On Mon, Nov 25, 2013 at 6:04 AM, Ryan Campbell Cunningham < rvskmbr...@gmail.com> wrote:
> Configuration Information [Automatically generated]: > Machine: x86_64 > OS: linux-gnu > Compiler: gcc > Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' > -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-pc-linux-gnu' > -DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' > -DSHELL -DHAVE_CONFIG_H -I. -I../bash -I../bash/include -I../bash/lib > -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector --param=ssp-buffer-size=4 > -Wformat -Werror=format-security -Wall > uname output: Linux ryan-MacBook 3.11.0-12-generic #19-Ubuntu SMP Wed Oct > 9 16:20:46 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux > Machine Type: x86_64-pc-linux-gnu > > Bash Version: 4.2 > Patch Level: 45 > Release Status: release > > Description: > I would like to request that Bash delete the character > immediately preceding a '#', provided the '#' > > * does not begin a new word, > * is not included in any quoted string or variable, > * is not preceded by a '\', and > * is only found in an interactive command line (not > in a script* or Bash initialization argument). > > An exception: If the character immediately preceding > is also a '#', Bash should skip backward to the previous > non-'#' character and delete as much characters as the > number of consecutive '#' characters after them in the > same word. > > Before enabling this feature, Bash should check if the > terminal has support for the Backspace key and/or for > the Delete key. If Bash could not find support for > either key, then this feature should be enabled and any > attempt to disable this feature should be denied. There > should also be options to manually enable this feature, > if either key is broken but still works, or if both keys > are broken but still work. Those options should be > > * to enable the feature through a command line**; > * to enable the feature through a "bashrc" or > "bash_profile" file, which Bash loads at startup***; > and > * to enable the feature through a build-time option. > > The build-time options should be to hard-code the feature > so it is always enabled****, or to allow the user to enable > and disable it*****. > > (The request was inspired by an article in the seventh > edition of the UNIX Programmer's Manual. This feature > is not required by POSIX, but came from the traditional > Bourne shell.) > > *Bash should be able to enable this feature in a script > by force (using the --sd-script-force initialization > option and the "sd-script-force" "shopt" option). > > **Either through the "shopt" option "sharp-delete" or the > initialization command "bash --sharp-delete". > > ***In the same manner as is done on a command line. > > ****Through the "configure" option > "--with-sharp-delete-always". > > *****Or to not build it at all, with the option > "--without-sharp-delete" or the option "--no-sharp-delete". > > There are a lot of details and even an obscure reference, but I don't understand what you want (something to happen when you press the delete key?) or why it would be interesting.
