Stop crash on window snap by preventing torn device resources state (#1768)

* Stop crash on window snap by preventing torn device resources state when quick on-the-fly resizing operations happen. #1572

(cherry picked from commit d8485079cd)

.clang-format

@@ -0,0 +1,93 @@
+
+AccessModifierOffset: -4
+AlignAfterOpenBracket: Align
+#AllowAllArgumentsOnNextLine: false
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+#AllowAllConstructorInitializersOnNextLine: false
+AlignEscapedNewlines: Left
+AlignOperands: true
+AlignTrailingComments: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortIfStatementsOnASingleLine: false
+#AllowShortLambdasOnASingleLine: Inline
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: Yes
+BinPackArguments: false
+BinPackParameters: false
+BraceWrapping:
+  AfterClass: true
+  AfterControlStatement: true
+  AfterEnum: true
+  AfterFunction: true
+  AfterNamespace: true
+  AfterObjCDeclaration: true
+  AfterStruct: true
+  AfterUnion: true
+  AfterExternBlock: false
+  BeforeCatch: true
+  BeforeElse: true
+  IndentBraces: false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Custom
+BreakBeforeTernaryOperators: false
+BreakConstructorInitializers: AfterColon
+BreakInheritanceList: AfterColon
+ColumnLimit: 0
+CommentPragmas: "suppress"
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: false
+DerivePointerAlignment: false
+FixNamespaceComments: false
+IncludeBlocks: Regroup
+IncludeCategories:
+    - Regex: '^.*(precomp|pch|stdafx)'
+      Priority: -1
+    - Regex: '^".*"'
+      Priority: 1
+    - Regex: '^<.*>'
+      Priority: 2
+    - Regex: '.*'
+      Priority: 3
+IndentCaseLabels: false
+IndentPPDirectives: None
+IndentWidth: 4
+IndentWrappedFunctionNames: false
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: "BEGIN_TEST_METHOD_PROPERTIES|BEGIN_MODULE|BEGIN_TEST_CLASS|BEGIN_TEST_METHOD"
+MacroBlockEnd: "END_TEST_METHOD_PROPERTIES|END_MODULE|END_TEST_CLASS|END_TEST_METHOD"
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: All
+PointerAlignment: Left
+ReflowComments: false
+SortIncludes: false
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+#SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: false
+SpacesInCStyleCastParentheses: false
+SpacesInContainerLiterals: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard: Cpp11
+TabWidth: 4
+UseTab: Never

.github/PULL_REQUEST_TEMPLATE.md

@@ -14,3 +14,6 @@
 
 <!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here -->
 ## Detailed Description of the Pull Request / Additional comments
+
+<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
+## Validation Steps Performed

.gitignore

@@ -263,6 +263,9 @@ build*.metadata
 
 # .razzlerc.cmd file - used by dev environment
 tools/.razzlerc.*
+# .PowershellModules - if one needs a powershell module dependency, one
+# can save it here. used by tools/OpenConsole.psm1
+.PowershellModules
 # message compiler output
 MSG*.bin
 /*.exe
@@ -275,3 +278,4 @@ MSG*.bin
 **/Unmerged/*
 profiles.json
 *.metaproj
+*.swp

NOTICE.md

@@ -0,0 +1,49 @@
+# NOTICES AND INFORMATION
+Do Not Translate or Localize
+
+This software incorporates material from third parties. Microsoft makes certain
+open source code available at http://3rdpartysource.microsoft.com, or you may
+send a check or money order for US $5.00, including the product name, the open
+source component name, and version number, to:
+
+```
+Source Code Compliance Team
+Microsoft Corporation
+One Microsoft Way
+Redmond, WA 98052
+USA
+```
+
+Notwithstanding any other terms, you may reverse engineer this software to the
+extent required to debug changes to any libraries licensed under the GNU Lesser
+General Public License.
+
+## jsoncpp
+
+**Source**: https://github.com/open-source-parsers/jsoncpp
+
+### License
+
+```
+Copyright (c) 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use, copy,
+modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+```

OpenConsole.sln

@@ -149,6 +149,9 @@ EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "RendererVt", "src\renderer\vt\lib\vt.vcxproj", "{990F2657-8580-4828-943F-5DD657D11842}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "VtPipeTerm", "src\tools\vtpipeterm\VtPipeTerm.vcxproj", "{814DBDDE-894E-4327-A6E1-740504850098}"
+	ProjectSection(ProjectDependencies) = postProject
+		{9CBD7DFA-1754-4A9D-93D7-857A9D17CB1B} = {9CBD7DFA-1754-4A9D-93D7-857A9D17CB1B}
+	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ConEchoKey", "src\tools\echokey\ConEchoKey.vcxproj", "{814CBEEE-894E-4327-A6E1-740504850098}"
 EndProject

README.md

@@ -79,19 +79,6 @@ Secondly, try pressing <kbd>Ctrl</kbd> + <kbd>T</kbd>. The tabs are hidden when
 
 # Getting Started
 
-## Prerequisites
-
-* You must be running Windows 1903 (build >= 10.0.18362.0) or above in order to run Windows Terminal
-* You must have the [1903 SDK](https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk) (build 10.0.18362.0) installed
-* You must have at least [VS 2017](https://visualstudio.microsoft.com/downloads/) installed.
-* You must install the following Workloads via the VS Installer. If you're running VS 2019, opening the solution will [prompt you to install missing components automatically](https://devblogs.microsoft.com/setup/configure-visual-studio-across-your-organization-with-vsconfig/).
-  - Desktop Development with C++
-  - Universal Windows Platform Development
-    - Also install the following Individual Component:
-      - C++ (v141) Universal Windows Platform Tools
-
-* You must also [enable Developer Mode in the Windows Settings app](https://docs.microsoft.com/en-us/windows/uwp/get-started/enable-your-device-for-development) to locally install and run the Terminal app.
-
 ## Debugging
 
 * To debug in VS, right click on CascadiaPackage (from VS Solution Explorer) and go to properties, in the Debug menu, change "Application process" and "Background task process" to "Native Only"
@@ -100,7 +87,7 @@ Secondly, try pressing <kbd>Ctrl</kbd> + <kbd>T</kbd>. The tabs are hidden when
 
 We are excited to work alongside you, our amazing community, to build and enhance Windows Terminal\!
 
-We ask that **before you start work on a feature that you would like to contribute, <span class="underline">please file an issue</span> describing your proposed change**: We will be happy to work with you to figure out the best approach, provide guidance and mentorship throughout feature development, and help avoid any wasted or duplicate effort.
+We ask that **before you start work on a feature that you would like to contribute**, please read our [Contributor's Guide](https://github.com/microsoft/terminal/blob/master/doc/contributing.md). We will be happy to work with you to figure out the best approach, provide guidance and mentorship throughout feature development, and help avoid any wasted or duplicate effort.
 
 > 👉 **Remember\!** Your contributions may be incorporated into future versions of Windows\! Because of this, all pull requests will be subject to the same level of scrutiny for quality, coding standards, performance, globalization, accessibility, and compatibility as those of our internal contributors.
 
@@ -128,6 +115,20 @@ If you would like to ask a question that you feel doesn't warrant an issue (yet)
 
 # Developer Guidance
 
+## Build Prerequisites
+
+* You must be running Windows 1903 (build >= 10.0.18362.0) or above in order to run Windows Terminal
+* You must have the [1903 SDK](https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk) (build 10.0.18362.0) installed
+* You must have at least [VS 2017](https://visualstudio.microsoft.com/downloads/) installed.
+* You must install the following Workloads via the VS Installer. If you're running VS 2019, opening the solution will [prompt you to install missing components automatically](https://devblogs.microsoft.com/setup/configure-visual-studio-across-your-organization-with-vsconfig/).
+  - Desktop Development with C++
+  - Universal Windows Platform Development
+    - Also install the following Individual Component:
+      - C++ (v141) Universal Windows Platform Tools
+
+* You must also [enable Developer Mode in the Windows Settings app](https://docs.microsoft.com/en-us/windows/uwp/get-started/enable-your-device-for-development) to locally install and run the Terminal app.
+
+
 ## Building the Code
 
 This repository uses [git submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules) for some of its dependencies. To make sure submodules are restored or updated, be sure to run the following prior to building:

build/pipelines/ci.yml

@@ -34,3 +34,5 @@ jobs:
   - template: ./templates/build-console-ci.yml
     parameters:
       platform: ARM64
+
+  - template: ./templates/check-formatting.yml

build/pipelines/release.yml

@@ -35,4 +35,6 @@ jobs:
       platform: arm64
       additionalBuildArguments: /p:WindowsTerminalReleaseBuild=true
 
+  - template: ./templates/check-formatting.yml
+
   - template: ./templates/release-sign-and-bundle.yml

build/pipelines/templates/check-formatting.yml

@@ -0,0 +1,16 @@
+
+jobs:
+- job: CodeFormatCheck
+  displayName: Proper Code Formatting Check
+  pool: { vmImage: vs2017-win2016 }
+
+  steps:
+  - checkout: self
+    submodules: false
+    clean: true
+
+  - task: PowerShell@2
+    displayName: 'Code Formattting Check'
+    inputs:
+      targetType: filePath
+      filePath: '.\build\scripts\Invoke-FormattingCheck.ps1'

build/pipelines/templates/release-sign-and-bundle.yml

@@ -10,13 +10,15 @@ jobs:
     - Buildx64Release
     - Buildx86Release
     - Buildarm64Release
+    - CodeFormatCheck
   condition: |
     and
     (
       in(dependencies.Buildx64AuditMode.result, 'Succeeded', 'SucceededWithIssues', 'Skipped'),
       in(dependencies.Buildx64Release.result,   'Succeeded', 'SucceededWithIssues', 'Skipped'),
       in(dependencies.Buildx86Release.result,   'Succeeded', 'SucceededWithIssues', 'Skipped'),
-      in(dependencies.Buildarm64Release.result, 'Succeeded', 'SucceededWithIssues', 'Skipped')
+      in(dependencies.Buildarm64Release.result, 'Succeeded', 'SucceededWithIssues', 'Skipped'),
+      in(dependencies.CodeFormatCheck.result,   'Succeeded', 'SucceededWithIssues', 'Skipped')
     )
 
   variables:

build/scripts/Invoke-FormattingCheck.ps1

@@ -0,0 +1,14 @@
+
+#.SYNOPSIS
+# Checks for code formatting errors. Will throw exception if any are found.
+function Invoke-CheckBadCodeFormatting() {
+    Import-Module ./tools/OpenConsole.psm1
+    Invoke-CodeFormat
+    # returns a non-zero exit code if there are any diffs in the tracked files in the repo
+    git diff-index --quiet HEAD --
+    if ($lastExitCode -eq 1) {
+        throw "code formatting bad, run Invoke-CodeFormat on branch"
+    }
+}
+
+Invoke-CheckBadCodeFormatting

dep/Console/winconp.h

@@ -586,8 +586,6 @@ typedef struct _CONSOLE_STATE_INFO {
     COLORREF DefaultForeground;
     COLORREF DefaultBackground;
     BOOL TerminalScrolling;
-
-    LPWSTR VersionString;
     /* END V2 CONSOLE_STATE_INFO */
 
 } CONSOLE_STATE_INFO, *PCONSOLE_STATE_INFO;

dep/jsoncpp/README.md

@@ -0,0 +1,7 @@
+# jsoncpp
+
+[Amalgamated](https://github.com/open-source-parsers/jsoncpp/wiki/Amalgamated)
+from source commit
+[ddabf50](https://github.com/open-source-parsers/jsoncpp/commit/ddabf50f72cf369bf652a95c4d9fe31a1865a781),
+release 1.8.4.
+

dep/jsoncpp/json/json-forwards.h

@@ -0,0 +1,333 @@
+/// Json-cpp amalgamated forward header (http://jsoncpp.sourceforge.net/).
+/// It is intended to be used with #include "json/json-forwards.h"
+/// This header provides forward declaration for all JsonCpp types.
+
+// //////////////////////////////////////////////////////////////////////
+// Beginning of content of file: LICENSE
+// //////////////////////////////////////////////////////////////////////
+
+/*
+The JsonCpp library's source code, including accompanying documentation, 
+tests and demonstration applications, are licensed under the following
+conditions...
+
+Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all 
+jurisdictions which recognize such a disclaimer. In such jurisdictions, 
+this software is released into the Public Domain.
+
+In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
+2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
+The JsonCpp Authors, and is released under the terms of the MIT License (see below).
+
+In jurisdictions which recognize Public Domain property, the user of this 
+software may choose to accept it either as 1) Public Domain, 2) under the 
+conditions of the MIT License (see below), or 3) under the terms of dual 
+Public Domain/MIT License conditions described here, as they choose.
+
+The MIT License is about as close to Public Domain as a license can get, and is
+described in clear, concise terms at:
+
+   http://en.wikipedia.org/wiki/MIT_License
+   
+The full text of the MIT License follows:
+
+========================================================================
+Copyright (c) 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use, copy,
+modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+========================================================================
+(END LICENSE TEXT)
+
+The MIT license is compatible with both the GPL and commercial
+software, affording one all of the rights of Public Domain with the
+minor nuisance of being required to keep the above copyright notice
+and license text in the source code. Note also that by accepting the
+Public Domain "license" you can re-license your copy using whatever
+license you like.
+
+*/
+
+// //////////////////////////////////////////////////////////////////////
+// End of content of file: LICENSE
+// //////////////////////////////////////////////////////////////////////
+
+
+
+
+
+#ifndef JSON_FORWARD_AMALGAMATED_H_INCLUDED
+# define JSON_FORWARD_AMALGAMATED_H_INCLUDED
+/// If defined, indicates that the source file is amalgamated
+/// to prevent private header inclusion.
+#define JSON_IS_AMALGAMATION
+
+// //////////////////////////////////////////////////////////////////////
+// Beginning of content of file: include/json/config.h
+// //////////////////////////////////////////////////////////////////////
+
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef JSON_CONFIG_H_INCLUDED
+#define JSON_CONFIG_H_INCLUDED
+#include <stddef.h>
+#include <string> //typedef String
+#include <stdint.h> //typedef int64_t, uint64_t
+
+/// If defined, indicates that json library is embedded in CppTL library.
+//# define JSON_IN_CPPTL 1
+
+/// If defined, indicates that json may leverage CppTL library
+//#  define JSON_USE_CPPTL 1
+/// If defined, indicates that cpptl vector based map should be used instead of
+/// std::map
+/// as Value container.
+//#  define JSON_USE_CPPTL_SMALLMAP 1
+
+// If non-zero, the library uses exceptions to report bad input instead of C
+// assertion macros. The default is to use exceptions.
+#ifndef JSON_USE_EXCEPTION
+#define JSON_USE_EXCEPTION 1
+#endif
+
+/// If defined, indicates that the source file is amalgamated
+/// to prevent private header inclusion.
+/// Remarks: it is automatically defined in the generated amalgamated header.
+// #define JSON_IS_AMALGAMATION
+
+#ifdef JSON_IN_CPPTL
+#include <cpptl/config.h>
+#ifndef JSON_USE_CPPTL
+#define JSON_USE_CPPTL 1
+#endif
+#endif
+
+#ifdef JSON_IN_CPPTL
+#define JSON_API CPPTL_API
+#elif defined(JSON_DLL_BUILD)
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#define JSON_API __declspec(dllexport)
+#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
+#endif // if defined(_MSC_VER)
+#elif defined(JSON_DLL)
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#define JSON_API __declspec(dllimport)
+#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
+#endif // if defined(_MSC_VER)
+#endif // ifdef JSON_IN_CPPTL
+#if !defined(JSON_API)
+#define JSON_API
+#endif
+
+// If JSON_NO_INT64 is defined, then Json only support C++ "int" type for
+// integer
+// Storages, and 64 bits integer support is disabled.
+// #define JSON_NO_INT64 1
+
+#if defined(_MSC_VER) // MSVC
+#  if _MSC_VER <= 1200 // MSVC 6
+    // Microsoft Visual Studio 6 only support conversion from __int64 to double
+    // (no conversion from unsigned __int64).
+#    define JSON_USE_INT64_DOUBLE_CONVERSION 1
+    // Disable warning 4786 for VS6 caused by STL (identifier was truncated to '255'
+    // characters in the debug information)
+    // All projects I've ever seen with VS6 were using this globally (not bothering
+    // with pragma push/pop).
+#    pragma warning(disable : 4786)
+#  endif // MSVC 6
+
+#  if _MSC_VER >= 1500 // MSVC 2008
+    /// Indicates that the following function is deprecated.
+#    define JSONCPP_DEPRECATED(message) __declspec(deprecated(message))
+#  endif
+
+#endif // defined(_MSC_VER)
+
+// In c++11 the override keyword allows you to explicitly define that a function
+// is intended to override the base-class version.  This makes the code more
+// managable and fixes a set of common hard-to-find bugs.
+#if __cplusplus >= 201103L
+# define JSONCPP_OVERRIDE override
+# define JSONCPP_NOEXCEPT noexcept
+#elif defined(_MSC_VER) && _MSC_VER > 1600 && _MSC_VER < 1900
+# define JSONCPP_OVERRIDE override
+# define JSONCPP_NOEXCEPT throw()
+#elif defined(_MSC_VER) && _MSC_VER >= 1900
+# define JSONCPP_OVERRIDE override
+# define JSONCPP_NOEXCEPT noexcept
+#else
+# define JSONCPP_OVERRIDE
+# define JSONCPP_NOEXCEPT throw()
+#endif
+
+#ifndef JSON_HAS_RVALUE_REFERENCES
+
+#if defined(_MSC_VER) && _MSC_VER >= 1600 // MSVC >= 2010
+#define JSON_HAS_RVALUE_REFERENCES 1
+#endif // MSVC >= 2010
+
+#ifdef __clang__
+#if __has_feature(cxx_rvalue_references)
+#define JSON_HAS_RVALUE_REFERENCES 1
+#endif  // has_feature
+
+#elif defined __GNUC__ // not clang (gcc comes later since clang emulates gcc)
+#if defined(__GXX_EXPERIMENTAL_CXX0X__) || (__cplusplus >= 201103L)
+#define JSON_HAS_RVALUE_REFERENCES 1
+#endif  // GXX_EXPERIMENTAL
+
+#endif // __clang__ || __GNUC__
+
+#endif // not defined JSON_HAS_RVALUE_REFERENCES
+
+#ifndef JSON_HAS_RVALUE_REFERENCES
+#define JSON_HAS_RVALUE_REFERENCES 0
+#endif
+
+#ifdef __clang__
+#  if __has_extension(attribute_deprecated_with_message)
+#    define JSONCPP_DEPRECATED(message)  __attribute__ ((deprecated(message)))
+#  endif
+#elif defined __GNUC__ // not clang (gcc comes later since clang emulates gcc)
+#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
+#    define JSONCPP_DEPRECATED(message)  __attribute__ ((deprecated(message)))
+#  elif (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
+#    define JSONCPP_DEPRECATED(message)  __attribute__((__deprecated__))
+#  endif  // GNUC version
+#endif // __clang__ || __GNUC__
+
+#if !defined(JSONCPP_DEPRECATED)
+#define JSONCPP_DEPRECATED(message)
+#endif // if !defined(JSONCPP_DEPRECATED)
+
+#if __GNUC__ >= 6
+#  define JSON_USE_INT64_DOUBLE_CONVERSION 1
+#endif
+
+#if !defined(JSON_IS_AMALGAMATION)
+
+# include "version.h"
+
+# if JSONCPP_USING_SECURE_MEMORY
+#  include "allocator.h" //typedef Allocator
+# endif
+
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+namespace Json {
+typedef int Int;
+typedef unsigned int UInt;
+#if defined(JSON_NO_INT64)
+typedef int LargestInt;
+typedef unsigned int LargestUInt;
+#undef JSON_HAS_INT64
+#else                 // if defined(JSON_NO_INT64)
+// For Microsoft Visual use specific types as long long is not supported
+#if defined(_MSC_VER) // Microsoft Visual Studio
+typedef __int64 Int64;
+typedef unsigned __int64 UInt64;
+#else                 // if defined(_MSC_VER) // Other platforms, use long long
+typedef int64_t Int64;
+typedef uint64_t UInt64;
+#endif // if defined(_MSC_VER)
+typedef Int64 LargestInt;
+typedef UInt64 LargestUInt;
+#define JSON_HAS_INT64
+#endif // if defined(JSON_NO_INT64)
+#if JSONCPP_USING_SECURE_MEMORY
+#define JSONCPP_STRING        std::basic_string<char, std::char_traits<char>, Json::SecureAllocator<char> >
+#define JSONCPP_OSTRINGSTREAM std::basic_ostringstream<char, std::char_traits<char>, Json::SecureAllocator<char> >
+#define JSONCPP_OSTREAM       std::basic_ostream<char, std::char_traits<char>>
+#define JSONCPP_ISTRINGSTREAM std::basic_istringstream<char, std::char_traits<char>, Json::SecureAllocator<char> >
+#define JSONCPP_ISTREAM       std::istream
+#else
+#define JSONCPP_STRING        std::string
+#define JSONCPP_OSTRINGSTREAM std::ostringstream
+#define JSONCPP_OSTREAM       std::ostream
+#define JSONCPP_ISTRINGSTREAM std::istringstream
+#define JSONCPP_ISTREAM       std::istream
+#endif // if JSONCPP_USING_SECURE_MEMORY
+} // end namespace Json
+
+#endif // JSON_CONFIG_H_INCLUDED
+
+// //////////////////////////////////////////////////////////////////////
+// End of content of file: include/json/config.h
+// //////////////////////////////////////////////////////////////////////
+
+
+
+
+
+
+// //////////////////////////////////////////////////////////////////////
+// Beginning of content of file: include/json/forwards.h
+// //////////////////////////////////////////////////////////////////////
+
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef JSON_FORWARDS_H_INCLUDED
+#define JSON_FORWARDS_H_INCLUDED
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "config.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+namespace Json {
+
+// writer.h
+class FastWriter;
+class StyledWriter;
+
+// reader.h
+class Reader;
+
+// features.h
+class Features;
+
+// value.h
+typedef unsigned int ArrayIndex;
+class StaticString;
+class Path;
+class PathArgument;
+class Value;
+class ValueIteratorBase;
+class ValueIterator;
+class ValueConstIterator;
+
+} // namespace Json
+
+#endif // JSON_FORWARDS_H_INCLUDED
+
+// //////////////////////////////////////////////////////////////////////
+// End of content of file: include/json/forwards.h
+// //////////////////////////////////////////////////////////////////////
+
+
+
+
+
+#endif //ifndef JSON_FORWARD_AMALGAMATED_H_INCLUDED

doc/EXCEPTIONS.md

@@ -10,11 +10,11 @@ exception use.
 
 ## Rules
 1. **DO NOT** allow exceptions to leak out of new code into old code
-1. **DO** use NTSTATUS or HRESULT as return values as appropriate (HRESULT is preferred)
-1. **DO** Encapsulate all exception behaviors within implementing classes
+1. **DO** use `NTSTATUS` or `HRESULT` as return values as appropriate (`HRESULT` is preferred)
+1. **DO** encapsulate all exception behaviors within implementing classes
 1. **DO NOT** introduce modern exception throwing code into old code. Instead, refactor as needed to allow encapsulation or
    use non-exception based code
-1. **DO** use WIL as an alternative for non-throwing modern facilities (e.g. wil::unique_ptr<>)
+1. **DO** use WIL as an alternative for non-throwing modern facilities (e.g. `wil::unique_ptr<>`)
 
 ## Examples
 

doc/building.md

@@ -3,6 +3,8 @@
 
 Openconsole can be built with Visual Studio or from the command line. There are build scripts for both cmd and powershell in /tools.
 
+When using Visual Studio, be sure to set up the path for code formatting. This can be done in Visual Studio by going to Tools > Options > Text Editor > C++ > Formatting and checking "Use custom clang-format.exe file" and choosing the clang-format.exe in the repository at /dep/llvm/clang-format.exe by clicking "browse" right under the check box.
+
 ## Building with cmd
 
 The cmd scripts are set up to emulate a portion of the OS razzle build environment. razzle.cmd is the first script that should be run. bcz.cmd will build clean and bz.cmd should build incrementally.
@@ -11,6 +13,7 @@ There are also scripts for running the tests:
 - `runut.cmd` - run the unit tests
 - `runft.cmd` - run the feature tests
 - `runuia.cmd` - run the UIA tests
+- `runformat` - uses clang-format to format all c++ files to match our coding style.
 
 ## Build with Powershell
 
@@ -20,6 +23,7 @@ Openconsole.psm1 should be loaded with `Import-Module`. From there `Set-MsbuildD
 - `Invoke-OpenConsoleTests` - runs the various tests. Will run the unit tests by default.
 - `Start-OpenConsole` - starts Openconsole.exe from the output directory. x64 is run by default.
 - `Debug-OpenConsole` - starts Openconsole.exe and attaches it to the default debugger. x64 is run by default.
+- `Invoke-CodeFormat` - uses clang-format to format all c++ files to match our coding style.
 
 ## Configuration Types
 

doc/cascadia/Panes.md

@@ -0,0 +1,232 @@
+---
+author: "Mike Griese @zadjii-msft"
+created on: 2019-May-16
+---
+
+# Panes in the Windows Terminal
+
+## Abstract
+
+Panes are an abstraction by which the terminal can display multiple terminal
+instances simultaneously in a single terminal window. While tabs allow for a
+single terminal window to have many terminal sessions running simultaneously
+within a single window, only one tab can be visible at a time. Panes, on the
+other hand, allow a user to have many different terminal sessions visible to the
+user within the context of a single window at the same time. This can enable
+greater productivity from the user, as they can see the output of one terminal
+window while working in another.
+
+This spec will help outline the design of the implementation of panes in the
+Windows Terminal.
+
+## Inspirations
+
+Panes within the context of a single terminal window are not a new idea. The
+design of the panes for the Windows Terminal was heavily inspired by the
+application `tmux`, which is a commandline application which acts as a "terminal
+multiplexer", allowing for the easy managment of many terminal sessions from a
+single application.
+
+Other applications that include pane-like functionality include (but are not
+limited to):
+
+* screen
+* terminator
+* emacs & vim
+* Iterm2
+
+## Design
+
+The architecture of the Windows Terminal can be broken into two main pieces:
+Tabs and Panes. The Windows Terminal supports _top-level_ tabs, with nested
+panes inside the tabs. This means that there's a single strip of tabs along the
+application, and each tab has a set of panes that are visible within the context
+of that tab.
+
+Panes are implemented as a binary tree of panes. A Pane can either be a leaf
+pane, with it's own terminal control that it displays, or it could be a parent
+pane, where it has two children, each with their own terminal control.
+
+When a pane is a parent, its two children are either split vertically or
+horizontally. Parent nodes don't have a terminal of their own, they merely
+display the terminals of their children.
+
+ * If a Pane is split vertically, the two panes are seperated by a vertical
+   split, as to appear side-by-side. Think `[|]`
+ * If a Pane is split horizontally, the two panes are split by a horizontal
+   separator, and appear above/below one another. Think `[-]`.
+
+As additional panes are created, panes will continue to subdivide the space of
+their parent. It's up to the parent pane to control the sizing and display of
+it's children.
+
+### Example
+
+We'll start by taking the terminal and creating a single vertical split. There
+are now two panes in the terminal, side by side. The original terminal is `A`,
+and the newly created one is `B`. The terminal now looks like this:
+
+```
+  +---------------+
+  |       |       |    1: parent [|]
+  |       |       |    ├── 2: A
+  |       |       |    └── 3: B
+  |   A   |   B   |
+  |       |       |
+  |       |       |
+  |       |       |
+  +---------------+
+```
+
+Here, there are actually 3 nodes: 1 is the parent of both 2 and 3. 2 is the node
+containing the `A` terminal, and 3 is the node with the `B` terminal.
+
+
+We could now split `B` in two horizontally, creating a third terminal pane `C`.
+
+```
+  +---------------+
+  |       |       |    1: parent [|]
+  |       |   B   |    ├── 2: A
+  |       |       |    └── 3: parent [-]
+  |   A   +-------+        ├── 4: B
+  |       |       |        └── 5: C
+  |       |   C   |
+  |       |       |
+  +---------------+
+```
+
+Node 3 is now a parent node, and the terminal `B` has moved into a new node as a
+sibling of the new terminal `C`.
+
+We could also split `A` in horizontally, creating a fourth terminal pane `D`.
+
+```
+  +---------------+
+  |       |       |    1: parent [|]
+  |   A   |   B   |    ├── 2: parent [-]
+  |       |       |    |   ├── 4: A
+  +-------+-------+    |   └── 5: D
+  |       |       |    └── 3: parent [-]
+  |   D   |   C   |        ├── 4: B
+  |       |       |        └── 5: C
+  +---------------+
+```
+
+While it may appear that there's a single horizonal separator and a single
+vertical separator here, that's not actually the case. Due to the tree-like
+structure of the pane splitting, the horizontal splits exist only between the
+two panes they're splitting. So, the user could move each of the horizontal
+splits independently, without affecting the other set of panes. As an example:
+
+```
+  +---------------+
+  |       |       |
+  |   A   |       |
+  +-------+   B   |
+  |       |       |
+  |   D   |       |
+  |       +-------+
+  |       |   C   |
+  +---------------+
+```
+
+### Creating a pane
+
+In the basic use case, the user will decide to split the currently focused pane.
+The currently focused pane is always a leaf, because as parent's can't be
+focused (they don't have their own terminal). When a user decides to add a new
+pane, the child will:
+
+ 1. Convert into a parent
+ 2. Move its terminal into its first child
+ 3. Split its UI in half, and display each child in one half.
+
+It's up to the app hosting the panes to tell the pane what kind of terminal in
+wants created in the new pane. By default, the new pane will be created with the
+default settings profile.
+
+### While panes are open
+
+When a tab has multiple panes open, only one is the "active" pane. This is the
+pane that was last focused in the tab. If the tab is the currently open tab,
+then this is the pane with the currently focused terminal control. When the user
+brings the tab into focus, the last focused pane is the pane that should become
+focused again.
+
+The tab's state will be updated to reflect the state of it's focused pane. The
+title text and icon of the tab will reflect that of the focused pane. Should the
+focus switch from one pane to another, the tab's text and icon should update to
+reflect the newly focused control. Any additional state that the tab would
+display for a single pane should also be reflected in the tab for a tab with
+multiple panes.
+
+While panes are open, the user should be able to move any split between panes.
+In moving the split, the sizes of the terminal controls should be resized to
+match.
+
+### Closing a pane
+
+A pane can either be closed by the user manually, or when the terminal it's
+attached to raises its ConnectionClosed event. When this happens, we should
+remove this pane from the tree. The parent of the closing pane will have to
+remove the pane as one of it's children. If the sibling of the closing pane is a
+leaf, then the parent should just take all of the state from the remaining pane.
+This will cause the remaining pane's content to expand to take the entire
+boundaries of the parent's pane. If the remaining child was a parent itself,
+then the parent will take both the children of the remaining pane, and make them
+the parent's children, as if the parent node was taken from the tree and
+replaced by the remaining child.
+
+## Future considerations
+
+The Pane implementation isn't complete in it's current form. There are many
+additional things that could be done to improve the user experience. This is by
+no means a comprehensive list.
+
+* [ ] Panes should be resizable with the mouse. The user should be able to drag
+  the separator for a pair of panes, and have the content between them resize as
+  the separator moves.
+* [ ] There's no keyboard shortcut for "ClosePane"
+* [ ] The user should be able to configure what profile is used for splitting a
+  pane. Currently, the default profile is used, but it's possible a user might
+  want to create a new pane with the parent pane's profile.
+* [ ] There should be some sort of UI to indicate that a particular pane is
+  focused, more than just the blinking cursor. `tmux` accomplishes this by
+  colorizing the separators adjacent to the active pane. Another idea is
+  displaying a small outline around the focused pane (like when tabbing through
+  controls on a webpage).
+* [ ] The user should be able to navigate the focus of panes with the keyboard,
+  instead of requiring the mouse.
+* [ ] The user should be able to zoom a pane, to make the pane take the entire
+  size of the terminal window temporarily.
+* [ ] A pane doesn't necessarily need to host a terminal. It could potentially
+  host another UIElement. One could imagine enabling a user to quickly open up a
+  Browser pane to search for a particular string without needing to leave the
+  terminal.
+
+## Footnotes
+
+### Why not top-level panes, and nested tabs?
+
+If each pane were to have it's own set of tabs, then each pane would need to
+reserve screen real estate for a row of tabs. As a user continued to split the
+window, more and more of the screen would be dedicated to just displaying a row
+of tabs, which isn't really the important part of the application, the terminal
+is.
+
+Additionally, if there were top-level panes, once the root was split, it would
+not be possible to move a single pane to be the full size of the window. The
+user would need to somehow close the other panes, to be able to make the split
+the size of the dull window.
+
+One con of this design is that if a control is hosted in a pane, the current
+design makes it hard to move out of a pane into it's own tab, or into another
+pane. This could be solved a number of ways. There could be keyboard shortcuts
+for swapping the positions of tabs, or a shortcut for both "zooming" a tab
+(temporarily making it the full size) or even popping a pane out to it's own
+tab. Additionally, a right-click menu option could be added to do the
+aformentioned actions. Discoverability of these two actions is not as high as
+just dragging a tab from one pane to another; however, it's believed that panes
+are more of a power-user scenario, and power users will not neccessarily be
+turned off by the feature's discoverability.

doc/cascadia/SettingsSchema.md

@@ -0,0 +1,74 @@
+# Profiles.json Documentation
+
+## Globals
+Properties listed below affect the entire window, regardless of the profile settings.
+
+| Property | Necessity | Type | Description |
+| -------- | ---- | ----------- | ----------- |
+| `alwaysShowTabs` | _Required_ | Boolean | When set to `true`, tabs are always displayed. When set to `false` and `showTabsInTitlebar` is set to `false`, tabs only appear after typing <kbd>Ctrl</kbd> + <kbd>T</kbd>. |
+| `defaultProfile` | _Required_ | String | Sets the default profile. Opens by typing <kbd>Ctrl</kbd> + <kbd>T</kbd> or by clicking the '+' icon. The guid of the desired default profile is used as the value. |
+| `initialCols` | _Required_ | Integer | The number of columns displayed in the window upon first load. |
+| `initialRows` | _Required_ | Integer | The number of rows displayed in the window upon first load. |
+| `requestedTheme` | _Required_ | String | Sets the theme of the application. Possible values: `"light"`, `"dark"`, `"system"` |
+| `showTerminalTitleInTitlebar` | _Required_ | Boolean | When set to `true`, titlebar displays the title of the selected tab. When set to `false`, titlebar displays "Windows Terminal". |
+| `showTabsInTitlebar` | Optional | Boolean | When set to `true`, the tabs are moved into the titlebar and the titlebar disappears. When set to `false`, the titlebar sits above the tabs. |
+
+## Profiles
+Properties listed below are specific to each unique profile.
+
+| Property | Necessity | Type | Description |
+| -------- | ---- | ----------- | ----------- |
+| `acrylicOpacity` | _Required_ | Number | When `useAcrylic` is set to `true`, it sets the transparency of the window for the profile. Accepts floating point values from 0-1. |
+| `background` | _Required_ | String | Sets the background color of the profile. Overrides `background` set in color scheme if `colorscheme` is set. Uses hex color format: `"#rrggbb"`. |
+| `closeOnExit` | _Required_ | Boolean | When set to `true`, the selected tab closes when `exit` is typed. When set to `false`, the tab will remain open when `exit` is typed. |
+| `colorScheme` | _Required_ | String | Name of the terminal color scheme to use. Color schemes are defined under `schemes`. |
+| `commandline` | _Required_ | String | Executable used in the profile. |
+| `cursorColor` | _Required_ | String | Sets the cursor color for the profile. Uses hex color format: `"#rrggbb"`. |
+| `cursorShape` | _Required_ | String | Sets the cursor shape for the profile. Possible values: `"vintage"` ( &#x2583; ), `"bar"` ( &#x2503; ), `"underscore"` ( &#x2581; ), `"filledBox"` ( &#x2588; ), `"emptyBox"` ( &#x25AF; ) |
+| `fontFace` | _Required_ | String | Name of the font face used in the profile. |
+| `fontSize` | _Required_ | Integer | Sets the font size. |
+| `guid` | _Required_ | String | Unique identifier of the profile. Written in registry format: `"{00000000-0000-0000-0000-000000000000}"`. |
+| `historySize` | _Required_ | Integer | The number of lines above the ones displayed in the window you can scroll back to. |
+| `name` | _Required_ | String | Name of the profile. Displays in the dropdown menu. |
+| `padding` | _Required_ | String | Sets the padding around the text within the window. Can have three different formats: `"#"` sets the same padding for all sides, `"#, #"` sets the same padding for left-right and top-bottom, and `"#, #, #, #"` sets the padding individually for left, top, right, and bottom. |
+| `snapOnInput` | _Required_ | Boolean | When set to `true`, the window will scroll to the command input line when typing. When set to `false`, the window will not scroll when you start typing. |
+| `startingDirectory` | _Required_ | String | The directory the shell starts in when it is loaded. |
+| `useAcrylic` | _Required_ | Boolean | When set to `true`, the window will have an acrylic background. When set to `false`, the window will have a plain, untextured background. |
+| `colorTable` | Optional | Array[String] | Array of colors used in the profile if `colorscheme` is not set. Colors use hex color format: `"#rrggbb"`. Ordering is as follows: `[black, red, green, yellow, blue, magenta, cyan, white, bright black, bright red, bright green, bright yellow, bright blue, bright magenta, bright cyan, bright white]` |
+| `cursorHeight` | Optional | Integer | Sets the percentage height of the cursor starting from the bottom. Only works when `cursorShape` is set to `"vintage"`. Accepts values from 25-100. |
+| `foreground` | Optional | String | Sets the foreground color of the profile. Overrides `foreground` set in color scheme if `colorscheme` is set. Uses hex color format: `"#rrggbb"`. |
+| `icon` | Optional | String | Image file location of the icon used in the profile. Displays within the tab and the dropdown menu. |
+| `scrollbarState` | Optional | String | Defines the visibility of the scrollbar. Possible values: `"visible"`, `"hidden"` |
+
+## Schemes
+Properties listed below are specific to each color scheme. ColorTool is a great tool you can use to create and explore new color schemes. All colors use hex color format.
+
+| Property | Necessity | Type | Description |
+| -------- | ---- | ----------- | ----------- |
+| `name` | _Required_ | String | Name of the color scheme. |
+| `foreground` | _Required_ | String | Sets the foreground color of the color scheme. |
+| `background` | _Required_ | String | Sets the background color of the color scheme. |
+| `black` | _Required_ | String | Sets the color used as ANSI black. |
+| `blue` | _Required_ | String | Sets the color used as ANSI blue. |
+| `brightBlack` | _Required_ | String | Sets the color used as ANSI bright black. |
+| `brightBlue` | _Required_ | String | Sets the color used as ANSI bright blue. |
+| `brightCyan` | _Required_ | String | Sets the color used as ANSI bright cyan. |
+| `brightGreen` | _Required_ | String | Sets the color used as ANSI bright green. |
+| `brightPurple` | _Required_ | String | Sets the color used as ANSI bright purple. |
+| `brightRed` | _Required_ | String | Sets the color used as ANSI bright red. |
+| `brightWhite` | _Required_ | String | Sets the color used as ANSI bright white. |
+| `brightYellow` | _Required_ | String | Sets the color used as ANSI bright yellow. |
+| `cyan` | _Required_ | String | Sets the color used as ANSI cyan. |
+| `green` | _Required_ | String | Sets the color used as ANSI green. |
+| `purple` | _Required_ | String | Sets the color used as ANSI purple. |
+| `red` | _Required_ | String | Sets the color used as ANSI red. |
+| `white` | _Required_ | String | Sets the color used as ANSI white. |
+| `yellow` | _Required_ | String | Sets the color used as ANSI yellow. |
+
+## Keybindings
+Properties listed below are specific to each custom key binding.
+
+| Property | Necessity | Type | Description |
+| -------- | ---- | ----------- | ----------- |
+| `command` | _Required_ | String | The command executed when the associated key bindings are pressed. |
+| `keys` | _Required_ | Array[String] | Defines the key combinations used to call the command. |

doc/contributing.md

@@ -0,0 +1,155 @@
+# Terminal Contributor's Guide
+
+Below is our guidance for how to report issues, propose new features, and submit contributions via Pull Requests (PRs).
+
+## Open Development Workflow
+
+The Windows Terminal team is VERY active in this GitHub Repo. In fact, we live in it all day long and carry out all our development in the open!
+
+When the team finds issues we file them in the repo. When we propose new ideas or think-up new features, we file new feature requests. When we work on fixes or features, we create branches and work on those improvements. And when PRs are reviewed, we review in public - including all the good, the bad, and the ugly parts.
+
+The point of doing all this work in public is to ensure that we are holding ourselves to a high degree of transparency, and so that the community sees that we apply the same processes and hold ourselves to the same quality-bar as we do to community-submitted issues and PRs. We also want to make sure that we expose our team culture and "tribal knowledge" that is inherent in any closely-knit team, which often contains considerable value to those new to the project who are trying to figure out "why the heck does this thing look/work like this???"
+
+### Repo Bot
+
+The team triages new issues several times a week. During triage, the team uses labels to categorize, manage, and drive the project workflow.
+
+We employ [a bot engine](https://github.com/microsoft/terminal/blob/master/doc/bot.md) to help us automate common processes within our workflow.
+
+We drive the bot by tagging issues with specific labels which cause the bot engine to close issues, merge branches, etc. This bot engine helps us keep the repo clean by automating the process of notifying appropriate parties if/when information/follow-up is needed, and closing stale issues/PRs after reminders have remained unanswered for several days.
+
+Therefore, if you do file issues, or create PRs, please keep an eye on your GitHub notifications. If you do not respond to requests for information, your issues/PRs may be closed automatically.
+
+---
+
+## Before you start, file an issue
+
+Please follow this simple rule to help us eliminate any unnecessary wasted effort & frustration, and ensure an efficient and effective use of everyone's time - yours, ours, and other community members':
+
+> 👉 If you have a question, think you've discovered an issue, would like to propose a new feature, etc., then find/file an issue **BEFORE** starting work to fix/implement it.
+
+### Search existing issues first
+
+Before filing a new issue, search existing open and closed issues first: This project is moving fast! It is likely someone else has found the problem you're seeing, and someone may be working on or have already contributed a fix!
+
+If no existing item describes your issue/feature, great - please file a new issue:
+
+### File a new Issue
+
+* Don't know whether you're reporting an issue or requesting a feature? File an issue
+* Have a question that you don't see answered in docs, videos, etc.? File an issue
+* Want to know if we're planning on building a particular feature? File an issue
+* Got a great idea for a new feature? File an issue/request/idea
+* Don't understand how to do something? File an issue/Community Guidance Request
+* Found an existing issue that describes yours? Great - upvote and add additional commentary / info / repro-steps / etc.
+
+When you hit "New Issue", select the type of issue closest to what you want to report/ask/request:
+![New issue types](/doc/images/new-issue-template.png)
+
+### Complete the template
+
+**Complete the information requested in the issue template, providing as much information as possible**. The more information you provide, the more likely your issue/ask will be understood and implemented. Helpful information includes:
+
+* What device you're running (inc. CPU type, memory, disk, etc.)
+* What build of Windows your device is running
+
+  👉 Tip: Run the following in PowerShell Core
+
+  ```powershell
+  C:\> $PSVersionTable.OS
+  Microsoft Windows 10.0.18909
+  ```
+
+  ... or in Windows PowerShell
+
+  ```powershell
+  C:\> $PSVersionTable.BuildVersion
+
+  Major  Minor  Build  Revision
+  -----  -----  -----  --------
+  10     0      18912  1001
+  ```
+
+  ... or Cmd:
+
+  ```cmd
+  C:\> ver
+
+  Microsoft Windows [Version 10.0.18900.1001]
+  ```
+
+* What tools and apps you're using (e.g. VS 2019, VSCode, etc.)
+* Don't assume we're experts in setting up YOUR environment and don't assume we are experts in `<your distro/tool of choice>`. Teach us to help you!
+* **We LOVE detailed repro steps!** What steps do we need to take to reproduce the issue? Assume we love to read repro steps. As much detail as you can stand is probably _barely_ enough detail for us!
+* If you're reporting a particular character/glyph not rendering correctly, the specific Unicode codepoint would be MOST welcome (e.g. U+1F4AF, U+4382)
+* Prefer error message text where possible or screenshots of errors if text cannot be captured
+* We MUCH prefer text command-line script than screenshots of command-line script.
+* **If you intend to implement the fix/feature yourself then say so!** If you do not indicate otherwise we will assume that the issue is our to solve, or may label the issue as `Help-Wanted`.
+
+### DO NOT post "+1" comments
+
+> ⚠ DO NOT post "+1", "me too", or similar comments - they just add noise to an issue.
+
+If you don't have any additional info/context to add but would like to indicate that you're affected by the issue, upvote the original issue by clicking its [+😊] button and hitting 👍 (+1) icon. This way we can actually measure how impactful an issue is.
+
+---
+
+## Contributing fixes / features
+
+For those able & willing to help fix issues and/or implement features ...
+
+### To Spec or not to Spec
+
+Some issues/features may be quick and simple to describe and understand. For such scenarios, once a team member has agreed with your approach, skip ahead to the section headed "Fork, Branch, and Create your PR", below.
+
+Small issues that do not require a spec will be labelled Issue-Bug or Issue-Task.
+
+However, some issues/features will require careful thought & formal design before implementation. For these scenarios, we'll request that a spec is written and the associated issue will be labeled Issue-Feature.
+
+Specs help collaborators discuss different approaches to solve a problem, describe how the feature will behave, how the feature will impact the user, what happens if something goes wrong, etc. Driving towards agreement in a spec, before any code is written, often results in simpler code, and less wasted effort in the long run.
+
+Specs will be managed in a very similar manner as code contributions so please follow the "Fork, Branch and Create your PR" below.
+
+### Writing / Contributing-to a Spec
+
+To write/contribute to a spec: fork, branch and commit via PRs, as you would with any code changes.
+
+Specs are written in markdown, stored under the `\doc\spec` folder and named `[issue id] - [spec description].md`.
+
+👉 **It is important to follow the spec templates and complete the requested information**. The available spec templates will help ensure that specs contain the minimum information & decisions necessary to permit development to begin. In particular, specs require you to confirm that you've already discussed the issue/idea with the team in an issue and that you provide the issue ID for reference.
+
+Team members will be happy to help review specs and guide them to completion.
+
+### Help Wanted
+
+Once the team have approved an issue/spec, development can proceed. If no developers are immediately available, the spec can be parked ready for a developer to get started. Parked specs' issues will be labeled "Help Wanted". To find a list of development opportunities waiting for developer involvement, visit the Issues and filter on [the Help-Wanted label](https://github.com/microsoft/terminal/labels/Help-Wanted).
+
+---
+
+## Development
+
+### Fork, Clone, Branch and Create your PR
+
+Once you've discussed your proposed feature/fix/etc. with a team member, and you've agreed an approach or a spec has been written and approved, it's time to start development:
+
+1. Fork the repo if you haven't already
+1. Clone your fork locally
+1. Create & push a feature branch
+1. Create a [Draft Pull Request (PR)](https://github.blog/2019-02-14-introducing-draft-pull-requests/)
+1. Work on your changes
+
+### Code Review
+
+When you'd like the team to take a look, (even if the work is not yet fully-complete), mark the PR as 'Ready For Review' so that the team can review your work and provide comments, suggestions, and request changes. It may take several cycles, but the end result will be solid, testable, conformant code that is safe for us to merge.
+
+> ⚠ Remember: **changes you make may affect both Windows Terminal and Windows Console and may end up being re-incorporated into Windows itself!** Because of this, we will treat community PR's with the same level of scrutiny and rigor as commits submitted to the official Windows source by team members and partners.
+
+### Merge
+
+Once your code has been reviewed and approved by the requisite number of team members, it will be merged into the master branch. Once merged, your PR will be automatically closed.
+
+---
+
+## Thank you
+
+Thank you in advance for your contribution! Now, [what's next on the list](https://github.com/microsoft/terminal/labels/Help-Wanted)? 😜

doc/reference/UTF8-torture-test.txt

@@ -0,0 +1,212 @@
+
+UTF-8 encoded sample plain-text file
+‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+Markus Kuhn [ˈmaʳkʊs kuːn] <http://www.cl.cam.ac.uk/~mgk25/> — 2002-07-25
+
+
+The ASCII compatible UTF-8 encoding used in this plain-text file
+is defined in Unicode, ISO 10646-1, and RFC 2279.
+
+
+Using Unicode/UTF-8, you can write in emails and source code things such as
+
+Mathematics and sciences:
+
+  ∮ E⋅da = Q,  n → ∞, ∑ f(i) = ∏ g(i),      ⎧⎡⎛┌─────┐⎞⎤⎫
+                                            ⎪⎢⎜│a²+b³ ⎟⎥⎪
+  ∀x∈ℝ: ⌈x⌉ = −⌊−x⌋, α ∧ ¬β = ¬(¬α ∨ β),    ⎪⎢⎜│───── ⎟⎥⎪
+                                            ⎪⎢⎜⎷ c₈   ⎟⎥⎪
+  ℕ ⊆ ℕ₀ ⊂ ℤ ⊂ ℚ ⊂ ℝ ⊂ ℂ,                   ⎨⎢⎜       ⎟⎥⎬
+                                            ⎪⎢⎜ ∞     ⎟⎥⎪
+  ⊥ < a ≠ b ≡ c ≤ d ≪ ⊤ ⇒ (⟦A⟧ ⇔ ⟪B⟫),      ⎪⎢⎜ ⎲     ⎟⎥⎪
+                                            ⎪⎢⎜ ⎳aⁱ-bⁱ⎟⎥⎪
+  2H₂ + O₂ ⇌ 2H₂O, R = 4.7 kΩ, ⌀ 200 mm     ⎩⎣⎝i=1    ⎠⎦⎭
+
+Linguistics and dictionaries:
+
+  ði ıntəˈnæʃənəl fəˈnɛtık əsoʊsiˈeıʃn
+  Y [ˈʏpsilɔn], Yen [jɛn], Yoga [ˈjoːgɑ]
+
+APL:
+
+  ((V⍳V)=⍳⍴V)/V←,V    ⌷←⍳→⍴∆∇⊃‾⍎⍕⌈
+
+Nicer typography in plain text files:
+
+  ╔══════════════════════════════════════════╗
+  ║                                          ║
+  ║   • ‘single’ and “double” quotes         ║
+  ║                                          ║
+  ║   • Curly apostrophes: “We’ve been here” ║
+  ║                                          ║
+  ║   • Latin-1 apostrophe and accents: '´`  ║
+  ║                                          ║
+  ║   • ‚deutsche‘ „Anführungszeichen“       ║
+  ║                                          ║
+  ║   • †, ‡, ‰, •, 3–4, —, −5/+5, ™, …      ║
+  ║                                          ║
+  ║   • ASCII safety test: 1lI|, 0OD, 8B     ║
+  ║                      ╭─────────╮         ║
+  ║   • the euro symbol: │ 14.95 € │         ║
+  ║                      ╰─────────╯         ║
+  ╚══════════════════════════════════════════╝
+
+Combining characters:
+
+  STARGΛ̊TE SG-1, a = v̇ = r̈, a⃑ ⊥ b⃑
+
+Greek (in Polytonic):
+
+  The Greek anthem:
+
+  Σὲ γνωρίζω ἀπὸ τὴν κόψη
+  τοῦ σπαθιοῦ τὴν τρομερή,
+  σὲ γνωρίζω ἀπὸ τὴν ὄψη
+  ποὺ μὲ βία μετράει τὴ γῆ.
+
+  ᾿Απ᾿ τὰ κόκκαλα βγαλμένη
+  τῶν ῾Ελλήνων τὰ ἱερά
+  καὶ σὰν πρῶτα ἀνδρειωμένη
+  χαῖρε, ὦ χαῖρε, ᾿Ελευθεριά!
+
+  From a speech of Demosthenes in the 4th century BC:
+
+  Οὐχὶ ταὐτὰ παρίσταταί μοι γιγνώσκειν, ὦ ἄνδρες ᾿Αθηναῖοι,
+  ὅταν τ᾿ εἰς τὰ πράγματα ἀποβλέψω καὶ ὅταν πρὸς τοὺς
+  λόγους οὓς ἀκούω· τοὺς μὲν γὰρ λόγους περὶ τοῦ
+  τιμωρήσασθαι Φίλιππον ὁρῶ γιγνομένους, τὰ δὲ πράγματ᾿
+  εἰς τοῦτο προήκοντα,  ὥσθ᾿ ὅπως μὴ πεισόμεθ᾿ αὐτοὶ
+  πρότερον κακῶς σκέψασθαι δέον. οὐδέν οὖν ἄλλο μοι δοκοῦσιν
+  οἱ τὰ τοιαῦτα λέγοντες ἢ τὴν ὑπόθεσιν, περὶ ἧς βουλεύεσθαι,
+  οὐχὶ τὴν οὖσαν παριστάντες ὑμῖν ἁμαρτάνειν. ἐγὼ δέ, ὅτι μέν
+  ποτ᾿ ἐξῆν τῇ πόλει καὶ τὰ αὑτῆς ἔχειν ἀσφαλῶς καὶ Φίλιππον
+  τιμωρήσασθαι, καὶ μάλ᾿ ἀκριβῶς οἶδα· ἐπ᾿ ἐμοῦ γάρ, οὐ πάλαι
+  γέγονεν ταῦτ᾿ ἀμφότερα· νῦν μέντοι πέπεισμαι τοῦθ᾿ ἱκανὸν
+  προλαβεῖν ἡμῖν εἶναι τὴν πρώτην, ὅπως τοὺς συμμάχους
+  σώσομεν. ἐὰν γὰρ τοῦτο βεβαίως ὑπάρξῃ, τότε καὶ περὶ τοῦ
+  τίνα τιμωρήσεταί τις καὶ ὃν τρόπον ἐξέσται σκοπεῖν· πρὶν δὲ
+  τὴν ἀρχὴν ὀρθῶς ὑποθέσθαι, μάταιον ἡγοῦμαι περὶ τῆς
+  τελευτῆς ὁντινοῦν ποιεῖσθαι λόγον.
+
+  Δημοσθένους, Γ´ ᾿Ολυνθιακὸς
+
+Georgian:
+
+  From a Unicode conference invitation:
+
+  გთხოვთ ახლავე გაიაროთ რეგისტრაცია Unicode-ის მეათე საერთაშორისო
+  კონფერენციაზე დასასწრებად, რომელიც გაიმართება 10-12 მარტს,
+  ქ. მაინცში, გერმანიაში. კონფერენცია შეჰკრებს ერთად მსოფლიოს
+  ექსპერტებს ისეთ დარგებში როგორიცაა ინტერნეტი და Unicode-ი,
+  ინტერნაციონალიზაცია და ლოკალიზაცია, Unicode-ის გამოყენება
+  ოპერაციულ სისტემებსა, და გამოყენებით პროგრამებში, შრიფტებში,
+  ტექსტების დამუშავებასა და მრავალენოვან კომპიუტერულ სისტემებში.
+
+Russian:
+
+  From a Unicode conference invitation:
+
+  Зарегистрируйтесь сейчас на Десятую Международную Конференцию по
+  Unicode, которая состоится 10-12 марта 1997 года в Майнце в Германии.
+  Конференция соберет широкий круг экспертов по  вопросам глобального
+  Интернета и Unicode, локализации и интернационализации, воплощению и
+  применению Unicode в различных операционных системах и программных
+  приложениях, шрифтах, верстке и многоязычных компьютерных системах.
+
+Thai (UCS Level 2):
+
+  Excerpt from a poetry on The Romance of The Three Kingdoms (a Chinese
+  classic 'San Gua'):
+
+  [----------------------------|------------------------]
+    ๏ แผ่นดินฮั่นเสื่อมโทรมแสนสังเวช  พระปกเกศกองบู๊กู้ขึ้นใหม่
+  สิบสองกษัตริย์ก่อนหน้าแลถัดไป       สององค์ไซร้โง่เขลาเบาปัญญา
+    ทรงนับถือขันทีเป็นที่พึ่ง           บ้านเมืองจึงวิปริตเป็นนักหนา
+  โฮจิ๋นเรียกทัพทั่วหัวเมืองมา         หมายจะฆ่ามดชั่วตัวสำคัญ
+    เหมือนขับไสไล่เสือจากเคหา      รับหมาป่าเข้ามาเลยอาสัญ
+  ฝ่ายอ้องอุ้นยุแยกให้แตกกัน          ใช้สาวนั้นเป็นชนวนชื่นชวนใจ
+    พลันลิฉุยกุยกีกลับก่อเหตุ          ช่างอาเพศจริงหนาฟ้าร้องไห้
+  ต้องรบราฆ่าฟันจนบรรลัย           ฤๅหาใครค้ำชูกู้บรรลังก์ ฯ
+
+  (The above is a two-column text. If combining characters are handled
+  correctly, the lines of the second column should be aligned with the
+  | character above.)
+
+Ethiopian:
+
+  Proverbs in the Amharic language:
+
+  ሰማይ አይታረስ ንጉሥ አይከሰስ።
+  ብላ ካለኝ እንደአባቴ በቆመጠኝ።
+  ጌጥ ያለቤቱ ቁምጥና ነው።
+  ደሀ በሕልሙ ቅቤ ባይጠጣ ንጣት በገደለው።
+  የአፍ ወለምታ በቅቤ አይታሽም።
+  አይጥ በበላ ዳዋ ተመታ።
+  ሲተረጉሙ ይደረግሙ።
+  ቀስ በቀስ፥ ዕንቁላል በእግሩ ይሄዳል።
+  ድር ቢያብር አንበሳ ያስር።
+  ሰው እንደቤቱ እንጅ እንደ ጉረቤቱ አይተዳደርም።
+  እግዜር የከፈተውን ጉሮሮ ሳይዘጋው አይድርም።
+  የጎረቤት ሌባ፥ ቢያዩት ይስቅ ባያዩት ያጠልቅ።
+  ሥራ ከመፍታት ልጄን ላፋታት።
+  ዓባይ ማደሪያ የለው፥ ግንድ ይዞ ይዞራል።
+  የእስላም አገሩ መካ የአሞራ አገሩ ዋርካ።
+  ተንጋሎ ቢተፉ ተመልሶ ባፉ።
+  ወዳጅህ ማር ቢሆን ጨርስህ አትላሰው።
+  እግርህን በፍራሽህ ልክ ዘርጋ።
+
+Runes:
+
+  ᚻᛖ ᚳᚹᚫᚦ ᚦᚫᛏ ᚻᛖ ᛒᚢᛞᛖ ᚩᚾ ᚦᚫᛗ ᛚᚪᚾᛞᛖ ᚾᚩᚱᚦᚹᛖᚪᚱᛞᚢᛗ ᚹᛁᚦ ᚦᚪ ᚹᛖᛥᚫ
+
+  (Old English, which transcribed into Latin reads 'He cwaeth that he
+  bude thaem lande northweardum with tha Westsae.' and means 'He said
+  that he lived in the northern land near the Western Sea.')
+
+Braille:
+
+  ⡌⠁⠧⠑ ⠼⠁⠒  ⡍⠜⠇⠑⠹⠰⠎ ⡣⠕⠌
+
+  ⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠙⠑⠁⠙⠒ ⠞⠕ ⠃⠑⠛⠔ ⠺⠊⠹⠲ ⡹⠻⠑ ⠊⠎ ⠝⠕ ⠙⠳⠃⠞
+  ⠱⠁⠞⠑⠧⠻ ⠁⠃⠳⠞ ⠹⠁⠞⠲ ⡹⠑ ⠗⠑⠛⠊⠌⠻ ⠕⠋ ⠙⠊⠎ ⠃⠥⠗⠊⠁⠇ ⠺⠁⠎
+  ⠎⠊⠛⠝⠫ ⠃⠹ ⠹⠑ ⠊⠇⠻⠛⠹⠍⠁⠝⠂ ⠹⠑ ⠊⠇⠻⠅⠂ ⠹⠑ ⠥⠝⠙⠻⠞⠁⠅⠻⠂
+  ⠁⠝⠙ ⠹⠑ ⠡⠊⠑⠋ ⠍⠳⠗⠝⠻⠲ ⡎⠊⠗⠕⠕⠛⠑ ⠎⠊⠛⠝⠫ ⠊⠞⠲ ⡁⠝⠙
+  ⡎⠊⠗⠕⠕⠛⠑⠰⠎ ⠝⠁⠍⠑ ⠺⠁⠎ ⠛⠕⠕⠙ ⠥⠏⠕⠝ ⠰⡡⠁⠝⠛⠑⠂ ⠋⠕⠗ ⠁⠝⠹⠹⠔⠛ ⠙⠑
+  ⠡⠕⠎⠑ ⠞⠕ ⠏⠥⠞ ⠙⠊⠎ ⠙⠁⠝⠙ ⠞⠕⠲
+
+  ⡕⠇⠙ ⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠁⠎ ⠙⠑⠁⠙ ⠁⠎ ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲
+
+  ⡍⠔⠙⠖ ⡊ ⠙⠕⠝⠰⠞ ⠍⠑⠁⠝ ⠞⠕ ⠎⠁⠹ ⠹⠁⠞ ⡊ ⠅⠝⠪⠂ ⠕⠋ ⠍⠹
+  ⠪⠝ ⠅⠝⠪⠇⠫⠛⠑⠂ ⠱⠁⠞ ⠹⠻⠑ ⠊⠎ ⠏⠜⠞⠊⠊⠥⠇⠜⠇⠹ ⠙⠑⠁⠙ ⠁⠃⠳⠞
+  ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲ ⡊ ⠍⠊⠣⠞ ⠙⠁⠧⠑ ⠃⠑⠲ ⠔⠊⠇⠔⠫⠂ ⠍⠹⠎⠑⠇⠋⠂ ⠞⠕
+  ⠗⠑⠛⠜⠙ ⠁ ⠊⠕⠋⠋⠔⠤⠝⠁⠊⠇ ⠁⠎ ⠹⠑ ⠙⠑⠁⠙⠑⠌ ⠏⠊⠑⠊⠑ ⠕⠋ ⠊⠗⠕⠝⠍⠕⠝⠛⠻⠹
+  ⠔ ⠹⠑ ⠞⠗⠁⠙⠑⠲ ⡃⠥⠞ ⠹⠑ ⠺⠊⠎⠙⠕⠍ ⠕⠋ ⠳⠗ ⠁⠝⠊⠑⠌⠕⠗⠎
+  ⠊⠎ ⠔ ⠹⠑ ⠎⠊⠍⠊⠇⠑⠆ ⠁⠝⠙ ⠍⠹ ⠥⠝⠙⠁⠇⠇⠪⠫ ⠙⠁⠝⠙⠎
+  ⠩⠁⠇⠇ ⠝⠕⠞ ⠙⠊⠌⠥⠗⠃ ⠊⠞⠂ ⠕⠗ ⠹⠑ ⡊⠳⠝⠞⠗⠹⠰⠎ ⠙⠕⠝⠑ ⠋⠕⠗⠲ ⡹⠳
+  ⠺⠊⠇⠇ ⠹⠻⠑⠋⠕⠗⠑ ⠏⠻⠍⠊⠞ ⠍⠑ ⠞⠕ ⠗⠑⠏⠑⠁⠞⠂ ⠑⠍⠏⠙⠁⠞⠊⠊⠁⠇⠇⠹⠂ ⠹⠁⠞
+  ⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠁⠎ ⠙⠑⠁⠙ ⠁⠎ ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲
+
+  (The first couple of paragraphs of "A Christmas Carol" by Dickens)
+
+Compact font selection example text:
+
+  ABCDEFGHIJKLMNOPQRSTUVWXYZ /0123456789
+  abcdefghijklmnopqrstuvwxyz £©µÀÆÖÞßéöÿ
+  –—‘“”„†•…‰™œŠŸž€ ΑΒΓΔΩαβγδω АБВГДабвгд
+  ∀∂∈ℝ∧∪≡∞ ↑↗↨↻⇣ ┐┼╔╘░►☺♀ fi<>⑀₂ἠḂӥẄɐː⍎אԱა
+
+Greetings in various languages:
+
+  Hello world, Καλημέρα κόσμε, コンニチハ
+
+Box drawing alignment tests:                                          █
+                                                                      ▉
+  ╔══╦══╗  ┌──┬──┐  ╭──┬──╮  ╭──┬──╮  ┏━━┳━━┓  ┎┒┏┑   ╷  ╻ ┏┯┓ ┌┰┐    ▊ ╱╲╱╲╳╳╳
+  ║┌─╨─┐║  │╔═╧═╗│  │╒═╪═╕│  │╓─╁─╖│  ┃┌─╂─┐┃  ┗╃╄┙  ╶┼╴╺╋╸┠┼┨ ┝╋┥    ▋ ╲╱╲╱╳╳╳
+  ║│╲ ╱│║  │║   ║│  ││ │ ││  │║ ┃ ║│  ┃│ ╿ │┃  ┍╅╆┓   ╵  ╹ ┗┷┛ └┸┘    ▌ ╱╲╱╲╳╳╳
+  ╠╡ ╳ ╞╣  ├╢   ╟┤  ├┼─┼─┼┤  ├╫─╂─╫┤  ┣┿╾┼╼┿┫  ┕┛┖┚     ┌┄┄┐ ╎ ┏┅┅┓ ┋ ▍ ╲╱╲╱╳╳╳
+  ║│╱ ╲│║  │║   ║│  ││ │ ││  │║ ┃ ║│  ┃│ ╽ │┃  ░░▒▒▓▓██ ┊  ┆ ╎ ╏  ┇ ┋ ▎
+  ║└─╥─┘║  │╚═╤═╝│  │╘═╪═╛│  │╙─╀─╜│  ┃└─╂─┘┃  ░░▒▒▓▓██ ┊  ┆ ╎ ╏  ┇ ┋ ▏
+  ╚══╩══╝  └──┴──┘  ╰──┴──╯  ╰──┴──╯  ┗━━┻━━┛  ▗▄▖▛▀▜   └╌╌┘ ╎ ┗╍╍┛ ┋  ▁▂▃▄▅▆▇█
+                                               ▝▀▘▙▄▟

doc/specs/spec-template.md

@@ -0,0 +1,58 @@
+---
+author: <first-name> <last-name> <github-id>/<email>
+created on: <yyyy-mm-dd>
+last updated: <yyyy-mm-dd>
+issue id: <github issue id>
+---
+
+# Spec Title
+
+## Abstract
+
+[comment]: # Outline what this spec describes
+
+## Inspiration
+
+[comment]: # What were the drivers/inspiration behind the creation of this spec.
+
+## Solution Design
+
+[comment]: # Outline the design of the solution. Feel free to include ASCII-art diagrams, etc.
+
+## UI/UX Design
+
+[comment]: # What will this fix/feature look like? How will it affect the end user?
+
+## Capabilities
+
+[comment]: # Discuss how the proposed fixes/features impact the following key considerations:
+
+### Accessibility
+
+[comment]: # How will the proposed change impact accessibility for users of screen readers, assistive input devices, etc.
+
+### Security
+
+[comment]: # How will the proposed change impact security?
+
+### Reliability
+
+[comment]: # Will the proposed change improve reliabilty? If not, why make the change?
+
+### Compatibility
+
+[comment]: # Will the proposed change break existing code/behaviors? If so, how, and is the breaking change "worth it"?
+
+### Performance, Power, and Efficiency
+
+## Potential Issues
+
+[comment]: # What are some of the things that might cause problems with the fixes/features proposed? Consider how the user might be negatively impacted.
+
+## Future considerations
+
+[comment]: # What are some of the things that the fixes/features might unlock in the future? Does the implementation of this spec enable scenarios?
+
+## Resources
+
+[comment]: # Be sure to add links to references, resources, footnotes, etc.

res/LICENSE

@@ -0,0 +1,396 @@
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res/README.md

@@ -0,0 +1,6 @@
+# Windows Terminal and Console Assets
+
+The assets in this directory do not fall under the same [license](https://raw.githubusercontent.com/microsoft/terminal/master/LICENSE) as the rest
+of the Windows Terminal code.
+
+Please consult the [license](./LICENSE) in this directory for applicable terms.

src/buffer/out/AttrRow.cpp

@@ -4,14 +4,14 @@
 #include "precomp.h"
 #include "AttrRow.hpp"
 
- // Routine Description:
- // - constructor
- // Arguments:
- // - cchRowWidth - the length of the default text attribute
- // - attr - the default text attribute
- // Return Value:
- // - constructed object
- // Note: will throw exception if unable to allocate memory for text attribute storage
+// Routine Description:
+// - constructor
+// Arguments:
+// - cchRowWidth - the length of the default text attribute
+// - attr - the default text attribute
+// Return Value:
+// - constructed object
+// Note: will throw exception if unable to allocate memory for text attribute storage
 ATTR_ROW::ATTR_ROW(const UINT cchRowWidth, const TextAttribute attr)
 {
     _list.push_back(TextAttributeRun(cchRowWidth, attr));
@@ -210,7 +210,6 @@ void ATTR_ROW::ReplaceLegacyAttrs(_In_ WORD wToBeReplacedAttr, _In_ WORD wReplac
     ReplaceAttrs(ToBeReplaced, ReplaceWith);
 }
 
-
 // Method Description:
 // - Replaces all runs in the row with the given toBeReplacedAttr with the new
 //      attribute replaceWith.
@@ -230,7 +229,6 @@ void ATTR_ROW::ReplaceAttrs(const TextAttribute& toBeReplacedAttr, const TextAtt
     }
 }
 
-
 // Routine Description:
 // - Takes a array of attribute runs, and inserts them into this row from startIndex to endIndex.
 // - For example, if the current row was was [{4, BLUE}], the merge string
@@ -245,11 +243,10 @@ void ATTR_ROW::ReplaceAttrs(const TextAttribute& toBeReplacedAttr, const TextAtt
 // Return Value:
 // - STATUS_NO_MEMORY if there wasn't enough memory to insert the runs
 //   otherwise STATUS_SUCCESS if we were successful.
-[[nodiscard]]
-HRESULT ATTR_ROW::InsertAttrRuns(const std::basic_string_view<TextAttributeRun> newAttrs,
-                                 const size_t iStart,
-                                 const size_t iEnd,
-                                 const size_t cBufferWidth)
+[[nodiscard]] HRESULT ATTR_ROW::InsertAttrRuns(const std::basic_string_view<TextAttributeRun> newAttrs,
+                                               const size_t iStart,
+                                               const size_t iEnd,
+                                               const size_t cBufferWidth)
 {
     // Definitions:
     // Existing Run = The run length encoded color array we're already storing in memory before this was called.

src/buffer/out/AttrRow.hpp

@@ -47,11 +47,10 @@ public:
 
     void Resize(const size_t newWidth);
 
-    [[nodiscard]]
-    HRESULT InsertAttrRuns(const std::basic_string_view<TextAttributeRun> newAttrs,
-                           const size_t iStart,
-                           const size_t iEnd,
-                           const size_t cBufferWidth);
+    [[nodiscard]] HRESULT InsertAttrRuns(const std::basic_string_view<TextAttributeRun> newAttrs,
+                                         const size_t iStart,
+                                         const size_t iEnd,
+                                         const size_t cBufferWidth);
 
     static std::vector<TextAttributeRun> PackAttrs(const std::vector<TextAttribute>& attrs);
 
@@ -65,12 +64,10 @@ public:
     friend class AttrRowIterator;
 
 private:
-
     std::vector<TextAttributeRun> _list;
     size_t _cchRowWidth;
 
 #ifdef UNIT_TESTING
     friend class AttrRowTests;
 #endif
-
 };

src/buffer/out/AttrRowIterator.hpp

@@ -13,7 +13,6 @@ Author(s):
 - Austin Diviness (AustDi) 04-Jun-2018
 --*/
 
-
 #pragma once
 
 #include "TextAttribute.hpp"
@@ -55,7 +54,7 @@ private:
     std::vector<TextAttributeRun>::const_iterator _run;
     const ATTR_ROW* _pAttrRow;
     size_t _currentAttributeIndex; // index of TextAttribute within the current TextAttributeRun
-    
+
     void _increment(size_t count);
     void _decrement(size_t count);
     void _setToEnd();