Mail::Box::Search::Grep - select messages within a mail box like grep does

DIAGNOSTICS
REFERENCES
COPYRIGHTS

NAME

Mail::Box::Search::Grep - select messages within a mail box like grep does

INHERITANCE

 Mail::Box::Search::Grep
   is a Mail::Box::Search
   is a Mail::Reporter

SYNOPSIS

 use Mail::Box::Manager;
 my $mgr    = Mail::Box::Manager->new;
 my $folder = $mgr->open('Inbox');

 my $filter = Mail::Box::Search::Grep->new
    ( label => 'selected'
    , in => 'BODY', match => qr/abc?d*e/
    );

 my @msgs   = $filter->search($folder);

 my $filter = Mail::Box::Search::Grep->new
   ( field => 'To'
   , match => $my_email
   );

 if($filter->search($message)) {...}

DESCRIPTION

Try to find some text strings in the header and footer of messages. Various ways to limit the search to certain header fields, the whole header, only the body, the whole message, but even binary multiparts, are provided for.

The name grep is derived from the UNIX tool grep, which means: ``Get Regular Expression and Print''. Although you can search using regular expressions (the Perl way of them), you do not have to print those as result.

METHODS

Constructors

Mail::Box::Search::Grep->new(OPTIONS)

Create a UNIX-grep like search filter.

 Option      Defined in       Default                         
 binaries    L<Mail::Box::Search>  <false>                         
 decode      L<Mail::Box::Search>  <true>                          
 delayed     L<Mail::Box::Search>  <true>                          
 deleted     L<Mail::Box::Search>  <false>                         
 deliver                      undef                           
 field                        undef                           
 in          L<Mail::Box::Search>  <$field ? C<'HEAD'> : C<'BODY'>>
 label       L<Mail::Box::Search>  undef                           
 limit       L<Mail::Box::Search>  C<0>                            
 log         L<Mail::Reporter>  C<'WARNINGS'>                   
 logical     L<Mail::Box::Search>  C<'REPLACE'>                    
 match                        <required>                      
 multiparts  L<Mail::Box::Search>  <true>                          
 trace       L<Mail::Reporter>  C<'WARNINGS'>

. binaries BOOLEAN

. decode BOOLEAN

. delayed BOOLEAN

. deleted BOOLEAN

Store the details about where the match was found. The search may take much longer when this feature is enabled.

When an ARRAY is specified it will contain a list of references to hashes. Each hash contains the information of one match. A match in a header line will result in a line with fields message, part, and field, where the field is a Mail::Message::Field object. When the match is in the body the hash will contain a message, part, linenr, and line.

In case of a CODE reference, that routine is called for each match. The first argument is this search object and the second a reference to same hash as would be stored in the array.

The PRINT will call printMatchedHead() or printMatchedBody() when any matching header resp body line was found. The output is minimized by not reprinting the message info on multiple matches in the same message.

DELETE will flag the message to be deleted in case of a match. When a multipart's part is matched, the whole message will be flagged for deletion.

. field undef|STRING|REGEX|CODE

Not valid in combination with in set to BODY. The STRING is one full field name (case-insensitive). Use a REGEX to select more than one header line to be scanned. CODE is a routine which is called for each field in the header. The CODE is called with the header as first, and the field as second argument. If the CODE returns true, the message is selected.

. in 'HEAD'|'BODY'|'MESSAGE'

. label STRING

. limit NUMBER

. log LEVEL

. logical 'REPLACE'|'AND'|'OR'|'NOT'|'AND NOT'|'OR NOT'

. match STRING|REGEX|CODE

The pattern to be search for can be a REGular EXpression, or a STRING. In both cases, the match succeeds if it is found anywhere within the selected fields.

With a CODE reference, that function will be called each field or body-line. When the result is true, the details are delivered. The call formats are

 $code->($head, $field);          # for HEAD searches
 $code->($body, $linenr, $line);  # for BODY searches

The $head resp $body are one message's head resp. body object. The $field is a header line which matches. The $line and $linenr tell the matching line in the body.

Be warned that when you search in MESSAGE the code must accept both formats.

. multiparts BOOLEAN

. trace LEVEL

Searching

$obj->inBody(PART, BODY)

See Searching in the Mail::Box::Search manpage

$obj->inHead(PART, HEAD)

See Searching in the Mail::Box::Search manpage

$obj->search(FOLDER|THREAD|MESSAGE|ARRAY-OF-MESSAGES)

See Searching in the Mail::Box::Search manpage

$obj->searchPart(PART)

See Searching in the Mail::Box::Search manpage

The Results

$obj->printMatch([FILEHANDLE], HASH)

See The Results in the Mail::Box::Search manpage

$obj->printMatchedBody(FILEHANDLE, MATCH)

$obj->printMatchedHead(FILEHANDLE, MATCH)

Error handling

$obj->AUTOLOAD

See Error handling in the Mail::Reporter manpage

$obj->addReport(OBJECT)

See Error handling in the Mail::Reporter manpage

$obj->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

Mail::Box::Search::Grep->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

See Error handling in the Mail::Reporter manpage

$obj->errors

See Error handling in the Mail::Reporter manpage

$obj->log([LEVEL [,STRINGS]])

Mail::Box::Search::Grep->log([LEVEL [,STRINGS]])

See Error handling in the Mail::Reporter manpage

$obj->logPriority(LEVEL)

Mail::Box::Search::Grep->logPriority(LEVEL)

See Error handling in the Mail::Reporter manpage

$obj->logSettings

See Error handling in the Mail::Reporter manpage

$obj->notImplemented

See Error handling in the Mail::Reporter manpage

$obj->report([LEVEL])

See Error handling in the Mail::Reporter manpage

$obj->reportAll([LEVEL])

See Error handling in the Mail::Reporter manpage

$obj->trace([LEVEL])

See Error handling in the Mail::Reporter manpage

$obj->warnings

See Error handling in the Mail::Reporter manpage

Cleanup

$obj->DESTROY

See Cleanup in the Mail::Reporter manpage

$obj->inGlobalDestruction

See Cleanup in the Mail::Reporter manpage

DIAGNOSTICS

Error: Package $package does not implement $method.

Fatal error: the specific package (or one of its superclasses) does not implement this method where it should. This message means that some other related classes do implement this method however the class at hand does not. Probably you should investigate this and probably inform the author of the package.

REFERENCES

See the MailBox website at http://perl.overmeer.net/mailbox/ for more details.

COPYRIGHTS

Distribution version 2.059. Written by Mark Overmeer (mark@overmeer.net) See the ChangeLog for other contributors.

Mail::Box::Search::Grep - select messages within a mail box like grep does