Module: Vcard

Defined in:
lib/vcard/bnf.rb,
lib/vcard.rb,
lib/vcard/field.rb,
lib/vcard/vcard.rb,
lib/vcard/errors.rb,
lib/vcard/dirinfo.rb,
lib/vcard/version.rb,
lib/vcard/attachment.rb,
lib/vcard/enumerator.rb

Overview

This library is free software; you can redistribute it and/or modify it under the same terms as the ruby language itself.

Defined Under Namespace

Modules: Attachment, Bnf Classes: DirectoryInfo, Enumerator, InvalidEncodingError, Unencodeable, UnsupportedError, Vcard

Constant Summary collapse

VERSION = 
"0.2.11"

Class Method Summary collapse

Class Method Details

.array_datetime_to_time(dtarray) ⇒ Object

:nodoc:



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# File 'lib/vcard.rb', line 97

def self.array_datetime_to_time(dtarray) #:nodoc:
# We get [year, month, day, hour, min, sec, usec, tz]
  tz = (dtarray.pop == "Z") ? :gm : :local
  Time.send(tz, *dtarray)
rescue ArgumentError => e
  raise ::Vcard::InvalidEncodingError, "#{tz} #{e} (#{dtarray.join(', ')})"
end

.decode(card) ⇒ Object

Unfold the lines in card, then return an array of one Field object per line.



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# File 'lib/vcard.rb', line 232

def self.decode(card) #:nodoc:
  unfold(card).map { |line| DirectoryInfo::Field.decode(line) }
end

.decode_date(v) ⇒ Object

Convert a RFC 2425 date into an array of [year, month, day].

Raises:



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# File 'lib/vcard.rb', line 61

def self.decode_date(v) # :nodoc:
  raise ::Vcard::InvalidEncodingError, "date not valid (#{v})" unless v =~ Bnf::DATE
  [$1.to_i, $2.to_i, $3.to_i]
end

.decode_date_list(v) ⇒ Object

Convert a RFC2425 date-list into an array of dates.



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# File 'lib/vcard.rb', line 145

def self.decode_date_list(v) # :nodoc:
  decode_list(v) do |date|
    date.strip!
    decode_date(date) if date.length > 0
  end.compact
end

.decode_date_time(v) ⇒ Object

Convert a RFC 2425 date-time into an array of [year,mon,day,hour,min,sec,secfrac,timezone]

Raises:



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# File 'lib/vcard.rb', line 111

def self.decode_date_time(v) # :nodoc:
  raise ::Vcard::InvalidEncodingError, "date-time '#{v}' not valid" unless match = Bnf::DATE_TIME.match(v)
  year, month, day, hour, min, sec, secfrac, tz = match.to_a[1..8]

  [
    # date
    year.to_i, month.to_i, day.to_i,
    # time
    hour.to_i, min.to_i, sec.to_i, secfrac ? secfrac.to_f : 0, tz
  ]
end

.decode_date_time_list(v) ⇒ Object

Convert a RFC 2425 date-time-list into an array of date-times.



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# File 'lib/vcard.rb', line 161

def self.decode_date_time_list(v) # :nodoc:
  decode_list(v) do |datetime|
    datetime.strip!
    decode_date_time(datetime) if datetime.length > 0
  end.compact
end

.decode_date_time_to_datetime(v) ⇒ Object

:nodoc:



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# File 'lib/vcard.rb', line 123

def self.decode_date_time_to_datetime(v) #:nodoc:
  year, month, day, hour, min, sec = decode_date_time(v)
  # TODO - DateTime understands timezones, so we could decode tz and use it.
  DateTime.civil(year, month, day, hour, min, sec, 0)
end

.decode_date_to_date(v) ⇒ Object

Convert a RFC 2425 date into a Date object.



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# File 'lib/vcard.rb', line 67

def self.decode_date_to_date(v)
  Date.new(*decode_date(v))
end

.decode_integer(v) ⇒ Object

Convert an RFC2425 INTEGER value into an Integer

Raises:



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# File 'lib/vcard.rb', line 136

def self.decode_integer(v) # :nodoc:
  raise ::Vcard::InvalidEncodingError, "integer not valid (#{v})" unless v =~ Bnf::INTEGER
  v.to_i
end

.decode_list(value, sep = ",") ⇒ Object

Convert a sep-seperated list of values into an array of values.



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# File 'lib/vcard.rb', line 49

def self.decode_list(value, sep = ",") # :nodoc:
  list = []

  value.split(sep).each do |item|
    item.chomp!(sep)
    list << yield(item)
  end

  list
end

.decode_text(v) ⇒ Object

Convert RFC 2425 text into a String. \ -> \ n -> NL N -> NL , -> , ; -> ;

I’ve seen double-quote escaped by iCal.app. Hmm. Ok, if you aren’t supposed to escape anything but the above, everything else is ambiguous, so I’ll just support it.



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# File 'lib/vcard.rb', line 178

def self.decode_text(v) # :nodoc:
  # FIXME - I think this should trim leading and trailing space
  v.gsub(/\\(.)/) do
    case $1
    when "n", "N"
      "\n"
    else
      $1
    end
  end
end

.decode_text_list(value, sep = ",") ⇒ Object

Convert a sep-seperated list of TEXT values into an array of values.



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# File 'lib/vcard.rb', line 202

def self.decode_text_list(value, sep = ",") # :nodoc:
  # Need to do in two stages, as best I can find.
  list = value.scan(/([^#{sep}\\]*(?:\\.[^#{sep}\\]*)*)#{sep}/).map { |v| decode_text(v.first) }
  list << $1 if value.match(/([^#{sep}\\]*(?:\\.[^#{sep}\\]*)*)$/)
  list
end

.decode_time(v) ⇒ Object

Convert a RFC 2425 time into an array of [hour,min,sec,secfrac,timezone]

Raises:



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# File 'lib/vcard.rb', line 90

def self.decode_time(v) # :nodoc:
  raise ::Vcard::InvalidEncodingError, "time '#{v}' not valid" unless match = Bnf::TIME.match(v)
  hour, min, sec, secfrac, tz = match.to_a[1..5]

  [hour.to_i, min.to_i, sec.to_i, secfrac ? secfrac.to_f : 0, tz]
end

.decode_time_list(v) ⇒ Object

Convert a RFC 2425 time-list into an array of times.



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# File 'lib/vcard.rb', line 153

def self.decode_time_list(v) # :nodoc:
  decode_list(v) do |time|
    time.strip!
    decode_time(time) if time.length > 0
  end.compact
end

.decode_time_to_time(v) ⇒ Object

Convert a RFC 2425 time into an array of Time objects.



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# File 'lib/vcard.rb', line 106

def self.decode_time_to_time(v) # :nodoc:
  array_datetime_to_time(decode_date_time(v))
end

.encode_date(d) ⇒ Object

Encode a Date object as “yyyymmdd”.



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# File 'lib/vcard.rb', line 75

def self.encode_date(d) # :nodoc:
   "%0.4d%0.2d%0.2d" % [d.year, d.mon, d.day]
end

.encode_date_time(d) ⇒ Object

Encode a Time or DateTime object as “yyyymmddThhmmss”



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# File 'lib/vcard.rb', line 85

def self.encode_date_time(d) # :nodoc:
   "%0.4d%0.2d%0.2dT%0.2d%0.2d%0.2d" % [d.year, d.mon, d.day, d.hour, d.min, d.sec]
end

.encode_paramtext(value) ⇒ Object

param-value = paramtext / quoted-string paramtext = *SAFE-CHAR quoted-string = DQUOTE *QSAFE-CHAR DQUOTE



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# File 'lib/vcard.rb', line 212

def self.encode_paramtext(value)
  if value =~ Bnf::ALL_SAFECHARS
    value
  else
    raise ::Vcard::Unencodable, "paramtext #{value.inspect}"
  end
end

.encode_paramvalue(value) ⇒ Object 



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# File 'lib/vcard.rb', line 220

def self.encode_paramvalue(value)
  if value =~ Bnf::ALL_SAFECHARS
    value
  elsif value =~ Bnf::ALL_QSAFECHARS
    %Q{"#{value}"}
  else
    raise ::Vcard::Unencodable, "param-value #{value.inspect}"
  end
end

.encode_text(v) ⇒ Object

:nodoc:



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# File 'lib/vcard.rb', line 190

def self.encode_text(v) #:nodoc:
  v.to_str.gsub(/[\\,;]/, '\\\\\0').gsub(/\r?\n/, "\\n")
end

.encode_text_list(v, sep = ",") ⇒ Object

v is an Array of String, or just a single String



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# File 'lib/vcard.rb', line 195

def self.encode_text_list(v, sep = ",") #:nodoc:
  v.to_ary.map { |t| encode_text(t) }.join(sep)
rescue
  encode_text(v)
end

.encode_time(d) ⇒ Object

Encode a Date object as “yyyymmdd”.



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# File 'lib/vcard.rb', line 80

def self.encode_time(d) # :nodoc:
   "%0.4d%0.2d%0.2d" % [d.year, d.mon, d.day]
end

.expand(src) ⇒ Object

Expand an array of fields into its syntactic entities. Each entity is a sequence of fields where the sequences is delimited by a BEGIN/END field. Since BEGIN/END delimited entities can be nested, we build a tree. Each entry in the array is either a Field or an array of entries (where each entry is either a Field, or an array of entries…).



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# File 'lib/vcard.rb', line 242

def self.expand(src) #:nodoc:
  # output array to expand the src to
  dst = []
  # stack used to track our nesting level, as we see begin/end we start a
  # new/finish the current entity, and push/pop that entity from the stack
  current = [dst]

  for f in src
    if f.name? "BEGIN"
      e = [f]

      current.last.push(e)
      current.push(e)
    elsif f.name? "END"
      current.last.push(f)

      unless current.last.first.value? current.last.last.value
        raise "BEGIN/END mismatch (#{current.last.first.value} != #{current.last.last.value})"
      end

      current.pop
    else
      current.last.push(f)
    end
  end

  dst
end

.outer_inner(fields) ⇒ Object

Split an array into an array of all the fields at the outer level, and an array of all the inner arrays of fields. Return the array [outer, inner].



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# File 'lib/vcard.rb', line 274

def self.outer_inner(fields) #:nodoc:
  # TODO - use Enumerable#partition
  # seperate into the outer-level fields, and the arrays of component
  # fields
  outer = []
  inner = []
  fields.each do |line|
    case line
    when Array then inner << line
    else outer << line
    end
  end
  return outer, inner
end

.unfold(card) ⇒ Object

Split on rn or n to get the lines, unfold continued lines (they start with “ ” or t), and return the array of unfolded lines.

This also supports the (invalid) encoding convention of allowing empty lines to be inserted for readability - it does this by dropping zero-length lines.



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# File 'lib/vcard.rb', line 25

def self.unfold(card) #:nodoc:
    unfolded = []

    prior_line = nil
    card.lines do |line|
      line.chomp!
      # If it's a continuation line, add it to the last.
      # If it's an empty line, drop it from the input.
      if line =~ /^[ \t]/
        unfolded[-1] << line[1, line.size-1]
      elsif prior_line && (prior_line =~ Bnf::UNTERMINATED_QUOTED_PRINTABLE)
        # Strip the trailing = off prior line, then append current line
        unfolded[-1] = prior_line[0, prior_line.length-1] + line
      elsif line =~ /^$/
      else
        unfolded << line
      end
      prior_line = unfolded[-1]
    end

    unfolded
end