diff options
Diffstat (limited to 'iconvlite.cpp')
| -rw-r--r-- | iconvlite.cpp | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/iconvlite.cpp b/iconvlite.cpp new file mode 100644 index 0000000..a81ab70 --- /dev/null +++ b/iconvlite.cpp @@ -0,0 +1,105 @@ +#include <iostream> +#include "iconvlite.h" + +using namespace std; + +static void cp2utf1(char *out, const char *in) { + static const int table[128] = { + 0x82D0,0x83D0,0x9A80E2,0x93D1,0x9E80E2,0xA680E2,0xA080E2,0xA180E2, + 0xAC82E2,0xB080E2,0x89D0,0xB980E2,0x8AD0,0x8CD0,0x8BD0,0x8FD0, + 0x92D1,0x9880E2,0x9980E2,0x9C80E2,0x9D80E2,0xA280E2,0x9380E2,0x9480E2, + 0,0xA284E2,0x99D1,0xBA80E2,0x9AD1,0x9CD1,0x9BD1,0x9FD1, + 0xA0C2,0x8ED0,0x9ED1,0x88D0,0xA4C2,0x90D2,0xA6C2,0xA7C2, + 0x81D0,0xA9C2,0x84D0,0xABC2,0xACC2,0xADC2,0xAEC2,0x87D0, + 0xB0C2,0xB1C2,0x86D0,0x96D1,0x91D2,0xB5C2,0xB6C2,0xB7C2, + 0x91D1,0x9684E2,0x94D1,0xBBC2,0x98D1,0x85D0,0x95D1,0x97D1, + 0x90D0,0x91D0,0x92D0,0x93D0,0x94D0,0x95D0,0x96D0,0x97D0, + 0x98D0,0x99D0,0x9AD0,0x9BD0,0x9CD0,0x9DD0,0x9ED0,0x9FD0, + 0xA0D0,0xA1D0,0xA2D0,0xA3D0,0xA4D0,0xA5D0,0xA6D0,0xA7D0, + 0xA8D0,0xA9D0,0xAAD0,0xABD0,0xACD0,0xADD0,0xAED0,0xAFD0, + 0xB0D0,0xB1D0,0xB2D0,0xB3D0,0xB4D0,0xB5D0,0xB6D0,0xB7D0, + 0xB8D0,0xB9D0,0xBAD0,0xBBD0,0xBCD0,0xBDD0,0xBED0,0xBFD0, + 0x80D1,0x81D1,0x82D1,0x83D1,0x84D1,0x85D1,0x86D1,0x87D1, + 0x88D1,0x89D1,0x8AD1,0x8BD1,0x8CD1,0x8DD1,0x8ED1,0x8FD1 + }; + while (*in) + if (*in & 0x80) { + int v = table[(int)(0x7f & *in++)]; + if (!v) + continue; + *out++ = (char)v; + *out++ = (char)(v >> 8); + if (v >>= 16) + *out++ = (char)v; + } + else + *out++ = *in++; + *out = 0; +} +string cp2utf(string s) { + int c,i; + int len = s.size(); + string ns; + for(i=0; i<len; i++) { + c=s[i]; + char buf[4], in[2] = {0, 0}; + *in = c; + cp2utf1(buf, in); + ns+=string(buf); + } + return ns; +} + +string utf2cp(string s) { + size_t len = s.size(); + const char *buff = s.c_str(); + char *output = new char[len]; + convert_utf8_to_windows1251(buff, output, len); + string ns(output); + return ns; +} + +int convert_utf8_to_windows1251(const char* utf8, char* windows1251, size_t n) +{ + int i = 0; + int j = 0; + for(; i < (int)n && utf8[i] != 0; ++i) { + char prefix = utf8[i]; + char suffix = utf8[i+1]; + if ((prefix & 0x80) == 0) { + windows1251[j] = (char)prefix; + ++j; + } else if ((~prefix) & 0x20) { + int first5bit = prefix & 0x1F; + first5bit <<= 6; + int sec6bit = suffix & 0x3F; + int unicode_char = first5bit + sec6bit; + + if ( unicode_char >= 0x410 && unicode_char <= 0x44F ) { + windows1251[j] = (char)(unicode_char - 0x350); + } else if (unicode_char >= 0x80 && unicode_char <= 0xFF) { + windows1251[j] = (char)(unicode_char); + } else if (unicode_char >= 0x402 && unicode_char <= 0x403) { + windows1251[j] = (char)(unicode_char - 0x382); + } else { + int count = sizeof(g_letters) / sizeof(Letter); + for (int k = 0; k < count; ++k) { + if (unicode_char == g_letters[k].unicode) { + windows1251[j] = g_letters[k].win1251; + goto NEXT_LETTER; + } + } + // can't convert this char + return 0; + } +NEXT_LETTER: + ++i; + ++j; + } else { + // can't convert this chars + return 0; + } + } + windows1251[j] = 0; + return 1; +}
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