Re: gnuplot terminates unexpectedly

[sfeam (E. Merritt) <eam...@gm...>]

On Sunday, March 20, 2011, Bastian Märkisch wrote:
> 
> >On Sunday, March 20, 2011, Hans-Bernhard Bröker wrote:
> >> On 18.03.2011 10:39, Bastian Märkisch wrote:
> >> >
> >> > Currently the builtin readline causes gnuplot to terminate
> >> > if ^D (DEL) is entered on an empty line.
> >> 
> >> That's been the default behaviour of Unix command line shells since the 
> >> beginning of time().  Some let you change that, some don't.
> >> 
> >>  > Would the following
> >> > trivial change have any negative side effect?
> >> 
> >> I suspect it would surprise some long-time users.
> >
> >Including me :-)
> >That's what ^D is supposed to do.  It means "End of File".
> >
> >	Ethan 
> 
> Ok. The problem is that the builtin readline maps the DEL key
> to ^D on Windows. So "DEL" terminates gnuplot there. So you 
> can accidentally close gnuplot while editing.

From the top of the file readline.c

/* NANO-EMACS line editing facility
 * printable characters print as themselves (insert not overwrite)
 * ^A moves to the beginning of the line
 * ^B moves back a single character
 * ^E moves to the end of the line
 * ^F moves forward a single character
 * ^K kills from current position to the end of line
 * ^P moves back through history
 * ^N moves forward through history
 * ^H and DEL delete the previous character
 * ^D deletes the current character, or EOF if line is empty
 * ^L/^R redraw line in case it gets trashed
 * ^U kills the entire line
 * ^W kills last word
 * LF and CR return the entire line regardless of the cursor postition
 * EOF with an empty line returns (char *)NULL
 *
 * all other characters are ignored
 */

Curiosly, the full information on ^D is not given in the help file.