Tony wrote:
>>> I want to be able to grab a section of a string, starting at X and ending at Y.
Detlef Lindenthal wrote:
>> ## Grab the amount like this:
>> $text = "The amount of the house is one hundred thousand dollars, and I cannot
>afford that price.";
>> $X = "amount of the house is";
>> $Y = ",";
>> $text =~ m,$X(.*?)$Y,;
>> print $1; ## This prints: " one hundred thousand dollars"
Tony wrote:
> I am not sure what the syntax is exactly, but it works great!
The regex' technic is not so difficult:
$text contains your string
=~ means: apply some regex ("regular expression" = search pattern or search and
replace pattern) on it
m, ....... , means: what is between the two commata (or some other 2 characters)
shall be found (m stands for "match").
$X and $Y are interpolatet; that means you could as well write
$text =~ m'amount of the house is(.*?),';
.. means: any character except \n in this case
..* means: any count of those characters from zero to infinite
? means: as few as possible (= nongreedy search)
(.*?) means: capture everything within these parens and return it named $1.
Learning is bliss.
