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README  view on Meta::CPAN

VERSION
    This document describes version 0.002 of
    Acme::CPANModules::FormattingDate (from Perl distribution
    Acme-CPANModules-FormattingDate), released on 2023-10-29.

DESCRIPTION
    Overview

    Date formatting modules can be categorized by their expected input
    format and the formatting styles.

    Input format: Some modules accept date in the form of Unix epoch (an
    integer), or a list of integer produced by running the epoch through the
    builtin gmtime() or localtime() function. Some others might expect the
    date as DateTime object. For formatting style: there's strftime in the
    POSIX core module, and then there's the others.

    This list is organized using the latter criteria (formatting style).

    strftime (and variants)

    The POSIX module provides the strftime() routine which lets you format
    using a template string containing sprintf-style conversions like %Y
    (for 4-digit year), %m (2-digit month number from 1-12), and so on.
    There's also Date::strftimeq which provides an extension to this.

    You can actually add some modifiers for the conversions to set
    width/zero-padding/alignment, like you can do with sprintf (e.g. %03d
    supposing you want 3-digit day of month numbers). But this feature is
    platform-dependent.

    yyyy-mm-dd template

    This "yyyy-mm-dd" (for lack of a better term) format is much more
    commonly used in the general computing world, from spreadsheets to
    desktop environment clocks. And this format is probably older than
    strftime. The template is more intuitive to use for people as it gives a
    clear picture of how wide each component (and the whole string) will be.

    There are some modules you can use to format dates using this style.
    First of all there's Date::Formatter. I find its API a little bit
    annoying, from the verbose date component key names and inconsistent
    usage of plurals, to having to use a separate method to "create the
    formatter" first.

    PHP

    PHP decided to invent its own date template format. Its date() function
    accepts template string in which you specify single letter conversions
    like "Y' (for 4-digit year),"y"(2-digit year), and so on. Some of the

lib/Acme/CPANModules/FormattingDate.pm  view on Meta::CPAN

our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2023-10-29'; # DATE
our $DIST = 'Acme-CPANModules-FormattingDate'; # DIST
our $VERSION = '0.002'; # VERSION

my $text = <<'_';
**Overview**

Date formatting modules can be categorized by their expected input format and
the formatting styles.

Input format: Some modules accept date in the form of Unix epoch (an integer),
or a list of integer produced by running the epoch through the builtin gmtime()
or localtime() function. Some others might expect the date as <pm:DateTime>
object. For formatting style: there's strftime in the <pm:POSIX> core module,
and then there's the others.

This list is organized using the latter criteria (formatting style).

**strftime (and variants)**

The <pm:POSIX> module provides the `strftime()` routine which lets you format
using a template string containing sprintf-style conversions like `%Y` (for
4-digit year), `%m` (2-digit month number from 1-12), and so on. There's also
<pm:Date::strftimeq> which provides an extension to this.

You can actually add some modifiers for the conversions to set
width/zero-padding/alignment, like you can do with sprintf (e.g. `%03d`
supposing you want 3-digit day of month numbers). But this feature is
platform-dependent.

**yyyy-mm-dd template**

This "yyyy-mm-dd" (for lack of a better term) format is much more commonly used
in the general computing world, from spreadsheets to desktop environment clocks.
And this format is probably older than strftime. The template is more intuitive
to use for people as it gives a clear picture of how wide each component (and
the whole string) will be.

There are some modules you can use to format dates using this style. First of
all there's <pm:Date::Formatter>. I find its API a little bit annoying, from the
verbose date component key names and inconsistent usage of plurals, to having to
use a separate method to "create the formatter" first.

**PHP**

PHP decided to invent its own date template format. Its `date()` function
accepts template string in which you specify single letter conversions like `Y'
(for 4-digit year), `y` (2-digit year), and so on. Some of the letters mean the
same like their counterpart in strftime, but some are different (examples: `i`,

lib/Acme/CPANModules/FormattingDate.pm  view on Meta::CPAN

=head1 VERSION

This document describes version 0.002 of Acme::CPANModules::FormattingDate (from Perl distribution Acme-CPANModules-FormattingDate), released on 2023-10-29.

=head1 DESCRIPTION

B<Overview>

Date formatting modules can be categorized by their expected input format and
the formatting styles.

Input format: Some modules accept date in the form of Unix epoch (an integer),
or a list of integer produced by running the epoch through the builtin gmtime()
or localtime() function. Some others might expect the date as L<DateTime>
object. For formatting style: there's strftime in the L<POSIX> core module,
and then there's the others.

This list is organized using the latter criteria (formatting style).

B<strftime (and variants)>

The L<POSIX> module provides the C<strftime()> routine which lets you format
using a template string containing sprintf-style conversions like C<%Y> (for
4-digit year), C<%m> (2-digit month number from 1-12), and so on. There's also
L<Date::strftimeq> which provides an extension to this.

You can actually add some modifiers for the conversions to set
width/zero-padding/alignment, like you can do with sprintf (e.g. C<%03d>
supposing you want 3-digit day of month numbers). But this feature is
platform-dependent.

B<yyyy-mm-dd template>

This "yyyy-mm-dd" (for lack of a better term) format is much more commonly used
in the general computing world, from spreadsheets to desktop environment clocks.
And this format is probably older than strftime. The template is more intuitive
to use for people as it gives a clear picture of how wide each component (and
the whole string) will be.

There are some modules you can use to format dates using this style. First of
all there's L<Date::Formatter>. I find its API a little bit annoying, from the
verbose date component key names and inconsistent usage of plurals, to having to
use a separate method to "create the formatter" first.

B<PHP>

PHP decided to invent its own date template format. Its C<date()> function
accepts template string in which you specify single letter conversions like C<Y'
(for 4-digit year),>yC<(2-digit year), and so on. Some of the letters mean the
same like their counterpart in strftime, but some are different (examples:>iC<,