From 80e42b0f967a5753156447e0d3129bcbe934d23e Mon Sep 17 00:00:00 2001
From: Eduardo Bart <edub4rt@gmail.com>
Date: Sat, 21 May 2011 15:15:46 -0300
Subject: [PATCH 1/2] replace YAML with custom made library for reading text
 files named FML

---
 CMakeLists.txt                           |   4 +-
 src/framework/core/configs.cpp           |  29 +-
 src/framework/core/configs.h             |   2 +-
 src/framework/graphics/font.cpp          |  34 +--
 src/framework/platform/win32platform.cpp |   3 +
 src/framework/platform/x11platform.cpp   |   3 +
 src/framework/prerequisites.h            |   2 +-
 src/framework/script/luafunctions.cpp    |   2 +-
 src/framework/ui/uibuttonskin.cpp        |  14 +-
 src/framework/ui/uibuttonskin.h          |   2 +-
 src/framework/ui/uielementskin.cpp       |  47 ++-
 src/framework/ui/uielementskin.h         |   8 +-
 src/framework/ui/uilabelskin.cpp         |   2 +-
 src/framework/ui/uilabelskin.h           |   2 +-
 src/framework/ui/uiloader.cpp            | 164 +++++------
 src/framework/ui/uiloader.h              |  22 +-
 src/framework/ui/uiskins.cpp             |  91 ++----
 src/framework/ui/uitexteditskin.cpp      |   4 +-
 src/framework/ui/uitexteditskin.h        |   2 +-
 src/framework/ui/uiwindowskin.cpp        |  12 +-
 src/framework/ui/uiwindowskin.h          |   2 +-
 src/framework/util/color.h               |  10 +
 src/framework/util/fml.cpp               | 359 +++++++++++++++++++++++
 src/framework/util/fml.h                 | 217 ++++++++++++++
 src/framework/util/point.h               |   7 +
 src/framework/util/rect.h                |  11 +
 src/framework/util/size.h                |   9 +-
 src/framework/util/yaml.h                | 125 --------
 src/main.cpp                             |  51 ++--
 29 files changed, 827 insertions(+), 413 deletions(-)
 create mode 100644 src/framework/util/fml.cpp
 create mode 100644 src/framework/util/fml.h
 delete mode 100644 src/framework/util/yaml.h

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2d916483..3a98e782 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,6 @@ SET(Boost_USE_MULTITHREADED OFF)
 FIND_PACKAGE(Boost COMPONENTS system signals REQUIRED)
 FIND_PACKAGE(OpenGL REQUIRED)
 FIND_PACKAGE(Lua REQUIRED)
-FIND_PACKAGE(YamlCpp REQUIRED)
 FIND_PACKAGE(PhysFS REQUIRED)
 FIND_PACKAGE(GMP REQUIRED)
 FIND_PACKAGE(ZLIB REQUIRED)
@@ -33,7 +32,6 @@ INCLUDE_DIRECTORIES(
     ${Boost_INCLUDE_DIRS}
     ${OPENGL_INCLUDE_DIR}
     ${LUA_INCLUDE_DIR}
-    ${YAMLCPP_INCLUDE_DIR}
     ${PHYSFS_INCLUDE_DIR}
     ${GMP_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
@@ -71,6 +69,7 @@ SET(SOURCES
     src/framework/util/logger.cpp
     src/framework/util/rsa.cpp
     src/framework/util/apngloader.cpp
+    src/framework/util/fml.cpp
 
 # framework graphics
     src/framework/graphics/image.cpp
@@ -129,7 +128,6 @@ TARGET_LINK_LIBRARIES(otclient
     ${Boost_LIBRARIES}
     ${OPENGL_LIBRARIES}
     ${LUA_LIBRARIES}
-    ${YAMLCPP_LIBRARY}
     ${PHYSFS_LIBRARY}
     ${GMP_LIBRARY}
     ${ZLIB_LIBRARY}
diff --git a/src/framework/core/configs.cpp b/src/framework/core/configs.cpp
index 4fcc923f..142d1351 100644
--- a/src/framework/core/configs.cpp
+++ b/src/framework/core/configs.cpp
@@ -36,27 +36,28 @@ bool Configs::load(const std::string& fileName)
     if(!g_resources.loadFile(fileName, fin))
         return false;
 
-    try {
-        YAML::Node doc;
-        YAML::Parser parser(fin);
-        parser.GetNextDocument(doc);
-
-        for(auto it = doc.begin(); it != doc.end(); ++it)
-            m_confsMap[yamlRead<std::string>(it.first())] = yamlRead<std::string>(it.second());
-
-        return true;
-    } catch (YAML::Exception& e) {
-        flogError("ERROR: Malformed config file: %s", e.what());
+    FML::Parser parser;
+    if(parser.load(fin)) {
+        FML::Node* doc = parser.getDocument();
+
+        foreach(FML::Node* node, *doc)
+            m_confsMap[node->tag()] = node->value();
+    } else {
+        flogError("ERROR: Malformed config file: %s", parser.getErrorMessage());
         return false;
     }
+
+    return true;
 }
 
 void Configs::save()
 {
     if(!m_fileName.empty()) {
-        YAML::Emitter out;
-        out << m_confsMap;
-        g_resources.saveFile(m_fileName, (const uchar*)out.c_str(), out.size());
+        std::stringstream out;
+        foreach(auto pair, m_confsMap) {
+            out << pair.first << ": " << pair.second << std::endl;
+        }
+        g_resources.saveFile(m_fileName, out);
     }
 }
 
diff --git a/src/framework/core/configs.h b/src/framework/core/configs.h
index 846ee72f..8e677a7f 100644
--- a/src/framework/core/configs.h
+++ b/src/framework/core/configs.h
@@ -41,7 +41,7 @@ public:
     bool load(const std::string& fileName);
     void save();
 
-    template<class T> void setValue(const std::string& key, const T& value) { m_confsMap[key] = convert_cast<std::string>(value); }
+    template<class T> void set(const std::string& key, const T& value) { m_confsMap[key] = convert_cast<std::string>(value); }
     ConfigValueProxy get(const std::string& key) { return ConfigValueProxy{m_confsMap[key]}; }
 
 private:
diff --git a/src/framework/graphics/font.cpp b/src/framework/graphics/font.cpp
index 367fdc69..335c1089 100644
--- a/src/framework/graphics/font.cpp
+++ b/src/framework/graphics/font.cpp
@@ -77,20 +77,17 @@ bool Font::load(const std::string& file)
     std::string textureName;
     Size glyphSize;
 
-    try {
-        YAML::Parser parser(fin);
-
-        YAML::Node doc;
-        parser.GetNextDocument(doc);
+    FML::Parser parser(fin);
+    if(!parser.hasError()) {
+        FML::Node* doc = parser.getDocument();
 
         // required values
-        doc["glyph height"] >> m_glyphHeight;
-        doc["image glyph size"] >> glyphSize;
-        textureName = yamlRead<std::string>(doc, "image");
-        m_glyphHeight = yamlRead<int>(doc, "glyph height");
-        m_firstGlyph = yamlRead<int>(doc, "first glyph", 32);
-        m_topMargin = yamlRead<int>(doc, "top margin", 0);
-        m_glyphSpacing = yamlRead(doc, "glyph spacing", Size(0,0));
+        textureName = doc->valueAt("image");
+        glyphSize = doc->readAt("image glyph size", Size(16, 16));
+        m_glyphHeight = doc->readAt("glyph height", 11);
+        m_firstGlyph = doc->readAt("first glyph", 32);
+        m_topMargin = doc->readAt("top margin", 0);
+        m_glyphSpacing = doc->readAt("glyph spacing", Size(0,0));
 
         // load texture
         m_texture = g_textures.get(textureName);
@@ -103,9 +100,12 @@ bool Font::load(const std::string& file)
         calculateGlyphsWidthsAutomatically(glyphSize);
 
         // read custom widths
-        std::map<int, int> glyphWidths = yamlReadMap<int, int>(doc, "glyph widths");
-        foreach(const auto& pair, glyphWidths)
-            m_glyphsSize[pair.first].setWidth(pair.second);
+        if(doc->hasNode("glyph widths")) {
+            std::map<int, int> glyphWidths;
+            (*(doc->at("glyph widths"))) >> glyphWidths;
+            foreach(const auto& pair, glyphWidths)
+                m_glyphsSize[pair.first].setWidth(pair.second);
+        }
 
         // calculate glyphs texture coords
         int numHorizontalGlyphs = m_texture->getSize().width() / glyphSize.width();
@@ -115,8 +115,8 @@ bool Font::load(const std::string& file)
                                                  m_glyphsSize[glyph].width(),
                                                  m_glyphHeight);
         }
-    } catch (YAML::Exception& e) {
-        flogError("ERROR: Malformed font file \"%s\":\n  %s", file.c_str() % e.what());
+    } else {
+        flogError("ERROR: Malformed font file \"%s\":\n  %s", file.c_str() % parser.getErrorMessage());
         return false;
     }
 
diff --git a/src/framework/platform/win32platform.cpp b/src/framework/platform/win32platform.cpp
index 3d51783e..751d0cf5 100644
--- a/src/framework/platform/win32platform.cpp
+++ b/src/framework/platform/win32platform.cpp
@@ -50,6 +50,9 @@ struct Win32PlatformPrivate {
 
 void Platform::init(const char *appName)
 {
+    // seend random numbers
+    std::srand(std::time(NULL));
+
     win32.appName = appName;
     win32.instance = GetModuleHandle(NULL);
 
diff --git a/src/framework/platform/x11platform.cpp b/src/framework/platform/x11platform.cpp
index 2fc8590a..50a7dfba 100644
--- a/src/framework/platform/x11platform.cpp
+++ b/src/framework/platform/x11platform.cpp
@@ -69,6 +69,9 @@ struct X11PlatformPrivate {
 
 void Platform::init(const char *appName)
 {
+    // seend random numbers
+    std::srand(std::time(NULL));
+
     x11.appName = appName;
     x11.display = NULL;
     x11.visual = NULL;
diff --git a/src/framework/prerequisites.h b/src/framework/prerequisites.h
index d23fdbc7..ed66062a 100644
--- a/src/framework/prerequisites.h
+++ b/src/framework/prerequisites.h
@@ -85,11 +85,11 @@ typedef boost::function<void()> SimpleCallback;
 
 // common utilities
 #include <util/util.h>
+#include <util/fml.h>
 #include <util/logger.h>
 #include <util/color.h>
 #include <util/point.h>
 #include <util/size.h>
 #include <util/rect.h>
-#include <util/yaml.h>
 
 #endif // PREREQUISITES_H
diff --git a/src/framework/script/luafunctions.cpp b/src/framework/script/luafunctions.cpp
index e67b6d7d..f666d25c 100644
--- a/src/framework/script/luafunctions.cpp
+++ b/src/framework/script/luafunctions.cpp
@@ -98,7 +98,7 @@ int lua_UI_load()
 
     UIElementPtr element;
     if(parent)
-        element = g_uiLoader.loadFromYAML(uiFile.c_str(), parent);
+        element = g_uiLoader.loadFromFile(uiFile.c_str(), parent);
     else
         g_lua.reportErrorWithTraceback("invalid parent container");
 
diff --git a/src/framework/ui/uibuttonskin.cpp b/src/framework/ui/uibuttonskin.cpp
index 8b6976f5..02927dcd 100644
--- a/src/framework/ui/uibuttonskin.cpp
+++ b/src/framework/ui/uibuttonskin.cpp
@@ -27,24 +27,22 @@
 #include <ui/uibuttonskin.h>
 #include <ui/uibutton.h>
 
-void UIButtonSkin::load(const YAML::Node& node)
+void UIButtonSkin::load(FML::Node* node)
 {
     UIElementSkin::load(node);
 
     m_buttonDownTextColor = getFontColor();
     m_buttonHoverTextColor = getFontColor();
 
-    if(yamlHasValue(node, "down state")) {
-        const YAML::Node& cnode = node["down state"];
+    if(FML::Node* cnode = node->at("down state")) {
         m_buttonDownImage = loadImage(cnode);
-        m_buttonDownTranslate = yamlRead(cnode, "text translate", Point());
-        m_buttonDownTextColor = yamlRead(cnode, "font color", getFontColor());
+        m_buttonDownTranslate = cnode->readAt("text translate", Point());
+        m_buttonDownTextColor = cnode->readAt("font color", getFontColor());
     }
 
-    if(yamlHasValue(node, "hover state")) {
-        const YAML::Node& cnode = node["hover state"];
+    if(FML::Node* cnode = node->at("hover state")) {
         m_buttonHoverImage = loadImage(cnode);
-        m_buttonHoverTextColor = yamlRead(cnode, "font color", getFontColor());
+        m_buttonHoverTextColor = cnode->readAt("font color", getFontColor());
     }
 }
 
diff --git a/src/framework/ui/uibuttonskin.h b/src/framework/ui/uibuttonskin.h
index 06933795..e03e0332 100644
--- a/src/framework/ui/uibuttonskin.h
+++ b/src/framework/ui/uibuttonskin.h
@@ -37,7 +37,7 @@ public:
     UIButtonSkin(const std::string& name) :
         UIElementSkin(name, UI::Button) { }
 
-    void load(const YAML::Node& node);
+    void load(FML::Node* node);
     void draw(UIElement *element);
 
 private:
diff --git a/src/framework/ui/uielementskin.cpp b/src/framework/ui/uielementskin.cpp
index dbca54b2..b3ed552b 100644
--- a/src/framework/ui/uielementskin.cpp
+++ b/src/framework/ui/uielementskin.cpp
@@ -30,12 +30,12 @@
 #include <graphics/textures.h>
 #include <graphics/fonts.h>
 
-void UIElementSkin::load(const YAML::Node& node)
+void UIElementSkin::load(FML::Node* node)
 {
-    m_defaultSize = yamlRead(node, "default size", Size());
+    m_defaultSize = node->readAt("default size", Size());
     m_defaultImage = loadImage(node);
     m_font = loadFont(node);
-    m_fontColor = yamlRead(node, "font color", g_uiSkins.getDefaultFontColor());
+    m_fontColor = node->readAt("font color", g_uiSkins.getDefaultFontColor());
 }
 
 void UIElementSkin::apply(UIElement* element)
@@ -50,23 +50,22 @@ void UIElementSkin::draw(UIElement *element)
         m_defaultImage->draw(element->getRect());
 }
 
-ImagePtr UIElementSkin::loadImage(const YAML::Node& node)
+ImagePtr UIElementSkin::loadImage(FML::Node* node)
 {
     ImagePtr image;
     TexturePtr texture;
 
-    if(yamlHasValue(node, "bordered image")) {
-        const YAML::Node& cnode = node["bordered image"];
-        Rect left = yamlRead(cnode, "left border", Rect());
-        Rect right = yamlRead(cnode, "right border", Rect());
-        Rect top = yamlRead(cnode, "top border", Rect());
-        Rect bottom = yamlRead(cnode, "bottom border", Rect());
-        Rect topLeft = yamlRead(cnode, "top left corner", Rect());
-        Rect topRight = yamlRead(cnode, "top right corner", Rect());
-        Rect bottomLeft = yamlRead(cnode, "bottom left corner", Rect());
-        Rect bottomRight = yamlRead(cnode, "bottom right corner", Rect());
-        Rect center = yamlRead(cnode, "center", Rect());
-        std::string textureName = yamlRead(cnode, "source", std::string());
+    if(FML::Node* cnode = node->at("bordered image")) {
+        Rect left = cnode->readAt("left border", Rect());
+        Rect right = cnode->readAt("right border", Rect());
+        Rect top = cnode->readAt("top border", Rect());
+        Rect bottom = cnode->readAt("bottom border", Rect());
+        Rect topLeft = cnode->readAt("top left corner", Rect());
+        Rect topRight = cnode->readAt("top right corner", Rect());
+        Rect bottomLeft = cnode->readAt("bottom left corner", Rect());
+        Rect bottomRight = cnode->readAt("bottom right corner", Rect());
+        Rect center = cnode->readAt("center", Rect());
+        std::string textureName = cnode->readAt("source", std::string());
 
         if(!textureName.empty())
             texture = g_textures.get(textureName);
@@ -87,20 +86,20 @@ ImagePtr UIElementSkin::loadImage(const YAML::Node& node)
         }
 
         if(!image)
-            logError(yamlErrorDesc(cnode, "failed to load bordered image"));
-    } else if(yamlHasValue(node, "image")) {
-        texture = g_textures.get(yamlRead<std::string>(node, "image"));
+            logError(node->generateErrorMessage("failed to load bordered image"));
+    } else if(FML::Node* cnode = node->at("image")) {
+        texture = g_textures.get(cnode->value());
         if(texture)
             image = ImagePtr(new Image(texture));
         if(!m_defaultSize.isValid())
             m_defaultSize = texture->getSize();
 
         if(!image)
-            logError(yamlErrorDesc(node["image"], "failed to load image"));
+            logError(cnode->generateErrorMessage("failed to load image"));
     }
 
     if(texture) {
-        bool antialised = yamlRead(node, "antialised", false);
+        bool antialised = node->readAt("antialised", false);
         if(antialised)
             texture->enableBilinearFilter();
     }
@@ -108,11 +107,11 @@ ImagePtr UIElementSkin::loadImage(const YAML::Node& node)
     return image;
 }
 
-FontPtr UIElementSkin::loadFont(const YAML::Node& node)
+FontPtr UIElementSkin::loadFont(FML::Node* node)
 {
     FontPtr font;
-    if(yamlHasValue(node, "font"))
-        font = g_fonts.get(yamlRead<std::string>(node, "font"));
+    if(FML::Node* cnode = node->at("font"))
+        font = g_fonts.get(cnode->value());
     if(!font)
         font = g_uiSkins.getDefaultFont();
     return font;
diff --git a/src/framework/ui/uielementskin.h b/src/framework/ui/uielementskin.h
index 2b50209c..87b9e1b6 100644
--- a/src/framework/ui/uielementskin.h
+++ b/src/framework/ui/uielementskin.h
@@ -41,8 +41,8 @@ public:
     UIElementSkin() : m_elementType(UI::Element) { }
     virtual ~UIElementSkin() { }
 
-    /// Load the skin from a YAML node
-    virtual void load(const YAML::Node& node);
+    /// Load the skin from a FML node
+    virtual void load(FML::Node* node);
     /// Apply the skin to an element
     virtual void apply(UIElement *element);
     /// Draw the skinned element
@@ -56,8 +56,8 @@ public:
     Color getFontColor() const { return m_fontColor; }
 
 protected:
-    ImagePtr loadImage(const YAML::Node& node);
-    FontPtr loadFont(const YAML::Node &node);
+    ImagePtr loadImage(FML::Node* node);
+    FontPtr loadFont(FML::Node* node);
 
 private:
     std::string m_name;
diff --git a/src/framework/ui/uilabelskin.cpp b/src/framework/ui/uilabelskin.cpp
index 84a713a7..398df3cb 100644
--- a/src/framework/ui/uilabelskin.cpp
+++ b/src/framework/ui/uilabelskin.cpp
@@ -27,7 +27,7 @@
 #include <ui/uilabelskin.h>
 #include <ui/uilabel.h>
 
-void UILabelSkin::load(const YAML::Node& node)
+void UILabelSkin::load(FML::Node* node)
 {
     UIElementSkin::load(node);
 }
diff --git a/src/framework/ui/uilabelskin.h b/src/framework/ui/uilabelskin.h
index 0cce4a62..8a6400e9 100644
--- a/src/framework/ui/uilabelskin.h
+++ b/src/framework/ui/uilabelskin.h
@@ -35,7 +35,7 @@ public:
     UILabelSkin(const std::string& name) :
         UIElementSkin(name, UI::Label) { }
 
-    void load(const YAML::Node& node);
+    void load(FML::Node* node);
     void apply(UIElement *element);
     void draw(UIElement *element);
 };
diff --git a/src/framework/ui/uiloader.cpp b/src/framework/ui/uiloader.cpp
index 8bad19d4..35a67387 100644
--- a/src/framework/ui/uiloader.cpp
+++ b/src/framework/ui/uiloader.cpp
@@ -67,93 +67,81 @@ UIElementPtr UILoader::createElementFromId(const std::string& id)
     return element;
 }
 
-UIElementPtr UILoader::loadFromYAML(std::string filePath, const UIContainerPtr& parent)
+UIElementPtr UILoader::loadFromFile(std::string filePath, const UIContainerPtr& parent)
 {
     std::stringstream fin;
     if(!g_resources.loadFile(filePath, fin)) {
-        flogError("ERROR: Could not load ui file \"%s",  filePath.c_str());
+        flogError("ERROR: Could not load ui file \"%s", filePath.c_str());
         return UIElementPtr();
     }
 
     m_currentFile = filePath;
 
-    try {
-        YAML::Parser parser(fin);
-
-        YAML::Node doc;
-        parser.GetNextDocument(doc);
+    FML::Parser parser(fin);
+    if(!parser.hasError()) {
+        FML::Node* doc = parser.getDocument();
 
         // get element id
-        std::string elementId;
-        doc.begin().first() >> elementId;
+        std::string elementId = doc->front()->tag();
 
         // first we should populate all elements
         // only after that we can load anchors
 
         // create element interpreting it's id
         UIElementPtr element = createElementFromId(elementId);
-        if(!element)
-            yamlThrowError(doc.begin().first(), "invalid element type");
+        if(!element) {
+            logError(doc->front()->generateErrorMessage("invalid root element type"));
+            return element;
+        }
         parent->addChild(element);
 
         // populete it
         if(element->asUIContainer())
-            populateContainer(element->asUIContainer(), doc.begin().second());
+            populateContainer(element->asUIContainer(), doc->front());
 
         // now do the real load
-        loadElements(element, doc.begin().second());
+        loadElements(element, doc->front());
 
         // report onLoad events
         element->onLoad();
         return element;
-    } catch (YAML::Exception& e) {
-        flogError("ERROR: Failed to load ui file \"%s\":\n  %s", filePath.c_str() % e.what());
+    } else {
+        flogError("ERROR: Failed to load ui file \"%s\":\n  %s", filePath.c_str() % parser.getErrorMessage());
     }
 
     return UIElementPtr();
 }
 
-void UILoader::populateContainer(const UIContainerPtr& parent, const YAML::Node& node)
+void UILoader::populateContainer(const UIContainerPtr& parent, FML::Node* node)
 {
-    // order nodes
-    std::map<int, std::string> orderedNodes;
-    for(auto it = node.begin(); it != node.end(); ++it) {
-        std::string id;
-        it.first() >> id;
-
-        // check if it's an element id
-        if(id.find("#") != std::string::npos)
-            orderedNodes[it.first().GetMark().pos] = id;
-    }
-
     // populate ordered elements
-    foreach(auto pair, orderedNodes) {
-        std::string id = pair.second;
-        const YAML::Node& cnode = node[id];
+    foreach(FML::Node* cnode, *node) {
+        std::string id = cnode->tag();
+        if(id.find("#") != std::string::npos) {
+            UIElementPtr element = createElementFromId(id);
+            if(!element) {
+                logError(cnode->generateErrorMessage("invalid element type"));
+                continue;
+            }
+            parent->addChild(element);
 
-        UIElementPtr element = createElementFromId(id);
-        if(!element) {
-            logError(yamlErrorDesc(cnode, "invalid element type"));
-            continue;
+            // also populate this element if it's a parent
+            if(element->asUIContainer())
+                populateContainer(element->asUIContainer(), cnode);
         }
-        parent->addChild(element);
-
-        // also populate this element if it's a parent
-        if(element->asUIContainer())
-            populateContainer(element->asUIContainer(), cnode);
     }
 }
 
-void UILoader::loadElements(const UIElementPtr& parent, const YAML::Node& node)
+void UILoader::loadElements(const UIElementPtr& parent, FML::Node* node)
 {
     loadElement(parent, node);
 
     if(UIContainerPtr container = parent->asUIContainer()) {
         foreach(const UIElementPtr& element, container->getChildren()) {
-            for(auto it = node.begin(); it != node.end(); ++it) {
+            foreach(FML::Node* cnode, *node) {
                 // node found, load it
-                if(boost::ends_with(yamlRead<std::string>(it.first()), "#" + element->getId())) {
-                    loadElements(element, it.second());
+                if(boost::ends_with(cnode->tag(), "#" + element->getId())) {
+                    loadElements(element, cnode);
                     break;
                 }
             }
@@ -161,13 +149,12 @@ void UILoader::loadElements(const UIElementPtr& parent, const YAML::Node& node)
     }
 }
 
-void UILoader::loadElement(const UIElementPtr& element, const YAML::Node& node)
+void UILoader::loadElement(const UIElementPtr& element, FML::Node* node)
 {
     // set element skin
-    if(yamlHasValue(node, "skin")) {
-        const YAML::Node& cnode = node["skin"];
-        if(cnode.Type() == YAML::NodeType::Scalar) {
-            element->setSkin(g_uiSkins.getElementSkin(element->getElementType(), yamlRead<std::string>(cnode)));
+    if(FML::Node* cnode = node->at("skin")) {
+        if(cnode->hasValue()) {
+            element->setSkin(g_uiSkins.getElementSkin(element->getElementType(), cnode->value()));
         } else {
             UIElementSkinPtr skin = UIElementSkinPtr(new UIElementSkin());
             skin->load(cnode);
@@ -177,46 +164,45 @@ void UILoader::loadElement(const UIElementPtr& element, const YAML::Node& node)
         element->setSkin(g_uiSkins.getElementSkin(element->getElementType(), "default"));
 
     // load elements common proprieties
-    if(yamlHasValue(node, "size"))
-        element->setSize(yamlRead<Size>(node, "size"));
-    element->setMarginLeft(yamlRead(node, "margin.left", 0));
-    element->setMarginRight(yamlRead(node, "margin.right", 0));
-    element->setMarginTop(yamlRead(node, "margin.top", 0));
-    element->setMarginBottom(yamlRead(node, "margin.bottom", 0));
+    if(node->hasNode("size"))
+        element->setSize(node->readAt<Size>("size"));
+
+    element->setMarginLeft(node->readAt("margin.left", 0));
+    element->setMarginRight(node->readAt("margin.right", 0));
+    element->setMarginTop(node->readAt("margin.top", 0));
+    element->setMarginBottom(node->readAt("margin.bottom", 0));
 
-    if(yamlHasValue(node, "anchors.left"))
-        loadElementAnchor(element, UI::AnchorLeft, node["anchors.left"]);
+    if(node->hasNode("anchors.left"))
+        loadElementAnchor(element, UI::AnchorLeft, node->at("anchors.left"));
 
-    if(yamlHasValue(node, "anchors.right"))
-        loadElementAnchor(element, UI::AnchorRight, node["anchors.right"]);
+    if(node->hasNode("anchors.right"))
+        loadElementAnchor(element, UI::AnchorRight, node->at("anchors.right"));
 
-    if(yamlHasValue(node, "anchors.top"))
-        loadElementAnchor(element, UI::AnchorTop, node["anchors.top"]);
+    if(node->hasNode("anchors.top"))
+        loadElementAnchor(element, UI::AnchorTop, node->at("anchors.top"));
 
-    if(yamlHasValue(node, "anchors.bottom"))
-        loadElementAnchor(element, UI::AnchorBottom, node["anchors.bottom"]);
+    if(node->hasNode("anchors.bottom"))
+        loadElementAnchor(element, UI::AnchorBottom, node->at("anchors.bottom"));
 
-    if(yamlHasValue(node, "anchors.horizontalCenter"))
-        loadElementAnchor(element, UI::AnchorHorizontalCenter, node["anchors.horizontalCenter"]);
+    if(node->hasNode("anchors.horizontalCenter"))
+        loadElementAnchor(element, UI::AnchorHorizontalCenter, node->at("anchors.horizontalCenter"));
 
-    if(yamlHasValue(node, "anchors.verticalCenter"))
-        loadElementAnchor(element, UI::AnchorVerticalCenter, node["anchors.verticalCenter"]);
+    if(node->hasNode("anchors.verticalCenter"))
+        loadElementAnchor(element, UI::AnchorVerticalCenter, node->at("anchors.verticalCenter"));
 
     // load events
-    if(yamlHasValue(node, "onLoad")) {
-        const YAML::Node& cnode = node["onLoad"];
-        if(g_lua.loadBufferAsFunction(yamlRead<std::string>(cnode), getElementSourceDesc(element, "onLoad")))
+    if(FML::Node* cnode = node->at("onLoad")) {
+        if(g_lua.loadBufferAsFunction(cnode->value(), getElementSourceDesc(element, "onLoad")))
             g_lua.setScriptableField(element, "onLoad");
         else
-            logError(yamlErrorDesc(cnode, "failed to parse inline lua script"));
+            logError(cnode->generateErrorMessage("failed to parse inline lua script"));
     }
 
-    if(yamlHasValue(node, "onDestroy")) {
-        const YAML::Node& cnode = node["onDestroy"];
-        if(g_lua.loadBufferAsFunction(yamlRead<std::string>(cnode), getElementSourceDesc(element, "onDestroy")))
+    if(FML::Node* cnode = node->at("onDestroy")) {
+        if(g_lua.loadBufferAsFunction(cnode->value(), getElementSourceDesc(element, "onDestroy")))
             g_lua.setScriptableField(element, "onDestroy");
         else
-            logError(yamlErrorDesc(cnode, "failed to parse inline lua script"));
+            logError(cnode->generateErrorMessage("failed to parse inline lua script"));
     }
 
     // load specific element type
@@ -224,30 +210,29 @@ void UILoader::loadElement(const UIElementPtr& element, const YAML::Node& node)
         loadButton(boost::static_pointer_cast<UIButton>(element), node);
     else if(element->getElementType() == UI::Window) {
         UIWindowPtr window = boost::static_pointer_cast<UIWindow>(element);
-        window->setTitle(yamlRead(node, "title", std::string()));
+        window->setTitle(node->readAt("title", std::string()));
     }
     else if(element->getElementType() == UI::Label) {
         UILabelPtr label = boost::static_pointer_cast<UILabel>(element);
-        label->setText(yamlRead(node, "text", std::string()));
-        label->setAlign(parseAlignment(yamlRead(node, "align", std::string("left"))));
+        label->setText(node->readAt("text", std::string()));
+        label->setAlign(parseAlignment(node->readAt("align", std::string("left"))));
     }
 }
 
-void UILoader::loadElementAnchor(const UIElementPtr& anchoredElement, UI::AnchorPoint anchoredEdge, const YAML::Node& node)
+void UILoader::loadElementAnchor(const UIElementPtr& anchoredElement, UI::AnchorPoint anchoredEdge, FML::Node* node)
 {
     UIAnchorLayoutPtr layout = boost::dynamic_pointer_cast<UIAnchorLayout>(anchoredElement->getLayout());
     if(!layout) {
-        logError(yamlErrorDesc(node, "could not add anchor, because this element does not participate of an anchor layout"));
+        logError(node->generateErrorMessage("could not add anchor, because this element does not participate of an anchor layout"));
         return;
     }
 
-    std::string anchorDescription;
-    node >> anchorDescription;
+    std::string anchorDescription = node->value();
 
     std::vector<std::string> split;
     boost::split(split, anchorDescription, boost::is_any_of(std::string(".")));
     if(split.size() != 2) {
-        logError(yamlErrorDesc(node, "invalid anchor"));
+        logError(node->generateErrorMessage("invalid anchor"));
         return;
     }
 
@@ -255,25 +240,24 @@ void UILoader::loadElementAnchor(const UIElementPtr& anchoredElement, UI::Anchor
     UI::AnchorPoint anchorLineEdge = UIAnchorLayout::parseAnchorPoint(split[1]);
 
     if(anchorLineEdge == UI::AnchorNone) {
-        logError(yamlErrorDesc(node, "invalid anchor type"));
+        logError(node->generateErrorMessage("invalid anchor type"));
         return;
     }
 
     if(!layout->addAnchor(anchoredElement, anchoredEdge, AnchorLine(anchorLineElementId, anchorLineEdge)))
-        logError(yamlErrorDesc(node, "anchoring failed"));
+        logError(node->generateErrorMessage("anchoring failed"));
 }
 
-void UILoader::loadButton(const UIButtonPtr& button, const YAML::Node& node)
+void UILoader::loadButton(const UIButtonPtr& button, FML::Node* node)
 {
-    button->setText(yamlRead<std::string>(node["text"]));
+    button->setText(node->valueAt("text"));
 
     // set on click event
-    if(yamlHasValue(node, "onClick")) {
-        const YAML::Node& cnode = node["onClick"];
-        if(g_lua.loadBufferAsFunction(yamlRead<std::string>(cnode), getElementSourceDesc(button, "onClick")))
+    if(FML::Node* cnode = node->at("onClick")) {
+        if(g_lua.loadBufferAsFunction(cnode->value(), getElementSourceDesc(button, "onClick")))
             g_lua.setScriptableField(button, "onClick");
         else
-            logError(yamlErrorDesc(cnode, "failed to parse inline lua script"));
+            logError(cnode->generateErrorMessage("failed to parse inline lua script"));
     }
 }
 
diff --git a/src/framework/ui/uiloader.h b/src/framework/ui/uiloader.h
index b0013ecc..370d8da0 100644
--- a/src/framework/ui/uiloader.h
+++ b/src/framework/ui/uiloader.h
@@ -33,27 +33,27 @@
 class UILoader
 {
 public:
-    /// Loads an UIElement and it's children from a YAML file
-    UIElementPtr loadFromYAML(std::string filePath, const UIContainerPtr& parent = UIContainer::getRoot());
+    /// Loads an UIElement and it's children from a FML file
+    UIElementPtr loadFromFile(std::string filePath, const UIContainerPtr& parent = UIContainer::getRoot());
 
 private:
     /// Detect element type and create it
     UIElementPtr createElementFromId(const std::string& id);
 
-    /// Populate container children from a YAML node
-    void populateContainer(const UIContainerPtr& parent, const YAML::Node& node);
+    /// Populate container children from a FML node
+    void populateContainer(const UIContainerPtr& parent, FML::Node* node);
 
-    /// Load element and its children from a YAML node
-    void loadElements(const UIElementPtr& parent, const YAML::Node& node);
+    /// Load element and its children from a FML node
+    void loadElements(const UIElementPtr& parent, FML::Node* node);
 
-    /// Load element proprieties from a YAML node
-    void loadElement(const UIElementPtr& element, const YAML::Node& node);
+    /// Load element proprieties from a FML node
+    void loadElement(const UIElementPtr& element, FML::Node* node);
 
-    /// Load anchor from a YAML node
-    void loadElementAnchor(const UIElementPtr& anchoredElement, UI::AnchorPoint anchoredEdge, const YAML::Node& node);
+    /// Load anchor from a FML node
+    void loadElementAnchor(const UIElementPtr& anchoredElement, UI::AnchorPoint anchoredEdge, FML::Node* node);
 
     // specific elements loading
-    void loadButton(const UIButtonPtr& button, const YAML::Node& node);
+    void loadButton(const UIButtonPtr& button, FML::Node* node);
 
     std::string getElementSourceDesc(const UIElementPtr& element, const std::string& key = "");
 
diff --git a/src/framework/ui/uiskins.cpp b/src/framework/ui/uiskins.cpp
index 9056d044..4315649e 100644
--- a/src/framework/ui/uiskins.cpp
+++ b/src/framework/ui/uiskins.cpp
@@ -43,97 +43,62 @@ void UISkins::load(const std::string& skinName)
     if(!g_resources.loadFile(skinName + ".yml", fin))
         flogFatal("FATAL ERROR: Could not load skin \"%s",  skinName.c_str());
 
-    try {
-        YAML::Parser parser(fin);
+    FML::Parser parser(fin);
+    if(!parser.hasError()) {
+        FML::Node* doc = parser.getDocument();
 
-        YAML::Node doc;
-        parser.GetNextDocument(doc);
-
-        m_defaultFont = g_fonts.get(yamlRead<std::string>(doc, "default font"));
+        m_defaultFont = g_fonts.get(doc->readAt<std::string>("default font"));
         if(!m_defaultFont)
             logFatal("FATAL ERROR: Could not load skin default font");
 
-        m_defaultFontColor = yamlRead(doc, "default font color", Color::white);
+        m_defaultFontColor = doc->readAt("default font color", Color::white);
 
-        std::string defaultTextureName = yamlRead(doc, "default texture", std::string());
+        std::string defaultTextureName = doc->readAt("default texture", std::string());
         if(!defaultTextureName.empty())
             m_defaultTexture = g_textures.get(defaultTextureName);
 
-        {
-            const YAML::Node& node = doc["buttons"];
-            for(auto it = node.begin(); it != node.end(); ++it) {
-                std::string name;
-                it.first() >> name;
-
-                UIElementSkinPtr skin = UIElementSkinPtr(new UIButtonSkin(name));
-                skin->load(it.second());
-                m_elementSkins.push_back(skin);
-            }
-        }
-
-        {
-            const YAML::Node& node = doc["panels"];
-            for(auto it = node.begin(); it != node.end(); ++it) {
-                std::string name;
-                it.first() >> name;
-
-                UIElementSkinPtr skin = UIElementSkinPtr(new UIElementSkin(name, UI::Panel));
-                skin->load(it.second());
+        if(FML::Node* node = doc->at("buttons")) {
+            foreach(FML::Node* cnode, *node) {
+                UIElementSkinPtr skin = UIElementSkinPtr(new UIButtonSkin(cnode->tag()));
+                skin->load(cnode);
                 m_elementSkins.push_back(skin);
             }
         }
 
-        {
-            const YAML::Node& node = doc["windows"];
-            for(auto it = node.begin(); it != node.end(); ++it) {
-                std::string name;
-                it.first() >> name;
-
-                UIElementSkinPtr skin = UIElementSkinPtr(new UIWindowSkin(name));
-                skin->load(it.second());
+        if(FML::Node* node = doc->at("panels")) {
+            foreach(FML::Node* cnode, *node) {
+                UIElementSkinPtr skin = UIElementSkinPtr(new UIElementSkin(cnode->tag(), UI::Panel));
+                skin->load(cnode);
                 m_elementSkins.push_back(skin);
             }
         }
 
-        {
-            const YAML::Node& node = doc["labels"];
-            for(auto it = node.begin(); it != node.end(); ++it) {
-                std::string name;
-                it.first() >> name;
-
-                UIElementSkinPtr skin = UIElementSkinPtr(new UILabelSkin(name));
-                skin->load(it.second());
+        if(FML::Node* node = doc->at("windows")) {
+            foreach(FML::Node* cnode, *node) {
+                UIElementSkinPtr skin = UIElementSkinPtr(new UIWindowSkin(cnode->tag()));
+                skin->load(cnode);
                 m_elementSkins.push_back(skin);
             }
         }
 
-
-        {
-            const YAML::Node& node = doc["text edits"];
-            for(auto it = node.begin(); it != node.end(); ++it) {
-                std::string name;
-                it.first() >> name;
-
-                UIElementSkinPtr skin = UIElementSkinPtr(new UITextEditSkin(name));
-                skin->load(it.second());
+        if(FML::Node* node = doc->at("labels")) {
+            foreach(FML::Node* cnode, *node) {
+                UIElementSkinPtr skin = UIElementSkinPtr(new UILabelSkin(cnode->tag()));
+                skin->load(cnode);
                 m_elementSkins.push_back(skin);
             }
         }
 
 
-        {
-            const YAML::Node& node = doc["line decorations"];
-            for(auto it = node.begin(); it != node.end(); ++it) {
-                std::string name;
-                it.first() >> name;
-
-                UIElementSkinPtr skin = UIElementSkinPtr(new UIElementSkin(name, UI::LineDecoration));
-                skin->load(it.second());
+        if(FML::Node* node = doc->at("text edits")) {
+            foreach(FML::Node* cnode, *node) {
+                UIElementSkinPtr skin = UIElementSkinPtr(new UITextEditSkin(cnode->tag()));
+                skin->load(cnode);
                 m_elementSkins.push_back(skin);
             }
         }
-    } catch (YAML::Exception& e) {
-        flogFatal("FATAL ERROR: Malformed skin file \"%s\":\n  %s", skinName.c_str() % e.what());
+    } else {
+        flogFatal("FATAL ERROR: Malformed skin file \"%s\":\n  %s", skinName.c_str() % parser.getErrorMessage());
     }
 
     g_resources.popCurrentPath();
diff --git a/src/framework/ui/uitexteditskin.cpp b/src/framework/ui/uitexteditskin.cpp
index ffc0a090..4306f204 100644
--- a/src/framework/ui/uitexteditskin.cpp
+++ b/src/framework/ui/uitexteditskin.cpp
@@ -27,10 +27,10 @@
 #include <ui/uitexteditskin.h>
 #include <ui/uitextedit.h>
 
-void UITextEditSkin::load(const YAML::Node& node)
+void UITextEditSkin::load(FML::Node* node)
 {
     UIElementSkin::load(node);
-    m_textMargin = yamlRead(node, "text margin", 2);
+    m_textMargin = node->readAt("text margin", 2);
 }
 
 void UITextEditSkin::apply(UIElement* element)
diff --git a/src/framework/ui/uitexteditskin.h b/src/framework/ui/uitexteditskin.h
index 0f31da50..21ea0d19 100644
--- a/src/framework/ui/uitexteditskin.h
+++ b/src/framework/ui/uitexteditskin.h
@@ -36,7 +36,7 @@ public:
     UITextEditSkin(const std::string& name) :
         UIElementSkin(name, UI::TextEdit) { }
 
-    void load(const YAML::Node& node);
+    void load(FML::Node* node);
     void apply(UIElement *element);
     void draw(UIElement *element);
 
diff --git a/src/framework/ui/uiwindowskin.cpp b/src/framework/ui/uiwindowskin.cpp
index d6854a5d..adf3477e 100644
--- a/src/framework/ui/uiwindowskin.cpp
+++ b/src/framework/ui/uiwindowskin.cpp
@@ -26,17 +26,17 @@
 #include <ui/uiwindowskin.h>
 #include <ui/uiwindow.h>
 
-void UIWindowSkin::load(const YAML::Node& node)
+void UIWindowSkin::load(FML::Node* node)
 {
     UIElementSkin::load(node);
 
-    const YAML::Node& headNode = node["head"];
-    const YAML::Node& bodyNode = node["body"];
+    FML::Node* headNode = node->at("head");
+    FML::Node* bodyNode = node->at("body");
 
     m_headImage = boost::dynamic_pointer_cast<BorderedImage>(loadImage(headNode));
-    m_headHeight = yamlRead(headNode, "height", m_headImage->getDefaultSize().height());
-    m_headMargin = yamlRead(headNode, "margin", 0);
-    m_titleAlign = parseAlignment(yamlRead(headNode, "text align", std::string("center")));
+    m_headHeight = headNode->readAt("height", m_headImage->getDefaultSize().height());
+    m_headMargin = headNode->readAt("margin", 0);
+    m_titleAlign = parseAlignment(headNode->readAt("text align", std::string("center")));
     m_bodyImage = loadImage(bodyNode);
 }
 
diff --git a/src/framework/ui/uiwindowskin.h b/src/framework/ui/uiwindowskin.h
index ca45f368..0e7448e8 100644
--- a/src/framework/ui/uiwindowskin.h
+++ b/src/framework/ui/uiwindowskin.h
@@ -35,7 +35,7 @@ public:
     UIWindowSkin(const std::string& name) :
         UIElementSkin(name, UI::Window) { }
 
-    void load(const YAML::Node& node);
+    void load(FML::Node* node);
     void draw(UIElement *element);
 
     int getHeadHeight() const { return m_headHeight; }
diff --git a/src/framework/util/color.h b/src/framework/util/color.h
index e9301061..d4bb5dcc 100644
--- a/src/framework/util/color.h
+++ b/src/framework/util/color.h
@@ -76,4 +76,14 @@ inline std::ostream& operator<<(std::ostream& out, const Color& color)
     return out;
 }
 
+inline void operator>>(const FML::Node& node, Color& color)
+{
+    int r, g, b, a;
+    *node.at(0) >> r;
+    *node.at(1) >> g;
+    *node.at(2) >> b;
+    *node.at(3) >> a;
+    color.setRGBA(r,g,b,a);
+}
+
 #endif // COLOR_H
diff --git a/src/framework/util/fml.cpp b/src/framework/util/fml.cpp
new file mode 100644
index 00000000..8e9ba2e4
--- /dev/null
+++ b/src/framework/util/fml.cpp
@@ -0,0 +1,359 @@
+#include "fml.h"
+
+#include <boost/algorithm/string.hpp>
+#include <boost/tokenizer.hpp>
+#include <boost/lexical_cast.hpp>
+
+namespace FML {
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Utilities
+
+bool fml_convert(const std::string& input, bool& b)
+{
+    std::string names[5][2] = { { "1", "0" },
+    { "y", "n" },
+    { "yes", "no" },
+    { "true", "false" },
+    { "on", "off" } };
+    std::string processedInput = input;
+    boost::trim(processedInput);
+    boost::to_lower(processedInput);
+    for(int i=0;i<5;i++) {
+        if(names[i][0] == processedInput) {
+            b = true;
+            return true;
+        }
+
+        if(names[i][1] == processedInput) {
+            b = false;
+            return true;
+        }
+    }
+    return false;
+}
+
+bool fml_convert(const std::string& input, std::string& output) {
+    output = input;
+    return true;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Node
+
+Node::~Node()
+{
+    for(NodeList::iterator it = m_children.begin(); it != m_children.end(); ++it)
+        delete (*it);
+}
+
+Node* Node::at(const std::string& childTag) const
+{
+    for(NodeList::const_iterator it = m_children.begin(); it != m_children.end(); ++it) {
+        if((*it)->tag() == childTag)
+            return (*it);
+    }
+    return NULL;
+}
+
+Node* Node::at(int pos) const
+{
+    if(pos < 0 || pos >= size())
+        return NULL;
+    return m_children[pos];
+}
+
+std::string Node::value(const std::string& def) const
+{
+    if(!m_value.empty())
+        return m_value;
+    return def;
+}
+
+std::string Node::valueAt(const std::string childTag, const std::string& def) const
+{
+    for(NodeList::const_iterator it = m_children.begin(); it != m_children.end(); ++it) {
+        if((*it)->tag() == childTag)
+            return (*it)->value();
+    }
+    return def;
+}
+
+void Node::addNode(Node *node)
+{
+    if(node->hasTag() && node->hasValue()) {
+        // remove nodes wit the same tag
+        for(NodeList::iterator it = m_children.begin(); it != m_children.end(); ++it) {
+            if((*it)->tag() == node->tag()) {
+                delete (*it);
+                m_children.erase(it);
+                break;
+            }
+        }
+    }
+    m_children.push_back(node);
+    node->setParent(this);
+}
+
+std::string Node::generateErrorMessage(const std::string& message) const
+{
+    std::stringstream ss;
+    ss << "FML error ";
+    if(m_parser && !m_parser->getWhat().empty())
+        ss << "in " << m_parser->getWhat();
+    if(m_line > 0)
+        ss << "at line " << m_line;
+    ss << ": " << message;
+    return ss.str();
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Parser
+
+Parser::~Parser()
+{
+    if(m_rootNode)
+        delete m_rootNode;
+}
+
+bool Parser::load(std::istream& in)
+{
+    // initialize root node
+    if(m_rootNode)
+        delete m_rootNode;
+    m_rootNode = new Node();
+    m_rootNode->setTag("root");
+
+    m_currentParent = m_rootNode;
+    m_currentDepth = 0;
+    m_currentLine = 0;
+    m_multilineMode = DONT_MULTILINE;
+    m_multilineData.clear();
+
+    while(in.good() && !in.eof()) {
+        m_currentLine++;
+        std::string line;
+        std::getline(in, line);
+        parseLine(line);
+        if(hasError())
+            return false;
+    }
+
+    // stop multilining if enabled
+    if(isMultilining())
+        stopMultilining();
+
+    return !hasError();
+}
+
+void Parser::parseLine(std::string& line)
+{
+    // process multiline data first
+    if(isMultilining() && parseMultiline(line))
+        return;
+
+    // calculate depth
+    std::size_t numSpaces = line.find_first_not_of(' ');
+
+    // trim left whitespaces
+    boost::trim_left(line);
+
+    // skip comment lines
+    if(line[0] == '#')
+        return;
+
+    // skip empty lines
+    if(line.empty())
+        return;
+
+    int depth = 0;
+    if(numSpaces != std::string::npos) {
+        depth = numSpaces / 2;
+        // check for syntax error
+        if(numSpaces % 2 != 0) {
+            setErrorMessage("file must be idented every 2 whitespaces", m_currentLine);
+            return;
+        }
+    }
+
+    // a depth above
+    if(depth == m_currentDepth+1) {
+        // change current parent to the previous added node
+        m_currentParent = m_previousNode;
+    // a depth below, change parent to previus parent and add new node inside previuos parent
+    } else if(depth < m_currentDepth) {
+        // change current parent to the the new depth parent
+        for(int i=0;i<m_currentDepth-depth;++i)
+            m_currentParent = m_currentParent->parent();
+    // else if nots the same depth it's a syntax error
+    } else if(depth != m_currentDepth) {
+        setErrorMessage("invalid indentation level", m_currentLine);
+        return;
+    }
+
+    // update current depth
+    m_currentDepth = depth;
+
+    // add node
+    Node *node = parseNode(line);
+    m_currentParent->addNode(node);
+    m_previousNode = node;
+}
+
+Node *Parser::parseNode(std::string& line)
+{
+    // determine node tag and value
+    std::string tag;
+    std::string value;
+
+    // its a node that has tag and possible a value
+    std::size_t dotsPos = line.find_first_of(':');
+    if(dotsPos != std::string::npos) {
+        tag = line.substr(0, dotsPos);
+        value = line.substr(dotsPos+1);
+    }
+    // its a node that has a value but no tag
+    else if(line[0] == '-') {
+        value = line.substr(1);
+    }
+    // its a node that has only a tag
+    else {
+        tag = line;
+    }
+
+    // trim the tag and value
+    boost::trim(tag);
+    boost::trim(value);
+
+    // create the node
+    Node *node = new Node(this);
+    node->setLine(m_currentLine);
+    node->setTag(tag);
+
+    // process node value
+    if(!value.empty()) {
+        // multiline text scalar
+        if(value[0] == '|') {
+            startMultilining(value);
+        }
+        // sequence
+        else if(value[0] == '[') {
+            if(boost::ends_with(value, "]")) {
+                value.erase(value.length()-1, 1);
+                value.erase(0, 1);
+                boost::trim(value);
+                boost::tokenizer<boost::escaped_list_separator<char> > tokens(value);
+                for(boost::tokenizer<boost::escaped_list_separator<char> >::iterator it = tokens.begin(); it != tokens.end(); ++it) {
+                    value = *it;
+                    boost::trim(value);
+
+                    Node *child = new Node(this);
+                    child->setLine(m_currentLine);
+                    child->setValue(value);
+                    node->addNode(child);
+                }
+            } else
+                setErrorMessage("missing ']' in sequence", m_currentLine);
+        }
+        // text scalar
+        else {
+            node->setValue(parseTextScalar(value));
+        }
+    }
+
+    return node;
+}
+
+std::string Parser::parseTextScalar(std::string value)
+{
+    if(value[0] == '"' && value[value.length()-1] == '"') {
+        value =  value.substr(1, value.length()-2);
+        // escape characters
+        boost::replace_all(value, "\\\\", "\\");
+        boost::replace_all(value, "\\\"", "\"");
+        boost::replace_all(value, "\\n", "\n");
+    }
+    return value;
+}
+
+void Parser::startMultilining(const std::string& param)
+{
+    m_multilineMode = MULTILINE_DONT_FOLD;
+    m_currentDepth++;
+    if(param.length() == 2) {
+        switch(param[1]) {
+            case '-':
+                m_multilineMode = MULTILINE_FOLD_BLOCK;
+                break;
+            case '+':
+                m_multilineMode = MULTILINE_FOLD_FLOW;
+                break;
+            default:
+                setErrorMessage("invalid multiline identifier", m_currentLine);
+                break;
+        }
+    }
+}
+
+void Parser::stopMultilining()
+{
+    // remove all new lines at the end
+    if(m_multilineMode == MULTILINE_DONT_FOLD || m_multilineMode == MULTILINE_FOLD_BLOCK) {
+        while(true) {
+            int lastPos = m_multilineData.length()-1;
+            if(m_multilineData[lastPos] != '\n')
+                break;
+            m_multilineData.erase(lastPos, 1);
+        }
+    }
+
+    if(m_multilineMode == MULTILINE_FOLD_BLOCK)
+        m_multilineData.append("\n");
+
+    m_previousNode->setValue(m_multilineData);
+    m_multilineMode = DONT_MULTILINE;
+    m_currentDepth--;
+    m_multilineData.clear();
+}
+
+bool Parser::parseMultiline(std::string line)
+{
+    // calculate depth
+    std::size_t numSpaces = line.find_first_not_of(' ');
+
+    // depth above or equal current depth, add the text to the multiline
+    if(numSpaces != std::string::npos && (int)numSpaces >= m_currentDepth*2) {
+        m_multilineData += parseTextScalar(line.substr(m_currentDepth*2)) + "\n";
+        return true;
+        // depth below the current depth, check if it is a node
+    } else if(numSpaces == std::string::npos || (int)numSpaces < m_currentDepth*2) {
+        // if it has contents, its a node, then we must end multiline
+        if(line.find_first_not_of(' ') != std::string::npos) {
+            stopMultilining();
+            // the line still have a node on it
+        }
+        // no contents, just an extra line
+        else {
+            m_multilineData += "\n";
+            return true;
+        }
+    }
+    return false;
+}
+
+void Parser::setErrorMessage(const std::string& message, int line)
+{
+    std::stringstream ss;
+    ss << "FML syntax error in ";
+    if(!m_what.empty())
+        ss << m_what << " ";
+    if(line > 0)
+        ss << "at line " << line;
+    ss << ": "  << message;
+    m_error = ss.str();
+}
+
+} // namespace FML {
diff --git a/src/framework/util/fml.h b/src/framework/util/fml.h
new file mode 100644
index 00000000..a1fcf622
--- /dev/null
+++ b/src/framework/util/fml.h
@@ -0,0 +1,217 @@
+#ifndef FML_H
+#define FML_H
+
+#include <sstream>
+#include <string>
+#include <vector>
+#include <iterator>
+#include <map>
+
+#include <boost/utility.hpp>
+#include <boost/foreach.hpp>
+
+namespace FML {
+
+///////////////////////////////////////////////////////////////////////////////
+// Utilities
+
+bool fml_convert(const std::string& input, bool& b);
+bool fml_convert(const std::string& input, std::string& output);
+
+template <typename V, typename T>
+bool fml_convert(const V& in, T& out) {
+    std::stringstream ss;
+    ss << in;
+    ss >> out;
+    return !!ss;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Node
+
+class Parser;
+
+class Node : boost::noncopyable
+{
+public:
+    typedef std::vector<Node*> NodeList;
+
+    Node(Parser* parser = 0) : m_parser(parser), m_parent(0), m_line(0) { }
+    ~Node();
+
+    bool hasTag() const { return !m_tag.empty(); }
+    bool hasChildren() const { return size() > 0; }
+    bool hasValue() const { return !m_value.empty(); }
+    bool hasNode(const std::string childTag) const { return at(childTag) != 0; }
+
+    void setTag(std::string tag) { m_tag = tag; }
+    void setLine(int line) { m_line = line; }
+    void setValue(const std::string& value) { m_value = value; }
+    void setParent(Node* parent) { m_parent = parent; }
+
+    std::string tag() const { return m_tag; }
+    int line() const { return m_line; }
+    int size() const { return m_children.size(); }
+    Node* parent() { return m_parent; }
+
+    // iterators
+    typedef NodeList::iterator iterator;
+    typedef NodeList::const_iterator const_iterator;
+
+    iterator begin() { return m_children.begin(); }
+    iterator end() { return m_children.end(); }
+    const_iterator begin() const { return m_children.begin(); }
+    const_iterator end() const { return m_children.end(); }
+
+    Node* front() const { return at(0); }
+    Node* back() const { return at(size()-1); }
+
+    // util for generating error message
+    std::string generateErrorMessage(const std::string& message) const;
+
+    // extracting values operator
+    template <typename T>
+    friend void operator >> (const Node& node, T& value);
+
+    // get nodes
+    Node* at(const std::string& childTag) const;
+    Node* at(int pos) const;
+
+    // get values
+    std::string value(const std::string& def = std::string()) const;
+    std::string valueAt(const std::string childTag, const std::string& def = std::string()) const;
+
+    // read values
+    template <typename T>
+    T read(T def = T()) const {
+        T value = def;
+        *this >> value;
+        return value;
+    }
+
+    template <typename T>
+    T readAt(const std::string childTag, T def = T()) const {
+        T v = def;
+        for(NodeList::const_iterator it = m_children.begin(); it != m_children.end(); ++it) {
+            if((*it)->tag() == childTag) {
+                *(*it) >> v;
+                break;
+            }
+        }
+        return v;
+    }
+
+    void addNode(Node* node);
+
+private:
+    Parser* m_parser;
+    Node* m_parent;
+    int m_line;
+    NodeList m_children;
+    std::string m_tag;
+    std::string m_value;
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Node operators
+
+template <typename T>
+void operator >> (const Node& node, T& v)
+{
+    fml_convert(node.value(), v);
+}
+
+template <typename T>
+void operator >> (const Node& node, std::vector<T>& v)
+{
+    v.clear();
+    v.resize(node.size());
+    for(unsigned i=0;i<node.size();++i)
+        *node.at(i) >> v[i];
+}
+
+template <typename K, typename T>
+void operator >> (const Node& node, std::map<K, T>& m)
+{
+    m.clear();
+    for(Node::const_iterator it = node.begin(); it != node.end(); ++it) {
+        Node* child = (*it);
+        K k;
+        T v;
+        if(fml_convert<std::string, K>(child->tag(), k)) {
+            *child >> v;
+            m[k] = v;
+        }
+    }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Parser
+
+class Parser
+{
+    enum MultilineMode {
+        DONT_MULTILINE = 0,
+        MULTILINE_DONT_FOLD,
+        MULTILINE_FOLD_BLOCK,
+        MULTILINE_FOLD_FLOW
+    };
+
+public:
+    Parser(std::string what = std::string()) : m_rootNode(0), m_what(what) { }
+    Parser(std::istream& in, std::string what = std::string()) : m_rootNode(0), m_what(what) { load(in); }
+    ~Parser();
+
+    bool load(std::istream& in);
+
+    Node* getDocument() const { return m_rootNode; }
+    bool hasError() const { return !m_error.empty(); }
+    std::string getErrorMessage() { return m_error; }
+    std::string getWhat() { return m_what; }
+
+protected:
+    void parseLine(std::string& line);
+    Node* parseNode(std::string& line);
+    std::string parseTextScalar(std::string value);
+
+    void startMultilining(const std::string& param);
+    void stopMultilining();
+    bool parseMultiline(std::string line);
+    bool isMultilining() { return m_multilineMode != DONT_MULTILINE; }
+
+    void setErrorMessage(const std::string& message, int line = 0);
+
+private:
+    int m_currentDepth;
+    int m_currentLine;
+    Node* m_currentParent;
+    Node* m_previousNode;
+    Node* m_rootNode;
+    MultilineMode m_multilineMode;
+    std::string m_multilineData;
+    std::string m_error;
+    std::string m_what;
+};
+
+} // namespace FML {
+
+// enable usage with foreach
+namespace boost
+{
+    // specialize range_mutable_iterator and range_const_iterator in namespace boost
+    template<>
+    struct range_mutable_iterator< FML::Node >
+    {
+        typedef FML::Node::iterator type;
+    };
+
+    template<>
+    struct range_const_iterator< FML::Node >
+    {
+        typedef FML::Node::const_iterator type;
+    };
+}
+#endif // FML_H
diff --git a/src/framework/util/point.h b/src/framework/util/point.h
index 5de0d42f..aae4b88c 100644
--- a/src/framework/util/point.h
+++ b/src/framework/util/point.h
@@ -85,4 +85,11 @@ inline std::ostream& operator<<(std::ostream& out, const TPoint<T>& point)
     return out;
 }
 
+template <class T>
+inline void operator>>(const FML::Node& node, TPoint<T>& point)
+{
+    *node.at(0) >> point.x;
+    *node.at(1) >> point.y;
+}
+
 #endif
diff --git a/src/framework/util/rect.h b/src/framework/util/rect.h
index 86841f5f..dfa810d2 100644
--- a/src/framework/util/rect.h
+++ b/src/framework/util/rect.h
@@ -309,4 +309,15 @@ inline std::ostream& operator<<(std::ostream& out, const TRect<T>& rect)
     return out;
 }
 
+template <class T>
+inline void operator>>(const FML::Node& node, TRect<T>& rect)
+{
+    T x, y, width, height;
+    *node.at(0) >> x;
+    *node.at(1) >> y;
+    *node.at(2) >> width;
+    *node.at(3) >> height;
+    rect.setRect(x, y, width, height);
+}
+
 #endif // RECT_H
diff --git a/src/framework/util/size.h b/src/framework/util/size.h
index b5016f3f..f22449b6 100644
--- a/src/framework/util/size.h
+++ b/src/framework/util/size.h
@@ -112,11 +112,12 @@ typedef TSize<int> Size;
 typedef TSize<float> SizeF;
 
 template <class T>
-inline std::ostream& operator<<(std::ostream& out, const TSize<T>& size)
+inline void operator>>(const FML::Node& node, TSize<T>& size)
 {
-    out << "Size(" << size.width() << ","
-                   << size.height() <<  ")";
-    return out;
+    T w, h;
+    *node.at(0) >> w;
+    *node.at(1) >> h;
+    size.setSize(w, h);
 }
 
 #endif
diff --git a/src/framework/util/yaml.h b/src/framework/util/yaml.h
deleted file mode 100644
index 6b74b875..00000000
--- a/src/framework/util/yaml.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/* The MIT License
- *
- * Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-
-#ifndef YAML_H
-#define YAML_H
-
-#include <prerequisites.h>
-#include <yaml-cpp/yaml.h>
-
-inline void operator>>(const YAML::Node& node, Color& color)
-{
-    int r, g, b, a;
-    node[0] >> r;
-    node[1] >> g;
-    node[2] >> b;
-    node[3] >> a;
-    color.setRGBA(r,g,b,a);
-}
-
-template <class T>
-inline void operator>>(const YAML::Node& node, TPoint<T>& point)
-{
-    node[0] >> point.x;
-    node[1] >> point.y;
-}
-
-template <class T>
-inline void operator>>(const YAML::Node& node, TRect<T>& rect)
-{
-    T x, y, width, height;
-    node[0] >> x;
-    node[1] >> y;
-    node[2] >> width;
-    node[3] >> height;
-    rect.setRect(x, y, width, height);
-}
-
-template <class T>
-inline void operator>>(const YAML::Node& node, TSize<T>& size)
-{
-    T w, h;
-    node[0] >> w;
-    node[1] >> h;
-    size.setSize(w, h);
-}
-
-template<class T>
-inline T yamlRead(const YAML::Node& node)
-{
-    return node.to<T>();
-}
-
-template<class T>
-inline T yamlRead(const YAML::Node& node, const char *name)
-{
-    T value;
-    if(node.Type() == YAML::NodeType::Map)
-        node[name] >> value;
-    return value;
-}
-
-template<class T>
-inline T yamlRead(const YAML::Node& node, const char *name, const T& defaultValue)
-{
-    T value = defaultValue;
-    if(node.Type() == YAML::NodeType::Map && node.FindValue(name))
-        node[name] >> value;
-    return value;
-}
-
-inline bool yamlHasValue(const YAML::Node& node, const char *name)
-{
-    return (node.Type() == YAML::NodeType::Map && node.FindValue(name) != NULL);
-}
-
-inline std::string yamlErrorDesc(const YAML::Node& node, const std::string& error)
-{
-    return YAML::Exception(node.GetMark(), error.c_str()).what();
-}
-
-inline void yamlThrowError(const YAML::Node& node, const std::string& error)
-{
-    throw YAML::Exception(node.GetMark(), error.c_str());
-}
-
-template<class A, class B>
-inline std::map<A,B> yamlReadMap(const YAML::Node& node, const char *name)
-{
-    std::map<A,B> map;
-    if(node.Type() == YAML::NodeType::Map) {
-        if(const YAML::Node* mapNode = node.FindValue(name)) {
-            for(auto it = mapNode->begin(); it != mapNode->end(); ++it) {
-                A a;
-                B b;
-                it.first() >> a;
-                it.second() >> b;
-                map[a] = b;
-            }
-        }
-    }
-    return map;
-}
-
-#endif // YAML_H
diff --git a/src/main.cpp b/src/main.cpp
index 7736ea88..c8ad2028 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -32,46 +32,40 @@
 #include <script/luascript.h>
 #include <ui/uicontainer.h>
 
-/// Catches signals so we can exit nicely
 void signal_handler(int sig)
 {
+    static bool stopping = false;
     switch(sig) {
         case SIGTERM:
         case SIGINT:
-        {
-            static bool stopping = false;
             if(!stopping) {
                 stopping = true;
                 g_engine.onClose();
             }
             break;
-        }
     }
 }
 
-/// Default configurations
-void setDefaultConfigs()
+void loadDefaultConfigs()
 {
     // default size
     int defWidth = 550;
     int defHeight = 450;
 
-    // init on screen center
-    g_configs.setValue("window x", (Platform::getDisplayWidth() - defWidth)/2);
-    g_configs.setValue("window y", (Platform::getDisplayHeight() - defHeight)/2);
-
-    g_configs.setValue("window width", defWidth);
-    g_configs.setValue("window height", defHeight);
-    g_configs.setValue("window maximized", false);
+    g_configs.set("window x", (Platform::getDisplayWidth() - defWidth)/2);
+    g_configs.set("window y", (Platform::getDisplayHeight() - defHeight)/2);
+    g_configs.set("window width", defWidth);
+    g_configs.set("window height", defHeight);
+    g_configs.set("window maximized", false);
 }
 
 void saveConfigs()
 {
-    g_configs.setValue("window x", Platform::getWindowX());
-    g_configs.setValue("window y", Platform::getWindowY());
-    g_configs.setValue("window width", Platform::getWindowWidth());
-    g_configs.setValue("window height", Platform::getWindowHeight());
-    g_configs.setValue("window maximized", Platform::isWindowMaximized());
+    g_configs.set("window x", Platform::getWindowX());
+    g_configs.set("window y", Platform::getWindowY());
+    g_configs.set("window width", Platform::getWindowWidth());
+    g_configs.set("window height", Platform::getWindowHeight());
+    g_configs.set("window maximized", Platform::isWindowMaximized());
     g_configs.save();
 }
 
@@ -89,28 +83,23 @@ int main(int argc, const char *argv[])
         args.push_back(argv[i]);
 #endif
 
-    // install our signal handler
+    logInfo("OTClient 0.2.0");
+
+    // install exit signal handler
     signal(SIGTERM, signal_handler);
     signal(SIGINT, signal_handler);
 
     // init platform stuff
     Platform::init("OTClient");
 
-    // init random numbers
-    std::srand(std::time(NULL));
-
-    // init resources
+    // load resources paths
     g_resources.init(args[0].c_str());
 
-    // before loading configurations set the default ones
-    setDefaultConfigs();
-
     // load configurations
+    loadDefaultConfigs();
     if(!g_configs.load("config.yml"))
         logInfo("Could not read configuration file, default configurations will be used.");
 
-    logInfo("OTClient 0.2.0");
-
     // create the window
     Platform::createWindow(g_configs.get("window x"), g_configs.get("window y"),
                            g_configs.get("window width"), g_configs.get("window height"),
@@ -136,15 +125,9 @@ int main(int argc, const char *argv[])
 
     // terminate stuff
     g_engine.terminate();
-
     g_uiSkins.terminate();
-
-    // save configurations before exiting
     saveConfigs();
-
     Platform::terminate();
-
-    // unload resources
     g_resources.terminate();
     return 0;
 }

From f5a15939b2cd8499969745b0addee500c130f2ce Mon Sep 17 00:00:00 2001
From: Eduardo Bart <edub4rt@gmail.com>
Date: Sat, 21 May 2011 15:40:06 -0300
Subject: [PATCH 2/2] fix bug on how lua detect source paths

---
 data/modules/mainmenu/entergamewindow.yml | 22 ++++++-------
 data/modules/mainmenu/infowindow.yml      | 26 +++++++--------
 data/modules/mainmenu/mainmenu.yml        | 18 +++++-----
 data/modules/mainmenu/optionswindow.yml   | 40 +++++++++++------------
 data/modules/messagebox/messagebox.lua    |  2 +-
 src/framework/core/resources.cpp          |  5 +--
 src/framework/script/luascript.cpp        | 25 ++++++++++----
 src/framework/script/luascript.h          |  2 +-
 src/framework/ui/uiloader.cpp             |  4 +--
 9 files changed, 78 insertions(+), 66 deletions(-)

diff --git a/data/modules/mainmenu/entergamewindow.yml b/data/modules/mainmenu/entergamewindow.yml
index b07af1e4..228d342b 100644
--- a/data/modules/mainmenu/entergamewindow.yml
+++ b/data/modules/mainmenu/entergamewindow.yml
@@ -1,34 +1,34 @@
-window#enterGameWindow:
+window#enterGameWindow
   title: Enter Game
   size: [236, 178]
   anchors.horizontalCenter: parent.horizontalCenter
   anchors.verticalCenter: parent.verticalCenter
   onLoad: self.locked = true
 
-  label#accountNameLabel:
+  label#accountNameLabel
     text: Account name
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 18
     margin.top: 33
 
-  label#passwordLabel:
+  label#passwordLabel
     text: "Password:"
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 18
     margin.top: 62
 
-  label#createAccountLabel:
+  label#createAccountLabel
     text: |
-          If you don't have
-          an account yet
+      If you don't have
+      an account yet
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 18
     margin.top: 87
 
-  button#createAccountButton:
+  button#createAccountButton
     text: Create Account
     anchors.left: parent.left
     anchors.top: parent.top
@@ -36,7 +36,7 @@ window#enterGameWindow:
     margin.left: 132
     onClick: messageBox("Error", "Not implemented yet")
 
-  button#okButton:
+  button#okButton
     text: Ok
     size: [43, 20]
     anchors.right: parent.right
@@ -44,7 +44,7 @@ window#enterGameWindow:
     margin.bottom: 10
     margin.right: 66
 
-  button#cancelButton:
+  button#cancelButton
     text: Cancel
     size: [43, 20]
     anchors.right: parent.right
@@ -53,13 +53,13 @@ window#enterGameWindow:
     margin.right: 13
     onClick: self.parent:destroy()
 
-  textEdit#accountNameTextEdit:
+  textEdit#accountNameTextEdit
     anchors.right: parent.right
     anchors.top: parent.top
     margin.top: 32
     margin.right: 18
 
-  textEdit#passwordTextEdit:
+  textEdit#passwordTextEdit
     anchors.right: parent.right
     anchors.top: parent.top
     margin.top: 61
diff --git a/data/modules/mainmenu/infowindow.yml b/data/modules/mainmenu/infowindow.yml
index 67d8e95b..ec6a90b9 100644
--- a/data/modules/mainmenu/infowindow.yml
+++ b/data/modules/mainmenu/infowindow.yml
@@ -1,11 +1,11 @@
-window#infoWindow:
+window#infoWindow
   title: Info
   size: [244, 221]
   anchors.horizontalCenter: parent.horizontalCenter
   anchors.verticalCenter: parent.verticalCenter
   onLoad: self.locked = true
 
-  panel#infoPanel:
+  panel#infoPanel
     skin: flatPanel
     size: [208, 129]
     anchors.left: parent.left
@@ -13,31 +13,31 @@ window#infoWindow:
     margin.top: 32
     margin.left: 18
 
-    label#infoLabel:
+    label#infoLabel
       align: center
       text: |-
-            OTClient
-            Version 0.2.0
-            Created by edubart
+        OTClient
+        Version 0.2.0
+        Created by edubart
       anchors.horizontalCenter: parent.horizontalCenter
       anchors.top: parent.top
       margin.top: 20
-            
-    lineDecoration#bottomSeparator:
-      size: [190,2]
+
+    lineDecoration#bottomSeparator
+      size: [190, 2]
       anchors.left: parent.left
       anchors.top: parent.top
       margin.top: 83
       margin.left: 9
 
-    label#websiteLabel:
+    label#websiteLabel
       text: Official Website
       anchors.left: parent.left
       anchors.bottom: parent.bottom
       margin.bottom: 14
       margin.left: 9
 
-    button#websiteButton:
+    button#websiteButton
       text: Github Page
       size: [80,22]
       anchors.right: parent.right
@@ -45,7 +45,7 @@ window#infoWindow:
       margin.bottom: 9
       margin.right: 9
 
-  lineDecoration#bottomSeparator:
+  lineDecoration#bottomSeparator
     anchors.left: parent.left
     anchors.right: parent.right
     anchors.bottom: parent.bottom
@@ -53,7 +53,7 @@ window#infoWindow:
     margin.left: 13
     margin.right: 13
 
-  button#okButton:
+  button#okButton
     text: Ok
     size: [43, 20]
     anchors.left: parent.left
diff --git a/data/modules/mainmenu/mainmenu.yml b/data/modules/mainmenu/mainmenu.yml
index 84489f30..5815741a 100644
--- a/data/modules/mainmenu/mainmenu.yml
+++ b/data/modules/mainmenu/mainmenu.yml
@@ -1,11 +1,11 @@
-panel#background:
+panel#background
   skin: mainMenuBackground
   anchors.left: parent.left
   anchors.right: parent.right
   anchors.top: parent.top
   anchors.bottom: parent.bottom
 
-  panel#icos4d:
+  panel#icos4d
     skin:
       image: /skins/lightness/mouse.png
     anchors.left: parent.left
@@ -13,7 +13,7 @@ panel#background:
     margin.left: -2
     margin.top: 70
 
-  panel#mouse:
+  panel#mouse
     skin:
       image: /skins/lightness/icos4d.png
     anchors.right: parent.right
@@ -21,7 +21,7 @@ panel#background:
     margin.left: 60
     margin.top: 70
 
-  panel#mainMenu:
+  panel#mainMenu
     skin: roundedGridPanel
     size: [117, 171]
     anchors.left: parent.left
@@ -29,35 +29,35 @@ panel#background:
     margin.left: 60
     margin.bottom: 70
 
-    button#enterGameButton:
+    button#enterGameButton
       text: Enter Game
       anchors.top: parent.top
       anchors.horizontalCenter: parent.horizontalCenter
       margin.top: 16
       onClick: UI.load("entergamewindow.yml")
 
-    button#accessAccountButton:
+    button#accessAccountButton
       text: Access Account
       anchors.top: parent.top
       anchors.horizontalCenter: parent.horizontalCenter
       margin.top: 46
       onClick: messageBox("Error", "Not implemented yet")
 
-    button#optionsButton:
+    button#optionsButton
       text: Options
       anchors.top: parent.top
       anchors.horizontalCenter: parent.horizontalCenter
       margin.top: 76
       onClick: UI.load("optionswindow.yml")
 
-    button#infoButton:
+    button#infoButton
       text: Info
       anchors.top: parent.top
       anchors.horizontalCenter: parent.horizontalCenter
       margin.top: 106
       onClick: UI.load("infowindow.yml")
 
-    button#exitGameButton:
+    button#exitGameButton
       text: Exit
       anchors.top: parent.top
       anchors.horizontalCenter: parent.horizontalCenter
diff --git a/data/modules/mainmenu/optionswindow.yml b/data/modules/mainmenu/optionswindow.yml
index 3ef3f96c..11f380f5 100644
--- a/data/modules/mainmenu/optionswindow.yml
+++ b/data/modules/mainmenu/optionswindow.yml
@@ -1,4 +1,4 @@
-window#optionsWindow:
+window#optionsWindow
   title: Options
   size: [286, 262]
   anchors.horizontalCenter: parent.horizontalCenter
@@ -6,48 +6,48 @@ window#optionsWindow:
   onLoad: self.locked = true
 
   # general
-  button#generalButton:
+  button#generalButton
     text: General
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 18
     margin.top: 32
 
-  label#generalLabel:
+  label#generalLabel
     text: |-
-          Change general
-          game options
+      Change general
+      game options
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 117
     margin.top: 29
 
   # graphics
-  button#graphicsButton:
+  button#graphicsButton
     text: Graphics
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 18
     margin.top: 65
 
-  label#graphicsLabel:
+  label#graphicsLabel
     text: |-
-          Change graphics and
-          performance settings
+      Change graphics and
+      performance settings
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 117
     margin.top: 62
 
   # console
-  button#consoleButton:
+  button#consoleButton
     text: Console
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 18
     margin.top: 98
 
-  label#consoleLabel:
+  label#consoleLabel
     text: Customise the console
     anchors.left: parent.left
     anchors.top: parent.top
@@ -55,21 +55,21 @@ window#optionsWindow:
     margin.top: 95
 
   # hotkeys
-  button#hotkeysButton:
+  button#hotkeysButton
     text: Hotkeys
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 18
     margin.top: 131
 
-  label#hotkeysLabel:
+  label#hotkeysLabel
     text: Edit your hotkey texts
     anchors.left: parent.left
     anchors.top: parent.top
     margin.left: 117
     margin.top: 128
 
-  lineDecoration#middleSeparator:
+  lineDecoration#middleSeparator
     anchors.left: parent.left
     anchors.right: parent.right
     anchors.bottom: parent.bottom
@@ -78,23 +78,23 @@ window#optionsWindow:
     margin.right: 18
 
   # motd
-  button#motdButton:
+  button#motdButton
     text: Motd
     anchors.left: parent.left
     anchors.bottom: parent.bottom
     margin.left: 18
     margin.bottom: 60
 
-  label#motdLabel:
+  label#motdLabel
     text: |-
-          Show the most recent
-          Message of the Day
+      Show the most recent
+      Message of the Day
     anchors.left: parent.left
     anchors.bottom: parent.bottom
     margin.left: 117
     margin.bottom: 56
 
-  lineDecoration#bottomSeparator:
+  lineDecoration#bottomSeparator
     anchors.left: parent.left
     anchors.right: parent.right
     anchors.bottom: parent.bottom
@@ -103,7 +103,7 @@ window#optionsWindow:
     margin.right: 13
 
   # ok button
-  button#okButton:
+  button#okButton
     text: Ok
     size: [43, 20]
     anchors.right: parent.right
diff --git a/data/modules/messagebox/messagebox.lua b/data/modules/messagebox/messagebox.lua
index a27dd959..f4f67e14 100644
--- a/data/modules/messagebox/messagebox.lua
+++ b/data/modules/messagebox/messagebox.lua
@@ -7,5 +7,5 @@ function messageBox(title, text)
     msgBox.locked = true
     msgBox.title = title
     msgBox:child("textLabel").text = text
-    msgBox:child("okButton").onClick = autoDestroyParentz
+    msgBox:child("okButton").onClick = autoDestroyParent
 end
diff --git a/src/framework/core/resources.cpp b/src/framework/core/resources.cpp
index 354e10f8..608be2a6 100644
--- a/src/framework/core/resources.cpp
+++ b/src/framework/core/resources.cpp
@@ -105,10 +105,11 @@ bool Resources::directoryExists(const std::string& directoryName)
 
 bool Resources::loadFile(const std::string& fileName, std::iostream& out)
 {
+    std::string fullPath = resolvePath(fileName);
     out.clear(std::ios::goodbit);
-    PHYSFS_file *file = PHYSFS_openRead(resolvePath(fileName).c_str());
+    PHYSFS_file *file = PHYSFS_openRead(fullPath.c_str());
     if(!file) {
-        flogError("ERROR: Failed to load file \"%s\": %s", fileName.c_str() % PHYSFS_getLastError());
+        flogError("ERROR: Failed to load file \"%s\": %s", fullPath.c_str() % PHYSFS_getLastError());
         out.clear(std::ios::failbit);
         return false;
     } else {
diff --git a/src/framework/script/luascript.cpp b/src/framework/script/luascript.cpp
index b65f2f4b..3006b372 100644
--- a/src/framework/script/luascript.cpp
+++ b/src/framework/script/luascript.cpp
@@ -379,20 +379,25 @@ void LuaScript::pushRef(int ref)
     lua_rawgeti(L, LUA_REGISTRYINDEX, ref);
 }
 
-std::string LuaScript::getFunctionSourcePath()
+std::string LuaScript::getFunctionSourcePath(bool functionIsOnStack, int level)
 {
     std::string path;
 
     lua_Debug ar;
     memset(&ar, 0, sizeof(ar));
-    lua_getinfo(L, ">Sn", &ar);
+    if(functionIsOnStack)
+        lua_getinfo(L, ">Sn", &ar);
+    else {
+        if(lua_getstack(L, level-1, &ar) == 1)
+            lua_getinfo(L, "Sn", &ar);
+    }
 
-    // c function, we must get information of level above
+    // c function, we must get information of a level above
     if(strcmp("C", ar.what) == 0) {
         memset(&ar, 0, sizeof(ar));
-        if(lua_getstack(L, 1, &ar) == 1) {
+        if(lua_getstack(L, level, &ar) == 1) {
             lua_getinfo(L, "f", &ar);
-            return getFunctionSourcePath();
+            return getFunctionSourcePath(true, level+1);
         }
 
     } else {
@@ -411,7 +416,7 @@ std::string LuaScript::getFunctionSourcePath()
 bool LuaScript::callFunction(int numArgs, int numRets)
 {
     pushValue(-numArgs - 1);
-    g_resources.pushCurrentPath(getFunctionSourcePath());
+    g_resources.pushCurrentPath(getFunctionSourcePath(true));
 
     int size = getStackSize();
     int errorIndex = -numArgs - 2;
@@ -726,8 +731,14 @@ int LuaScript::luaFunctionCallback(lua_State* L)
 {
     // look for function id
     int id = lua_tonumber(L, lua_upvalueindex(1));
+
+    g_resources.pushCurrentPath(g_lua.getFunctionSourcePath(false));
+
     // call the function
-    return (*(g_lua.m_functions[id]))();
+    int ret = (*(g_lua.m_functions[id]))();
+
+    g_resources.popCurrentPath();
+    return ret;
 }
 
 int LuaScript::luaErrorHandler(lua_State *L)
diff --git a/src/framework/script/luascript.h b/src/framework/script/luascript.h
index 4ffb0a9d..0e9b615f 100644
--- a/src/framework/script/luascript.h
+++ b/src/framework/script/luascript.h
@@ -104,7 +104,7 @@ public:
     void pushValue(int index = -1);
     void pushRef(int ref);
 
-    std::string getFunctionSourcePath();
+    std::string getFunctionSourcePath(bool functionIsOnStack, int level = 1);
 
     bool callFunction(int numArgs = 0, int numRets = 0);
     void callModuleField(const std::string& module, const std::string& field);
diff --git a/src/framework/ui/uiloader.cpp b/src/framework/ui/uiloader.cpp
index 35a67387..133f6d16 100644
--- a/src/framework/ui/uiloader.cpp
+++ b/src/framework/ui/uiloader.cpp
@@ -71,7 +71,7 @@ UIElementPtr UILoader::loadFromFile(std::string filePath, const UIContainerPtr&
 {
     std::stringstream fin;
     if(!g_resources.loadFile(filePath, fin)) {
-        flogError("ERROR: Could not load ui file \"%s", filePath.c_str());
+        flogError("ERROR: Could not load ui %s", filePath.c_str());
         return UIElementPtr();
     }
 
@@ -106,7 +106,7 @@ UIElementPtr UILoader::loadFromFile(std::string filePath, const UIContainerPtr&
         element->onLoad();
         return element;
     } else {
-        flogError("ERROR: Failed to load ui file \"%s\":\n  %s", filePath.c_str() % parser.getErrorMessage());
+        flogError("ERROR: Failed to load ui %s: %s", filePath.c_str() % parser.getErrorMessage());
     }
 
     return UIElementPtr();