ZLExpress is a scripting language that supports business rules, expressions (Boolean combinations), special mathematical formula calculations, syntax analysis, and other features. Simplified code, minimal dependencies, 130k jar package (smaller than QLExpress) suitable for all Java runtime environments
<groupId>io.github.csuwl</groupId>
<artifactId>ZLExpress</artifactId>
<version>1.0.10-RELEASE</version>ZLExpress zlExpress = new ZLExpress();
Object result = zlExpress.process("ds=543;ds>56;", null, null);
System.out.println(process);//support +,-,*,/,<,>,<=,>=,==,!=, Operators such as in, not,&&(and),||(or),like,etc，
// "if", "else", "for", "break", "continue" and other statements,
// supporting custom functions. Support creating Java objects and calling methods.
n = 10;
sum = 0;
return sum+n;
int sumFunc(int d,int s){
return d+s;
}
sum = sumFunc(n,m);
if(543 in [748,654,87,543,654,7654]){
print(date("2024-12-06")," ",date("2024-02-08"));
}else{
return false;
}import java.math.BigInteger;
bigInt = new BigInteger();
bigInt2 = bigInt.add(bigInt);// Call object methodsZLExpress has base type: int/Int,double/double,string/String,Bool/bool/boolean,Array/array
int i=543;
Int intValue=i;
s = "fdsa";
double dd=654.4532;
arr=[654,76556,,876,9];int add(int a, int b){
return a + b;
};
int sub(int a, int b){
return a - b;
};
a = 10;
return add(a, 4) + sub(a, 9);Specifying high-precision parameter when creating ZLExpress object
ZLExpress zlExpress = new ZLExpress(true);
Object process = zlExpress.process(" id = -43 ; id==-43;", null, null);
assertEquals(process,true);agoDay(today - comparisonDate > someValue): Used to check if a date is more than a certain number of days ago.
recentDay(today - date <= someValue): Used to check if a date falls within the past few days.
dds = now();
dds agoDay 3;// false
dds recentDay 3;// true
dds = "2024-12-01";
dds agoDay 3; // true
dds recentDay 3 // falseCustom extension functions are implemented through SPI mechanism. Create a META-INF.services folder in the resources directory, Then create "com.csuwl.innerfunction.ExtenderCustomFunctionInterface" file, And filled in the file with the class reference name that implements "com.csuwl.innerfunction.ExtenderCustomFunctionInterface".
import com.csuwl.innerfunction.ExtenderCustomFunctionInterface;
import com.csuwl.model.InnerFunctionDefinition;
import java.util.Arrays;
import java.util.List;
/**
* custom function
* prettyPrint
*/
public class CustomPrintFunction implements ExtenderCustomFunctionInterface {
@Override
public Object visit(List<Object> parameterValue) {
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append("[");
for (int i = 0; i < parameterValue.size(); i++) {
stringBuilder.append(parameterValue.get(i));
}
stringBuilder.append("]");
System.out.println(stringBuilder.toString());
return null;
}
@Override
public List<InnerFunctionDefinition> getInnerFunctionDefinition() {
return Arrays.asList(new InnerFunctionDefinition("prettyPrint"),new InnerFunctionDefinition("myPrint"));
}
}Thank you very much for your interest in the ZLExpress project. We welcome your suggestions, comments (including criticisms) and contributions to the ZLExpress project. Your suggestions, comments and contributions on ZLExpress can be made directly through GitHub's Issues. If you have some bugfix, you can submit a "Pull Request" to the "dev" branch.
Invite individuals who have the time and capability to compile the ZLExpress syntax code into Java bytecode and execute it during program runtime.
- email:1105865632@qq.com