set("a test project");
-    //]
+    // end::modify[]
 
     doc.save(std::cout);
 }

docs/samples/traverse_base.cpp

@@ -10,7 +10,7 @@ int main()
 
     pugi::xml_node tools = doc.child("Profile").child("Tools");
 
-    //[code_traverse_base_basic
+    // tag::basic[]
     for (pugi::xml_node tool = tools.first_child(); tool; tool = tool.next_sibling())
     {
         std::cout << "Tool:";
@@ -22,11 +22,11 @@ int main()
 
         std::cout << std::endl;
     }
-    //]
+    // end::basic[]
 
     std::cout << std::endl;
 
-    //[code_traverse_base_data
+    // tag::data[]
     for (pugi::xml_node tool = tools.child("Tool"); tool; tool = tool.next_sibling("Tool"))
     {
         std::cout << "Tool " << tool.attribute("Filename").value();
@@ -34,18 +34,18 @@ int main()
         std::cout << ", Timeout " << tool.attribute("Timeout").as_int();
         std::cout << ", Description '" << tool.child_value("Description") << "'\n";
     }
-    //]
+    // end::data[]
 
     std::cout << std::endl;
 
-    //[code_traverse_base_contents
+    // tag::contents[]
     std::cout << "Tool for *.dae generation: " << tools.find_child_by_attribute("Tool", "OutputFileMasks", "*.dae").attribute("Filename").value() << "\n";
 
     for (pugi::xml_node tool = tools.child("Tool"); tool; tool = tool.next_sibling("Tool"))
     {
         std::cout << "Tool " << tool.attribute("Filename").value() << "\n";
     }
-    //]
+    // end::contents[]
 }
 
 // vim:et

docs/samples/traverse_iter.cpp

@@ -9,7 +9,7 @@ int main()
 
     pugi::xml_node tools = doc.child("Profile").child("Tools");
 
-    //[code_traverse_iter
+    // tag::code[]
     for (pugi::xml_node_iterator it = tools.begin(); it != tools.end(); ++it)
     {
         std::cout << "Tool:";
@@ -21,7 +21,7 @@ int main()
 
         std::cout << std::endl;
     }
-    //]
+    // end::code[]
 }
 
 // vim:et

docs/samples/traverse_predicate.cpp

@@ -3,7 +3,7 @@
 #include <string.h>
 #include <iostream>
 
-//[code_traverse_predicate_decl
+// tag::decl[]
 bool small_timeout(pugi::xml_node node)
 {
     return node.attribute("Timeout").as_int() < 20;
@@ -21,7 +21,7 @@ struct allow_remote_predicate
         return node.attribute("AllowRemote").as_bool();
     }
 };
-//]
+// end::decl[]
 
 int main()
 {
@@ -30,7 +30,7 @@ int main()
 
     pugi::xml_node tools = doc.child("Profile").child("Tools");
 
-    //[code_traverse_predicate_find
+    // tag::find[]
     // Find child via predicate (looks for direct children only)
     std::cout << tools.find_child(allow_remote_predicate()).attribute("Filename").value() << std::endl;
 
@@ -42,7 +42,7 @@ int main()
 
     // We can use simple functions instead of function objects
     std::cout << tools.find_child(small_timeout).attribute("Filename").value() << std::endl;
-    //]
+    // end::find[]
 }
 
 // vim:et

docs/samples/traverse_rangefor.cpp

@@ -9,7 +9,7 @@ int main()
 
     pugi::xml_node tools = doc.child("Profile").child("Tools");
 
-    //[code_traverse_rangefor
+    // tag::code[]
     for (pugi::xml_node tool: tools.children("Tool"))
     {
         std::cout << "Tool:";
@@ -26,7 +26,7 @@ int main()
 
         std::cout << std::endl;
     }
-    //]
+    // end::code[]
 }
 
 // vim:et

docs/samples/traverse_walker.cpp

@@ -7,7 +7,7 @@ const char* node_types[] =
     "null", "document", "element", "pcdata", "cdata", "comment", "pi", "declaration"
 };
 
-//[code_traverse_walker_impl
+// tag::impl[]
 struct simple_walker: pugi::xml_tree_walker
 {
     virtual bool for_each(pugi::xml_node& node)
@@ -19,17 +19,17 @@ struct simple_walker: pugi::xml_tree_walker
         return true; // continue traversal
     }
 };
-//]
+// end::impl[]
 
 int main()
 {
     pugi::xml_document doc;
     if (!doc.load_file("tree.xml")) return -1;
 
-    //[code_traverse_walker_traverse
+    // tag::traverse[]
     simple_walker walker;
     doc.traverse(walker);
-    //]
+    // end::traverse[]
 }
 
 // vim:et

docs/samples/xpath_error.cpp

@@ -7,7 +7,7 @@ int main()
     pugi::xml_document doc;
     if (!doc.load_file("xgconsole.xml")) return -1;
 
-//[code_xpath_error
+// tag::code[]
     // Exception is thrown for incorrect query syntax
     try
     {
@@ -37,7 +37,7 @@ int main()
     {
         std::cout << "Select failed: " << e.what() << std::endl;
     }
-//]
+// end::code[]
 }
 
 // vim:et

docs/samples/xpath_query.cpp

@@ -8,7 +8,7 @@ int main()
     pugi::xml_document doc;
     if (!doc.load_file("xgconsole.xml")) return -1;
 
-//[code_xpath_query
+// tag::code[]
     // Select nodes via compiled query
     pugi::xpath_query query_remote_tools("/Profile/Tools/Tool[@AllowRemote='true']");
 
@@ -30,7 +30,7 @@ int main()
 
         if (query_name_valid.evaluate_boolean(tool)) std::cout << s << std::endl;
     }
-//]
+// end::code[]
 }
 
 // vim:et

docs/samples/xpath_select.cpp

@@ -7,7 +7,7 @@ int main()
     pugi::xml_document doc;
     if (!doc.load_file("xgconsole.xml")) return -1;
 
-//[code_xpath_select
+// tag::code[]
     pugi::xpath_node_set tools = doc.select_nodes("/Profile/Tools/Tool[@AllowRemote='true' and @DeriveCaptionFrom='lastparam']");
 
     std::cout << "Tools:\n";
@@ -22,7 +22,7 @@ int main()
 
     if (build_tool)
         std::cout << "Build tool: " << build_tool.node().attribute("Filename").value() << "\n";
-//]
+// end::code[]
 }
 
 // vim:et

docs/samples/xpath_variables.cpp

@@ -8,7 +8,7 @@ int main()
     pugi::xml_document doc;
     if (!doc.load_file("xgconsole.xml")) return -1;
 
-//[code_xpath_variables
+// tag::code[]
     // Select nodes via compiled query
     pugi::xpath_variable_set vars;
     vars.add("remote", pugi::xpath_type_boolean);
@@ -32,7 +32,7 @@ int main()
 
     std::cout << "Local tool imm: ";
     tools_local_imm[0].node().print(std::cout);
-//]
+// end::code[]
 }
 
 // vim:et