JavadocLexer.java 文件源码

/**
 * Adjust indentation inside `<pre>{@code` blocks.
 * <p>
 * <p>Also trim leading and trailing blank lines, and move the trailing `}` to its own line.
 */
private static ImmutableList<Token> deindentPreCodeBlocks(List<Token> input) {
    ImmutableList.Builder<Token> output = ImmutableList.builder();
    for (PeekingIterator<Token> tokens = peekingIterator(input.iterator()); tokens.hasNext(); ) {
        if (tokens.peek().getType() != PRE_OPEN_TAG) {
            output.add(tokens.next());
            continue;
        }

        output.add(tokens.next());
        List<Token> initialNewlines = new ArrayList<>();
        while (tokens.hasNext() && tokens.peek().getType() == FORCED_NEWLINE) {
            initialNewlines.add(tokens.next());
        }
        if (tokens.peek().getType() != LITERAL
                || !tokens.peek().getValue().matches("[ \t]*[{]@code")) {
            output.addAll(initialNewlines);
            output.add(tokens.next());
            continue;
        }

        deindentPreCodeBlock(output, tokens);
    }
    return output.build();
}