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The byte-order mark (BOM) is a particular usage of the special Unicode character code, U+FEFF ZERO WIDTH NO-BREAK SPACE, whose appearance as a magic number at the start of a text stream can signal several things to a program reading the text: [1] the byte order, or endianness, of the text stream in the cases of 16-bit and 32-bit encodings;
This prepends a UTF-8 byte order mark which avoids the bug. [citation needed] UTF-8 without the byte order mark would still trigger the bug, as it is identical to the "ANSI" file. Saving as "Unicode", which in Microsoft Windows means UTF-16LE. When loading this text IsTextUnicode should (and does) return true and the text is correct.
This may be achieved by using a byte-order mark at the start of the text or assuming big-endian (RFC 2781). UTF-8, UTF-16BE, UTF-32BE, UTF-16LE and UTF-32LE are standardised on a single byte order and do not have this problem. If the byte stream is subject to corruption then some encodings recover better than others. UTF-8 and UTF-EBCDIC are ...
Before Windows 10, Notepad always inserted a byte order mark character at the start of the file. Since Windows 10, the BOM has been optional. Starting with Windows 10 1809 Insider build, it supports Unix-style (LF) and Classic Mac OS -style (CR) line endings, along with the native DOS/Windows CRLF style. Before this, only CRLF line endings were ...
UTF-8 byte order mark, commonly seen in text files. [28] [29] [30] FF FE: ÿþ: 0 txt others: UTF-16LE byte order mark, commonly seen in text files. [28] [29] [30] FE FF: þÿ: 0 txt others: UTF-16BE byte order mark, commonly seen in text files. [28] [29] [30] FF FE 00 00: ÿþ␀␀ 0 txt others: UTF-32LE byte order mark for text [28] [30] 00 ...
Notepad++ (sometimes npp or NPP), is a text and source code editor for use with Microsoft Windows. It supports tabbed editing, which allows working with multiple open files in one window. The program's name comes from the C postfix increment operator .
Many standards only support UTF-8, e.g. JSON exchange requires it (without a byte-order mark (BOM)). [30] UTF-8 is also the recommendation from the WHATWG for HTML and DOM specifications, and stating "UTF-8 encoding is the most appropriate encoding for interchange of Unicode " [ 4 ] and the Internet Mail Consortium recommends that all e‑mail ...
A Unicode character is assigned a unique Name (na). [1] The name is composed of uppercase letters A–Z, digits 0–9, hyphen-minus and space.Some sequences are excluded: names beginning with a space or hyphen, names ending with a space or hyphen, repeated spaces or hyphens, and space after hyphen are not allowed.