class LuaApi

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
Dieses Programm ist Freie Software: Sie können es unter den Bedingungen
der GNU General Public License, wie von der Free Software Foundation,
Version 3 der Lizenz oder (nach Ihrer Wahl) jeder neueren
veröffentlichten Version, weiter verteilen und/oder modifizieren.
Dieses Programm wird in der Hoffnung bereitgestellt, dass es nützlich sein wird, jedoch
OHNE JEDE GEWÄHR,; sogar ohne die implizite
Gewähr der MARKTFÄHIGKEIT oder EIGNUNG FÜR EINEN BESTIMMTEN ZWECK.
Siehe die GNU General Public License für weitere Einzelheiten.
Sie sollten eine Kopie der GNU General Public License zusammen mit diesem
Programm erhalten haben. Wenn nicht, siehe <http://www.gnu.org/licenses/>.

end¶ ↑

Attributes

type[RW]

Public Class Methods

new() click to toggle source

# File lib/luaapi.rb, line 39
def initialize
  begin
    File.open "./lua_api-in.txt", "w" do |f|
      f.write "print(_VERSION)"
      f.close
    end
    
    IO.popen "lua ./lua_api-in.txt" do |p|
      @version = p.gets
      p.close
    end
    
    @type = 0
  rescue Errno::ENOENT => e
    @type = 1
    uri = URI("https://www.lua.org/cgi-bin/demo")
    https = Net::HTTP.new(uri.host, uri.port)
    https.use_ssl = true
    req = Net::HTTP::Post.new(uri.path)
    req.body = "input=" + URI::encode("print(_VERSION)") 
    res = https.request(req)
    if res.code == "200"
      @version = res.body.match(/<H2>Output<\/H2>\n<TEXTAREA ROWS="8" COLS="80">\n(.*)\n<\/TEXTAREA><P><IMG SRC="images\/ok.png" ALIGN="absbottom">\nYour program ran successfully\./m)[1]
    else
      @type = 2
      raise RuntimeError, "No interpreter found!"
    end
  end
end

Public Instance Methods

close() click to toggle source

# File lib/luaapi.rb, line 128
def close
  File.delete "./lua_api-in.txt" if File.exist? "./lua_api-in.txt"
  @type = 2
end

good?() click to toggle source

# File lib/luaapi.rb, line 73
def good?
  true unless @type == 2
end

interpret(code) click to toggle source

# File lib/luaapi.rb, line 77
def interpret code
  case @type
    when 0
      File.open "./lua_api-in.txt", "w" do |f|
        f.write code
        f.close
      end
    
      begin
        IO.popen "lua ./lua_api-in.txt" do |p|
          @result = p.gets
          p.close
        end
      rescue Errno::ENOENT => e
        raise RuntimeError, "No interpreter found!"
      end
    when 1
      uri = URI("https://www.lua.org/cgi-bin/demo")
      https = Net::HTTP.new(uri.host, uri.port)
      https.use_ssl = true

      req = Net::HTTP::Post.new(uri.path)
      req.body = "input=" + URI::encode(code) 
      res = https.request(req)

      if res.code == "200"
        r = res.body.match(/<H2>Output<\/H2>\n<TEXTAREA ROWS="8" COLS="80">\n(.*)\n<\/TEXTAREA><P><IMG SRC="images\/ok.png" ALIGN="absbottom">\nYour program ran successfully\./m)
        unless r
          r = res.body.match(/<H2>Output<\/H2>\n<TEXTAREA ROWS="8" COLS="80">\n(.*)<\/TEXTAREA><P><IMG SRC="images\/alert.png" ALIGN="absbottom">\nYour program failed to compile\./m)
        end
        unless r
          r = res.body.match(/<H2>Output<\/H2>\n<TEXTAREA ROWS="8" COLS="80">\n(.*)<\/TEXTAREA><P><IMG SRC="images\/alert.png" ALIGN="absbottom">\nYour program failed to run\./m)
        end
        unless r
          r = res.body.match(/<H2>Output<\/H2>\n<TEXTAREA ROWS="8" COLS="80">\n(.*)<\/TEXTAREA><P><IMG SRC="images\/alert.png" ALIGN="absbottom">\nYour program was aborted\./m)
        end
        @result = nil unless r
        @result = r[1]
      else
        raise RuntimeError, "Online Interpreter not available!"
      end
    when 2
      raise RuntimeError, "No interpreter found!"
  end
  return @result
end

result() click to toggle source

# File lib/luaapi.rb, line 124
def result
  @result
end

version?() click to toggle source

# File lib/luaapi.rb, line 69
def version?
  return @version
end