[PATCH] gdb: Rewrite documentation for layout and focus commands.

[Andrew Burgess <andrew dot burgess at embecosm dot com>]

The following patch changes the documentation for the layout and focus
commands.  Though I have extended the documentation for layout
slightly most of this patch is really about reformatting the layout of
the documentation.

The change is really just my personal preference, but I think the new
layout is clearer, do people agree?

Thanks,
Andrew

---

Changes the documentation for the layout and focus commands.

Instead of documenting each layout (or focus) sub-command as a separate
command, document a single layout (and focus) command which takes a
parameter, then list the possible parameters in a table nested under
each command.

The documentation for the layout command has been extended little to
make it clearer which windows are shown in each layout.

gdb/ChangeLog:

	* doc/gdb.texinfo (TUI): Restructure documentation on TUI layout
	and focus commands.
---
 gdb/ChangeLog       |  5 +++++
 gdb/doc/gdb.texinfo | 49 +++++++++++++++++++++++++++++++++----------------
 2 files changed, 38 insertions(+), 16 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 201af51..bbc0291 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2015-07-06  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* doc/gdb.texinfo (TUI): Restructure documentation on TUI layout
+	and focus commands.
+
 2015-07-02  Kevin Buettner  <kevinb@redhat.com>
 
 	* rx-tdep.c (RX_USP_REGNUM, RX_BPC_REGNUM): New constants.
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 812917b..509e1db 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -25070,43 +25070,60 @@ Disable TUI mode, returning to the console interpreter.
 @kindex info win
 List and give the size of all displayed windows.
 
-@item layout next
+@item layout @var{name}
 @kindex layout
+Changes which TUI windows are displayed.  In each layout the command
+window is always displayed, the value of @var{name} controls which
+additional windows are also displayed, and can be any of the
+following:
+
+@table @code
+@item next
 Display the next layout.
 
-@item layout prev
+@item prev
 Display the previous layout.
 
-@item layout src
-Display the source window only.
+@item src
+Display the source and command windows.
 
-@item layout asm
-Display the assembly window only.
+@item asm
+Display the assembly and command windows.
 
-@item layout split
-Display the source and assembly window.
+@item split
+Display the source, assembly, and command windows.
 
-@item layout regs
-Display the register window together with the source or assembly window.
+@item regs
+When in @code{src} or @code{asm} layout the register window is
+displayed in addition to the existing source or assembler window.
+When in @code{split} layout then the register and assembler windows
+are displayed.  The command window is always displayed.
+@end table
 
-@item focus next
+@item focus @var{name}
 @kindex focus
+Changes which TUI window is currently active for scrolling.  The value
+of @var{name} can be any of the following:
+
+@table @code
+@item next
 Make the next window active for scrolling.
 
-@item focus prev
+@item prev
 Make the previous window active for scrolling.
 
-@item focus src
+@item src
 Make the source window active for scrolling.
 
-@item focus asm
+@item asm
 Make the assembly window active for scrolling.
 
-@item focus regs
+@item regs
 Make the register window active for scrolling.
 
-@item focus cmd
+@item cmd
 Make the command window active for scrolling.
+@end table
 
 @item refresh
 @kindex refresh
-- 
2.4.0