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Strings
With
ETP-Basic, it is possible to have texts with characters
strings, and that, very easily. To declare a character
string, use the following syntax :
Public VariableName as String
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or
Local VariableName as String
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To affect a value to a string, use the same methods as for other variables. To concatenate, use the "&" operator.
Example:
Local str1 as String
Local str2 as String
Local together as String
str1 = "Hello "
str2 = "World !"
together = str1 & str2 |
Implicit Conversion :
The ETP-Basic compiler is able to make a conversion
to string. So, you can, for example, use variables
of types Integer or Long in an expression of string.
Example:
Local str as String
Local number as Integer
number = 23
str = "enemies : " & number
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In this example, the variable number was declared as an Integer, but it was used in the expression that affects the str string. In fact, there is an invisible conversion.
For speed reasons, String type is reduced to 50 characters. So you can't enter more than 50 characters in a string.
Using string parts :
In ETP standard library, there are some functions for using String parts. For example, the function Left gets the characters on the left of the string. So, when you write :
The variable str contains the 4 first letters of the string "enemies", that is "enem".
The Right function looks like this one, it returns the last characters of a string (on the right).
To have a part of the string in the middle of it, you can use the function called Mid.
str = Mid("Nice weather, isn't it ?",5,7)
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This line gets the part of the "Nice
weather, isn't it ?" string which begins
at the 5th letter with a length of 7 characters.
So str
contains "weather"
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