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What are the "select-by-word" in gnome-terminal's preferences?

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"Select-by-word" characters are those characters that define words. They are used to determine which characters to select when doing double clicks.

Eg., if you have a-z@ in this list, a valid word would be a@z. If you then have a string like


and you make a double click over 'a', '@', or 'z', it will only select a@z, because '3' and '4' aren't valid word characters.

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See this question for an example. – ændrük Dec 16 '10 at 21:07
Has anyone found a general way to set these word boundaries GNOME-wide (i.e., not just in Terminal)? Or are they up to the developers of each GNOME application to define/redefine? Related question: . – Noyo Sep 26 '13 at 13:28

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