Using regular expressions when reading a file

[Alexander Zhirov]

On Thursday, 5 May 2022 at 19:19:26 UTC, Ali Çehreli wrote:
> Couldn't help myself from improving. :) The following regex 
> works in my Linux console. No issues with '\n'. (?) It also 
> allows for leading and trailing spaces:
>
> import std.regex;
> import std.stdio;
> import std.algorithm;
> import std.array;
> import std.typecons;
> import std.functional;
>
> void main() {
>   auto p_property = regex(r"^ *(\w+) *= *(\w+) *$");
>   const properties = File("settings.conf")
>                      .byLineCopy
>                      .map!(line => matchFirst(line, p_property))
>                      .filter!(not!empty) // OR: .filter!(m => 
> !m.empty)
>                      .map!(m => tuple(m[1], m[2]))
>                      .assocArray;
>
>   writeln(properties);
> }

It will need to be sorted out with a fresh head. 😀 Thanks!