Initial commit

Author: kddnewton

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: "bundler"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/main.yml

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+name: Main
+on:
+- push
+- pull_request_target
+jobs:
+  ci:
+    name: CI
+    runs-on: ubuntu-latest
+    env:
+      CI: true
+    steps:
+    - uses: actions/checkout@master
+    - uses: ruby/setup-ruby@v1
+      with:
+        bundler-cache: true
+        ruby-version: '3.1'
+    - name: Test
+      run: bundle exec rake test
+  automerge:
+    name: AutoMerge
+    needs: ci
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request_target' && github.actor == 'dependabot[bot]'
+    steps:
+    - uses: actions/github-script@v3
+      with:
+        script: |
+          github.pulls.merge({
+            owner: context.payload.repository.owner.login,
+            repo: context.payload.repository.name,
+            pull_number: context.payload.pull_request.number
+          })

.gitignore

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+coverage
+test.haml

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+nationality, personal appearance, race, religion, or sexual identity and
+orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at [email protected]. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at [https://contributor-covenant.org/version/1/4][version]
+
+[homepage]: https://contributor-covenant.org
+[version]: https://contributor-covenant.org/version/1/4/

Gemfile

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+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+gemspec

Gemfile.lock

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+PATH
+  remote: .
+  specs:
+    syntax_tree-haml (0.1.0)
+      haml (>= 5.2)
+      syntax_tree
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    docile (1.4.0)
+    haml (5.2.2)
+      temple (>= 0.8.0)
+      tilt
+    minitest (5.15.0)
+    rake (13.0.6)
+    simplecov (0.21.2)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.12.3)
+    simplecov_json_formatter (0.1.4)
+    syntax_tree (1.2.0)
+    temple (0.8.2)
+    tilt (2.0.10)
+
+PLATFORMS
+  x86_64-darwin-21
+
+DEPENDENCIES
+  bundler
+  minitest
+  rake
+  simplecov
+  syntax_tree-haml!
+
+BUNDLED WITH
+   2.4.0.dev

README.md

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+# SyntaxTree::Haml
+
+[![Build Status](https://github.com/ruby-syntax-tree/syntax_tree-haml/workflows/Main/badge.svg)](https://github.com/ruby-syntax-tree/syntax_tree-haml/actions)
+[![Gem Version](https://img.shields.io/gem/v/syntax_tree-haml.svg)](https://rubygems.org/gems/syntax_tree-haml)
+
+[Syntax Tree](https://github.com/ruby-syntax-tree/syntax_tree) support for the [Haml template language](https://haml.info/).
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem "syntax_tree-haml"
+```
+
+And then execute:
+
+    $ bundle install
+
+Or install it yourself as:
+
+    $ gem install syntax_tree-haml
+
+## Usage
+
+From code:
+
+```ruby
+require "syntax_tree/haml"
+
+pp SyntaxTree::Haml.parse(source) # print out the AST
+puts SyntaxTree::Haml.format(source) # format the AST
+```
+
+From the CLI:
+
+```sh
+$ stree ast template.haml
+(root children=[(tag attributes={} value="Hello, world!")])
+```
+
+or
+
+```sh
+$ stree format template.haml
+%span Hello, world!
+```
+
+or
+
+```sh
+$ stree write template.haml
+template.haml 1ms
+```
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/ruby-syntax-tree/syntax_tree-haml.
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

Rakefile

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+# frozen_string_literal: true
+
+require "bundler/gem_tasks"
+require "rake/testtask"
+
+Rake::TestTask.new(:test) do |t|
+  t.libs << "test"
+  t.libs << "lib"
+  t.test_files = FileList["test/**/*_test.rb"]
+end
+
+task default: :test

bin/format

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+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require "bundler/setup"
+
+$:.unshift(File.expand_path("../lib", __dir__))
+require "syntax_tree/haml"
+
+puts SyntaxTree::Haml.format(ARGF.read)

bin/parse

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+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require "bundler/setup"
+
+$:.unshift(File.expand_path("../lib", __dir__))
+require "syntax_tree/haml"
+
+pp SyntaxTree::Haml.parse(ARGF.read)

lib/syntax_tree/haml.rb

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+# frozen_string_literal: true
+
+require "haml"
+require "syntax_tree"
+
+require "syntax_tree/haml/comment"
+require "syntax_tree/haml/doctype"
+require "syntax_tree/haml/filter"
+require "syntax_tree/haml/haml_comment"
+require "syntax_tree/haml/plain"
+require "syntax_tree/haml/root"
+require "syntax_tree/haml/script"
+require "syntax_tree/haml/silent_script"
+require "syntax_tree/haml/tag"
+
+class Haml::Parser::ParseNode
+  def format(q)
+    syntax_tree.format(q)
+  end
+
+  def pretty_print(q)
+    syntax_tree.pretty_print(q)
+  end
+
+  private
+
+  def syntax_tree
+    case type
+    when :comment then SyntaxTree::Haml::Comment.new(self)
+    when :doctype then SyntaxTree::Haml::Doctype.new(self)
+    when :filter then SyntaxTree::Haml::Filter.new(self)
+    when :haml_comment then SyntaxTree::Haml::HamlComment.new(self)
+    when :plain then SyntaxTree::Haml::Plain.new(self)
+    when :root then SyntaxTree::Haml::Root.new(self)
+    when :script then SyntaxTree::Haml::Script.new(self)
+    when :silent_script then SyntaxTree::Haml::SilentScript.new(self)
+    when :tag then SyntaxTree::Haml::Tag.new(self)
+    else
+      raise ArgumentError, "Unsupported type: #{type}"
+    end
+  end
+end
+
+class SyntaxTree < Ripper
+  module Haml
+    def self.parse(source)
+      ::Haml::Parser.new({}).call(source)
+    end
+
+    def self.format(source)
+      formatter = PP.new([])
+      parse(source).format(formatter)
+
+      formatter.flush
+      formatter.output.join
+    end
+
+    def self.with_children(node, q)
+      if node.children.empty?
+        q.group { yield }
+      else
+        q.group do
+          q.group { yield }
+          q.indent do
+            node.children.each do |child|
+              q.breakable(force: true)
+              child.format(q)
+            end
+          end
+        end
+      end
+    end
+  end
+end

lib/syntax_tree/haml/comment.rb

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+# frozen_string_literal: true
+
+class SyntaxTree < Ripper
+  module Haml
+    # https://haml.info/docs/yardoc/file.REFERENCE.html#html-comments-
+    class Comment
+      attr_reader :node
+
+      def initialize(node)
+        @node = node
+      end
+
+      def format(q)
+        Haml.with_children(node, q) do
+          q.text("/")
+          q.text("!") if node.value[:revealed]
+
+          if node.value[:conditional]
+            q.text(node.value[:conditional])
+          elsif node.value[:text]
+            q.text(" #{node.value[:text]}")
+          end
+        end
+      end
+
+      def pretty_print(q)
+        q.group(2, "(comment", ")") do
+          q.breakable
+
+          if node.value[:conditional]
+            q.text("conditional=")
+            q.pp(node.value[:conditional])
+          elsif node.value[:text]
+            q.text("text=")
+            q.pp(node.value[:text])
+          end
+
+          if node.value[:revealed]
+            q.breakable
+            q.text("revealed")
+          end
+
+          if node.children.any?
+            q.breakable
+            q.text("children=")
+            q.pp(node.children)
+          end
+        end
+      end
+    end
+  end
+end