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module WikiCloth
class WikiBuffer::Table < WikiBuffer
def initialize(data="",options={})
super(data,options)
self.buffer_type = "table"
@start_table = true
@start_row = false
@start_caption = false
@in_quotes = false
end
def table_caption
@caption ||= ""
return @caption.kind_of?(Hash) ? @caption[:value] : @caption
end
def table_caption_attributes
@caption.kind_of?(Hash) ? @caption[:style] : ""
end
def rows
@rows ||= [ [] ]
end
def to_html
row_count = 0
ret = "<table" + (params[0].blank? ? "" : " #{params[0].strip}") + ">"
ret += "<caption" + (self.table_caption_attributes.blank? ? "" : " #{table_caption_attributes.strip}") +
">#{table_caption.strip}</caption>" unless self.table_caption.blank?
for row in rows
row_count += 1
unless row.empty?
ret += "<tr" + (params[row_count].nil? || params[row_count].blank? ? "" : " #{params[row_count].strip}") + ">"
for cell in row
cell_attributes = cell[:style].blank? ? "" : parse_attributes(cell[:style].strip).collect { |k,v| "#{k}=\"#{v}\"" }.join(" ")
cell_attributes = cell_attributes.blank? ? "" : " #{cell_attributes}"
ret += "<#{cell[:type]}#{cell_attributes}>\n#{cell[:value].strip}\n</#{cell[:type]}>"
end
ret += "</tr>"
end
end
ret += "</table>"
end
protected
def parse_attributes(data)
attribute_name = nil
in_quotes = false
quote_type = nil
ret = {}
d = ""
prev_char = nil
for char in data.each_char
case
when char == "=" && attribute_name.nil? && in_quotes == false
attribute_name = d.strip
d = ""
when (char == '"' || char == "'") && in_quotes == false && !attribute_name.nil?
in_quotes = true
quote_type = char
when (char == quote_type && in_quotes == true && prev_char != '\\') || (char == ' ' && in_quotes == false && !d.blank?)
ret[attribute_name] = d if WikiBuffer::HTMLElement::ALLOWED_ATTRIBUTES.include?(attribute_name)
attribute_name = nil
in_quotes = false
d = ""
else
prev_char = char
d += char
end
end
ret
end
def rows=(val)
@rows = val
end
def table_caption_attributes=(val)
@caption = { :style => val, :value => self.table_caption } unless @caption.kind_of?(Hash)
@caption[:style] = val if @caption.kind_of?(Hash)
end
def table_caption=(val)
@caption = val unless @caption.kind_of?(Hash)
@caption[:value] = val if @caption.kind_of?(Hash)
end
def next_row()
self.params << ""
self.rows << []
end
def next_cell(type="td")
if self.rows[-1].size == 0
self.rows[-1] = [ { :type => type, :value => "", :style => "" } ]
else
self.rows[-1][-1][:value] = self.data
self.rows[-1] << { :type => type, :value => "", :style => "" }
end
end
def new_char()
if @check_cell_data == 1
case
when current_char != '|' && @start_caption == false && (self.rows[-1][-1].nil? || self.rows[-1][-1][:style].blank?)
self.next_cell() if self.rows[-1][-1].nil?
self.rows[-1][-1][:style] = self.data
self.data = ""
when current_char != '|' && @start_caption == true && self.table_caption_attributes.blank?
self.table_caption_attributes = self.data
self.data = ""
end
@check_cell_data = 0
end
case
# Next table cell in row (TD)
when current_char == "|" && (previous_char == "\n" || previous_char == "|") && @in_quotes == false
self.data.chop! if self.data[-1,1] == "|"
self.next_cell() unless self.data.blank? && previous_char == "|"
self.data = ""
# Next table cell in row (TH)
when current_char == "!" && (previous_char == "\n" || previous_char == "!") && @in_quotes == false
self.data.chop!
self.next_cell('th')
self.data = ""
# End of a table
when current_char == '}' && previous_char == '|'
self.data = ""
self.rows[-1].pop
return false
# Start table caption
when current_char == '+' && previous_char == '|' && @in_quotes == false
self.data = ""
self.rows[-1].pop
@start_caption = true
# Table cell might have attributes
when current_char == '|' && previous_char != "\n" && @in_quotes == false
@check_cell_data = 1 unless @start_table
# End table caption
when current_char == "\n" && @start_caption == true && @in_quotes == false
@start_caption = false
self.table_caption = self.data
self.data = ""
# in quotes
when current_char == '"' && previous_char != '\\'
@in_quotes = !@in_quotes
self.data += '"'
# Table params
when current_char == "\n" && @start_table == true && @in_quotes == false
@start_table = false
unless self.data.blank?
self.current_param = self.data
self.params << ""
end
self.data = ""
# Table row params
when current_char == "\n" && @start_row == true && @in_quotes == false
@start_row = false
unless self.data.blank?
self.current_param = self.data
end
self.data = ""
# Start new table row
when current_char == '-' && previous_char == '|' && @in_quotes == false
self.data.chop!
self.rows[-1].pop
self.next_row()
@start_row = true
else
self.data << current_char
end
return true
end
end
end
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