Property research: Trim trailing spaces

Issue #60.

Option for trimming trailing whitespace.

A trim_trailing_whitespace option (or similarly named option) will control whether whitespace characters preceding a newline will be removed by text editors automatically (either on file save or while editing the file).

Naming ideas

• trim_trailing_whitespace
• trim_trailing_spaces
• allow_trailing_space

Support in Editors

Sublime Text 2

• By default does not show trailing whitespace. Can show all whitespace by setting draw_white_space to true.
• Trims trailing whitespace on save with the option trim_trailing_white_space_on_save set to true.

Vim

• By default does not show trailing whitespace. To show it, turn on 'list' option (:set list).
• Trimming trailing whitespace automatically or manually is possible. See this tip.

Geany

• Does not show whitespace by default. Visible whitespace can be toggled using the View > Editor > Show White Space option.
• Trims trailing whitespace on file save when the "Strip trailing spaces and tabs" option is enabled

Notepad++

• Does not show trailing white spaces by default. Can be turned on by View -> Show Symbol -> Show End of Line.
• Can manually trim trailing white chars by Edit->Blank Operations->Trim Trailing Space.

jEdit

• Does not show trailing white spaces by default. Viewing trailing white spaces can be turned on. Click on Utilities -> Global Options... -> jEdit -> Text Area, then check the End of line markers checkbox.