C. 什么 图书馆有用于探测特性阵列(char*)的多维特性编码(UTF-8、UTF-16等)。 如果配对人停下来,即检测到prefix>/em>与一套可能的编码相匹配。
ICU确实character settec。 你们必须指出,正如伊斯兰法院联盟的文件指出:
This is, at best, an imprecise operation using statistics and heuristics. Because of this, detection works best if you supply at least a few hundred bytes of character data that s mostly in a single language.
If the input is only ASCII, there s no way to detect what should be hone had there been any high-bit-set bytes in the stream. May as well just pick UTF-8 in that case.
至于UTF-8诉ISO-8859-x,如果 par子失败,你可以尝试将投入作为UTF-8,然后回到ISO-8859。 确实没有检测的ISO-8859变量。 我建议研究一下航天飞机的运作方式,但这种方式并非无能为力,可能取决于是否知道输入是超文本。
总的说来,除了案文有某些特别标志说明编码外,还不可能发现编码的性质。 您可以直观地通过字典来检测一种编码,这些字体中仅存在于一些编码中。
This can of course only be a heuristic and you need to scan the whole text.
Example: "an English text can be written in multiple encodings". This sentence can be written for example using a German codepage. It s indistinguishable from most "western" encodings (including UTF-8) unless you add some special characters (like ä) that are not present in ASCII.
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