On May 24, Joel Divekar said:
#!/usr/bin/perl -w
my $a = "a:b:c:d:e:f:\:↔:↔:";
my $count = ($a =~ tr/\chr(29)//);
That doesn't work. First of all, '↔' in Perl is just 7 characters
in a row. HTML entity codes are for HTML, not Perl. If you want
character #8596 in Perl, you have to use chr(8596) or a hex sequence like
\x{2194}. Next, tr/// doesn't know what "\chr(29)" means. tr/// just
takes normal characters, octal or hex escape sequences, and ranges (two
characters with a - between them).
my $count = ($a =~ tr/\x{2194}//);
works.
--
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