📚 Add traceability to documentation

docs/source/basics/quickstart.rst

@@ -27,7 +27,6 @@ Sphinx Config
    :caption: src_trace.toml
    :language: toml
 
-
 One-line comment
 ----------------
 

docs/source/components/discover.rst

@@ -6,7 +6,6 @@ Source Discover
 SourceDiscover is one of the modules provided in ``Codelinks``. It discovers the source files from the given directory.
 It provides users CLI and API to discover the source files.
 
-
 Usage Examples
 --------------
 

docs/source/components/features.rst

@@ -0,0 +1,298 @@
+Features
+========
+
+.. dropdown:: 🔍 Features
+
+   .. needtable::
+      :filter: type == "feature"
+      :columns: id, title, si as "SI", parent_needs_back as "Errors"
+
+.. feature:: Define new traceability objects in source code
+   :id: FE_DEF
+
+   Create new Sphinx-Needs directly from a single comment line in your source code.
+   This feature enables developers to maintain traceability information right at the point
+   of implementation, ensuring that requirements, specifications, and code remain synchronized.
+
+   By embedding traceability markers in comments, you can:
+
+   * Define requirements, specifications, or test cases directly in source files
+   * Automatically generate documentation from code comments
+   * Maintain bidirectional links between documentation and implementation
+   * Track coverage of requirements by implementation
+
+   .. fault:: Traceability objects are not detected in supported languages
+      :id: FAULT_1
+
+   .. fault:: Sphinx-codelinks halucinates traceability objects
+      :id: FAULT_2
+
+.. feature:: Discover Source Code Files
+   :id: FE_DISCOVERY
+
+   Discover source code files in a specified root directory.
+   The root directory shall be configurable.
+
+.. feature:: C Language Support
+   :id: FE_C_SUPPORT
+
+   Support for defining traceability objects in C source code.
+
+   The C language parser leverages tree-sitter to accurately identify and extract
+   comments from C source files, including both single-line (``//``) and multi-line
+   (``/* */``) comment styles. This ensures that traceability markers are correctly
+   associated with the appropriate code structures such as functions, structs, and
+   global definitions.
+
+   Key capabilities:
+
+   * Detection of inline and block comments
+   * Association of comments with function definitions
+   * Support for standard C comment conventions
+   * Accurate scope detection for nested structures
+
+   .. fault:: Traceability objects are not detected in C language
+      :id: FAULT_C_1
+
+   .. fault:: Sphinx-codelinks halucinates traceability objects in C
+      :id: FAULT_C_2
+
+.. feature:: C++ Language Support
+   :id: FE_CPP
+
+   Support for defining traceability objects in C++ source code.
+
+   Building upon C language support, the C++ parser handles the full complexity of modern
+   C++ syntax including classes, namespaces, templates, and advanced features. The tree-sitter
+   based parser ensures accurate comment extraction and scope detection across various C++
+   constructs.
+
+   Enhanced features for C++:
+
+   * Class and namespace scope detection
+   * Support for C++ style comments (``//``) and C style comments (``/* */``)
+   * Template and method declaration handling
+   * Accurate association with member functions and constructors
+   * Support for modern C++ features (C++11/14/17/20)
+
+   .. fault:: Traceability objects are not detected in C++ language
+      :id: FAULT_CPP_1
+
+   .. fault:: Sphinx-codelinks halucinates traceability objects in C++
+      :id: FAULT_CPP_2
+
+.. feature:: Python Language Support
+   :id: FE_PY
+
+   Support for defining traceability objects in Python source code.
+
+   The Python language parser provides comprehensive support for Python's unique comment
+   and docstring conventions. It can extract traceability markers from both standard
+   comments (``#``) and docstrings (triple-quoted strings), making it ideal for Python's
+   documentation-driven development practices.
+
+   Python-specific capabilities:
+
+   * Hash-style comment (``#``) detection
+   * Docstring extraction from modules, classes, and functions
+   * Proper handling of multi-line comments and docstrings
+   * Scope detection for functions, classes, and methods
+   * Support for nested class and function definitions
+   * Integration with Python's natural documentation patterns
+
+   .. fault:: Traceability objects are not detected in Python language
+      :id: FAULT_PY_1
+
+   .. fault:: Sphinx-codelinks halucinates traceability objects in Python
+      :id: FAULT_PY_2
+
+.. feature:: YAML Language Support
+   :id: FE_YAML
+
+   Support for defining traceability objects in YAML configuration files.
+
+   The YAML language parser provides comprehensive support for YAML's structure
+   and comment conventions. It can extract traceability markers from YAML comments
+   (``#``) and properly associate them with YAML structures including key-value pairs,
+   list items, and nested configurations, making it ideal for documenting configuration
+   files, CI/CD pipelines, and infrastructure definitions.
+
+   YAML-specific capabilities:
+
+   * Hash-style comment (``#``) detection
+   * Inline comment support with proper structure association
+   * Block comment detection and association
+   * Scope detection for block mapping pairs and sequence items
+   * Support for nested YAML structures
+   * Document structure handling with ``---`` separators
+   * Accurate association of inline comments with their corresponding structures
+   * Flow and block mapping/sequence support
+
+   .. fault:: Traceability objects are not detected in YAML language
+      :id: FAULT_YAML_1
+
+   .. fault:: Sphinx-codelinks halucinates traceability objects in YAML
+      :id: FAULT_YAML_2
+
+.. feature:: Customized comment styles
+   :id: FE_CMT
+
+   Support for different customized comment styles in source code.
+   The comment structure can be defined in the configuration file.
+
+   This feature provides flexibility to adapt Sphinx-Codelinks to your project's
+   existing coding standards and conventions. Define custom markers, prefixes, and
+   delimiters that match your team's documentation practices without requiring code
+   changes.
+
+   Configuration options include:
+
+   * Custom marker syntax (e.g., ``@req``, ``#TODO``, ``//!``)
+   * Configurable comment prefixes and delimiters
+   * Support for language-specific comment conventions
+   * Flexible pattern matching for traceability markers
+   * Per-project customization via configuration files
+
+   .. fault:: Customized comment styles are not detected in supported languages
+      :id: FAULT_CMT
+
+.. feature:: Link code to existing need items
+   :id: FE_LNK
+
+   Link code to existing need items without creating new ones, perfect for tracing
+   implementations to requirements.
+
+   This feature enables you to establish connections between your source code and
+   existing documentation or requirements defined elsewhere in your Sphinx-Needs
+   documentation. Instead of creating duplicate need objects, you can simply reference
+   existing ones, maintaining a clean and organized traceability structure.
+
+   Linking capabilities:
+
+   * Reference existing requirements, specifications, or test cases by ID
+   * Create bidirectional links between code and documentation
+   * Avoid duplication of traceability information
+   * Support for multiple links from a single code location
+   * Automatic validation of link targets
+   * Integration with Sphinx-Needs link visualization
+
+   .. fault:: Linking code to existing need items fails
+      :id: FAULT_LNK_1
+
+   .. fault:: Sphinx-codelinks links code to wrong need items
+      :id: FAULT_LNK_2
+
+.. feature:: Extract blocks of reStructuredText embedded within comments
+   :id: FE_RST_EXTRACTION
+
+   Extract blocks of reStructuredText embedded within comments, allowing you to
+   include rich documentation with associated metadata right next to your code.
+
+   This powerful feature enables you to write full reStructuredText content directly
+   in your source code comments, which will be extracted and processed as part of
+   your Sphinx documentation. This approach brings documentation closer to implementation,
+   making it easier to keep both synchronized.
+
+   reStructuredText extraction features:
+
+   * Full reStructuredText syntax support within comments
+   * Extraction of formatted documentation blocks
+   * Support for directives, roles, and inline markup
+   * Preservation of indentation and formatting
+   * Integration with Sphinx-Needs directives
+   * Markers for block start (``@rst``) and end (``@endrst``)
+   * Single-line and multi-line RST blocks
+
+   .. fault:: Extracting reStructuredText from comments fails
+      :id: FAULT_RST_EXTRACTION_1
+
+   .. fault:: Sphinx-codelinks extracts wrong reStructuredText blocks
+      :id: FAULT_RST_EXTRACTION_2
+
+   .. fault:: Extracted reStructuredText blocks are malformed
+      :id: FAULT_RST_EXTRACTION_3
+
+.. feature:: Analyze marked content via CLI interface
+   :id: FE_CLI_ANALYZE
+
+   It shall be possible to analyze marked content via the CLI interface.
+
+   The command-line interface provides powerful tools for analyzing and reporting on
+   traceability markers in your codebase without requiring a full Sphinx build. This
+   enables quick validation, continuous integration checks, and standalone reporting.
+
+   CLI analysis capabilities:
+
+   * Scan source files for traceability markers
+   * Generate reports on found markers and their metadata
+   * Validate marker syntax and structure
+   * Export analysis results in various formats (JSON, CSV)
+   * Integration with CI/CD pipelines
+   * Fast iteration during development
+   * Batch processing of multiple files or directories
+
+   .. fault:: CLI integration fails silently
+      :id: FAULT_CLI_ANALYZE_1
+
+   .. fault:: Sphinx-codelinks halucinates marked content
+      :id: FAULT_CLI_ANALYZE_2
+
+   .. fault:: Sphinx-codelinks misses marked content
+      :id: FAULT_CLI_ANALYZE_3
+
+.. feature:: Discover the filepaths a specified root directory via CLI interface
+   :id: FE_CLI_DISCOVER
+
+   It shall be possible to specify a root directory for the CLI interface.
+   All files in and below this directory shall be discovered.
+
+   The discovery feature provides intelligent file system traversal to identify all
+   relevant source files within a project structure. This enables bulk operations
+   and ensures comprehensive coverage of your codebase.
+
+   Discovery features:
+
+   * Recursive directory traversal from specified root
+   * File type filtering based on extensions
+   * Respect for ignore patterns (e.g., ``.gitignore``)
+   * Detection of binary vs. text files
+   * Configurable include/exclude patterns
+   * Support for multiple root directories
+   * Efficient handling of large codebases
+
+   .. fault:: Specifying a root directory fails
+      :id: FAULT_CLI_DISCOVER_1
+
+   .. fault:: Sphinx-codelinks discovers files outside the specified root directory
+      :id: FAULT_CLI_DISCOVER_2
+
+      Root directory setting is not respected or ignored
+
+.. feature:: Export marked content to other formats via CLI interface
+   :id: FE_CLI_WRITE
+
+   It shall be possible to export marked content to other formats via the CLI interface.
+
+   The export functionality enables transformation of extracted traceability data into
+   various output formats for use in external tools, reports, or downstream processing.
+   This makes Sphinx-Codelinks a versatile component in your documentation toolchain.
+
+   Export capabilities:
+
+   * JSON format for programmatic processing
+   * CSV format for spreadsheet analysis
+   * Sphinx-Needs compatible formats
+   * Custom format definitions via templates
+   * Batch export of multiple analyses
+   * Filtering and transformation options
+   * Integration with external reporting tools
+   * Support for incremental exports
+
+   .. fault:: Exporting marked content fails
+      :id: FAULT_CLI_WRITE_1
+
+   .. fault:: Sphinx-codelinks exports wrong content
+      :id: FAULT_CLI_WRITE_2
+
+   .. fault:: Exported content is malformed
+      :id: FAULT_CLI_WRITE_3

docs/source/components/oneline.rst

@@ -13,7 +13,6 @@ to simplify the effort required to create a need in source code.
 
 For more comprehensive examples and advanced configurations, see the `test cases <https://github.com/useblocks/sphinx-codelinks/tree/main/tests>`__.
 
-
 Start and End sequences
 -----------------------
 

docs/source/components/write.rst

@@ -34,16 +34,16 @@ The following RST file with :external+needs:ref:`needextend <needextend>` direct
 
 .. code-block:: rst
 
-    .. needextend:: NEED_001
-           :remote-url: https://github.com/useblocks/sphinx-codelinks/blob/951e40e7845f06d5cfc4ca20ebb984308fdaf985/tests/data/need_id_refs/dummy_1.cpp#L3
+   .. needextend:: NEED_001
+          :remote-url: https://github.com/useblocks/sphinx-codelinks/blob/951e40e7845f06d5cfc4ca20ebb984308fdaf985/tests/data/need_id_refs/dummy_1.cpp#L3
 
-    .. needextend:: NEED_002
-           :remote-url: https://github.com/useblocks/sphinx-codelinks/blob/951e40e7845f06d5cfc4ca20ebb984308fdaf985/tests/data/need_id_refs/dummy_1.cpp#L3
+   .. needextend:: NEED_002
+          :remote-url: https://github.com/useblocks/sphinx-codelinks/blob/951e40e7845f06d5cfc4ca20ebb984308fdaf985/tests/data/need_id_refs/dummy_1.cpp#L3
 
-    .. needextend:: NEED_003
-           :remote-url: https://github.com/useblocks/sphinx-codelinks/blob/951e40e7845f06d5cfc4ca20ebb984308fdaf985/tests/data/need_id_refs/dummy_1.cpp#L3
+   .. needextend:: NEED_003
+          :remote-url: https://github.com/useblocks/sphinx-codelinks/blob/951e40e7845f06d5cfc4ca20ebb984308fdaf985/tests/data/need_id_refs/dummy_1.cpp#L3
 
-    .. needextend:: NEED_004
-           :remote-url: https://github.com/useblocks/sphinx-codelinks/blob/951e40e7845f06d5cfc4ca20ebb984308fdaf985/tests/data/need_id_refs/dummy_1.cpp#L3
+   .. needextend:: NEED_004
+          :remote-url: https://github.com/useblocks/sphinx-codelinks/blob/951e40e7845f06d5cfc4ca20ebb984308fdaf985/tests/data/need_id_refs/dummy_1.cpp#L3
 
 More examples can be found in `test cases <https://github.com/useblocks/sphinx-codelinks/blob/main/tests/test_needextend_write.py>`__

docs/source/development/traceability.rst

@@ -0,0 +1,15 @@
+Traceability
+============
+
+Implementation
+--------------
+
+.. src-trace::
+   :project: sphinx_codelinks
+   :directory: sphinx_codelinks
+
+Testing
+-------
+
+.. src-trace::
+   :project: tests

docs/source/index.rst

@@ -66,6 +66,7 @@ Contents
    components/analyse
    components/discover
    components/write
+   components/features
 
 .. toctree::
    :maxdepth: 1
@@ -74,3 +75,4 @@ Contents
    development/roadmap
    development/change_log
    development/contributing
+   development/traceability