Custom liquid drop methods

[suleman-uzair]

This PR updates existing liquid drop methods, and documentation.

related to metanorma/metanorma-plugin-lutaml#251

[Copilot]

Pull request overview

This PR enhances the Liquid template integration by adding new liquid drop methods and comprehensive test coverage across XSD components. It also migrates from the xml-c14n gem to canon for XML canonicalization.

Key changes include:

• Added sorting methods for schema elements, complex types, and attribute groups
• Enhanced Base class with type checking predicates and cardinality methods
• Added direct_child_elements, base_type, and referenced_object methods across various components
• Created comprehensive test suites for all liquid method modules

Reviewed changes

Copilot reviewed 27 out of 27 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
lutaml-xsd.gemspec	Added canon gem as runtime dependency (version 0.1.3)
Gemfile	Removed canon and xml-c14n from development dependencies (now in gemspec)
spec/spec_helper.rb	Updated to use canon gem instead of xml-c14n for XML formatting
spec/lutaml/xsd_spec.rb	Refactored regex constants into reusable SCHEMA_ELEMENTS_REGEXES constant
lib/lutaml/xsd/base.rb	Added type checking methods, cardinality methods, and safe navigation to resolved_element_order
lib/lutaml/xsd/schema.rb	Added liquid methods for sorted access to elements, complex types, and attribute groups
lib/lutaml/xsd/simple_content.rb	Added base_type liquid mapping
lib/lutaml/xsd/complex_type.rb	Added direct_child_elements liquid mapping
lib/lutaml/xsd/liquid_methods/schema.rb	New file implementing sorting methods for schema collections
lib/lutaml/xsd/liquid_methods/simple_content.rb	Added base_type method to retrieve base from various sources
lib/lutaml/xsd/liquid_methods/sequence.rb	Changed Xsd::Element to Element (introduces bug)
lib/lutaml/xsd/liquid_methods/group.rb	Added referenced_object method and fixed child_elements to use referenced group
lib/lutaml/xsd/liquid_methods/element.rb	Removed min_occurrences and max_occurrences (moved to Base), added safe navigation for attributes/child_elements
lib/lutaml/xsd/liquid_methods/complex_type.rb	Added direct_child_elements method, changed flat_map to each for attribute accumulation
lib/lutaml/xsd/liquid_methods/attribute_group.rb	Fixed referenced_object logic and added safe navigation to find_used_by
README.adoc	Comprehensive documentation updates for new methods and reorganized Base class methods section
spec/lutaml/xsd/liquid_methods/*.rb	Added 8 new comprehensive test files covering all liquid method modules
.rubocop_todo.yml	Updated generated timestamp and BlockLength max from 30 to 108

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[ronaldtse]

We need to move this content to lutaml-model since XSD parsing functionality has moved there.

[suleman-uzair]

We need to move this content to lutaml-model since XSD parsing functionality has moved there.

@ronaldtse, I’ve moved this functionality to lutaml/lutaml-model#626. I’ll let you know once it’s finalized.

[ronaldtse]

Thanks @suleman-uzair !

[ronaldtse]

We need to move this content to lutaml-model since XSD parsing functionality has moved there.

@ronaldtse, I’ve moved this functionality to lutaml/lutaml-model#626. I’ll let you know once it’s finalized.

lutaml/lutaml-model#626 is merged now, closing this. Thanks @suleman-uzair !