1No::Worries::Die(3)   User Contributed Perl Documentation  No::Worries::Die(3)
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NAME

6       No::Worries::Die - error handling without worries
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SYNOPSIS

9         use No::Worries::Die qw(dief handler);
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11         open($fh, "<", $path) or dief("cannot open(%s): %s", $path, $!);
12         ... not reached in case of failure ...
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14         $ ./myprog
15         myprog: cannot open(foo): No such file or directory
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17         $ NO_WORRIES=confess ./myprog
18         myprog: cannot open(foo): No such file or directory at myprog line 16
19             main::test() called at ./myprog line 19
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DESCRIPTION

22       This module eases error handling by providing a convenient wrapper
23       around die() with sprintf()-like API. dief() is to die() what printf()
24       is to print() with, in addition, the trimming of leading and trailing
25       spaces.
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27       It also provides a handler for die() that prepends a prefix
28       ($No::Worries::Die::Prefix) to all errors. It also uses the
29       "NO_WORRIES" environment variable to find out if Carp's croak() or
30       confess() should be used instead of die(). Finally, the wrapper can be
31       told to also log errors to syslog (see $No::Worries::Die::Syslog).
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33       This handler can be installed simply by importing it:
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35         use No::Worries::Die qw(dief handler);
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37       Alternatively, it can be installed "manually":
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39         use No::Worries::Die qw(dief);
40         $SIG{__DIE__} = \&No::Worries::Die::handler;
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FUNCTIONS

43       This module provides the following functions (none of them being
44       exported by default):
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46       dief(MESSAGE)
47           report an error described by the given MESSAGE
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49       dief(FORMAT, ARGUMENTS...)
50           idem but with sprintf()-like API
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52       handler(MESSAGE)
53           $SIG{__DIE__} compatible error handler (this function cannot be
54           imported)
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GLOBAL VARIABLES

57       This module uses the following global variables (none of them being
58       exported):
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60       $Prefix
61           prefix to prepend to all errors (default: the program name)
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63       $Syslog
64           true if errors should also be sent to syslog using
65           No::Worries::Syslog's syslog_error() (default: false)
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ENVIRONMENT VARIABLES

68       This module uses the "NO_WORRIES" environment variable to control how
69       errors should be reported. Supported values are:
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71       "croak"
72           Carp's croak() will be used instead of die()
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74       "confess"
75           Carp's confess() will be used instead of die()
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SEE ALSO

78       Carp, No::Worries, No::Worries::Syslog, No::Worries::Warn.
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AUTHOR

81       Lionel Cons <http://cern.ch/lionel.cons>
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83       Copyright (C) CERN 2012-2019
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87perl v5.34.0                      2022-01-21               No::Worries::Die(3)
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