Requirements

Functional Requirements

ID	Title	Status	Refinement	Satisfy	Test
req_demo_00001	SVG Link Identification	implemented	req_demo_00002; req_demo_00003	ftr_demo_00001	tsc_int_00001
req_demo_00002	Standard Sphinx Reference Resolution	implemented		ftr_demo_00002	tsc_int_00001
req_demo_00003	Sphinx-Needs Reference Resolution	implemented		ftr_demo_00003	tsc_int_00003
req_demo_00004	SVG File Modification	implemented		ftr_demo_00001	tsc_int_00001, tsc_int_00003
req_demo_00005	SVG Output Preservation	implemented		ftr_demo_00001	tsc_int_00001
req_demo_00006	Build Process Compatibility	implemented		ftr_demo_00001	tsc_int_00001
req_demo_00007	Performance Efficiency	open	req_demo_00008	ftr_demo_00001
req_demo_00008	Scalability for Multiple SVGs	open		ftr_demo_00001
req_demo_00009	Informative Logging	implemented	req_demo_00010	ftr_demo_00004; ftr_demo_00005	tsc_int_00002, tsc_int_00004
req_demo_00010	Configurable Verbosity Level	implemented		ftr_demo_00004	tsc_int_00004

Requirement: SVG Link Identification req_demo_00001

status: implemented type_ext: Functional reasoning: Core capability for link resolution. test: tsc_int_00001 acceptance: The extension successfully identifies `xlink:href` attributes containing Sphinx reference patterns in SVG files. refines: req_demo_00002, req_demo_00003 satisfies: ftr_demo_00001 satisfied by: spc_demo_00001 elaborates: usc_demo_00001

The system shall parse SVG files to accurately identify all <a> elements and extract the values of their xlink:href attributes.

Requirement: Standard Sphinx Reference Resolution req_demo_00002

status: implemented type_ext: Functional reasoning: Direct support for core Sphinx linking. test: tsc_int_00001 acceptance: Resolved Sphinx references generate valid URIs. refined by: req_demo_00001 satisfies: ftr_demo_00002 satisfied by: spc_demo_00002

The system shall resolve standard Sphinx cross-references (e.g., :ref:`target`, :doc:`target`) found in xlink:href attributes to their corresponding relative or absolute HTML URIs within the Sphinx build output.

Requirement: Sphinx-Needs Reference Resolution req_demo_00003

status: implemented type_ext: Functional reasoning: Integration with Sphinx-Needs for traceability. test: tsc_int_00003 acceptance: Resolved Sphinx-Needs references generate valid URIs. refined by: req_demo_00001 satisfies: ftr_demo_00003 satisfied by: spc_demo_00003 elaborates: usc_demo_00002

The system shall resolve Sphinx-Needs references (e.g., :need:`MY_NEED_ID`) found in xlink:href attributes to their corresponding HTML URIs based on the needs.json output, if needs_build_json is enabled.

Requirement: SVG File Modification req_demo_00004

status: implemented type_ext: Functional reasoning: Essential for making links clickable. test: tsc_int_00001, tsc_int_00003 acceptance: Modified SVG files contain the correct, updated `xlink:href` values. satisfies: ftr_demo_00001 satisfied by: spc_demo_00004 verified by req: tsc_demo_00002

The system shall modify the xlink:href attributes within the SVG files by replacing the original Sphinx or Sphinx-Needs reference patterns with the resolved URIs.

Requirement: SVG Output Preservation req_demo_00005

status: implemented type_ext: Functional reasoning: Ensures valid SVG output. test: tsc_int_00001 acceptance: The written SVG files are well-formed and display correctly. satisfies: ftr_demo_00001

The system shall write the modified SVG content back to the original file path, ensuring the output remains a valid and well-formed SVG.

Nonfunctional Requirements

ID	Title	Status	Refinement	Satisfy	Test
req_demo_00001	SVG Link Identification	implemented	req_demo_00002; req_demo_00003	ftr_demo_00001	tsc_int_00001
req_demo_00002	Standard Sphinx Reference Resolution	implemented		ftr_demo_00002	tsc_int_00001
req_demo_00003	Sphinx-Needs Reference Resolution	implemented		ftr_demo_00003	tsc_int_00003
req_demo_00004	SVG File Modification	implemented		ftr_demo_00001	tsc_int_00001, tsc_int_00003
req_demo_00005	SVG Output Preservation	implemented		ftr_demo_00001	tsc_int_00001
req_demo_00006	Build Process Compatibility	implemented		ftr_demo_00001	tsc_int_00001
req_demo_00007	Performance Efficiency	open	req_demo_00008	ftr_demo_00001
req_demo_00008	Scalability for Multiple SVGs	open		ftr_demo_00001
req_demo_00009	Informative Logging	implemented	req_demo_00010	ftr_demo_00004; ftr_demo_00005	tsc_int_00002, tsc_int_00004
req_demo_00010	Configurable Verbosity Level	implemented		ftr_demo_00004	tsc_int_00004

Requirement: Build Process Compatibility req_demo_00006

status: implemented type_ext: Nonfunctional reasoning: Ensures smooth integration into Sphinx. test: tsc_int_00001 acceptance: The extension integrates without causing Sphinx build failures. satisfies: ftr_demo_00001

The extension shall seamlessly integrate into the standard Sphinx build process and execute its logic during the build-finished event without introducing errors that halt the build.

Requirement: Performance Efficiency req_demo_00007

status: open type_ext: Nonfunctional reasoning: Important for large documentation sets. acceptance: Processing time for SVGs is minimal, not significantly impacting build times. refines: req_demo_00008 satisfies: ftr_demo_00001

The SVG parsing and modification process shall be optimized to ensure minimal impact on the overall Sphinx build time, particularly for projects with a large number of SVG diagrams.

Requirement: Scalability for Multiple SVGs req_demo_00008

status: open type_ext: Nonfunctional reasoning: Ensures performance with many diagrams. acceptance: The extension handles 100+ SVG files without excessive memory or time consumption. refined by: req_demo_00007 satisfies: ftr_demo_00001

The system shall efficiently handle the processing of a large number of SVG files (e.g., hundreds or thousands) within a single Sphinx build, without encountering memory exhaustion or excessively long processing times.

Requirement: Informative Logging req_demo_00009

status: implemented type_ext: Nonfunctional reasoning: Aids debugging and user understanding. test: tsc_int_00002, tsc_int_00004 acceptance: Log messages are clear and accurate. refines: req_demo_00010 satisfies: ftr_demo_00004, ftr_demo_00005

The system shall provide clear and informative log messages for successful reference resolutions and warnings for unresolved references, to aid users in understanding the extension’s operations and troubleshooting.

Requirement: Configurable Verbosity Level req_demo_00010

status: implemented type_ext: Nonfunctional reasoning: User control over logging detail. test: tsc_int_00004 acceptance: Verbose logging can be toggled via `conf.py`. refined by: req_demo_00009 satisfies: ftr_demo_00004 satisfied by: spc_demo_00005 verified by req: tsc_demo_00004 elaborates: usc_demo_00003

The system shall allow users to configure the verbosity level of the extension’s logging output via a Sphinx configuration option in conf.py.