docs: add DAP support doc

Signed-off-by: azerr <azerr@redhat.com>

docs/LSPSupport.md

@@ -1,6 +1,7 @@
 # LSP support
 
-The current implementation of `LSP4IJ` does not yet fully adhere to the LSP (Language Server Protocol) specification. This section provides an overview of the supported LSP features for IntelliJ:
+The current implementation of `LSP4IJ` does not yet fully adhere to the [LSP (Language Server Protocol) specification](https://microsoft.github.io/language-server-protocol/). 
+This section provides an overview of the supported LSP features for IntelliJ:
 
 ## Base support
 

docs/dap/DAP.md

@@ -1,7 +1,9 @@
 # Debug Adapter Protocol
 
-LSP4IJ provides [Debug Adapter Protocol](https://microsoft.github.io/debug-adapter-protocol/) support
-with the `Debug Adapter Protocol` run/debug configuration type:
+LSP4IJ provides [Debug Adapter Protocol](https://microsoft.github.io/debug-adapter-protocol/) support. 
+You can read [the DAP Support overview](./DAPSupport.md), describing which DAP features are implemented, and how.
+
+The DAP support is available with the `Debug Adapter Protocol` run/debug configuration type:
 
 ![DAP Configuration Type](./images/DAP_config_type.png)
 

docs/dap/DAPSupport.md

@@ -0,0 +1,80 @@
+# DAP support
+
+The current implementation of `LSP4IJ` does not yet fully adhere to the [DAP (Debug Adapter Protocol) specification](https://microsoft.github.io/debug-adapter-protocol//specification.html).
+This section provides an overview of the supported DAP features for IntelliJ:
+
+## Events
+
+Current state of [Events](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events) support:
+
+* ❌ [Breakpoint](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Breakpoint).
+* ❌ [Capabilities](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Capabilities).
+* ❌ [Continued](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Continued).
+* ❌ [Exited](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Exited).
+* ✅ [Initialized](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Initialized).
+* ❌ [Invalidated](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Invalidated).
+* ❌ [LoadedSource](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_LoadedSource).
+* ❌ [Memory](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Memory).
+* ❌ [Module](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Module).
+* ✅ [Output](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Output).
+* ❌ [Process](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Process).
+* ❌ [ProgressEnd](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_ProgressEnd).
+* ❌ [ProgressStart](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_ProgressStart).
+* ❌ [ProgressUpdate](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_ProgressUpdate).
+* ✅ [Stopped](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Stopped).
+* ✅ [Terminated](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Terminated).
+* ❌ [Thread](https://microsoft.github.io/debug-adapter-protocol//specification.html#Events_Thread).
+
+## Requests
+
+Current state of [Requests](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests) support:
+
+* ✅ [Attach](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Attach).
+* ❌ [BreakpointLocations](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_BreakpointLocations).
+* ✅ [Completions](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Completions).
+* ✅ [ConfigurationDone](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_ConfigurationDone).
+* ✅ [Continue](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Continue).
+* ❌ [DataBreakpointInfo](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_DataBreakpointInfo).
+* ❌ [Disassemble](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Disassemble). 
+* ✅ [Disconnect](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Disconnect).
+* ✅ [Evaluate](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Evaluate).
+* ❌ [ExceptionInfo](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_ExceptionInfo).
+* ❌ [Goto](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Goto).
+* ❌ [GotoTargets](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_GotoTargets).
+* ✅ [Initialize](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Initialize).
+* ✅ [Launch](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Launch). 
+* ❌ [LoadedSources](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_LoadedSources). 
+* ❌ [Locations](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Locations).
+* ❌ [Modules](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Modules).
+* ✅ [Next](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Next).
+* ❌ [Pause](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Pause).
+* ❌ [ReadMemory](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_ReadMemory).
+* ❌ [Restart](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Restart).
+* ❌ [RestartFrame](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_RestartFrame).
+* ❌ [ReverseContinue](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_ReverseContinue).
+* ✅ [Scopes](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Scopes).
+* ✅ [SetBreakpoints](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_SetBreakpoints).
+* ❌ [SetDataBreakpoints](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_SetDataBreakpoints).
+* ❌ [SetExceptionBreakpoints](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_SetExceptionBreakpoints).
+* ❌ [SetExpression](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_SetExpression).
+* ❌ [SetFunctionBreakpoints](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_SetFunctionBreakpoints).
+* ❌ [SetInstructionBreakpoints](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_SetInstructionBreakpoints).
+* ✅ [SetVariable](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_SetVariable).
+* ❌ [Source](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Source).
+* ✅ [StackTrace](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_StackTrace).
+* ❌ [StepBack](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_StepBack).
+* ✅ [StepIn](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_StepIn).
+* ❌ [StepInTargets](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_StepInTargets).
+* ✅ [StepOut](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_StepOut).
+* ✅ [Terminate](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Terminate).
+* ❌ [TerminateThreads](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_TerminateThreads).
+* ✅ [Threads](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Threads).
+* ✅ [Variables](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Variables).
+* ❌ [WriteMemory](https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_WriteMemory).
+
+## Reverse Requests
+
+Current state of [Reverse Requests](https://microsoft.github.io/debug-adapter-protocol//specification.html#Reverse_Requests) support:
+
+* ❌ [RunInTerminal](https://microsoft.github.io/debug-adapter-protocol//specification.html#Reverse_Requests_RunInTerminal).
+* ✅ [StartDebugging](https://microsoft.github.io/debug-adapter-protocol//specification.html#Reverse_Requests_StartDebugging).