I use WxPerl and I would like to draw unicode or utf8 text.
Is that possible?
Currently, i have something like this:
$dc->DrawText( $linestr, $x, $y * $th ); but it seems to draw ascii like text only.
I found out that yes
$this->{Font} = Wx::Font->new( 10, wxMODERN, wxNORMAL, wxNORMAL );
$this->{Font}-> SetDefaultEncoding(wxFONTENCODING_UTF8); # error for this line see later
$dc->SetFont($this->{Font});
Unfortunately, I get an error
Usage: Wx::Font::SetDefaultEncoding(encoding) at ........
I found it out.
$this->{Font}-> SetDefaultEncoding(wxFONTENCODING_UTF8);
needs to be $this->{Font}-> SetEncoding(wxFONTENCODING_UTF8);
The name of the function changed in some of the versions.
Related
I want to convert special character utf8 value to it's text.
For example, if input is %20, the output will be whitespace
if input is %23, the output will be #
void main() {
var raw = 'Hello%20Bebop%23yahoo';
var parsed = Uri.decodeComponent(raw);
print(parsed);
}
Result:
Hello Bebop#yahoo
Looks like you converting to an ASCCI like encoding. What function you are using for that result?
Try finding the encoding table to your %20 and %23 output, so you will see where you heading at the moment.
I want to grab lots of text content from a .sql file between a --Start and --End comment.
Whatever I do somehow I don`t get the substring method correctly to grab only the text within the --Start and --End comment:
text.sql
This text I want not
--Start
this text I want here
--End
This text I want not
This is what I tried:
$insertStartComment = "--Start"
$insertEndComment = "--End"
$content = [IO.File]::ReadAllText("C:\temp\test.sql")
$insertStartPosition = $content.IndexOf($insertStartComment) + $insertStartComment.Length
$insertEndPosition = $content.IndexOf($insertEndComment)
$content1 = $content.Substring($insertStartPosition, $content1.Length - $insertEndPosition)
$content = $content1.Substring(0,$content1.Length - $insertEndPosition)
It would be nice if someone could help me out find my error :-)
There's an attempt to use uninitialized variable in the code:
$content1 = $content.Substring($insertStartPosition, $content1.Length - $insertEndPosition)
The variable $content1 isn't initialized yet, thus the substring call goes haywire. When you run the code again, the variable is set - and results are even more weird.
Use Powershell's Set-StrictMode to enable warnings about uninitialized variables.
It's not the substring approach you are looking for, but I figured that I would toss out a RegEx solution. This will find the text between the --Start and --End on a text file. In this case, I am grouping the matched text with a named capture called LineYouWant and display the matches that it finds. This also works if you have multiple instances of --Start--End blocks in a single file.
$Text = [IO.File]::ReadAllText("C:\users\proxb\desktop\SQL.txt")
[regex]::Matches($Text,'.*--Start\s+(?<LineYouWant>.*)\s+--End.*') | ForEach {
$_.Groups['LineYouWant'].Value
}
Say we have a string:
s = '\xe5\xaf\x92\xe5\x81\x87\\u2014\\u2014\xe5\x8e\xa6\xe9\x97\xa8'
Somehow two symbols, '—', whose Unicode is \u2014 was not correctly encoded as '\xe2\x80\x94' in UTF-8. Is there an easy way to decode this string? It should be decoded as 寒假——厦门
Manually using the replace function is OK:
t = u'\u2014'
s.replace('\u2014', t.encode('utf-8')
print s
However, it is not automatic. If we extract the Unicode,
index = s.find('\u')
t = s[index : index+6]
then t = '\\u2014'. How to convert it to UTF-8 code?
You're missing extra slashes in your replace()
It should be:
s.replace("\\u2014", u'\u2014'.encode("utf-8") )
Check my warning in the comments of the question. You should not end up in this situation.
Here is my naive approach:
# puppet/init.pp
$x = 'hello ' +
'goodbye'
This does not work. How does one concatenate strings in Puppet?
Keyword variable interpolation:
$value = "${one}${two}"
Source: http://docs.puppetlabs.com/puppet/4.3/reference/lang_variables.html#interpolation
Note that although it might work without the curly braces, you should always use them.
I use the construct where I put the values into an array an then 'join' them.
In this example my input is an array and after those have been joined with the ':2181,' the resulting value is again put into an array that is joined with an empty string as separator.
$zookeeperservers = [ 'node1.example.com', 'node2.example.com', 'node3.example.com' ]
$mesosZK = join([ "zk://" , join($zookeeperservers,':2181,') ,":2181/mesos" ],'')
resulting value of $mesosZK
zk://node1.example.com:2181,node2.example.com:2181,node3.example.com:2181/mesos
Another option not mentioned in other answers is using Puppet's sprintf() function, which functions identically to the Ruby function behind it. An example:
$x = sprintf('hello user %s', 'CoolUser')
Verified to work perfectly with puppet. As mentioned by chutz, this approach can also help you concatenate the output of functions.
The following worked for me.
puppet apply -e ' $y = "Hello" $z = "world" $x = "$y $z" notify { "$x": } '
notice: Hello world
notice: /Stage[main]//Notify[Hello world]/message: defined 'message' as 'Hello world'
notice: Finished catalog run in 0.04 seconds
The following works as well:
$abc = "def"
file { "/tmp/$abc":
You could use the join() function from puppetlabs-stdlib. I was thinking there should be a string concat function there, but I don't see it. It'd be easy to write one.
As stated in docs, you can just use ${varname} interpolation. And that works with function calls as well:
$mesosZK = "zk://${join($zookeeperservers,':2181,')}:2181/mesos"
$x = "${dirname($file)}/anotherfile"
Could not use {} with function arguments though: got Syntax error at '}'.
How can I encode the Unicode character U+0048 (H), say, in a PowerShell string?
In C# I would just do this: "\u0048", but that doesn't appear to work in PowerShell.
Replace '\u' with '0x' and cast it to System.Char:
PS > [char]0x0048
H
You can also use the "$()" syntax to embed a Unicode character into a string:
PS > "Acme$([char]0x2122) Company"
AcmeT Company
Where T is PowerShell's representation of the character for non-registered trademarks.
Note: this method works only for characters in Plane 0, the BMP (Basic Multilingual Plane), chars < U+10000.
According to the documentation, PowerShell Core 6.0 adds support with this escape sequence:
PS> "`u{0048}"
H
see https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_special_characters?view=powershell-6#unicode-character-ux
Maybe this isn't the PowerShell way, but this is what I do. I find it to be cleaner.
[regex]::Unescape("\u0048") # Prints H
[regex]::Unescape("\u0048ello") # Prints Hello
For those of us still on 5.1 and wanting to use the higher-order Unicode charset (for which none of these answers work) I made this function so you can simply build strings like so:
'this is my favourite park ',0x1F3DE,'. It is pretty sweet ',0x1F60A | Unicode
#takes in a stream of strings and integers,
#where integers are unicode codepoints,
#and concatenates these into valid UTF16
Function Unicode {
Begin {
$output=[System.Text.StringBuilder]::new()
}
Process {
$output.Append($(
if ($_ -is [int]) { [char]::ConvertFromUtf32($_) }
else { [string]$_ }
)) | Out-Null
}
End { $output.ToString() }
}
Note that getting these to display in your console is a whole other problem, but if you're outputting to an Outlook email or a Gridview (below) it will just work (as utf16 is native for .NET interfaces).
This also means you can also output plain control (not necessarily unicode) characters pretty easily if you're more comfortable with decimal since you dont actually need to use the 0x (hex) syntax to make the integers. 'hello',32,'there' | Unicode would put a non-breaking space betwixt the two words, the same as if you did 0x20 instead.
Another way using PowerShell.
$Heart = $([char]0x2665)
$Diamond = $([char]0x2666)
$Club = $([char]0x2663)
$Spade = $([char]0x2660)
Write-Host $Heart -BackgroundColor Yellow -ForegroundColor Magenta
Use the command help Write-Host -Full to read all about it.
To make it work for characters outside the BMP you need to use Char.ConvertFromUtf32()
'this is my favourite park ' + [char]::ConvertFromUtf32(0x1F3DE) +
'. It is pretty sweet ' + [char]::ConvertFromUtf32(0x1F60A)
Note that some characters like 🌎 might need a "double rune" to be printed:
PS> "C:\foo\bar\$([char]0xd83c)$([char]0xdf0e)something.txt"
Will print:
C:\foo\bar\🌎something.txt
You can find these "runes" here, in the "unicode escape" row:
https://dencode.com/string