method

substitute_into

Ruby latest stable (v2_5_5) - 0 notes - Class: TemplatePage

1_8_6_287 (0)
1_8_7_72 (0)
1_8_7_330 (0)
1_9_1_378
1_9_2_180
1_9_3_125
1_9_3_392
2_1_10
2_2_9
2_4_6
2_5_5
2_6_3
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v1_8_7_330) is shown here.

substitute_into(lines, values) public

Substitute a set of key/value pairs into the given template. Keys with scalar values have them substituted directly into the page. Those with array values invoke substitute_array (below), which examples a block of the template once for each row in the array.

This routine also copes with the IF:key directive, removing chunks of the template if the corresponding key does not appear in the hash, and the START: directive, which loops its contents for each value in an array

Show source

# File lib/rdoc/template.rb, line 161
  def substitute_into(lines, values)
    @context.push(values)
    skip_to = nil
    result = []

    while line = lines.read

      case line

      when /^IF:(\w+)/
        lines.read_up_to(/^ENDIF:#$1/) unless @context.lookup($1)

    when /^IFNOT:(\w+)/
        lines.read_up_to(/^ENDIF:#$1/) if @context.lookup($1)

      when /^ENDIF:/
        ;

      when /^START:(\w+)/
        tag = $1
        body = lines.read_up_to(/^END:#{tag}/)
        inner_values = @context.lookup(tag)
        raise "unknown tag: #{tag}" unless inner_values
        raise "not array: #{tag}"   unless inner_values.kind_of?(Array)
        inner_values.each do |vals|
          result << substitute_into(body.dup, vals)
        end
      else
        result << expand_line(line.dup)
      end
    end

    @context.pop

    result.join("\n")
  end

substitute_into

Related methods

Method deprecated or moved