YAML::P...structor(3)

💖 YAML::P...structor(3) 💖

Okay so this is the YAML::P...structor(3) page from the User Contributed Perl Documentation, and the actual module is YAML::PP::Constructor — yes bestie, the title is doing its truncated little thing but we move 💅.

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🌸 NAME 🌸

YAML::PP::Constructor — constructing data structure from parsing events ✨

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🎀 METHODS 🎀

💅 new — the Constructor constructor

Build one like this, no cap:

my $constructor = YAML::PP::Constructor->new(
    schema => $schema,
    cyclic_refs => $cyclic_refs,
);

🧚 init

Resets any data being used during construction. Iconic reset behavior:

$constructor->init;

🦋 Event methods

These methods are called from YAML::PP::Parser:

$constructor->document_start_event($event);

The whole event squad is document_start_event, document_end_event, mapping_start_event, mapping_end_event, sequence_start_event, sequence_end_event, scalar_event, alias_event, stream_start_event, and stream_end_event 💖.

🌈 Helper method pairs

• anchors, set_anchors — helper for storing anchors during construction 🎀
• docs, set_docs — helper for storing resulting documents during construction 📄
• stack, set_stack — helper for storing data during construction 🧺
• cyclic_refs, set_cyclic_refs — option for controlling the behaviour when finding circular references 🌀
• schema, set_schema — holds a YAML::PP::Schema object 👑

🍓 stringify_complex

When constructing a hash and getting a non-scalar key, this method is used to stringify the key. It uses a terse Data::Dumper output. Other modules, like YAML::XS, use the default stringification, ARRAY(0x55617c0c7398) for example. Literally the key-glow-up moment 💅.

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Signed off with perl v5.42.0, dated 2026-04-24, and filed under YAML::P...structor(3) 🫶✨