1 files changed, 113 insertions, 0 deletions
diff --git a/src/producer.hpp b/src/producer.hpp
index c310e19..6aacddf 100644
--- a/src/producer.hpp
+++ b/src/producer.hpp
@@ -164,4 +164,117 @@ private:
 };
 
 
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Texo Strict Producer
+ * Converts switch-signal interface of Texo Producer into
+ * sequence of start/close signals with disjoint modificator sections,
+ * as well as block sections, which are provided on top level.
+ */
+class TexoProducerStrict: public TexoProducer {
+public:
+    TexoProducerStrict(TexoExporter & exporter);
+
+
+    bool End();
+
+
+    bool Put(char c);
+
+
+    bool Code();
+    bool Header(int level);
+    bool Paragraph();
+    bool Quote();
+
+
+    bool Bold();
+    bool Italic();
+    bool Mono();
+    bool Strike();
+    bool Underline();
+
+    bool Link(const ScriptVariable & path, const ScriptVariable & title);
+    bool Link();
+
+    bool PutImage(const ScriptVariable & src, const ScriptVariable & alt,
+        const ScriptVariable & title);
+    bool PutHorizontalRule();
+
+
+protected:
+    virtual bool TruePut(char c) = 0;
+
+    virtual bool StartCode()            = 0;
+    virtual bool StartHeader(int level) = 0;
+    virtual bool StartParagraph()       = 0;
+    virtual bool StartQuote()           = 0;
+
+    virtual bool CloseCode()            = 0;
+    virtual bool CloseHeader(int level) = 0;
+    virtual bool CloseParagraph()       = 0;
+    virtual bool CloseQuote()           = 0;
+
+
+    virtual bool StartBold()      = 0;
+    virtual bool StartItalic()    = 0;
+    virtual bool StartMono()      = 0;
+    virtual bool StartStrike()    = 0;
+    virtual bool StartUnderline() = 0;
+
+    virtual bool CloseBold()      = 0;
+    virtual bool CloseItalic()    = 0;
+    virtual bool CloseMono()      = 0;
+    virtual bool CloseStrike()    = 0;
+    virtual bool CloseUnderline() = 0;
+
+    virtual bool StartLink(
+        const ScriptVariable & link, const ScriptVariable & title)
+        = 0;
+    virtual bool CloseLink(
+        const ScriptVariable & link, const ScriptVariable & title)
+        = 0;
+
+
+    virtual bool TruePutImage(const ScriptVariable & src,
+        const ScriptVariable & alt, const ScriptVariable & title)
+        = 0;
+    virtual bool TruePutHorizontalRule() = 0;
+
+
+private:
+    enum Block { block_none = 0, code, header, paragraph, quote } block;
+
+    int header_level;
+
+
+    enum Mod { bold, italic, link, mono, strike, underline } mods[6];
+    int opened;
+
+    const ScriptVariable * link_link;
+    const ScriptVariable * link_title;
+
+
+    bool Start();  // Open paragraph if no block is opened.
+
+    bool CloseBlock();
+
+    bool SwitchMod(Mod mod);
+
+    bool OpenMod(Mod mod);
+
+    bool CloseMod(Mod mod);
+
+    // Close all opened mods sequentially, down to (including) last,
+    // returning count of closed mods, or negative number in case of error.
+    int CloseMods(Mod last);
+
+    // Close all opened mods.
+    bool CloseMods();
+
+    bool Reopen(int closed);
+
+    bool IsOpened(Mod mod) const;
+};
+
+
 #endif