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52 lines
1.4 KiB
Perl
52 lines
1.4 KiB
Perl
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package Carp;
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our $VERSION = '1.11';
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# this file is an utra-lightweight stub. The first time a function is
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# called, Carp::Heavy is loaded, and the real short/longmessmess_jmp
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# subs are installed
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our $MaxEvalLen = 0;
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our $Verbose = 0;
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our $CarpLevel = 0;
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our $MaxArgLen = 64; # How much of each argument to print. 0 = all.
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our $MaxArgNums = 8; # How many arguments to print. 0 = all.
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require Exporter;
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our @ISA = ('Exporter');
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our @EXPORT = qw(confess croak carp);
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our @EXPORT_OK = qw(cluck verbose longmess shortmess);
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our @EXPORT_FAIL = qw(verbose); # hook to enable verbose mode
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# if the caller specifies verbose usage ("perl -MCarp=verbose script.pl")
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# then the following method will be called by the Exporter which knows
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# to do this thanks to @EXPORT_FAIL, above. $_[1] will contain the word
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# 'verbose'.
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sub export_fail { shift; $Verbose = shift if $_[0] eq 'verbose'; @_ }
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# fixed hooks for stashes to point to
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sub longmess { goto &longmess_jmp }
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sub shortmess { goto &shortmess_jmp }
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# these two are replaced when Carp::Heavy is loaded
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sub longmess_jmp {
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local($@, $!);
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eval { require Carp::Heavy };
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return $@ if $@;
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goto &longmess_real;
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}
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sub shortmess_jmp {
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local($@, $!);
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eval { require Carp::Heavy };
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return $@ if $@;
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goto &shortmess_real;
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}
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sub croak { die shortmess @_ }
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sub confess { die longmess @_ }
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sub carp { warn shortmess @_ }
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sub cluck { warn longmess @_ }
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1;
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__END__
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