Class: TimeCursor::Matcher

Inherits:
Object
  • Object
show all
Defined in:
lib/time_cursor/matcher.rb

Instance Method Summary collapse

Constructor Details

#initialize(year: '*', month: '*', day: '*', wday: '*', hour: '*', min: '*', sec: 0, msec: nil) ⇒ Matcher

Returns a new instance of Matcher.



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# File 'lib/time_cursor/matcher.rb', line 8

def initialize( year: '*', month: '*', day: '*', wday: '*', hour: '*', min: '*', sec: 0, msec: nil )
  if  msec.nil?
    @years    =  Elements.build( year           )
    @months   =  Elements.build( month,  1..12  )
    @days     =  Elements.build( day,    1..31  )
    @wdays    =  Elements.build( wday,   0..6   )
    @hours    =  Elements.build( hour,   0..23  )
    @mins     =  Elements.build( min,    0..59  )
    @secs     =  Elements.build( sec,    0..59  )
    @usecs    =  Elements.new

    if  !@years.empty? || !@months.empty? || !@days.empty? || !@wdays.empty?
      @next_for  =  :next_for_date
      @prev_for  =  :prev_for_date

    elsif  !@hours.empty? || !@mins.empty?
      @next_for  =  :next_for_time
      @prev_for  =  :prev_for_time

    else
      @secs  =  Elements.build( '0-59', 0..59 )    if @secs.empty?
      @next_for  =  :next_for_sec
      @prev_for  =  :prev_for_sec

    end

  else
    @years    =  Elements.new
    @months   =  Elements.new
    @days     =  Elements.new
    @wdays    =  Elements.new
    @hours    =  Elements.new
    @mins     =  Elements.new
    @secs     =  Elements.new
    @usecs    =  Elements.build( msec,   0..999 )
    @usecs.each_with_index do |item, ndx|
      @usecs[ndx]  *= 1000
    end

    @next_for  =  :next_for_usec
    @prev_for  =  :prev_for_usec

  end
end

Instance Method Details

#back_to_day(time, day) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 313

def back_to_day( time, day )
  date  =  Date.new( time.year, time.month, time.day )
  loop do
    date  =  date.prev_day
    break    if  date.day == day
  end
  date  =  date.next_day
  Time.new( date.year, date.month, date.day ) - 1
end

#back_to_hour(time, hour) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 333

def back_to_hour( time, hour )
  time  -=  60 * 60 * 24    if  time.hour <= hour
  Time.new( time.year, time.month, time.day, hour, 59, 59 )
end

#back_to_min(time, min) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 338

def back_to_min( time, min )
  time  -=  60 * 60    if  time.min <= min
  Time.new( time.year, time.month, time.day, time.hour, min, 59 )
end

#back_to_month(time, month) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 303

def back_to_month( time, month )
  date  =  Date.new( time.year, time.month, time.day )
  loop do
    date  =  date.prev_month
    break    if  date.month == month
  end
  date  =  date.next_month
  Time.new( date.year, date.month ) - 1
end

#back_to_sec(time, sec) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 343

def back_to_sec( time, sec )
  time  -=  60    if  time.sec <= sec
  Time.new( time.year, time.month, time.day, time.hour, time.min, sec )
end

#back_to_usec(time, usec) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 348

def back_to_usec( time, usec )
  time  -=  1    if  time.usec < usec
  Time.local( time.year, time.month, time.day, time.hour, time.min, time.sec, usec )
end

#back_to_wday(time, wday) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 323

def back_to_wday( time, wday )
  date  =  Date.new( time.year, time.month, time.day )
  loop do
    date  =  date.prev_day
    break    if  date.wday == wday
  end
  date  =  date.next_day
  Time.new( date.year, date.month, date.day ) - 1
end

#back_to_year(time, year) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 295

def back_to_year( time, year )
  if year < time.year
    Time.new( year + 1 ) - 1
  else
    nil
  end
end

#forward_to_day(time, day) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 257

def forward_to_day( time, day )
  date  =  Date.new( time.year, time.month, time.day )
  loop do
    date  =  date.next_day
    break    if  date.day == day
  end
  Time.new( date.year, date.month, date.day )
end

#forward_to_hour(time, hour) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 275

def forward_to_hour( time, hour )
  time  +=  60 * 60 * 24    if hour <= time.hour
  Time.new( time.year, time.month, time.day, hour )
end

#forward_to_min(time, min) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 280

def forward_to_min( time, min )
  time  +=  60 * 60    if min <= time.min
  Time.new( time.year, time.month, time.day, time.hour, min )
end

#forward_to_month(time, month) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 248

def forward_to_month( time, month )
  date  =  Date.new( time.year, time.month, time.day )
  loop do
    date  =  date.next_month
    break    if  date.month == month
  end
  Time.new( date.year, date.month )
end

#forward_to_sec(time, sec) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 285

def forward_to_sec( time, sec )
  time  +=  60    if sec <= time.sec
  Time.new( time.year, time.month, time.day, time.hour, time.min, sec )
end

#forward_to_usec(time, usec) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 290

def forward_to_usec( time, usec )
  time  +=  1    if  usec <= time.usec
  Time.local( time.year, time.month, time.day, time.hour, time.min, time.sec, usec )
end

#forward_to_wday(time, wday) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 266

def forward_to_wday( time, wday )
  date  =  Date.new( time.year, time.month, time.day )
  loop do
    date  =  date.next_day
    break    if  date.wday == wday
  end
  Time.new( date.year, date.month, date.day )
end

#forward_to_year(time, year) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 240

def forward_to_year( time, year )
  if time.year < year
    Time.new( year )
  else
    nil
  end
end

#match(time = Time.now) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 75

def match( time = Time.now )
  case  time
  when  Time
  when  String
    time  =  Time.parse( time )
  else
    raise  ArgumentError, "can not parse as time."
  end

  if  @years.correspond?( time.year )  &&
      @months.correspond?( time.month )  &&
      @days.correspond?( time.day )  &&
      @hours.correspond?( time.hour )  &&
      @mins.correspond?( time.min )  &&
      @secs.correspond?( time.sec )
    time
  else
    nil
  end
end

#next(time = Time.now) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 53

def next( time = Time.now )
  case  time
  when  Time
  when  String
    time  =  Time.parse( time )
  else
    raise  ArgumentError, "can not parse as time."
  end
  send( @next_for, time )
end

#next_for_date(time) ⇒ Object

private



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# File 'lib/time_cursor/matcher.rb', line 98

def next_for_date( time )
  time  +=  1
  loop do
    if  !@years.correspond?( year = time.year )
      year  =  @years.right( year )
      return  time  =  nil   if  year.nil?
      time  =  forward_to_year( time, year )

    elsif  !@months.correspond?( month = time.month )
      month  =  @months.right( month ) || @months.first
      time  =  forward_to_month( time, month )

    elsif  !@wdays.correspond?( wday = time.wday )
      wday  =  @wdays.right( wday ) || @wdays.first
      time  =  forward_to_wday( time, wday )

    elsif  !@days.correspond?( day = time.day )
      day  =  @days.right( day ) || @days.first
      time  =  forward_to_day( time, day )

    elsif  !@hours.correspond?( hour = time.hour )
      hour  =  @hours.right( hour ) || @hours.first
      time  =  forward_to_hour( time, hour )

    elsif  !@mins.correspond?( min = time.min )
      min  =  @mins.right( min ) || @mins.first
      time  =  forward_to_min( time, min )

    elsif  !@secs.correspond?( sec = time.sec )
      sec  =  @secs.right( sec ) || @secs.first
      time  =  forward_to_sec( time, sec )

    else
      return  time

    end
  end
end

#next_for_sec(time) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 159

def next_for_sec( time )
  sec  =  @secs.right( time.sec ) || @secs.first
  time  =  forward_to_sec( time, sec )
end

#next_for_time(time) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 137

def next_for_time( time )
  time  +=  1
  loop do
    if  !@hours.correspond?( hour = time.hour )
      hour  =  @hours.right( hour ) || @hours.first
      time  =  forward_to_hour( time, hour )

    elsif  !@mins.correspond?( min = time.min )
      min  =  @mins.right( min ) || @mins.first
      time  =  forward_to_min( time, min )

    elsif  !@secs.correspond?( sec = time.sec )
      sec  =  @secs.right( sec ) || @secs.first
      time  =  forward_to_sec( time, sec )

    else
      return  time

    end
  end
end

#next_for_usec(time) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 164

def next_for_usec( time )
  usec  =  @usecs.right( time.usec ) || @usecs.first
  time  =  forward_to_usec( time, usec )
end

#prev(time = Time.now) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 64

def prev( time = Time.now )
  case  time
  when  Time
  when  String
    time  =  Time.parse( time )
  else
    raise  ArgumentError, "can not parse as time."
  end
  send( @prev_for, time )
end

#prev_for_date(time) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 169

def prev_for_date( time )
  time  -=  1
  loop do
    if  !@years.correspond?( year = time.year )
      year  =  @years.left( year )
      return  time  =  nil    if  year.nil?
      time  =  back_to_year( time, year )

    elsif  !@months.correspond?( month = time.month )
      month  =  @months.left( month ) || @months.last
      time  =  back_to_month( time, month )

    elsif  !@wdays.correspond?( wday = time.wday )
      wday  =  @wdays.left( wday ) || @wdays.last
      time  =  back_to_wday( time, wday )

    elsif  !@days.correspond?( day = time.day )
      day  =  @days.left( day ) || @days.last
      time  =  back_to_day( time, day )

    elsif  !@hours.correspond?( hour = time.hour )
      hour  =  @hours.left( hour ) || @hours.last
      time  =  back_to_hour( time, hour )

    elsif  !@mins.correspond?( min = time.min )
      min  =  @mins.left( min ) || @mins.last
      time  =  back_to_min( time, min )

    elsif  !@secs.correspond?( sec = time.sec )
      sec  =  @secs.left( sec ) || @secs.last
      time  =  back_to_sec( time, sec )

    else
      return  time

    end
  end
end

#prev_for_sec(time) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 230

def prev_for_sec( time )
  sec  =  @secs.left( time.sec ) || @secs.last
  time  =  back_to_sec( time, sec )
end

#prev_for_time(time) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 208

def prev_for_time( time )
  time  -=  1
  loop do
    if  !@hours.correspond?( hour = time.hour )
      hour  =  @hours.left( hour ) || @hours.last
      time  =  back_to_hour( time, hour )

    elsif  !@mins.correspond?( min = time.min )
      min  =  @mins.left( min ) || @mins.last
      time  =  back_to_min( time, min )

    elsif  !@secs.correspond?( sec = time.sec )
      sec  =  @secs.left( sec ) || @secs.last
      time  =  back_to_sec( time, sec )

    else
      return  time

    end
  end
end

#prev_for_usec(time) ⇒ Object 



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# File 'lib/time_cursor/matcher.rb', line 235

def prev_for_usec( time )
  usec  =  @usecs.left( time.usec ) || @usecs.last
  time  =  back_to_usec( time, usec )
end