diff options
Diffstat (limited to 'docs/samples/load_stream.cpp')
| -rw-r--r-- | docs/samples/load_stream.cpp | 158 |
1 files changed, 80 insertions, 78 deletions
diff --git a/docs/samples/load_stream.cpp b/docs/samples/load_stream.cpp index 830ba4b..c717eeb 100644 --- a/docs/samples/load_stream.cpp +++ b/docs/samples/load_stream.cpp @@ -6,90 +6,92 @@ 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;
+ 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;
- }
+ try
+ {
+ stream.imbue(std::locale(name));
+
+ return true;
+ }
+ catch (const std::exception&)
+ {
+ return false;
+ }
}
int main()
{
- pugi::xml_document doc;
-
- {
- //[code_load_stream
- std::ifstream stream("weekly-utf-8.xml");
- pugi::xml_parse_result result = doc.load(stream);
- //]
-
- // 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";
- }
- }
+ pugi::xml_document doc;
+
+ {
+ //[code_load_stream
+ std::ifstream stream("weekly-utf-8.xml");
+ pugi::xml_parse_result result = doc.load(stream);
+ //]
+
+ // 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
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