#include "il2cpp-config.h"
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#include "icalls/mscorlib/System.Text/Encoding.h"
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#include <ctype.h>
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#include <string>
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#include "os/Encoding.h"
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#include "vm/String.h"
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#include "utils/StringUtils.h"
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namespace il2cpp
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{
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namespace icalls
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{
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namespace mscorlib
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{
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namespace System
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{
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namespace Text
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{
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static const char *encodings[] =
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{
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(char*)1,
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"ascii", "us_ascii", "us", "ansi_x3.4_1968",
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"ansi_x3.4_1986", "cp367", "csascii", "ibm367",
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"iso_ir_6", "iso646_us", "iso_646.irv:1991",
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(char*)2,
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"utf_7", "csunicode11utf7", "unicode_1_1_utf_7",
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"unicode_2_0_utf_7", "x_unicode_1_1_utf_7",
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"x_unicode_2_0_utf_7",
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(char*)3,
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"utf_8", "unicode_1_1_utf_8", "unicode_2_0_utf_8",
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"x_unicode_1_1_utf_8", "x_unicode_2_0_utf_8",
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(char*)4,
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"utf_16", "UTF_16LE", "ucs_2", "unicode",
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"iso_10646_ucs2",
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(char*)5,
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"unicodefffe", "utf_16be",
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(char*)6,
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"iso_8859_1",
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(char*)0
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};
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Il2CppString* Encoding::InternalCodePage(int32_t *resultCodePage)
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{
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const int32_t want_name = *resultCodePage;
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*resultCodePage = -1;
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const std::string charSet = os::Encoding::GetCharSet();
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std::string codepage(charSet);
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for (size_t i = 0, length = codepage.length(); i < length; ++i)
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{
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char& c = codepage[i];
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if (isalpha(c))
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c = tolower(c);
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if (c == '-')
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c = '_';
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}
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// handle some common aliases
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const char* p = encodings[0];
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int code = 0;
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for (size_t i = 0; p != 0;)
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{
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if ((size_t)p < 7)
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{
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code = (int)(size_t)p;
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p = encodings[++i];
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continue;
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}
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if (codepage == p)
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{
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*resultCodePage = code;
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break;
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}
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p = encodings[++i];
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}
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if (codepage.find("utf_8") != std::string::npos)
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*resultCodePage |= 0x10000000;
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if (want_name && *resultCodePage == -1)
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return il2cpp::vm::String::NewWrapper(charSet.c_str());
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else
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return NULL;
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}
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} /* namespace Text */
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} /* namespace System */
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} /* namespace mscorlib */
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} /* namespace icalls */
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} /* namespace il2cpp */
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