Contents

#!/usr/bin/env ruby

require 'hershey'
require 'optparse'

options = {}
OptionParser.new do |opts|
  opts.banner = "Usage: hershey [options]"

  opts.on("-w", "--width WIDTH", Integer, "Width of the pages") do |vars|
    options[:width] = vars
  end

  opts.on("-h", "--height HEIGHT", Integer, "The height per page (defaults to 8.5x11 ratio)") do |f|
    options[:height] = f
  end


  opts.on("-i", "--input INFILE", "The input file (required)") do |f|
    options[:input] = f
  end

  opts.on("-o", "--output OUTFILE", "The output file base name (required)") do |f|
    options[:output] = f
  end

  options[:max] = 100
  opts.on("-m", "--max MAX", Integer, "Max pages") do |range|
    options[:max] = range
  end

  opts.on("-o", "--output OUTFILE", "The output file base name") do |f|
    options[:output] = f
  end

  opts.on("-f", "--font FONT", Hershey::FONTS.keys, "The font to use") do |f|
    options[:font] = f.downcase
  end
  opts.separator("Fonts: #{Hershey::FONTS.keys.map {|k| k.to_s}.join(', ')}")

  opts.on("--help", "Shows this help message") do
    puts opts
    exit
  end
end.parse!

unless options[:width].is_a?(Integer)
  puts "Missing number of variables for equation"
  puts "Call with -h or --help for help"
  exit(1)
end

options[:height] ||= (options[:width] / 8.5 * 11 / 20).ceil * 20

pages = Hershey.svgs(File.read(options[:input]), options.select{|k,_| [:width,:height,:font].include?(k)})

pages.each_with_index do |page, i|
  f = "#{options[:output]}_#{i}.svg"
  puts "#{f}: #{page.each_char.inject(0) {|m,s| s == 'L' ? m + 1 : m}} line segments."
  open(f, 'w') {|f| f.write(page)}
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
hershey-0.0.7	bin/hershey