Tests if a character string is a valid object name.
$iszimname(string)| string | a character string or an expression that evaluates to a character string |
1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).
This function tests if a particular character string is valid zim object name.
$iszimname(189)
Evaluates to $False.
$iszimname("Fields")Evaluates to $True.
Determines the day-of-the-week number associated with a specified date value.
$weekday(date)| date | a date, 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.
$weekday(19981225)
Evaluates to “7”.
$weekday($date+7)
Evaluates to “7” when $Date is 19981225.
Tests if an expression produces a valid number after its evaluation.
$isnumber(expression)| string | a character string or an expression that evaluates to a character string |
1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).
This function tests if a particular character string is a valid number.
$isnumber(2+3)
Evaluates to $True.
$isnumber($trim(LastName))
Evaluates to $False.
Converts a character into its ordinal number value.
$toord(char)| char | a character string, or any expression that evaluates to a character string |
Number.
Each of the decimal numbers from 0 to 255 represents a character output by your workstation. $Toord converts the given character to the corresponding decimal number.
If char contains more than one character, only the first character is converted.
The number produced by the $toord function can be converted back to a character by the $tochr function.
$toord(" ")Evaluates to 32 (on ASCII machines).
$toord(tochr(anynumber ))
Evaluates to any number.
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.
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