&IS-ALPHA

Examines an argument and returns 1 if the argument contains alphabetic characters only; otherwise returns 0.

Restriction: This topic applies only when the AppMaster Builder AddPack has been installed, and applies only to Windows platforms.

Syntax:

&IS-ALPHA (&variablename)

Aliases:

&is-alpha (&variablename)     &Is-Alpha (&variablename)
&isalpha (&variablename)      &IsAlpha (&variablename)
&ISALPHA (&variablename)

Comments:

If &variablename is numeric, &IS-ALPHA returns 0.
The original argument remains unchanged.
National characters such as #&$ are not considered alphabetic.

Examples:

&IS-ALPHA ("123")         = 0
&IS-ALPHA ("+123")        = 0
&IS-ALPHA ("-123")        = 0
&IS-ALPHA ("ABC")         = 1
&IS-ALPHA ("abc")         = 1
&IS-ALPHA ("abc%")        = 0
&IS-ALPHA ("")            = 0
&IS-ALPHA (1)             = 0