datum_strip (1)

 use Carp::Datum::Strip qw(datum_strip);

 datum_strip("-", "-");
 datum_strip($file, "$file.new", ".bak");

This module exports a single routine, datum_strip(), whose purpose is to remove calls to \*(C`Carp::Datum\*(C' routines lexically.

Because stripping is done lexically, there are some restrictions about what is actually supported. Unless the conventions documented in Carp::Datum are followed, stripping will be incorrect.

The general guidelines are:

• Do not use here documents or generalized quotes (qq) within assertion expression or tags. Write assertions using '' or "", as appropriate.

• Assertions can be safely put on several lines, but must end with a semi-colon, outside any string.

There are two calls that will never be stripped: \s-1VERIFY\s0() and \s-1DTRACE\s0(). The \s-1VERIFY\s0() is meant to be preserved (or \*(C`DREQUIRE\*(C' would have been used). \*(C`DTRACE\*(C', when called, will be remapped dynamically to some \*(C`Log::Agent\*(C' routine, depending on the trace level. See Carp::Datum for details.

The interface of the datum_strip() routine is: The old_file specifies the old file path, the one to be stripped. The stripped version will be written to new_file. If the optional third argument ext is given (e.g. \*(L".bak\*(R"), then old_file will be renamed with the supplied extension, and new_file will be renamed old_file. Renaming only occurs if stripping was successful (i.e. the new file was correctly written to disk). The lowest nine \*(L"rwx\*(R" mode bits from old_file are preserved when creating new_file. Both old_file and new_file can be set to \*(L"-\*(R", in which case \s-1STDIN\s0 and \s-1STDOUT\s0 are used, respectively, and no renaming can occur, nor any mode bit propagation. Returns true on success, \*(C`undef\*(C' on error.

Christophe Dehaudt and Raphael Manfredi are the original authors.

Send bug reports, hints, tips, suggestions to Dave Hoover at <[email protected]>.

Carp::Datum\|(3).