Initial Commit

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug report
+description: Something is not working as expected.
+title: Description of the bug
+labels: bug
+
+body:
+  - type: textarea
+    attributes:
+      label: Describe the bug
+      description: >-
+        A clear and concise description of what the bug is.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: To Reproduce
+      description: >-
+        Steps to reproduce the behavior.
+      placeholder: |
+        1. Go to '...'
+        2. Click on '....'
+        3. Scroll down to '....'
+        4. See error
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Expected behavior
+      description: >-
+        A clear and concise description of what you expected to happen.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Additional context
+      description: >-
+        Add any other context about the problem here.

.github/ISSUE_TEMPLATE/component_request.yml

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+name: Components request
+description: Suggest an idea for a new component
+title: Description of the component request
+labels: enhancement
+
+body:
+  - type: textarea
+    attributes:
+      label: Why would you like to add a new component?
+      placeholder: >-
+      	A clear and concise description of why the component should be added.
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Name the native widgets.
+      placeholder: >-
+        A list of the native widgets of Gtk/Libadwaita or AppKit, if you know them.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Describe your idea for the implementation.
+      placeholder: >-
+        What could the implementation be like in Dvandva?
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Additional context
+      placeholder: >-
+        Add any other context about the component request here.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Feature request
+description: Suggest an idea for this project
+title: Description of the feature request
+labels: enhancement
+
+body:
+  - type: input
+    attributes:
+      label: Is your feature request related to a problem? Please describe.
+      placeholder: A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Describe the solution you'd like
+      placeholder: >-
+        A clear and concise description of what you want to happen.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Describe alternatives you've considered
+      placeholder: >-
+        A clear and concise description of any alternative solutions or features you've considered.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Additional context
+      placeholder: >-
+        Add any other context or screenshots about the feature request here.
+    validations:
+      required: true

.github/PULL_REQUEST_TEMPLATE.md

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+## Steps
+- [ ] Add your name or username and a link to your GitHub profile into the [Contributors.md][1] file.
+- [ ] Build the project on your machine. If it does not compile, fix the errors.
+- [ ] Describe the purpose and approach of your pull request below.
+- [ ] Submit the pull request. Thank you very much for your contribution!
+
+## Purpose
+_Describe the problem or feature._
+_If there is a related issue, add the link._
+
+## Approach
+_Describe how this pull request solves the problem or adds the feature._
+
+[1]:	/Contributors.md

.github/workflows/swiftlint.yml

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+name: SwiftLint
+
+on:
+  push:
+    paths:
+      - '.github/workflows/swiftlint.yml'
+      - '.swiftlint.yml'
+      - '**/*.swift'
+  pull_request:
+    paths:
+      - '.github/workflows/swiftlint.yml'
+      - '.swiftlint.yml'
+      - '**/*.swift'
+  workflow_dispatch:
+    paths:
+      - '.github/workflows/swiftlint.yml'
+      - '.swiftlint.yml'
+      - '**/*.swift'
+
+jobs:
+  SwiftLint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: SwiftLint
+        uses: norio-nomura/[email protected]
+        with:
+          args: --strict
+        env:
+          WORKING_DIRECTORY: Source

.gitignore

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+.DS_Store
+/.build
+/Packages
+/*.xcodeproj
+xcuserdata/
+DerivedData/
+/.swiftpm
+.netrc
+/Package.resolved
+.Ulysses-Group.plist

.swiftlint.yml

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+# Opt-In Rules
+opt_in_rules:
+    - anonymous_argument_in_multiline_closure
+    - array_init
+    - attributes
+    - closure_body_length
+    - closure_end_indentation
+    - closure_spacing
+    - collection_alignment
+    - comma_inheritance
+    - conditional_returns_on_newline
+    - contains_over_filter_count
+    - contains_over_filter_is_empty
+    - contains_over_first_not_nil
+    - contains_over_range_nil_comparison
+    - convenience_type
+    - discouraged_none_name
+    - discouraged_object_literal
+    - discouraged_optional_boolean
+    - discouraged_optional_collection
+    - empty_collection_literal
+    - empty_count
+    - empty_string
+    - enum_case_associated_values_count
+    - explicit_init
+    - fallthrough
+    - file_header
+    - file_name
+    - file_name_no_space
+    - first_where
+    - flatmap_over_map_reduce
+    - force_unwrapping
+    - function_default_parameter_at_end
+    - identical_operands
+    - implicit_return
+    - implicitly_unwrapped_optional
+    - joined_default_parameter
+    - last_where
+    - legacy_multiple
+    - let_var_whitespace
+    - literal_expression_end_indentation
+    - local_doc_comment
+    - lower_acl_than_parent
+    - missing_docs
+    - modifier_order
+    - multiline_arguments
+    - multiline_arguments_brackets
+    - multiline_function_chains
+    - multiline_literal_brackets
+    - multiline_parameters
+    - multiline_parameters_brackets
+    - no_extension_access_modifier
+    - no_grouping_extension
+    - no_magic_numbers
+    - number_separator
+    - operator_usage_whitespace
+    - optional_enum_case_matching
+    - prefer_self_in_static_references
+    - prefer_self_type_over_type_of_self
+    - prefer_zero_over_explicit_init
+    - prohibited_interface_builder
+    - redundant_nil_coalescing
+    - redundant_type_annotation
+    - return_value_from_void_function
+    - shorthand_optional_binding
+    - sorted_first_last
+    - sorted_imports
+    - static_operator
+    - strict_fileprivate
+    - switch_case_on_newline
+    - toggle_bool
+    - trailing_closure
+    - type_contents_order
+    - unneeded_parentheses_in_closure_argument
+    - yoda_condition
+
+# Disabled Rules
+disabled_rules:
+    - block_based_kvo
+    - class_delegate_protocol
+    - dynamic_inline
+    - is_disjoint
+    - no_fallthrough_only
+    - notification_center_detachment
+    - ns_number_init_as_function_reference
+    - nsobject_prefer_isequal
+    - private_over_fileprivate
+    - redundant_objc_attribute
+    - self_in_property_initialization
+    - todo
+    - unavailable_condition
+    - valid_ibinspectable
+    - xctfail_message
+
+# Custom Rules
+custom_rules:
+    github_issue:
+        name: 'GitHub Issue'
+        regex: '//.(TODO|FIXME):.(?!.*(https://github\.com/david-swift/Dvandva/issues/\d))'
+        message: 'The related GitHub issue must be included in a TODO or FIXME.'
+        severity: warning
+
+    fatal_error:
+        name: 'Fatal Error'
+        regex: 'fatalError.*\(.*\)'
+        message: 'Fatal error should not be used.'
+        severity: error
+
+    enum_case_parameter:
+        name: 'Enum Case Parameter'
+        regex: 'case [a-zA-Z0-9]*\([a-zA-Z0-9\.<>?,\n\t =]+\)'
+        message: 'The associated values of an enum case should have parameters.'
+        severity: warning
+
+    tab:
+        name: 'Whitespaces Instead of Tab'
+        regex: '\t'
+        message: 'Spaces should be used instead of tabs.'
+        severity: warning
+
+    # Thanks to the creator of the SwiftLint rule
+    # "empty_first_line"
+    # https://github.com/coteditor/CotEditor/blob/main/.swiftlint.yml
+    # in the GitHub repository
+    # "CotEditor"
+    # https://github.com/coteditor/CotEditor
+    empty_first_line:
+        name: 'Empty First Line'
+        regex: '(^[ a-zA-Z ]*(?:protocol|extension|class|struct) (?!(?:var|let))[ a-zA-Z:]*\{\n *\S+)'
+        message: 'There should be an empty line after a declaration'
+        severity: error
+
+# Analyzer Rules
+analyzer_rules:
+    - unused_declaration
+    - unused_import
+
+# Options
+file_header:
+    required_pattern: '(//  swift-tools-version: .+)?//\n//  .*.swift\n//  Dvandva\n//\n//  Created by .* on .*\.(\n//  Edited by (.*,)+\.)*\n(\n//  Thanks to .* for the .*:\n//  ".*"\n//  https://.* \(\d\d.\d\d.\d\d\))*//\n'
+missing_docs:
+    warning: [internal, private]
+    error: [open, public]
+    excludes_extensions: false
+    excludes_inherited_types: false
+type_contents_order:
+    order:
+        - case
+        - type_alias
+        - associated_type
+        - type_property
+        - instance_property
+        - ib_inspectable
+        - ib_outlet
+        - subscript
+        - initializer
+        - deinitializer
+        - subtype
+        - type_method
+        - view_life_cycle_method
+        - ib_action
+        - other_method

Bundler.toml

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+[apps.Test]
+product = 'Test'
+version = '0.1.0'

CONTRIBUTING.md

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+# Contributing
+
+Thank you very much for taking the time for contributing to this project. 
+
+## Report a Bug
+Just open a new issue on GitHub and describe the bug. It helps if your description is detailed. Thank you very much for your contribution!
+
+## Suggest a New Feature
+Just open a new issue on GitHub and describe the idea. Thank you very much for your contribution!
+
+### Suggest a New Component
+If you want to add a component, just open an issue.
+
+## Pull Requests
+I am happy for every pull request, you do not have to follow these guidelines. However, it might help you to understand the project structure and make it easier for me to merge your pull request. Thank you very much for your contribution!
+
+### 1. Fork & Clone this Project
+Start by clicking on the `Fork` button at the top of the page. Then, clone this repository to your computer. 
+
+### 2. Open the Project
+Open the project folder in GNOME Builder, Xcode or another IDE.
+
+### 3. Understand the Project Structure
+- The `README.md` file contains a description of the app or package.
+- The `Contributors.md` file contains the names or user names of all the contributors with a link to their GitHub profile.
+- The `LICENSE.md` contains an GPL-3.0 license.
+- `CONTRIBUTING.md` is this file.
+- `Bundler.toml` contains information for the test app on macOS.
+- Directory `Icons` that contains PNG and PXD (Pixelmator Pro) files for the images used in the app and guides.
+- Directory `Documentation` that contains the documentation generated with [SourceDocs][1].
+- `Sources` contains the source code of the project.
+	- `Dvandva` contains the source code of the project.
+		- `Extensions` contains extensions for existing types.
+		- `Swift` contains representations of simple types, often enumerations, in Swift.
+	    - `Widgets` contains the actual widgets.
+- `Tests` contains an example application.
+
+### 4. Edit the Code
+Edit the code. If you add a new type, add documentation in the code.
+
+### 5. Commit to the Fork
+Commit and push the fork.
+
+### 6. Pull Request
+Open GitHub to submit a pull request. Thank you very much for your contribution!
+
+[1]:	https://github.com/SourceDocs/SourceDocs

Contributors.md

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+# Contributors
+
+- [david-swift](https://github.com/david-swift)