HP 3000 Manuals

System Debug Reference Manual

FOREACH 

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 }

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 }

                 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          A single command (or command list) that is executed for
cmdlist          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

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

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

This is an example of nested FOREACH commands that use string variables
for their value lists.

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.

MPE/iX 5.0 Documentation