Campbell Scientific CR3000 Micrologger - Manual (Page 505)

Appendix A. CRBasic Programming Instructions
505
A.7 String Functions
Read More! See String Operations
(p. 241)
& Concatenates string variables.
+ Concatenates string and numeric variables.
- Compares two strings, returns zero if identical.
A.7.1 String Operations
String Constants
Constant strings can be used in expressions using quotation marks. For
example:
FirstName = "Mike"
String Addition
Strings can be concatenated using the '+' operator. For example:
FullName = FirstName + " " + MiddleName + " " + LastName
String Subtraction
String1‐String2 results in an integer in the range of ‐255..+255.
String Conversion to/from Numerics
Conversion of strings to numerics and numerics to strings is done
automatically when an assignment is made from a string to a numeric or
a numeric to a string, if possible.
String Comparison Operators
The comparison operators =, >,<,<>, >= and <= operate on strings.
String Output Processing
The Sample() instruction will convert data types if the source data type
is different than the Sample() data type. Strings are disallowed in all
output processing instructions except Sample().
A.7.2 String Commands
ArrayLength
Returns the length of a variable array.
Syntax
ArrayLength(Variable)
ASCII
Returns the ASCII / ANSI code of a character in a string.
Syntax
Variable = ASCII(ASCIIString(1,1,X))