#!/usr/local/bin/python
import string, sys, os, random, time
# seed random number generator
random.seed(os.getpid() * time.time())
def pickone(choices):
"""Select a random item from a list"""
return choices[random.randrange(len(choices))].split()
def find_key(dict, wordlist):
"""Return the index of the first word in wordlist that is a key in dict"""
for i in range(len(wordlist)):
if dict.has_key(wordlist[i]):
return i
return None
def generate_phrase(words):
"""Recursively process a list of words, expanding the dictionary keys into
randomly-selected replacement phrases"""
if len(words) == 0: return []
i = find_key(repl, words)
try:
left = words[:i]
choices = repl[words[i]]
right = words[i+1:]
return left + generate_phrase(pickone(choices) + right)
except: # it didn't work
return words
def load_data(filename="/usr/home/each/python/foods"):
global sentence, repl
data = open(filename).read().splitlines()
sentence = data.pop(0)
repl = {}
for line in data:
line = line.split(":")
for i in range(len(line)):
line[i] = line[i].strip() # strip whitespace
repl[line.pop(0)] = line # store replacement phrases in dictionary
# CGI/HTML helper functions
def printContentType(type="text/html"):
print "Content-type:", type + "\n"
def printDocType(fp=sys.stdout):
fp.write('\n')
def printHeaders(title="unknown", fp=sys.stdout):
fp.write("\n")
fp.write(""+title+"\n")
fp.write("\n")
fp.write('\n')
def startList(header=None, fp=sys.stdout):
if header:
fp.write("" + header + ":
\n")
fp.write("\n")
def bulletItem(item, fp=sys.stdout):
fp.write("- " + item + "\n")
def endList(fp=sys.stdout):
fp.write("
")
def printFooter(fp=sys.stdout):
fp.write("\n")
#
# main
#
# load data file
load_data()
# generate HTML
printContentType()
printHeaders("Potluck menu")
startList("This week's potluck will feature")
for i in range(5):
food = string.join(generate_phrase(sentence.split()))
bulletItem(food[0].upper() + food[1:])
endList()
printFooter()