Lib sconv

A simple codec conversion lib supporting string character set conversion between gbk, utf8 and unicode with no dependence, working on windows, linux, embedded system and everywhere(No dependence, really).

Implementation

The source code comes from iconv(utf8 to unicode) and http://icu-project.org/repos/icu/data/trunk/charset/source/gb18030/gbkuni30.txt mostly.

How to using it?

Just copy sconv.c sconv.h gbkuni30.h to your project dir and include sconv.c to makefile. It's has no dependence(Yes! Nothing!).

#include <stdio.h>
#include "sconv.h"

int main(int argc, char **argv)
{
    const char *p = "【我a是b中文】(1234)5《很多汉字》★{，。} ※┠╂◎☆§№";
    int size = sconv_gbk_to_unicode(p, -1, NULL, 0);
    wchar *unicode_str = new wchar[size / 2 + 1];
    size = sconv_gbk_to_unicode(p, -1, unicode_str, size);
    unicode_str[size / 2] = 0;

    printf("unicode: \n");
    for (int i = 0, cnt = 0; i < size / 2; i++, cnt++) {
        printf("%04x ", unicode_str[i]);
        if (cnt % 8 == 7) {
            printf("\n");
        }
    }
    printf("\n\n");

    size = sconv_unicode_to_gbk(unicode_str, -1, NULL, 0);
    char *ansi_str = new char[size + 1];
    size = sconv_unicode_to_gbk(unicode_str, -1, ansi_str, size);
    ansi_str[size] = 0;
    printf("ansi: %s\n", ansi_str);
    for (int i = 0, cnt = 0; i < size; i++, cnt++) {
        printf("%02x ", (unsigned char)ansi_str[i]);
        if (cnt % 16 == 15) {
            printf("\n");
        }
    }
    printf("\n\n");

    size = sconv_unicode_to_utf8(unicode_str, -1, NULL, 0);
    char *utf8_str = new char[size + 1];
    size = sconv_unicode_to_utf8(unicode_str, -1, utf8_str, size);
    utf8_str[size] = 0;
    printf("utf8: \n");
    for (int i = 0, cnt = 0; i < size; i++, cnt++) {
        printf("%02x ", (unsigned char)utf8_str[i]);
        if (cnt % 16 == 15) {
            printf("\n");
        }
    }
    printf("\n\n");

    size = sconv_utf8_to_unicode(utf8_str, -1, NULL, 0);
    wchar *unicode = new wchar[size / 2 + 1];
    size = sconv_utf8_to_unicode(utf8_str, -1, unicode, size);
    unicode[size / 2] = 0;
    printf("unicode: \n");
    for (int i = 0, cnt = 0; i < size / 2; i++, cnt++) {
        printf("%04x ", unicode[i]);
        if (cnt % 8 == 7) {
            printf("\n");
        }
    }
    printf("\n\n");
}