NAME Data::Format::Pretty::Console - Pretty-print data structure for console output VERSION version 0.22 SYNOPSIS In your program: use Data::Format::Pretty::Console qw(format_pretty); ... print format_pretty($result); Some example output: Scalar, format_pretty("foo"): foo List, format_pretty([1..21]): .------------------------------------------------------. | 1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | | '----+----+----+----+----+----+----+----+----+----+----' The same list, when program output is being piped (that is, (-t STDOUT) is false): 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 21 Hash, format_pretty({foo=>"data",bar=>"format",baz=>"pretty",qux=>"console"}): +-----+---------+ | bar | format | | baz | pretty | | foo | data | | qux | console | '-----+---------' 2-dimensional array, format_pretty([ [1, 2, ""], [28, "bar", 3], ["foo", 3, undef] ]): +---------+---------+---------+ | 1 | 2 | | | 28 | bar | 3 | | foo | 3 | | '---------+---------+---------' An array of hashrefs, such as commonly found if you use DBI's fetchrow_hashref() and friends, format_pretty([ {a=>1, b=>2}, {b=>2, c=>3}, {c=>4} ]): .-----------. | a | b | c | +---+---+---+ | 1 | 2 | | | | 2 | 3 | | | | 4 | '---+---+---' Some more complex data, format_pretty({summary => "Blah...", users => [{name=>"budi", domains=>["foo.com", "bar.com"], quota=>"1000"}, {name=>"arif", domains=>["baz.com"], quota=>"2000"}], verified => 0}): summary: Blah... users: .---------------------------------. | domains | name | quota | +------------------+------+-------+ | foo.com, bar.com | budi | 1000 | | baz.com | arif | 2000 | '------------------+------+-------' verified: 0 Structures which can't be handled yet will simply be output as YAML, format_pretty({a {b=>1}}): --- a: b: 1 DESCRIPTION This module is meant to output data structure in a "pretty" or "nice" format, suitable for console programs. The idea of this module is that for you to just merrily dump data structure to the console, and this module will figure out how to best display your data to the end-user. Currently this module tries to display the data mostly as a nice ASCII table (or a series of ASCII tables), and failing that, display it as YAML. This module takes piping into consideration, and will output a simpler, more suitable format when your user pipes your program's output into some other program. Most of the time, you don't have to configure anything, but some options are provided to tweak the output. This module uses Log::Any for logging. FUNCTIONS format_pretty($data, \%opts) Return formatted data structure. Options: * interactive => BOOL (optional, default undef) If set, will override interactive terminal detection (-t STDOUT). Simpler formatting will be done if terminal is non-interactive (e.g. when output is piped). Using this option will force simpler/full formatting. * list_max_columns => INT When displaying list as columns, specify maximum number of columns. This can be used to force fewer columns (for example, single column) instead of using the whole available terminal width. * table_column_orders => [[COLNAME1, COLNAME2], ...] Specify column orders when drawing a table. If a table has all the columns, then the column names will be ordered according to the specification. For example, when table_column_orders is [[qw/foo bar baz/]], this table's columns will not be reordered because it doesn't have all the mentioned columns: |foo|quux| But this table will: |apple|bar|baz|foo|quux| into: |apple|foo|bar|baz|quux| * table_column_formats => [{COLNAME=>FMT, ...}, ...] Specify formats for columns. Each table format specification is a hashref {COLNAME=>FMT, COLNAME2=>FMT2, ...}. It will be applied to a table if the table has all the columns. FMT is a format specification according to Data::Unixish::Apply, it's basically either a name of a dux function (e.g. "date") or an array of function name + arguments (e.g. "[['date', [align => {align=>'middle'}]]"). ENVIRONMENT * INTERACTIVE (bool) To set default for "interactive" option (overrides automatic detection). * FORMAT_PRETTY_LIST_MAX_COLUMNS To set "list_max_columns" option. * FORMAT_PRETTY_TABLE_COLUMN_FORMATS To set "table_column_formats" option, interpreted as JSON. * FORMAT_PRETTY_TABLE_COLUMN_ORDERS To set "table_column_orders" option, interpreted as JSON. TODO * when displaying list in columns, option to fill column-wise instead of row-wise This is like 'ls -x' (our default) vs 'ls'. Probably set via "list_fill_by_columns" option. SEE ALSO Modules used for formatting: Text::ASCIITable, YAML. Data::Format::Pretty AUTHOR Steven Haryanto COPYRIGHT AND LICENSE This software is copyright (c) 2013 by Steven Haryanto. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.