encoding

问题 Given a problem that is encoded using Z3's reals, which of the statistics that Z3 /smt2 /st produces might be helpful in order to judge if the reals engine "has problems/does lots of work"? In my case, I have two mostly equivalent encodings of the problem, both using reals. The "small" difference in the encoding, however, makes a big difference in runtime, namely, that encoding A takes 2:30min and encoding B 13min. The Z3 statistics show that conflicts and quant-instantiations are mostly

问题 There doesn't seem to be an accepted way of sending down a header parameter in non ascii format. The header for file download usually looks like Content-disposition: attachment; filename="theasciifilename.doc" Except if you smash a utf8 encoded string in the filename parameter, Firefox will handle it fine, whereas IE will throw up. There is a document on CodeProject that explains a method for encoding the filename. This document encodes Bản Kiểm Kê.doc to B%e1%ba%a3n%20Ki%e1%bb%83m%20K%c3%aa

问题 I would like to know how I can convert a short ASCII string to a number (int, float, or numeric string). I saw a couple of posts here mentioned perfect hashes which seems like it might be what I need. However, I'm not quite understanding the math for this. How could you convert an ASCII string into a sequence of numbers and then back to a string? As a side note, breaking a string down into it's ASCII character numbers is easy enough. foreach(str_split($string) as $char) $number .= ord($char);

问题 As we use # for inserting comments in Python, then how does Python takes: # -*- coding: utf-8 -*- differently? 回答1: Yes, it is also a comment. And the contents of that comment carry special meaning if located at the top of the file, in the first two lines. From the Encoding declarations documentation: If a comment in the first or second line of the Python script matches the regular expression coding[=:]\s*([-\w.]+) , this comment is processed as an encoding declaration; the first group of

问题 As we use # for inserting comments in Python, then how does Python takes: # -*- coding: utf-8 -*- differently? 回答1: Yes, it is also a comment. And the contents of that comment carry special meaning if located at the top of the file, in the first two lines. From the Encoding declarations documentation: If a comment in the first or second line of the Python script matches the regular expression coding[=:]\s*([-\w.]+) , this comment is processed as an encoding declaration; the first group of

问题 My website is using charset iso 8859 1 <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> when user post chinese character, it will be saved into the database as & # 2 0 3 2 0 ; & # 2 2 9 0 9 ; which will output as the chinese character when retrieved. I need to set my website to UTF-8 when user post chinese character, it will be saved as some funky character in the mysql, and when retrieved, some characters are correct but some are wrong. my question is, after i set

问题 Why do I get after the "autodie" a different output? #!/usr/bin/env perl use warnings; use 5.012; use utf8; use open ':encoding(utf-8)'; use open ':std'; open my $fh, '>', 'test.txt' or die $!; say $fh 'käse'; close $fh; open my $fh1, '<', 'test.txt' or die $!; while ( my $row = readline( $fh1 ) ) { print $row; } close $fh1; use autodie; open my $fh2, '<', 'test.txt'; while ( my $row = readline( $fh2 ) ) { print $row; } close $fh2; # Output: # käse # käse 回答1: Unless someone comes in with a

问题 Why do I get after the "autodie" a different output? #!/usr/bin/env perl use warnings; use 5.012; use utf8; use open ':encoding(utf-8)'; use open ':std'; open my $fh, '>', 'test.txt' or die $!; say $fh 'käse'; close $fh; open my $fh1, '<', 'test.txt' or die $!; while ( my $row = readline( $fh1 ) ) { print $row; } close $fh1; use autodie; open my $fh2, '<', 'test.txt'; while ( my $row = readline( $fh2 ) ) { print $row; } close $fh2; # Output: # käse # käse 回答1: Unless someone comes in with a

问题 I want to write out a text file. Instead of the default UTF-8, I want to write it encoded as ISO-8859-1 which is code page 28591. I have no idea how to do this... I'm writing out my file with the following very simple code: using (StreamWriter sw = File.CreateText(myfilename)) { sw.WriteLine("my text..."); sw.Close(); } 回答1: using System.IO; using System.Text; using (StreamWriter sw = new StreamWriter(File.Open(myfilename, FileMode.Create), Encoding.WhateverYouWant)) { sw.WriteLine("my text..

问题 I want to write out a text file. Instead of the default UTF-8, I want to write it encoded as ISO-8859-1 which is code page 28591. I have no idea how to do this... I'm writing out my file with the following very simple code: using (StreamWriter sw = File.CreateText(myfilename)) { sw.WriteLine("my text..."); sw.Close(); } 回答1: using System.IO; using System.Text; using (StreamWriter sw = new StreamWriter(File.Open(myfilename, FileMode.Create), Encoding.WhateverYouWant)) { sw.WriteLine("my text..