encoding

问题 I have string which fill up by data from other program and this data can be with UTF8 encoding or not. So if not i can encode to UTF8 but what is the best way to detect UTF8 in the C++? I saw this variant https://stackoverflow.com/questions/... but there are comments which said that this solutions give not 100% detection. So if i do encoding to UTF8 string which already contain UTF8 data then i write wrong text to database. So can i just use this UTF8 detection : bool is_utf8(const char *

问题 I have string which fill up by data from other program and this data can be with UTF8 encoding or not. So if not i can encode to UTF8 but what is the best way to detect UTF8 in the C++? I saw this variant https://stackoverflow.com/questions/... but there are comments which said that this solutions give not 100% detection. So if i do encoding to UTF8 string which already contain UTF8 data then i write wrong text to database. So can i just use this UTF8 detection : bool is_utf8(const char *

问题 I am trying to build a ML model. However I am having difficulties in understanding where to apply the encoding. Please see below the steps and functions to replicate the process I have been following. First I split the dataset into train and test: # Import the resampling package from sklearn.naive_bayes import MultinomialNB import string from nltk.corpus import stopwords import re from sklearn.model_selection import train_test_split from sklearn.feature_extraction.text import CountVectorizer

问题 I was using old kafka where i was using piece of code below where mEncoding could be utf-7, utf-8, unicode etc. new Consumer<Ignore, string>(mConfig, null, new StringDeserializer(mEncoding))) I am upgrading my kafka to 1.4.0 version. I found that Consumer is replaced by ConsumerBuilder where method SetValueDeserializer is available, but its accepting only utf-8 (Deserializers.Utf8). Is there any way i can send other encoding also? 回答1: You should just implement your own deserializer. It could

问题 I have a sting in UTF8: "Red🌹🌹Röses" I need that to be converted to valid UCS-2(or fixed size UTF-16BE without BOM, they are the same things) encoding, so the output will be: "Red Röses" as the "🌹" out of range of UCS-2. What I have tried: @Test public void testEncodeProblem() throws CharacterCodingException { String in = "Red\uD83C\uDF39\uD83C\uDF39Röses"; ByteBuffer input = ByteBuffer.wrap(in.getBytes()); CharsetDecoder utf8Decoder = StandardCharsets.UTF_16BE.newDecoder(); utf8Decoder

问题 I did successfully connected MySQL database with pyodbc, and it works well with ascii encoded data, but when I print data encoded with unicode(utf8), it raised error: UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-8: ordinal not in range(128) So I checked the string in the row: >>>row[3] '\xe7\xae\xa1\xe7\x90\u2020\xe5\u2018\u02dc' I found instructions about unicode in pyodbc github wiki These databases tend to use a single encoding and do not differentiate between

问题 I found an interesting article "A tutorial on character code issues" (http://jkorpela.fi/chars.html#code) which explains the terms "character code"/"code point" and "character encoding". The former is just an integer number which is assigned to an character. For example 65 to character A. The character encoding defines how such an code point is represented via one ore more bytes. For the good old ASCII the autor says: "The character encoding specified by the ASCII standard is very simple, and

问题 I'm getting UnicodeEncodeError: 'charmap' codec can't encode character '\u200b' in position 756: character maps to error while running this code:: from bs4 import BeautifulSoup import requests r = requests.get('https://stackoverflow.com').text soup = BeautifulSoup(r, 'lxml') print(soup.prettify()) and the output is: Traceback (most recent call last): File "c:\Users\Asus\Documents\Hello World\Web Scraping\st.py", line 5, in <module> print(soup.prettify()) File "C:\Users\Asus\AppData\Local

问题 What is an example of a character encoding which is not compatible with ASCII and why isn't it? Also, what are other encoding which have upward compatibility with ASCII (except UTF and ISO8859, which I already know) and for what reason? 回答1: There are EBCDIC-based encodings that are not compatible with ASCII. For example, I recently encountered an email that was encoded using CP1026 , aka EBCDIC 1026. If you look at its character table, letters and numbers are encoded at very different

问题 What is an example of a character encoding which is not compatible with ASCII and why isn't it? Also, what are other encoding which have upward compatibility with ASCII (except UTF and ISO8859, which I already know) and for what reason? 回答1: There are EBCDIC-based encodings that are not compatible with ASCII. For example, I recently encountered an email that was encoded using CP1026 , aka EBCDIC 1026. If you look at its character table, letters and numbers are encoded at very different