Using regular expressions when reading a file

[forkit]

On Thursday, 5 May 2022 at 17:53:57 UTC, Alexander Zhirov wrote:
> I want to use a configuration file with external settings. I'm 
> trying to use regular expressions to read the `Property = 
> Value` settings. I would like to do it all more beautifully. Is 
> there any way to get rid of the line break character? How much 
> does everything look "right"?

regex never looks right ;-)

try something else perhaps??

// ------------

module test;

import std;

void main()
{
     auto file = File("d:\\settings.conf", "r");
     string[string] aa;

     // create an associate array of settings -> [key:value]
     foreach (line; file.byLine().filter!(a => !a.empty))
     {
         auto myTuple = line.split(" = ");
         aa[myTuple[0].to!string] = myTuple[1].to!string;
     }

     // write out all the settings.
     foreach (key, value; aa.byPair)
         writefln("%s:%s", key, value);

     writeln;

     // write just the host value
     writeln(aa["host"]);

}


// ------------