Class: ExtractI18n::Adapters::VueAdapter

Inherits:
Adapter
  • Object
show all
Defined in:
lib/extract_i18n/adapters/vue_adapter.rb

Constant Summary collapse

ATTRIBUTES_WITH_TEXT = 
%w[
  title
  alt
  placeholder
  label
  description
]

Instance Attribute Summary

Attributes inherited from Adapter

#file_key, #file_path, #on_ask, #options

Instance Method Summary collapse

Methods inherited from Adapter

for, #initialize, supports_relative_keys?

Constructor Details

This class inherits a constructor from ExtractI18n::Adapters::Adapter

Instance Method Details

#check_javascript_for_strings! ⇒ Object 



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# File 'lib/extract_i18n/adapters/vue_adapter.rb', line 140

def check_javascript_for_strings!
  lines = @new_content
  # drop lines until <script
  start = lines.find_index { |line| line[/^<script/] }
  finish = lines.find_index { |line| line[/^<\/script/] }
  return if start.nil? || finish.nil?

  js_content = lines[(start + 1)...finish].join("\n")

  js_adapter = ExtractI18n::Adapters::JsAdapter.new(file_key: @file_key, on_ask: @on_ask, options: @options)
  js_replaced = js_adapter.run(js_content)

  @new_content = lines[0..start] + js_replaced.split("\n") + lines[(finish)..-1]
end

#extract_arguments(translation) ⇒ Object 



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# File 'lib/extract_i18n/adapters/vue_adapter.rb', line 128

def extract_arguments(translation)
  args = {}
  translation.scan(/\{\{([^}]*)\}\}/).each_with_index do |stripped_arg, index|
    arg = Regexp.last_match[0]
    key = ExtractI18n.key(arg)
    key = key + index.to_s if index > 0
    translation = translation.gsub(arg, "{#{key}}")
    args[key] = stripped_arg[0]
  end
  [args, translation]
end

#process_attribute_change(node, attr) ⇒ Object 



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# File 'lib/extract_i18n/adapters/vue_adapter.rb', line 87

def process_attribute_change(node, attr)
  _, ws_before, content, ws_after = node[attr].to_s.match(/(\s*)(.*?)(\s*)$/m).to_a

  interpolate_arguments, content = extract_arguments(content)

  change = ExtractI18n::SourceChange.new(
    i18n_key: "#{@file_key}.#{ExtractI18n.key(content)}",
    i18n_string: content,
    source_line: node.to_s,
    remove: content,
    t_template: %[$t('%s'%s)],
    interpolation_type: :vue,
    interpolate_arguments: interpolate_arguments,
  )
  if @on_ask.call(change)
    node.remove_attribute "title"
    node[":" + attr] = "#{ws_before}#{change.i18n_t}#{ws_after}"
  end
end

#process_change(node) ⇒ Object 



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# File 'lib/extract_i18n/adapters/vue_adapter.rb', line 107

def process_change(node)
  _, ws_before, content, ws_after = node.to_s.match(/(\s*)(.*?)(\s*)$/m).to_a

  return if content[/^\{\{/]

  interpolate_arguments, content = extract_arguments(content)

  change = ExtractI18n::SourceChange.new(
    i18n_key: "#{@file_key}.#{ExtractI18n.key(content)}",
    i18n_string: content,
    source_line: node.parent.to_s,
    remove: content,
    t_template: %[{{ $t('%s'%s) }}],
    interpolation_type: :vue,
    interpolate_arguments: interpolate_arguments,
  )
  if @on_ask.call(change)
    node.replace("#{ws_before}#{change.i18n_t}#{ws_after}")
  end
end

#replace_camelcase_attributes(text) ⇒ Object

nokogir::html can parse @click.prevent stuff, but transforms all CamelCase Attributes to kebab-case by default To keep the original case, we replace it with a placeholder and unreplace it back



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# File 'lib/extract_i18n/adapters/vue_adapter.rb', line 47

def replace_camelcase_attributes(text)
  cc = 1
  pairs = []
  replaced = text.gsub(/ ([a-zA-Z:]+=)/) { |pp|
    match = Regexp.last_match
    cc += 1
    # kebab-case
    if pp[/[A-Z]/]
      kebab = match[1].gsub(/([A-Z])/) { |i| "-#{i.downcase}" }
      hack = " :camelcase-nokogiri-hack-#{cc}-#{kebab}"
      pairs << [hack, " " + match[1]]
      hack
    else
      pp
    end
  }
  # tags
  replaced.scan(/<([a-zA-Z0-9]+)/).flatten.each do |pp|
    next pp unless pp[/[A-Z]/]

    cc += 1

    kebab = pp.gsub(/([A-Z])/) { |i| "-#{i.downcase}" }.sub(/^-/, '')
    hack = "camelcase-nokogiri-hack-#{cc}-#{kebab}"
    replaced.gsub!(/<#{pp}/, "<#{hack}")
    replaced.gsub!(/<\/ *#{pp}/, "</#{hack}")
    pairs << ["<#{hack}", "<#{pp}"]
    pairs << ["</#{hack}", "</#{pp}"]
  end
  [replaced, pairs]
end

#run(original_content) ⇒ Object 



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# File 'lib/extract_i18n/adapters/vue_adapter.rb', line 11

def run(original_content)
  content2, replace_pairs = replace_camelcase_attributes(original_content)

  doc = Nokogiri::HTML5.fragment(content2)
  template = doc.at('template')
  return original_content unless template
  return original_content if template['lang']

  nodes = template.xpath(".//text() | text()").select { |i| i.to_s.strip.length > 0 }

  nodes.each do |node|
    process_change(node)
  end

  ATTRIBUTES_WITH_TEXT.each do |attr|
    template.search("*[#{attr}]").each do |node|
      process_attribute_change(node, attr)
    end
  end

  out = unreplace_camelcase_attributes(doc.to_s, replace_pairs)
  out.gsub!(/ (\w+)=""/) do |all_match|
    m = $1
    if original_content[/ #{m}[^=]/]
      " #{m}"
    else
      all_match
    end
  end
  @new_content = out.split("\n")
  check_javascript_for_strings!
  @new_content.join("\n")
end

#unreplace_camelcase_attributes(text, pairs) ⇒ Object 



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# File 'lib/extract_i18n/adapters/vue_adapter.rb', line 79

def unreplace_camelcase_attributes(text, pairs)
  txt = text.dup
  pairs.each do |hack, camel|
    txt.gsub!(hack, camel)
  end
  txt
end