Module: Canon::DiffFormatter::DiffDetailFormatterHelpers::DimensionFormatter

Defined in:
lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb

Overview

Dimension-specific formatting

Formats details for specific comparison dimensions.

Class Method Summary collapse

Class Method Details

.build_structure_change_text(display1, display2, use_color) ⇒ String

Build human-readable change text for element structure diffs

Parameters:

  • display1 (String) —

    Serialized expected element

  • display2 (String) —

    Serialized actual element

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (String) —

    Change description



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 225

def self.build_structure_change_text(display1, display2, use_color)
  "Element structure changed: " \
    "#{ColorHelper.colorize(display1, :red, use_color)} → " \
    "#{ColorHelper.colorize(display2, :green, use_color)}"
end

.extract_dimension(diff) ⇒ Symbol

Extract dimension from diff

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

Returns:

  • (Symbol) —

    Dimension



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 579

def self.extract_dimension(diff)
  if diff.respond_to?(:dimension)
    diff.dimension
  elsif diff.is_a?(Hash)
    diff[:dimension] || diff[:diff_code] || :unknown
  else
    :unknown
  end
end

.extract_namespace_declarations_from_node(node) ⇒ Hash

Extract namespace declarations from a node

Parameters:

  • node (Object) —

    Node to extract from

Returns:

  • (Hash) —

    Namespace declarations



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 617

def self.extract_namespace_declarations_from_node(node)
  return {} unless node

  declarations = {}

  # Handle Canon::Xml::Node (uses namespace_nodes)
  if node.respond_to?(:namespace_nodes)
    node.namespace_nodes.each do |ns|
      next if ns.prefix == "xml" && ns.uri == "http://www.w3.org/XML/1998/namespace"

      prefix = ns.prefix || ""
      declarations[prefix] = ns.uri
    end
    return declarations
  end

  # Handle Nokogiri/Moxml nodes (use attributes)
  raw_attrs = node.respond_to?(:attribute_nodes) ? node.attribute_nodes : node.attributes

  if raw_attrs.is_a?(Array)
    raw_attrs.each do |attr|
      name = attr.respond_to?(:name) ? attr.name : attr.to_s
      value = attr.respond_to?(:value) ? attr.value : attr.to_s

      if namespace_declaration?(name)
        prefix = name == "xmlns" ? "" : name.split(":", 2)[1]
        declarations[prefix] = value
      end
    end
  elsif raw_attrs.respond_to?(:each)
    raw_attrs.each do |key, val|
      name = if key.is_a?(String)
               key
             else
               (key.respond_to?(:name) ? key.name : key.to_s)
             end
      value = if val.respond_to?(:value)
                val.value
              elsif val.respond_to?(:content)
                val.content
              else
                val.to_s
              end

      if namespace_declaration?(name)
        prefix = name == "xmlns" ? "" : name.split(":", 2)[1]
        declarations[prefix] = value
      end
    end
  end

  declarations
end

.extract_node1(diff) ⇒ Object

Extract node1 from diff

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

Returns:

  • (Object) —

    Node1



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 593

def self.extract_node1(diff)
  if diff.respond_to?(:node1)
    diff.node1
  elsif diff.is_a?(Hash)
    diff[:node1]
  end
end

.extract_node2(diff) ⇒ Object

Extract node2 from diff

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

Returns:

  • (Object) —

    Node2



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 605

def self.extract_node2(diff)
  if diff.respond_to?(:node2)
    diff.node2
  elsif diff.is_a?(Hash)
    diff[:node2]
  end
end

.format_attribute_order_details(diff, use_color) ⇒ Array

Format attribute order differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 330

def self.format_attribute_order_details(diff, use_color)
  require_relative "color_helper"
  require_relative "node_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  order1 = NodeUtils.get_attribute_names_in_order(node1)
  order2 = NodeUtils.get_attribute_names_in_order(node2)

  detail1 = order1.map do |a|
    ColorHelper.colorize(a, :red, use_color)
  end.join(", ")
  detail2 = order2.map do |a|
    ColorHelper.colorize(a, :green, use_color)
  end.join(", ")

  changes = "Order differs: #{ColorHelper.colorize(order1.join(', '),
                                                   :red, use_color)} → " \
            "#{ColorHelper.colorize(order2.join(', '), :green,
                                    use_color)}"

  [detail1, detail2, changes]
end

.format_attribute_presence_details(diff, use_color) ⇒ Array

Format attribute presence differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 236

def self.format_attribute_presence_details(diff, use_color)
  require_relative "color_helper"
  require_relative "node_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  attrs1 = NodeUtils.get_attribute_names(node1).sort
  attrs2 = NodeUtils.get_attribute_names(node2).sort

  missing = attrs1 - attrs2
  extra = attrs2 - attrs1

  # Format the attribute lists
  detail1 = if attrs1.empty?
              ColorHelper.colorize("(no attributes)", :red, use_color)
            else
              attrs1.map do |a|
                ColorHelper.colorize(a, :red, use_color)
              end.join(", ")
            end

  detail2 = if attrs2.empty?
              ColorHelper.colorize("(no attributes)", :green, use_color)
            else
              attrs2.map do |a|
                ColorHelper.colorize(a, :green, use_color)
              end.join(", ")
            end

  # Build changes description
  changes_parts = []
  if missing.any?
    missing_str = missing.map do |a|
      ColorHelper.colorize("-#{a}", :red, use_color)
    end.join(", ")
    changes_parts << "Missing: #{missing_str}"
  end
  if extra.any?
    extra_str = extra.map do |a|
      ColorHelper.colorize("+#{a}", :green, use_color)
    end.join(", ")
    changes_parts << "Extra: #{extra_str}"
  end

  changes = changes_parts.join(" | ")

  [detail1, detail2, changes]
end

.format_attribute_values_details(diff, use_color) ⇒ Array

Format attribute value differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 291

def self.format_attribute_values_details(diff, use_color)
  require_relative "color_helper"
  require_relative "node_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  differing = NodeUtils.find_all_differing_attributes(node1, node2)

  # Format all differing attributes
  attrs1_parts = []
  attrs2_parts = []
  changes_parts = []

  differing.each do |attr_name|
    val1 = NodeUtils.get_attribute_value(node1, attr_name)
    val2 = NodeUtils.get_attribute_value(node2, attr_name)

    attrs1_parts << "#{attr_name}=#{format_json_value(val1)}"
    attrs2_parts << "#{attr_name}=#{format_json_value(val2)}"
    changes_parts << "#{attr_name}: #{ColorHelper.colorize(
      format_json_value(val1), :red, use_color
    )} → " \
                     "#{ColorHelper.colorize(format_json_value(val2),
                                             :green, use_color)}"
  end

  detail1 = attrs1_parts.join(", ")
  detail2 = attrs2_parts.join(", ")
  changes = changes_parts.join(" | ")

  [detail1, detail2, changes]
end

.format_comments_details(diff, use_color) ⇒ Array

Format comment differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 466

def self.format_comments_details(diff, use_color)
  require_relative "color_helper"
  require_relative "node_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  text1 = NodeUtils.get_node_text(node1)
  text2 = NodeUtils.get_node_text(node2)

  detail1 = ColorHelper.colorize(format_json_value(text1), :red,
                                 use_color)
  detail2 = ColorHelper.colorize(format_json_value(text2), :green,
                                 use_color)

  changes = "Comment differs: #{detail1} → #{detail2}"

  [detail1, detail2, changes]
end

.format_dimension_details(diff, use_color, compact: false, expand_difference: false) ⇒ String

Format dimension details based on diff type

rubocop:disable Lint/UnusedMethodArgument

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

  • compact (Boolean) (defaults to: false) —

    Whether to serialize element nodes as compact XML

Returns:

  • (String) —

    Formatted dimension details



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 17

def self.format_dimension_details(diff, use_color, compact: false,
expand_difference: false)
  # rubocop:enable Lint/UnusedMethodArgument
  dimension = extract_dimension(diff)

  case dimension
  when :namespace_uri
    format_namespace_uri_details(diff, use_color)
  when :namespace_declarations
    format_namespace_declarations_details(diff, use_color)
  when :element_structure
    format_element_structure_details(diff, use_color)
  when :attribute_presence
    format_attribute_presence_details(diff, use_color)
  when :attribute_values
    format_attribute_values_details(diff, use_color)
  when :attribute_order
    format_attribute_order_details(diff, use_color)
  when :text_content
    format_text_content_details(diff, use_color, compact: compact)
  when :structural_whitespace
    format_structural_whitespace_details(diff, use_color)
  when :comments
    format_comments_details(diff, use_color)
  when :hash_diff
    format_hash_diff_details(diff, use_color)
  else
    format_fallback_details(diff, use_color, compact: compact)
  end
end

.format_element_structure_details(diff, use_color) ⇒ Array

Format element structure differences

Produces compact XML for both sides so the user can see attributes and text content, not just the tag name. Handles nil nodes that arise from insertions/deletions.

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 174

def self.format_element_structure_details(diff, use_color)
  require_relative "color_helper"
  require_relative "node_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  has1 = !node1.nil?
  has2 = !node2.nil?

  if has1 && has2
    # Both elements present — show compact XML for both
    compact1 = NodeUtils.serialize_node_compact(node1)
    compact2 = NodeUtils.serialize_node_compact(node2)
    detail1 = ColorHelper.colorize(compact1, :red, use_color)
    detail2 = ColorHelper.colorize(compact2, :green, use_color)

    name1 = NodeUtils.get_element_name_for_display(node1)
    name2 = NodeUtils.get_element_name_for_display(node2)

    changes = if name1 == name2
                "Element <#{name1}> structure changed (children differ)"
              else
                build_structure_change_text(compact1, compact2,
                                            use_color)
              end
  elsif has1
    # Element removed
    compact1 = NodeUtils.serialize_node_compact(node1)
    detail1 = ColorHelper.colorize(compact1, :red, use_color)
    detail2 = ColorHelper.colorize("(not present)", :green, use_color)
    changes = "Element removed: #{ColorHelper.colorize(compact1, :red,
                                                       use_color)}"
  else
    # Element added
    compact2 = NodeUtils.serialize_node_compact(node2)
    detail1 = ColorHelper.colorize("(not present)", :red, use_color)
    detail2 = ColorHelper.colorize(compact2, :green, use_color)
    changes = "Element added: #{ColorHelper.colorize(compact2, :green,
                                                     use_color)}"
  end

  [detail1, detail2, changes]
end

.format_fallback_details(diff, use_color, compact: false) ⇒ Array

Format fallback details for unknown dimensions

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

  • compact (Boolean) (defaults to: false) —

    Whether to serialize element nodes as compact XML

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 525

def self.format_fallback_details(diff, use_color, compact: false)
  require_relative "color_helper"
  require_relative "node_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  raw1 = if compact
           NodeUtils.node_to_display(node1,
                                     compact: true)
         else
           NodeUtils.format_node_brief(node1)
         end
  raw2 = if compact
           NodeUtils.node_to_display(node2,
                                     compact: true)
         else
           NodeUtils.format_node_brief(node2)
         end

  detail1 = ColorHelper.colorize(raw1, :red, use_color)
  detail2 = ColorHelper.colorize(raw2, :green, use_color)

  dimension = extract_dimension(diff)
  changes = "#{dimension.to_s.capitalize} differs: #{detail1} → #{detail2}"

  [detail1, detail2, changes]
end

.format_hash_diff_details(diff, use_color) ⇒ Array

Format hash differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 491

def self.format_hash_diff_details(diff, use_color)
  require_relative "color_helper"

  detail1 = if diff.is_a?(Hash) && diff[:value1]
              ColorHelper.colorize(format_json_value(diff[:value1]),
                                   :red, use_color)
            else
              ColorHelper.colorize("(no value)", :red, use_color)
            end

  detail2 = if diff.is_a?(Hash) && diff[:value2]
              ColorHelper.colorize(format_json_value(diff[:value2]),
                                   :green, use_color)
            else
              ColorHelper.colorize("(no value)", :green, use_color)
            end

  path_str = if diff.is_a?(Hash) && diff[:path]
               " at #{diff[:path]}"
             else
               ""
             end

  changes = "Value differs#{path_str}: #{detail1} → #{detail2}"

  [detail1, detail2, changes]
end

.format_json_value(value) ⇒ String

Format JSON value for display

Parameters:

  • value (Object) —

    Value to format

Returns:

  • (String) —

    Formatted value



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 558

def self.format_json_value(value)
  require "json"

  case value
  when String
    # Use JSON.generate for proper, well-tested escaping
    JSON.generate(value)
  when Numeric, TrueClass, FalseClass, NilClass
    value.to_s
  else
    # Use JSON.pretty_generate for complex types
    JSON.pretty_generate(value)
  end
rescue StandardError
  value.inspect
end

.format_namespace_declarations_details(diff, use_color) ⇒ Array

Format namespace declaration differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 87

def self.format_namespace_declarations_details(diff, use_color)
  require_relative "color_helper"
  require_relative "node_utils"
  require_relative "text_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  # Extract namespace declarations from both nodes
  ns_decls1 = extract_namespace_declarations_from_node(node1)
  ns_decls2 = extract_namespace_declarations_from_node(node2)

  element_name = NodeUtils.get_element_name_for_display(node1) || "element"

  # Format namespace declarations for display
  detail1 = if ns_decls1.empty?
              "<#{element_name}> #{ColorHelper.colorize(
                '(no namespace declarations)', :red, use_color
              )}"
            else
              ns_str = ns_decls1.map do |prefix, uri|
                attr_name = prefix.empty? ? "xmlns" : "xmlns:#{prefix}"
                "#{attr_name}=\"#{uri}\""
              end.join(" ")
              "<#{element_name}> #{ns_str}"
            end

  detail2 = if ns_decls2.empty?
              "<#{element_name}> #{ColorHelper.colorize(
                '(no namespace declarations)', :green, use_color
              )}"
            else
              ns_str = ns_decls2.map do |prefix, uri|
                attr_name = prefix.empty? ? "xmlns" : "xmlns:#{prefix}"
                "#{attr_name}=\"#{uri}\""
              end.join(" ")
              "<#{element_name}> #{ns_str}"
            end

  # Analyze changes
  missing = ns_decls1.keys - ns_decls2.keys
  extra = ns_decls2.keys - ns_decls1.keys
  changed = ns_decls1.select do |k, v|
    ns_decls2[k] && ns_decls2[k] != v
  end.keys

  # Format changes
  changes_parts = []
  if missing.any?
    missing_str = missing.map do |prefix|
      attr_name = prefix.empty? ? "xmlns" : "xmlns:#{prefix}"
      ColorHelper.colorize("-#{attr_name}=\"#{ns_decls1[prefix]}\"",
                           :red, use_color)
    end.join(", ")
    changes_parts << "Removed: #{missing_str}"
  end
  if extra.any?
    extra_str = extra.map do |prefix|
      attr_name = prefix.empty? ? "xmlns" : "xmlns:#{prefix}"
      ColorHelper.colorize("+#{attr_name}=\"#{ns_decls2[prefix]}\"",
                           :green, use_color)
    end.join(", ")
    changes_parts << "Added: #{extra_str}"
  end
  if changed.any?
    changed_str = changed.map do |prefix|
      attr_name = prefix.empty? ? "xmlns" : "xmlns:#{prefix}"
      "#{ColorHelper.colorize(attr_name, :cyan, use_color)}: " \
        "\"#{ns_decls1[prefix]}\" → \"#{ns_decls2[prefix]}\""
    end.join(", ")
    changes_parts << "Changed: #{changed_str}"
  end

  changes = changes_parts.join(" | ")

  [detail1, detail2, changes]
end

.format_namespace_uri_details(diff, use_color) ⇒ Array

Format namespace URI differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 53

def self.format_namespace_uri_details(diff, use_color)
  require_relative "color_helper"
  require_relative "node_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  # Use NamespaceHelper for consistent formatting
  ns1_display = Canon::Xml::NamespaceHelper.format_namespace(
    NodeUtils.get_namespace_uri_for_display(node1),
  )
  ns2_display = Canon::Xml::NamespaceHelper.format_namespace(
    NodeUtils.get_namespace_uri_for_display(node2),
  )

  element_name = NodeUtils.get_element_name_for_display(node1) || "element"

  detail1 = "<#{element_name}> #{ColorHelper.colorize(ns1_display,
                                                      :cyan, use_color)}"
  detail2 = "<#{element_name}> #{ColorHelper.colorize(ns2_display,
                                                      :cyan, use_color)}"

  changes = "Namespace differs: #{ColorHelper.colorize(ns1_display,
                                                       :red, use_color)} → " \
            "#{ColorHelper.colorize(ns2_display, :green, use_color)}"

  [detail1, detail2, changes]
end

.format_structural_whitespace_details(diff, use_color) ⇒ Array

Format structural whitespace differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 440

def self.format_structural_whitespace_details(diff, use_color)
  require_relative "color_helper"
  require_relative "node_utils"
  require_relative "text_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  text1 = NodeUtils.get_node_text(node1)
  text2 = NodeUtils.get_node_text(node2)

  detail1 = ColorHelper.colorize(TextUtils.visualize_whitespace(text1),
                                 :red, use_color)
  detail2 = ColorHelper.colorize(TextUtils.visualize_whitespace(text2),
                                 :green, use_color)

  changes = "Whitespace differs: #{detail1} → #{detail2}"

  [detail1, detail2, changes]
end

.format_text_content_details(diff, use_color, compact: false) ⇒ Array

Format text content differences

Parameters:

  • diff (DiffNode, Hash) —

    Difference node

  • use_color (Boolean) —

    Whether to use colors

  • compact (Boolean) (defaults to: false) —

    Whether to serialize element nodes as compact XML

Returns:

  • (Array) —

    Tuple of [detail1, detail2, changes]



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 361

def self.format_text_content_details(diff, use_color, compact: false)
  require_relative "color_helper"
  require_relative "node_utils"
  require_relative "text_utils"

  node1 = extract_node1(diff)
  node2 = extract_node2(diff)

  text1 = NodeUtils.node_to_display(node1, compact: compact)
  text2 = NodeUtils.node_to_display(node2, compact: compact)

  # Handle cases where one node is missing (e.g. text added or removed)
  if node1.nil? || node2.nil?
    if node1.nil?
      text2 = NodeUtils.node_to_display(node2, compact: compact)
    else
      text1 = NodeUtils.node_to_display(node1, compact: compact)
    end
  end

  if NodeUtils.inside_preserve_element?(node1) || NodeUtils.inside_preserve_element?(node2)
    detail1 = ColorHelper.colorize(
      TextUtils.visualize_whitespace(text1), :red, use_color
    )
    detail2 = ColorHelper.colorize(
      TextUtils.visualize_whitespace(text2), :green, use_color
    )
  elsif TextUtils.ambiguous_text_pair?(text1, text2) &&
      (NodeUtils.parent_of(node1) || NodeUtils.parent_of(node2))
    # Both sides render to empty/whitespace-only strings, which are
    # indistinguishable after JSON quoting.  Fall back to each side's
    # parent element serialized compactly, with whitespace visualized
    # so the reader can see the structural contrast.
    ctx1 = NodeUtils.serialize_node_compact(NodeUtils.parent_of(node1))
    ctx2 = NodeUtils.serialize_node_compact(NodeUtils.parent_of(node2))
    detail1 = ColorHelper.colorize(
      TextUtils.visualize_whitespace(ctx1), :red, use_color
    )
    detail2 = ColorHelper.colorize(
      TextUtils.visualize_whitespace(ctx2), :green, use_color
    )
  elsif compact && (node1.is_a?(Canon::Xml::Nodes::ElementNode) ||
                   node2.is_a?(Canon::Xml::Nodes::ElementNode))
    # In compact mode with element nodes, display as raw XML without
    # JSON-string quoting.  In normal mode (or for plain text), apply
    # the standard escaping/quoting logic.
    detail1 = ColorHelper.colorize(text1, :red, use_color)
    detail2 = ColorHelper.colorize(text2, :green, use_color)
  else
    # Escape non-ASCII characters for better terminal display
    # JSON.generate doesn't escape chars like NBSP (U+00A0) or em-dash (U+2014)
    detail1 = if TextUtils.needs_escaping?(text1)
                ColorHelper.colorize(
                  TextUtils.escape_for_display(text1), :red, use_color
                )
              else
                ColorHelper.colorize(format_json_value(text1), :red,
                                     use_color)
              end
    detail2 = if TextUtils.needs_escaping?(text2)
                ColorHelper.colorize(
                  TextUtils.escape_for_display(text2), :green, use_color
                )
              else
                ColorHelper.colorize(format_json_value(text2), :green,
                                     use_color)
              end
  end

  changes = "Content differs: #{detail1} → #{detail2}"

  [detail1, detail2, changes]
end

.namespace_declaration?(name) ⇒ Boolean

Check if an attribute name is a namespace declaration

Parameters:

  • name (String) —

    Attribute name

Returns:

  • (Boolean) —

    true if namespace declaration



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# File 'lib/canon/diff_formatter/diff_detail_formatter/dimension_formatter.rb', line 675

def self.namespace_declaration?(name)
  name == "xmlns" || name.to_s.start_with?("xmlns:")
end