what the fuck it's 1:30 AM. god

source/base/StarAssets.cpp

@@ -1,4 +1,5 @@
 #include "StarAssets.hpp"
+#include "StarAssetPath.hpp"
 #include "StarFile.hpp"
 #include "StarTime.hpp"
 #include "StarDirectoryAssetSource.hpp"
@@ -59,169 +60,6 @@ static void validatePath(AssetPath const& components, bool canContainSubPath, bo
     throw AssetException::format("Path '%s' cannot contain directives", components);
 }
 
-// The filename is everything after the last slash (excluding directives) and
-// up to the first directive marker.
-static Maybe<pair<size_t, size_t>> findFilenameRange(std::string const& pathUtf8) {
-  size_t firstDirectiveOrSubPath = pathUtf8.find_first_of(":?");
-  size_t filenameStart = 0;
-  while (true) {
-    size_t find = pathUtf8.find('/', filenameStart);
-    if (find >= firstDirectiveOrSubPath)
-      break;
-    filenameStart = find + 1;
-  }
-
-  if (filenameStart == NPos) {
-    return {};
-  } else if (firstDirectiveOrSubPath == NPos) {
-    return {{filenameStart, pathUtf8.size()}};
-  } else {
-    return {{filenameStart, firstDirectiveOrSubPath}};
-  }
-}
-
-AssetPath AssetPath::split(String const& path) {
-  auto i = path.begin();
-  auto end = path.end();
-
-  AssetPath components;
-
-  // base paths cannot have any ':' or '?' characters, stop at the first one.
-  while (i != end) {
-    String::Char c = *i;
-    if (c == ':' || c == '?')
-      break;
-
-    components.basePath += c;
-    ++i;
-  }
-
-  // Sub-paths must immediately follow base paths and must start with a ':',
-  // after this point any further ':' characters are not special.
-  if (i != end && *i == ':') {
-    ++i;
-    while (i != end) {
-      String::Char c = *i;
-      if (c == '?')
-        break;
-
-      if (!components.subPath)
-        components.subPath.emplace();
-
-      *components.subPath += c;
-      ++i;
-    }
-  }
-
-  // Directives must follow the base path and optional sub-path, and each
-  // directive is separated by one or more '?' characters.
-  while (i != end && *i == '?') {
-    ++i;
-    String directive;
-    while (i != end) {
-      String::Char c = *i;
-      if (c == '?')
-        break;
-
-      directive += c;
-      ++i;
-    }
-    if (!directive.empty())
-      components.directives.append(move(directive));
-  }
-
-  starAssert(i == end);
-
-  return components;
-}
-
-String AssetPath::join(AssetPath const& components) {
-  return toString(components);
-}
-
-String AssetPath::setSubPath(String const& path, String const& subPath) {
-  auto components = split(path);
-  components.subPath = subPath;
-  return join(components);
-}
-
-String AssetPath::removeSubPath(String const& path) {
-  auto components = split(path);
-  components.subPath.reset();
-  return join(components);
-}
-
-String AssetPath::getDirectives(String const& path) {
-  size_t firstDirective = path.find('?');
-  if (firstDirective == NPos)
-    return {};
-  return path.substr(firstDirective + 1);
-}
-
-String AssetPath::addDirectives(String const& path, String const& directives) {
-  return String::joinWith("?", path, directives);
-}
-
-String AssetPath::removeDirectives(String const& path) {
-  size_t firstDirective = path.find('?');
-  if (firstDirective == NPos)
-    return path;
-  return path.substr(0, firstDirective);
-}
-
-String AssetPath::directory(String const& path) {
-  if (auto p = findFilenameRange(path.utf8())) {
-    return String(path.utf8().substr(0, p->first));
-  } else {
-    return String();
-  }
-}
-
-String AssetPath::filename(String const& path) {
-  if (auto p = findFilenameRange(path.utf8())) {
-    return String(path.utf8().substr(p->first, p->second));
-  } else {
-    return String();
-  }
-}
-
-String AssetPath::extension(String const& path) {
-  auto file = filename(path);
-  auto lastDot = file.findLast(".");
-  if (lastDot == NPos)
-    return "";
-
-  return file.substr(lastDot + 1);
-}
-
-String AssetPath::relativeTo(String const& sourcePath, String const& givenPath) {
-  if (!givenPath.empty() && givenPath[0] == '/')
-    return givenPath;
-
-  auto path = directory(sourcePath);
-  path.append(givenPath);
-  return path;
-}
-
-bool AssetPath::operator==(AssetPath const& rhs) const {
-  return tie(basePath, subPath, directives) == tie(rhs.basePath, rhs.subPath, rhs.directives);
-}
-
-std::ostream& operator<<(std::ostream& os, AssetPath const& rhs) {
-  os << rhs.basePath;
-  if (rhs.subPath) {
-    os << ":";
-    os << *rhs.subPath;
-  }
-
-  for (auto const& directive : rhs.directives) {
-    os << "?";
-    os << directive;
-  }
-
-  return os;
-}
-
 Maybe<RectU> FramesSpecification::getRect(String const& frame) const {
   if (auto alias = aliases.ptr(frame)) {
     return frames.get(*alias);

source/base/StarAssets.hpp

@@ -7,6 +7,7 @@
 #include "StarBiMap.hpp"
 #include "StarThread.hpp"
 #include "StarAssetSource.hpp"
+#include "StarAssetPath.hpp"
 
 namespace Star {
 
@@ -18,61 +19,6 @@ STAR_CLASS(Assets);
 
 STAR_EXCEPTION(AssetException, StarException);
 
-// Asset paths are not filesystem paths.  '/' is always the directory separator,
-// and it is not possible to escape any asset source directory.  '\' is never a
-// valid directory separator.  All asset paths are considered case-insensitive.
-//
-// In addition to the path portion of the asset path, some asset types may also
-// have a sub-path, which is always separated from the path portion of the asset
-// by ':'.  There can be at most 1 sub-path component.
-//
-// Image paths may also have a directives portion of the full asset path, which
-// must come after the path and optional sub-path comopnent.  The directives
-// portion of the path starts with a '?', and '?' separates each subsquent
-// directive.
-struct AssetPath {
-  static AssetPath split(String const& path);
-  static String join(AssetPath const& path);
-
-  // Get / modify sub-path directly on a joined path string
-  static String setSubPath(String const& joinedPath, String const& subPath);
-  static String removeSubPath(String const& joinedPath);
-
-  // Get / modify directives directly on a joined path string
-  static String getDirectives(String const& joinedPath);
-  static String addDirectives(String const& joinedPath, String const& directives);
-  static String removeDirectives(String const& joinedPath);
-
-  // The base directory name for any given path, including the trailing '/'.
-  // Ignores sub-path and directives.
-  static String directory(String const& path);
-
-  // The file part of any given path, ignoring sub-path and directives.  Path
-  // must be a file not a directory.
-  static String filename(String const& path);
-
-  // The file extension of a given file path, ignoring directives and
-  // sub-paths.
-  static String extension(String const& path);
-
-  // Computes an absolute asset path from a relative path relative to another
-  // asset.  The sourcePath must be an absolute path (may point to a directory
-  // or an asset in a directory, and ignores ':' sub-path or ?  directives),
-  // and the givenPath may be either an absolute *or* a relative path.  If it
-  // is an absolute path, it is returned unchanged.  If it is a relative path,
-  // then it is computed as relative to the directory component of the
-  // sourcePath.
-  static String relativeTo(String const& sourcePath, String const& givenPath);
-
-  String basePath;
-  Maybe<String> subPath;
-  StringList directives;
-
-  bool operator==(AssetPath const& rhs) const;
-};
-
-std::ostream& operator<<(std::ostream& os, AssetPath const& rhs);
-
 // The contents of an assets .frames file, which can be associated with one or
 // more images, and specifies named sub-rects of those images.
 struct FramesSpecification {

source/core/CMakeLists.txt

@@ -7,6 +7,7 @@ SET (star_core_HEADERS
     StarAStar.hpp
     StarAlgorithm.hpp
     StarArray.hpp
+    StarAssetPath.hpp
     StarAtomicSharedPtr.hpp
     StarAudio.hpp
     StarBTree.hpp
@@ -23,6 +24,7 @@ SET (star_core_HEADERS
     StarDataStream.hpp
     StarDataStreamDevices.hpp
     StarDataStreamExtra.hpp
+    StarDirectives.hpp
     StarDynamicLib.hpp
     StarEither.hpp
     StarEncode.hpp
@@ -121,6 +123,7 @@ SET (star_core_HEADERS
 
 SET (star_core_SOURCES
     StarAudio.cpp
+    StarAssetPath.cpp
     StarBTreeDatabase.cpp
     StarBuffer.cpp
     StarByteArray.cpp
@@ -128,6 +131,7 @@ SET (star_core_SOURCES
     StarCompression.cpp
     StarDataStream.cpp
     StarDataStreamDevices.cpp
+    StarDirectives.cpp
     StarEncode.cpp
     StarFile.cpp
     StarFont.cpp

source/core/StarAssetPath.cpp

@@ -0,0 +1,165 @@
+#include "StarAssetPath.hpp"
+#include "StarLexicalCast.hpp"
+
+namespace Star {
+
+// The filename is everything after the last slash (excluding directives) and
+// up to the first directive marker.
+static Maybe<pair<size_t, size_t>> findFilenameRange(std::string const& pathUtf8) {
+  size_t firstDirectiveOrSubPath = pathUtf8.find_first_of(":?");
+  size_t filenameStart = 0;
+  while (true) {
+    size_t find = pathUtf8.find('/', filenameStart);
+    if (find >= firstDirectiveOrSubPath)
+      break;
+    filenameStart = find + 1;
+  }
+
+  if (filenameStart == NPos) {
+    return {};
+  } else if (firstDirectiveOrSubPath == NPos) {
+    return {{filenameStart, pathUtf8.size()}};
+  } else {
+    return {{filenameStart, firstDirectiveOrSubPath}};
+  }
+}
+
+AssetPath AssetPath::split(String const& path) {
+  auto i = path.begin();
+  auto end = path.end();
+
+  AssetPath components;
+
+  // base paths cannot have any ':' or '?' characters, stop at the first one.
+  while (i != end) {
+    String::Char c = *i;
+    if (c == ':' || c == '?')
+      break;
+
+    components.basePath += c;
+    ++i;
+  }
+
+  // Sub-paths must immediately follow base paths and must start with a ':',
+  // after this point any further ':' characters are not special.
+  if (i != end && *i == ':') {
+    ++i;
+    while (i != end) {
+      String::Char c = *i;
+      if (c == '?')
+        break;
+
+      if (!components.subPath)
+        components.subPath.emplace();
+
+      *components.subPath += c;
+      ++i;
+    }
+  }
+
+  // Directives must follow the base path and optional sub-path, and each
+  // directive is separated by one or more '?' characters.
+  while (i != end && *i == '?') {
+    String directives;
+    while (i != end) {
+      directives.append(*i);
+      ++i;
+    }
+
+    if (!directives.empty());
+      components.directives.append(move(directives));
+  }
+
+  starAssert(i == end);
+
+  return components;
+}
+
+String AssetPath::join(AssetPath const& components) {
+  return toString(components);
+}
+
+String AssetPath::setSubPath(String const& path, String const& subPath) {
+  auto components = split(path);
+  components.subPath = subPath;
+  return join(components);
+}
+
+String AssetPath::removeSubPath(String const& path) {
+  auto components = split(path);
+  components.subPath.reset();
+  return join(components);
+}
+
+String AssetPath::getDirectives(String const& path) {
+  size_t firstDirective = path.find('?');
+  if (firstDirective == NPos)
+    return {};
+  return path.substr(firstDirective + 1);
+}
+
+String AssetPath::addDirectives(String const& path, String const& directives) {
+  return String::joinWith("?", path, directives);
+}
+
+String AssetPath::removeDirectives(String const& path) {
+  size_t firstDirective = path.find('?');
+  if (firstDirective == NPos)
+    return path;
+  return path.substr(0, firstDirective);
+}
+
+String AssetPath::directory(String const& path) {
+  if (auto p = findFilenameRange(path.utf8())) {
+    return String(path.utf8().substr(0, p->first));
+  } else {
+    return String();
+  }
+}
+
+String AssetPath::filename(String const& path) {
+  if (auto p = findFilenameRange(path.utf8())) {
+    return String(path.utf8().substr(p->first, p->second));
+  } else {
+    return String();
+  }
+}
+
+String AssetPath::extension(String const& path) {
+  auto file = filename(path);
+  auto lastDot = file.findLast(".");
+  if (lastDot == NPos)
+    return "";
+
+  return file.substr(lastDot + 1);
+}
+
+String AssetPath::relativeTo(String const& sourcePath, String const& givenPath) {
+  if (!givenPath.empty() && givenPath[0] == '/')
+    return givenPath;
+
+  auto path = directory(sourcePath);
+  path.append(givenPath);
+  return path;
+}
+
+bool AssetPath::operator==(AssetPath const& rhs) const {
+  return tie(basePath, subPath, directives) == tie(rhs.basePath, rhs.subPath, rhs.directives);
+}
+
+std::ostream& operator<<(std::ostream& os, AssetPath const& rhs) {
+  os << rhs.basePath;
+  if (rhs.subPath) {
+    os << ":";
+    os << *rhs.subPath;
+  }
+
+  rhs.directives.forEach([&](ImageOperation const& operation, String const& string) {
+    os << "?";
+    os << string;
+   });
+
+  return os;
+}
+
+}

source/core/StarAssetPath.hpp

@@ -0,0 +1,65 @@
+#ifndef STAR_ASSET_PATH_HPP
+#define STAR_ASSET_PATH_HPP
+
+#include "StarDirectives.hpp"
+
+namespace Star {
+
+// Asset paths are not filesystem paths.  '/' is always the directory separator,
+// and it is not possible to escape any asset source directory.  '\' is never a
+// valid directory separator.  All asset paths are considered case-insensitive.
+//
+// In addition to the path portion of the asset path, some asset types may also
+// have a sub-path, which is always separated from the path portion of the asset
+// by ':'.  There can be at most 1 sub-path component.
+//
+// Image paths may also have a directives portion of the full asset path, which
+// must come after the path and optional sub-path comopnent.  The directives
+// portion of the path starts with a '?', and '?' separates each subsquent
+// directive.
+struct AssetPath {
+  static AssetPath split(String const& path);
+  static String join(AssetPath const& path);
+
+  // Get / modify sub-path directly on a joined path string
+  static String setSubPath(String const& joinedPath, String const& subPath);
+  static String removeSubPath(String const& joinedPath);
+
+  // Get / modify directives directly on a joined path string
+  static String getDirectives(String const& joinedPath);
+  static String addDirectives(String const& joinedPath, String const& directives);
+  static String removeDirectives(String const& joinedPath);
+
+  // The base directory name for any given path, including the trailing '/'.
+  // Ignores sub-path and directives.
+  static String directory(String const& path);
+
+  // The file part of any given path, ignoring sub-path and directives.  Path
+  // must be a file not a directory.
+  static String filename(String const& path);
+
+  // The file extension of a given file path, ignoring directives and
+  // sub-paths.
+  static String extension(String const& path);
+
+  // Computes an absolute asset path from a relative path relative to another
+  // asset.  The sourcePath must be an absolute path (may point to a directory
+  // or an asset in a directory, and ignores ':' sub-path or ?  directives),
+  // and the givenPath may be either an absolute *or* a relative path.  If it
+  // is an absolute path, it is returned unchanged.  If it is a relative path,
+  // then it is computed as relative to the directory component of the
+  // sourcePath.
+  static String relativeTo(String const& sourcePath, String const& givenPath);
+
+  String basePath;
+  Maybe<String> subPath;
+  NestedDirectives directives;
+
+  bool operator==(AssetPath const& rhs) const;
+};
+
+std::ostream& operator<<(std::ostream& os, AssetPath const& rhs);
+
+}
+
+#endif

source/core/StarDirectives.cpp

@@ -0,0 +1,154 @@
+#include "StarImage.hpp"
+#include "StarImageProcessing.hpp"
+#include "StarDirectives.hpp"
+
+namespace Star {
+
+NestedDirectives::NestedDirectives() : m_root(nullptr) {}
+NestedDirectives::NestedDirectives(String const& directives) {
+  parseDirectivesIntoLeaf(directives);
+}
+NestedDirectives::NestedDirectives(String&& directives) {
+  String mine = move(directives); // most useless move constructor in the world
+  parseDirectivesIntoLeaf(mine);
+}
+
+void NestedDirectives::parseDirectivesIntoLeaf(String const& directives) {
+  Leaf leaf;
+  for (String& op : directives.split('?')) {
+    if (!op.empty()) {
+      leaf.operations.append(imageOperationFromString(op));
+      leaf.strings.append(move(op));
+    }
+  }
+  m_root = std::make_shared<Cell>(move(leaf));
+}
+
+bool NestedDirectives::empty() const {
+  return (bool)m_root;
+}
+
+void NestedDirectives::append(const NestedDirectives& other) {
+  convertToBranches().emplace_back(other.branch());
+}
+
+String NestedDirectives::toString() const {
+  String string;
+  addToString(string);
+  return string;
+}
+
+void NestedDirectives::addToString(String& string) const {
+  if (m_root)
+    m_root->buildString(string);
+}
+
+void NestedDirectives::forEach(LeafCallback callback) const {
+  if (m_root)
+    m_root->forEach(callback);
+}
+
+void NestedDirectives::forEachPair(LeafPairCallback callback) const {
+  if (m_root) {
+    LeafCallback pairCallback = [&](Leaf const& leaf) {
+      size_t length = leaf.length();
+      for (size_t i = 0; i != length; ++i)
+        callback(leaf.operations.at(i), leaf.strings.at(i));
+    };
+    m_root->forEach(pairCallback);
+  }
+}
+
+bool NestedDirectives::forEachAbortable(AbortableLeafCallback callback) const {
+  if (!m_root)
+    return false;
+  else
+    return m_root->forEachAbortable(callback);
+}
+
+bool NestedDirectives::forEachPairAbortable(AbortableLeafPairCallback callback) const {
+  if (!m_root)
+    return false;
+  else {
+    AbortableLeafCallback pairCallback = [&](Leaf const& leaf) -> bool {
+      size_t length = leaf.length();
+      for (size_t i = 0; i != length; ++i) {
+        if (!callback(leaf.operations.at(i), leaf.strings.at(i)))
+          return false;
+      }
+
+      return true;
+    };
+    return m_root->forEachAbortable(pairCallback);
+  }
+}
+
+Image NestedDirectives::apply(Image& image) const {
+  Image current = image;
+  forEach([&](Leaf const& leaf) {
+    current = processImageOperations(leaf.operations, current);
+  });
+  return current;
+}
+
+NestedDirectives::Branches& NestedDirectives::convertToBranches() {
+  if (!m_root) {
+    m_root = std::make_shared<Cell>(Branches());
+  }
+  else if (m_root->value.is<Branches>())
+    return;
+
+  Leaf& leaf = m_root->value.get<Leaf>();
+  Branches newBranches;
+  newBranches.emplace_back(std::make_shared<Cell const>(move(leaf)));
+  m_root->value = move(newBranches);
+  return m_root->value.get<Branches>();
+}
+
+size_t NestedDirectives::Leaf::length() const {
+  if (operations.size() != strings.size())
+    throw DirectivesException("NestedDirectives leaf has mismatching operation/string List sizes");
+
+  return operations.size();
+}
+
+NestedDirectives::Cell::Cell() : value(Leaf()) {};
+NestedDirectives::Cell::Cell(Leaf&& leaf) : value(move(leaf)) {};
+NestedDirectives::Cell::Cell(Branches&& branches) : value(move(branches)) {};
+NestedDirectives::Cell::Cell(const Leaf& leaf) : value(leaf) {};
+NestedDirectives::Cell::Cell(const Branches& branches) : value(branches) {};
+
+void NestedDirectives::Cell::buildString(String& string) const {
+  if (auto leaf = value.ptr<Leaf>())
+    for (auto& leafString : leaf->strings) {
+      string += "?";
+      string += leafString;
+    }
+  else {
+    for (auto& branch : value.get<Branches>())
+      branch->buildString(string);
+  }
+}
+
+void NestedDirectives::Cell::forEach(LeafCallback& callback) const {
+  if (auto leaf = value.ptr<Leaf>())
+    callback(*leaf);
+  else {
+    for (auto& branch : value.get<Branches>())
+      branch->forEach(callback);
+  }
+}
+
+bool NestedDirectives::Cell::forEachAbortable(AbortableLeafCallback& callback) const {
+  if (auto leaf = value.ptr<Leaf>()) {
+    if (!callback(*leaf))
+      return false;
+  } else {
+    for (auto& branch : value.get<Branches>())
+      if (!branch->forEachAbortable(callback))
+        return false;
+  }
+  return true;
+}
+
+}

source/core/StarDirectives.hpp

@@ -0,0 +1,78 @@
+#ifndef STAR_DIRECTIVES_HPP
+#define STAR_DIRECTIVES_HPP
+
+#include "StarImageProcessing.hpp"
+
+namespace Star {
+
+STAR_CLASS(NestedDirectives);
+STAR_EXCEPTION(DirectivesException, StarException);
+
+// Kae: My attempt at reducing memory allocation and per-frame string parsing for extremely long directives
+class NestedDirectives {
+public:
+  struct Leaf {
+    List<ImageOperation> operations;
+    List<String> strings;
+
+    size_t length() const;
+  };
+
+  typedef function<void(Leaf const&)> LeafCallback;
+  typedef function<void(ImageOperation const&, String const&)> LeafPairCallback;
+  typedef function<bool(Leaf const&)> AbortableLeafCallback;
+  typedef function<bool(ImageOperation const&, String const&)> AbortableLeafPairCallback;
+
+  struct Cell;
+  typedef std::shared_ptr<Cell> Branch;
+  typedef std::shared_ptr<Cell const> ConstBranch;
+  typedef List<ConstBranch> Branches;
+
+
+  struct Cell {
+    Variant<Leaf, Branches> value;
+
+    Cell();
+    Cell(Leaf&& leaf);
+    Cell(Branches&& branches);
+    Cell(const Leaf& leaf);
+    Cell(const Branches& branches);
+
+    void buildString(String& string) const;
+    void forEach(LeafCallback& callback) const;
+    bool forEachAbortable(AbortableLeafCallback& callback) const;
+  };
+
+
+  NestedDirectives();
+  NestedDirectives(String const& directives);
+  NestedDirectives(String&& directives);
+
+  void parseDirectivesIntoLeaf(String const& directives);
+
+  bool empty() const;
+  void append(const NestedDirectives& other);
+
+  const ConstBranch& branch() const;
+
+  String toString() const;
+  void addToString(String& string) const;
+
+  void forEach(LeafCallback callback) const;
+  void forEachPair(LeafPairCallback callback) const;
+  bool forEachAbortable(AbortableLeafCallback callback) const;
+  bool forEachPairAbortable(AbortableLeafPairCallback callback) const;
+
+  Image apply(Image& image) const;
+private:
+  void buildString(String& string, const Cell& cell) const;
+  Branches& convertToBranches();
+
+  Branch m_root;
+};
+
+typedef NestedDirectives ImageDirectives;
+
+}
+
+#endif

source/game/CMakeLists.txt

@@ -38,7 +38,6 @@ SET (star_game_HEADERS
     StarDamageManager.hpp
     StarDamageTypes.hpp
     StarDanceDatabase.hpp
-    StarDirectives.hpp
     StarDrawable.hpp
     StarDungeonGenerator.hpp
     StarDungeonImagePart.hpp
@@ -297,7 +296,6 @@ SET (star_game_SOURCES
     StarDamageManager.cpp
     StarDamageTypes.cpp
     StarDanceDatabase.cpp
-    StarDirectives.cpp
     StarDrawable.cpp
     StarDungeonGenerator.cpp
     StarDungeonImagePart.cpp

source/game/StarDirectives.cpp

@@ -1,51 +0,0 @@
-#include "StarImage.hpp"
-#include "StarImageProcessing.hpp"
-#include "StarDirectives.hpp"
-
-namespace Star {
-
-NestedDirectives::NestedDirectives() {}
-NestedDirectives::NestedDirectives(String const& string) : m_root{ Leaf{ parseImageOperations(string), string} } {}
-
-void NestedDirectives::addBranch(const Branch& newBranch) {
-  convertToBranches();
-
-  m_root.value.get<Branches>().emplace_back(newBranch);
-}
-
-String NestedDirectives::toString() const {
-  String string;
-  buildString(string, m_root);
-  return string;
-}
-
-void NestedDirectives::forEach() const {
-
-}
-
-Image NestedDirectives::apply(Image& image) const {
-  Image current = image;
-
-  return current;
-}
-
-void NestedDirectives::buildString(String& string, const Cell& cell) const {
-  if (auto leaf = cell.value.ptr<Leaf>())
-    string += leaf->string;
-  else {
-    for (auto& branch : cell.value.get<Branches>())
-      buildString(string, *branch);
-  }
-}
-
-void NestedDirectives::convertToBranches() {
-  if (m_root.value.is<Branches>())
-    return;
-
-  Leaf& leaf = m_root.value.get<Leaf>();
-  Branches newBranches;
-  newBranches.emplace_back(std::make_shared<Cell const>(move(leaf)));
-  m_root.value = move(newBranches);
-}
-
-}

source/game/StarDirectives.hpp

@@ -1,50 +0,0 @@
-#ifndef STAR_DIRECTIVES_HPP
-#define STAR_DIRECTIVES_HPP
-
-#include "StarImageProcessing.hpp"
-
-namespace Star {
-
-STAR_CLASS(NestedDirectives);
-
-// Attempt at reducing memory allocation and per-frame string parsing for extremely long directives
-class NestedDirectives {
-public:
-  struct Leaf {
-    List<ImageOperation> operations;
-    String string;
-  };
-
-  struct Cell;
-  typedef std::shared_ptr<Cell const> Branch;
-  typedef List<Branch> Branches;
-
-  struct Cell {
-    Variant<Leaf, Branches> value;
-
-    Cell() : value(Leaf()) {};
-    Cell(Leaf&& leaf) : value(move(leaf)) {};
-    Cell(Branches&& branches) : value(move(branches)) {};
-    Cell(const Leaf& leaf) : value(leaf) {};
-    Cell(const Branches& branches) : value(branches) {};
-  };
-
-
-  NestedDirectives();
-  NestedDirectives(String const& string);
-
-  void addBranch(const Branch& newBranch);
-  const Branch& branch() const;
-  String toString() const;
-  void forEach() const;
-  Image apply(Image& image) const;
-private:
-  void buildString(String& string, const Cell& cell) const;
-  void convertToBranches();
-
-  Cell m_root;
-};
-
-}
-
-#endif

source/game/StarImageMetadataDatabase.cpp

@@ -119,22 +119,20 @@ RectU ImageMetadataDatabase::nonEmptyRegion(String const& path) const {
 
 String ImageMetadataDatabase::filterProcessing(String const& path) {
   AssetPath components = AssetPath::split(path);
+  auto directives = move(components.directives);
+  String joined = AssetPath::join(components);
 
-  components.directives.filter([](String const& directive) {
+  directives.forEachPair([&](ImageOperation const& operation, String const& string) {
-      ImageOperation operation;
+    if (!(operation.is<HueShiftImageOperation>()       ||
-      try {
+      operation.is<SaturationShiftImageOperation>()    ||
-        operation = imageOperationFromString(directive);
+      operation.is<BrightnessMultiplyImageOperation>() ||
-      } catch (StarException const&) {
+      operation.is<FadeToColorImageOperation>()        ||
-        return true;
+      operation.is<ScanLinesImageOperation>()          ||
-      }
+      operation.is<SetColorImageOperation>())) {
-
+      joined += "?";
-      return !(operation.is<HueShiftImageOperation>() ||
+      joined += string;
-          operation.is<SaturationShiftImageOperation>() ||
+    }
-          operation.is<BrightnessMultiplyImageOperation>() ||
+  });
-          operation.is<FadeToColorImageOperation>() ||
-          operation.is<ScanLinesImageOperation>() ||
-          operation.is<SetColorImageOperation>());
-    });
 
   return AssetPath::join(components);
 }
@@ -231,19 +229,18 @@ Vec2U ImageMetadataDatabase::calculateImageSize(String const& path) const {
 
   OperationSizeAdjust osa(imageSize);
 
-  for (auto const& directive : components.directives) {
+  bool complete = components.directives.forEachAbortable([&](auto const& leaf) -> bool {
-    ImageOperation operation;
+    for (const ImageOperation& operation : leaf.operations) {
-    try {
+      operation.call(osa);
-      operation = imageOperationFromString(directive);
+      if (osa.hasError())
-    } catch (StarException const&) {
+        return false;
-      return fallback();
+      else
+        return true;
     }
+  });
 
-    operation.call(osa);
+  if (!complete)
-    if (osa.hasError) {
+    return fallback();
-      return fallback();
-    }
-  }
 
   return imageSize;
 }