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

.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 531

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 569

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 545

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 557

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 296

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 202

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 257

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 418

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

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 16

def self.format_dimension_details(diff, use_color, compact: false,
expand_difference: false)
  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,
                                     expand_difference: expand_difference)
  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, expand_difference: false) ⇒ Array

Format element structure 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 169

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

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

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

  if expand_difference
    display1 = NodeUtils.serialize_node_compact(node1)
    display2 = NodeUtils.serialize_node_compact(node2)
    detail1 = ColorHelper.colorize(display1, :red, use_color)
    detail2 = ColorHelper.colorize(display2, :green, use_color)
  else
    detail1 = "<#{ColorHelper.colorize(name1, :red, use_color)}>"
    detail2 = "<#{ColorHelper.colorize(name2, :green, use_color)}>"
  end

  changes = "Element differs: #{ColorHelper.colorize(name1, :red,
                                                     use_color)} → " \
            "#{ColorHelper.colorize(name2, :green, use_color)}"

  [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 477

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 443

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 510

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 86

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 52

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 392

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 327

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 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 627

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