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## Preferences

The preferences dialog comprises several panels:

- Font

  This panel controls the main font used by DrScheme.

- Indenting

  This panel controls which keywords DrScheme recognizes for indenting, and how each keyword is treated.

- General

  - Highlight between matching parens -- If checked, the editor marks the region between matching parenthesis with a gray background (in color) or a stipple pattern (in monochrome) when the flashing caret is next to a parenthesis.
  - Correct parens -- If checked, the editor automatically converts a typed ``)'' to ``]'' to match ``['', or it converts a typed ``]'' to ``)'' to match ``(``.
  - Flash paren match -- If checked, typing a closing parenthesis, square bracket, or quotation mark flashes the matching open parenthesis/bracket/quote.
  - Auto-save files -- If checked, the editor generates autosave files (see DrScheme Files) for files that have not been saved after five minutes.
  - Map delete to backspace -- If checked, the editor treats the Delete key like the Backspace key.
  - Verify exit -- If checked, DrScheme consults the user before exiting.
  - Ask before changing save format -- If checked, DrScheme consults the user before saving a file in non-text format (see DrScheme Files).
  - Wrap words in editor buffers -- If checked, DrScheme editors auto-wrap text lines by default. Changing this preference affects new windows only.
  - Show status-line -- If checked, DrScheme shows a status line at the bottom of each window.
  - Count line and column numbers from one -- If checked, the status line's line:column counter counts from one. Otherwise, it counts from zero.
  - Display line numbers in buffer; not character offsets -- If checked, the status line shows a line:column display for the current selection rather than the character offset into the text.
  - Enable keybindings in menus -- If checked, some DrScheme menu items have keybindings. Otherwise, no menu items have key bindings. Changing this preference affects new windows only.
  - Automatically print to postscript file -- If checked, printing will automatically save postscript files. If not, printing will use the standard printing mechanisms for your computer.
  - Use separate dialog for searching -- If checked, then selecting the Find menu item opens a separate dialog for searching and replacing. Otherwise, selecting Find opens an interactive search-and-replace panel at the bottom of a DrScheme window.

- General II

  - Only warn once when executions and interactions are not synchronized -- If checked, DrScheme warns the user on the first interaction after the definitions window, language, or teachpack is changed without a corresponding click on Execute. Otherwise, the warning appears on every interaction.
  - Enable backtrace bug icon in teaching languages -- If checked, the teaching languages will display a clickable bug icon when there is stack information to display, along with the error message.

- Check Syntax

  This panel controls the font and color styles used by the Check Syntax colorizations.

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