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2023年12月16日发(作者：java在线编辑excel)
{html_char[0] = uchari[0] & 0xFF;html_char[1] = uchari[1] & 0xFF;}else{html_char[0] = uchari[1] & 0xFF;html_char[1] = uchari[0] & 0xFF;}}void OneUnicode2UTF8(const char* unicode_char,size_t unicode_char_length,char* utf_char){//unicode: 0x192->110010010 ,utf8:0xC692->1110int value = 0;memcpy(&value,unicode_char,unicode_char_length);if (value >= 0x0000 && value <= 0x007F){utf_char[0] = unicode_char[0];}else if (value >= 0x0080 && value <= 0x07FF){utf_char[0] = ((value >> 6) | 0xC0);utf_char[1] = ((value & 0x3F) | 0x80);}else if (value >= 0x0800 && value <= 0xFFFF){utf_char[0] = ((value >> 12) | 0xE0);utf_char[1] = ((value >> 6 & 0x3F) | 0x80);utf_char[2] = ((value & 0x3F) | 0x80);}else if (value >= 0x10000 && value <= 0x10FFFF){utf_char[0] = (value >> 18 | 0xF0);utf_char[1] = ((value >> 12 & 0x3F) | 0x80);
const int kMaxEntityLength = 4;char entity_name[20];const int kMaxEntityNameLength = 18;char unicode[3];char utf8[4];while(true){if(!start_amp || !(*start_amp)){break;}pos_amp = strchr(start_amp,'&');if(!pos_amp){(start_amp);break;}int pos_no = pos_amp - pos_semicolon;if(pos_no > 0){(start_amp,pos_no);start_amp = pos_amp;}char* pos_amp1 = pos_amp+1;if(!pos_amp1 || !(*pos_amp1)){string t2(start_amp);(start_amp);break;}if(isalpha(*pos_amp1)){pos_semicolon = strchr(pos_amp1,';');if(pos_semicolon)
printf("Hello, worldn");string str;const char *html_str = "ΖabcdΕhello©⇒⇒""ƒ…" "asfas‡dfeΥΨΩn↓n⋅nωmmm1jh";str = UnescapeUTFHTMLContent(html_str);cout << "str: " << str << endl;html_str = "∠";str = UnescapeUTFHTMLContent(html_str);cout << "str: " << str << endl;html_str = "∠;;#8736;";str = UnescapeUTFHTMLContent(html_str);cout << "str: " << str << endl;html_str = "∠;&";str = UnescapeUTFHTMLContent(html_str);cout << "str: " << str << endl;html_str = "∠;&";str = UnescapeUTFHTMLContent(html_str);cout << "str: " << str << endl;html_str = "∠;&";str = UnescapeUTFHTMLContent(html_str);cout << "str1: " << str << endl;html_str = "ab";str = UnescapeUTFHTMLContent(html_str);cout << "ab: " << str << endl;return 0;}str: ΖabcdΕhello©⇒⇒ƒ…asfas‡dfeΥPsiΩn↓nsdotnωmmm1jhstr:∠str:∠;;#8736;
str:∠;&str:∠;ampstr1:∠;&ab: ab
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