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We've expanded our Perl news coverage and improved our search! Search for all things Perl across O'Reilly! Data Structures Complex Data Structures Cookbook This document describes Perl's complex data structures, which were introduced in 5.0. It covers arrays of arrays, hashes of arrays, hashes of hashes, and other more elaborate constructs. Data Manipulation Manipulating numbers, dates, strings, arrays, hashes, and including miscellaneous data issues. Manipulating Lists of Lists in Perl A tutorial describing how the build and use lists of lists (arrays of arrays). Perl Predefined Variables A listing of reserved names that have special meaning to Perl. Also includes a discussion of variables that contain information about various error conditions. Perl References and Nested Data Structures An introduction to using references in Perl, distinguishing between symbolic references and "hard" references introduced in 5.005.
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