67 lines
1.7 KiB
Java
67 lines
1.7 KiB
Java
package serene.simple;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.Scanner;
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import java.io.BufferedReader;
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import java.io.ByteArrayInputStream;
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import java.io.Console;
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import java.io.FileInputStream;
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public class Main {
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public static void main(String[] args) throws IOException {
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if (args.length == 0) {
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startRepl();
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return;
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}
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runSerene(args[0]);
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}
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private static void startRepl() throws IOException {
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Scope rootScope = Scope.getRootScope();
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Console console = System.console();
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System.out.println("Serene 'simple' v0.1.0");
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while(true) {
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String inputData = console.readLine("serene-> ");
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//String inputData = "(fn (x) x)";
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if (inputData == null) break;
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ByteArrayInputStream inputStream = new ByteArrayInputStream(inputData.getBytes());
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try {
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ListNode<Node> nodes = Reader.read(inputStream);
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Object result = ListNode.EMPTY;
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for (Node n : nodes) {
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result = n.eval(rootScope);
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}
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if (result != ListNode.EMPTY) {
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System.out.print(";; ");
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System.out.println(result.toString());
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}
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}
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catch(Exception e) {
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System.out.println("Error: ");
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e.printStackTrace(System.out);
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}
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}
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}
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private static void runSerene(String filePath) throws IOException {
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Scope rootScope = Scope.getRootScope();
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ListNode<Node> nodes = Reader.read(new FileInputStream(filePath));
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for (Node n : nodes) {
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n.eval(rootScope);
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}
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}
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}
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