/*
 * Copyright 2013, Stephan Aßmus <superstippi@gmx.de>.
 * All rights reserved. Distributed under the terms of the MIT License.
 */
#ifndef MARKUP_PARSER_H
#define MARKUP_PARSER_H

#include "TextDocument.h"


class MarkupParser {
public:
                                                                MarkupParser();
                                                                MarkupParser(
                                                                        const CharacterStyle& characterStyle,
                                                                        const ParagraphStyle& paragraphStyle);

                        void                            SetStyles(
                                                                        const CharacterStyle& characterStyle,
                                                                        const ParagraphStyle& paragraphStyle);

                        const CharacterStyle& HeadingCharacterStyle() const
                                                                        { return fHeadingStyle; }
                        const ParagraphStyle& HeadingParagraphStyle() const
                                                                        { return fHeadingParagraphStyle; }

                        const CharacterStyle& NormalCharacterStyle() const
                                                                        { return fNormalStyle; }
                        const ParagraphStyle& NormalParagraphStyle() const
                                                                        { return fParagraphStyle; }

                        TextDocumentRef         CreateDocumentFromMarkup(const BString& text);
                        void                            AppendMarkup(const TextDocumentRef& document,
                                                                        const BString& text);

private:
                        void                            _InitStyles();

                        void                            _ParseText(const BString& text);
                        void                            _CopySpan(const BString& text,
                                                                        int32& start, int32 end);
                        void                            _ToggleStyle(const CharacterStyle& style);
                        void                            _FinishParagraph(bool isLast);

private:
                        CharacterStyle          fNormalStyle;
                        CharacterStyle          fBoldStyle;
                        CharacterStyle          fItalicStyle;
                        CharacterStyle          fBoldItalicStyle;
                        CharacterStyle          fHeadingStyle;

                        ParagraphStyle          fParagraphStyle;
                        ParagraphStyle          fHeadingParagraphStyle;
                        ParagraphStyle          fBulletStyle;

                        const CharacterStyle* fCurrentCharacterStyle;
                        const ParagraphStyle* fCurrentParagraphStyle;

                        // while parsing:
                        TextDocumentRef         fTextDocument;
                        Paragraph                       fCurrentParagraph;
                        int32                           fSpanStartOffset;
};


#endif // MARKUP_PARSER_H