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Each time a FOREACH command is
executed, name is set to the next expression value
in value_list prior to the execution of cmdlist. Execution ends
when there are no more expression values in the value_list. Syntax | |
FOREACH name value_list command
FOREACH name value_list { cmdlist }
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Parameters | |
- name
The name for the control variable that is set to the next expression value in value_list. A local variable is declared automatically,
and it can be referenced with the cmdlist. An optional type specification can be appended to the variable name, in order
to restrict/convert the values in the list to a specific desired type:
foreach j:S16 '1 2 3+4 5' {wl j }
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If the type specification is omitted, the type ANY is assumed. - value_list
This is a quoted string (or string variable) that contains a list of
values (expressions). The cmdlist is evaluated once for every
expression in the list. The list may contain string and or numeric expressions. - command
cmdlist
A single command (or command list) that is executed for each value in value_list.
Examples | |
%cmdebug > foreach j '1 2 3 "MOM" date 12.330' wl j
$1
$2
$3
MOM
WED. SEPT 3, 1986
$12.00000330
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A local variable j is assigned each of the expression values in the
value list string,
and the specified command references the current value of j in order to
write its value.
$nmdebug > foreach j '6 -2 "a" + "b" 3 +4' {wl j}
$4
"ab"
$7
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This example shows that full expression values are evaluated within the
value list.
$nmdebug > var nums '"1" "2" "3"'
$nmdebug > var lets '"A" "B" "C"'
$nmdebug > foreach l lets { foreach n nums {wl l n }}
A1
A2
A3
B1
B2
B3
C1
C2
C3
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This is an example of nested FOREACH commands that use string variables for their
value lists. |
