From a52098c0304f32725b2425878d25fcb47bd32b17 Mon Sep 17 00:00:00 2001
From: Kraemerd <Dominic_Daniel.Kraemer@Student.Reutlingen-University.de>
Date: Sat, 7 Jan 2023 14:48:54 +0100
Subject: [PATCH] implemented better text output for the ParserExceptions
---
src/Parser.java | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/Parser.java b/src/Parser.java
index 358b187..7e341d1 100644
--- a/src/Parser.java
+++ b/src/Parser.java
@@ -84,7 +84,7 @@ public class Parser {
//parses a list of tokens into a value
private Optional<Expression> parseValue(List<Lexer.Token> ts) throws ParserException {
if (ts.isEmpty()) {
- throw new ParserException("SyntaxError: expected a number");
+ throw new ParserException("RuntimeException: empty token list");
}
if (ts.get(0).getType() != Lexer.TokenType.NUMBER) {
return Optional.empty();
@@ -114,13 +114,13 @@ public class Parser {
//parses a decimal of a list of tokens & a string
private Expression parseDecimal(List<Lexer.Token> ts, String data) throws ParserException {
if(ts.size()<1) {
- throw new ParserException("SyntaxError: ");
+ throw new ParserException("RuntimeException: empty token list");
}
if(ts.get(0).getType() != Lexer.TokenType.SPECIAL) {
- throw new ParserException("");
+ throw new ParserException("SyntaxException: expected a comma");
}
if(ts.get(1).getType() != Lexer.TokenType.NUMBER) {
- throw new ParserException("");
+ throw new ParserException("SyntaxException: expected a number after a comma");
}
Number beforeDot = (Number) parseNumber(data);
ts.remove(0);
--
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