Sometimes you need to convert values from one data type to another.
In the functions that convert one data type to another, sometimes a format pattern of a date or any number must be defined. Also a locale and time zone can have an influence on their formatting.
For detailed information about date formatting and/or parsing see Date and Time Format.
For detailed information about formatting and/or parsing of any numeric data type see Numeric Format.
For detailed information about locale see Locale.
For detailed information about time zones see Time Zone.
Note | |
---|---|
Remember that numeric and date formats are displayed using system
value Locale or Locale specified in the For more information on how Locale and Time zone may be changed in the |
Here we provide the list of these functions:
byte base64byte(
string input)
;
The base64byte()
function converts
the input
string in base64
representation to an
array of bytes.
Its counterpart is the function byte2base64.
If the input
is null
, the function
returns null
.
Example 66.1. Usage of base64byte
The function base64byte("YWJj")
returns abc
.
See also: byte2base64
string bits2str(
byte input)
;
The bits2str()
function
converts an array of bytes to a string consisting of two
characters: "0"
or "1"
.
Each byte is represented by eight characters ("0" or "1"). For each byte, the lowest bit is at the beginning of these eight characters. The counterpart is the function str2bits.
If the input
is null
, the function
returns null
.
Example 66.2. Usage of bits2str
The function bits2str(str2byte("ab"))
returns 1000011001000110
.
Let's display the result for better legibility as 1000 0110 0100 0110
.
The first eight bits are taken from a
(code 0x61
)
and following bits are taken from b
(code 0x62
).
See also: str2bits
integer bool2num(
boolean input)
;
The bool2num()
function
converts the boolean input
to either integer
1
(if the argument is true
)
or integer 0
(if the
argument is false
).
If the input
is null
, the function returns
null
.
Example 66.3. Usage of bool2num
The function bool2num(true)
returns 1
.
The function bool2num(false)
returns 0
.
See also: num2bool
string byte2base64(
byte input)
;
string byte2base64(
byte input, boolean wrap)
;
The byte2base64()
function converts
an array of bytes to a string in
base64
representation.
The function with one input parameter wraps the encoded lines after 76 characters.
The ability of the function with 2 parameters to wrap lines is affected by the second parameter.
If the wrap
parameter is set to true
,
the encoded lines are wrapped after 76 characters.
If the input
byte array is null
, the function
returns null
.
Example 66.4. Usage of byte2base64
The function byte2base64(str2byte("abc", "utf-8"))
returns YWJj
.
The function str2byte
used in the example
is needed for conversion of abc
from string to bytes as the function byte2base64
needs to have bytes as an argument.
See also: base64byte, byte2hex, byte2str
string byte2hex(
byte input)
;
string byte2hex(
byte input, string escapeChars)
;
The byte2hex()
function
converts an array of bytes to a string in
hexadecimal
representation.
If the input
is null
,
the function returns null
.
The escapeChars
are prepended before hexadecimal characters of each byte.
If the escapeChars
is null
, empty string, or the function has only one argument,
nothing is escaped.
Compatibility notice: The function byte2hex(input,escapeChars)
is available since 4.4.1.
Example 66.5. Usage of byte2hex
The function byte2hex(str2byte("abc", "utf-8"))
returns 616263
.
The function byte2hex(str2byte("abc", "utf-8"),null)
returns 616263
.
The function byte2hex(str2byte("abc", "utf-8"),"")
returns 616263
.
The function byte2hex(str2byte("abc", "utf-8"),"\\")
returns \61\62\63
.
The function byte2hex(str2byte("abc", "utf-8"),"hello")
returns hello61hello62hello63
.
See also: byte2base64, byte2str, hex2byte
string byte2str(
byte payload, string charset)
;
The byte2str()
function
converts an array of bytes to a string using a given charset.
If the charset
is null
, the function fails with an error.
If the payload
is null,
the function returns null
.
Example 66.6. Usage of byte2str
The function byte2str(hex2byte("616263"), "utf-8")
returns string abc
.
See also: byte2base64, byte2hex, str2byte
long date2long(
date input)
;
The date2long()
function
converts a date argument to the long data type.
The return value is
the number of milliseconds elapsed from January 1,
1970, 00:00:00 GMT
to the date specified as the
argument.
If the input
is null
, the function returns
null
.
Example 66.7. Usage of date2long
The function date2long(str2date("2009-02-13 23:31:30", "yyyy-MM-dd HH:mm:ss", "en.GB", "GMT+0"))
returns 1234567890000
.
integer date2num(
date input, unit timeunit)
;
integer date2num(
date input, unit timeunit, string locale)
;
The date2num()
returns the number of the specified
time units from the date using system or specified locale.
The date
parameter is a date to be converted.
If the input
date is null
, the function returns
null
.
The unit of field timeunit
can be one of the following: year
,
month
, week
,
day
, hour
,
minute
, second
,
millisec
. The unit must be specified as a
constant. It can neither be received through an edge nor set as
a variable.
If the function takes two arguments, it returns
an integer using the system locale. If the parameter locale
is used, the function uses the locale from the locale
parameter instead of the system locale.
If the time unit is contained in the date, it is
returned as an integer number. If it is not contained, the
function returns 0
.
Important | |
---|---|
Remember that months are
numbered starting from |
The default time zone is used in the conversion.
Example 66.8. Usage of date2num
The function date2num(2008-06-12, month)
returns
6
.
The function date2num(2008-06-12, hour)
returns 0
.
The function date2num(long2date(1234567890000L), year, "en.US")
returns 2009
.
The function date2num(long2date(1234567890000L), year, "th.TH")
returns 2552
.
See also: date2long, date2str, getYear, getMonth, getDay, getHour, getMinute, getSecond, getMillisecond
string date2str(
date input, string pattern)
;
string date2str(
date input, string pattern, string locale)
;
string date2str(
date input, string pattern, string locale, string timeZone)
;
The date2str()
function
converts the input
date to the string data type
according to the specified
pattern
,
locale
and target timeZone
.
The input
contains date to be converted to the string.
If the input
date is null
, the function
returns null
.
The pattern
describes date and time format.
If the pattern
is null
,
default value is used.
The locale
parameter defines what date format symbols should be used.
If the locale
is null
or an empty
string or the function does not have the locale
parameter,
the respective default value is used.
If the timeZone
parameter
is null
or an empty string or the function does
not have the locale
parameter,
the default time zone value is used.
Example 66.9. Usage of date2str
The function date2str(2008-06-12, "dd.MM.yyyy")
returns the
following string:
"12.6.2008"
.
The function
date2str(2009-01-04, "yyyy-MMM-d", "fr.CA")
returns
2009-janv.-4
.
The function
date2str(2009-01-04 12:38:06, "yyyy-MMM-d HH:mm:ss z", "fr.CA", "GMT-5")
returns
"2009-janv.-4 06:38:06 GMT-05:00"
(assuming that the default time zone is GMT+1).
See also: date2long, date2num, str2date, getYear, getMonth, getDay, getHour, getMinute, getSecond, getMillisecond
number decimal2double(
decimal arg)
;
The decimal2double()
function converts a decimal argument to a double value.
The conversion is narrowing. And, if the decimal
value cannot be converted into double
(as the range of the double
data type does not cover all decimal
values), the function
fails with an error.
On the other hand, any double
can be converted into decimal
.
Both Length and Scale of a decimal can be adjusted for it.
If the input is null
, the function returns null
.
Example 66.10. Usage of decimal2double
The function decimal2double(9007199254740991D)
returns 9.007199254740991E15
.
The input decimal number fit into double precisely.
The function decimal2double(92378352147483647.23D)
returns
9.2378352147483648E16
.
The function decimal2double(9007199254740993D)
returns 9.007199254740992E15
.
The input number is too big to fit into the double
data type precisely.
Narrowing conversion is used and input decimal number is rounded.
See also: decimal2integer, decimal2long, round, roundHalfToEven
integer decimal2integer(
decimal arg)
;
The decimal2integer()
function converts a decimal argument to an integer.
The conversion is narrowing. And, if the decimal
value cannot be converted into integer
(as the range of the integer
data type does not cover the range of decimal
values), the function
fails with an error.
On the other hand, any integer
can be converted into decimal
without a loss of precision. Length of decimal
can be adjusted for it.
If the input is null
, the function returns null
.
Note | |
---|---|
There is no function |
Example 66.11. Usage of decimal2integer
The function decimal2integer(352147483647.23D)
fails with an error as the input decimal number is out of range of the integer data type.
The function decimal2integer(25.95D)
returns 25
.
The function decimal2integer(-123.45D)
returns -123
.
See also: decimal2double, decimal2long, round, roundHalfToEven
long decimal2long(
decimal arg)
;
The decimal2long()
function converts a decimal argument to a long value.
The conversion is narrowing. And if the decimal
value cannot be converted into long
(as the range of long
data type does not cover all decimal
values), the function
fails with an error.
On the other hand, any long
can be converted into decimal
without loss of precision. Length of a decimal
can be adjusted for it.
If the input is null
, the function returns null
.
Note | |
---|---|
There is no function |
Example 66.12. Usage of decimal2long
The function decimal2long(9759223372036854775807.25D)
fails with an error as the input decimal number is out of range of data type long
.
The function decimal2long(72036854775807.79D)
returns 72036854775807
.
See also: decimal2double, decimal2integer, round, roundHalfToEven
integer double2integer(
number arg)
;
The double2integer()
function converts a number argument to an integer.
The conversion is narrowing. And, if a double
value cannot be converted into integer
(as the range of double
data type does not cover all integer
values), the function
fails with an error.
On the other hand, any integer
can be converted into double
without loss of precision.
If the input is null
, the function returns null
.
Example 66.13. Usage of double2integer
The function double2integer(352147483647.1)
fails with an error as the input does not fit into integer data type.
The function double2integer(25.757197)
returns 25
.
See also: round, roundHalfToEven
long double2long(
number arg)
;
The double2long()
function converts a number argument to long
.
The conversion is narrowing. And, if a double
value cannot be converted into long
(as the range of double
data type does not cover all long
values), the function
fails with an error.
On the other hand, any long
can always be converted into double
;
however, the user should take into account that a loss of precision may occur.
If the input argument is null
, the function returns null
.
Example 66.14. Usage of double2long
The function double2long(1.3759739E23)
fails with an error.
The function double2long(25.8579)
returns 25
.
See also: double2integer, round, roundHalfToEven
byte hex2byte(
string arg)
;
The hex2byte()
function converts
a string argument in hexadecimal
representation
to an array of bytes. Its counterpart is the
function byte2hex.
If the input is null
, the function returns
null
.
Example 66.15. Usage of hex2byte
The function hex2byte("616263")
returns bytes 0x61
, 0x62
, 0x63
.
string json2xml(
string arg)
;
The json2xml()
function takes one
string argument that is JSON
formatted
and converts it to an XML
formatted string.
Its counterpart is the function
xml2json.
Parsing of an input does not have to result in a valid XML
structure.
For example, if the root element of input json contained array the xml document with more than one root element would be created.
If the input is an invalid JSON formatted string or null
,
the function fails with an error.
Example 66.16. Usage of json2xml
The function json2xml('{ "element1" : { "id" : "0", "date" : "2011-11-07" }, "element0" : { "id" : "1", "date" : "2012-10-12" }}')
returns <element0><id>1</id><date>2012-10-12</date></element0><element1><id>0</id><date>2011-11-07</date></element1>
.
See also: xml2json
date long2date(
long arg)
;
The long2date()
function
converts a long argument to a date.
It adds the argument
number of milliseconds to January 1, 1970, 00:00:00
GMT
and returns the result as a date. Its counterpart is
function date2long.
If the input is null
, the function returns
null
.
Example 66.17. Usage of long2date
The function long2date(1234567890000L)
returns 2013-02-13 23:31:30
.
See also: date2long
integer long2integer(
long arg)
;
The long2integer()
function converts a long argument to an integer value.
The conversion is successful only if it is possible without any loss of information, otherwise the function fails with an error.
On the other hand, any integer
value can be converted into a long
number
without a loss of precision.
If the input is null
, the function
returns null
.
Example 66.18. Usage of long2integer
The function long2integer(352147483647L)
fails with an error.
The function long2integer(25)
returns
25
.
byte
long2packDecimal(
long arg)
;
The long2packDecimal()
function
converts a long data type argument to the representation of packed decimal
number. It is the counterpart of
the function packDecimal2long.
If the input is null
, the function
returns null
.
Example 66.19. Usage of long2packDecimal
The function long2packDecimal(256L)
returns bytes %l
.
The result can be seen as 256C
using hexadecimal notation.
See also: packDecimal2long
byte md5(
byte arg)
;
byte md5(
string arg)
;
The md5()
function
calculates an MD5
hash value of the argument.
If the input is null
, the function
fails with an error.
If the input string may contain a non-ascii character,
it is recommended to convert the input string to an array of byte manually
using the function str2byte
to the bytes and than use the function md5
.
Example 66.20. Usage of md5
Use byte2hex()
to convert MD5
hash from a byte array to a usual string representation of 32 hexadecimal digits.
For example, byte2hex(md5sum("abcd"))
returns e2fc714c4727ee9395f324cd2e7f331f
.
boolean num2bool(
<numeric type> arg)
;
The num2bool()
function converts a numeric type to boolean.
The function takes
one argument of any numeric data type (integer
, long
,
number
, or decimal
) and
returns boolean false
for 0 and true
for any
other value.
If the input is null
, the function returns
null
.
Example 66.21. Usage of num2bool
The function num2bool(0)
returns false
.
The function num2bool(3.1)
returns true
.
See also: bool2num
string num2str(
<numeric type> arg)
;
string num2str(
integer | long | double arg, integer radix)
;
string num2str(
<numeric type> arg, string format)
;
string num2str(
<numeric type> arg, string format, string locale)
;
The num2str()
converts any numeric type to the string decimal representation.
The function takes
one argument of any numeric data type (integer
, long
,
number
, or decimal
)
and converts it to a string in decimal representation.
If the input is null
, the function
returns null
.
The radix
enables to convert the input number
to a different radix-based numerical system, e.g. to the octal numerical system.
For both integer
and long
data types,
any integer number can be used as radix.
For the data type double (number
) only 10 or 16 can be used as radix.
The format
describes format of number.
If the parameter is missing, the Numeric Format is used.
If the locale
parameter is missing, the locale has system value.
Example 66.22. Usage of num2str
The function num2str(123456)
returns 123456
.
The function num2str(123456L)
returns 123456
.
The function num2str(123456.45)
returns 123456.45
.
The function num2str(123456.67D)
returns 123456.67
The function num2str(123, 8)
returns 173
.
The function num2str(123L, 8)
returns 173
The function num2str(123.75, 8)
fails.
Double as first argument works with base = 10 and base = 16 only.
The function num2str(4.0, 16)
returns 0x1.0p2
.
The function num2str(123456, "###,###")
returns 123,456
.
The function num2str(123456L, "###,###")
returns 123,456
.
The function num2str(123456.25, "###,###.#")
returns 123,456.2
.
The function num2str(123456.75D "###,###.##")
returns 123,456.75
.
The function num2str(123456, "###,###", "fr.FR")
returns 123 456
.
The function num2str(123456L, "###,###", "fr.FR")
returns 123 456
.
The function num2str(123456.75, "###,###.##", "fr.FR")
returns 123 456,75
.
The function num2str(123456.25D, "###,###.##", "fr.FR")
returns 123 456,25
.
See also: str2double, toString
long packDecimal2long(
byte arg)
;
The packDecimal2long()
function
converts an array of bytes whose meaning is the packed decimal
representation of a long number to a long number.
If the input is null
, the function returns
null
.
Example 66.23. Usage of packDecimal2long
The function packDecimal2long(hex2byte("256C12"))
returns 256
.
See also: long2packDecimal
byte sha(
byte arg)
;
byte sha(
string arg)
;
The sha()
function calculates
SHA-1
hash value of a given byte array or for a given string argument.
If the input is null
, the function
fails with an error.
If the input string may contain a non-ascii character, it is recommended to convert the input string to an array of bytes manually using the function str2byte.
Example 66.24. Usage of sha
Use byte2hex()
to convert SHA-1
hash from a byte array to a string representation of 40 hexadecimal digits.
For example byte2hex(sha("abcd"))
returns 81fe8bfe87576c3ecb22426f8e57847382917acf
.
byte sha256(
byte arg)
;
byte sha256(
string arg)
;
The sha256()
function calculates a
SHA-256
hash value of a given array of bytes or of a given string argument.
If the input is null
, the function
fails with an error.
If the input string may contain a non-ascii character, it is recommended to convert the input string to an array of bytes manually using the function str2byte.
Example 66.25. Usage of sha256
Use the byte2hex()
function to convert SHA-256
hash from a byte array to the usual string representation of 64 hexadecimal digits.
For example byte2hex(sha256("abcd"))
returns
88d4266fd4e6338d13b845fcf289579d209c897823b9217da3e161936f031589
.
byte str2bits(
string arg)
;
The str2bits()
function
converts a given string argument to an array of bytes.
The string can contain only characters:
"1"
and "0"
.
Each character "1"
of a string is converted to the bit 1
,
each character "0"
is converted to the bit 0
.
If the number of characters in the string is not an integral multiple of eight,
the string is completed by "0" characters from the right.
Then, the string is converted to an array of bytes as if the number of its characters were integral multiple of eight.
The first character represents the lowest bit.
If the input is null
, the function
returns null
.
If the input contains any other character, the function str2bits()
fails.
Compatibility notice: The functionality str2bits()
has been changed in Clover version 3.5.0
.
In the earlier versions, all characters not being 1
have been considered as 0
.
The function call str2bits("A010011001100110")
is correct in Clover 3.4,
but the same function call fails with an error in Clover 3.5.
Example 66.26. Usage of str2bits
The function str2bits("0010011001100110")
returns bytes containing df
.
The function str2bits("0A10011001100110")
fails with an error. See compatibility notice.
See also: bits2str
boolean str2bool(
string arg)
;
The str2bool()
function
converts a given string argument to the corresponding boolean
value.
The string can be one of the following:
"TRUE"
, "true"
,
"T"
, "t"
,
"YES"
, "yes"
,
"Y"
, "y"
,
"1"
, "FALSE"
,
"false"
, "F"
,
"f"
, "NO"
,
"no"
, "N"
,
"n"
, "0"
. The strings are
converted to boolean true
or boolean
false
.
If the input is null
, the function
returns null
.
Example 66.27. Usage of str2bool
The function str2bool("true")
returns true
.
The function str2bool("True")
fails.
The string True
(with uppercase T and lowercase rest of the letters) is not allowed value.
The function str2bool("NO")
returns false
.
See also: str2bits, str2bool, str2date, str2decimal, str2double, str2integer, str2long
byte str2byte(
string payload, string charset )
;
The str2byte()
function
converts a string payload
to an array of bytes
using a given charset
encoder.
If the charset
is null
, the
function fails with an error. If the payload
is null
,
the function returns null
.
Example 66.28. Usage of str2byte
The function str2byte("grep", "utf-8")
returns bytes 0x67
, 0x72
,
0x65
and 0x70
.
The function str2byte("voilà", "utf-8")
returns bytes
0x76
, 0x6f
, 0x69
,
0x6c
, c3
and a0
.
date str2date(
string input, string pattern)
;
date str2date(
string input, string pattern, boolean strict)
;
date str2date(
string input, string pattern, string locale)
;
date str2date(
string input, string pattern, string locale, boolean strict)
;
date str2date(
string input, string pattern, string locale, string timeZone)
;
date str2date(
string input, string pattern, string locale, string timeZone, boolean strict)
;
The str2date()
function converts the
input
to the date data type using the specified
pattern
,
locale
and
timeZone
.
The input
must correspond with the pattern
.
Otherwise the function fails.
If the input
is null
, the function
returns null
.
If the pattern
is null
or an empty string,
the default date format is used.
If the locale
is null
or an empty string,
the respective default value is used instead.
If the timeZone
is null
or an empty string,
the respective default value is used instead.
If strict
is true
,
date format is checked using a conversion from string to date,
conversion from date to string and subsequent comparison of an input string and result string.
If the input string and result string differ, the function fails.
This way you can enforce required number of digits in date.
If strict
is null
or the function does not have the argument strict
,
it works in the same way as if it was set to false
-
the format is not checked in the strict way.
Compatibility notice: The functions str2date(string, string, boolean)
,
str2date(string, string, string, boolean)
and str2date(string, string, string, string, boolean)
are available since CloverETL 4.1.0.
Example 66.29. Usage of str2date
The function str2date("12.6.2008", "dd.MM.yyyy")
returns the
date 2008-06-12
in a local timezone.
The function str2date("12.6.2008", "dd.MM.yyyy", "cs.CZ")
returns the date 2008-06-12
in a local timezone.
The function
str2date("12.6.2008 13:55:06", "dd.MM.yyyy HH:mm:ss", "cs.CZ", "GMT+5")
returns the date 2008-06-12 13:55:06
in the "GMT+5" time zone.
The function
str2date("15-Dezember-2010","dd-MMMM-yyyy", "de.DE")
returns 15 December 2010
in a local timezone, interpreting the month name using the German locale.
The function
str2date("6.007.2015", "dd.MM.yyyy", false)
returns 6 July 2015
whereas the function str2date("6.007.2015", "dd.MM.yyyy", true)
fails.
The function str2date("2015-10-04", "iso-8601:yyyy-MM-dd")
returns 2015-10-04
in a local timezone.
The function str2date("2015-10-04", "iso-8601:date")
returns 2015-10-04
in a local timezone.
The function str2date("2015-10-05T06:07:02.123+00:00", "iso-8601:yyyy-MM-dd'T'H:m:sZZZ")
returns 2015-10-05 06:07:02.123
in the timezone +00:00
.
The function str2date("2015-10-05T06:07:02.123+00:00", "iso-8601:dateTime")
returns 2015-10-05 06:07:02.123
in the timezone +00:00
.
The function str2date("2015-10-05T06:07:02.234Z", "iso-8601:yyyy-MM-dd'T'H:m:sZZZ")
returns 2015-10-05 06:07:02.234
in the timezone +00.00
.
The function
str2date("2015-06-15 00:00:10 America/New_York","joda:yyyy-MM-dd HH:mm:ss ZZZ")
returns 2015-06-15 00:00:10
in timezone America/New_York that corresponds to 2015-06-15 04:00:10
in UTC.
decimal str2decimal(
string arg)
;
decimal str2decimal(
string arg, string format)
;
decimal str2decimal(
string arg, string format, string locale)
;
The str2decimal()
function
converts a given string argument to a decimal value.
The conversion can be determined by the format specified as the second argument and the locale specified as the third argument.
The arg
is a numeric value to be converted to the decimal.
If the argument is null
, the function returns
null
.
The format
determines the data conversion.
See Numeric Format.
The locale
parameter is described in
Locale.
If the function is called without the locale parameter, the default
locale
is used.
Example 66.30. Usage of str2decimal
The function str2decimal("23")
returns 23
.
The function str2decimal("23.45")
returns 23.45
.
The function str2decimal("123.456789")
returns 123.45
.
The function str2decimal("123,456.78", "###,###.##")
returns 123456.78
.
The function str2decimal("123 456,78", "###,###.##", "fr.FR")
returns 123456.78
.
There should be a hard space (character 160) between 3
and 4
.
See also: str2double, str2integer, str2long, toString
number str2double(
string arg)
;
number str2double(
string arg, string format)
;
number str2double(
string arg, string format, string locale)
;
The str2double()
function
converts a given string argument to the corresponding double
value. The conversion can be determined by a format specified as the second argument and
a locale specified as the third argument.
The arg
is string to be converted to double.
If the argument is null
, the function returns
null
.
The format
is described in
Data Formats.
The locale
parameter is described in
Locale.
If the function is called without the locale
parameter,
the default locale
is used.
Example 66.31. Usage of str2double
The function str2double("123.25")
returns 123.25
.
The function str2double("123,456", "###,###")
returns 123456.0
The function str2double("123 456,25", "###,###.##", "fr.FR"")
returns 123456.25
.
There must must be a hard space between 3
and 4
.
integer str2integer(
string arg)
;
integer str2integer(
string arg, integer radix)
;
integer str2integer(
string arg, string format)
;
integer str2integer(
string arg, string format, string locale)
;
The str2integer()
function
converts a given string argument to the corresponding integer
value. The conversion can be determined by a numeral system, format or locale.
The parameter arg
is a numeric value
to be converted to integer.
If the argument is null
, the function returns
null
.
The parameter radix
enables to convert a
given string argument to integer using specified radix
based numeric system representation.
The format
is described in
Numeric Format.
The locale
is described in
Locale.
Example 66.32. Usage of str2integer
The function str2integer("123")
returns 123
.
The function str2integer("123.45")
fails as argument
in not an integer.
The function str2integer("12345678901")
fails as argument
does not fit into the integer
data type. The value is too big.
The function str2integer("101", 8)
returns 65
.
Value 101 in the octal numeral system is same as 65 in the decimal numeral system.
The function str2integer("123,456", "###,###")
returns 123456.
The function str2integer("123.456", "###,###", "de.DE")
returns 123456.
The function str2integer("123 456", "###,###", "fr.FR")
returns 123456.
There must be a hard space between digits 3 and 4.
See Space as group separator.
See also: toString
long str2long(
string arg)
;
long str2long(
string arg, integer radix)
;
long str2long(
string arg, string format)
;
long str2long(
string arg, string format, string locale)
;
The str2long()
function
converts a given string argument to a long value.
If the value is expressed in the radix
based numeric system, the
representation is specified by the second argument.
The conversion can be affected using a format specified as the second argument and the system locale.
The arg
is the value to be converted to long
.
If the argument is null
, the function returns
null
.
The radix
is radix of numeral system.
The format
is a format of the number to be converted.
See Numeric Format for details.
The locale
is described in
Locale.
Example 66.33. Usage of str2long
The function str2long("123456789012")
return 123456789012
The function str2long("123.45")
fails as argument is not a long number.
The function str2long("101", 8)
returns 65
.
The function str2long("123,456,789,012", "###.###")
returns 123456789012
.
The function str2long("123.456.789.012", "###,###", "de.DE")
returns 123456789012
See also: toString
string toString(
<numeric|boolean|list|map type> arg)
;
The toString()
function converts a given argument to its string representation.
It accepts any numeric data type, list of any data type, as well as map of any data types.
If the input arg
is null
, the function returns string "null".
Compatibility notice: The function toString(boolean)
is available since CloverETL 4.1.0.
Example 66.34. Usage of toString
Function toString(34)
returns 34
.
Function toString(1234567890123L)
returns 1234567890123
.
Function toString(1234.567)
returns 1234.567
.
Function toString(1234.567D)
returns 1234.567
.
Function toString(true)
returns true
.
See also: str2decimal, str2double, str2integer, str2long
string xml2json(
string arg)
;
The xml2json()
function
converts a string XML
formatted argument
to a JSON
formatted string. Its counterpart is the
function json2xml.
If the input is null
, the function
fails with an error.
Example 66.35. Usage of xml2json
The function
xml2json('<element0><id>1</id><date>2012-10-12</date></element0><element1><id>0</id><date>2011-11-07</date></element1>')
returns { "element1" : { "id" : "0", "date" : "2011-11-07" }, "element0" : { "id" : "1", "date" : "2012-10-12" }}
.
See also: json2xml