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APPENDIX C

Perl Code Examples

is appendix provides Perl equivalents of some algorithms presented in Chapter 9 as C

or Java code. While the C and Java code examples in Chapter 9 are useful for developing

your own commercial-grade soware, these Perl equivalents are helpful for internal-use

tools.

If you do not use Perl, feel free to skip this appendix. But, in the same vein, I encourage

you to explore the Perl programming language to see whether it can oer you something.

I use nothing but Perl for virtually all of my programming needs.

*

A few of these Perl code examples began their life as code courtesy of regex wizard Jerey

Friedl, author of a most excellent book entitled Mastering Regular Expressions, ird Edi-

tion (O’Reilly Media, 2006). Tom Christiansen and Nathan Torkington’s Perl Cookbook,

Second Edition (O’Reilly Media, 2003) should also be used, because it provides a wealth

of incredibly useful Perl examples.

Japanese Code Conversion

e programs presented in the following sections perform Japanese code conversion.

Note that all of them support ASCII (JIS-Roman), JIS X 0208:1997, and half-width ka-

takana (even for ISO-2022-JP encoding, which, technically, does not support half-width

katakana).

* In retrospect, I should have instead learned the Ruby programming language, if for no other reason than my

daughter’s name is Ruby.

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Appendix C: Perl Code Examples ...