// except for apostrophe, replace punctuation by a space
// apostrophe is special: it might precede by 's, which is a suffix
void TextQuery::strip_punct(string &line)
{
for (str_size pos = 0; pos != line.size(); ++pos)
if (ispunct(line[pos])) {
if (line[pos] != '\'') line[pos] = ' ';
}
}
string TextQuery::cleanup_str(const string &word)
{
string ret;
for (auto it = word.begin(); it != word.end(); ++it)
if (!ispunct(*it))
ret += tolower(*it);
return ret;
}
string TextQuery::cleanup_str(const string &word)
{
string ret;
for (string::const_iterator it = word.begin(); it != word.end(); ++it) {
if (!ispunct(*it))
ret += tolower(*it);
}
return ret;
}