Epson RC170 Guia do Utilizador descarregar pdf (Página 170)

6. The SPEL+ Language

6.3 Commands and statements

Commands and statements consist of a SPEL

instruction followed by the parameters for

that instruction.

A command is executed immediately. You can execute commands from the Command

window or from the Macros dialog box.

Statements can be used only in programs.

Statements can include more than one SPEL

instruction by using a semi-colon (;) to

separate instructions.

The maximum length for a statement is 200 characters. This includes the line number.

6.4 Function and variable names (Naming restriction)

Function and variable names can include up to 32 alphanumeric characters and the

underscore character. Characters can be upper case or lower case.

The following names are valid:

Function main

Real real_var

Integer IntVar

Function and variable names cannot begin with a numeric digit or underscore.

The strings that are already used as keywords cannot be use. (Example: Go / On)

String variables must have an additional dollar sign ('$') suffix, as shown in the example

below:

Function Test

String modname$

Print "Enter model name:"

Line Input modname$

Print "model is ", modname$

Fend

Restriction for naming in SPEL+ language

- Characters can be alphanumeric characters or underscore character.

- Use alphabets for the first letter.

- Characters can be upper case or lower case.

- No keywords can be used.

- Maximum limits of names are as follows.

Name Max. limit

Point label 16

I/O label 16

User error label 16

Function name 32

Variable name 32

Line label 32

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