Class: Markawesome::CalloutTransformer

Inherits:
BaseTransformer show all
Defined in:
lib/markawesome/transformers/callout_transformer.rb

Overview

Transforms callout syntax into wa-callout elements

Primary syntax: :::variant [size] [appearance]ncontentn:
Alternative syntax: :::wa-callout variant [size] [appearance]ncontentn:

Variants: brand, info (alias for brand), success, neutral, warning, danger Size: small, medium, large Appearance: accent, filled, outlined, plain, filled-outlined

Constant Summary collapse

VARIANTS = 
%w[info brand success neutral warning danger].freeze
CALLOUT_ATTRIBUTES = 
{
  size: %w[xs s m l xl small medium large],
  appearance: %w[accent filled outlined plain filled-outlined]
}.freeze
VARIANT_ALIASES = 
{ 'info' => 'brand' }.freeze
ICON_SLOTS = 
{ default: 'icon', slots: %w[icon] }.freeze
GFM_ALERT_MAP = 
{
  'info' => 'NOTE',
  'brand' => 'NOTE',
  'success' => 'TIP',
  'neutral' => 'IMPORTANT',
  'warning' => 'WARNING',
  'danger' => 'CAUTION'
}.freeze

Class Method Summary collapse

Class Method Details

.render_as_markdown(content, _options = {}) ⇒ Object 



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# File 'lib/markawesome/transformers/callout_transformer.rb', line 64

def self.render_as_markdown(content, _options = {})
  variant_pattern = VARIANTS.join('|')
  primary_regex = /^:::(#{variant_pattern})([^\n]*)\n(.*?)\n:::/m
  alternative_regex = /^:::wa-callout\s+(#{variant_pattern})([^\n]*)\n(.*?)\n:::/m

  transform_proc = proc do |variant, _extra_params, inner_content|
    alert = GFM_ALERT_MAP.fetch(variant, 'NOTE')
    body = inner_content.to_s.strip
    quoted = body.empty? ? '' : body.split("\n").map { |l| l.empty? ? '>' : "> #{l}" }.join("\n")
    body.empty? ? "> [!#{alert}]" : "> [!#{alert}]\n#{quoted}"
  end

  patterns = dual_syntax_patterns(primary_regex, alternative_regex, transform_proc)
  apply_multiple_patterns(content, patterns)
end

.transform(content) ⇒ Object 



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# File 'lib/markawesome/transformers/callout_transformer.rb', line 24

def self.transform(content)
  variant_pattern = VARIANTS.join('|')
  primary_regex = /^:::(#{variant_pattern})([^\n]*)\n(.*?)\n:::/m
  alternative_regex = /^:::wa-callout\s+(#{variant_pattern})([^\n]*)\n(.*?)\n:::/m

  transform_proc = proc do |variant, extra_params, inner_content|
    actual_variant = VARIANT_ALIASES.fetch(variant, variant)

    # Parse icon tokens first, then pass remaining to AttributeParser.
    # CALLOUT_ATTRIBUTES and IconAttributes::SCHEMA namespaces are disjoint, so the
    # same remaining-token string can be parsed against both independently.
    icon_result = IconSlotParser.parse(extra_params, ICON_SLOTS)
    extra_attrs = AttributeParser.parse(icon_result[:remaining], CALLOUT_ATTRIBUTES)
    icon_attrs  = AttributeParser.parse(icon_result[:remaining], IconAttributes::SCHEMA)
    icon_attrs[:variant] ||= 'solid' # preserve historical default

    attr_parts = ["variant=\"#{actual_variant}\""]
    attr_parts << "appearance=\"#{extra_attrs[:appearance]}\"" if extra_attrs[:appearance]
    attr_parts << "size=\"#{extra_attrs[:size]}\"" if extra_attrs[:size]

    icon_name = icon_result[:icons]['icon'] || icon_name_for(actual_variant)
    icon_html = callout_icon_html(icon_name, icon_attrs)
    html_content = "#{icon_html}#{markdown_to_html(inner_content)}"

    "<wa-callout #{attr_parts.join(' ')}>#{html_content}</wa-callout>"
  end

  patterns = dual_syntax_patterns(primary_regex, alternative_regex, transform_proc)
  apply_multiple_patterns(content, patterns)
end