Class: Lutaml::Xml::Decisions::Rules::ElementFormDefaultUnqualifiedRule

Inherits:
DecisionRule
  • Object
show all
Defined in:
lib/lutaml/xml/decisions/rules/element_form_default_unqualified_rule.rb

Overview

Priority 0.45: Element form default unqualified

When namespace has element_form_default :unqualified, local elements should NOT be namespace-qualified in the instance document. This means:

  • If parent uses prefix format: child should have no xmlns attribute (blank namespace)

  • If parent uses default format: child should have xmlns=“” (explicit blank)

This rule runs AFTER InheritFromParentRule (Priority 0) but BEFORE HoistedOnParentRule (Priority 0.5), ensuring that element_form_default takes precedence over parent’s hoisting decisions.

W3C COMPLIANCE: elementFormDefault=“unqualified” means local elements appear without namespace prefix in instance documents.

Example: Schema: elementFormDefault=“unqualified” Instance: <gc:CodeList xmlns:gc=“uri”><Identification><ShortName>…</ShortName></Identification></gc:CodeList> Note: child elements have NO xmlns attribute (blank namespace)

Instance Method Summary collapse

Methods inherited from DecisionRule

#<=>, #name

Instance Method Details

#applies?(context) ⇒ Boolean

Applies when:

  1. Element has a namespace

  2. Namespace has element_form_default EXPLICITLY set to :unqualified

  3. Parent uses prefix format (otherwise InheritFromParentRule handles it)

Returns:

  • (Boolean) 


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# File 'lib/lutaml/xml/decisions/rules/element_form_default_unqualified_rule.rb', line 37

def applies?(context)
  return false unless context.has_namespace?

  ns_class = context.namespace_class
  return false unless ns_class

  # Check if namespace has element_form_default EXPLICITLY set to :unqualified
  # CRITICAL: Only applies when explicitly set, not when defaulted to :unqualified
  return false unless ns_class.element_form_default_set?
  return false unless ns_class.element_form_default == :unqualified

  # This rule only applies when parent uses prefix format
  # If parent uses default format, InheritFromParentRule handles it
  return false unless context.parent_format == :prefix

  # Only apply if no explicit form option on the element
  # ElementFormOptionRule (Priority -0.5) handles explicit form options
  return false if context.element.respond_to?(:form) && !context.element.form.nil?

  true
end

#decide(context) ⇒ Object

Decision: Blank namespace (no xmlns attribute) When parent uses prefix format, child should be in blank namespace to opt out of inheriting any namespace. This results in no xmlns attribute on the child element.



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# File 'lib/lutaml/xml/decisions/rules/element_form_default_unqualified_rule.rb', line 63

def decide(context)
  Decision.blank(
    namespace_class: context.namespace_class,
    reason: "Priority 0.45: element_form_default :unqualified - blank namespace (no xmlns)",
  )
end

#priority ⇒ Object

Priority 0.45 (between InheritFromParentRule 0 and HoistedOnParentRule 0.5)



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# File 'lib/lutaml/xml/decisions/rules/element_form_default_unqualified_rule.rb', line 29

def priority
  0.45
end