binutils-gdb/gdb/doc
Patrick Palka fc637f04c7 Add option to remove duplicate command history entries
This patch implements the new option "history remove-duplicates", which
controls the removal of duplicate history entries ("off" by default).

The motivation for this option is to be able to reduce the prevalence of
basic commands such as "up" and "down" in the history file.  These
common commands crowd out more unique commands in the history file (when
the history file has a fixed size), and they make navigation of the
history file via ^P, ^N and ^R more inconvenient.

The option takes an integer denoting the number of history entries to
look back at for a history entry that is a duplicate of the latest one.
"history remove-duplicates 1" is equivalent to bash's ignoredups option,
and "history remove-duplicates unlimited" is equivalent to bash's
erasedups option.

[ I decided to go with this integer approach instead of a tri-state enum
  because it's slightly more flexible and seemingly more intuitive than
  leave/erase/ignore.  ]

gdb/ChangeLog:

	* NEWS: Mention the new option "history remove-duplicates".
	* top.c (history_remove_duplicates): New static variable.
	(show_history_remove_duplicates): New static function.
	(gdb_add_history): Conditionally remove duplicate history
	entries.
	(init_main): Add "history remove-duplicates" option.

gdb/doc/ChangeLog:

	* gdb.texinfo (Command History): Document the new option
	"history remove-duplicates".

gdb/testsuite/ChangeLog:

	* gdb.base/history-duplicates.exp: New test.
2015-06-26 11:05:56 -04:00
..
a4rc.sed
agentexpr.texi
all-cfg.texi
annotate.texinfo
ChangeLog Add option to remove duplicate command history entries 2015-06-26 11:05:56 -04:00
doxy-index.in
Doxyfile-base.in
Doxyfile-gdb-api.in
Doxyfile-gdb-xref.in
Doxyfile-gdbserver.in
fdl.texi
filter-for-doxygen
filter-params.pl
gdb.texinfo Add option to remove duplicate command history entries 2015-06-26 11:05:56 -04:00
gpl.texi
guile.texi
lpsrc.sed
Makefile.in
observer.texi
psrc.sed
python.texi Clarify doc about memory read/write and non-8-bits addressable memory unit sizes 2015-06-15 15:31:00 -04:00
refcard.tex
stabs.texinfo Remove special support in gdb for Sun's version of stabs. 2015-06-19 11:34:43 -07:00
stack_frame.eps
stack_frame.pdf
stack_frame.png
stack_frame.svg
stack_frame.txt