import commands, os, posix, re, warnings
from config import directory

jargon=['blog', 'pingback', 'trackback']

def spellcheck(text):

  # generate a temp file name
  warnings.filterwarnings('ignore','tmpnam')
  tmpnam = posix.tmpnam()

  # write text out to a temporary file
  tmp = open(tmpnam,'w')
  tmp.write(text.encode('ascii','replace').replace(u'’',"'"))
  tmp.close()

  # call out to aspell program
  aspell=commands.getoutput('aspell --add-extra-dicts=%s/addendum.dict -a < %s' %
    (directory.codebase,tmpnam))
  os.remove(tmpnam)

  # split out all questionable words and non-html text
  aspell=dict(re.compile('^& (\w+) \d+ \d+: (.*)',re.M).findall(aspell))

  # substitute questionable words in text with a titled span
  if aspell:
    text = re.split('(<.*?>|&.*?;)',text)
    for i in range(0,len(text),2):
      words=re.split(r'\b(\S+)\b',text[i])
      for j in range(0,len(words)):
        if words[j] in aspell:
          words[j]='<span class="spellcheck" title="%s">%s</span>' % (
           aspell[words[j]],words[j])
      text[i]=''.join(words)
    text=''.join(text)

  # return the concatenated result
  return "".join(text)

if __name__ == '__main__':
  print spellcheck('I are a good speler')