[019#2]

1 files changed, 31 insertions, 0 deletions

diff --git a/019/ch2.pl b/019/ch2.pl
new file mode 100755
index 0000000..4f110cf
--- /dev/null
+++ b/019/ch2.pl
@@ -0,0 +1,31 @@
+#!/usr/bin/env perl
+#
+# Write a script that can wrap the given paragraph at a specified column using
+# the greedy algorithm.
+#
+# (https://en.wikipedia.org/wiki/Line_wrap_and_word_wrap#Minimum_number_of_lines).
+################################################################################
+
+use strict;
+use warnings;
+
+my $COLUMN = shift or die "Usage: $0 <column> [file]\n";
+
+my @words;
+while (<>) {
+    push @words, split " ", $_;
+}
+
+my $col = 0;
+my @out_line;
+for my $word (@words) {
+    my $word_len = length $word;
+    if ($col + $word_len + 1> $COLUMN && @out_line) {
+        print "@out_line\n";
+        @out_line = ();
+        $col = 0;
+    }
+    push @out_line, $word;
+    $col += $word_len + 1;
+}
+print "@out_line\n";