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bgneal@124
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1 """
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2 Smiley class and function.
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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 Smilify(object):
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13 """
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bgneal@128
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14 A class to "smilify" text by replacing text with either HTML img tags
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15 or markdown syntax for smiley images.
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16 """
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17 HTML = 0
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18 MARKDOWN = 1
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19
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20 def __init__(self):
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21 self.map = Smiley.objects.get_smiley_map()
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22
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23 def _convert(self, value, rep_index, autoescape=False):
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24 """
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25 Converts and returns the supplied text with either the
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26 HTML or markdown version of the smileys according to the
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27 output parameter.
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28 """
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29 if not autoescape or isinstance(value, SafeData):
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30 esc = lambda x: x
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31 else:
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32 esc = conditional_escape
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33
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34 words = value.split()
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35 for i, word in enumerate(words):
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36 if word in self.map:
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37 words[i] = self.map[word][rep_index]
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38 else:
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39 words[i] = esc(words[i])
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40 return u' '.join(words)
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41
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42 def html(self, value, autoescape=False):
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43 """
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44 Converts the supplied text by replacing the smiley codes with
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45 HTML img tags.
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46 """
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47 return self._convert(value, self.HTML, autoescape=autoescape)
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48
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49 def markdown(self, value, autoescape=False):
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50 """
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51 Converts the supplied text by replacing the smiley codes with
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52 markdown image syntax.
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53 """
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54 return self._convert(value, self.MARKDOWN, autoescape=autoescape)
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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 = Smilify()
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63 return s.html(value, autoescape=autoescape)
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64
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65
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66 def smilify_markdown(value, autoescape=False):
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67 """
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68 A convenience function to "smilify" text by replacing text with
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69 markdown syntax for the images of smilies.
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70 """
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71 s = Smilify()
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72 return s.markdown(value, autoescape=autoescape)
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