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1 """
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2 Smiley classes and functions.
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3 """
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4 import re
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5
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6 from django.utils.safestring import SafeData
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7 from django.utils.html import conditional_escape
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8
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9 from smiley.models import Smiley
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10
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11
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12 class SmilifyHtml(object):
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13 """
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14 A class to "smilify" text by replacing text with HTML img tags for smiley
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15 images.
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16 """
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17 def __init__(self):
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18 self.map = Smiley.objects.get_smiley_map()
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19
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20 def convert(self, value, autoescape=False):
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21 """
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22 Converts and returns the supplied text with the HTML version of the
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23 smileys.
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24 """
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25 if not autoescape or isinstance(value, SafeData):
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26 esc = lambda x: x
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27 else:
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28 esc = conditional_escape
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29
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30 words = value.split()
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31 for i, word in enumerate(words):
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32 if word in self.map:
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33 words[i] = self.map[word]
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34 else:
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35 words[i] = esc(words[i])
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36 return u' '.join(words)
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37
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38
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39 class SmilifyMarkdown(object):
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40 """
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41 A class to "smilify" text by replacing text with Markdown image syntax for
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42 smiley images.
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43 """
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44 def __init__(self):
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45 self.regexes = Smiley.objects.get_smiley_regexes()
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46
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47 def convert(self, s):
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48 """
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49 Returns a string copy of the input s that has the smiley codes replaced
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50 with Markdown for smiley images.
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51 """
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52 for regex, repl in self.regexes:
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53 s = regex.sub(repl, s)
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54 return s
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55
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56
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57 def smilify_html(value, autoescape=False):
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58 """
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59 A convenience function to "smilify" text by replacing text with HTML
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60 img tags of smilies.
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61 """
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62 s = SmilifyHtml()
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63 return s.convert(value, autoescape=autoescape)
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64
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