Method readLine

src/stone/Lexer.java:42–68

()

        return true;
    }
    protected void readLine() throws ParseException {
        String line;
        try {
            line = reader.readLine();
        } catch (IOException e) {
            throw new ParseException(e);
        }
        if (line == null) {
            hasMore = false;
            return;
        }
        int lineNo = reader.getLineNumber();
        Matcher matcher = pattern.matcher(line);
        matcher.useTransparentBounds(true).useAnchoringBounds(false);
        int pos = 0;
        int endPos = line.length();
        while (pos < endPos) {
            matcher.region(pos, endPos);
            if (matcher.lookingAt()) {
                addToken(lineNo, matcher);
                pos = matcher.end();
            }
            else
                throw new ParseException("bad token at line " + lineNo);
        }
        queue.add(new IdToken(lineNo, Token.EOL));
    }
    protected void addToken(int lineNo, Matcher matcher) {
        String m = matcher.group(1);
        if (m != null) // if not a space