20 lines
1.1 KiB
Plaintext
20 lines
1.1 KiB
Plaintext
The Comma-Separated-Value ('CSV') format is the most common way to store
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spreadsheets or the output of relational database queries in plain-text
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format. However, since commas (or other designated field-separator
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characters) may be embedded within data entries, the parsing of
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delimited records is non-trivial. Fortunately, in Perl this parsing is
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well handled by CPAN distribution Text::CSV. This permits us to address
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more specific data manipulation problems by building modules on top of
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Text::CSV.
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Text::CSV::Hashify is designed for the case where you simply want to
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turn a CSV file into a Perl hash. In particular, it is designed for the
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case where (a) the CSV file's first record is a list of fields in the
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ancestral database table and (b) one field (column) functions as a
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primary key, i.e., each record's entry in that field is non-null and is
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distinct from every other record's entry therein. Text::CSV::Hashify
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turns that kind of CSV file into one big hash of hashes.
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Text::CSV::Hashify can handle less typical cases; please consult the
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documentation for its other functionalities.
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