NAME<\/a> Data::Dump::Filtered \u2212 Pretty printing with filtering<\/p>\n The following functions are provided: This registers a filter function to be used by the regular Data::Dump::dump()<\/b> function. By default no filters are active.<\/p>\n Since registering filters has a global effect is might be more appropriate to use the dump_filtered()<\/b> function instead.<\/p>\n remove_dump_filter( &filter )<\/p>\n Unregister the given callback function as filter callback. This undoes the effect of add_filter.<\/p>\n dump_filtered(…, &filter )<\/p>\n Works like Data::Dump::dump()<\/b>, but the last argument should be a filter callback function. As objects are visited the filter callback is invoked at it might influence how objects are dumped.<\/p>\n Any filters registered with add_filter()<\/b> are ignored when this interface is invoked. Actually, passing “undef” as &filter is allowed and “dump_filtered(…, undef)” is the official way to force unfiltered dumps.<\/p>\n Filter callback<\/b> sub filter_callback { If the filter callback returns “undef” (or nothing) then normal processing and formatting of the visited object happens. If the filter callback returns a hash it might replace or annotate the representation of the current object.<\/p>\n Filter context<\/b> Alternative way to obtain a reference to the current object<\/p>\n $ctx\u2212>class<\/p>\n If the object is blessed this return the class. Returns “” for objects not blessed.<\/p>\n $ctx\u2212>reftype<\/p>\n Returns what kind of object this is. It\u2019s a string like ” SCALAR”, “ARRAY”, “HASH”, “CODE”,…<\/small><\/p>\n $ctx\u2212>is_ref<\/p>\n Returns true if a reference was provided.<\/p>\n $ctx\u2212>is_blessed<\/p>\n Returns true if the object is blessed. Actually, this is just an alias for “$ctx\u2212>class”.<\/p>\n $ctx\u2212>is_array<\/p>\n Returns true if the object is an array<\/p>\n $ctx\u2212>is_hash<\/p>\n Returns true if the object is a hash<\/p>\n $ctx\u2212>is_scalar<\/p>\n Returns true if the object is a scalar (a string or a number)<\/p>\n $ctx\u2212>is_code<\/p>\n Returns true if the object is a function (aka subroutine)<\/p>\n $ctx\u2212>container_class<\/p>\n Returns the class of the innermost container that contains this object. Returns “” if there is no blessed container.<\/p>\n $ctx\u2212>container_self<\/p>\n Returns an textual expression relative to the container object that names this object. The variable $self in this expression is the container itself.<\/p>\n $ctx\u2212>object_isa( $class )<\/p>\n Returns TRUE<\/small> if the current object is of the given class or is of a subclass.<\/p>\n $ctx\u2212>container_isa( $class )<\/p>\n Returns TRUE<\/small> if the innermost container is of the given class or is of a subclass.<\/p>\n $ctx\u2212>depth<\/p>\n Returns how many levels deep have we recursed into the structure (from the original dump_filtered()<\/b> arguments).<\/p>\n $ctx\u2212>expr Returns an textual expression that denotes the current object. In the expression $var is used as the name of the top level object dumped. This can be overridden by providing a different name as argument.<\/p>\n Filter return hash<\/b> incorporate the given string as the representation for the current value<\/p>\n object => $value<\/p>\n dump the given value instead of the one visited and passed in as $object. Basically the same as specifying “dump => Data::Dump::dump($value)”.<\/p>\n comment => $comment<\/p>\n prefix the value with the given comment string<\/p>\n bless => $class<\/p>\n make it look as if the current object is of the given $class instead of the class it really has (if any). The internals of the object is dumped in the regular way. The $class can be the empty string to make Data::Dump pretend the object wasn\u2019t blessed at all.<\/p>\n hide_keys => [\u2019key1\u2019, \u2019key2\u2019,…] If the $object is a hash dump is as normal but pretend that the listed keys did not exist. If the argument is a function then the function is called to determine if the given key should be hidden.<\/p>\n Data::Dump<\/p>\n Data::Dump::Filtered \u2212 Pretty printing with filtering <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3110,3007],"class_list":["post-6736","post","type-post","status-publish","format-standard","hentry","category-sin-categoria","tag-datadumpfiltered","tag-man3"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/6736","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=6736"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/6736\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=6736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=6736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=6736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
DESCRIPTION<\/a>
SEE ALSO<\/a> <\/p>\n
\nNAME <\/a> <\/h2>\n
DESCRIPTION <\/a> <\/h2>\n
add_dump_filter( &filter )<\/p>\n
A filter callback is a function that will be invoked with 2 arguments; a context object and reference to the object currently visited. The return value should either be a hash reference or “undef”.<\/p>\n
my($ctx, $object_ref) = @_;
…
return { … }
}<\/p>\n
The context object provide methods that can be used to determine what kind of object is currently visited and where it\u2019s located. The context object has the following interface:
$ctx\u2212>object_ref<\/p>\n
$ctx\u2212>expr( $top_level_name )<\/p>\n
The following elements has significance in the returned hash:
dump => $string<\/p>\n
hide_keys => &code<\/p>\nSEE ALSO <\/a> <\/h2>\n
\n","protected":false},"excerpt":{"rendered":"