Directory of the source code.

+------------+            +------------+            +------------+
| Server     | <--------> | Client     | <--------> | UI         |
+------------+  Protocol  +------------+  Protocol  +------------+
| Session    |            | Platform   |
+------------+            +------------+
| Converter  |
+------------+
| Dictionary |
+------------+

Note: Platform is used for various components for platform specific requirements.

• android/
  • Android specific implementation.
  • Note: Mozc does not contain the client UI implementation for Android.
• unix/
  • Linux specific implementation.
• win32/
  • Windows specific implementation.
• mac/
  • macOS specific implementation.
• ios/
  • iOS specific implementation.
  • Note: Mozc does not officially support iOS build.

• build_tools/
  • Utilities used for build (e.g. code generation).
• bazel/
  • Build rules and tools for Bazel build.
• gyp/
  • Build rules and tools for GYP.
• protobuf/
  • Build rules and tools of GYP for Protocol Buffers.

• base/
  • Fundamental libraries for generic purposes.
• data/
  • Directory and subdirectories of data files.
• third_party/
  • Third party libraries (e.g. Abseil).
• testing/
  • Libraries for testing.
• usage_stats/
  • Libraries for usage statistics.
  • Note: Mozc does not use usage statistics.

• protocol/
  • Protocol definitions of function API (e.g. API between client and server).
• config/
  • Libraries to manage user configurations.
• request/
  • Libraries of request used for text conversion.

• client/
  • Libraries of client code.
  • Note: The main function of the client is in each platform directory.
• server/
  • Libraries of server code.
  • The main function is in this directory.
• ipc/
  • Libraries of IPC to communicate between client, server and other processes.

• session/
  • Libraries of state management between user interactions and text conversion.
• composer/
  • Libraries of text composing (e.g. Romaji-Hiragana conversion).
• transliteration/
  • Libraries of script type transliteration (e.g. half-width Katakana, full-width Ascii).

• engine/
  • Libraries to manage converter libraries.
• data_manager/
  • Libraries to manage converter data.
• converter/
  • Libraries of text conversion (e.g. Hiragana to Kanji exact match conversion).
• rewriter/
  • Libraries for additional conversions (e.g. date input, symbol input, zip code input).
• prediction/
  • Libraries of text prediction (e.g. Hiragana to Kanji prefix match conversion).

• dictionary/
  • Libraries of dictionary lookup (e.g. Hiragana key to possible words).
• storage/
  • Libraries of dictionary data storage (e.g. LOUDS, etc.).

• renderer/
  • UI application of candidate words.
• gui/
  • GUI applications for configurations.