remove unnecessary tags

.github/workflows/liquid.yml

@@ -6,12 +6,12 @@ jobs:
     strategy:
       matrix:
         entry:
-          - { ruby: 2.7, allowed-failure: false } # minimum supported
+          - { ruby: 2.5, allowed-failure: false } # minimum supported
           - { ruby: 3.1, allowed-failure: false } # latest
           - { ruby: ruby-head, allowed-failure: true }
     name: test (${{ matrix.entry.ruby }})
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.entry.ruby }}
@@ -26,7 +26,7 @@ jobs:
   memory_profile:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 2.7

.rubocop.yml

@@ -10,7 +10,7 @@ Performance:
   Enabled: true
 
 AllCops:
-  TargetRubyVersion: 2.7
+  TargetRubyVersion: 2.5
   NewCops: disable
   Exclude:
     - 'vendor/bundle/**/*'

.rubocop_todo.yml

@@ -1,74 +1,27 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2022-05-18 19:25:47 UTC using RuboCop version 1.29.1.
+# on 2020-12-11 18:53:41 UTC using RuboCop version 1.6.1.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: TreatCommentsAsGroupSeparators, ConsiderPunctuation, Include.
-# Include: **/*.gemspec
-Gemspec/OrderedDependencies:
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: runtime_error, standard_error
+Lint/InheritException:
   Exclude:
-    - 'liquid.gemspec'
+    - 'lib/liquid/interrupts.rb'
 
-# Offense count: 6
-# This cop supports safe auto-correction (--auto-correct).
-Layout/ClosingHeredocIndentation:
-  Exclude:
-    - 'test/integration/tags/for_tag_test.rb'
-
-# Offense count: 34
-# This cop supports safe auto-correction (--auto-correct).
-Layout/EmptyLineAfterGuardClause:
-  Exclude:
-    - 'lib/liquid/block.rb'
-    - 'lib/liquid/block_body.rb'
-    - 'lib/liquid/context.rb'
-    - 'lib/liquid/drop.rb'
-    - 'lib/liquid/lexer.rb'
-    - 'lib/liquid/parser.rb'
-    - 'lib/liquid/profiler/hooks.rb'
-    - 'lib/liquid/standardfilters.rb'
-    - 'lib/liquid/tags/for.rb'
-    - 'lib/liquid/tags/if.rb'
-    - 'lib/liquid/utils.rb'
-    - 'lib/liquid/variable.rb'
-    - 'lib/liquid/variable_lookup.rb'
-    - 'performance/shopify/money_filter.rb'
-    - 'performance/shopify/paginate.rb'
+# Offense count: 113
+# Cop supports --auto-correct.
+# Configuration parameters: AutoCorrect, AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
+# URISchemes: http, https
+Layout/LineLength:
+  Max: 260
 
 # Offense count: 8
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: AllowAliasSyntax, AllowedMethods.
-# AllowedMethods: alias_method, public, protected, private
-Layout/EmptyLinesAroundAttributeAccessor:
-  Exclude:
-    - 'lib/liquid/template.rb'
-    - 'test/integration/filter_test.rb'
-    - 'test/integration/tags/include_tag_test.rb'
-    - 'test/unit/strainer_template_unit_test.rb'
-
-# Offense count: 17
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, IndentationWidth.
-# SupportedStyles: aligned, indented
-Layout/LineEndStringConcatenationIndentation:
-  Exclude:
-    - 'test/integration/tags/for_tag_test.rb'
-    - 'test/integration/tags/increment_tag_test.rb'
-
-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, IndentationWidth.
-# SupportedStyles: aligned, indented
-Layout/MultilineOperationIndentation:
-  Exclude:
-    - 'lib/liquid/expression.rb'
-
-# Offense count: 9
 Lint/MissingSuper:
   Exclude:
     - 'lib/liquid/forloop_drop.rb'
@@ -80,7 +33,7 @@ Lint/MissingSuper:
     - 'test/integration/tags/for_tag_test.rb'
     - 'test/integration/tags/table_row_test.rb'
 
-# Offense count: 44
+# Offense count: 43
 Naming/ConstantName:
   Exclude:
     - 'lib/liquid.rb'
@@ -98,83 +51,7 @@ Naming/ConstantName:
     - 'performance/shopify/paginate.rb'
     - 'test/integration/tags/include_tag_test.rb'
 
-# Offense count: 9
-# Configuration parameters: CheckIdentifiers, CheckConstants, CheckVariables, CheckStrings, CheckSymbols, CheckComments, CheckFilepaths, FlaggedTerms.
-Naming/InclusiveLanguage:
-  Exclude:
-    - 'lib/liquid/drop.rb'
-    - 'lib/liquid/parse_context.rb'
-    - 'test/integration/drop_test.rb'
-    - 'test/integration/tags/if_else_tag_test.rb'
-
 # Offense count: 2
 Style/ClassVars:
   Exclude:
     - 'lib/liquid/condition.rb'
-
-# Offense count: 3
-# This cop supports safe auto-correction (--auto-correct).
-Style/ExplicitBlockArgument:
-  Exclude:
-    - 'test/integration/context_test.rb'
-    - 'test/integration/tag/disableable_test.rb'
-    - 'test/integration/tags/for_tag_test.rb'
-
-# Offense count: 2982
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, ConsistentQuotesInMultiline.
-# SupportedStyles: single_quotes, double_quotes
-Style/StringLiterals:
-  Enabled: false
-
-# Offense count: 20
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: single_quotes, double_quotes
-Style/StringLiteralsInInterpolation:
-  Exclude:
-    - 'lib/liquid/condition.rb'
-    - 'lib/liquid/strainer_template.rb'
-    - 'lib/liquid/tag/disableable.rb'
-    - 'performance/shopify/shop_filter.rb'
-    - 'performance/shopify/tag_filter.rb'
-
-# Offense count: 6
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyleForMultiline.
-# SupportedStylesForMultiline: comma, consistent_comma, no_comma
-Style/TrailingCommaInArrayLiteral:
-  Exclude:
-    - 'example/server/example_servlet.rb'
-    - 'lib/liquid/condition.rb'
-    - 'test/integration/context_test.rb'
-    - 'test/integration/standard_filter_test.rb'
-    - 'test/unit/parse_tree_visitor_test.rb'
-
-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyleForMultiline.
-# SupportedStylesForMultiline: comma, consistent_comma, no_comma
-Style/TrailingCommaInHashLiteral:
-  Exclude:
-    - 'lib/liquid/expression.rb'
-
-# Offense count: 19
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, MinSize, WordRegex.
-# SupportedStyles: percent, brackets
-Style/WordArray:
-  Exclude:
-    - 'lib/liquid/tags/if.rb'
-    - 'liquid.gemspec'
-    - 'test/integration/assign_test.rb'
-    - 'test/integration/context_test.rb'
-    - 'test/integration/drop_test.rb'
-    - 'test/integration/standard_filter_test.rb'
-
-# Offense count: 117
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, AllowedPatterns, IgnoredPatterns.
-# URISchemes: http, https
-Layout/LineLength:
-  Max: 260

Gemfile

@@ -18,7 +18,8 @@ group :benchmark, :test do
 end
 
 group :test do
-  gem 'rubocop-shopify', '~> 2.7.0', require: false
+  gem 'rubocop', '~> 1.4', require: false
+  gem 'rubocop-shopify', '~> 1.0.7', require: false
   gem 'rubocop-performance', require: false
 
   platform :mri, :truffleruby do

History.md

@@ -1,25 +1,9 @@
 # Liquid Change Log
 
-## 5.4.0 (unreleased)
-
-### Breaking Changes
-* Drop support for end-of-life Ruby versions (2.5 and 2.6) (#1578) [Andy Waite]
-
-### Features
-* Allow `#` to be used as an inline comment tag (#1498) [CP Clermont]
-
-### Fixes
-* `PartialCache` now shares snippet cache with subcontexts by default (#1553) [Chris AtLee]
-* Hash registers no longer leak into subcontexts as static registers (#1564) [Chris AtLee]
-
-### Changed
-* Liquid::Context#registers now always returns a Liquid::Registers object, though supports the most used Hash functions for compatibility (#1553)
-
-## 5.3.0 2022-03-22
+## 5.3.0 (unreleased)
 
 ### Fixes
 * StandardFilter: Fix missing @context on iterations (#1525) [Thierry Joyal]
-* Fix warning about block and default value in `static_registers.rb` (#1531) [Peter Zhu]
 
 ### Deprecation
 * Condition#evaluate to require mandatory context argument in Liquid 6.0.0 (#1527) [Thierry Joyal]

README.md

@@ -63,13 +63,13 @@ when templates are invalid. You can enable this new parser like this:
 
 ```ruby
 Liquid::Template.error_mode = :strict # Raises a SyntaxError when invalid syntax is used
-Liquid::Template.error_mode = :warn # Adds strict errors to template.errors but continues as normal
+Liquid::Template.error_mode = :warn # Adds errors to template.errors but continues as normal
 Liquid::Template.error_mode = :lax # The default mode, accepts almost anything.
 ```
 
 If you want to set the error mode only on specific templates you can pass `:error_mode` as an option to `parse`:
 ```ruby
-Liquid::Template.parse(source, error_mode: :strict)
+Liquid::Template.parse(source, :error_mode => :strict)
 ```
 This is useful for doing things like enabling strict mode only in the theme editor.
 

lib/liquid.rb

@@ -29,7 +29,6 @@ module Liquid
   WhitespaceControl           = '-'
   TagStart                    = /\{\%/
   TagEnd                      = /\%\}/
-  TagName                     = /#|\w+/
   VariableSignature           = /\(?[\w\-\.\[\]]\)?/
   VariableSegment             = /[\w\-]/
   VariableStart               = /\{\{/
@@ -84,7 +83,8 @@ require 'liquid/tokenizer'
 require 'liquid/parse_context'
 require 'liquid/partial_cache'
 require 'liquid/usage'
-require 'liquid/registers'
+require 'liquid/register'
+require 'liquid/static_registers'
 require 'liquid/template_factory'
 
 # Load all the tags of the standard library

lib/liquid/block_body.rb

@@ -4,8 +4,8 @@ require 'English'
 
 module Liquid
   class BlockBody
-    LiquidTagToken      = /\A\s*(#{TagName})\s*(.*?)\z/o
-    FullToken           = /\A#{TagStart}#{WhitespaceControl}?(\s*)(#{TagName})(\s*)(.*?)#{WhitespaceControl}?#{TagEnd}\z/om
+    LiquidTagToken      = /\A\s*(\w+)\s*(.*?)\z/o
+    FullToken           = /\A#{TagStart}#{WhitespaceControl}?(\s*)(\w+)(\s*)(.*?)#{WhitespaceControl}?#{TagEnd}\z/om
     ContentOfVariable   = /\A#{VariableStart}#{WhitespaceControl}?(.*?)#{WhitespaceControl}?#{VariableEnd}\z/om
     WhitespaceOrNothing = /\A\s*\z/
     TAGSTART            = "{%"
@@ -35,9 +35,21 @@ module Liquid
       super
     end
 
+    # @public_docs
+    # @type tag
+    # @category theme
+    # @title liquid
+    # @summary
+    #   Allows you to write multiple tags within one set of delimiters.
+    # @description
+    #   Use the [`echo`](/api/liquid/tags/theme-tags#echo) tag to output an expression within a `liquid` tag.
+    # @syntax
+    #   {% liquid
+    #     statement
+    #   %}
     private def parse_for_liquid_tag(tokenizer, parse_context)
       while (token = tokenizer.shift)
-        unless token.empty? || token.match?(WhitespaceOrNothing)
+        unless token.empty? || token =~ WhitespaceOrNothing
           unless token =~ LiquidTagToken
             # line isn't empty but didn't match tag syntax, yield and let the
             # caller raise a syntax error
@@ -150,7 +162,7 @@ module Liquid
           end
           parse_context.trim_whitespace = false
           @nodelist << token
-          @blank &&= token.match?(WhitespaceOrNothing)
+          @blank &&= !!(token =~ WhitespaceOrNothing)
         end
         parse_context.line_number = tokenizer.line_number
       end

lib/liquid/context.rb

@@ -28,7 +28,7 @@ module Liquid
 
       @static_environments = [static_environments].flat_map(&:freeze).freeze
       @scopes              = [(outer_scope || {})]
-      @registers           = registers.is_a?(Registers) ? registers : Registers.new(registers)
+      @registers           = registers
       @errors              = []
       @partial             = false
       @strict_variables    = false
@@ -39,10 +39,6 @@ module Liquid
       @global_filter       = nil
       @disabled_tags       = {}
 
-      @registers.static[:cached_partials] ||= {}
-      @registers.static[:file_system] ||= Liquid::Template.file_system
-      @registers.static[:template_factory] ||= Liquid::TemplateFactory.new
-
       self.exception_renderer = Template.default_exception_renderer
       if rethrow_errors
         self.exception_renderer = Liquid::RAISE_EXCEPTION_LAMBDA
@@ -144,7 +140,7 @@ module Liquid
       self.class.build(
         resource_limits: resource_limits,
         static_environments: static_environments,
-        registers: Registers.new(registers)
+        registers: StaticRegisters.new(registers)
       ).tap do |subcontext|
         subcontext.base_scope_depth   = base_scope_depth + 1
         subcontext.exception_renderer = exception_renderer

lib/liquid/forloop_drop.rb

@@ -1,11 +1,6 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type object
-  # @liquid_name forloop
-  # @liquid_summary
-  #   Information about a parent [`for` loop](/api/liquid/tags#for).
   class ForloopDrop < Drop
     def initialize(name, length, parentloop)
       @name       = name
@@ -14,71 +9,33 @@ module Liquid
       @index      = 0
     end
 
-    # @liquid_public_docs
-    # @liquid_name length
-    # @liquid_summary
-    #   The total number of iterations in the loop.
-    # @liquid_return [number]
-    attr_reader :length
-
-    # @liquid_public_docs
-    # @liquid_name parentloop
-    # @liquid_summary
-    #   The parent `forloop` object.
-    # @liquid_description
-    #   If the current `for` loop isn't nested inside another `for` loop, then `nil` is returned.
-    # @liquid_return [forloop]
-    attr_reader :parentloop
+    attr_reader :length, :parentloop
 
     def name
       Usage.increment('forloop_drop_name')
       @name
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current iteration.
-    # @liquid_return [number]
     def index
       @index + 1
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current iteration.
-    # @liquid_return [number]
     def index0
       @index
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current iteration, in reverse order.
-    # @liquid_return [number]
     def rindex
       @length - @index
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current iteration, in reverse order.
-    # @liquid_return [number]
     def rindex0
       @length - @index - 1
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current iteration is the first. Returns `false` if not.
-    # @liquid_return [boolean]
     def first
       @index == 0
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current iteration is the last. Returns `false` if not.
-    # @liquid_return [boolean]
     def last
       @index == @length - 1
     end

lib/liquid/locales/en.yml

@@ -13,16 +13,15 @@
       for_invalid_attribute: "Invalid attribute in for loop. Valid attributes are limit and offset"
       if: "Syntax Error in tag 'if' - Valid syntax: if [expression]"
       include: "Error in tag 'include' - Valid syntax: include '[template]' (with|for) [object|collection]"
-      inline_comment_invalid: "Syntax error in tag '#' - Each line of comments must be prefixed by the '#' character"
+      unknown_tag: "Unknown tag '%{tag}'"
       invalid_delimiter: "'%{tag}' is not a valid delimiter for %{block_name} tags. use %{block_delimiter}"
-      render: "Syntax error in tag 'render' - Template name must be a quoted string"
-      table_row: "Syntax Error in 'table_row loop' - Valid syntax: table_row [item] in [collection] cols=3"
-      tag_never_closed: "'%{block_name}' tag was never closed"
-      tag_termination: "Tag '%{token}' was not properly terminated with regexp: %{tag_end}"
       unexpected_else: "%{block_name} tag does not expect 'else' tag"
       unexpected_outer_tag: "Unexpected outer '%{tag}' tag"
-      unknown_tag: "Unknown tag '%{tag}'"
+      tag_termination: "Tag '%{token}' was not properly terminated with regexp: %{tag_end}"
       variable_termination: "Variable '%{token}' was not properly terminated with regexp: %{tag_end}"
+      tag_never_closed: "'%{block_name}' tag was never closed"
+      table_row: "Syntax Error in 'table_row loop' - Valid syntax: table_row [item] in [collection] cols=3"
+      render: "Syntax error in tag 'render' - Template name must be a quoted string"
     argument:
       include: "Argument error in tag 'include' - Illegal template name"
     disabled:

lib/liquid/partial_cache.rb

@@ -3,16 +3,16 @@
 module Liquid
   class PartialCache
     def self.load(template_name, context:, parse_context:)
-      cached_partials = context.registers[:cached_partials]
+      cached_partials = (context.registers[:cached_partials] ||= {})
       cached = cached_partials[template_name]
       return cached if cached
 
-      file_system = context.registers[:file_system]
+      file_system = (context.registers[:file_system] ||= Liquid::Template.file_system)
       source      = file_system.read_template_file(template_name)
 
       parse_context.partial = true
 
-      template_factory = context.registers[:template_factory]
+      template_factory = (context.registers[:template_factory] ||= Liquid::TemplateFactory.new)
       template = template_factory.for(template_name)
 
       partial = template.parse(source, parse_context)

lib/liquid/register.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+module Liquid
+  class Register
+  end
+end

lib/liquid/standardfilters.rb

@@ -22,99 +22,66 @@ module Liquid
     )
     STRIP_HTML_TAGS = /<.*?>/m
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Returns the size of a string or array.
-    # @liquid_description
-    #   The size of a string is the number of characters that the string includes. The size of an array is the number of items
-    #   in the array.
-    # @liquid_syntax variable | size
-    # @liquid_return [number]
+    # Return the size of an array or of an string
     def size(input)
       input.respond_to?(:size) ? input.size : 0
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Converts a string to all lowercase characters.
-    # @liquid_syntax string | downcase
-    # @liquid_return [string]
+    # convert an input string to DOWNCASE
+    #
+    # @public_docs
+    # @type filter
+    # @summary Converts a string into lowercase.
+    # @category string
+    # @syntax {{ string | downcase }}
+    # @return string
     def downcase(input)
       input.to_s.downcase
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Converts a string to all uppercase characters.
-    # @liquid_syntax string | upcase
-    # @liquid_return [string]
+    # convert an input string to UPCASE
+    #
+    # @public_docs
+    # @type filter
+    # @summary Converts a string into uppercase.
+    # @category string
+    # @syntax {{ string | upcase }}
+    # @return string
     def upcase(input)
       input.to_s.upcase
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Capitalizes the first word in a string.
-    # @liquid_syntax string | capitalize
-    # @liquid_return [string]
+    # capitalize words in the input sentence
+    #
+    # @public_docs
+    # @type filter
+    # @summary Capitalizes the first word in a string.
+    # @category string
+    # @syntax {{ string | capitalize }}
+    # @return string
     def capitalize(input)
       input.to_s.capitalize
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Escapes a string.
-    # @liquid_syntax string | escape
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @summary Escapes a string.
+    # @category string
+    # @syntax {{ string | escape }}
+    # @return string
     def escape(input)
       CGI.escapeHTML(input.to_s) unless input.nil?
     end
     alias_method :h, :escape
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Escapes a string without changing characters that have already been escaped.
-    # @liquid_syntax string | escape_once
-    # @liquid_return [string]
     def escape_once(input)
       input.to_s.gsub(HTML_ESCAPE_ONCE_REGEXP, HTML_ESCAPE)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Converts any URL-unsafe characters in a string to the
-    #   [percent-encoded](https://developer.mozilla.org/en-US/docs/Glossary/percent-encoding) equivalent.
-    # @liquid_description
-    #   > Note:
-    #   > Spaces are converted to a `+` character, instead of a percent-encoded character.
-    # @liquid_syntax string | url_encode
-    # @liquid_return [string]
     def url_encode(input)
       CGI.escape(input.to_s) unless input.nil?
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Decodes any [percent-encoded](https://developer.mozilla.org/en-US/docs/Glossary/percent-encoding) characters
-    #   in a string.
-    # @liquid_syntax string | url_decode
-    # @liquid_return [string]
     def url_decode(input)
       return if input.nil?
 
@@ -124,64 +91,53 @@ module Liquid
       result
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Encodes a string to [Base64 format](https://developer.mozilla.org/en-US/docs/Glossary/Base64).
-    # @liquid_syntax string | base64_encode
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @title base64_encode
+    # @summary Encodes a string into Base64.
+    # @category string
+    # @syntax {{ string | base64_encode }}
+    # @return string
     def base64_encode(input)
       Base64.strict_encode64(input.to_s)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Decodes a string in [Base64 format](https://developer.mozilla.org/en-US/docs/Glossary/Base64).
-    # @liquid_syntax string | base64_decode
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @summary Decodes a string from Base64.
+    # @category string
+    # @syntax {{ string | base64_decode }}
+    # @return string
     def base64_decode(input)
       Base64.strict_decode64(input.to_s)
     rescue ::ArgumentError
       raise Liquid::ArgumentError, "invalid base64 provided to base64_decode"
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Encodes a string to URL-safe [Base64 format](https://developer.mozilla.org/en-US/docs/Glossary/Base64).
-    # @liquid_syntax string | base64_url_safe_encode
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @summary Encodes a string into URL-safe Base64
+    # @category string
+    # @syntax {{ string | base64_url_safe_encode }}
+    # @return string
+    # @description
+    #   To produce URL-safe Base64, this filter uses `-`` and `_`` in place of `+`` and `/``.
     def base64_url_safe_encode(input)
       Base64.urlsafe_encode64(input.to_s)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Decodes a string in URL-safe [Base64 format](https://developer.mozilla.org/en-US/docs/Glossary/Base64).
-    # @liquid_syntax string | base64_url_safe_decode
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @summary Decodes a string from URL-safe Base64.
+    # @category string
+    # @syntax {{ string | base64_url_safe_decode }}
+    # @return string
     def base64_url_safe_decode(input)
       Base64.urlsafe_decode64(input.to_s)
     rescue ::ArgumentError
       raise Liquid::ArgumentError, "invalid base64 provided to base64_url_safe_decode"
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Returns a substring or series of array items, starting at a given 0-based index.
-    # @liquid_description
-    #   By default, the substring has a length of one character, and the array series has one array item. However, you can
-    #   provide a second parameter to specify the number of characters or array items.
-    # @liquid_syntax string | slice
-    # @liquid_return [string]
     def slice(input, offset, length = nil)
       offset = Utils.to_integer(offset)
       length = length ? Utils.to_integer(length) : 1
@@ -193,16 +149,34 @@ module Liquid
       end
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Truncates a string down to a given number of characters.
-    # @liquid_description
-    #   If the specified number of characters is less than the length of the string, then an ellipsis (`...`) is appended to
-    #   the truncated string. The ellipsis is included in the character count of the truncated string.
-    # @liquid_syntax string | truncate: number
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @category string
+    # @summary
+    #   Truncates a string down to a specified number of characters.
+    # @description
+    #   By default, an ellipsis (`...`)
+    #   is appended to the truncated string.
+    #
+    #   > Tip:
+    #   > The number of characters in both default and custom ellipses is included in the
+    #   > character count for the truncated string. For example, if you want to truncate a string
+    #   > down to ten characters and use the default ellipsis (`...`), then you should set the
+    #   > character count parameter to `13`.
+    #
+    #   ### Custom ellipsis
+    #
+    #   The `truncate` filter accepts an optional parameter to specify a custom ellipsis to be
+    #   appended to the truncated string.
+    #
+    #   ### No ellipsis
+    #
+    #   If you don't want an ellipsis appended to your truncated string, then you can set the
+    #   ellipsis parameter to a blank string (`''`).
+    # @syntax {{ string | truncate: character_count, ellipsis }}
+    # @required_param character_count [number] The number of characters to include in the truncated string. Includes the characters in the ellipsis.
+    # @optional_param ellipsis [string] The format of the ellipsis appended to the truncated string. Default is `...`. Pass a blank string (`''`) to remove the ellipsis completely.
+    # @return string
     def truncate(input, length = 50, truncate_string = "...")
       return if input.nil?
       input_str = input.to_s
@@ -216,20 +190,27 @@ module Liquid
       input_str.length > length ? input_str[0...l].concat(truncate_string_str) : input_str
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Truncates a string down to a given number of words.
-    # @liquid_description
-    #   If the specified number of words is less than the number of words in the string, then an ellipsis (`...`) is appended to
-    #   the truncated string.
+    # @public_docs
+    # @type filter
+    # @category string
+    # @summary
+    #   Truncates a string down to a specified number of words.
+    # @description
+    # By default, an ellipsis (`...`) is appended to the truncated string.
     #
-    #   > Caution:
-    #   > HTML tags are treated as words, so you should strip any HTML from truncated content. If you don't strip HTML, then
-    #   > closing HTML tags can be removed, which can result in unexpected behavior.
-    # @liquid_syntax string | truncatewords: number
-    # @liquid_return [string]
+    #   ### Custom ellipsis
+    #
+    #   The `truncate` filter accepts an optional parameter to specify a custom ellipsis to be
+    #   appended to the truncated string.
+    #
+    #   ### No ellipsis
+    #
+    #   If you don't want an ellipsis appended to your truncated string, then you can set the
+    #   ellipsis parameter to a blank string (`''`).
+    # @syntax {{ string | truncatewords: word_count, ellipsis }}
+    # @required_param word_count [number] The number of words to include in the truncated string. Includes the characters in the ellipsis.
+    # @optional_param ellipsis [string] The format of the ellipsis appended to the truncated string. Default is `...`. Pass a blank string (`''`) to remove the ellipsis completely.
+    # @return string
     def truncatewords(input, words = 15, truncate_string = "...")
       return if input.nil?
       input = input.to_s
@@ -249,57 +230,55 @@ module Liquid
       wordlist.join(" ").concat(truncate_string.to_s)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Splits a string into an array of substrings based on a given separator.
-    # @liquid_syntax string | split: string
-    # @liquid_return [array[string]]
+    # Split input string into an array of substrings separated by given pattern.
+    #
+    # Example:
+    #   <div class="summary">{{ post | split '//' | first }}</div>
+    #
     def split(input, pattern)
       input.to_s.split(pattern.to_s)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all whitespace from the left and right of a string.
-    # @liquid_syntax string | strip
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @category string
+    # @summary
+    #   Strips all whitespace, such as tabs, spaces, and newlines, from the left and right sides of a string.
+    # @syntax {{ string | strip }}
+    # @return string
     def strip(input)
       input.to_s.strip
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all whitespace from the left of a string.
-    # @liquid_syntax string | lstrip
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @category string
+    # @summary
+    #   Strips all whitespace, such as tabs, spaces, and newlines, from the left side of a string.
+    # @syntax {{ string | lstrip }}
+    # @return string
     def lstrip(input)
       input.to_s.lstrip
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all whitespace from the right of a string.
-    # @liquid_syntax string | rstrip
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @category string
+    # @summary
+    #   Strips all whitespace, such as tabs, spaces, and newlines, from the right side of a string.
+    # @syntax {{ string | rstrip }}
+    # @return string
     def rstrip(input)
       input.to_s.rstrip
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
+    # @public_docs
+    # @type filter
+    # @category string
+    # @summary
     #   Strips all HTML tags from a string.
-    # @liquid_syntax string | strip_html
-    # @liquid_return [string]
+    # @syntax {{ string | strip_html }}
+    # @return string
     def strip_html(input)
       empty  = ''
       result = input.to_s.gsub(STRIP_HTML_BLOCKS, empty)
@@ -307,35 +286,36 @@ module Liquid
       result
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Strips all newline characters (line breaks) from a string.
-    # @liquid_syntax string | strip_newlines
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @category string
+    # @summary
+    #   Strips all line breaks and newlines from a string.
+    # @syntax {{ string | strip_newlines }}
+    # @return string
     def strip_newlines(input)
       input.to_s.gsub(/\r?\n/, '')
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Combines all of the items in an array into a single string, separated by a space.
-    # @liquid_syntax array | join
-    # @liquid_return [string]
+    # @public_docs
+    # @type filter
+    # @category array
+    # @summary Joins the elements in an array. The result is a single string.
+    # @syntax {{ array | join: ', ' }}
+    # @required_param delimiter [string] The separator to join the array elements with.
+    # @return string
     def join(input, glue = ' ')
       InputIterator.new(input, context).join(glue)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Sorts the items in an array in case-sensitive alphabetical, or numerical, order.
-    # @liquid_syntax array | sort
-    # @liquid_return [array[untyped]]
+    # @public_docs
+    # @type filter
+    # @category array
+    # @summary Sorts the elements of an array.
+    # @description The order of the sorted array is case-sensitive.
+    # @syntax {{ array | sort: property }}
+    # @optional_param property [string] The property of the element to sort by.
+    # @return array
     def sort(input, property = nil)
       ary = InputIterator.new(input, context)
 
@@ -354,13 +334,8 @@ module Liquid
       end
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Sorts the items in an array in case-insensitive alphabetical, or numerical, order.
-    # @liquid_syntax array | sort_natural
-    # @liquid_return [array[untyped]]
+    # Sort elements of an array ignoring case if strings
+    # provide optional property with which to sort an array of hashes or drops
     def sort_natural(input, property = nil)
       ary = InputIterator.new(input, context)
 
@@ -379,15 +354,8 @@ module Liquid
       end
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Filters an array to include only items with a specific property value.
-    # @liquid_description
-    #   This requires you to provide both the property name and the associated value.
-    # @liquid_syntax array | where: string, string
-    # @liquid_return [array[untyped]]
+    # Filter the elements of an array to those with a certain property value.
+    # By default the target is any truthy value.
     def where(input, property, target_value = nil)
       ary = InputIterator.new(input, context)
 
@@ -414,13 +382,8 @@ module Liquid
       end
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Removes any duplicate items in an array.
-    # @liquid_syntax array | uniq
-    # @liquid_return [array[untyped]]
+    # Remove duplicate elements from an array
+    # provide optional property with which to determine uniqueness
     def uniq(input, property = nil)
       ary = InputIterator.new(input, context)
 
@@ -440,25 +403,24 @@ module Liquid
       end
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Reverses the order of the items in an array.
-    # @liquid_syntax array | reverse
-    # @liquid_return [array[untyped]]
+    # @public_docs
+    # @type tag
+    # @category array
+    # @summary Reverses the order of the items in an array.
+    # @syntax {{ array | reverse }}
+    # @return array
     def reverse(input)
       ary = InputIterator.new(input, context)
       ary.reverse
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Creates an array of values from a specific property of the items in an array.
-    # @liquid_syntax array | map: string
-    # @liquid_return [array[untyped]]
+    # @public_docs
+    # @type tag
+    # @category array
+    # @summary Accepts an array element's property as a parameter and creates an array out of the property value for each array element.
+    # @required_param property [string] The property to extract from the element.
+    # @syntax {{ array | map: 'property' }}
+    # @return array
     def map(input, property)
       InputIterator.new(input, context).map do |e|
         e = e.call if e.is_a?(Proc)
@@ -474,13 +436,8 @@ module Liquid
       raise_property_error(property)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Removes any `nil` items from an array.
-    # @liquid_syntax array | compact
-    # @liquid_return [array[untyped]]
+    # Remove nils within an array
+    # provide optional property with which to check for nil
     def compact(input, property = nil)
       ary = InputIterator.new(input, context)
 
@@ -500,35 +457,24 @@ module Liquid
       end
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Replaces any instance of a substring inside a string with a given string.
-    # @liquid_syntax string | replace: string, string
-    # @liquid_return [string]
+    # @public_docs
+    # @summary Replaces all occurrences of a string with a substring.
+    # @type filter
+    # @category string
+    # @syntax {{ string | replace: original_string, replacement_string }}
+    # @required_param original_string [string] The string to replace.
+    # @required_param replacement_string [string] The replacement string.
+    # @return string
     def replace(input, string, replacement = '')
       input.to_s.gsub(string.to_s, replacement.to_s)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Replaces the first instance of a substring inside a string with a given string.
-    # @liquid_syntax string | replace_first: string, string
-    # @liquid_return [string]
+    # Replace the first occurrences of a string with another
     def replace_first(input, string, replacement = '')
       input.to_s.sub(string.to_s, replacement.to_s)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Replaces the last instance of a substring inside a string with a given string.
-    # @liquid_syntax string | replace_last: string, string
-    # @liquid_return [string]
+    # Replace the last occurrences of a string with another
     def replace_last(input, string, replacement)
       input = input.to_s
       string = string.to_s
@@ -543,61 +489,56 @@ module Liquid
       output
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Removes any instance of a substring inside a string.
-    # @liquid_syntax string | remove: string
-    # @liquid_return [string]
+    # @public_docs
+    # @summary Removes a substring from a string.
+    # @type filter
+    # @category string
+    # @syntax {{ string | remove: substring }}
+    # @required_param substring [string] The substring to remove from the string.
+    # @return string
     def remove(input, string)
       replace(input, string, '')
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Removes the first instance of a substring inside a string.
-    # @liquid_syntax string | remove_first: string
-    # @liquid_return [string]
+    # @public_docs
+    # @summary Removes the first occurrences of a substring.
+    # @type filter
+    # @category string
+    # @syntax {{ string | remove_first: substring }}
+    # @required_param substring [string] The substring to remove from the string.
+    # @return string
     def remove_first(input, string)
       replace_first(input, string, '')
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Removes the last instance of a substring inside a string.
-    # @liquid_syntax string | remove_last: string
-    # @liquid_return [string]
+    # remove the last occurences of a substring
     def remove_last(input, string)
       replace_last(input, string, '')
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Adds a given string to the end of a string.
-    # @liquid_syntax string | append: string
-    # @liquid_return [string]
+    # add one string to another
+    #
+    # @public_docs
+    # @type filter
+    # @summary Appends characters to a string.
+    # @category string
+    # @syntax {{ string | append: to_append }}
+    # @required_param to_append [string] characters to append to the original string
+    # @return string
     def append(input, string)
       input.to_s + string.to_s
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Concatenates (combines) two arrays.
-    # @liquid_description
-    #   > Note:
-    #   > The `concat` filter won't filter out duplicates. If you want to remove duplicates, then you need to use the
-    #   > [`uniq` filter](/api/liquid/filters#uniq).
-    # @liquid_syntax array | concat: array
-    # @liquid_return [array[untyped]]
+    # @public_docs
+    # @type filter
+    # @category array
+    # @summary Concatenates (combines) an array with another array.
+    # @description
+    #   The resulting array contains all the elements of the original arrays.
+    #   `concat` won't remove duplicate entries from the concatenated array unless you also use the [`uniq`](/api/liquid/filters/array-filters#uniq) filter.
+    # @syntax {{ first_array | concat: second_array }}
+    # @required_param second_array [array] The array to concatenate with the primary array.
+    # @return array
     def concat(input, array)
       unless array.respond_to?(:to_ary)
         raise ArgumentError, "concat filter requires an array argument"
@@ -605,24 +546,18 @@ module Liquid
       InputIterator.new(input, context).concat(array)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Adds a given string to the beginning of a string.
-    # @liquid_syntax string | prepend: string
-    # @liquid_return [string]
+    # @public_docs
+    # @summary Prepends a string to another string.
+    # @type filter
+    # @category string
+    # @syntax {{ string | prepend: additional_string }}
+    # @required_param  additional_string [string] The string to prepend to the original string.
+    # @return string
     def prepend(input, string)
       string.to_s + input.to_s
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category string
-    # @liquid_summary
-    #   Converts newlines (`\n`) in a string to HTML line breaks (`<br>`).
-    # @liquid_syntax string | newline_to_br
-    # @liquid_return [string]
+    # Add <br /> tags in front of all newlines in input string
     def newline_to_br(input)
       input.to_s.gsub(/\r?\n/, "<br />\n")
     end
@@ -666,106 +601,101 @@ module Liquid
       date.strftime(format.to_s)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Returns the first item in an array.
-    # @liquid_syntax array | first
-    # @liquid_return [untyped]
+    # @public_docs
+    # @type filter
+    # @category array
+    # @summary Returns the first element of an array.
+    # @syntax {{ array | first }}
     def first(array)
       array.first if array.respond_to?(:first)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category array
-    # @liquid_summary
-    #   Returns the last item in an array.
-    # @liquid_syntax array | last
-    # @liquid_return [untyped]
+    # @public_docs
+    # @type filter
+    # @category array
+    # @summary Returns the last element of an array, or the last character inside of a string.
+    # @syntax {{ array | last }}
     def last(array)
       array.last if array.respond_to?(:last)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Returns the absolute value of a number.
-    # @liquid_syntax number | abs
-    # @liquid_return [number]
+    # @public_docs
+    # @syntax {{ number | abs }}
+    # @summary Returns the absolute value of a number.
+    # @type filter
+    # @category math
+    # @return number
+    # @description
+    #   `abs` will also work on a string if the string only contains a number.
     def abs(input)
       result = Utils.to_number(input).abs
       result.is_a?(BigDecimal) ? result.to_f : result
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Adds two numbers.
-    # @liquid_syntax number | plus: number
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Adds a number to an output.
+    # @type filter
+    # @category math
+    # @syntax {{ number | plus: number }}
+    # @required_param number [number] The number to add to the original number.
+    # @return number
     def plus(input, operand)
       apply_operation(input, operand, :+)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Subtracts a given number from another number.
-    # @liquid_syntax number | minus: number
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Subtracts a number from an output.
+    # @type filter
+    # @category math
+    # @syntax {{ number | minus: number }}
+    # @return number
     def minus(input, operand)
       apply_operation(input, operand, :-)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Multiplies a number by a given number.
-    # @liquid_syntax number | times: number
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Multiplies an output by a number.
+    # @type filter
+    # @category math
+    # @syntax {{ number | times: number }}
+    # @required_param number [number] The number to multiply the original number by.
+    # @return number
     def times(input, operand)
       apply_operation(input, operand, :*)
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Divides a number by a given number.
-    # @liquid_syntax number | divided_by: number
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Divides an output by a number. The output is rounded down to the nearest integer.
+    # @type filter
+    # @category math
+    # @syntax {{ number | divided_by: number }}
+    # @return number
     def divided_by(input, operand)
       apply_operation(input, operand, :/)
     rescue ::ZeroDivisionError => e
       raise Liquid::ZeroDivisionError, e.message
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Returns the remainder of dividing a number by a given number.
-    # @liquid_syntax number | modulo: number
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Divides an output by a number and returns the remainder.
+    # @type filter
+    # @category math
+    # @syntax {{ number | modulo: number }}
+    # @required_param number [number] The number to divide the original number by.
+    # @return number
     def modulo(input, operand)
       apply_operation(input, operand, :%)
     rescue ::ZeroDivisionError => e
       raise Liquid::ZeroDivisionError, e.message
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Rounds a number to the nearest integer.
-    # @liquid_syntax number | round
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Rounds the output to the nearest integer or specified number of decimals.
+    # @type filter
+    # @category math
+    # @syntax {{ number | round }}
+    # @optional_param decimals [number] The number of decimal places to round to.
+    # @return number
     def round(input, n = 0)
       result = Utils.to_number(input).round(Utils.to_number(n))
       result = result.to_f if result.is_a?(BigDecimal)
@@ -775,39 +705,37 @@ module Liquid
       raise Liquid::FloatDomainError, e.message
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Rounds a number up to the nearest integer.
-    # @liquid_syntax number | ceil
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Rounds an output up to the nearest integer.
+    # @type filter
+    # @category math
+    # @syntax {{ number | ceil }}
+    # @return number
     def ceil(input)
       Utils.to_number(input).ceil.to_i
     rescue ::FloatDomainError => e
       raise Liquid::FloatDomainError, e.message
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Rounds a number down to the nearest integer.
-    # @liquid_syntax number | floor
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Rounds an output down to the nearest integer.
+    # @type filter
+    # @category math
+    # @syntax {{ number | floor }}
+    # @return number
     def floor(input)
       Utils.to_number(input).floor.to_i
     rescue ::FloatDomainError => e
       raise Liquid::FloatDomainError, e.message
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Limits a number to a minimum value.
-    # @liquid_syntax number | at_least
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Limits a number to a minimum value.
+    # @type filter
+    # @category math
+    # @syntax {{ number | at_least: number }}
+    # @required_param number [number] The minimum valid value.
+    # @return number
     def at_least(input, n)
       min_value = Utils.to_number(n)
 
@@ -816,13 +744,13 @@ module Liquid
       result.is_a?(BigDecimal) ? result.to_f : result
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category math
-    # @liquid_summary
-    #   Limits a number to a maximum value.
-    # @liquid_syntax number | at_most
-    # @liquid_return [number]
+    # @public_docs
+    # @summary Limits a number to a maximum value.
+    # @type filter
+    # @category math
+    # @syntax {{ number | at_most: number }}
+    # @required_param number [number] The maximum valid value.
+    # @return number
     def at_most(input, n)
       max_value = Utils.to_number(n)
 
@@ -831,18 +759,16 @@ module Liquid
       result.is_a?(BigDecimal) ? result.to_f : result
     end
 
-    # @liquid_public_docs
-    # @liquid_type filter
-    # @liquid_category default
-    # @liquid_summary
-    #   Sets a default value for any variable whose value is one of the following:
+    # Set a default value when the input is nil, false or empty
+    #
+    # Example:
+    #    {{ product.title | default: "No Title" }}
+    #
+    # Use `allow_false` when an input should only be tested against nil or empty and not false.
+    #
+    # Example:
+    #    {{ product.title | default: "No Title", allow_false: true }}
     #
-    #   - [`empty`](/api/liquid/basics#empty)
-    #   - [`false`](/api/liquid/basics#truthy-and-falsy)
-    #   - [`nil`](/api/liquid/basics#nil)
-    # @liquid_syntax variable | default: variable
-    # @liquid_return [untyped]
-    # @liquid_optional_param allow_false [boolean] Whether to use false values instead of the default.
     def default(input, default_value = '', options = {})
       options = {} unless options.is_a?(Hash)
       false_check = options['allow_false'] ? input.nil? : !Liquid::Utils.to_liquid_value(input)

lib/liquid/static_registers.rb

@@ -1,35 +1,35 @@
 # frozen_string_literal: true
 
 module Liquid
-  class Registers
+  class StaticRegisters
     attr_reader :static
 
     def initialize(registers = {})
-      @static = registers.is_a?(Registers) ? registers.static : registers
-      @changes = {}
+      @static    = registers.is_a?(StaticRegisters) ? registers.static : registers
+      @registers = {}
     end
 
     def []=(key, value)
-      @changes[key] = value
+      @registers[key] = value
     end
 
     def [](key)
-      if @changes.key?(key)
-        @changes[key]
+      if @registers.key?(key)
+        @registers[key]
       else
         @static[key]
       end
     end
 
     def delete(key)
-      @changes.delete(key)
+      @registers.delete(key)
     end
 
     UNDEFINED = Object.new
 
     def fetch(key, default = UNDEFINED, &block)
-      if @changes.key?(key)
-        @changes.fetch(key)
+      if @registers.key?(key)
+        @registers.fetch(key)
       elsif default != UNDEFINED
         if block_given?
           @static.fetch(key, &block)
@@ -42,10 +42,7 @@ module Liquid
     end
 
     def key?(key)
-      @changes.key?(key) || @static.key?(key)
+      @registers.key?(key) || @static.key?(key)
     end
   end
-
-  # Alias for backwards compatibility
-  StaticRegisters = Registers
 end

lib/liquid/tablerowloop_drop.rb

@@ -1,11 +1,6 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type object
-  # @liquid_name tablerowloop
-  # @liquid_summary
-  #   Information about a parent [`tablerow` loop](/api/liquid/tags#tablerow).
   class TablerowloopDrop < Drop
     def initialize(length, cols)
       @length = length
@@ -15,92 +10,40 @@ module Liquid
       @index  = 0
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The total number of iterations in the loop.
-    # @liquid_return [number]
-    attr_reader :length
+    attr_reader :length, :col, :row
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current column.
-    # @liquid_return [number]
-    attr_reader :col
-
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of current row.
-    # @liquid_return [number]
-    attr_reader :row
-
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current iteration.
-    # @liquid_return [number]
     def index
       @index + 1
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current iteration.
-    # @liquid_return [number]
     def index0
       @index
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current column.
-    # @liquid_return [number]
     def col0
       @col - 1
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 1-based index of the current iteration, in reverse order.
-    # @liquid_return [number]
     def rindex
       @length - @index
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   The 0-based index of the current iteration, in reverse order.
-    # @liquid_return [number]
     def rindex0
       @length - @index - 1
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current iteration is the first. Returns `false` if not.
-    # @liquid_return [boolean]
     def first
       @index == 0
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current iteration is the last. Returns `false` if not.
-    # @liquid_return [boolean]
     def last
       @index == @length - 1
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current column is the first in the row. Returns `false` if not.
-    # @liquid_return [boolean]
     def col_first
       @col == 1
     end
 
-    # @liquid_public_docs
-    # @liquid_summary
-    #   Returns `true` if the current column is the last in the row. Returns `false` if not.
-    # @liquid_return [boolean]
     def col_last
       @col == @cols
     end

lib/liquid/tags/assign.rb

@@ -1,18 +1,14 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category variable
-  # @liquid_name assign
-  # @liquid_summary
-  #   Creates a new variable.
-  # @liquid_description
-  #   You can create variables of any [basic type](/api/liquid/basics#types), [object](/api/liquid/objects), or object property.
-  # @liquid_syntax
-  #   {% assign variable_name = value %}
-  # @liquid_syntax_keyword variable_name The name of the variable being created.
-  # @liquid_syntax_keyword value The value you want to assign to the variable.
+  # Assign sets a variable in your template.
+  #
+  #   {% assign foo = 'monkey' %}
+  #
+  # You can then use the variable later in the page.
+  #
+  #  {{ foo }}
+  #
   class Assign < Tag
     Syntax = /(#{VariableSignature}+)\s*=\s*(.*)\s*/om
 

lib/liquid/tags/break.rb

@@ -10,14 +10,6 @@ module Liquid
   #      {% endif %}
   #    {% endfor %}
   #
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name break
-  # @liquid_summary
-  #   Stops a [`for` loop](/api/liquid/tags#for) from iterating.
-  # @liquid_syntax
-  #   {% break %}
   class Break < Tag
     INTERRUPT = BreakInterrupt.new.freeze
 

lib/liquid/tags/capture.rb

@@ -1,20 +1,17 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category variable
-  # @liquid_name capture
-  # @liquid_summary
-  #   Creates a new variable with a string value.
-  # @liquid_description
-  #   You can create complex strings with Liquid logic and variables.
-  # @liquid_syntax
-  #   {% capture variable %}
-  #     value
+  # Capture stores the result of a block into a variable without rendering it inplace.
+  #
+  #   {% capture heading %}
+  #     Monkeys!
   #   {% endcapture %}
-  # @liquid_syntax_keyword variable The name of the variable being created.
-  # @liquid_syntax_keyword value The value you want to assign to the variable.
+  #   ...
+  #   <h1>{{ heading }}</h1>
+  #
+  # Capture is useful for saving content for use later in your template, such as
+  # in a sidebar or footer.
+  #
   class Capture < Block
     Syntax = /(#{VariableSignature}+)/o
 

lib/liquid/tags/case.rb

@@ -1,27 +1,27 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category conditional
-  # @liquid_name case
-  # @liquid_summary
-  #   Renders a specific expression depending on the value of a specific variable.
-  # @liquid_syntax
+  # @public_docs
+  # @title case
+  # @type tag
+  # @category controlflow
+  # @summary Creates a switch statement to execute a particular block of code when a variable has a specified value.
+  # @description
+  #   `case` initializes the switch statement, and `when` statements define the various conditions.
+  #
+  #   An optional `else` statement at the end of the case provides code to execute if none of the conditions are met.
+  # @syntax
   #   {% case variable %}
-  #     {% when first_value %}
-  #       first_expression
-  #     {% when second_value %}
-  #       second_expression
+  #     {% when value1 %}
+  #       statement1
+  #     {% when value2 %}
+  #       statement2
+  #     {% when value3 %}
+  #       statement3
+  #     ...
   #     {% else %}
-  #       third_expression
+  #       else_statement
   #   {% endcase %}
-  # @liquid_syntax_keyword variable The name of the variable you want to base your case statement on.
-  # @liquid_syntax_keyword first_value A specific value to check for.
-  # @liquid_syntax_keyword second_value A specific value to check for.
-  # @liquid_syntax_keyword first_expression An expression to be rendered when the variable's value matches `first_value`.
-  # @liquid_syntax_keyword second_expression An expression to be rendered when the variable's value matches `second_value`.
-  # @liquid_syntax_keyword third_expression An expression to be rendered when the variable's value has no match.
   class Case < Block
     Syntax     = /(#{QuotedFragment})/o
     WhenSyntax = /(#{QuotedFragment})(?:(?:\s+or\s+|\s*\,\s*)(#{QuotedFragment}.*))?/om

lib/liquid/tags/comment.rb

@@ -1,19 +1,17 @@
 # frozen_string_literal: true
-
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category syntax
-  # @liquid_name comment
-  # @liquid_summary
-  #   Prevents an expression from being rendered or output.
-  # @liquid_description
-  #   Any text inside `comment` tags won't be output, and any Liquid code won't be rendered.
-  # @liquid_syntax
+  # @public_docs
+  # @type tag
+  # @category theme
+  # @title comment
+  # @summary
+  #   Allows you to comment out parts of a Liquid file.
+  #   Any text within the opening and closing `comment` blocks won't be output,
+  #   and any Liquid code won't be executed.
+  # @syntax
   #   {% comment %}
-  #     content
+  #     statement
   #   {% endcomment %}
-  # @liquid_syntax_keyword content The content of the comment.
   class Comment < Block
     def render_to_output_buffer(_context, output)
       output

lib/liquid/tags/continue.rb

@@ -1,14 +1,15 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name continue
-  # @liquid_summary
-  #   Causes a [`for` loop](/api/liquid/tags#for) to skip to the next iteration.
-  # @liquid_syntax
-  #   {% continue %}
+  # Continue tag to be used to break out of a for loop.
+  #
+  # == Basic Usage:
+  #    {% for item in collection %}
+  #      {% if item.condition %}
+  #        {% continue %}
+  #      {% endif %}
+  #    {% endfor %}
+  #
   class Continue < Tag
     INTERRUPT = ContinueInterrupt.new.freeze
 

lib/liquid/tags/cycle.rb

@@ -1,19 +1,31 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name cycle
-  # @liquid_summary
-  #   Loops through a group of strings and outputs them one at a time for each iteration of a [`for` loop](/api/liquid/tags#for).
-  # @liquid_description
-  #   The `cycle` tag must be used inside a `for` loop.
+  # Cycle is usually used within a loop to alternate between values, like colors or DOM classes.
   #
-  #   > Tip:
-  #   > Use the `cycle` tag to output text in a predictable pattern. For example, to apply odd/even classes to rows in a table.
-  # @liquid_syntax
-  #   {% cycle string, string, ... %}
+  #   {% for item in items %}
+  #     <div class="{% cycle 'red', 'green', 'blue' %}"> {{ item }} </div>
+  #   {% end %}
+  #
+  #    <div class="red"> Item one </div>
+  #    <div class="green"> Item two </div>
+  #    <div class="blue"> Item three </div>
+  #    <div class="red"> Item four </div>
+  #    <div class="green"> Item five</div>
+  #
+  # @public_docs
+  # @title cycle
+  # @type tag
+  # @category iteration
+  # @summary Loops through a group of strings and prints them in the order that they were passed as parameters.
+  # @description
+  #   Each time `cycle` is called, the next string that was passed as a parameter is printed.
+  #
+  #   `cycle` must be used within a `for` loop block.
+  # @syntax
+  #   {% for condition %}
+  #      {% cycle value1, value2 ... %}
+  #   {% endfor %}
   class Cycle < Tag
     SimpleSyntax = /\A#{QuotedFragment}+/o
     NamedSyntax  = /\A(#{QuotedFragment})\s*\:\s*(.*)/om

lib/liquid/tags/decrement.rb

@@ -1,23 +1,24 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category variable
-  # @liquid_name decrement
-  # @liquid_summary
-  #   Creates a new variable, with a default value of -1, that's decreased by 1 with each subsequent call.
-  # @liquid_description
-  #   Variables that are declared with `decrement` are unique to the [layout](/themes/architecture/layouts), [template](/themes/architecture/templates),
-  #   or [section](/themes/architecture/sections) file that they're created in. However, the variable is shared across
-  #   [snippets](/themes/architecture#snippets) included in the file.
+  # decrement is used in a place where one needs to insert a counter
+  #     into a template, and needs the counter to survive across
+  #     multiple instantiations of the template.
+  #     NOTE: decrement is a pre-decrement, --i,
+  #           while increment is post:      i++.
+  #
+  #     (To achieve the survival, the application must keep the context)
+  #
+  #     if the variable does not exist, it is created with value 0.
+
+  #   Hello: {% decrement variable %}
+  #
+  # gives you:
+  #
+  #    Hello: -1
+  #    Hello: -2
+  #    Hello: -3
   #
-  #   Similarly, variables that are created with `decrement` are independent from those created with [`assign`](/api/liquid/tags#assign)
-  #   and [`capture`](/api/liquid/tags#capture). However, `decrement` and [`increment`](/api/liquid/tags#increment) share
-  #   variables.
-  # @liquid_syntax
-  #   {% decrement variable_name %}
-  # @liquid_syntax_keyword variable_name The name of the variable being decremented.
   class Decrement < Tag
     def initialize(tag_name, markup, options)
       super

lib/liquid/tags/echo.rb

@@ -1,23 +1,16 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category syntax
-  # @liquid_name echo
-  # @liquid_summary
-  #   Outputs an expression.
-  # @liquid_description
-  #   Using the `echo` tag is the same as wrapping an expression in curly brackets (`{{` and `}}`). However, unlike the curly
-  #   bracket method, you can use the `echo` tag inside [`liquid` tags](/api/liquid/tags#liquid).
-  #
-  #   > Tip:
-  #   > You can use [filters](/api/liquid/filters) on expressions inside `echo` tags.
-  # @liquid_syntax
-  #   {% liquid
-  #     echo expression
-  #   %}
-  # @liquid_syntax_keyword expression The expression to be output.
+  # @public_docs
+  # @type tag
+  # @category theme
+  # @title echo
+  # @summary
+  #   Outputs an expression, or Liquid object, in the rendered HTML.
+  #   Works the same as wrapping an expression in double curly brace delimiters `{{ }}`.
+  #   Works inside the [`liquid`](/api/liquid/tags/theme-tags#liquid) tag and supports [filters](/api/liquid/filters).
+  # @syntax
+  #   {% echo 'string' %}
   class Echo < Tag
     attr_reader :variable
 

lib/liquid/tags/for.rb

@@ -1,29 +1,64 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name for
-  # @liquid_summary
-  #   Renders an expression for every item in an array.
-  # @liquid_description
-  #   You can do a maximum of 50 iterations with a `for` loop. If you need to iterate over more than 50 items, then use the
-  #   [`paginate` tag](/api/liquid/tags#paginate) to split the items over multiple pages.
+  # "For" iterates over an array or collection.
+  # Several useful variables are available to you within the loop.
   #
-  #   > Tip:
-  #   > Every `for` loop has an associated [`forloop` object](/api/liquid/objects#forloop) with information about the loop.
-  # @liquid_syntax
-  #   {% for variable in array %}
-  #     expression
-  #   {% endfor %}
-  # @liquid_syntax_keyword variable The current item in the array.
-  # @liquid_syntax_keyword array The array to iterate over.
-  # @liquid_syntax_keyword expression The expression to render for each iteration.
-  # @liquid_optional_param limit [number] The number of iterations to perform.
-  # @liquid_optional_param offset [number] The 1-based index to start iterating at.
-  # @liquid_optional_param range [untyped] A custom numeric range to iterate over.
-  # @liquid_optional_param reversed [untyped] Iterate in reverse order.
+  # == Basic usage:
+  #    {% for item in collection %}
+  #      {{ forloop.index }}: {{ item.name }}
+  #    {% endfor %}
+  #
+  # == Advanced usage:
+  #    {% for item in collection %}
+  #      <div {% if forloop.first %}class="first"{% endif %}>
+  #        Item {{ forloop.index }}: {{ item.name }}
+  #      </div>
+  #    {% else %}
+  #      There is nothing in the collection.
+  #    {% endfor %}
+  #
+  # You can also define a limit and offset much like SQL.  Remember
+  # that offset starts at 0 for the first item.
+  #
+  #    {% for item in collection limit:5 offset:10 %}
+  #      {{ item.name }}
+  #    {% end %}
+  #
+  #  To reverse the for loop simply use {% for item in collection reversed %} (note that the flag's spelling is different to the filter `reverse`)
+  #
+  # == Available variables:
+  #
+  # forloop.name:: 'item-collection'
+  # forloop.length:: Length of the loop
+  # forloop.index:: The current item's position in the collection;
+  #                 forloop.index starts at 1.
+  #                 This is helpful for non-programmers who start believe
+  #                 the first item in an array is 1, not 0.
+  # forloop.index0:: The current item's position in the collection
+  #                  where the first item is 0
+  # forloop.rindex:: Number of items remaining in the loop
+  #                  (length - index) where 1 is the last item.
+  # forloop.rindex0:: Number of items remaining in the loop
+  #                   where 0 is the last item.
+  # forloop.first:: Returns true if the item is the first item.
+  # forloop.last:: Returns true if the item is the last item.
+  # forloop.parentloop:: Provides access to the parent loop, if present.
+  #
+  # @public_docs
+  # @title for
+  # @type tag
+  # @category iteration
+  # @summary Repeatedly executes a block of code.
+  # @description
+  #    You can output a maximum of 50 results per page with `for` loops. In cases where there are more than 50 results,
+  #    use the [`paginate`](/api/liquid/tags/theme-tags#paginate) tag to split them across multiple pages.
+  #
+  #    For a full list of attributes available within a `for` loop, refer to the [`forloop`](/api/liquid/objects/for-loops) object.
+  # @syntax
+  #   {% for variable in iterable parameters %}
+  # @optional_param limit [number] Exit the `for` loop at the specified index.
+  # @optional_param offset [number] Start the `for` loop at the specified index.
   class For < Block
     Syntax = /\A(#{VariableSegment}+)\s+in\s+(#{QuotedFragment}+)\s*(reversed)?/o
 

lib/liquid/tags/if.rb

@@ -1,18 +1,17 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category conditional
-  # @liquid_name if
-  # @liquid_summary
-  #   Renders an expression if a specific condition is `true`.
-  # @liquid_syntax
-  #   {% if condition %}
-  #     expression
+  # If is the conditional block
+  #
+  # @public_docs
+  # @title if
+  # @type tag
+  # @category controlflow
+  # @summary Executes a block of code only if a certain condition is met (if the result is `truthy`).
+  # @syntax
+  #   {% if variable operator value %}
+  #     statement
   #   {% endif %}
-  # @liquid_syntax_keyword condition The condition to evaluate.
-  # @liquid_syntax_keyword expression The expression to render if the condition is met.
   class If < Block
     Syntax                  = /(#{QuotedFragment})\s*([=!<>a-z_]+)?\s*(#{QuotedFragment})?/o
     ExpressionsAndOperators = /(?:\b(?:\s?and\s?|\s?or\s?)\b|(?:\s*(?!\b(?:\s?and\s?|\s?or\s?)\b)(?:#{QuotedFragment}|\S+)\s*)+)/o

lib/liquid/tags/include.rb

@@ -1,22 +1,20 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category theme
-  # @liquid_name include
-  # @liquid_summary
-  #   Renders a [snippet](/themes/architecture#snippets).
-  # @liquid_description
-  #   Inside the snippet, you can access and alter variables that are [created](/api/liquid/tags#variable-tags) outside of the
-  #   snippet.
-  # @liquid_syntax
-  #   {% include 'filename' %}
-  # @liquid_syntax_keyword filename The name of the snippet to render, without the `.liquid` extension.
-  # @liquid_deprecated
-  #   Deprecated because the way that variables are handled reduces performance and makes code harder to both read and maintain.
+  # Include allows templates to relate with other templates
+  #
+  # Simply include another template:
+  #
+  #   {% include 'product' %}
+  #
+  # Include a template with a local variable:
+  #
+  #   {% include 'product' with products[0] %}
+  #
+  # Include a template for a collection:
+  #
+  #   {% include 'product' for products %}
   #
-  #   The `include` tag has been replaced by [`render`](/api/liquid/tags#render).
   class Include < Tag
     prepend Tag::Disableable
 

lib/liquid/tags/increment.rb

@@ -1,23 +1,21 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category variable
-  # @liquid_name increment
-  # @liquid_summary
-  #   Creates a new variable, with a default value of 0, that's increased by 1 with each subsequent call.
-  # @liquid_description
-  #   Variables that are declared with `increment` are unique to the [layout](/themes/architecture/layouts), [template](/themes/architecture/templates),
-  #   or [section](/themes/architecture/sections) file that they're created in. However, the variable is shared across
-  #   [snippets](/themes/architecture#snippets) included in the file.
+  # increment is used in a place where one needs to insert a counter
+  #     into a template, and needs the counter to survive across
+  #     multiple instantiations of the template.
+  #     (To achieve the survival, the application must keep the context)
+  #
+  #     if the variable does not exist, it is created with value 0.
+  #
+  #   Hello: {% increment variable %}
+  #
+  # gives you:
+  #
+  #    Hello: 0
+  #    Hello: 1
+  #    Hello: 2
   #
-  #   Similarly, variables that are created with `increment` are independent from those created with [`assign`](/api/liquid/tags#assign)
-  #   and [`capture`](/api/liquid/tags#capture). However, `increment` and [`decrement`](/api/liquid/tags#decrement) share
-  #   variables.
-  # @liquid_syntax
-  #   {% increment variable_name %}
-  # @liquid_syntax_keyword variable_name The name of the variable being incremented.
   class Increment < Tag
     def initialize(tag_name, markup, options)
       super

lib/liquid/tags/inline_comment.rb

@@ -1,43 +0,0 @@
-# frozen_string_literal: true
-
-module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category syntax
-  # @liquid_name inline_comment
-  # @liquid_summary
-  #   Prevents an expression from being rendered or output.
-  # @liquid_description
-  #   Any text inside an `inline_comment` tag won't be rendered or output.
-  #
-  #   You can create multi-line inline comments. However, each line must begin with a `#`.
-  # @liquid_syntax
-  #   {% # content %}
-  # @liquid_syntax_keyword content The content of the comment.
-  class InlineComment < Tag
-    def initialize(tag_name, markup, options)
-      super
-
-      # Semantically, a comment should only ignore everything after it on the line.
-      # Currently, this implementation doesn't support mixing a comment with another tag
-      # but we need to reserve future support for this and prevent the introduction
-      # of inline comments from being backward incompatible change.
-      #
-      # As such, we're forcing users to put a # symbol on every line otherwise this
-      # tag will throw an error.
-      if markup.match?(/\n\s*[^#\s]/)
-        raise SyntaxError, options[:locale].t("errors.syntax.inline_comment_invalid")
-      end
-    end
-
-    def render_to_output_buffer(_context, output)
-      output
-    end
-
-    def blank?
-      true
-    end
-  end
-
-  Template.register_tag('#', InlineComment)
-end

lib/liquid/tags/raw.rb

@@ -1,17 +1,16 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category syntax
-  # @liquid_name raw
-  # @liquid_summary
-  #   Outputs any Liquid code as text instead of rendering it.
-  # @liquid_syntax
+  # @public_docs
+  # @type tag
+  # @category theme
+  # @title raw
+  # @summary
+  #   Allows you to output Liquid code on a page without it being parsed.
+  # @syntax
   #   {% raw %}
-  #     expression
+  #     liquid
   #   {% endraw %}
-  # @liquid_syntax_keyword expression The expression to be output without being rendered.
   class Raw < Block
     Syntax = /\A\s*\z/
     FullTokenPossiblyInvalid = /\A(.*)#{TagStart}\s*(\w+)\s*(.*)?#{TagEnd}\z/om

lib/liquid/tags/render.rb

@@ -1,30 +1,28 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category theme
-  # @liquid_name render
-  # @liquid_summary
-  #   Renders a [snippet](/themes/architecture#snippets) or [app block](/themes/architecture/sections/section-schema#render-app-blocks).
-  # @liquid_description
-  #   Inside snippets and app blocks, you can't directly access variables that are [created](/api/liquid/tags#variable-tags) outside
-  #   of the snippet or app block. However, you can [specify variables as parameters](/api/liquid/tags#render-passing-variables-to-snippets)
-  #   to pass outside variables to snippets.
+  # @public_docs
+  # @type tag
+  # @category theme
+  # @title render
+  # @summary
+  #   Renders a snippet from the **snippets** folder of a theme, or [code for an app block](/themes/architecture/sections/section-schema#render-app-blocks).
+  #  You don't need to write the file's `.liquid` extension.
+  # @description
+  #    When a snippet is rendered, the code inside it doesn't automatically have access to the variables assigned
+  #    using [variable tags](/api/liquid/tags/variable-tags) within the snippet's parent template.
+  #    Similarly, variables assigned within the snippet can't be accessed by the code outside of the snippet.
+  #    This encapsulation increases performance and helps make theme code easier to understand and maintain.
   #
-  #   While you can't directly access created variables, you can access global objects, as well as any objects that are
-  #   directly accessible outside the snippet or app block. For example, a snippet or app block inside the [product template](/themes/architecture/templates/product)
-  #   can access the [`product` object](/api/liquid/objects#product), and a snippet or app block inside a [section](/themes/architecture/sections)
-  #   can access the [`section` object](/api/liquid/objects#section).
+  #    You can't use an [`include`](/api/liquid/tags/theme-tags#include) tag inside of a snippet rendered using the `render` tag.
   #
-  #   Outside a snippet or app block, you can't access variables created inside the snippet or app block.
-  #
-  #   > Note:
-  #   > When you render a snippet using the `render` tag, you can't use the [`include` tag](/api/liquid/tags#include)
-  #   > inside the snippet.
-  # @liquid_syntax
-  #   {% render 'filename' %}
-  # @liquid_syntax_keyword filename The name of the snippet to render, without the `.liquid` extension.
+  #    > Tip:
+  #    > This tag replaces the deprecated [`include`](/api/liquid/tags/theme-tags#include) tag.
+  # @syntax
+  #   {% render reference %}
+  # @optional_param with [string] Pass an object to use in the snippet. Use with the `as` parameter.
+  # @optional_param for [string] Render the snippet once for each value of an enumerable object. Use with the `as` parameter. When using the `for` parameter, the [`forloop`](/api/liquid/objects/for-loops) object is accessible within the snippet.
+  # @optional_param as [string] The variable that the object referenced by a `with` or `for` parameter represents within the snippet.
   class Render < Tag
     FOR = 'for'
     SYNTAX = /(#{QuotedString}+)(\s+(with|#{FOR})\s+(#{QuotedFragment}+))?(\s+(?:as)\s+(#{VariableSegment}+))?/o
@@ -58,9 +56,9 @@ module Liquid
     end
 
     def render_tag(context, output)
-      # The expression should be a String literal, which parses to a String object
-      template_name = @template_name_expr
-      raise ::ArgumentError unless template_name.is_a?(String)
+      # Though we evaluate this here we will only ever parse it as a string literal.
+      template_name = context.evaluate(@template_name_expr)
+      raise ArgumentError, options[:locale].t("errors.argument.include") unless template_name
 
       partial = PartialCache.load(
         template_name,

lib/liquid/tags/table_row.rb

@@ -1,28 +1,23 @@
 # frozen_string_literal: true
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category iteration
-  # @liquid_name tablerow
-  # @liquid_summary
-  #   Generates HTML table rows for every item in an array.
-  # @liquid_description
-  #   The `tablerow` tag must be wrapped in HTML `<table>` and `</table>` tags.
-  #
-  #   > Tip:
-  #   > Every `tablerow` loop has an associated [`tablerowloop` object](/api/liquid/objects#tablerowloop) with information about the loop.
-  # @liquid_syntax
-  #   {% tablerow variable in array %}
-  #     expression
-  #   {% endtablerow %}
-  # @liquid_syntax_keyword variable The current item in the array.
-  # @liquid_syntax_keyword array The array to iterate over.
-  # @liquid_syntax_keyword expression The expression to render.
-  # @liquid_optional_param cols [number] The number of columns that the table should have.
-  # @liquid_optional_param limit [number] The number of iterations to perform.
-  # @liquid_optional_param offset [number] The 1-based index to start iterating at.
-  # @liquid_optional_param range [untyped] A custom numeric range to iterate over.
+  # @public_docs
+  # @title tablerow
+  # @type tag
+  # @category iteration
+  # @summary Generates rows for an HTML table.
+  # @description
+  #   Must be wrapped in opening `<table>` and closing `</table>` HTML tags.
+  #   For a full list of attributes available within a `tablerow` loop, refer to the [`tablerow`](/api/liquid/objects/tablerow) object.
+  # @syntax
+  #   <table>
+  #     {% tablerow variable in interable parameters %}
+  #       content
+  #     {% endtablerow %}
+  #   </table>
+  # @optional_param cols [number] The number of columns the table should have.
+  # @optional_param limit [number] Exit the `tablerow` loop at the specified index.
+  # @optional_param offset [number] Start the `tablerow` loop at the specified index.
   class TableRow < Block
     Syntax = /(\w+)\s+in\s+(#{QuotedFragment}+)/o
 

lib/liquid/tags/unless.rb

@@ -3,21 +3,15 @@
 require_relative 'if'
 
 module Liquid
-  # @liquid_public_docs
-  # @liquid_type tag
-  # @liquid_category conditional
-  # @liquid_name unless
-  # @liquid_summary
-  #   Renders an expression unless a specific condition is `true`.
-  # @liquid_description
-  #   > Tip:
-  #   > Similar to the [`if` tag](/api/liquid/tags#if), you can use `elsif` to add more conditions to an `unless` tag.
-  # @liquid_syntax
-  #   {% unless condition %}
-  #     expression
-  #   {% endif %}
-  # @liquid_syntax_keyword condition The condition to evaluate.
-  # @liquid_syntax_keyword expression The expression to render unless the condition is met.
+  # @public_docs
+  # @title unless
+  # @type tag
+  # @category controlflow
+  # @summary Executes a block of code only if a certain condition is not met (if the result is `falsy`).
+  # @syntax
+  #   {% unless variable operator value %}
+  #     statement
+  #   {% endunless %}
   class Unless < If
     def render_to_output_buffer(context, output)
       # First condition is interpreted backwards ( if not )

lib/liquid/template.rb

@@ -167,14 +167,15 @@ module Liquid
 
       output = nil
 
+      context_register = context.registers.is_a?(StaticRegisters) ? context.registers.static : context.registers
+
       case args.last
       when Hash
         options = args.pop
         output  = options[:output] if options[:output]
-        static_registers = context.registers.static
 
         options[:registers]&.each do |key, register|
-          static_registers[key] = register
+          context_register[key] = register
         end
 
         apply_options_to_context(context, options)

lib/liquid/variable.rb

@@ -47,7 +47,7 @@ module Liquid
 
       name_markup   = Regexp.last_match(1)
       filter_markup = Regexp.last_match(2)
-      @name         = parse_context.parse_expression(name_markup)
+      @name         = Expression.parse(name_markup)
       if filter_markup =~ FilterMarkupRegex
         filters = Regexp.last_match(1).scan(FilterParser)
         filters.each do |f|
@@ -65,7 +65,7 @@ module Liquid
 
       return if p.look(:end_of_string)
 
-      @name = parse_context.parse_expression(p.expression)
+      @name = Expression.parse(p.expression)
       while p.consume?(:pipe)
         filtername = p.consume(:id)
         filterargs = p.consume?(:colon) ? parse_filterargs(p) : []
@@ -122,9 +122,9 @@ module Liquid
       unparsed_args.each do |a|
         if (matches = a.match(JustTagAttributes))
           keyword_args           ||= {}
-          keyword_args[matches[1]] = parse_context.parse_expression(matches[2])
+          keyword_args[matches[1]] = Expression.parse(matches[2])
         else
-          filter_args << parse_context.parse_expression(a)
+          filter_args << Expression.parse(a)
         end
       end
       result = [filter_name, filter_args]

lib/liquid/variable_lookup.rb

@@ -2,7 +2,8 @@
 
 module Liquid
   class VariableLookup
-    COMMAND_METHODS = ['size', 'first', 'last'].freeze
+    SQUARE_BRACKETED = /\A\[(.*)\]\z/m
+    COMMAND_METHODS  = ['size', 'first', 'last'].freeze
 
     attr_reader :name, :lookups
 
@@ -14,8 +15,8 @@ module Liquid
       lookups = markup.scan(VariableParser)
 
       name = lookups.shift
-      if name&.start_with?('[') && name&.end_with?(']')
-        name = Expression.parse(name[1..-2])
+      if name =~ SQUARE_BRACKETED
+        name = Expression.parse(Regexp.last_match(1))
       end
       @name = name
 
@@ -24,8 +25,8 @@ module Liquid
 
       @lookups.each_index do |i|
         lookup = lookups[i]
-        if lookup&.start_with?('[') && lookup&.end_with?(']')
-          lookups[i] = Expression.parse(lookup[1..-2])
+        if lookup =~ SQUARE_BRACKETED
+          lookups[i] = Expression.parse(Regexp.last_match(1))
         elsif COMMAND_METHODS.include?(lookup)
           @command_flags |= 1 << i
         end

lib/liquid/version.rb

@@ -2,5 +2,5 @@
 # frozen_string_literal: true
 
 module Liquid
-  VERSION = "5.4.0.alpha"
+  VERSION = "5.3.0.alpha"
 end

liquid.gemspec

@@ -17,12 +17,13 @@ Gem::Specification.new do |s|
   s.license     = "MIT"
   # s.description = "A secure, non-evaling end user template engine with aesthetic markup."
 
-  s.required_ruby_version     = ">= 2.7.0"
+  s.required_ruby_version     = ">= 2.5.0"
   s.required_rubygems_version = ">= 1.3.7"
 
   s.metadata['allowed_push_host'] = 'https://rubygems.org'
 
-  s.files = Dir.glob("{lib}/**/*") + %w(LICENSE README.md)
+  s.test_files  = Dir.glob("{test}/**/*")
+  s.files       = Dir.glob("{lib}/**/*") + %w(LICENSE README.md)
 
   s.extra_rdoc_files = ["History.md", "README.md"]
 

performance/theme_runner.rb

@@ -3,7 +3,7 @@
 # This profiler run simulates Shopify.
 # We are looking in the tests directory for liquid files and render them within the designated layout file.
 # We will also export a substantial database to liquid which the templates can render values of.
-# All this is to make the benchmark as non synthetic as possible. All templates and tests are lifted from
+# All this is to make the benchmark as non syntetic as possible. All templates and tests are lifted from
 # direct real-world usage and the profiler measures code that looks very similar to the way it looks in
 # Shopify which is likely the biggest user of liquid in the world which something to the tune of several
 # million Template#render calls a day.

test/integration/context_test.rb

@@ -529,7 +529,7 @@ class ContextTest < Minitest::Test
     registers = {
       my_register: :my_value,
     }
-    super_context = Context.new({}, {}, Registers.new(registers))
+    super_context = Context.new({}, {}, StaticRegisters.new(registers))
     super_context.registers[:my_register] = :my_alt_value
     subcontext                            = super_context.new_isolated_subcontext
     assert_equal(:my_value, subcontext.registers[:my_register])
@@ -618,20 +618,6 @@ class ContextTest < Minitest::Test
     end
   end
 
-  def test_context_always_uses_static_registers
-    registers = {
-      my_register: :my_value,
-    }
-    c = Context.new({}, {}, registers)
-    assert_instance_of(Registers, c.registers)
-    assert_equal(:my_value, c.registers[:my_register])
-
-    r = Registers.new(registers)
-    c = Context.new({}, {}, r)
-    assert_instance_of(Registers, c.registers)
-    assert_equal(:my_value, c.registers[:my_register])
-  end
-
   private
 
   def assert_no_object_allocations

test/integration/standard_filter_test.rb

@@ -32,7 +32,7 @@ class TestDrop < Liquid::Drop
   attr_reader :value
 
   def registers
-    { @value => @context.registers[@value] }
+    @context.registers
   end
 end
 
@@ -440,7 +440,7 @@ class StandardFiltersTest < Minitest::Test
   end
 
   def test_map_calls_context=
-    model = TestModel.new(value: :test)
+    model = TestModel.new(value: "test")
 
     template = Template.parse('{{ foo | map: "registers" }}')
     template.registers[:test] = 1234

test/integration/tags/inline_comment_test.rb

@@ -1,69 +0,0 @@
-# frozen_string_literal: true
-
-require 'test_helper'
-
-class InlineCommentTest < Minitest::Test
-  include Liquid
-
-  def test_inline_comment_returns_nothing
-    assert_template_result('', '{%- # this is an inline comment -%}')
-    assert_template_result('', '{%-# this is an inline comment -%}')
-    assert_template_result('', '{% # this is an inline comment %}')
-    assert_template_result('', '{%# this is an inline comment %}')
-  end
-
-  def test_inline_comment_does_not_require_a_space_after_the_pound_sign
-    assert_template_result('', '{%#this is an inline comment%}')
-  end
-
-  def test_liquid_inline_comment_returns_nothing
-    assert_template_result('Hey there, how are you doing today?', <<~LIQUID)
-      {%- liquid
-        # This is how you'd write a block comment in a liquid tag.
-        # It looks a lot like what you'd have in ruby.
-
-        # You can use it as inline documentation in your
-        # liquid blocks to explain why you're doing something.
-        echo "Hey there, "
-
-        # It won't affect the output.
-        echo "how are you doing today?"
-      -%}
-    LIQUID
-  end
-
-  def test_inline_comment_can_be_written_on_multiple_lines
-    assert_template_result('', <<~LIQUID)
-      {%-
-        # That kind of block comment is also allowed.
-        # It would only be a stylistic difference.
-
-        # Much like JavaScript's /* */ comments and their
-        # leading * on new lines.
-      -%}
-    LIQUID
-  end
-
-  def test_inline_comment_multiple_pound_signs
-    assert_template_result('', <<~LIQUID)
-      {%- liquid
-        ######################################
-        # We support comments like this too. #
-        ######################################
-      -%}
-    LIQUID
-  end
-
-  def test_inline_comments_require_the_pound_sign_on_every_new_line
-    assert_match_syntax_error("Each line of comments must be prefixed by the '#' character", <<~LIQUID)
-      {%-
-        # some comment
-        echo 'hello world'
-      -%}
-    LIQUID
-  end
-
-  def test_inline_comment_does_not_support_nested_tags
-    assert_template_result(' -%}', "{%- # {% echo 'hello world' %} -%}")
-  end
-end

test/unit/partial_cache_unit_test.rb

@@ -125,35 +125,4 @@ class PartialCacheUnitTest < Minitest::Test
     assert_equal('my partial body', partial.render)
     assert_equal(1, template_factory.count)
   end
-
-  def test_cache_state_is_shared_for_subcontexts
-    parse_context      = Liquid::ParseContext.new
-    shared_file_system = StubFileSystem.new(
-      'my_partial' => 'my shared value'
-    )
-    context = Liquid::Context.build(
-      registers: Liquid::Registers.new(
-        file_system: shared_file_system,
-      )
-    )
-    subcontext = context.new_isolated_subcontext
-
-    assert_equal(subcontext.registers[:cached_partials].object_id, context.registers[:cached_partials].object_id)
-
-    2.times do
-      Liquid::PartialCache.load(
-        'my_partial',
-        context: context,
-        parse_context: parse_context
-      )
-
-      Liquid::PartialCache.load(
-        'my_partial',
-        context: subcontext,
-        parse_context: parse_context
-      )
-    end
-
-    assert_equal(1, shared_file_system.file_read_count)
-  end
 end

test/unit/static_registers_unit_test.rb

@@ -2,11 +2,11 @@
 
 require 'test_helper'
 
-class RegistersUnitTest < Minitest::Test
+class StaticRegistersUnitTest < Minitest::Test
   include Liquid
 
   def test_set
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
     static_register[:b] = 22
     static_register[:c] = 33
 
@@ -16,13 +16,13 @@ class RegistersUnitTest < Minitest::Test
   end
 
   def test_get_missing_key
-    static_register = Registers.new
+    static_register = StaticRegisters.new
 
     assert_nil(static_register[:missing])
   end
 
   def test_delete
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
     static_register[:b] = 22
     static_register[:c] = 33
 
@@ -37,7 +37,7 @@ class RegistersUnitTest < Minitest::Test
   end
 
   def test_fetch
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
     static_register[:b] = 22
     static_register[:c] = 33
 
@@ -61,7 +61,7 @@ class RegistersUnitTest < Minitest::Test
   end
 
   def test_key
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
     static_register[:b] = 22
     static_register[:c] = 33
 
@@ -72,7 +72,7 @@ class RegistersUnitTest < Minitest::Test
   end
 
   def test_static_register_can_be_frozen
-    static_register = Registers.new(a: 1)
+    static_register = StaticRegisters.new(a: 1)
 
     static_register.static.freeze
 
@@ -94,14 +94,14 @@ class RegistersUnitTest < Minitest::Test
   end
 
   def test_new_static_retains_static
-    static_register = Registers.new(a: 1, b: 2)
+    static_register = StaticRegisters.new(a: 1, b: 2)
     static_register[:b] = 22
     static_register[:c] = 33
 
-    new_static_register = Registers.new(static_register)
+    new_static_register = StaticRegisters.new(static_register)
     new_static_register[:b] = 222
 
-    newest_static_register = Registers.new(new_static_register)
+    newest_static_register = StaticRegisters.new(new_static_register)
     newest_static_register[:c] = 333
 
     assert_equal(1, static_register[:a])
@@ -118,11 +118,11 @@ class RegistersUnitTest < Minitest::Test
   end
 
   def test_multiple_instances_are_unique
-    static_register_1 = Registers.new(a: 1, b: 2)
+    static_register_1 = StaticRegisters.new(a: 1, b: 2)
     static_register_1[:b] = 22
     static_register_1[:c] = 33
 
-    static_register_2 = Registers.new(a: 10, b: 20)
+    static_register_2 = StaticRegisters.new(a: 10, b: 20)
     static_register_2[:b] = 220
     static_register_2[:c] = 330
 
@@ -138,11 +138,11 @@ class RegistersUnitTest < Minitest::Test
   end
 
   def test_initialization_reused_static_same_memory_object
-    static_register_1 = Registers.new(a: 1, b: 2)
+    static_register_1 = StaticRegisters.new(a: 1, b: 2)
     static_register_1[:b] = 22
     static_register_1[:c] = 33
 
-    static_register_2 = Registers.new(static_register_1)
+    static_register_2 = StaticRegisters.new(static_register_1)
 
     assert_equal(1, static_register_2[:a])
     assert_equal(2, static_register_2[:b])