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NAME

e - beastmode unleashed

SYNOPSIS

Add a trace marker:

    perl -Me -e 'sub f1 { trace } sub f2 { f1 } f2'

Watch a reference for changes:

    perl -Me -e 'my $v = {}; sub f1 { watch( $v ) } sub f2 { f1; $v->{a} = 1 } f2'

    perl -Me -e '
        package A {
            use e;
            my %h = ( aaa => 111 );

            watch(\%h);

            sub f1 {
                $h{b} = 1;
            }

            sub f2 {
                f1();
                delete $h{aaa};
            }
        }

        A::f2();
    '

Benchmark two snippets of code:

    perl -Me -e 'n { slow => sub{ ... }, fast => sub{ ... }}, 10000'

Launch the Runtime::Debugger:

    perl -Me -e 'repl'

Invoke the Tiny::Prof:

    perl -Me -e 'prof'

Convert a data structure to json:

    perl -Me -e 'say j { a => [ 1..3] }'

Convert a data structure to yaml:

    perl -Me -e 'say yml { a => [ 1..3] }'

Pretty print a data structure:

    perl -Me -e 'p { a => [ 1..3] }'

Data dump a data structure:

    perl -Me -e 'd { a => [ 1..3] }'

Devel::Peek dump a data structure:

    perl -Me -e 'dd { a => [ 1..3] }'

Print data as a table:

    perl -Me -e 'table( [qw(key value)], [qw(red 111)], [qw(blue 222)] )'
    +------+-------+
    | key  | value |
    +------+-------+
    | red  | 111   |
    | blue | 222   |
    +------+-------+

DESCRIPTION

This module imports many features that make one-liners and script debugging much faster.

It has been optimized for performance to not import all features right away: thereby making its startup cost quite low.

SUBROUTINES

monkey_patch

Insert subroutines into the symbol table.

Extracted from Mojo::Util for performance.

Perhaps can be updated based on the outcome of this issue: https://github.com/mojolicious/mojo/pull/2173

import

repl

Add a breakpoint to code.

Basically inserts a Read Evaluate Print Loop.

Enable to analyze code in the process.

trace

Show a stack trace.

    trace( $depth=1 )

watch

Watch a reference for changes.

    watch( $ref, OPTIONS )

OPTIONS:

    -clone => 0,               # Will not watch cloned objects.

    -methods => "fetch",       # Monitor just this method.
    -methods => [ "fetch" ],   # Same.

    -levels  => NUM,           # How many scope levels to show.
    NUM,                       # Same.

    -raw => 1,                 # Include internal calls.
    -NUM,                      # Same.

    -message => STR,           # Message to display.
    STR,                       # Same.

prof

Profile the code from this point on.

    my $obj = prof;
    ...
    # $obj goes out of scope and builds results.

n

Benchmark and compare different pieces of code.

    Time single block of code.
    n sub{ ... };
    n sub{ ... }, 100000;

    # Compare blocks of code.
    n {
        slow => sub{ ... },
        fast => sub{ ... },
    };
    n {
        slow => sub{ ... },
        fast => sub{ ... },
    }, 10000;

j

JSON Parser.

x

XML parser.

yml

YAML parser.

b

Work with strings.

c

Work with arrays.

f

Work with files.

say

Print with newline.

p

Pretty data printer.

np

Return pretty printer data.

d

Data dumper.

dd

Internal data dumper.

dye

Color a string.

    say dye( "HEY", "RED" );

table

Print data as a table:

    perl -Me -e 'table( [qw(key value)], [qw(red 111)], [qw(blue 222)] )'
    +------+-------+
    | key  | value |
    +------+-------+
    | red  | 111   |
    | blue | 222   |
    +------+-------+

Context sensitive!

    - Void   - output table.
    - List   - return individual lines.
    - Scalar - return entire table as a string.

g

Perform a get request.

l

Work with URLs.

pod

Work with perl pod.

AUTHOR

Tim Potapov, <tim.potapov[AT]gmail.com>

BUGS

Please report any bugs or feature requests to https://github.com/poti1/e/issues.

SUPPORT

You can find documentation for this module with the perldoc command.

    perldoc e

You can also look for information at:

https://metacpan.org/pod/e

https://github.com/poti1/e

LICENSE AND COPYRIGHT

This software is Copyright (c) 2024 by Tim Potapov.

This is free software, licensed under:

  The Artistic License 2.0 (GPL Compatible)

cpanm e

perl -MCPAN -e shell
install e