Tests if the letters in a character string are uppercase.
$isupper(string)| string | a character string or an expression that evaluates to a character string |
1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).
This function tests if a particular character string is uppercase, i.e., contains no lowercase letters.
$isupper("aBC")Evaluates to $False.
$isupper(43)
Evaluates to $True.
Tests if a character string contains only letters.
$isalphabetic(string)| string | a character string or an expression that evaluates to a character string |
1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).
This function tests if a particular character string is alphabetic.
$isalphabetic("abc")Evaluates to $True.
$isalphabetic("abc1")Evaluates to $False.
Tests if the letters in a character string are lowercase.
$islower(string)| string | a character string or an expression that evaluates to a character string |
1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).
This function tests if a particular character string is lower case, i.e., contains no uppercase letters.
$islower("Abc")Evaluates to $False.
$islower(34)
Evaluates to $True.
Provides a default value for an expression that can be $Null.
$value(expression1,expression2)
| expression1 | any expression |
| expression2 | any expression |
Same as the selected expression.
If expression1 is not $Null, $value returns the value of expression1; otherwise, it returns the value of expression2.
detail line "Employee Number: " $value(EmpNum,"N/A")
Traps $Null values in a report and replaces them with “N/A”.
File system path where one of the Zim executables started.
A character string. Cannot be reset by an application program.
C:\MyDirSubDir> zxclient -n mybase
After invoking ZXCLIENT, in the prompt:
> OUTPUT $startpath C:\MyDirSubDir
Determines the day name associated with a specified date value.
$dayname(date)| date | a data, or an expression that evaluates to a date, in the form YYYYMMDD |
Character string.
This function extracts day information from standard date values. Date is often the system variable $Date.
The values returned by the $dayname function can be altered with the Language Customizer utility.
$dayname (19991225)
Evaluates to “Saturday”.
$dayname ($date+7)
Evaluates to “Saturday” when $Date is 19991225.
Tests if a character string contains only letters and digits.
$isalphanumeric(string)| string | a character string or an expression that evaluates to a character string |
1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).
This function tests if a particular character string is alphanumeric.
$isalphanumeric("abc1")Evaluates to $True.
$isalphanumeric("abc ")Evaluates to $False.
Left-justifies a character string.
$leftjustify(string)| string | a character string or an expression that evaluates to a character string |
Character string.
String is left-justified in a space that is $length(string) characters long. Leading spaces in string are ignored.
$leftjustify(" abcde")Evaluates to “abcde “.
$leftjustify(var1)
Evaluates to “3 ” if var1 is a LONGINT variable whose value is 3 (occupies 12 character spaces when converted to a string).
Returns the absolute value of a number.
$absolute(number)where
| number | a number, or an expression that evaluates to a number |
Number, positive, with the same number of decimal places as number.
Use $absolute to ensure that a number is positive (for functions such as $sqrt, for example). $absolute returns the absolute (unsigned) value of a number. The absolute value is always treated as positive.
Certain functions – for example, $sqrt – accept only positive arguments. You can use $absolute to ensure that all arguments to these functions are positive.
$sqrt($absolute(-0.98))
evaluates as if it were:
$sqrt(0.98)
Converts alphabetic characters to lower case.
$tolower(source)| source | any value, or an expression that yields any value |
Character string.
Returns a character string in which all letters are lower case. If source is not of a character data type, it is converted to a character data type before the function is applied.
$tolower("the QUICK BROWN fox is 30 years oLD")Evaluates to “the quick brown fox is 30 years old”.
output "Do you want output to go to the printer? (y/n)"
input <1>
if $tolower("#<1>") = "y" % makes user response case insensitive
set output printer
endifEnsures that the user response is case-insensitive.
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