first commit

source/decompiled/de/maxhenkel/voicechat/commodore/file/Lexer.java

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+/*
+ * Decompiled with CFR 0.152.
+ */
+package de.maxhenkel.voicechat.commodore.file;
+
+import de.maxhenkel.voicechat.commodore.file.AbstractIterator;
+import de.maxhenkel.voicechat.commodore.file.ParseException;
+import de.maxhenkel.voicechat.commodore.file.Token;
+import de.maxhenkel.voicechat.commodore.file.TokenStream;
+import java.io.IOException;
+import java.io.Reader;
+import java.io.StreamTokenizer;
+
+class Lexer
+extends AbstractIterator<Token>
+implements TokenStream {
+    private final StreamTokenizer tokenizer;
+    private boolean end = false;
+
+    Lexer(Reader reader) {
+        this.tokenizer = new StreamTokenizer(reader);
+        this.tokenizer.resetSyntax();
+        this.tokenizer.wordChars(33, 126);
+        this.tokenizer.quoteChar(34);
+        this.tokenizer.whitespaceChars(0, 32);
+        "{};".chars().forEach(this.tokenizer::ordinaryChar);
+        this.tokenizer.slashSlashComments(true);
+        this.tokenizer.slashStarComments(true);
+    }
+
+    @Override
+    protected Token computeNext() throws ParseException {
+        if (this.end) {
+            return (Token)this.endOfData();
+        }
+        try {
+            int token = this.tokenizer.nextToken();
+            switch (token) {
+                case -1: {
+                    this.end = true;
+                    return Token.ConstantToken.EOF;
+                }
+                case -3: {
+                    return new Token.StringToken(this.tokenizer.sval);
+                }
+                case 123: {
+                    return Token.ConstantToken.OPEN_BRACKET;
+                }
+                case 125: {
+                    return Token.ConstantToken.CLOSE_BRACKET;
+                }
+                case 59: {
+                    return Token.ConstantToken.SEMICOLON;
+                }
+            }
+            throw this.createException("Unknown token: " + (char)token + "(" + token + ")");
+        }
+        catch (IOException e) {
+            throw this.createException(e);
+        }
+    }
+
+    @Override
+    public ParseException createException(String message) {
+        return new ParseException(message, this.tokenizer.lineno());
+    }
+
+    @Override
+    public ParseException createException(Throwable cause) {
+        return new ParseException(cause, this.tokenizer.lineno());
+    }
+
+    @Override
+    public ParseException createException(String message, Throwable cause) {
+        return new ParseException(message, cause, this.tokenizer.lineno());
+    }
+}
+