Class: DefaultColorParser

Inherits:
Object show all
Defined in:
lib/rbcurse/core/util/colorparser.rb

Overview

—————————————————————————– #

       File: colorparser.rb
Description: Default parse for our tmux format
             The aim is to be able to specify parsers so different kinds
             of formatting or documents can be used, such as ANSI formatted
             manpages.
     Author: rkumar http://github.com/rkumar/rbcurse/
       Date: 07.11.11 - 13:17
    License: Same as Ruby's License (http://www.ruby-lang.org/LICENSE.txt)
Last update: use ,,L

—————————————————————————– #

TODO

- perhaps we can compile the regexp once and reuse

Instance Method Summary collapse

Instance Method Details

#parse_format(s) ⇒ nil

NOTE: Experimental and minimal parses the formatted string and yields either an array of color, bgcolor and attrib or the text. This will be called by convert_to_chunk.

Currently, assumes colors and attributes are correct. No error checking or fancy stuff.

s="#[fg=green]hello there#[fg=yellow, bg=black, dim]"

Returns:

  • (nil) —

    knows nothign about output format.

Since:

  • 1.4.1 2011-11-3 experimental, can change



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# File 'lib/rbcurse/core/util/colorparser.rb', line 27

def parse_format s  # yields attribs or text
  ## set default colors
  color   = :white
  bgcolor = :black
  attrib  = FFI::NCurses::A_NORMAL
  text    = ""

  ## split #[...]
  a       = s.split /(#\[[^\]]*\])/
  a.each { |e| 
    ## process color or attrib portion
    if e[0,2] == "#[" && e[-1] == "]"
      # now resetting 1:20 PM November 3, 2011 , earlier we were  carrying over
      color, bgcolor, attrib = nil, nil, nil
      catch(:done) do
        e = e[2..-2]
        ## first split on commas to separate fg, bg and attr
        atts = e.split /\s*,\s*/
        atts.each { |att|  
          ## next split on =
          part = att.split /\s*=\s*/
          case part[0]
          when "fg"
            color = part[1]
          when "bg"
            bgcolor = part[1]
          when "/end", "end"
            yield :endcolor if block_given?
            #next
            throw :done
          else
            # attrib
            attrib = part[0]
          end
        }
        yield [color,bgcolor,attrib] if block_given?
      end # catch
    else
      text = e
      yield text if block_given?
    end
  }
end