Control: retitle -1 xterm: VT100.backarrowKey initial value vs man page documentation
On 2015-01-21 22:38:53 +0100, Vincent Lefevre wrote: > Whether I run > > xterm -xrm "*VT100.backarrowKey: true" > > or > > xterm -xrm "*VT100.backarrowKey: false" > > the backarrow key gives the delete (127) character, while the xterm > man page says: > > backarrowKey (class BackarrowKey) > Specifies whether the backarrow key transmits a backspace (8) > or delete (127) character. This corresponds to the DECBKM > control sequence. A “true” value specifies backspace. The > default is “True”. Pressing the control key toggles this > behavior. > > This is actually the observed behavior only when backarrowKeyIsErase > is set to false: > > xterm -xrm "*backarrowKeyIsErase: false" -xrm ... > > I think that when backarrowKeyIsErase is set to true (the default), > this is the expected behavior, as described under backarrowKeyIsErase, > and that the man page description of backarrowKey is incorrect. > > So, I suppose that the default value of backarrowKey is "true" if > backarrowKeyIsErase is false; otherwise it depends... Actually this is not related to the default value (because the -xrm "*VT100.backarrowKey: ..." overrides the default value). What apparently happens is that the backarrowKey initial value is set from the stty erase character if backarrowKeyIsErase is true. This is just the initial value; the backarrowKey value can later be changed via the menu[*], for instance. [*] Backarrow Key (BS/DEL) Said otherwise, it seems that the initial value is: 1. obtained from the stty erase character if backarrowKeyIsErase is true; 2. otherwise obtained by an explicit setting of backarrowKey; 3. otherwise set to "True" (the default value). -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon) -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150121220454.ga21...@xvii.vinc17.org
