A new markup editor helper

Markup types

• Block

  • Markup before and optionally after block
  • Block may contain several rows
  • Block may also be a list item och table item
  • Block may also be open i.e. start identifier has been entered but not end marker

• List

  • In list each row have a block operation
  • Block operations may be different on each line

Attributes

• Markups may have different attributes associated with the markup
• The same markups may be used on different markup types

Selection types

• Selection

  • Only text covered by selection is modified

• Cursor Location / No selection

  • All markup types around cursor location is identified and included in scope selection

Open issues

• Should nested markups be supported

Interaction flow

Show current markups

• Check which markup which are active (active_markup) at cursor_pos/selection

• If a single markup

  • Identify attributes for markup
  • Highlight attributes

• Highlight active_markup

Change markup for selection

• If selection has been made

  • If selection markup has no markup

    • Set wanted markup

  • If selection markup != wanted markup

    • Change selection markup to wanted markup

  • If selection markup == wanted markup

    • Remove current markup

Enter markup

• If no selection has been made

  • If active markups != wanted markup

    • Output beginning markup
    • Set open markup (open_markup) to wanted markup

  • If active markups == wanted markup

    • Make selection for active markup
    • Remove current markup

Exit markup

• If open_markup and it is of block type

  • Output end markup
  • Clear open_markup

Carrage return in open block markup

• If open_markup and carrage return

  • Output end markup for row
  • Output begin markup for next row (at the same location as last row)

Change attribute

• If selection has been made

  • If selection has markup markup

    • Change markup attribute to wanted attribute

• If active markup

  • Change markup attribute to wanted attribute

References

• TEH
• MarkItUp
• Different desktop editors