1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#include "unicode.hh"
#include "configuration.hh"
#include <boost/scoped_ptr.hpp>
#include <glibmm/ustring.h>
#include <glib.h>
#include <sstream>
#include <stdexcept>
namespace {
// Codepage choices from config
static const char* codesets[] = { "CP1250", "CP1251", "CP1252", "CP1253", "CP1254", "CP1255", "CP1256", "CP1257", "CP1258" };
// Convert a string using Glib, throw exception on error.
// This is in fact (slightly modified) Glib::convert from glibmm.
std::string convert(const std::string& str, const std::string& to_codeset, const std::string& from_codeset) {
gsize bytes_written = 0;
GError* gerror = nullptr;
char *const buf = g_convert(
str.data(), str.size(), to_codeset.c_str(), from_codeset.c_str(),
nullptr, &bytes_written, &gerror);
if (gerror) throw std::runtime_error("Conversion error"); // Throw on error
std::string ret(buf, bytes_written);
g_free(buf);
return ret;
}
}
void convertToUTF8(std::stringstream &_stream, std::string _filename) {
try {
std::string data = _stream.str();
convert(data, "UTF-8", "UTF-8"); // Test if input is UTF-8
if (data.substr(0, 3) == "\xEF\xBB\xBF") {
std::clog << "unicode/warning: " << _filename << " UTF-8 BOM ignored. Please avoid editors that use BOMs (e.g. Notepad)." << std::endl;
_stream.str(data.substr(3)); // Remove BOM if there is one
}
} catch(...) {
const char* codeset = codesets[config["game/fallback_encoding"].i()];
if (!_filename.empty())
std::clog << "unicode/warning: " << _filename << " is not UTF-8.\n Assuming " << codeset
<< ". Use recode " << codeset << "..UTF-8 */*.txt to convert your files." << std::endl;
try {
_stream.str(convert(_stream.str(), "UTF-8", codeset)); // Convert from fallback encoding
} catch (...) {
// Filter out anything but ASCII
std::string tmp;
for (char ch; _stream.get(ch);) tmp += (ch >= 0x20 && ch < 0x7F) ? ch : '?';
}
}
}
std::string convertToUTF8(std::string const& str) {
std::stringstream ss(str);
convertToUTF8(ss);
return ss.str();
}
std::string unicodeCollate(std::string const& str) {
Glib::ustring ustr = str, ustr2;
if (ustr.substr(0, 4) == "The ") ustr = ustr.substr(4) + "the";
if (ustr.substr(0, 2) == "A ") ustr = ustr.substr(2) + "a";
// Remove all non-alnum characters
for (Glib::ustring::iterator it = ustr.begin(), end = ustr.end(); it != end; ++it) {
if (Glib::Unicode::isalnum(*it)) ustr2 += Glib::Unicode::tolower(*it);
}
return ustr2;
// Should use ustr2.casefold_collate_key() instead of tolower, but it seems to be crashing...
}
|
