Merge pull request #14 from Instancify/feat/regex-functions

feat: added regex functions

Author: MEFRREEX

api/src/main/java/com/instancify/scriptify/api/exception/ScriptFunctionArgTypeException.java

@@ -1,5 +1,8 @@
 package com.instancify.scriptify.api.exception;
 
+import java.util.Collection;
+import java.util.stream.Collectors;
+
 /**
  * Exception for script function argument type mismatches.
  */
@@ -14,4 +17,18 @@ public class ScriptFunctionArgTypeException extends ScriptFunctionException {
     public ScriptFunctionArgTypeException(Class<?> required, Class<?> provided) {
         super("Required argument type: " + required + ", passed: " + provided);
     }
+
+    /**
+     * Creates an exception when argument types don't match.
+     *
+     * @param required The expected types
+     * @param provided The type that was given
+     */
+    public ScriptFunctionArgTypeException(Collection<Class<?>> required, Class<?> provided) {
+        super("Required argument types: " + createRequiredClassNames(required) + ", passed: " + provided);
+    }
+
+    private static String createRequiredClassNames(Collection<Class<?>> required) {
+        return required.stream().map(Class::getName).collect(Collectors.joining(" or "));
+    }
 }

core/src/main/java/com/instancify/scriptify/core/script/function/StandardFunctionManager.java

@@ -53,6 +53,8 @@ public StandardFunctionManager() {
         this.register(new ScriptFunctionListOf());
         this.register(new ScriptFunctionSetOf());
         this.register(new ScriptFunctionArrayOf());
+        this.register(new ScriptFunctionRegexPattern());
+        this.register(new ScriptFunctionRegexMatch());
     }
 
     @Override

core/src/main/java/com/instancify/scriptify/core/script/function/impl/util/ScriptFunctionRegexMatch.java

@@ -0,0 +1,45 @@
+package com.instancify.scriptify.core.script.function.impl.util;
+
+import com.instancify.scriptify.api.exception.ScriptFunctionArgTypeException;
+import com.instancify.scriptify.api.exception.ScriptFunctionArgsCountException;
+import com.instancify.scriptify.api.exception.ScriptFunctionException;
+import com.instancify.scriptify.api.script.Script;
+import com.instancify.scriptify.api.script.function.ScriptFunction;
+import com.instancify.scriptify.api.script.function.argument.ScriptFunctionArgument;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Set;
+import java.util.regex.Pattern;
+
+/**
+ * Represents a function to match regex pattern
+ */
+public class ScriptFunctionRegexMatch implements ScriptFunction {
+
+    @Override
+    public @NotNull String getName() {
+        return "regex_match";
+    }
+
+    @Override
+    public Object invoke(Script<?> script, ScriptFunctionArgument[] args) throws ScriptFunctionException {
+        if (args.length != 2) {
+            throw new ScriptFunctionArgsCountException(1, args.length);
+        }
+
+        Pattern pattern;
+        if (args[0].getValue() instanceof String regex) {
+            pattern = Pattern.compile(regex);
+        } else if (args[0].getValue() instanceof Pattern) {
+            pattern = (Pattern) args[0].getValue();
+        } else {
+            throw new ScriptFunctionArgTypeException(Set.of(String.class, Pattern.class), args[0].getType());
+        }
+
+        if (!(args[1].getValue() instanceof String value)) {
+            throw new ScriptFunctionArgTypeException(String.class, args[1].getType());
+        }
+
+        return pattern.matcher(value).matches();
+    }
+}

core/src/main/java/com/instancify/scriptify/core/script/function/impl/util/ScriptFunctionRegexPattern.java

@@ -0,0 +1,35 @@
+package com.instancify.scriptify.core.script.function.impl.util;
+
+import com.instancify.scriptify.api.exception.ScriptFunctionArgTypeException;
+import com.instancify.scriptify.api.exception.ScriptFunctionArgsCountException;
+import com.instancify.scriptify.api.exception.ScriptFunctionException;
+import com.instancify.scriptify.api.script.Script;
+import com.instancify.scriptify.api.script.function.ScriptFunction;
+import com.instancify.scriptify.api.script.function.argument.ScriptFunctionArgument;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.regex.Pattern;
+
+/**
+ * Represents a function to compile regex pattern.
+ */
+public class ScriptFunctionRegexPattern implements ScriptFunction {
+
+    @Override
+    public @NotNull String getName() {
+        return "regex_pattern";
+    }
+
+    @Override
+    public Object invoke(Script<?> script, ScriptFunctionArgument[] args) throws ScriptFunctionException {
+        if (args.length != 1) {
+            throw new ScriptFunctionArgsCountException(1, args.length);
+        }
+
+        if (!(args[0].getValue() instanceof String pattern)) {
+            throw new ScriptFunctionArgTypeException(String.class, args[0].getType());
+        }
+
+        return Pattern.compile(pattern);
+    }
+}