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# Log::Message::Simple

Perl 5 version 10.1 documentation
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# Log::Message::Simple

- NAME
- SYNOPSIS
- DESCRIPTION
- FUNCTIONS
  - msg("message string" [,VERBOSE])
  - debug("message string" [,VERBOSE])
  - error("error string" [,VERBOSE])
  - carp();
  - croak();
  - confess();
  - cluck();
- CLASS METHODS
  - Log::Message::Simple->stack()
  - Log::Message::Simple->stack_as_string([TRACE])
  - Log::Message::Simple->flush()
- GLOBAL VARIABLES

# NAME

Log::Message::Simple

# SYNOPSIS

        use Log::Message::Simple qw[msg error debug                                carp croak cluck confess];    use Log::Message::Simple qw[:STD :CARP];    ### standard reporting functionality    msg(    "Connecting to database",           $verbose );    error(  "Database connection failed: $@",   $verbose );    debug(  "Connection arguments were: $args", $debug );    ### standard carp functionality    carp(   "Wrong arguments passed: @_" );    croak(  "Fatal: wrong arguments passed: @_" );    cluck(  "Wrong arguments passed -- including stacktrace: @_" );    confess("Fatal: wrong arguments passed -- including stacktrace: @_" );    ### retrieve individual message    my @stack = Log::Message::Simple->stack;    my @stack = Log::Message::Simple->flush;    ### retrieve the entire stack in printable form    my $msgs  = Log::Message::Simple->stack_as_string;    my $trace = Log::Message::Simple->stack_as_string(1);    ### redirect output    local $Log::Message::Simple::MSG_FH     = \*STDERR;    local $Log::Message::Simple::ERROR_FH   = \*STDERR;    local $Log::Message::Simple::DEBUG_FH   = \*STDERR;        ### force a stacktrace on error    local $Log::Message::Simple::STACKTRACE_ON_ERROR = 1

# DESCRIPTION

This module provides standardized logging facilities using the `Log::Message` module.

# FUNCTIONS

## msg("message string" [,VERBOSE])

Records a message on the stack, and prints it to `STDOUT` (or actually `$MSG_FH` , see the `GLOBAL VARIABLES` section below), if the `VERBOSE` option is true. The `VERBOSE` option defaults to false.

Exported by default, or using the `:STD` tag.

## debug("message string" [,VERBOSE])

Records a debug message on the stack, and prints it to `STDOUT` (or actually `$DEBUG_FH` , see the `GLOBAL VARIABLES` section below), if the `VERBOSE` option is true. The `VERBOSE` option defaults to false.

Exported by default, or using the `:STD` tag.

## error("error string" [,VERBOSE])

Records an error on the stack, and prints it to `STDERR` (or actually `$ERROR_FH` , see the `GLOBAL VARIABLES` sections below), if the `VERBOSE` option is true. The `VERBOSE` options defaults to true.

Exported by default, or using the `:STD` tag.

## carp();

Provides functionality equal to `Carp::carp()` while still logging to the stack.

Exported by using the `:CARP` tag.

## croak();

Provides functionality equal to `Carp::croak()` while still logging to the stack.

Exported by using the `:CARP` tag.

## confess();

Provides functionality equal to `Carp::confess()` while still logging to the stack.

Exported by using the `:CARP` tag.

## cluck();

Provides functionality equal to `Carp::cluck()` while still logging to the stack.

Exported by using the `:CARP` tag.

# CLASS METHODS

## Log::Message::Simple->stack()

Retrieves all the items on the stack. Since `Log::Message::Simple` is implemented using `Log::Message` , consult its manpage for the function `retrieve` to see what is returned and how to use the items.

## Log::Message::Simple->stack_as_string([TRACE])

Returns the whole stack as a printable string. If the `TRACE` option is true all items are returned with `Carp::longmess` output, rather than just the message. `TRACE` defaults to false.

## Log::Message::Simple->flush()

Removes all the items from the stack and returns them. Since `Log::Message::Simple` is implemented using `Log::Message` , consult its manpage for the function `retrieve` to see what is returned and how to use the items.

# GLOBAL VARIABLES

- $ERROR_FH

  This is the filehandle all the messages sent to `error()` are being printed. This defaults to `*STDERR` .

- $MSG_FH

  This is the filehandle all the messages sent to `msg()` are being printed. This default to `*STDOUT` .

- $DEBUG_FH

  This is the filehandle all the messages sent to `debug()` are being printed. This default to `*STDOUT` .

- $STACKTRACE_ON_ERROR

  If this option is set to `true` , every call to `error()` will generate a stacktrace using `Carp::shortmess()` . Defaults to `false`

Page index

- NAME
- SYNOPSIS
- DESCRIPTION
- FUNCTIONS
  - msg("message string" [,VERBOSE])
  - debug("message string" [,VERBOSE])
  - error("error string" [,VERBOSE])
  - carp();
  - croak();
  - confess();
  - cluck();
- CLASS METHODS
  - Log::Message::Simple->stack()
  - Log::Message::Simple->stack_as_string([TRACE])
  - Log::Message::Simple->flush()
- GLOBAL VARIABLES

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