HP 3000 Manuals HP 3000 Manuals
MACECHO
Controls the "echoing" of each macro command line prior to its execution.
Syntax
MACECHO pattern [level]
Parameters
pattern The name(s) of the macro(s) for which echoing is to be
enabled/disabled.
This parameter can be specified with wildcards or with a
full regular expression. Refer to appendix A for
additional information about pattern matching and
regular expressions.
The following wildcards are supported:
@ Matches any character(s).
? Matches any alphabetic character.
# Matches any numeric character.
The following are valid name pattern specifications:
@ Matches everything; all names.
pib@ Matches all names that start with "pib".
log2##4 Matches "log2004", "log2754", and so on.
The following regular expressions are equivalent to the
patterns with wildcards that are listed above:
`.*`
`pib.*`
`log2[0-9][0-9]4`
level Echoing can be enabled or disabled (default). The
following values are valid:
0 Disabled (default).
1 Enabled.
Examples
$nmdat > macl @ all
macro driver
machelp = 'This macro calls macros "triple", "min", and "inc" in order' +
'to demonstrate the MACECHO, MACREF, and MACTRACE commands'
{ loc one 1;
loc two 2;
wl min ( triple(two) inc(one) )
}
macro inc
( num : ANY )
machelp = 'returns the increment of "num"'
{ loc temp num;
loc temp temp + 1;
return temp
}
macro min
( parm1 : ANY ,
parm2 : ANY )
machelp = 'returns the min of "parm1" or "parm2"'
{ if parm1 < parm2
then return parm1
else return parm2
}
macro triple
( input : ANY )
machelp = 'triples the parameter "input"'
{ return input *3
}
Assume that the macros listed above have been defined. A few of the
macros use local variables inefficiently, for the purpose of
demonstration.
$nmdat > driver
$2
When a macro is called, the commands in the macro body are typically
executed silently. They are not displayed as they are being executed.
In this example, macro driver executes silently, and only the expected
macro output is displayed.
$nmdat > macecho driver 1
$nmdat > driver
driver > loc one 1
driver > loc two 2
driver > wl min ( triple(two) inc(one) )
$2
In this example, echoing is enabled for macro driver. Then, when the
macro is executed, each command line in the macro body is displayed just
prior to the execution of that line.
$nmdat > macecho min 1
$nmdat > driver
driver > loc one 1
driver > loc two 2
driver > wl min ( triple(two) inc(one) )
min > if parm1 < parm2 then return parm1 else return parm2
min > return parm2
$2
In this example, echoing is enabled for macro min, in addition to macro
driver which remains enabled from above. Command lines are displayed for
both macros. Notice that the command lines for macro min are indented,
since it is called by macro driver. At each nested level of macro
invocation, an additional three blanks are added as indentation.
$nmdat > macecho @ 1
$nmdat > driver
driver > loc one 1
driver > loc two 2
driver > wl min ( triple(two) inc(one) )
triple > return input *3
inc > loc temp num
inc > loc temp temp + 1
inc > return temp
min > if parm1 < parm2 then return parm1 else return parm2
min > return parm2
$2
In this example, echoing is enabled for all ("@") currently defined
macros. Each command line, for every macro, is displayed before the
command line is executed.
$nmdat > macecho @
$nmdat > driver
$2
In this example, echoing is disabled for all macros. Since the level
parameter is not specified, the default of disabled is assumed.
Execution of the macro driver is silent once again.
$nmdat > macecho min 1
$nmdat > driver
min > if parm1 < parm2 then return parm1 else return parm2
min > return parm2
$2
$nmdat > macl @ echo
macro min echo
In this example, echoing is enabled for macro min. The command lines for
macro min are displayed, indented. The MACLIST command is used to
display all macros that currently have ECHO enabled, and macro min is
indicated.
Limitations, Restrictions
none
CAUTION The output format of all System Debug commands is subject to
change without notice. Programs that are developed to
postprocess System Debug output should not depend on the exact
format (spacing, alignment, number of lines, uppercase or
lowercase, or spelling) of any System Debug command output.