This software allows callers to report errors from the perspective of a group of connected modules, known as a "clan". It provides a streamlined approach to identifying and addressing issues, improving efficiency and user experience.
Carp::Clan is a Perl module that is based on the "Carp.pm" module from Perl 5.005_03. However, it has been altered to skip all package names that match a user-defined pattern provided in the "use" statement. This pattern is defined inside the "qw()" term, which is used as an argument list.
The module is particularly useful if you have a family of modules or classes (e.g., Pack::A, Pack::B, etc.), and each of these modules uses "Carp::Clan qw(^Pack::);" where the error or warning gets raised. By doing this, the exception raised in a lower-level module (e.g., Pack::B) will appear to have originated in the top-level script (e.g., tool.pl). This makes it easier to understand where the error is coming from, and who is responsible for it.
The advantage of using the "clan" feature is that a family of modules can work together and call each other, and still appear as a single module from the perspective of the caller. This makes it easier to diagnose and fix errors as they occur.
If you want to disable all error messages from the module where you "use Carp::Clan," you can do so by not providing a pattern. The module will automatically provide the correct pattern for you to use. However, you only need to provide a pattern if you want to make several modules work together and appear as though they were only one.
As a debugging aid, you can force Carp::Clan to treat a "croak" as a "confess" and a "carp" as a "cluck". This will force a detailed stack trace to be given, which can be very helpful when trying to understand why, or from where, a warning or error is being generated. To enable this feature, you can either "import" the non-existent symbol 'verbose,' or by setting the global variable "$Carp::Clan::Verbose" to a true value.
In summary, Carp::Clan is a useful Perl module that enables the skipping of package names based on user-defined patterns. It is particularly useful for debugging and diagnosing errors in a family of modules or classes. The module also has a feature that enables a detailed stack trace to be provided in case of errors or warnings. The module is easy to use and is ideal for both beginners and experienced Perl developers.
The module is particularly useful if you have a family of modules or classes (e.g., Pack::A, Pack::B, etc.), and each of these modules uses "Carp::Clan qw(^Pack::);" where the error or warning gets raised. By doing this, the exception raised in a lower-level module (e.g., Pack::B) will appear to have originated in the top-level script (e.g., tool.pl). This makes it easier to understand where the error is coming from, and who is responsible for it.
The advantage of using the "clan" feature is that a family of modules can work together and call each other, and still appear as a single module from the perspective of the caller. This makes it easier to diagnose and fix errors as they occur.
If you want to disable all error messages from the module where you "use Carp::Clan," you can do so by not providing a pattern. The module will automatically provide the correct pattern for you to use. However, you only need to provide a pattern if you want to make several modules work together and appear as though they were only one.
As a debugging aid, you can force Carp::Clan to treat a "croak" as a "confess" and a "carp" as a "cluck". This will force a detailed stack trace to be given, which can be very helpful when trying to understand why, or from where, a warning or error is being generated. To enable this feature, you can either "import" the non-existent symbol 'verbose,' or by setting the global variable "$Carp::Clan::Verbose" to a true value.
In summary, Carp::Clan is a useful Perl module that enables the skipping of package names based on user-defined patterns. It is particularly useful for debugging and diagnosing errors in a family of modules or classes. The module also has a feature that enables a detailed stack trace to be provided in case of errors or warnings. The module is easy to use and is ideal for both beginners and experienced Perl developers.
What's New
Version 6.04: N/A