Represent text as a series of unicode characters in connection string



String each time) has the following characteristics: It is a reference type It's a common misconception that string is a value type. CompID ' ' Decoded bytes: ' This Unicode string has 2 characters outside the ASCII range: ' Pi (π), and Sigma (Σ). Hence the maximum of 256 characters can be represented by such an UTF-32 is an encoding scheme for Unicode that employs four bytes to represent every code point defined by Unicode. Converting from Unicode to a byte string is called encoding the string. There’s a fair amount of information in the error: it’s giving you the character that it’s having problems with, what position it was at in the string, and (in the case of ASCII) it’s telling you that Unicode strings, on the other hand, correspond to sequences of Unicode characters, and — contrary to popular belief — Unicode is not an encoding; sequences of Unicode characters, by themselves, don’t translate into any particular set of bytes you could send over a network connection, for example. Valid Unicode characters can range up to 0x10ffff. A character is a Unicode code point. In other words, given a string of length 1, the ord() function returns an integer representing the Unicode code point of the character when an argument is a Unicode object, or the value of the byte when the argument is an 8 The 'encoding' argument of connections has been changed from a numeric vector to a character string naming an encoding that iconv knows about, and re-encoding on the fly can now be done on both input and output. "S" "String" "This is a string. A char instance represents a 16-bit code unit. The main use of String class is to provide the properties and methods so that it becomes easy to work with strings. 14159", or even contain special characters like backspace, newline, '♥' or even a system beep. String class for strings. If you do have a nifty editor that handles Unicode, or other character encodings, you can write your Frink program in full Unicode, and load it using the This function accepts a string of unit length as an argument and returns the Unicode equivalence of the passed argument. Input and output characters are translated from and to the system's native encoding automatically (with this being able to be overridden on a per file-handle basis via fconfigure -encoding ). " C# provides the String data type to store string literals. This is best seen with Unicode. Last modified: August 16, 2021. The number type can represent both whole numbers . See details of the string type. The encoding forms that can be used with Unicode are called UTF-8, UTF-16, and UTF-32. Remarks. One such encoding scheme is UTF-8. (Not all of these Unicode code points have been assigned characters yet, but that doesn’t stop UTF-8 from being able to encode them. UTF-7 supports protocols such as email and newsgroup. This means that all unicode characters are allowed in both of these. In the examples, the → character is used to represent tabs. That’s 1,114,112 possible symbols. Range Decimal Name; 0x0000-0x007F: 0-127: Basic Latin 0x0080-0x00FF: 128-255: Latin-1 Supplement 0x0100-0x017F: 256-383: Latin Extended-A 0x0180-0x024F: 384-591 Emoji. Each Unicode character is encoded into a 4-digit hex-value. " Thud! In UTF-8 a character is not the same as a byte! Unicode's design goal is to be the universal character set for all applications. u0005. 0420 and column D. Excel Details: Excel Details: This is a list of characters with Unicode code-points; there are 143,859 characters, with Unicode 13. In Unicode, each logical character is represented by a 32-bit integer, giving a total 65535 characters that can represented. » Conversion of Primitive Types For STRING arguments, returns the original string with all alphabetic characters in lowercase. Unicode is a widely adopted system for representing characters for all languages examples require four bytes in memory and return a string length of 2. 0, covering 154 modern and historical scripts, as well as multiple symbol sets. 2017 Try this instead: string[] dankMemes; public MyBot() { dankMemes = new string[] { "dm/1. Each Unicode character has its own number and HTML-code. only assignment call increment decrement and new object expressions can be used as a statement. This is where character encodings come into the picture. Example: String Literals. This is Python telling you that it encountered a character in the Unicode string which it can’t represent in the requested encoding. Text processes  PSQL recognizes the Unicode character set, providing support for Also, set pvtranslate=auto in the connection string and set the database code page. First, we need to create a UTF-8 encoded text file with some special characters. The Unicode Consortium has continued to evaluate new characters, and the current number of supported characters is over 95,000. Based on the English alphabet, ASCII is a character-encoding scheme. When you declare a column of type  A Unicode string value that is a collection of characters. 1. UTF-8 uses 1 byte to represent characters in the ASCII set, two bytes for characters in several more alphabetic blocks, and three bytes for the rest of the BMP. ora. , the string "ue" stands for the Unicode character [] LATIN SMALL LETTER U WITH DIAERESIS, U+00FC). Thus, the Console’s text buffer contains 2-byte wchar_t values per grid cell, x columns by y rows in size. In order to accomplish this, the text is saved using one of several types of character encoding. Section break ^w. Characters from the European scripts are represented in either 1 or 2 bytes  SQL CHAR and NCHAR data can be mixed together when using multiple string Data loss may occur if the database character set is not Unicode. Encoding is the process of transforming a set of Unicode characters into a sequence of bytes. As it is not technically possible to list all of these characters in a single Wikipedia page, this list is limited to a subset of the most important excel unicode Here is a string of six exotic Unicode characters. "Wide character" or "wide character string" refers to text where each character is the same size (usually a 32-bit integer) and simply represents a Unicode character value ("code point"). 442 Posts. A conversion function converts one data type or format to another data type or format. bool values can be used in conditional logic. Non-ASCII Unicode characters are represented by an escape sequence of ASCII characters. Version: 2021. The String type bridges with the Objective-C class NSString and offers interoperability with C functions that works with strings. libunistring is for you if your application involves non-trivial text processing, Both allow to represent any Unicode character as a sequence of bytes. Every character has an unambiguous full name which is always in uppercase ASCII. 06-May-2009 Both represents the same Unicode character though: xFFFD, you have to use a font which supports a broad range of Unicode characters. The goal entails the inclusion of very large numbers of characters. When the Java program source file encoding doesn’t support Unicode, you can represent Unicode characters as escape sequences by using the notation \u XXXX , where XXXX is the character’s 16-bit representation in hexadecimal. If you use a more restrictive encoding – for example, latin1 (iso8859-1) – you won’t be able to store certain characters in the database, and information will be lost. The other, unicode, was (as the name implies) a Unicode string type. The Unicode 4. Although some code points (for example, combining accents) do not correspond to characters in an intuitive sense, all code points count as Learn More about Unicode. 1 Emoji Characters. Or paste it to the search string. In some cases, changing one bit can radically alter the interpretation of an entire UTF-7 ED-2. As of Mako 1. 22-Dec-2020 Unicode is a standard to represent text while UTF-16 is a way to encode Unit is a bit sequence used to encode a character (Code Point)  JavaScript supports Unicode characters using hex escape sequences. g. In other words, it's a list of special codes that represent nearly every character in any language! A string can also be a series of numbers such as "3. Unicode characters table. Represents characters as sequences of 7-bit ASCII characters. Unicode: shiny new character encoding. series of characters. GetString(b) where s = string and b = array of bytes Now the data would contain Unicode characters. Thus it did not represent any particular encoding (or did it? To quote the PHP manual about the string data type, "A string is series of characters, where a character is the same as a byte. Obviously, it is space inefficient to use four bytes for every character. jpg" }; }. Character Encoding: While we view text documents as lines of text, computers actually see them as binary data, or a series of ones and zeros. Emoji are the base for text-driven conversations these days. The ASCII code takes each character on the keyboard and Unicode characters table. doc" Console. . System. number: a numeric value. In many cases, the To quote the PHP manual about the string data type, "A string is series of characters, where a character is the same as a byte. Early character codes associated with the optical or electrical telegraph could only represent a subset of the characters used in written languages In C#, a string is a series of characters that is used to represent text. Posted - 2011-09-27 : 09:59:17. network sockets. Strings in Swift are Unicode correct and locale insensitive, and are designed to be efficient. String indexes are zero-based: The first character is in position 0, the second in 1, and so on. If we think about 8-bit fixed-width encoding, we have only 8 bits to represent a character. length — a tale of characters in Unicode. One code we can use for this is called ASCII . Ok, I get it, the question is confusing. One Unicode character can be 1 byte, 2 bytes, 3 bytes, or 4 bytes in UTF-8 encoding. U+ : represents the beggining of the char series. Similarly, when you load Unicode strings from a file, socket, or other byte-oriented object, you need to decode the strings from bytes to characters. This allows UTF-8 to be backward compatible with 7-bit ASCII, as a UTF-8 file containing only ASCII characters is identical to an ASCII file containing the same sequence of characters. NET uses UTF-16 to encode the text in a string. Java provides a built-in String class to manipulate these Unicode characters. The UTF-8 encoding can represent every symbol in the Unicode character set, which ranges from U+000000 to U+10FFFF. Unicode. ASCII was incorporated into the Unicode (1991) character set as the first 128 symbols, so the 7-bit ASCII characters have the same numeric codes in both sets. ora file without the need to actually have one of these files on the client pc. White space (space, nonbreaking space, tab) ^unnnn. Note that •(1) this does not work in PDFlatex, it's explicitly mentioned in the TeXBook that "AB only work for at most 2 hexadecimal characters, and •(2) in most case it's possible to simply type out the Unicode character directly (⌀ instead of \char"2300 and it will work), •(3) If the character is not available in the font, it will be The solution to this dilemma is Unicode. In Python 2, two types could be used to represent strings. Without these tiny little symbols, a lot of chat conversations today would end in awkward situations and misunderstandings. Therefore, the characters within a text document must be represented by numeric codes. Note that this does not apply to the 'terminal' connections nor text connections, but does to all file-like connections. Working with SSIS and UTF-8 Unicode Data. This MySQL Connector/Net connection string can be used for connections to MySQL. Note. 2 Preliminaries 2. u0003. Unicode Consortium and UTF encodings. This gives us an opportunity to perform some bit-level The solution to this dilemma is Unicode. I still remember the old days when SMS were a thing. ED-3. Conversion functions can be used with String and Number data types. character) strings. Terminology A number of terms used here are explained in [] and []. Several examples use the "XML Notation" from the Internationalized Resource Identifier (IRI) specification [] to represent Unicode characters outside the ASCII range (e. Represents a fixed length character string in UNICODE. Character encodings. In other words, given a string of length 1, the ord() function returns an integer representing the Unicode code point of the character when an argument is a Unicode object, or the value of the byte when the argument is an 8 Any single character ^# Any digit ^$ Any letter ^u8195. Decoding is the process of transforming a sequence of encoded bytes into a set of Unicode characters. Mapping between lowercase and uppercase is done according to the Unicode Character Database without taking into account language-specific mappings. 0 defines supplementary characters to meet this need. " Console. A single 16-bit code unit can represent any code point in the 16-bit range of the Basic Multilingual Plane. A major strength of the Unicode Stan-dard is the number of other important standards that it incorporates. We will use the method convertToBinary introduced earlier: Problems with other uses: The separator characters can also problematic when used in plain text, because legacy data is usually converted code point for code point into Unicode and all receivers of Unicode plain text have to effectively be able to interpret the existing use of control codes for this purpose. Enough of the theory and background; let us put this knowledge into practice. CompID String Class Represents text as a series of Unicode characters. There are many ways of Each Unicode character has its own number and HTML-code. CompAlloc) AS NOV, CompAlloc. Unicode character symbols table with escape sequences & HTML codes. emoji character — A character that has the Emoji property. Enter Unicode escape characters in the string value for a dynamic or input text field variable. However, UTF-7 is not particularly secure or robust. This simple aim becomes complicated Here is a string of six exotic Unicode characters. This function accepts a string of unit length as an argument and returns the Unicode equivalence of the passed argument. Em space Unicode character value search ^u8194. To properly represent a character above 0xffff in a JSON string, we follow some complicated rules to split it into two. e. ) UTF-8 is the most widely used way to represent Unicode text in web pages, and you should always use UTF-8 when creating your web pages and databases. "Character set", "character map", "codeset" and " code page " are related, but not identical, terms. This is another type of Oracle connection string that doesn't rely on you to have a DSN for the connection. With applications in computers and other devices that use text, ASCII codes represent text. Net System. Unicode defines a standardized, universal character set that can be extended to accommodate additions. , (See PDF for non-ASCII character string)) is encouraged so that a reader can more easily see what the character is, if their device can render the text. Mako 1. A JavaScript string stores a series of characters like "John Doe". The hexadecimal values for the word "to" and a space character appear on line 21 and the word "Unicode" is on line 23. Input: test_str = ‘gfg’ Output: \u0067\u0066\u0067 Explanation: Result changed to unicoded string. Encoding. emoticon — (1) A series of text characters (typically punctuation or symbols) that is meant to represent a facial expression or gesture such as ;-) and (2) in a broader sense, also includes emoji for facial expressions and gestures. o Use of the actual UTF-8 character (e. As of version 1. Create an embedded font as a symbol in your Library. Excel Unicode List. " Thanks! In other words, it was necessary for Unicode characters that are also in ASCII to be encoded exactly as they would be in ASCII using code units 0x00 to 0x7F, and that those code units should never be used in the representation of any other characters. The design of the character dard default mechanism for comparing Unicode strings. Availability Each element of a string is represented by a Character instance. String Represents text as a series of Unicode characters. Supplementary characters use 4 bytes. 4. 3 Converting to a Sequence of Unicode Code Points two s letters in German do not necessarily represent ß in unfolded text. ) This allows Unicode characters to be placed into any ASCII text file, and edited by programs that don't understand Unicode. Example: Cyrillic capital letter Э has number U+042D (042D – it is hexadecimal number), code ъ. In other words, Unicode represents a character in an abstract way and leaves the visual rendering (size, shape, font, or style) to other software, such as a web browser or word processor. cmd4. 2021 3. Unicode was originally designed as a fixed-width, uniform two-byte designation that could represent all modern scripts without the use of code pages. Only assignment, call, increment, decrement, and new object expressions can be used as a statement. CommandText = ("SELECT COUNT (Complaints. En space Unicode character value search ^b. 3, the default template encoding is utf-8. Unicode is an entirely new idea in setting up binary codes for text or script characters. GetBytes(s) s = Text. The following are string literals. The Unicode standard is an attempt to create a character table large enough for anything anyone might conceivably want to write; it contains characters for all the major European, Asian and African scripts, relative rarities like Canadian Aboriginal Syllabics, technical alphabets like the IPA, and even things like Linear B, the Phaistos Disk, and Omiting tnsnames. You can then represent them on the screen by outputting them using methods used in your own framework. Swift’s String and Character types provide a fast, Unicode-compliant way to work with text in your code. This sample shows how to put your text completely into the operation system or database which does not support the text's character set. Conversion Functions. Topic. The full message is: class. Unicode strings, on the other hand, correspond to sequences of Unicode characters, and — contrary to popular belief — Unicode is not an encoding; sequences of Unicode characters, by themselves, don’t translate into any particular set of bytes you could send over a network connection, for example. Each character is a Unicode character in the range U+0000 to U+FFFF (more on that later). (3) “UCS Transformation Format 8,” defined in Annex D of ISO/IEC 10646:2003 A string is basically a sequence of characters. Unity uses the . u0002. 1 Data Structures for Character Conversion The Unicode Standard exists in a world of other text and character encoding standards— some private, some national, some international. You create a connection string based on the format used in the tnsnames. Stream-Safe Text Format: A Unicode string is said to be in Stream-Safe Text Format if it would not contain any sequences of non-starters longer than 30 characters in length when normalized to NFKD. A string can be any text inside double or single quotes: let carName1 = "Volvo XC60"; let carName2 = 'Volvo XC60'; Try it Yourself ». One of them, str, was a “byte string” type; it represented a sequence of bytes in some particular text encoding, and defaulted to ASCII. In Python 2, the two types are string and unicode Unicode 4. (2) The UTF-8 encoding scheme. Unicode  14-Nov-2016 Characters represent letters of the alphabet, punctuation, Unicode character is to be expressed as a sequence of one or more code units. I need to get the . class system. The entire environment is Unicode based and whether you write Web applications or Windows Forms applications an application is automatically Unicode enabled and can handle the display of any character set that Windows Console was created way back in the early days of Windows, back before Unicode itself existed! Back then, a decision was made to represent each text character as a fixed-length 16-bit value (UCS-2). The Unicode Chapter ¶. He's not asking "how do I convert a string representation", he's asking "how do I convert a BYTE representation" Hex is just a string-y way of representing bytes (along with base64, etc). In text processing, Unicode takes the role of providing a unique code point—a number, not a glyph—for each character. More technically: (1) The UTF-8 encoding form. VARCHAR holds Unicode characters. NET is a Unicode string and there’s no way to create a string any other way – at least not as type String. Normally, this means giving it an encoding of UTF-8 or UTF-16. " Thud! In UTF-8 a character is not the same as a byte! Character Encoding: While we view text documents as lines of text, computers actually see them as binary data, or a series of ones and zeros. Swift strings are represented by the String type. If you want to know number of some Unicode symbol, you may found it in a table. You can also encode the data back and store in the file, you can convert the string to a byte array and store all the bytes to the file. It can be a character, a word or a long passage surrounded with the double quotes ". A string is a series of characters, such as "hello, world" or "albatross". The String data type in . u0004. In a table, letter Э located at intersection line no. The WString and V_WString data types support multi-byte Unicode characters. Constraint Violating Yak Guru. 16-bit Unicode Transformation Format is a character encoding system that uses 16-bit code units to represent Unicode code points. There's a wrinkle: the four-digit encoding that smallHex provides can only represent Unicode characters up to 0xffff. Such a string can be normalized in buffered serialization with a buffer size of 32 characters, which would require no more than 128 bytes in any A multibyte encoding for text that represents each Unicode character with 1 to 4 bytes, and which is backward-compatible with ASCII. qman. There are update versions of the text of the Unicode Standard and of the A single code point representing a sequence of three characters encoded as  the characters used to represent those text elements. This string is designed to look like the word "Python", but doesn't use any ASCII characters at all. For BYTES arguments, the argument is treated as ASCII text, with all bytes greater than 127 left intact. (Only ASCII characters are encoded with a single byte in UTF-8. This string is designed to look like the word “Python”, but doesn’t use any ASCII characters at all. I am getting a "represents text as a series of unicode characters" message when I attempt to assign "S:\aa\bb\abc_" as value to my strFilename variable. This allows Unicode to represent all the ASCII codes, the characters of other languages, and leaves plenty of room for expansion. Snowflake supports the following data types for text (i. CompAlloc, CompAlloc. Net string, in this case we want to get 4 Chinese letters: 駿威汽車 There is "the normal way" to use otomatic parsing of string: string st = "\u99ff\u5a01\u6c7d\u8eca"; (and we get st = 駿威汽車) but it is good just for copiler time and not for run time. It also allows any Unicode character to be used in an identifier. Use a conversion function to convert numbers to strings or strings to numbers. Mouse click on character to get code: u0001. Let's see how a simple character like ‘T' is represented in UTF-32. A string is a series of characters, such as "Swift", that forms a collection. At that point, you must choose how to represent the characters as bytes. The contents of a String can be accessed in various ways, including as a collection of Character values. This enables an additional 1,048,576 characters to be defined. 21-Feb-2019 Your first brush with Python Unicode strings may happen when reading a text file and you get an encoding error, or the characters do not  23-Mar-2020 ASCII uses only one byte to represent each character. As you can see from the screen prints below, most of the rows contain one or several special characters. 25 mar. As a result, fewer Unicode A character set is a list of characters whereas an encoding scheme is how they are represented in binary. 0 standard defines 45,960 supplementary characters. Unicode code points are written as 4-, 5-, or 6-digits of hex with a U+ prefix. All characters in Tcl are always Unicode characters, with ordinary string operations (as listed elsewhere on Rosetta Code) always performed on Unicode. Byte Order Mark (BOM) Make sure your database is configured to be able to store arbitrary string data. But, in principle, UTF-8 is only one of the possible ways of encoding Unicode characters. Author. A character encoding is used in computation, data storage, and transmission of textual data. 3. jpeg", "dm/2. NET base class library. WriteLine (string2) End Sub End Class. 1 Characters and lines Any sequence of characters is a valid CommonMark document. ASCII is short for American Standard Code for Information Interchange. Now that we know what is unicode and how each alphabet in the world is assigned to a unique code point, we need a way to represent these code points in the computer's memory. 05 which does not support UTF-8, GB2312 and other character sets. 5. The number type can represent both whole numbers like 15 and fractional values such as 6. Represents text as a series of Unicode characters. Background In web application development, frequently I have to connect each kind of old database and OS from customers such as SCO5. WriteLine (string1) Dim string2 As String = "The path is C:\PublicDocuments\Report1. These are not to be confused with the different representations of the characters that different fonts can provide, including different language fonts like the symbol font. 5, JLex uses the JDK 1. Trying to convert a UTF-8 string that contains characters that can't be represented in ISO-8859-1 to ISO-8859-1 will garble your text and/or cause  21-Feb-2021 You see this text as a sequence of characters rendered by your Python used the UCS-2 encoding to represent Unicode strings internally. There’s a fair amount of information in the error: it’s giving you the character that it’s having problems with, what position it was at in the string, and (in the case of ASCII) it’s telling you that Unicode characters in C# use the format uyyyy, where yyyy represents the hexadecimal Unicode encoding. A code where each number represents a character can be used to convert text into binary. o The use of the Unicode character names like "INCREMENT" in addition to the use of Unicode code points is also encouraged. It is also focused on written language in general; special provisions have always been needed for identifiers. The string type (I'll use the C# shorthand rather than putting System. 1 Reader and Writer classes to read in the JLex specification file and write out the lexical analyzer source file. Thus it did not represent any particular encoding (or did it? Unicode's design goal is to be the universal character set for all applications. For Unicode-encoded text to appear correctly, users must have access to fonts containing the glyphs (characters) used in that text. Officially called the Unicode Worldwide Character Standard, it is a system for "the interchange, processing, and display of the written texts of the diverse languages of the modern world. prototype. Look below. This format is a known common currency that allows you to get at character values if you want to. ASCII was originally developed from telegraphic codes. The character set support in PostgreSQL allows you to store text in a variety of including single-byte character sets such as the ISO 8859 series and  Now, there's so many character sets but just for the default old school 128 characters that we could represent with ASCII, the uppercase letters had a lower  04-Jun-2020 In this case, it will be possible to store fewer characters as MySQL is using one additional byte to represent each character, from 3 to 4 bytes  string : a sequence of Unicode characters representing some text, like "hello" . This means that PHP only supports a 256-character set, and hence does not offer native Unicode support. file naming conventions, different ways of representing text lines, and so on. Class Program Shared Sub Main () Dim string1 As String = "This is a string created by assignment. UTF-8 is the predominant form of Unicode in web pages. 10-Mar-2012 To represent text, we've been using the ASCII code for nearly 50 years. 283185. 11 ago. It uses two 16-bit code points (also known as supplementary characters) to represent a single character. See the Microsoft MSDN documentation for Strings for  Represents 64-bit signed integers, in the range of 2^63+1 to 2^63-1. Given a String, convert its characters to unicode characters. UTF-8 uses byte sequences of one to four bytes to represent the entire Unicode codespace. Use this one to specify which character set to use to encode queries sent  A string is a sequence of bytes or characters, enclosed within either single quote ( ' ) or double Escape Sequence, Character Represented by Sequence  Character encoding. Make this object represent the range start - end . The result is a string of text that might be familiar to those users who previously had their clients set to operate under the Latin-1 character map (since Latin-1 shares its character set with the first 256 Unicode code points), though still presumably indecipherable. Adopt a Character ’ U+2019 સ U+0AB8 シ U+30B7 ڡ U+06A1 U+1F534 Adopt a Character to Celebrate World Emoji Day Jul 12, 2021. A string is a sequence of bytes or characters, enclosed within either single quote ( ' ) or double Escape Sequence, Character Represented by Sequence  The basic format of a connection string includes a series of keyword/value that the data provider uses Unicode UTF-16 encoding to represent characters. text. SSIS and Import/Export (2008) represents text as a series of unicode characters. CustName) AS Detail FROM Complaints LEFT OUTER JOIN SELECT COUNT (CompAlloc. " Thanks! RFC 7247 SIP-XMPP Interworking: Core May 2014 3. jpg", "dm/4. Word 2000 Unicode character search, where "n" is a decimal number corresponding to the Unicode character value Input text to convert to these ASCII numbers. I only copied the piece of code that I have problem with. " Since each Unicode character is 16 bits (opposed to the usual 7 or 8 bit), and many characters are not displayable or possible to enter on many computers, the message must be hex-coded. Unicode is a standard character encoding that includes the symbols of almost every written language in the world. VARCHAR¶. JavaScript Strings. String Object: =, Is and Mid. So, b = Text. jpg", "dm/3. string represents text as a series of unicode characters. 24-Feb-2021 A mutable set of Unicode characters and multicharacter strings. number : a numeric value. String class represents the text as a series of Unicode characters and it is defined in the . 2. Before we can analyze a text in R, we first need to get its digital representation, a sequence of ones and zeros. Example: Unicode letter A has the value of 0x0041 and is written as “0041”. The string is an array of characters. The encoding schemes UTF-8, UTF-16 and UTF-32 use the Unicode character set but encode the characters differently. this chapter was written many years ago and is very Python-2 centric. For example, the letter "W" (in "Welcome") is denoted by u0057. The Python language supports two ways of representing what we know as “strings”, i. ASCII is a character set and encoding scheme. 4 Documentation. UTF-8 encoding is a variable sized encoding scheme to represent unicode code Unicode characters in C# use the format uyyyy, where yyyy represents the hexadecimal Unicode encoding. string: a sequence of Unicode characters representing some text, such as "hello". Escape Unicode characters Another important topic that you need to know about in connection with escape characters is Unicode. Now the data would contain Unicode characters. 1. Here is a string of six exotic Unicode characters. bool: either true or false.