byte-order-mark

How Can I Best Guess the Encoding when the BOM (Byte Order Mark) is Missing?

由 那年仲夏 提交于 2019-11-26 10:29:21
问题 My program has to read files that use various encodings. They may be ANSI, UTF-8 or UTF-16 (big or little endian). When the BOM (Byte Order Mark) is there, I have no problem. I know if the file is UTF-8 or UTF-16 BE or LE. I wanted to assume when there was no BOM that the file was ANSI. But I have found that the files I am dealing with often are missing their BOM. Therefore no BOM may mean that the file is ANSI, UTF-8, UTF-16 BE or LE. When the file has no BOM, what would be the best way to

How to GetBytes() in C# with UTF8 encoding with BOM?

由 一世执手 提交于 2019-11-26 09:28:14
问题 I\'m having a problem with UTF8 encoding in my asp.net mvc 2 application in C#. I\'m trying let user download a simple text file from a string. I am trying to get bytes array with the following line: var x = Encoding.UTF8.GetBytes(csvString); but when I return it for download using: return File(x, ..., ...); I get a file which is without BOM so I don\'t get Croatian characters shown up correctly. This is because my bytes array does not include BOM after encoding. I triend inserting those

Adding UTF-8 BOM to string/Blob

由 ぃ、小莉子 提交于 2019-11-26 09:27:56
问题 I need to add a UTF-8 byte-order-mark to generated text data on client side. How do I do that? Using new Blob([\'\\xEF\\xBB\\xBF\' + content]) yields \'\"my data\"\' , of course. Neither did \'\\uBBEF\\x22BF\' work (with \'\\x22\' == \'\"\' being the next character in content ). Is it possible to prepend the UTF-8 BOM in JavaScript to a generated text? Yes, I really do need the UTF-8 BOM in this case. 回答1: Prepend \ufeff to the string. See http://msdn.microsoft.com/en-us/library/ie

Encoding.UTF8.GetString doesn't take into account the Preamble/BOM

由 邮差的信 提交于 2019-11-26 09:11:04
问题 In .NET, I\'m trying to use Encoding.UTF8.GetString method, which takes a byte array and converts it to a string . It looks like this method ignores the BOM (Byte Order Mark), which might be a part of a legitimate binary representation of a UTF8 string, and takes it as a character. I know I can use a TextReader to digest the BOM as needed, but I thought that the GetString method should be some kind of a macro that makes our code shorter. Am I missing something? Is this like so intentionally?

How to avoid tripping over UTF-8 BOM when reading files

由 ε祈祈猫儿з 提交于 2019-11-26 09:01:41
问题 I\'m consuming a data feed that has recently added a Unicode BOM header (U+FEFF), and my rake task is now messed up by it. I can skip the first 3 bytes with file.gets[3..-1] but is there a more elegant way to read files in Ruby which can handle this correctly, whether a BOM is present or not? 回答1: With ruby 1.9.2 you can use the mode r:bom|utf-8 text_without_bom = nil #define the variable outside the block to keep the data File.open('file.txt', "r:bom|utf-8"){|file| text_without_bom = file

Convert UTF-8 with BOM to UTF-8 with no BOM in Python

由 拥有回忆 提交于 2019-11-26 08:50:55
问题 Two questions here. I have a set of files which are usually UTF-8 with BOM. I\'d like to convert them (ideally in place) to UTF-8 with no BOM. It seems like codecs.StreamRecoder(stream, encode, decode, Reader, Writer, errors) would handle this. But I don\'t really see any good examples on usage. Would this be the best way to handle this? source files: Tue Jan 17$ file brh-m-157.json brh-m-157.json: UTF-8 Unicode (with BOM) text Also, it would be ideal if we could handle different input

How to detect the character encoding of a text file?

由 荒凉一梦 提交于 2019-11-26 06:41:15
I try to detect which character encoding is used in my file. I try with this code to get the standard encoding public static Encoding GetFileEncoding(string srcFile) { // *** Use Default of Encoding.Default (Ansi CodePage) Encoding enc = Encoding.Default; // *** Detect byte order mark if any - otherwise assume default byte[] buffer = new byte[5]; FileStream file = new FileStream(srcFile, FileMode.Open); file.Read(buffer, 0, 5); file.Close(); if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf) enc = Encoding.UTF8; else if (buffer[0] == 0xfe && buffer[1] == 0xff) enc = Encoding

How do I remove the BOM character from my xml file [duplicate]

由 心不动则不痛 提交于 2019-11-26 06:26:40
问题 This question already has answers here : XML - Data At Root Level is Invalid (2 answers) Closed 6 years ago . I am using xsl to control the output of my xml file, but the BOM character is being added. 回答1: # vim file.xml :set nobomb :wq 回答2: The File BOM Detector (freeware for Windows) makes it easy to remove the byte order mark. 回答3: just need to add this in your xslt file: <xsl:output method="text" encoding="ASCII"/> 回答4: Just strip first two bytes using any hex editor. 回答5: Remove the BOM

How to add a UTF-8 BOM in java

由 安稳与你 提交于 2019-11-26 05:36:48
问题 I have a Java stored procedure which fetches record from the table using Resultset object and creates a csv file. BLOB retBLOB = BLOB.createTemporary(conn, true, BLOB.DURATION_SESSION); retBLOB.open(BLOB.MODE_READWRITE); OutputStream bOut = retBLOB.setBinaryStream(0L); ZipOutputStream zipOut = new ZipOutputStream(bOut); PrintStream out = new PrintStream(zipOut,false,\"UTF-8\"); out.write(\'\\ufeff\'); out.flush(); zipOut.putNextEntry(new ZipEntry(\"filename.csv\")); while (rs.next()){ out

Write text files without Byte Order Mark (BOM)?

由 落爺英雄遲暮 提交于 2019-11-26 04:19:58
问题 I am trying to create a text file using VB.Net with UTF8 encoding, without BOM. Can anybody help me, how to do this? I can write file with UTF8 encoding but, how to remove Byte Order Mark from it? edit1: I have tried code like this; Dim utf8 As New UTF8Encoding() Dim utf8EmitBOM As New UTF8Encoding(True) Dim strW As New StreamWriter(\"c:\\temp\\bom\\1.html\", True, utf8EmitBOM) strW.Write(utf8EmitBOM.GetPreamble()) strW.WriteLine(\"hi there\") strW.Close() Dim strw2 As New StreamWriter(\"c:\
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