DZone Snippets: Bugmenot's Code Snippets

Allow saving of nested objects

bugmenot (BugMeNot) — Fri, 19 Jan 2007 16:49:42 GMT

Small extention to allow save data from form with nested data from inputs like "organization[place_data][address]"

Inspired by http://weblog.jamisbuck.org/2007/1/11/moving-associated-creations-to-the-model



ActiveRecord::Base::ClassMethods.class_eval do

  # Allows set data it nested way from form for has_one and belongs_to associations

  # add association_data= method that asset Hash

  # Example: allow_data_update_for :place to allow saving input fields with names like "organization[place_data][address]"

  # Inspired by http://weblog.jamisbuck.org/2007/1/11/moving-associated-creations-to-the-model

  def allow_data_update_for(association)

    define_method "#{association}_data=" do |data|

      if self.send(association)

        self.send(association).attributes = data

        instance_eval "@update_#{association}_on_save = true"

      else

        self.send("build_#{association}", data)

      end

    end

    before_update do |obj|

      obj.send(association).save if obj.instance_variable_get("@update_#{association}_on_save")

    end

  end

end

Particle Swarm Optimization

bugmenot (BugMeNot) — Fri, 19 Jan 2007 00:14:49 GMT

Particle Swarm Optimization written in Python, more infos and a pretty printer here : http://www.biais.org/blog/index.php/2007/01/14/13-metaheuristic-particle-swarm-optimization-pso-in-python



# Particle swarm optimization

# Maxime Biais : 



from random import uniform

 

class PSO:

    def __init__(self, pop_size, min, max, phi, phi2, lr, maxiter, func):

        self.func = func

        self.pop = []

        # 0: position, 1: velocity, 2: fitness

        self.min = min

        self.max = max

        for i in xrange(pop_size):

            self.pop.append([uniform(self.min, self.max), 

                                   uniform(-1, 1), 0])

        self.evaluate()

        self.gdest = self.pop[0]

        self.pdest = self.pop[0]

        self.phi = phi

        self.phi2 = phi2

        self.lr = lr

        self.maxiter = maxiter

    

    def update_velocity(self):

        for i in self.pop:

            i[1] = self.lr * i[1] + uniform(0, self.phi) \

                    * (self.pdest[0] - i[0]) + uniform(0, self.phi2) \

                    * (self.gdest[0] - i[0])

 

    def evaluate(self):

        for i in self.pop:

            i[2] = self.func(i[0])

 

    def move(self):

        for i in self.pop:

            i[0] += i[1]

 

    def __cmp_by_fitness(self, a, b):

        return cmp(a[2], b[2])

    

    def run(self, update_func=False):

        for i in xrange(self.maxiter):

            if update_func:

                update_func()

            self.update_velocity()

            self.move()

            self.evaluate()

            self.pop.sort(self.__cmp_by_fitness, reverse=0)

            self.pdest = self.pop[0]

            if self.pdest[2] < self.gdest[2]:

                self.gdest = self.pdest

test

bugmenot (BugMeNot) — Thu, 07 Dec 2006 17:47:00 GMT

// description of your code here



	if (in_array($r["type"], Array(1, print str_replace("; ;","",(get_part_of_text($desc, 300)));

	else { $sql->query("SELECT of.phone FROM offers o, offices of

			WHERE o.office_id=of.id AND o.id=".$r["id"]);

		list($office_phone) = $sql->getrow(

print (str_replace("; ;","",(get_part_of_text($desc,300))))."
Contacts:".$office_phone;

	}

Latex2wiki

bugmenot (BugMeNot) — Tue, 17 Oct 2006 12:10:39 GMT

Translate a subset of LaTeX into MoinMoin wiki syntax.



#!/usr/bin/env python



#    Copyright (C) 2003, Maxime Biais 

#

#    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 2 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, write to the Free Software

#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#

# $Id: latex2wiki.py,v 1.1.1.1 2004/03/14 18:31:50 max Exp $



import sys, re



def dummy(d):

    pass



NONE = "__@NONE@__"



tr_list = [

    (r"\\includegraphics.*{(.*)\.eps}", "attachment::%s.png", dummy),

    (r"\\caption{.*}", "", dummy),

    (r"\\label{.*}", "", dummy),

    (r"(.*)\\emph{(.*)}(.*)", """%s'''%s'''%s""", dummy),

    (r"\\item (.*)", " * %s", dummy),

    (r"\\begin{.*}", "", dummy),

    (r"\\end{.*}", "", dummy),

    (r"(.*)``(.*)''(.*)", "%s\"%s\"%s", dummy),

    (r"\\chapter{(.*)}", NONE, dummy),

    (r"\\paragraph{(.*)}", "==== %s ====", dummy),

    (r"\\subsubsection{(.*)}", "==== %s ====", dummy),

    (r"\\subsection{(.*)}", "=== %s ===", dummy),

    (r"\\section{(.*)}", "== %s ==", dummy),

    (r"(.*)\\fig{.*}(.*)", "%s suivant %s", dummy)

    ]



in_stream  = open(sys.argv[1], "r")

if len(sys.argv) < 3:

    out_stream = sys.stdout

else:

    out_stream = open(sys.argv[2], "w")





for i in in_stream.readlines():

    cur_write = 0

    for reg in tr_list:

        m = re.search(reg[0], i)

        if m:

            reg[2](i)

            cur_write = 1

            if reg[1] == NONE:

                break

            print >> out_stream, reg[1] % m.groups()

            break

    if not cur_write:

        out_stream.write(i)

Mirkwood Mana Gear

bugmenot (BugMeNot) — Tue, 08 Aug 2006 12:23:31 GMT

Item Location Mana Level Weight Area Mob Other
Bic Lighter 01 – Light 30 50 2 Rocky Horror Hit +2
Orb Of Higher Thought 01 – Light 30 60 5 Ethereal Hit -1, Dam -2
Human Skull 02 – Head 60 75 20 Labyrinth
Gold Crown 02 – Head 40 68 30 Dungeons of the Empire Wis/Int +2, Dex -2
Big Red Face 02 – Head 35 45 7 Ultima HP +20
Green Mane of Demon Hair 02 – Head 30 83 5 Mordor
Helm of the Overlord 02 – Head 25 90 15 Tarius HP + 30
Crown of Lord British 02 – Head 25 58 10 Ultima Wis/Int +2
Glowing Red Stone 02 – Head 22 40 9 Kull's Int/Str +1
A Pair of Cool Shades 02 – Head 15 75 5 Restaurant Int/Hit +1
A Beanie 02 – Head 15 42 10 Wonderland HP +48, wis -2, int -1
Helmet of the Sentri 02 – Head 15 33 30 Ultima Sentri Wis +2
Elven Chainmail Coif 02 – Head 10 30 10 Lothlorian Legolas Wis +2
Elf Wrought Mithril Coif 02 – Head 5 25 10 Lothlorian Rumil Dex +1
Amulet of Ra 03 – Neck 50 57 1 Olympus Ra
Priests's Color 03 – Neck 40 60 20 Abbey Abbott
Sun Blazoned Ankh 03 – Neck 30 25 10 4th Tower
Evil Charm 03 – Neck 25 36 3 Ultima Int +1
Radient Necklace 03 – Neck 25 54 2 Olympus Athena
Amulet of Laurelin 03 – Neck 25 74 4 Myrillin Will -5
Cold Steel Ankh 03 – Neck 18 20 5 4th Tower
Holy Symbol 03 – Neck 15 21 2 Dragon Tower
Small Diamond Brooch 03 – Neck 15 19 2 Dragon Tower
Officer's Brooch 03 – Neck 10 31 3 Dragon Tower HP +10
Magic Cloak 03 – Neck 10 33 6 Ultima HP +10
Golden Holy Symbol 03 – Neck 10 27 3 Mahn-Tor
Niphrodal Shaped Amulet 03 – Neck 10 29 5 :Lothlorien Elven Cleric Wis +2
Fellowship Medallion 03 – Neck 10 34 6 Ultima Wis -1
Bright Orange Robe 03 – Neck 10 40 15 Restaurant
Dark Blue Coak 03 – Neck 5 18 2 Wyvern AC -6
Robe of the Magi 04 – About Body 50 54 10 Magnus Will -5
Wispy Cloak 04 – About Body 50 76 30 Labyrinth Wis +2
Cloak of Fire 04 – About Body 50 80 3 Mordor
Aura of Wisdom 04 – About Body 20 42 3 Myrillin Obwan
Linen Robe 04 – About Body 5 3 5 Dwarven Daycare Wis +1
Sequined Jacket 05 – On Body 50 57 15 Restaurant
Delion's Leather Jacket 05 – On Body 45 69 5 Museum
Cloak of Many Colors 05 – On Body 45 65 13 Isengard
Hair Shirt 05 – On Body 40 40 80 Abbey Monk Wis +2
Elven Chainmail Shirt 05 – On Body 30 83 3 Helm's Deep
Waterfall Cloak 05 – On Body 25 27 6 Elemental Canyon Water Ruler Hit -2
Black Turtleneck 05 – On Body 25 50 20 Museum Dex +1
Elf Wrought Mithril Jerkin 05 – On Body 5 26 10 Lothlorian Rumil Dex +1
Black Sleeves 06 – Arms 40 90 15 Mordor
Elf Wrought Mithril Armbands 06 – Arms 5 26 10 Lothlorian Rumil Hit +1
Clear Plastic Bracelet 07 – Wrist 40 70 5 Mos Eisley Retired Jedi Knight
Dalis Melting Watch 07 – Wrist 35 70 10 MOMA HP +25, Int +1
Mom Tattoo 07 – Wrist 30 55 5 Ocean
Ruby Bracer 07 – Wrist 30 62 10 Mordor
Steel Bracer 07 – Wrist 5 80 20 Solace Lieutenant
Shield of the Lesser Maiar 08 – Shield 35 81 10 Mordor Int +2
Shield of Defense 08 – Shield 10 11 15 Dwarven Catacombs HP +10, Dam -1, Hit -2
Elf Wrought Mithril Shield 08 – Shield 5 26 20 Lothlorian Rumil AC -3
Mithril Armored Gauntlets 09 – Hands 5 23 5 Lothlorian Haldir Con +1
Ring of Myril 10 – Finger 40 58 3 Myrillin Farin Wis +1
Dwarven Ring of Power 10 – Finger 40 85 3 Mordor Int +1, Dex +2
Ring of Lloth 10 – Finger 40 20 10 Drow Str +1, Perm Blind
Ghostly Ring 10 – Finger 40 20 10 Undead Forum Int +1
Ring of Evil 10 – Finger 40 70 5 Tarius Hit/Dam +2, Dex +1
A Banded Ring 10 – Finger 30 28 2 Mahn-Tor
Ring of Destiny 10 – Finger 25 24 3 Galaxy Int +2
Small Emerald Ring 10 – Finger 20 48 5 High Tower of Sorcery Grand Mistress
Ring of the Universe 10 – Finger 10 28 3 Galaxy HP +30
Gold Ring 10 – Finger 10 25 1 Valley of the Elves
Mechanic's Utility Belt 11 – Waist 50 70 10 Mos Eisley Dam +2
Elf Wrought Mithril Girth 11 – Waist 5 25 10 Lothlorian Rumil Dam +1
Wispy Greaves 12 – Legs 30 76 30 Labyrinth Wis/Int +2
Fishnet Stockings 12 – Legs 30 75 4 Rocky Horror Dex +1
Some Elven Chainmail Graves 12 – Legs 20 83 3 Helm's Deep
Elf Wrought Mithril Skirt 12 – Legs 5 23 10 Lothlorian Haldir Wis +1
Ruby Slippers 13 – Feet 30 40 4 Emerald City Toto Anti Dwarf/Treant/Giant/Orc/Male
Mithril Armored Boots 13 – Feet 5 23 10 Lothlorian Haldir Wis +1
Palantir 14 – Held 60 60 8 Isengard Saruman Wis/Int +3
Note From The Author 14 – Held 50 75 1 Labyrinth Hit/Dam +7, HP +50
Eyeglass 14 – Held 35 65 1 Ocean HP +25
Rags from a Shredded Robe 14 – Held 32 40 3 Jurassic Park Raptor Nest
Bad Motivator 14 – Held 30 75 0 Mos Eisley Hit/Dam +4, HP +30