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Think about Loose Coupling
 
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why not just eval?
Because with eval, you must worry about delimiters. For example, if either string had contained "/", the eval example given elsewhere in this thread would fail. Also, eval invites disaster in a proxy-privilege environment (like CGI or other daemons).

The lookup table isn't hard to create:

## initialization my $old = 'abc'; my $new = 'xyz'; my %table; @table{split //, $old} = split //, $new; my $table_re = join '|', map quotemeta reverse sort keys %table; ## the deed my $string = 'abracadabra'; $string =~ s/($table_re)/$table{$1}/g;

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.


In reply to Re^3: How to use a variable in tr/// by merlyn
in thread How to use a variable in tr/// by perl-novice

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