Ruby parser 6

CHANGELOG.md

@@ -1,8 +1,20 @@
-# v0.1.1 - 28 September 2026
+# Unreleased
+
+* Added `Input::RubyText` - a syntax-highlighted Ruby input control
+  * Subclasses `Text` with minimal code changes
+  * Uses `dr-parser-rb` for tokenization
+  * Default theme with customizable colors
+  * Exposes `tokens` for displaying parse statistics
+  * Caches parse results using `@value_changed` flag
+* Fixed bug where `value=` setter did not set `@value_changed = true`
+* Updated console to use `RubyText` for syntax-highlighted prompt
+* Added tests for `@value_changed` flag behavior
+
+# v0.1.1 - 28 September 2025
 
 * Removed a left over debugging `puts`. (Also allows me to test `Input::DEVELOPMENT`)
 
-# v0.1.0 - 28 September 2026
+# v0.1.0 - 28 September 2025
 
 * Updated release workflow to use maintained actions.
 * Removed references to $clipboard.

app/main.rb

@@ -2,3 +2,4 @@
 require 'app/book_sample.rb'
 # require 'app/log_sample.rb'
 # require 'app/menu_sample.rb'
+# require 'app/ruby_text_sample.rb'

app/ruby_text_sample.rb

@@ -0,0 +1,105 @@
+require 'lib/input.rb'
+
+def tick(args)
+  if args.tick_count == 0
+    Input.replace_console!
+
+    args.state.ruby_code ||= 'class Foo; def bar!(x); $gtk.args.outputs.labels << "hello #{x}"; end; end'
+
+    args.state.ruby_input = Input::RubyText.new(
+      x: 40,
+      y: 560,
+      w: 1200,
+      padding: 10,
+      prompt: 'Enter Ruby code...',
+      value: args.state.ruby_code,
+      size_px: 20,
+      selection_color: { r: 80, g: 80, b: 100 },
+      cursor_color: 0xAAAAAA,
+      cursor_width: 2,
+      background_color: [40, 44, 52],
+      blurred_background_color: [50, 54, 62]
+    )
+    args.state.ruby_input.focus
+  end
+
+  # Set background color (dark theme)
+  args.outputs.background_color = [30, 34, 42]
+
+  # Title
+  args.outputs.labels << {
+    x: 640,
+    y: 680,
+    text: 'Ruby Syntax Highlighter Input Demo',
+    size_px: 30,
+    alignment_enum: 1,
+    r: 200, g: 200, b: 200
+  }
+
+  # Instructions
+  args.outputs.labels << {
+    x: 640,
+    y: 640,
+    text: 'Type or edit Ruby code to see syntax highlighting in real-time',
+    size_px: 16,
+    alignment_enum: 1,
+    r: 150, g: 150, b: 150
+  }
+
+  args.state.ruby_input.tick
+  args.outputs.primitives << args.state.ruby_input
+
+  # Token statistics
+  y = 540
+  args.outputs.labels << {
+    x: 40,
+    y: y,
+    text: 'Token Breakdown:',
+    size_px: 16,
+    r: 200, g: 200, b: 200
+  }
+
+  y -= 25
+  token_types = args.state.ruby_input.tokens.map { |t| t[:type] }.uniq
+  token_types.each do |type|
+    count = args.state.ruby_input.tokens.count { |t| t[:type] == type }
+
+    args.outputs.labels << {
+      x: 40,
+      y: y,
+      text: "#{type}: #{count}",
+      size_px: 12,
+      r: 150, g: 150, b: 150
+    }
+    y -= 20
+  end
+
+  # Info text
+  bottom_y = 100
+  args.outputs.labels << {
+    x: 40,
+    y: bottom_y + 20,
+    text: "Input supports: keywords, strings, symbols, numbers, constants, comments, interpolation, and more!",
+    size_px: 14,
+    r: 150, g: 150, b: 150
+  }
+
+  # Example code suggestions
+  args.outputs.labels << {
+    x: 40,
+    y: bottom_y,
+    text: 'Try typing: def foo(bar) @baz = "hello #{bar}" end',
+    size_px: 12,
+    r: 120, g: 120, b: 120
+  }
+
+  # Footer
+  args.outputs.labels << {
+    x: 640,
+    y: 40,
+    text: "Press ESC to quit | FPS: #{args.gtk.current_framerate.to_i}",
+    size_px: 16,
+    alignment_enum: 1,
+    r: 150, g: 150, b: 150
+  }
+end

lib/base.rb

@@ -153,6 +153,7 @@ def value=(text)
       @value.replace(val)
       @selection_start = @selection_start.lesser(val.length)
       @selection_end = @selection_end.lesser(val.length)
+      @value_changed = true
     end
 
     def size_enum

lib/console.rb

@@ -3,7 +3,7 @@ def self.replace_console!
     GTK::Console.prepend(Input::Console)
   end
 
-  class Prompt < Text
+  class Prompt < RubyText
     def render(args, x:, y:)
       @x = x
       @y = y
@@ -53,7 +53,11 @@ def process_inputs args
         # is the cursor before the period?
         if @autocomplete_period_index && @autocomplete_period_index >= @prompt.selection_end
           autocomplete_clear
-        elsif @prompt.value_changed? || @prompt.selection_end != @autocomplete_selection_end
+        elsif @prompt.value_changed?
+          # User typed - just update the filter, don't modify their input
+          autocomplete_prefix
+        elsif @prompt.selection_end != @autocomplete_selection_end
+          # Cursor moved (arrow keys) - update suggestion
           autocomplete_prefix
           autocomplete_next(0)
         end
@@ -151,9 +155,11 @@ def autocomplete
 
       autocomplete_prefix
       autocomplete_next(0)
+      @autocomplete_selection_end = @prompt.selection_end  # Track the selection we just set
+      @prompt.instance_variable_set(:@value_changed, false)  # Reset flag so next tick doesn't think user typed
     rescue Exception => e
-      puts "* BUG: Tab autocompletion failed. Let us know about this.\n#{e}"
-      puts e.backtrace
+      puts "* BUG: Tab autocompletion failed: #{e.class.name}: #{e.message}"
+      puts e.backtrace.join("\n")
     end
 
     def autocomplete_prefix
@@ -174,10 +180,20 @@ def autocomplete_prefix
 
     def autocomplete_next(dir)
       return unless @autocompleting
+      return if @autocomplete_menu.items.empty?
 
       @autocomplete_menu.selected_index -= dir
-      @prompt.value = display_autocomplete_candidate(@autocomplete_menu.value)
-      @prompt.selection_start = @prompt.value.length
+      candidate_value = @autocomplete_menu.value
+      return unless candidate_value
+
+      candidate = display_autocomplete_candidate(candidate_value)
+      @prompt.value = candidate
+      # Set selection to highlight the autocompleted suffix
+      selection_pos = @autocomplete_period_index ? @autocomplete_period_index + 1 + @autocomplete_prefix.length : @autocomplete_prefix.length
+      @prompt.selection_start = selection_pos
+      @prompt.selection_end = candidate.length
+      @autocomplete_selection_end = @prompt.selection_end  # Track the selection we just set
+      @prompt.instance_variable_set(:@value_changed, false)  # Reset flag so next tick doesn't think user typed
     rescue => e
       puts "Error in #autocomplete_next(#{dir}): <#{e.class.name}> #{e.message}"
     end

lib/input.rb

@@ -7,6 +7,7 @@
 require_relative 'base.rb'
 require_relative 'update.rb'
 require_relative 'text.rb'
+require_relative 'ruby_text.rb'
 require_relative 'multiline.rb'
 require_relative 'menu.rb'
 require_relative 'console.rb'