Fix RuboCop Style/SelectByKind and Style/PredicateWithKind offenses

Add default_font and default_size options to Document.create, rendered
as w:docDefaults in styles.xml. Defaults to Arial 12pt. Adjust heading
sizes for better visual hierarchy.

Styling based on uutilsynet guidance for accessible documents:
https://www.uutilsynet.no/veiledning/rettleiar-universelt-utforma-word-og-pdf-dokument/1636

.claude/settings.local.json

@@ -2,7 +2,9 @@
   "permissions": {
     "allow": [
       "Bash(bundle exec rake test:*)",
-      "Bash(bundle exec rake:*)"
+      "Bash(bundle exec rake:*)",
+      "WebSearch",
+      "Bash(unzip:*)"
     ],
     "deny": [],
     "ask": []

README.md

@@ -332,6 +332,75 @@ doc.table(style: :borderless) do
 end
 ```
 
+#### Column Sizing
+
+Control table column widths with layout modes and explicit sizing.
+
+**Auto-layout** - columns adjust to fit content:
+
+```ruby
+doc.table(layout: :auto) do
+  doc.tr do
+    doc.td "Short"
+    doc.td "This column expands to fit longer content"
+  end
+end
+```
+
+**Fixed column widths** - specify widths for all columns:
+
+```ruby
+# Inches
+doc.table(columns: %w[2in 3in 1.5in]) do
+  doc.tr do
+    doc.td "2 inches"
+    doc.td "3 inches"
+    doc.td "1.5 inches"
+  end
+end
+
+# Centimeters
+doc.table(columns: %w[5cm 10cm]) do
+  doc.tr { doc.td "5cm"; doc.td "10cm" }
+end
+
+# Percentages
+doc.table(columns: %w[25% 50% 25%]) do
+  doc.tr { doc.td "Quarter"; doc.td "Half"; doc.td "Quarter" }
+end
+```
+
+**Per-cell widths** - set width on individual cells:
+
+```ruby
+doc.table do
+  doc.tr do
+    doc.td("Narrow", width: "1in")
+    doc.td("Wide", width: "4in")
+  end
+end
+```
+
+**Combined layout and columns:**
+
+```ruby
+doc.table(layout: :fixed, columns: %w[2in 2in 2in]) do
+  doc.tr do
+    doc.td "A"
+    doc.td "B"
+    doc.td "C"
+  end
+end
+```
+
+**Width formats:**
+
+| Format | Example | Description |
+|--------|---------|-------------|
+| Inches | `"2in"` | Fixed width in inches |
+| Centimeters | `"5cm"` | Fixed width in centimeters |
+| Percentage | `"50%"` | Percentage of table width |
+
 ### Images
 
 Images can be added to paragraphs, table cells, and list items. Supports PNG and JPEG formats.
@@ -526,10 +595,10 @@ end
 | `li(text)` | List item with text |
 | `li { }` | List item with block content |
 | `li(text) { }` | List item with text and nested content |
-| `table(style:) { }` | Table with optional style |
+| `table(style:, layout:, columns:) { }` | Table with optional style, layout (`:auto`/`:fixed`), and column widths |
 | `tr { }` | Table row |
-| `td(text)` | Table cell with text |
+| `td(text, width:)` | Table cell with text and optional width |
-| `td { }` | Table cell with block content |
+| `td(width:) { }` | Table cell with block content and optional width |
 | `image(path, width:, height:)` | Insert image (PNG/JPEG). Dimensions: `"2in"`, `"5cm"`, `"100px"`, or integer pixels |
 
 ## Development

examples/full_demo.rb

@@ -343,6 +343,48 @@ Notare::Document.create(OUTPUT_FILE) do |doc|
     end
   end
 
+  doc.h3 "Table Column Sizing"
+
+  doc.p "Auto-layout table (columns fit content):"
+  doc.table(layout: :auto) do
+    doc.tr do
+      doc.td "Short"
+      doc.td "This column has much longer content that will expand"
+    end
+  end
+
+  doc.p "Fixed column widths in inches:"
+  doc.table(columns: %w[2in 3in 1.5in]) do
+    doc.tr do
+      doc.td { doc.b { doc.text "2 inches" } }
+      doc.td { doc.b { doc.text "3 inches" } }
+      doc.td { doc.b { doc.text "1.5 inches" } }
+    end
+    doc.tr do
+      doc.td "Column A"
+      doc.td "Column B"
+      doc.td "Column C"
+    end
+  end
+
+  doc.p "Percentage-based columns:"
+  doc.table(columns: %w[25% 50% 25%]) do
+    doc.tr do
+      doc.td "25%"
+      doc.td "50%"
+      doc.td "25%"
+    end
+  end
+
+  doc.p "Per-cell width control:"
+  doc.table do
+    doc.tr do
+      doc.td("Narrow", width: "1in")
+      doc.td("Wide column", width: "4in")
+      doc.td("Medium", width: "2in")
+    end
+  end
+
   # ============================================================================
   # 10. Images
   # ============================================================================

lib/notare.rb

@@ -3,6 +3,7 @@
 require "nokogiri"
 
 require_relative "notare/version"
+require_relative "notare/xml_sanitizer"
 require_relative "notare/nodes/base"
 require_relative "notare/nodes/break"
 require_relative "notare/nodes/hyperlink"
@@ -17,6 +18,7 @@ require_relative "notare/nodes/table_cell"
 require_relative "notare/image_dimensions"
 require_relative "notare/style"
 require_relative "notare/table_style"
+require_relative "notare/width_parser"
 require_relative "notare/xml/content_types"
 require_relative "notare/xml/relationships"
 require_relative "notare/xml/document_xml"

lib/notare/builder.rb

@@ -100,8 +100,8 @@ module Notare
       @current_list.add_item(item)
     end
 
-    def table(style: nil, &block)
+    def table(style: nil, layout: nil, columns: nil, &block)
-      tbl = Nodes::Table.new(style: resolve_table_style(style))
+      tbl = Nodes::Table.new(style: resolve_table_style(style), layout: layout, columns: columns)
       previous_table = @current_table
       @current_table = tbl
       block.call
@@ -118,8 +118,8 @@ module Notare
       @current_table.add_row(row)
     end
 
-    def td(text = nil, &block)
+    def td(text = nil, width: nil, &block)
-      cell = Nodes::TableCell.new
+      cell = Nodes::TableCell.new(width: width)
       if block
         with_target(cell, &block)
       elsif text

lib/notare/document.rb

@@ -4,16 +4,21 @@ module Notare
   class Document
     include Builder
 
-    attr_reader :nodes, :styles, :table_styles, :hyperlinks
+    DEFAULT_FONT = "Arial"
+    DEFAULT_SIZE = 12
 
-    def self.create(path, &block)
+    attr_reader :nodes, :styles, :table_styles, :hyperlinks, :default_font, :default_size
-      doc = new
+
+    def self.create(path, default_font: DEFAULT_FONT, default_size: DEFAULT_SIZE, &block)
+      doc = new(default_font: default_font, default_size: default_size)
       block.call(doc)
       doc.save(path)
       doc
     end
 
-    def initialize
+    def initialize(default_font: DEFAULT_FONT, default_size: DEFAULT_SIZE)
+      @default_font = default_font
+      @default_size = default_size
       @nodes = []
       @format_stack = []
       @current_target = nil
@@ -51,7 +56,7 @@ module Notare
     end
 
     def lists
-      @nodes.select { |n| n.is_a?(Nodes::List) }
+      @nodes.grep(Nodes::List)
     end
 
     def uses_lists?
@@ -88,25 +93,25 @@ module Notare
     def next_image_rid
       # rId1 = styles.xml (always present)
       # rId2 = numbering.xml (if lists present)
-      # rId3+ = images, then hyperlinks
+      # rId3+ = images and hyperlinks share the same ID space
       base = @has_lists ? 3 : 2
-      "rId#{base + @images.size}"
+      "rId#{base + @images.size + @hyperlinks.size}"
     end
 
     def next_hyperlink_rid
-      # Hyperlinks come after images
+      # Images and hyperlinks share the same ID space
       base = @has_lists ? 3 : 2
       "rId#{base + @images.size + @hyperlinks.size}"
     end
 
     def register_built_in_styles
       # Headings (spacing_before ensures they're rendered as paragraph styles)
-      define_style :heading1, size: 24, bold: true, spacing_before: 240, spacing_after: 120
+      define_style :heading1, size: 20, bold: true, spacing_before: 240, spacing_after: 120
-      define_style :heading2, size: 18, bold: true, spacing_before: 200, spacing_after: 100
+      define_style :heading2, size: 16, bold: true, spacing_before: 200, spacing_after: 100
       define_style :heading3, size: 14, bold: true, spacing_before: 160, spacing_after: 80
       define_style :heading4, size: 12, bold: true, spacing_before: 120, spacing_after: 60
-      define_style :heading5, size: 11, bold: true, italic: true, spacing_before: 100, spacing_after: 40
+      define_style :heading5, size: 12, bold: true, italic: true, spacing_before: 100, spacing_after: 40
-      define_style :heading6, size: 10, bold: true, italic: true, spacing_before: 80, spacing_after: 40
+      define_style :heading6, size: 12, italic: true, spacing_before: 80, spacing_after: 40
 
       # Other built-in styles
       define_style :title, size: 26, bold: true, align: :center

lib/notare/nodes/run.rb

@@ -8,7 +8,7 @@ module Notare
       def initialize(text, bold: false, italic: false, underline: false,
                      strike: false, highlight: nil, color: nil, style: nil)
         super()
-        @text = text
+        @text = XmlSanitizer.sanitize(text)
         @bold = bold
         @italic = italic
         @underline = underline

lib/notare/nodes/table.rb

@@ -3,12 +3,14 @@
 module Notare
   module Nodes
     class Table < Base
-      attr_reader :rows, :style
+      attr_reader :rows, :style, :layout, :columns
 
-      def initialize(style: nil)
+      def initialize(style: nil, layout: nil, columns: nil)
         super()
         @rows = []
         @style = style
+        @layout = layout
+        @columns = columns
       end
 
       def add_row(row)

lib/notare/nodes/table_cell.rb

@@ -3,11 +3,12 @@
 module Notare
   module Nodes
     class TableCell < Base
-      attr_reader :runs
+      attr_reader :runs, :width
 
-      def initialize
+      def initialize(width: nil)
-        super
+        super()
         @runs = []
+        @width = width
       end
 
       def add_run(run)

lib/notare/package.rb

@@ -59,7 +59,12 @@ module Notare
     end
 
     def styles_xml
-      Xml::StylesXml.new(@document.styles, @document.table_styles).to_xml
+      Xml::StylesXml.new(
+        @document.styles,
+        @document.table_styles,
+        default_font: @document.default_font,
+        default_size: @document.default_size
+      ).to_xml
     end
 
     def numbering_xml

lib/notare/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Notare
-  VERSION = "0.0.4"
+  VERSION = "0.0.7"
 end

lib/notare/width_parser.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Notare
+  module WidthParser
+    TWIPS_PER_INCH = 1440
+    TWIPS_PER_CM = 567
+    PCT_MULTIPLIER = 50
+
+    ParsedWidth = Struct.new(:value, :type, keyword_init: true)
+
+    def self.parse(value)
+      case value
+      when :auto, nil
+        ParsedWidth.new(value: 0, type: "auto")
+      when Integer
+        ParsedWidth.new(value: value, type: "dxa")
+      when /\A(\d+(?:\.\d+)?)\s*in\z/i
+        twips = (::Regexp.last_match(1).to_f * TWIPS_PER_INCH).to_i
+        ParsedWidth.new(value: twips, type: "dxa")
+      when /\A(\d+(?:\.\d+)?)\s*cm\z/i
+        twips = (::Regexp.last_match(1).to_f * TWIPS_PER_CM).to_i
+        ParsedWidth.new(value: twips, type: "dxa")
+      when /\A(\d+(?:\.\d+)?)\s*%\z/
+        pct = (::Regexp.last_match(1).to_f * PCT_MULTIPLIER).to_i
+        ParsedWidth.new(value: pct, type: "pct")
+      else
+        raise ArgumentError, "Invalid width: #{value}. Use '2in', '5cm', '50%', :auto, or integer twips."
+      end
+    end
+  end
+end

lib/notare/xml/document_xml.rb

@@ -163,12 +163,12 @@ module Notare
       end
 
       def render_table(xml, table)
-        column_count = table.rows.first&.cells&.size || 1
+        column_widths = compute_column_widths(table)
-        col_width = 5000 / column_count
 
         xml["w"].tbl do
           xml["w"].tblPr do
-            xml["w"].tblW("w:w" => "5000", "w:type" => "pct")
+            render_table_width(xml, column_widths)
+            render_table_layout(xml, table.layout)
             if table.style
               xml["w"].tblStyle("w:val" => table.style.style_id)
             else
@@ -179,25 +179,89 @@ module Notare
               end
             end
           end
-          xml["w"].tblGrid do
+          render_table_grid(xml, column_widths)
-            column_count.times do
+          table.rows.each { |row| render_table_row(xml, row, column_widths) }
-              xml["w"].gridCol("w:w" => col_width.to_s)
+        end
-            end
+      end
+
+      def compute_column_widths(table)
+        if table.columns
+          table.columns.map { |c| WidthParser.parse(c) }
+        elsif table.layout == :auto
+          first_row = table.rows.first
+          cell_count = first_row&.cells&.size || 1
+          Array.new(cell_count) { WidthParser::ParsedWidth.new(value: 0, type: "auto") }
+        else
+          infer_widths_from_first_row(table)
+        end
+      end
+
+      def infer_widths_from_first_row(table)
+        first_row = table.rows.first
+        return [WidthParser::ParsedWidth.new(value: 5000, type: "pct")] unless first_row
+
+        cells = first_row.cells
+        has_explicit_widths = cells.any?(&:width)
+
+        if has_explicit_widths
+          cells.map do |cell|
+            cell.width ? WidthParser.parse(cell.width) : WidthParser::ParsedWidth.new(value: 0, type: "auto")
           end
-          table.rows.each { |row| render_table_row(xml, row, col_width) }
+        else
+          col_width = 5000 / cells.size
+          cells.map { WidthParser::ParsedWidth.new(value: col_width, type: "pct") }
         end
       end
 
-      def render_table_row(xml, row, col_width)
+      def render_table_width(xml, column_widths)
+        if column_widths.all? { |w| w.type == "pct" }
+          total = column_widths.sum(&:value)
+          xml["w"].tblW("w:w" => total.to_s, "w:type" => "pct")
+        elsif column_widths.all? { |w| w.type == "dxa" }
+          total = column_widths.sum(&:value)
+          xml["w"].tblW("w:w" => total.to_s, "w:type" => "dxa")
+        else
+          xml["w"].tblW("w:w" => "0", "w:type" => "auto")
+        end
+      end
+
+      def render_table_layout(xml, layout)
+        return unless layout
+
+        layout_type = layout == :auto ? "autofit" : "fixed"
+        xml["w"].tblLayout("w:type" => layout_type)
+      end
+
+      def render_table_grid(xml, column_widths)
+        xml["w"].tblGrid do
+          column_widths.each do |width|
+            grid_width = case width.type
+                         when "pct" then pct_to_approximate_dxa(width.value)
+                         when "auto" then 1440 # Default 1 inch for auto columns
+                         else width.value
+                         end
+            xml["w"].gridCol("w:w" => grid_width.to_s)
+          end
+        end
+      end
+
+      # Convert percentage (in fiftieths) to approximate twips
+      # Assumes 6.5 inch content width = 9360 twips
+      def pct_to_approximate_dxa(pct_value)
+        (pct_value * 9360 / 5000.0).to_i
+      end
+
+      def render_table_row(xml, row, column_widths)
         xml["w"].tr do
-          row.cells.each { |cell| render_table_cell(xml, cell, col_width) }
+          row.cells.each_with_index { |cell, idx| render_table_cell(xml, cell, column_widths[idx]) }
         end
       end
 
-      def render_table_cell(xml, cell, col_width)
+      def render_table_cell(xml, cell, column_width)
+        width = column_width || WidthParser::ParsedWidth.new(value: 0, type: "auto")
         xml["w"].tc do
           xml["w"].tcPr do
-            xml["w"].tcW("w:w" => col_width.to_s, "w:type" => "pct")
+            xml["w"].tcW("w:w" => width.value.to_s, "w:type" => width.type)
           end
           xml["w"].p do
             cell.runs.each { |run| render_run(xml, run) }

lib/notare/xml/styles_xml.rb

@@ -18,9 +18,11 @@ module Notare
         right: "right"
       }.freeze
 
-      def initialize(styles, table_styles = {})
+      def initialize(styles, table_styles = {}, default_font: nil, default_size: nil)
         @styles = styles
         @table_styles = table_styles
+        @default_font = default_font
+        @default_size = default_size
       end
 
       def to_xml
@@ -28,10 +30,14 @@ module Notare
           xml.styles("xmlns:w" => NAMESPACE) do
             xml.parent.namespace = xml.parent.namespace_definitions.find { |ns| ns.prefix == "w" }
 
+            render_doc_defaults(xml) if @default_font || @default_size
+
             @styles.each_value do |style|
               render_style(xml, style)
             end
 
+            render_table_normal_style(xml) if @table_styles.any?
+
             @table_styles.each_value do |style|
               render_table_style(xml, style)
             end
@@ -42,6 +48,28 @@ module Notare
 
       private
 
+      def render_doc_defaults(xml)
+        xml["w"].docDefaults do
+          xml["w"].rPrDefault do
+            xml["w"].rPr do
+              if @default_font
+                xml["w"].rFonts(
+                  "w:ascii" => @default_font,
+                  "w:hAnsi" => @default_font,
+                  "w:eastAsia" => @default_font,
+                  "w:cs" => @default_font
+                )
+              end
+              if @default_size
+                half_points = (@default_size * 2).to_i
+                xml["w"].sz("w:val" => half_points.to_s)
+                xml["w"].szCs("w:val" => half_points.to_s)
+              end
+            end
+          end
+        end
+      end
+
       def render_style(xml, style)
         style_type = style.paragraph_properties? ? "paragraph" : "character"
 
@@ -57,8 +85,12 @@ module Notare
         xml["w"].pPr do
           xml["w"].jc("w:val" => ALIGNMENT_MAP[style.align]) if style.align
           xml["w"].ind("w:left" => style.indent.to_s) if style.indent
-          xml["w"].spacing("w:before" => style.spacing_before.to_s) if style.spacing_before
+          if style.spacing_before || style.spacing_after
-          xml["w"].spacing("w:after" => style.spacing_after.to_s) if style.spacing_after
+            spacing_attrs = {}
+            spacing_attrs["w:before"] = style.spacing_before.to_s if style.spacing_before
+            spacing_attrs["w:after"] = style.spacing_after.to_s if style.spacing_after
+            xml["w"].spacing(spacing_attrs)
+          end
         end
       end
 
@@ -75,9 +107,24 @@ module Notare
         end
       end
 
+      def render_table_normal_style(xml)
+        xml["w"].style("w:type" => "table", "w:default" => "1", "w:styleId" => "TableNormal") do
+          xml["w"].name("w:val" => "Normal Table")
+          xml["w"].tblPr do
+            xml["w"].tblCellMar do
+              xml["w"].top("w:w" => "0", "w:type" => "dxa")
+              xml["w"].left("w:w" => "108", "w:type" => "dxa")
+              xml["w"].bottom("w:w" => "0", "w:type" => "dxa")
+              xml["w"].right("w:w" => "108", "w:type" => "dxa")
+            end
+          end
+        end
+      end
+
       def render_table_style(xml, style)
         xml["w"].style("w:type" => "table", "w:styleId" => style.style_id) do
           xml["w"].name("w:val" => style.display_name)
+          xml["w"].basedOn("w:val" => "TableNormal")
 
           xml["w"].tblPr do
             render_table_borders(xml, style.borders) if style.borders

lib/notare/xml_sanitizer.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module Notare
+  module XmlSanitizer
+    # Invalid XML 1.0 characters: 0x00, 0x01-0x08, 0x0B-0x0C, 0x0E-0x1F
+    # Valid whitespace preserved: 0x09 (tab), 0x0A (LF), 0x0D (CR)
+    INVALID_XML_CHARS = /[\x00-\x08\x0B\x0C\x0E-\x1F]/
+
+    def self.sanitize(text)
+      return text unless text.is_a?(String)
+
+      text.gsub(INVALID_XML_CHARS, "")
+    end
+  end
+end

test/document_test.rb

@@ -69,6 +69,6 @@ class DocumentTest < Minitest::Test
     doc.table { doc.tr { doc.td "Cell" } }
 
     assert_equal 2, doc.lists.count
-    assert(doc.lists.all? { |l| l.is_a?(Notare::Nodes::List) })
+    assert(doc.lists.all?(Notare::Nodes::List))
   end
 end

test/paragraph_test.rb

@@ -111,4 +111,21 @@ class ParagraphTest < Minitest::Test
     # Newlines should be preserved in the text
     assert_includes xml, "Line 1\nLine 2\nLine 3"
   end
+
+  def test_invalid_xml_characters_are_stripped
+    xml = create_doc_and_read_xml do |doc|
+      doc.p "infrastruktur\x02bidrag"
+      doc.p "hello\x00world"
+      doc.p "test\x01\x03\x04value"
+    end
+
+    # Invalid characters should be stripped
+    assert_includes xml, "infrastrukturbidrag"
+    assert_includes xml, "helloworld"
+    assert_includes xml, "testvalue"
+
+    # Verify the XML is valid by parsing it (will raise if invalid)
+    doc = Nokogiri::XML(xml, &:strict)
+    assert doc.errors.empty?, "XML should be valid: #{doc.errors}"
+  end
 end

test/table_test.rb

@@ -134,4 +134,170 @@ class TableTest < Minitest::Test
     assert_includes xml, "R0C0"
     assert_includes xml, "R4C4"
   end
+
+  def test_table_with_auto_layout
+    xml = create_doc_and_read_xml do |doc|
+      doc.table(layout: :auto) do
+        doc.tr do
+          doc.td "Short"
+          doc.td "Much longer content here"
+        end
+      end
+    end
+
+    assert_includes xml, '<w:tblLayout w:type="autofit"/>'
+    assert_includes xml, '<w:tblW w:w="0" w:type="auto"/>'
+    assert_includes xml, '<w:tcW w:w="0" w:type="auto"/>'
+  end
+
+  def test_table_with_fixed_layout
+    xml = create_doc_and_read_xml do |doc|
+      doc.table(layout: :fixed) do
+        doc.tr do
+          doc.td "Cell 1"
+          doc.td "Cell 2"
+        end
+      end
+    end
+
+    assert_includes xml, '<w:tblLayout w:type="fixed"/>'
+  end
+
+  def test_table_with_explicit_column_widths_in_inches
+    xml = create_doc_and_read_xml do |doc|
+      doc.table(columns: %w[2in 3in]) do
+        doc.tr do
+          doc.td "A"
+          doc.td "B"
+        end
+      end
+    end
+
+    # 2 inches = 2880 twips, 3 inches = 4320 twips
+    assert_includes xml, '<w:tblW w:w="7200" w:type="dxa"/>'
+    assert_includes xml, '<w:tcW w:w="2880" w:type="dxa"/>'
+    assert_includes xml, '<w:tcW w:w="4320" w:type="dxa"/>'
+  end
+
+  def test_table_with_percentage_columns
+    xml = create_doc_and_read_xml do |doc|
+      doc.table(columns: ["25%", "75%"]) do
+        doc.tr do
+          doc.td "A"
+          doc.td "B"
+        end
+      end
+    end
+
+    # 25% = 1250 (fiftieths), 75% = 3750 (fiftieths)
+    assert_includes xml, '<w:tblW w:w="5000" w:type="pct"/>'
+    assert_includes xml, '<w:tcW w:w="1250" w:type="pct"/>'
+    assert_includes xml, '<w:tcW w:w="3750" w:type="pct"/>'
+  end
+
+  def test_table_with_centimeter_columns
+    xml = create_doc_and_read_xml do |doc|
+      doc.table(columns: ["2.54cm", "5cm"]) do
+        doc.tr do
+          doc.td "A"
+          doc.td "B"
+        end
+      end
+    end
+
+    # 2.54cm = ~1440 twips (1 inch), 5cm = ~2835 twips
+    assert_includes xml, '<w:tcW w:w="1440" w:type="dxa"/>'
+    assert_includes xml, '<w:tcW w:w="2835" w:type="dxa"/>'
+  end
+
+  def test_cell_with_explicit_width
+    xml = create_doc_and_read_xml do |doc|
+      doc.table do
+        doc.tr do
+          doc.td("Narrow", width: "1in")
+          doc.td("Wide", width: "4in")
+        end
+      end
+    end
+
+    # 1 inch = 1440 twips, 4 inches = 5760 twips
+    assert_includes xml, '<w:tcW w:w="1440" w:type="dxa"/>'
+    assert_includes xml, '<w:tcW w:w="5760" w:type="dxa"/>'
+  end
+
+  def test_cell_width_with_block
+    xml = create_doc_and_read_xml do |doc|
+      doc.table do
+        doc.tr do
+          doc.td(width: "2in") { doc.b { doc.text "Bold content" } }
+        end
+      end
+    end
+
+    assert_includes xml, '<w:tcW w:w="2880" w:type="dxa"/>'
+    assert_includes xml, "Bold content"
+    assert_includes xml, "<w:b/>"
+  end
+
+  def test_mixed_cell_widths_explicit_and_auto
+    xml = create_doc_and_read_xml do |doc|
+      doc.table do
+        doc.tr do
+          doc.td("Fixed", width: "2in")
+          doc.td "Auto"
+        end
+      end
+    end
+
+    # First cell has explicit width, second gets auto
+    assert_includes xml, '<w:tcW w:w="2880" w:type="dxa"/>'
+    assert_includes xml, '<w:tcW w:w="0" w:type="auto"/>'
+    assert_includes xml, '<w:tblW w:w="0" w:type="auto"/>'
+  end
+
+  def test_table_columns_override_cell_widths
+    xml = create_doc_and_read_xml do |doc|
+      doc.table(columns: %w[3in 3in]) do
+        doc.tr do
+          doc.td("A", width: "1in") # This width is ignored
+          doc.td "B"
+        end
+      end
+    end
+
+    # Table-level columns take precedence
+    assert_includes xml, '<w:tcW w:w="4320" w:type="dxa"/>'
+    refute_includes xml, '<w:tcW w:w="1440" w:type="dxa"/>'
+  end
+
+  def test_table_layout_with_columns
+    xml = create_doc_and_read_xml do |doc|
+      doc.table(layout: :fixed, columns: %w[2in 2in 2in]) do
+        doc.tr do
+          doc.td "A"
+          doc.td "B"
+          doc.td "C"
+        end
+      end
+    end
+
+    assert_includes xml, '<w:tblLayout w:type="fixed"/>'
+    assert_includes xml, '<w:tcW w:w="2880" w:type="dxa"/>'
+  end
+
+  def test_default_behavior_unchanged
+    xml = create_doc_and_read_xml do |doc|
+      doc.table do
+        doc.tr do
+          doc.td "A"
+          doc.td "B"
+        end
+      end
+    end
+
+    # Default: equal percentage widths (5000 / 2 = 2500 per cell)
+    assert_includes xml, '<w:tblW w:w="5000" w:type="pct"/>'
+    assert_includes xml, '<w:tcW w:w="2500" w:type="pct"/>'
+    refute_includes xml, "<w:tblLayout" # No layout element by default
+  end
 end

test/width_parser_test.rb

@@ -0,0 +1,91 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class WidthParserTest < Minitest::Test
+  def test_parse_auto_symbol
+    result = Notare::WidthParser.parse(:auto)
+    assert_equal 0, result.value
+    assert_equal "auto", result.type
+  end
+
+  def test_parse_nil
+    result = Notare::WidthParser.parse(nil)
+    assert_equal 0, result.value
+    assert_equal "auto", result.type
+  end
+
+  def test_parse_integer_as_twips
+    result = Notare::WidthParser.parse(1440)
+    assert_equal 1440, result.value
+    assert_equal "dxa", result.type
+  end
+
+  def test_parse_inches
+    result = Notare::WidthParser.parse("2in")
+    assert_equal 2880, result.value
+    assert_equal "dxa", result.type
+  end
+
+  def test_parse_inches_with_decimal
+    result = Notare::WidthParser.parse("1.5in")
+    assert_equal 2160, result.value
+    assert_equal "dxa", result.type
+  end
+
+  def test_parse_inches_case_insensitive
+    result = Notare::WidthParser.parse("2IN")
+    assert_equal 2880, result.value
+    assert_equal "dxa", result.type
+  end
+
+  def test_parse_centimeters
+    result = Notare::WidthParser.parse("5cm")
+    assert_equal 2835, result.value
+    assert_equal "dxa", result.type
+  end
+
+  def test_parse_centimeters_with_decimal
+    result = Notare::WidthParser.parse("2.54cm")
+    assert_equal 1440, result.value
+    assert_equal "dxa", result.type
+  end
+
+  def test_parse_percentage
+    result = Notare::WidthParser.parse("50%")
+    assert_equal 2500, result.value
+    assert_equal "pct", result.type
+  end
+
+  def test_parse_percentage_with_decimal
+    result = Notare::WidthParser.parse("33.3%")
+    assert_equal 1664, result.value # 33.3 * 50 = 1664.999... truncates to 1664
+    assert_equal "pct", result.type
+  end
+
+  def test_parse_100_percent
+    result = Notare::WidthParser.parse("100%")
+    assert_equal 5000, result.value
+    assert_equal "pct", result.type
+  end
+
+  def test_parse_with_spaces
+    result = Notare::WidthParser.parse("2 in")
+    assert_equal 2880, result.value
+    assert_equal "dxa", result.type
+  end
+
+  def test_invalid_width_raises_error
+    error = assert_raises(ArgumentError) do
+      Notare::WidthParser.parse("invalid")
+    end
+    assert_match(/Invalid width/, error.message)
+  end
+
+  def test_invalid_unit_raises_error
+    error = assert_raises(ArgumentError) do
+      Notare::WidthParser.parse("10px")
+    end
+    assert_match(/Invalid width/, error.message)
+  end
+end

test/xml_sanitizer_test.rb

@@ -0,0 +1,73 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class XmlSanitizerTest < Minitest::Test
+  def test_removes_null_character
+    assert_equal "hello", Notare::XmlSanitizer.sanitize("hel\x00lo")
+  end
+
+  def test_removes_control_characters_0x01_to_0x08
+    input = "a\x01b\x02c\x03d\x04e\x05f\x06g\x07h\x08i"
+    assert_equal "abcdefghi", Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_removes_control_characters_0x0b_and_0x0c
+    input = "hello\x0Bworld\x0Ctest"
+    assert_equal "helloworldtest", Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_removes_control_characters_0x0e_to_0x1f
+    input = "a\x0Eb\x0Fc\x10d\x11e\x1Ff"
+    assert_equal "abcdef", Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_preserves_tab_character
+    input = "hello\tworld"
+    assert_equal "hello\tworld", Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_preserves_newline_character
+    input = "hello\nworld"
+    assert_equal "hello\nworld", Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_preserves_carriage_return_character
+    input = "hello\rworld"
+    assert_equal "hello\rworld", Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_preserves_crlf
+    input = "hello\r\nworld"
+    assert_equal "hello\r\nworld", Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_returns_nil_unchanged
+    assert_nil Notare::XmlSanitizer.sanitize(nil)
+  end
+
+  def test_returns_non_string_unchanged
+    assert_equal 123, Notare::XmlSanitizer.sanitize(123)
+    assert_equal :symbol, Notare::XmlSanitizer.sanitize(:symbol)
+  end
+
+  def test_preserves_unicode_characters
+    input = "café naïve 日本語 🎉"
+    assert_equal "café naïve 日本語 🎉", Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_preserves_regular_text
+    input = "Hello, World! This is normal text."
+    assert_equal input, Notare::XmlSanitizer.sanitize(input)
+  end
+
+  def test_handles_empty_string
+    assert_equal "", Notare::XmlSanitizer.sanitize("")
+  end
+
+  def test_real_world_case_stx_character
+    # The actual case from the failed.docx: 0x02 (STX) character
+    input = "infrastruktur\x02bidrag"
+    assert_equal "infrastrukturbidrag", Notare::XmlSanitizer.sanitize(input)
+  end
+end