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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
package net.sourceforge.plantuml.tim;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import net.sourceforge.plantuml.text.StringLocated;
import net.sourceforge.plantuml.tim.expression.TValue;
import net.sourceforge.plantuml.tim.expression.TokenStack;

public class EaterFunctionCall extends Eater {

	private final List values = new ArrayList<>();
	private final Map namedArguments = new HashMap();
	private final boolean isLegacyDefine;
	private final boolean unquoted;

	public EaterFunctionCall(StringLocated s, boolean isLegacyDefine, boolean unquoted) {
		super(s);
		this.isLegacyDefine = isLegacyDefine;
		this.unquoted = unquoted;
	}

	@Override
	public void analyze(TContext context, TMemory memory) throws EaterException, EaterExceptionLocated {
		skipUntilChar('(');
		checkAndEatChar('(');
		skipSpaces();
		if (peekChar() == ')') {
			checkAndEatChar(')');
			return;
		}
		while (true) {
			skipSpaces();
			if (isLegacyDefine) {
				final String read = eatAndGetOptionalQuotedString();
				final String value = context.applyFunctionsAndVariables(memory, getLineLocation(), read);
				final TValue result = TValue.fromString(value);
				values.add(result);
			} else if (unquoted) {
				if (matchAffectation()) {
					final String varname = eatAndGetVarname();
					skipSpaces();
					checkAndEatChar('=');
					skipSpaces();
					final String read = eatAndGetOptionalQuotedString();
					final String value = context.applyFunctionsAndVariables(memory, getLineLocation(), read);
					final TValue result = TValue.fromString(value);
					namedArguments.put(varname, result);
				} else {
					final String read = eatAndGetOptionalQuotedString();
					final String value = context.applyFunctionsAndVariables(memory, getLineLocation(), read);
					final TValue result = TValue.fromString(value);
					values.add(result);
				}
//				}
			} else {
				if (matchAffectation()) {
					final String varname = eatAndGetVarname();
					skipSpaces();
					checkAndEatChar('=');
					skipSpaces();
					final TokenStack tokens = TokenStack.eatUntilCloseParenthesisOrComma(this).withoutSpace();
					tokens.guessFunctions();
					final TValue result = tokens.getResult(getLineLocation(), context, memory);
					namedArguments.put(varname, result);
				} else {
					final TokenStack tokens = TokenStack.eatUntilCloseParenthesisOrComma(this).withoutSpace();
					tokens.guessFunctions();
					final TValue result = tokens.getResult(getLineLocation(), context, memory);
					values.add(result);
				}
			}
			skipSpaces();
			final char ch = eatOneChar();
			if (ch == ',') {
				continue;
			}
			if (ch == ')') {
				break;
			}
			if (unquoted) {
				throw EaterException.located("unquoted function/procedure cannot use expression.");
			}
			throw EaterException.located("call001");
		}
	}

	public final List getValues() {
		return Collections.unmodifiableList(values);
	}

	public final Map getNamedArguments() {
		return Collections.unmodifiableMap(namedArguments);
	}

	public final String getEndOfLine() throws EaterException {
		return this.eatAllToEnd();
	}

}