in reply to Re^3: using Path::Tiny and reformating result
in thread using Path::Tiny and reformating result

Thx, haukex, I was gonna spend a month on that, and I only had a few days before it needs to be done. I was almost through the logic of centering, but yours looks so much cleaner. This is essentially your same program but using Path::Class to specify input and output files and adding a couple customizations for this particular text:

#!/usr/bin/perl -w
use strict;
use 5.010;
use Path::Tiny;
use utf8;
use open qw/:std :utf8/;
use Text::Wrap 'wrap';

my $dir      = path("/home/bob");
my $name     = "1.promises.txt";
my $new_name = path( $dir, "7.revised.txt" );
my $path1    = path( $dir, $name );
say $path1;
say "new name is $new_name";
open my $gh, '>:raw:encoding(UTF-8)', "$new_name" or die $!;
open my $fh, '<:raw:encoding(UTF-8)', "$path1"    or die $!;
local $/                   = '';
local $Text::Wrap::columns = 71;

while (<$fh>) {
   say "default is $_";
   s/God/a higher power/;
   s/Бог/Высшая Сила/;
   if (/\A\w+\z/) {
      print $gh "\n";
      print $gh ' ' x int( ( 71 - length ) / 2 ), $_, "\n";
      print $gh "\n";
   s/\n|\s{2,}|\t/ /g; 
   print $gh wrap( ' ' x 5, '', $_ ), "\n";
close $fh;
close $gh;
system("gedit $new_name &");
system("cat $new_name &");

     Если эта фаза нашего развития болезненна для нас, мы будем
удивлены, когда половина пути окажется позади. Мы познáем новую
свободу и новое счастье. Мы не будем сожалеть о нашем прошлом и вместе
с тем не захотим полностью забывать о нем. Мы узнаем, что такое
чистота, ясность, покой. Как бы низко мы ни пали в прошлом, мы поймем,
что наш опыт может быть полезен другим. Исчезнут ощущения ненужности и
жалости к себе. Мы потеряем интерес к вещам, которые подогревают наше
самолюбие, и в нас усилится интерес к другим людям. Мы освободимся от
эгоизма. Изменится наше мировоззрение, исчезнут страх перед людьми и
неуверенность в экономическом благополучии. Мы интуитивно будем знать,
как вести себя в ситуациях, которые раньше нас озадачивали. Мы поймем,
что Высшая Сила делает для нас то, что мы не смогли сами сделать для
     Не слишком ли это звучит многообещающе? Нет. Все это произошло со
многими из нас, с одними раньше, с другими позже. Все это становится
явью, если приложить усилия.


     If we are painstaking about this phase of our development, we
will be amazed before half through! We are going to know a new freedom
and happiness. We will not regret the past nor wish to shut the door
on it. We will comprehend the word serenity and know peace. No matter
how far down the scale we have gone, we will see how our experience
can benefit others. That feeling of use- lessness and self-pity will
disappear. We will lose interest in selfish things and gain interest
in our fellows. Self-seeking will slip away. Our whole attitude and
outlook upon life will change. Fear of people and of economic
insecurity will leave us. We will intuitively know how to handle
situations which used to baffle us. We will suddenly realize that a
higher power is doing for us what we could not do for ourselves.
     Are these extravagant promises? We think not. They are being
fulfilled among us—sometimes quickly, sometimes slowly. They will
always materialize if we work for them.

I'm still not completely clear what local $/ = ''; does, even with the say statements for $_. It's exactly what I need, but perlvar does not discuss what it means to set it like this, which seems, as you say, to be paragraph mode. (?)

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Re^5: using Path::Tiny and reformating result
by AnomalousMonk (Bishop) on Jul 02, 2018 at 23:32 UTC
    ... I'm still not completely clear what local $/ = ''; does ... perlvar does not discuss what it means to set it like this ...

    Quoth perlvar:

    The input record separator, newline by default. This influences Perl's idea of what a "line" is. ... [Treats] empty lines as a terminator if set to the null string. ... Setting it to "\n\n" means something slightly different than setting to "", if the file contains consecutive empty lines. Setting to "" will treat two or more consecutive empty lines as a single empty line. Setting to "\n\n" will blindly assume that the next input character belongs to the next paragraph, even if it's a newline. ...
    So yes,  local $/ = ''; sets what you might call "indulgent" (update: or maybe "greedy"?) paragraph mode.
    c:\@Work\Perl\monks\Magnolia25>perl -wMstrict -le "my $data = qq{line 1 \n} . qq{line 2 \n} . qq{\n} . qq{\n} . qq{\n} . qq{\n} . qq{\n} . qq{line 8 \n} . qq{line 9 \n} . qq{\n} . qq{\n} . qq{\n} . qq{\n} . qq{line 14 \n} . qq{\n} . qq{\n} . qq{\n} ; print qq{[[$data]] \n}; ;; open my $dfh, '<', \$data or die $!; ;; local $/ = ''; while (<$dfh>) { print qq{block <<$_>>}; } " [[line 1 line 2 line 8 line 9 line 14 ]] block <<line 1 line 2 >> block <<line 8 line 9 >> block <<line 14 >>
    Try assigning  "\n\n" to  $/ as an experiment; how many blocks get printed out then?

    Give a man a fish:  <%-{-{-{-<

      Thank you, AM.anomylous. All the words were there in perlvar, but I couldn't put it together without your well-contrived example. It was certainly a teachable moment for me, and I'd like to be able to show it precisely, so I worked up a bash script for the output and layout with monastery-conforming tags. The first script is and sets the irs (not the taxers) to the null string. Output, then source listing: sets the irs to /n/n. Output, then source:

      I agree, local $/ = ''; sets what you might call "indulgent" or "greedy" paragraph mode.