B4J Question [B4j] Using Macro language

[jinyistudio]

Hi

My idea !!
I could defined two variable(A,B) or more in WebAPP and I could key some expression in Webapp too. such as (a=100)and(b=100). this expression will send to Server side(Interpreter) running day by day and return true or false day by day. Tell me to do some thing.

 

[billzhan]

Which macro language? Could eval the expression with external interpreter (jshell lib)

Other possible solutions:
jPython (python)
https://www.b4x.com/android/forum/threads/jpython.61094/#post-396672

jBascilib (basic)
https://www.b4x.com/android/forum/threads/jbasiclib-library.35092/

jScriptEngine ( javascript)
https://www.b4x.com/android/forum/threads/jscriptengine.35781/

 

[Erel]

Another options:
[class] B4X Eval (expressions evaluator)

 

[jinyistudio]

hi

Expressions evalutor could including variable ?
Example: 100>A1>80 , if A1 assign 90, the result is true otherwise is false.

 

[Erel]

Expression Evaluator parses mathematical expressions and returns the results. It doesn't evaluate boolean expressions.

You can replace the variable with the actual value and then evaluate it.