Kuxazululiwe: chaza i-unicode

Unicode incazelo yemboni yekhompyutha ethuthukisiwe ukuze ihlanganise, imele, futhi ilawule umbhalo ovezwe ezinhlelweni zokubhala eziningi zomhlaba. Isuka kuzinhlamvu eziyisisekelo zesiLatini iye emibhalweni eyinkimbinkimbi njengezilimi zesiShayina, isiKorea, nesiNdiya.

Ekuhlelweni, ukuqonda i-Unicode kubalulekile ngenxa yokwenziwa kwedijithali ngokushesha kwezilimi ezahlukahlukene zomhlaba. Ngokuqondile ku C ++, ukuqonda okufanele nokusebenzisa i-Unocode kungaqinisekisa ukuthi isofthiwe oyithuthukisayo izophatha imibhalo yezilimi ezihlukahlukene ngaphandle komthungo.

Ukuqonda i-Unicode ku-C++

Emgogodleni wayo, i-Unicode imane iyisethi 'yamaphuzu ekhodi'. Kuchazwa njengezinombolo ezisuka ku-0 kuye ku-1,114,111 (0x10FFFF ku-hexadecimal), amelela izinhlamvu ngazinye. Ngamagama ayisisekelo, uhlamvu ngalunye, inombolo, uphawu lokubhala, i-emoji, noma uphawu luhambisana 'nephoyinti lekhodi' eliyingqayizivele. Lawa maphoyinti ekhodi abe esebhalwa ngekhodi ngezinga elithile ukuwamela endaweni yokugcina ephathekayo efana ne-UTF-8, UTF-16, UTF-32 njll.

// Isimemezelo nokuphrinta iyunithi yezinhlamvu ye-Unicode ku-C++
std::wstring unicode_string = L”Sawubona!
std::wcout << unicode_string; [/ikhodi]

Ukuguqula Phakathi Kombhalo Wekhodi We-Unicode

Izinhlelo zokusebenza nezinhlelo ezahlukene zingase zisebenzise amakhodi e-Unicode ahlukene okwenza kubaluleke ukuba nekhono ekuguquleni phakathi kombhalo wekhodi ohlukahlukene.

[ikhodi ulimi=”C++”]
#hlanganisa
#hlanganisa

// Umsebenzi wokuguqula iyunithi yezinhlamvu ye-UTF-8 ibe yi-UTF-16
std::string narrow_string(“Sawubona!”);
std::wstring_convert> isiguquli;
std::wstring wide_string = converter.from_bytes(narrow_string);

Uma udinga ukuguqula iyunithi yezinhlamvu ye-UTF-16 ibe yi-UTF-8 ku-C++, uzovele uhlehlise umsebenzi.

Imisebenzi Nemitapo yolwazi yokuphatha i-Unicode

I-C++ ihlinzeka ngamalabhulali ahlukahlukene nemisebenzi yokuphatha idatha ye-Unicode.

1. I-ICU Library: Izingxenye Zamazwe Ngamazwe ze-Unicode (ICU) iwumtapo wezincwadi ovuthiwe, onamandla futhi osetshenziswa kabanzi ukuphatha i-Unicode kanye nokwenza amazwe ngamazwe (i18n).

2. Thuthukisa umtapo wolwazi: Ilabhulali ye-C++ edume kakhulu, i-Boost nayo inezinsiza ezithile zokuphatha i-Unicode.

3. Ilabhulali Ejwayelekile: Umtapo wezincwadi ojwayelekile we-C++ futhi unikeza indlela elinganiselwe yokusingatha ukuguqulwa kombhalo wekhodi we-Unicode usebenzisa futhi imitapo yolwazi (njenge-'codecvt_utf8_utf16' eboniswe ngenhla).

Ukusebenza ne-Unicode kuhlanganisa izimo ezahlukahlukene zedijithali kufaka phakathi i-SEO. Ukusetshenziswa okufanele kuvumela ukusebenza okungenamthungo kwesoftware yamazwe ngamazwe. I-Unicode ayiseyona into enganakwa abathuthukisi; ngezilimi eziningi zomhlaba ezidlangile emhlabeni wedijithali, kuyisidingo.

Qaphela ukuthi, lesi isingeniso esifushane nje. Ububanzi obugcwele be-Unicode buhlanganisa ukuqonda izinto eziyinkimbinkimbi ezifana ne-Unicode Normalization, Grapheme Clusters njll. Njengoba kuyinkimbinkimbi, ukufunda okuqhubekayo nokuzilolonga ngekhodi kuwukhiye wokufunda kahle i-Unicode.

Okuthunyelwe okuhlobene:

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