Mercurial > minori
diff dep/pugixml/docs/samples/load_stream.cpp @ 367:8d45d892be88 default tip
*: instead of pugixml, use Qt XML features
this means we have one extra Qt dependency though...
author | Paper <paper@tflc.us> |
---|---|
date | Sun, 17 Nov 2024 22:55:47 -0500 |
parents | 886f66775f31 |
children |
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--- a/dep/pugixml/docs/samples/load_stream.cpp Sun Nov 17 19:56:01 2024 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,97 +0,0 @@ -#include "pugixml.hpp" - -#include <fstream> -#include <iomanip> -#include <iostream> - -void print_doc(const char* message, const pugi::xml_document& doc, const pugi::xml_parse_result& result) -{ - std::cout - << message - << "\t: load result '" << result.description() << "'" - << ", first character of root name: U+" << std::hex << std::uppercase << std::setw(4) << std::setfill('0') << pugi::as_wide(doc.first_child().name())[0] - << ", year: " << doc.first_child().first_child().first_child().child_value() - << std::endl; -} - -bool try_imbue(std::wistream& stream, const char* name) -{ - try - { - stream.imbue(std::locale(name)); - - return true; - } - catch (const std::exception&) - { - return false; - } -} - -int main() -{ - pugi::xml_document doc; - - { - // 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); - } - - { - std::ifstream stream("weekly-utf-16.xml"); - pugi::xml_parse_result result = doc.load(stream); - - // first character of root name: U+9031, year: 1997 - print_doc("UTF16 file from narrow stream", doc, result); - } - - { - // Since wide streams are treated as UTF-16/32 ones, you can't load the UTF-8 file from a wide stream - // directly if you have localized characters; you'll have to provide a UTF8 locale (there is no - // standard one; you can use utf8_codecvt_facet from Boost or codecvt_utf8 from C++0x) - std::wifstream stream("weekly-utf-8.xml"); - - if (try_imbue(stream, "en_US.UTF-8")) // try Linux encoding - { - pugi::xml_parse_result result = doc.load(stream); - - // first character of root name: U+00E9, year: 1997 - print_doc("UTF8 file from wide stream", doc, result); - } - else - { - std::cout << "UTF-8 locale is not available\n"; - } - } - - { - // Since wide streams are treated as UTF-16/32 ones, you can't load the UTF-16 file from a wide stream without - // using custom codecvt; you can use codecvt_utf16 from C++0x - } - - { - // Since encoding names are non-standard, you can't load the Shift-JIS (or any other non-ASCII) file - // from a wide stream portably - std::wifstream stream("weekly-shift_jis.xml"); - - if (try_imbue(stream, ".932") || // try Microsoft encoding - try_imbue(stream, "ja_JP.SJIS")) // try Linux encoding; run "localedef -i ja_JP -c -f SHIFT_JIS /usr/lib/locale/ja_JP.SJIS" to get it - { - pugi::xml_parse_result result = doc.load(stream); - - // first character of root name: U+9031, year: 1997 - print_doc("Shift-JIS file from wide stream", doc, result); - } - else - { - std::cout << "Shift-JIS locale is not available\n"; - } - } -} - -// vim:et