[m-rev.] for review: Add additional mdb aliases.

[Peter Wang]

scripts/mdbrc.in:
    Add default mdb aliases:
	n e pp bw st bt u (d) lv cur bi del dis en cond cv l pld
	q Q exit depth lines size width

    The 'd' alias has been changed from 'stack' to 'down'.
    There are two new aliases for 'stack': 'bt' and 'st'.

    Reorder aliases to match documentation.

doc/user_guide.texi:
    Update list of default aliases in the Quick overview section,
    with a short description of the common commands that have been
    aliased.

diff --git a/doc/user_guide.texi b/doc/user_guide.texi
index 367ddd0fd..a6804c677 100644
--- a/doc/user_guide.texi
+++ b/doc/user_guide.texi
@@ -1444,33 +1444,112 @@ At the end is the file name and line number of the
 called procedure and (if available) also the file name
 and line number of the call.
 
-The most useful @code{mdb} commands have single-letter abbreviations.
-The @samp{alias} command will show these abbreviations:
+The most useful @code{mdb} commands have short abbreviations.
+The @samp{alias} command will show these abbreviations.
+Here are the default aliases grouped:
 
 @example
-mdb> alias
+h      =>    help
 ?      =>    help
+
 EMPTY  =>    step
 NUMBER =>    step
-P      =>    print *
-b      =>    break
-c      =>    continue
-d      =>    stack
-f      =>    finish
+s      =>    step
 g      =>    goto
-h      =>    help
-p      =>    print
+n      =>    next -a
+f      =>    finish
+e      =>    exception
+c      =>    continue
 r      =>    retry
-s      =>    step
+
 v      =>    vars
+p      =>    print
+pp     =>    print -p
+P      =>    print *
+bw     =>    browse --web
+
+st     =>    stack
+bt     =>    stack
+u      =>    up
+d      =>    down
+lv     =>    level
+cur    =>    current
+
+b      =>    break
+bi     =>    break info
+del    =>    delete
+dis    =>    disable
+en     =>    enable
+cond   =>    condition
+cv     =>    condition -v
+
+l      =>    list
+pld    =>    push_list_dir
+
+q      =>    quit
+Q      =>    quit -y
+exit   =>    quit
+
+depth  =>    format_param depth
+lines  =>    format_param lines
+size   =>    format_param size
+width  =>    format_param width
 @end example
 
+The @samp{step} command can be used to step forward by one or more events.
+As mentioned above, you can also enter an empty line or a number of steps.
+
+The @samp{goto} command continues execution until a given event number.
+
+The @samp{next} command can be used to skip over a call.
+
+The @samp{finish} command will continue execution
+to the end of the current call.
+
+The @samp{exception} command continues execution
+until the program throws an exception.
+
+The @samp{continue} command will continue execution
+until the end of the program.
+
+The @samp{retry} command can restart execution of the current call,
+or an earlier call.
+
+The @samp{vars} command will print the names of known variables
+in the current environment.
+
+The @samp{print} command can be used to display the value of a variable.
+Without any arguments, it displays the current goal.
+
+The @samp{pp} or @samp{print -p} command will pretty print the
+value of a variable or goal.
+
 The @samp{P} or @samp{print *} command will display the values
 of any live variables in scope.
-The @samp{f} or @samp{finish} command can be used if you want
-to skip over a call.
-The @samp{b} or @samp{break} command can be used to set breakpoints.
-The @samp{d} or @samp{stack} command will display the call stack.
+
+The @samp{bw} or @samp{browse --web} command will open a web browser
+to inspect a term.
+
+The @samp{stack} command will display the call stack.
+
+The @samp{up}, @samp{down} and @samp{level} commands
+will move up and down the call stack.
+
+The @samp{current} commands will display the current event.
+
+The @samp{break} command can be used to set breakpoints.
+The @samp{break info} command will list existing breakpoints.
+The @samp{delete}, @samp{disable}, @samp{enable} commands will
+delete, disable or enable breakpoints.
+
+The @samp{condition} command can be used to
+attach a condition to the most recent breakpoint.
+
+The @samp{list} command will list the source code for the
+current environment.
+The @samp{push_list_dir} command tells the debugger
+where to find the source files.
+
 The @samp{quit} command will exit the debugger.
 
 That should be enough to get you started.
diff --git a/scripts/mdbrc.in b/scripts/mdbrc.in
index bebbed6fd..c0c485aac 100644
--- a/scripts/mdbrc.in
+++ b/scripts/mdbrc.in
@@ -1,18 +1,40 @@
 source @DEFAULT_MERCURY_DEBUGGER_DOC@
+alias	h	help
+alias	?	help
 alias	s	step
 alias	g	goto
+alias	n	next -a
 alias	f	finish
+alias	e	exception
+alias	c	continue
 alias	r	retry
 alias	v	vars
 alias	p	print
+alias	pp	print -p
 alias	P	print *
-alias	d	stack
-alias	c	continue
+alias	bw	browse --web
+alias	st	stack
+alias	bt	stack
+alias	u	up
+alias	d	down
+alias	lv	level
+alias	cur	current
 alias	b	break
-alias	h	help
-alias	?	help
-alias	excp	exception
-alias	e	exception
+alias	bi	break info
+alias	del	delete
+alias	dis	disable
+alias	en	enable
+alias	cond	condition
+alias	cv	condition -v
+alias	l	list
+alias	pld	push_list_dir
+alias	q	quit
+alias	Q	quit -y
+alias	exit	quit
+alias	depth	format_param depth
+alias	lines	format_param lines
+alias	size	format_param size
+alias	width	format_param width
 alias	EMPTY	step
 alias	NUMBER	step
 alias	!	shell
-- 
2.22.0