## FILE: html_tag_cloud.py
## AUTHOR: Eugene Wallingford
## DATE: 2014/12/06
## COMMENT: These utility functions can be used to create tag clouds.
## at different average paces
##
## HISTORY: These functions originally appear in The Programming Historian
## http://niche.uwo.ca/programming-historian/index.php/Tag_clouds
##
## They were adapted by the authors of our text, The Practice of
## Computing Using Python, primarily to update them to Python 3.
##
## I modified them for naming convention, consistency, and
## personal style.
##
## USAGE: See a sample usage at the bottom. If you un-comment that code,
## it uses each of the functions to take a dictionary of word/count
## and produce a web page with a tag cloud.
import string
import datetime
HTML_BIG = 96 # the largest font size produced
HTML_LITTLE = 14 # the smallest font size produced
def make_html_word(word, count, high, low):
'''Make an HTML tag containing the word with a font size determined
by the word count. The font size is scaled between HTML_BIG and
HTML_LITTLE. high and low represent the highest and lowest
word counts in the document.
'''
ratio = (count-low) / float(high-low)
fontsize = (ratio * HTML_BIG) + ((1-ratio) * HTML_LITTLE)
fontsize = int(fontsize)
word_str = '%s '
return word_str % (str(fontsize), word)
def make_html_box(body):
'''Make an HTML tag containing a string in a box.
'''
box_str = '''%s
'''
return box_str % (body)
def print_html_file(body, title):
'''Create a standard HTML page with titles, header, and metadata.
The page is written to a file named is [ title.html ].
'''
template = '''
%s
%s
%s
Last modified: %s
'''
filename = title+'.html'
time_now = datetime.datetime.now().ctime()
the_str = template % (title, title, body, time_now)
output = open(filename, 'w')
output.write(the_str)
output.close()
# Sample usage
#
#pairs = [('hi', 5), ('there', 6), ('mom', 10), ('fred', 2), ('bill' ,20)]
#high_count = 20
#low_count = 2
#body = ''
#
#for word, count in pairs:
# body = body + make_html_word(word, count, high_count, low_count)
#
#box = make_html_box(body)
#print_html_file(box, 'test_file')