Class: GetText::PO

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/gettext/po.rb

Overview

PO stores PO entries like Hash. Each key of POEntry is msgctxt and msgid. PO[msgctxt, msgid] returns the POEntry containing msgctxt and msgid. If you specify msgid only, msgctxt is treated as nonexistent.

Since:

  • 2.3.4

Defined Under Namespace

Classes: NonExistentEntryError

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(order = nil) ⇒ PO

Returns a new instance of PO.

Since:

  • 2.3.4



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# File 'lib/gettext/po.rb', line 53

def initialize(order=nil)
  @order = order || :reference
  @entries = {}
end

Instance Attribute Details

#order ⇒ Symbol

The order is used to sort PO entries(objects of GetText::POEntry) in #to_s.

Parameters:

  • order (:reference, :msgid) —

    (:reference) The sort key.

    Use :reference for sorting by location that message is placed.

    Use :msgid for sorting by msgid alphabetical order.

    :references is deprecated since 3.0.4. It will be removed at 4.0.0. Use :reference instead.

Returns:

  • (Symbol) —

    the name as order by sort.



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# File 'lib/gettext/po.rb', line 51

def order
  @order
end

Instance Method Details

#[](msgid) ⇒ POEntry #[](msgctxt, msgid) ⇒ POEntry

Returns GetText::POEntry containing msgctxt and msgid. If you specify one argument, it is treated as msgid.

Overloads:

Since:

  • 2.3.4



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# File 'lib/gettext/po.rb', line 68

def [](msgctxt, msgid=nil)
  if msgid.nil?
    msgid = msgctxt
    msgctxt = nil
  end

  @entries[[msgctxt, msgid]]
end

#[]=(msgid, po_entry) ⇒ Object #[]=(msgctxt, msgid, po_entry) ⇒ Object #[]=(msgid, msgstr) ⇒ Object #[]=(msgctxt, msgid, msgstr) ⇒ Object

Stores GetText::POEntry or msgstr binding msgctxt and msgid. If you specify msgstr, this method creates GetText::POEntry containing it. If you specify the two argument, the first argument is treated as msgid.

Overloads:

Since:

  • 2.3.4



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# File 'lib/gettext/po.rb', line 99

def []=(*arguments)
  case arguments.size
  when 2
    msgctxt = nil
    msgid = arguments[0]
    value = arguments[1]
  when 3
    msgctxt = arguments[0]
    msgid = arguments[1]
    value = arguments[2]
  else
    raise(ArgumentError,
          "[]=: wrong number of arguments(#{arguments.size} for 2..3)")
  end

  id = [msgctxt, msgid]
  if value.instance_of?(POEntry)
    @entries[id] = value
    return(value)
  end

  msgstr = value
  if @entries.has_key?(id)
    entry = @entries[id]
  else
    if msgctxt.nil?
      entry = POEntry.new(:normal)
    else
      entry = POEntry.new(:msgctxt)
    end
    @entries[id] = entry
  end
  entry.msgctxt = msgctxt
  entry.msgid = msgid
  entry.msgstr = msgstr
  entry
end

#each {|entry| ... } ⇒ Object #each ⇒ Enumerator

Calls block once for each GetText::POEntry as a block parameter.

Overloads:

Since:

  • 2.3.4



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# File 'lib/gettext/po.rb', line 173

def each(&block)
  @entries.each_value(&block)
end

#empty? ⇒ Bool

Returns true if there is no entry, false otherwise.

Returns:

  • (Bool) —

    true if there is no entry, false otherwise.

Since:

  • 2.3.4



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# File 'lib/gettext/po.rb', line 178

def empty?
  @entries.empty?
end

#has_key?(msgid) ⇒ Boolean #has_key?(msgctxt, msgid) ⇒ Boolean

Returns if PO stores GetText::POEntry containing msgctxt and msgid. If you specify one argument, it is treated as msgid and msgctxt is nil.

Overloads:

  • #has_key?(msgid) ⇒ Boolean

    Parameters:

    • msgid (String) —

      msgid contained GetText::POEntry checked if it be stored PO.

  • #has_key?(msgctxt, msgid) ⇒ Boolean

    Parameters:

    • msgctxt (String) —

      msgctxt contained GetText::POEntry checked if it be stored PO.

    • msgid (String) —

      msgid contained GetText::POEntry checked if it be stored PO.

Returns:

  • (Boolean)

Since:

  • 2.3.4



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# File 'lib/gettext/po.rb', line 150

def has_key?(*arguments)
  case arguments.size
  when 1
    msgctxt = nil
    msgid = arguments[0]
  when 2
    msgctxt = arguments[0]
    msgid = arguments[1]
  else
    message = "has_key?: wrong number of arguments " +
                "(#{arguments.size} for 1..2)"
    raise(ArgumentError, message)
  end
  id = [msgctxt, msgid]
  @entries.has_key?(id)
end

#set_comment(msgid, comment, msgctxt = nil) ⇒ Object

For PoParer.

Since:

  • 2.3.4



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# File 'lib/gettext/po.rb', line 183

def set_comment(msgid, comment, msgctxt=nil)
  id = [msgctxt, msgid]
  self[*id] = nil unless @entries.has_key?(id)
  self[*id].comment = comment
end

#to_s(options = {}) ⇒ String

Formats each GetText::POEntry to the format of PO files and returns joined them.

Parameters:

  • options (Hash) (defaults to: {})

Returns:

  • (String) —

    Formatted and joined PO entries. It is used for creating .po files.

See Also:

Since:

  • 2.3.4



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# File 'lib/gettext/po.rb', line 196

def to_s(options={})
  po_string = String.new

  header_entry = @entries[[nil, ""]]
  unless header_entry.nil?
    po_string << header_entry.to_s(options.merge(:max_line_width => nil))
  end

  content_entries = @entries.reject do |(_, msgid), _|
    msgid == :last or msgid.empty?
  end

  sort(content_entries).each do |msgid, entry|
    po_string << "\n" unless po_string.empty?
    po_string << entry.to_s(options)
  end

  if @entries.has_key?([nil, :last])
    po_string << "\n" unless po_string.empty?
    po_string << @entries[[nil, :last]].to_s(options)
  end

  po_string
end