ascii


SMS PDU Encoding for characters like “é, è, à, @”

一世执手 提交于 2020-01-25 06:51:26
问题 I am working on SMS PDU encoding in C. I am able to convert 7-bit ASCII characters into 8 bit PDU. But when I try to use characters like "é, à, è, @" it doesn't show it's correct value. How can I encode these characters? I am using GSM 7 bit encoding. I am attaching the code. what changes should I do to convert these characters? #include <stdio.h> #include <string.h> #include <time.h> enum { SMS_MAX_PDU_LENGTH = 256 }; enum { BITMASK_7BITS = 0x7F, BITMASK_8BITS = 0xFF, BITMASK_HIGH_4BITS =

Python - Convert bytes / unicode tab delimited data to csv file

一个人想着一个人 提交于 2020-01-24 18:59:06
问题 I'm pulling the following line of data from an API. The data starts with a b prefix which would indicate according to the Python 3.3 documentation that we are dealing with "a bytes literal" with the escape sequences \t and \n representing the ASCII Horizontal Tab (TAB) and ASCII Linefeed (LF) respectively. b'settlement-id\tsettlement-start-date\tsettlement-end-date\tdeposit-date\ttotal-amount\tcurrency\ttransaction-type\torder-id\tmerchant-order-id\tadjustment-id\tshipment-id\tmarketplace

.Net Regex ValidationExpression ASCII

让人想犯罪 __ 提交于 2020-01-23 20:30:28
问题 Anyone know a good Regex expression to drop in the ValidationExpression to be sure that my users are only entering ASCII characters? <asp:RegularExpressionValidator id="myRegex" runat="server" ControlToValidate="txtName" ValidationExpression="???" ErrorMessage="Non-ASCII Characters" Display="Dynamic" /> 回答1: One thing you may want to watch out for is the lower part of the ascii table has a lot of control characters which can cause funky results. Here's the expression I use to only allow "non

What is the use of '\b' (backspace)

笑着哭i 提交于 2020-01-23 08:30:09
问题 I'm taking a Python class right now, and I just learned about the backspace character. Like newline (\n), backspace is a special character with ASCII code 8. My teacher couldn't think of a reason to use that, but I'm curious as to how it's used. Maybe just historical reasons? When I tried print("Hellow\b World") , I got just got what I expected: Hello World . What's the reason for the backspace character, and how might it be used? Edit: I am aware that it isn't python specific, but when

Swift 2 How to encode from ASCII to Hexadecimal

蓝咒 提交于 2020-01-22 03:00:09
问题 I have a simple ASCII string and i want to convert it to hexadecimal (base16). I'm using xCode 7 (so i'm on IOS9) but i can't find any solution anywhere. I tried to change the format of my string: StringToConvert(String(format: "%02hhx", $0)) Thanks for your help :) 回答1: "abcdefghijklmnopqrstuvwxyz0123456789".utf8.map{ $0 }.reduce("") { $0 + String($1, radix: 16, uppercase: false) } modify it by your needs "ABCD".utf8.map{ $0 }.reduce("") { $0 + "0x" + String($1, radix: 16, uppercase: false)

(C) Program that prints all CP850 characters on the screen and in a file have different outputs

我们两清 提交于 2020-01-21 18:55:30
问题 The program is pretty simple, it helped me get all the ascii codes since my computer doesn't seem to follow the standards in the interwebs. The problem I'm finding is that the outputs on the file and on the cmd differ. I need to use the box characters for a project that prints a file and on the screen and the file output doesn´t have them apparently. #define _CRT_SECURE_NO_WARNINGS #include <stdlib.h> #include <stdio.h> #include <clocale> FILE* ascii; void main() { ascii = fopen("D://temp/

How do I convert an ascii code to the escaped 'screen friendly' view?

丶灬走出姿态 提交于 2020-01-17 08:21:11
问题 In C# .Net I'm looking to convert an ascii value (13, 16 etc) to its escaped view (eg \n, \r, \t etc) for a selector. Is there a built in way to do this or do I have to resort to using a look up table? 回答1: Not that I'm aware of... but it would be a very small lookup table anyway. It may be easiest to use a switch statement, in fact: public static string Escape(char c) { switch (c) { case '\n': return "\\n"; case '\r': return "\\r"; case '\t': return "\\t"; case '\b': return "\\b"; // etc

Converting Mike Shaffer's RC4Encryption to C#

房东的猫 提交于 2020-01-16 01:11:07
问题 I'm following an article, http://www.4guysfromrolla.com/articles/091802-1.3.aspx, which shows how to convert Mike Shaffer's VB RC4 encryption to C#, however I'm getting different results than the original article, http://www.4guysfromrolla.com/webtech/010100-1.shtml. Using this test link from the original article, http://www.4guysfromrolla.com/demos/rc4test.htm, with a password of "abc" and plain text of "testing123", I get "B9 F8 AA 5D 31 B1 8A 42 1E D4". However, when using the C# version,

converting UTF-8 string to ASCII in pure LUA

大兔子大兔子 提交于 2020-01-15 09:11:53
问题 I have a question about sending and receiving data with special chars. (German Umlauts) When I send the string "Café Zeezicht" with the code below, then on the server-side the string is oke. But how can I receive and decode the receiving data that containing the same chars? Now it look likes "Caf? Zeezicht" I am searching for a pure LUA function, because I have no ability to load libraries. ------------------------------------------------------------ -- Function voor converting ASCII naar

What determines whether a browser will open or download a .txt file?

时光总嘲笑我的痴心妄想 提交于 2020-01-14 10:33:15
问题 Let me start by saying that I am aware that you can specify the Content-Disposition in the header and use either "attachment" or "inline" and this question is NOT about that (at least not directly). I have a file with a .txt extension. I am noticing different browser behavior dependent on the content of that .txt file. If my file contains alphanumeric characters and I paste the location of the file into the URL bar of (say) Chrome, the file opens in the browser. If my file contains an "SI"

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