docs: Roadmap

README.md

@@ -20,42 +20,9 @@ The option of having pre-compiled binaries is a workaround, but we don't like to
 keep third-party binary artifacts in source code,
 (see https://github.com/doorstop-dev/doorstop/pull/431#issuecomment-549237579).
 
-## Goals
-
-The first goal is to make FileCheck.py pass on Mull's current integration
-tests suite which uses only a very limited subset of FileCheck's features which
-are as follows:
-
-- Commands (both substring and regex matching):
-  - [x] `CHECK`
-  - [x] `CHECK-NEXT`
-  - [x] `CHECK-NOT`
-  - [x] `CHECK-EMPTY`
-
-- Options:
-  - [x] `--strict-whitespace`
-  - [x] `--match-full-lines`
-  - [x] `--check-prefix`
-
-When this is done, it feels like a good idea to implement full FileCheck's
-contract and be 100% compatible with the C++ version.
-
-There is a file in this repository: [FileCheck.pdf](FileCheck.pdf) which has
-some rough implementation coverage: green color means something is implemented,
-yellow color means that the text is not relevant to implementation, no
-highlighting means "still to be implemented".
-
-## Notes on implementation
-
-The implementation is done against the latest
-[FileCheck - Flexible pattern matching file verifier](https://llvm.org/docs/CommandGuide/FileCheck.html)
-document. The plan is to skip looking into the LLVM's implementation of
-FileCheck, unless some very advanced implementation details are encountered.
-
-It a nice programming exercise of implementing something from a spec but we also
-want to make FileCheck.py to conform to the same contract this is why
-FileCheck.py is tested using LIT and the LLVM's FileCheck:
-
-First, the LLVM FileCheck is run against a LIT/FileCheck test suite, then
-FileCheck.py is run on the same tests to make sure that it has the same behavior
-as the LLVM FileCheck.
+## Documentation
+
+Documentation is hosted on Read the Docs: 
+
+[FileCheck.py documentation](https://filecheck.readthedocs.io/en/latest/index.html).
+

docs/01-what-is-filecheck.rst

@@ -27,6 +27,9 @@ possible to keep third-party binary artifacts in source code
 (see
 https://github.com/doorstop-dev/doorstop/pull/431#issuecomment-549237579).
 
+**Note:** FileCheck.py is not intended to be a replacement for LLVM's FileCheck
+in any way. See :doc:`07-roadmap`.
+
 What's next?
 ------------
 

docs/07-roadmap.rst

@@ -1,4 +1,50 @@
 Roadmap
--------
+=======
 
-...
+As described in :doc:`01-what-is-filecheck`, FileCheck.py is only a Python port
+for LLVM's FileCheck. It is not intended to be a replacement for LLVM's
+FileCheck.
+
+FileCheck.py is being tested against Mull mutation testing system. The first
+goal is to make FileCheck.py pass on Mull's current integration tests suite that
+uses only a very limited subset of FileCheck's features which are as follows:
+
+- Commands (both substring and regex matching):
+
+  - ``CHECK``
+  - ``CHECK-NEXT``
+  - ``CHECK-NOT``
+  - ``CHECK-EMPTY``
+
+- Options:
+
+  - ``--strict-whitespace``
+  - ``--match-full-lines``
+  - ``--check-prefix``
+
+When the above features are implemented and considered stable, it might be a
+good idea to implement full FileCheck's contract and be 100% compatible with the
+C++ version.
+
+There is a file in FileCheck.py's repository:
+`FileCheck.pdf <https://github.com/stanislaw/FileCheck.py/blob/master/FileCheck.pdf>`_
+which has some rough implementation coverage: green color means something is
+implemented, yellow color means that the text is not relevant to implementation,
+no highlighting means "still to be implemented".
+
+Notes on implementation
+-----------------------
+
+The implementation is done against the latest
+`FileCheck - Flexible pattern matching file verifier <https://llvm.org/docs/CommandGuide/FileCheck.html>`_
+document. The plan is to skip looking into the LLVM's implementation of
+FileCheck, unless some very advanced implementation details are encountered.
+
+It a nice programming exercise of implementing something from a spec but we also
+want to make FileCheck.py conform to the same contract this is why FileCheck.py
+is tested using LIT and LLVM's FileCheck:
+
+- First, the LLVM FileCheck is run against a FileCheck.py test suite based on
+  LIT/FileCheck.
+- Second, FileCheck.py is run on the same tests to make sure that it has the
+  same behavior as the LLVM FileCheck.