Class: Plist4r::Table
- Defined in:
- lib/plist4r/mixin/table.rb
Class Methods
Instance Methods
- array
- ascii_col_width
- auto_size
- cell
- cells
- col
- col_insert
- col_range
- col_replace
- crop
- data_replace
- each
- fill
- fill_all
- first
- initialize
- inspect
- inverse_fill
- map
- pad
- pad_all
- parse_opts
- replace
- resize
- row
- row_insert
- row_range
- row_replace
- size
- translate
- transpose
Overview
A data type representation for tables. The underlying store is an array of arrays (2d). The addressing scheme is based on (column, row) order, with Range objects to specify the bounds of any rectangle of elements withing the table.
A variety of methods are provided for manipulating the table data, including flipping, inserting, replacing and deleting. Operations can be column-based, row-based, or both.
Constant Summary
- EmptyCell =
The value to assign to an empty cell
nil
- EmptyCells =
The range of valid values for which match the empty cell criteria (for which the cell are ignored)
[nil, false]
- MinPadSize =
When allocating the arrays for a new table, the minimum size to pad around with empty cells.
10
- OptionsHash =
%w[ size array pad_all fill_all ]
Constructor Details
- (Table) initialize(*args, &blk)
A new instance of Table
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# File 'lib/plist4r/mixin/table.rb', line 52 def initialize *args, &blk @array = [] case args[0] when nil resize 0..0, 0..0 when Hash parse_opts args[0] when Plist4r::Table %w[ col_range row_range array ].each do |a| self.send a.to_sym, args[0].send(a.to_sym).deep_clone end else raise "unsupported type" end resize 0..0, 0..0 unless @cr && @rr end |
Class Method Details
+ (Object) sanitize_ranges(*ranges)
This class only understands a range addressing scheme, which is used to specify table locations in a [columns, rows] caresian system starting at col 0, row 0.
Convert any Integer numbers into range objects. Check that all input ranges are positive, starting (and including) zero as the first index.
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# File 'lib/plist4r/mixin/table.rb', line 19 def sanitize_ranges *ranges sanitized_ranges = [] ranges.flatten.each do |range| case range when Range if range.exclude_end? range = range.first..(range.last - 1) end when Integer range = (range..range) else raise "Unsupported type" end if range.first < 0 || range.last < 0 raise "range cannot cover negative values" end sanitized_ranges << range end sanitized_ranges end |
Instance Method Details
- (Object) array(array = nil)
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# File 'lib/plist4r/mixin/table.rb', line 181 def array array=nil case array when nil @array when Array if array.multidim? @array = array auto_size unless @cr && @rr else raise "array type not supported" end else raise "Unsupported type" end end |
- (Object) ascii_col_width
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# File 'lib/plist4r/mixin/table.rb', line 87 def ascii_col_width lines = self.inspect.split "\n" lines[0].length end |
- (Object) auto_size
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# File 'lib/plist4r/mixin/table.rb', line 214 def auto_size ce = @array.size - 1 unless @cr && (0..ce).include_range?(@cr) @cr = 0..ce end re = 0 @array.each do |col| re = col.size - 1 if col.size - 1 > re end unless @rr && (0..re).include_range?(@rr) @rr = 0..re end end |
- (Object) cell(col, row, value = nil)
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# File 'lib/plist4r/mixin/table.rb', line 138 def cell col, row, value=nil raise "unsupported type" unless col.is_a?(Integer) && row.is_a?(Integer) return nil if col < 0 || row < 0 case value when nil @array[col][row] else if value.is_a? Plist4r::Table @array[col][row] = value.cell col, row else @array[col][row] = value end end end |
- (Object) cells(col_range = nil, row_range = nil, value = nil)
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# File 'lib/plist4r/mixin/table.rb', line 404 def cells col_range=nil, row_range=nil, value=nil col_range = @cr if col_range.nil? ; row_range = @rr if row_range.nil? col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range replace col_range, row_range, value if value self.class.new :array => @array, :size => [col_range, row_range] end |
- (Object) col(col_range, value = nil)
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# File 'lib/plist4r/mixin/table.rb', line 412 def col col_range, value=nil col_range = Plist4r::Table.sanitize_ranges col_range case value when nil cells col_range, @rr else col_replace col_range, value end end |
- (Object) col_insert(col_range, row_range, other_data, resize = true)
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# File 'lib/plist4r/mixin/table.rb', line 390 def col_insert col_range, row_range, other_data, resize=true col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range translate col_range.first..@cr.last, @rr, [col_range.size, 0] replace col_range, row_range, other_data @cr = @cr.first..(@cr.last + col_range.size) if resize end |
- (Object) col_range
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# File 'lib/plist4r/mixin/table.rb', line 130 def col_range @cr end |
- (Object) col_replace(col_range, data)
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# File 'lib/plist4r/mixin/table.rb', line 370 def col_replace col_range, data col_range = Plist4r::Table.sanitize_ranges col_range replace col_range, @rr.first..@rr.last, data end |
- (Object) crop(col_range, row_range)
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# File 'lib/plist4r/mixin/table.rb', line 262 def crop col_range, row_range col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range pad col_range, row_range, EmptyCell crop_obj = self.class.new :size => [0..(col_range.size - 1), 0..(row_range.size - 1)] col_range.each do |col| row_range.each do |row| crop_obj.array[col-col_range.first][row-row_range.first] = @array[col][row].deep_clone end end crop_obj end |
- (Object) data_replace(col_range, row_range, other_data)
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# File 'lib/plist4r/mixin/table.rb', line 336 def data_replace col_range, row_range, other_data col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range self.pad col_range, row_range, EmptyCell o = other_data.deep_clone if o.col_range.size < col_range.size col_range = (col_range.first)..(row_range.first + o.col_range.size - 1) end if o.row_range.size < row_range.size row_range = (row_range.first)..(row_range.first + o.row_range.size - 1) end col_range.each do |col| row_range.each do |row| # @array[col][row] = o.array[col-col_range.first+o.col_range.first][row-row_range.first+o.row_range.first].deep_clone cell col, row, o.cell(col-col_range.first+o.col_range.first,row-row_range.first+o.row_range.first).deep_clone end end end |
- (Object) each(col_range = nil, row_range = nil, &blk)
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# File 'lib/plist4r/mixin/table.rb', line 171 def each col_range=nil, row_range=nil, &blk col_range = @cr if col_range.nil? ; row_range = @rr if row_range.nil? col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range row_range.each do |row| col_range.each do |col| yield cell(col, row) end end end |
- (Object) fill(col_range, row_range, data = nil)
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# File 'lib/plist4r/mixin/table.rb', line 276 def fill col_range, row_range, data=nil col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range data = EmptyCell unless data pad col_range, row_range, EmptyCell col_range.each do |c| row_range.each do |r| @array[c][r] = data.deep_clone end end end |
- (Object) fill_all(data)
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# File 'lib/plist4r/mixin/table.rb', line 288 def fill_all data fill @cr, @rr, data end |
- (Object) first(value = nil)
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# File 'lib/plist4r/mixin/table.rb', line 154 def first value=nil cell @cr.first, @rr.first, value end |
- (Object) inspect(start_col = 0)
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# File 'lib/plist4r/mixin/table.rb', line 92 def inspect start_col=0 cell_width = Plist4r::Table.new :size => [@cr, 0..0], :fill_all => 5 @cr.each do |col| @rr.each do |row| cell_size = @array[col][row].inspect.size cell_width.cell(col, 0, cell_size) if cell_size > cell_width.cell(col,0) end end col_pad_pre = " " col_pad_post = " " vert_border = "|" horz_border = "-" row_sep = "" row_sep << " " * start_col @cr.each do |col| row_sep << vert_border + horz_border * (col_pad_pre.size + cell_width.cell(col,0) + col_pad_post.size) end row_sep << vert_border o = "" o << row_sep << "\n" @rr.each do |row| o << " " * start_col @cr.each do |col| cell_str = vert_border + col_pad_pre + " " * cell_width.cell(col,0) + col_pad_post cell_str[vert_border.size+col_pad_pre.size,@array[col][row].inspect.size] = @array[col][row].inspect o << cell_str end o << vert_border o << "\n" o << row_sep << "\n" end return o end |
- (Object) inverse_fill(col_range, row_range, data = nil)
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# File 'lib/plist4r/mixin/table.rb', line 292 def inverse_fill col_range, row_range, data=nil col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range data = EmptyCell unless data crop_obj = crop col_range, row_range fill @cr, @rr, data replace col_range, row_range, crop_obj end |
- (Object) map(col_range = nil, row_range = nil, &blk)
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# File 'lib/plist4r/mixin/table.rb', line 158 def map col_range=nil, row_range=nil, &blk col_range = @cr if col_range.nil? ; row_range = @rr if row_range.nil? col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range t = Plist4r::Table.new :size => [col_range, row_range] row_range.each do |row| col_range.each do |col| t.cell col, row, yield(cell(col, row)) end end t end |
- (Object) pad(col_range, row_range, data)
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# File 'lib/plist4r/mixin/table.rb', line 230 def pad col_range, row_range, data col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range if EmptyCells.include? data if col_range.end < MinPadSize - 1 col_range = 0..(MinPadSize - 1) else col_range = 0..(col_range.end) end if row_range.end < MinPadSize - 1 row_range = 0..(MinPadSize - 1) else row_range = 0..(row_range.end) end end (col_range.end - @array.size + 1).times do @array << [] end col_range.each do |col| row_range.each do |row| @array[col][row] = data.deep_clone if EmptyCells.include? @array[col][row] end end end |
- (Object) pad_all(data)
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# File 'lib/plist4r/mixin/table.rb', line 258 def pad_all data pad @cr, @rr, data end |
- (Object) parse_opts(opts)
Sets up those valid (settable) attributes as found the options hash. Normally we dont call this method directly. Called from #initialize.
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# File 'lib/plist4r/mixin/table.rb', line 78 def parse_opts opts self.class::OptionsHash.each do |opt| if opts[opt.to_sym] value = opts[opt.to_sym] eval "self.#{opt}(value)" end end end |
- (Object) replace(col_range, row_range, data)
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# File 'lib/plist4r/mixin/table.rb', line 358 def replace col_range, row_range, data col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range case data when Plist4r::Table data_replace col_range, row_range, data else fill col_range, row_range, data end self end |
- (Object) resize(col_range, row_range)
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# File 'lib/plist4r/mixin/table.rb', line 206 def resize col_range, row_range col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range @cr = col_range @rr = row_range pad @cr, @rr, EmptyCell end |
- (Object) row(row_range, value = nil)
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# File 'lib/plist4r/mixin/table.rb', line 423 def row row_range, value=nil row_range = Plist4r::Table.sanitize_ranges row_range case value when nil cells @cr, row_range else row_replace row_range, value end end |
- (Object) row_insert(col_range, row_range, other_data, resize = true)
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# File 'lib/plist4r/mixin/table.rb', line 397 def row_insert col_range, row_range, other_data, resize=true col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range translate @cr, row_range.first..@rr.last, [0, row_range.size] replace col_range, row_range, other_data @rr = @rr.first..(@rr.last + row_range.size) if resize end |
- (Object) row_range
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# File 'lib/plist4r/mixin/table.rb', line 134 def row_range @rr end |
- (Object) row_replace(row_range, data)
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# File 'lib/plist4r/mixin/table.rb', line 375 def row_replace row_range, data row_range = Plist4r::Table.sanitize_ranges row_range replace @cr.first..@cr.last, row_range, data end |
- (Object) size(*args)
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# File 'lib/plist4r/mixin/table.rb', line 197 def size *args if args.empty? [@cr, @rr] else col_range, row_range = args.flatten resize col_range, row_range end end |
- (Object) translate(col_range, row_range, vector)
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# File 'lib/plist4r/mixin/table.rb', line 380 def translate col_range, row_range, vector col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range crop_obj = crop col_range, row_range fill col_range, row_range, EmptyCell col_range = (col_range.begin+vector[0])..(col_range.end+vector[0]) row_range = (row_range.begin+vector[1])..(row_range.end+vector[1]) replace col_range, row_range, crop_obj end |
- (Object) transpose(col_range = nil, row_range = nil, keep_bounds = false)
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# File 'lib/plist4r/mixin/table.rb', line 301 def transpose col_range=nil, row_range=nil, keep_bounds=false col_range = @cr if col_range.nil? ; row_range = @rr if row_range.nil? col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range if col_range == @cr && row_range == @rr && @cr.first == @rr.first @array = @array.transpose if keep_bounds @cr,@rr = [[@cr,@rr].min,[@cr,@rr].min] else @cr,@rr = [@rr, @cr] end self else col_range, row_range = Plist4r::Table.sanitize_ranges col_range, row_range crop_obj = crop col_range, row_range crop_obj.transpose fill col_range, row_range, EmptyCell ocr,orr = [col_range,row_range] col_range = (ocr.begin)..(ocr.begin+orr.size-1) row_range = (orr.begin)..(orr.begin+ocr.size-1) if keep_bounds && col_range.size != row_range.size if ocr.size > orr.size row_range = (row_range.begin)..(orr.end) else col_range = (col_range.begin)..(ocr.end) end end replace col_range, row_range, crop_obj end self end |