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Table 36-10 lists the available operators for recipe files; Table 36-11 lists the available functions for recipe files.
| Operator | Description |
|---|---|
?
v
|
Force interpretation of
v
as a variable, (rather than as a pre-defined function)
|
| Integer operators | Description |
n
++
|
Return
n
and then increment its value.
n
must have an integer value.
|
n
--
|
Return
n
and then decrement its value.
n
must have an integer value.
|
++
n
|
Increment the value of
n
and then return it.
n
must have an integer value.
|
--
n
|
Decrement the value of
n
and then return it.
n
must have an integer value.
|
| Infix operations | Description |
s
[
i
]
|
Return the
i
th character of
s
; see Section 36.8.1 for additional discussion of string indexing.
|
l
[
i
]
|
Return the
i
th element of
l
; see Section 36.8.1 for additional discussion of string indexing.
|
s
[
i
,
j
]
|
Return the
i
th through
j
th characters of
s
; see Section 36.8.1 for additional discussion of string indexing.
|
l
[
i
,
j
]
|
Return the
i
th through
j
th elements of
l
; see Section 36.8.1 for additional discussion of list indexing.
|
| Function | Description |
|---|---|
allof(
i1[
,
i2...]
)
|
Returns a nonzero value if all of
i1
,
i2
, ... are nonzero; returns 0 otherwise.
|
abs(
i
)
|
Return the absolute value of
i
.
|
any(
s1
,
s2
)
|
Return 2 if any character in
s1
appears as the first character of
s2
; return 0 otherwise.
|
anyof(
i1[
,
i2...]
)
|
Returns a nonzero value if any of
i1
,
i2
, ... are nonzero, returns 0 if all are zero.
|
bal(
c1
,
c2
,
c3
,
s
)
|
Scan
s
looking for an occurence of a character in
c1
that is balanced with respect to
c2
and
c3
. Returns the position of the first balanced
c3
character in
s
if one is found,
length(
s)+1
if no
c3
character is found but the string as a whole is balanced, or 0 if the
string isn't balanced.
|
chr(
i1[
,
i2...]
)
|
Returns a string containing successive characters with decimal values
i1
,
i2
, ...
|
debug(
s
)
|
Outputs
s
to a debug log file.
|
defined(
s
)
|
Returns 1 if
s
is defined as a variable; return 0 otherwise.
|
find(
s1
,
s2
,
i
,
j
)
|
Returns the position in
s2
of the first occurence of
s1
in
s2[
i:
j]
.
|
find(
s
,
l
,
i
,
j
)
|
Returns the position in
l
of the first list element from
l[
i:
j]
that matches
s
.
|
getenv(
s
)
|
Return value of logical name (OpenVMS) or environment variable (unix
and NT)
s
. Returns the empty string if
s
is not defined. Note that
s
is case sensitive.
|
integer(
e
)
|
Converts
e
to an integer. If
e
is already an integer it is returned unchanged; if
e
is a string it is read as a sequence of ASCII digits. If
e
is a list it must contain one element and is treated in the same way a
string would be.
|
lcase(
e
)
|
Converts any upper case characters in
e
to lower case. If
e
is a number it is converted to a string.
|
left(
s1
,
i[
,
s2]
)
|
Returns leftmost
i
characters of
s1
. If
i
is greater than
length(
s1)
the result is padded with
s2
. As much of
s2
as is necessary will be used; if
s2
is too short it will be used multiple times.
s2
defaults to a space if it is omitted.
|
left(
l1
,
i[
,
l2]
)
|
Returns leftmost
i
elements of
l1
. If
i
is greater than
length(
l1)
the result is padded with
l2
. As much of
l2
as is necessary will be used; if
l2
is too short it will be used multiple times.
l2
defaults to one empty list element if it is omitted.
|
length(
s
)
|
Returns the number of 8-bit characters in the string
s
.
|
length(
l
)
|
Returns the number of elements in the list
l
.
|
list(
s
,
n
)
|
Returns a list
n
elements long with each element equal to
s
.
|
list(
l
,
n
)
|
Returns a list consisting of
n
copies of
l
.
|
max(
i
,
j[
,
...]
)
|
Returns the largest element in a set of integers. |
max(
s1
,
s2[
,
...]
)
|
Returns the largest element in a set of strings. |
min(
i
,
j[
,
...]
)
|
Returns the smallest element in a set of integers. |
min(
s1
,
s2[
,
...]
)
|
Returns the smallest element in a set of strings. |
repl(
s
,
j
)
|
Returns a string consisting of
j
concatentations of
s
.
|
repl(
l
,
j
)
|
Returns a list consisting of
j
concatentations of
l
.
|
reverse(
s
)
|
Reverses all the characters in
s
and returns the result.
|
reverse(
l
)
|
Reverses all the elements in
l
and returns the result.
|
right(
s1
,
i[
,
s2]
)
|
Returns rightmost
i
characters of
s1
. If
i
is greater than
length(
s1)
the result is padded with
s2
. As much of
s2
as is necessary will be used; if
s2
is too short it will be used multiple times.
s2
defaults to a space if it is omitted.
|
right(
l1
,
i[
,
l2]
)
|
Returns rightmost
i
elements of
l1
. If
i
is greater than
length(
l1)
the result is padded with
l2
. As much of
l2
as is necessary will be used; if
l2
is too short it will be used multiple times.
l2
defaults to one empty list element if it is omitted.
|
sign(
i
)
|
Returns -1 if
i
< 0, 0 if
i
= 0, +1 if
i
> 0.
|
sort(
l1[
,
i[
,
l2]]
)
|
Sorts the elements of
l1
to be in ascending order if
i
<> 0 and descending order if
i
= 0.
i
defaults to 1 if it is omitted. If
l2
is present its elements are shifted in the same way as elements in
l1
are shifted.
|
split(
s[
,
c[
,
i]]
)
|
Produces a list of elements consisting of pieces of
s
delineated by characters in
c
. If omitted
c
defaults to a comma. If
i
is 0 or 1, zero length elements are preserved; if
i
is 2, they are not. If omitted
i
defaults to 1.
|
split(
l[
,
c[
,
i]]
)
|
Produces a list of elements consisting of pieces of elements of
l
delineated by characters in
c
. If omitted
c
defaults to a comma. If
i
is 0, boundaries between the original elements aren't preserved and
zero length elements can be output; if
i
is 1, boundaries are preserved and zero length elements can be output;
if
i
is 2, boundaries aren't preserved and zero length elements are omitted.
If omitted
i
defaults to 1.
|
string(
e
)
|
Converts
e
to a string. If
e
is already a string it is returned unchanged. If
e
is an integer it is converted to a string. If
e
is a list, the string that results from concatenating the elements of
e
is returned.
|
translate(
s1
,
s2
,
s3
)
|
Interprets the string
s1
as being in the character set specified by
s2
and returns a version translated into the character set specified by
s3
.
|
trim(
s[
,
c]
)
|
Returns
s
with any trailing characters found in
c
removed.
c
defaults to space and tab if omitted.
|
trim(
l[
,
c]
)
|
Returns
l
with any trailing characters found in
c
removed from each element.
c
defaults to space and tab if omitted.
|
type(
e
)
|
Returns "integer" if
e
evaluates to an integer, "string" if
e
evaluates to a string, and "list" if
e
evaluates to a list.
|
ucase(
e
)
|
Converts any lower case characters in
e
to upper case. If
e
is a number it is converted to a string.
|
| Date function | Description |
datetimeprop(
s1
,
s2
)
|
If
s1
is null, then the current date and time in RFC 822/RFC 1123
format will be returned in
s2
. Otherwise,
s1
should be an RFC 822/RFC 1123 date-time string, and
s2
one of
"month",
"lmonth",
"zone",
"tzone",
"day",
"mday",
"wday",
"yday",
"weekday",
"8601",
"822", or
"822Z". Returns the requested component of the date-time,
or the date-time in the requested format.
|
| Directory function | Description |
gettag(
x
)
|
If
x
evalutes to a string, returns the tag character for that string. If
x
evaluates to a list, returns the default and per-element tags as a
string. An error will be returned if
x
evalutes to anything other than a string or list.
|
makeDN(
l
)
|
Returns a canonical DN (Distinguished Name).
l
must be a list containing an even number of elements, organized as
attribute, value, attribute, value,
etc.
|
settag(
x
,
y
)
|
Sets the tag or tags of
x
to
y
.
x
can be either a string or a list. If
x
is a string, then
y
must be a one character string. If
x
is a list, then
y
must be a string of length
length(
x)+1
and the first character of
y
must be a space.
|
36.8.3.1 Site-defined Mapping Table Functions
Sites can use PMDF mapping tables to establish additional functions.
Any mapping table named DIRSYNC_func-name in the PMDF mapping
table establishes a new function, func-name, available within
recipe files. For instance, a mapping
DIRSYNC_PO_TO_ORG poA org-unit1 poB org-unit2 |
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