#!/usr/bin/python

########
#
# %> ./update.py oldlecturenumber newlecturenumber
#
########

# program to update (convert) spring 2004 web pages
# to fall 2008 web pages. the steps are the following:
#
# 	--change font size from h3 to fontsize=7
#	--add fontsize=5 after the title
#	--change "Astro 6" to "Astronomy 183"
#	--change "Spring 2004" to "Fall 2008"
#	--convert old lecture number to new lecture number
#
# 
# this program takes no arguments -- it just operates on 
# every *.html file in the directory. file names are 
# unchanged (at the end).
#
# det // 2 sept 2008
#
###################################

import os,sys,string,glob

# get all html files in this directory
filelist = glob.glob('*.html')

oldlecturenumber = sys.argv[-2]
newlecturenumber = sys.argv[-1]

# loop over them
for i in filelist:
   command1  = "< %s sed 's/<h3>/<font size=\"7\">/' > dum1" % i
   command2  = "< dum1 sed 's/h3/font/' > dum2"
   command3  = "< dum2 sed 's/\/center/\/center><p><font size=\"5\"/' > dum3"
   command4  = "< dum3 sed 's/Astro 6/Astronomy 183/' > dum4"
   command5  = "< dum4 sed 's/Spring 2004/Spring 2009/' > dum5"
   command5a = "< dum5 sed 's/Spring 2009/Fall 2009/' > dum6"
   command6  = "< dum6 sed 's/Lecture %s/Lecture %s/' > %s" % (oldlecturenumber,newlecturenumber,i)
   command7 = "/bin/rm dum?"

   os.system(command1)
   os.system(command2)
   os.system(command3)
   os.system(command4)
   os.system(command5)
   os.system(command5a)
   os.system(command6)
   os.system(command7)