nc
Named Capture to Data Tables
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Last update: 22 February 2024
Copyright license: GNU General Public License, version 3.0
Software version identifier: 2020.8.6, 2023.5.1, 2019.9.16, 2019.10.19, 2020.1.16, 2020.2.27, 2020.3.23, 2020.5.13, 2023.5.1, 2023.8.24, 2024.1.31, 2024.2.21
User-friendly functions for extracting a data table (row for each match, column for each group) from non-tabular text data using regular expressions, and for melting columns that match a regular expression. Patterns are defined using a readable syntax that makes it easy to build complex patterns in terms of simpler, re-usable sub-patterns. Named R arguments are translated to column names in the output; capture groups without names are used internally in order to provide a standard interface to three regular expression 'C' libraries ('PCRE', 'RE2', 'ICU'). Output can also include numeric columns via user-specified type conversion functions.
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