POSIX::strftime::Compiler3pm

Usage

    use POSIX::strftime::Compiler qw/strftime/;
    say strftime('%a, %d %b %Y %T %z',localtime):
    
    my $fmt = '%a, %d %b %Y %T %z';
    my $psc = POSIX::strftime::Compiler->new($fmt);
    say $psc->to_string(localtime);

Overview

POSIX::strftime::Compiler provides GNU C library compatible strftime(3). But this module will not affected by the system locale. This feature is useful when you want to write loggers, servers and portable applications.

For generate same result strings on any locale, POSIX::strftime::Compiler wraps POSIX::strftime and converts some format characters to perl code

Function

strftime($fmt:String, @time)

Generate formatted string from a format and time.

  my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime();
  strftime('%d/%b/%Y:%T %z',$sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst):

Compiled codes are stored in %POSIX::strftime::Compiler::STRFTIME. This function is not exported by default.

Methods

Format characters

POSIX::strftime::Compiler supports almost all characters that GNU strftime(3) supports. But %E[cCxXyY] and %O[deHImMSuUVwWy] are not supported, just remove E and O prefix.

A recommend module

Time::TZOffset

If Time::TZOffset is available, P::s::Compiler use it for more faster time zone offset calculation. I strongly recommend you to install this if you use %z.

Performance issues on windows

Windows and Cygwin and some system may not support %z and %Z. For these system, POSIX::strftime::Compiler calculate time zone offset and find zone name. This is not fast. If you need performance on Windows and Cygwin, please install Time::TZOffset