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generated by cgit-pink 1.4.1 (git 2.36.1) at 2025-09-18 20:16:08 +0000
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#include "patterner.h"
#include <fstream>
#include <stdexcept>
#include <algorithm>

patterner::patterner(
  std::string datapath,
  verbly::database& data,
  std::mt19937& rng) :
    data_(data),
    rng_(rng)
{
  std::ifstream datafile(datapath);
  if (!datafile.is_open())
  {
    throw std::invalid_argument("Could not find datafile");
  }

  bool newgroup = true;
  std::string line;
  std::list<std::string> curgroups;
  while (getline(datafile, line))
  {
    if (line.back() == '\r')
    {
      line.pop_back();
    }

    if (newgroup)
    {
      curgroups = verbly::split<std::list<std::string>>(line, ",");
      newgroup = false;
    } else {
      if (line.empty())
      {
        newgroup = true;
      } else {
        for (std::string curgroup : curgroups)
        {
          groups_[curgroup].push_back(line);
        }
      }
    }
  }
}

std::string patterner::generate()
{
  std::string action = "{MAIN}";

  verbly::filter slurBlacklist =
    (verbly::word::usageDomains %= (
      (verbly::notion::wnid == 106718862) // ethnic slur
      || (verbly::notion::wnid == 106717170) // disparagement (other slurs)
      || (verbly::notion::wnid == 107124340))); // obscenity (other profanity)

  while (action == "{MAIN}")
  {
    int tknloc;
    while ((tknloc = action.find("{")) != std::string::npos)
    {
      std::string token = action.substr(tknloc+1, action.find("}")-tknloc-1);
      std::string modifier;
      int modloc;
      if ((modloc = token.find(":")) != std::string::npos)
      {
        modifier = token.substr(modloc+1);
        token = token.substr(0, modloc);
      }

      std::string canontkn;
      std::transform(std::begin(token), std::end(token),
          std::back_inserter(canontkn), [] (char ch) {
        return std::toupper(ch);
      });

      std::string result;
      if (canontkn == "WORD2")
      {
        result = data_.words(
          (verbly::notion::partOfSpeech == verbly::part_of_speech::noun)
          && (verbly::word::forms(verbly::inflection::base) %=
            (verbly::form::complexity == 1)
              && (verbly::form::length == 4)
              && (verbly::form::proper == false)
              && (verbly::pronunciation::numOfSyllables == 1))
          && !slurBlacklist)
          .first().getBaseForm().getText();
      } else if (canontkn == "\\N")
      {
        result = "\n";
      } else {
        auto group = groups_[canontkn];
        std::uniform_int_distribution<int> groupdist(0, group.size()-1);
        int groupind = groupdist(rng_);
        result = group[groupind];
      }

      if (modifier == "indefinite")
      {
        if ((result.length() > 1) && (isupper(result[0])) && (isupper(result[1])))
        {
          result = "an " + result;
        } else if ((result[0] == 'a') || (result[0] == 'e') || (result[0] == 'i') || (result[0] == 'o') || (result[0] == 'u'))
        {
          result = "an " + result;
        } else {
          result = "a " + result;
        }
      }

      std::string finalresult;
      if (islower(token[0]))
      {
        std::transform(std::begin(result), std::end(result), std::back_inserter(finalresult), [] (char ch) {
          return std::tolower(ch);
        });
      } else if (isupper(token[0]) && !isupper(token[1]))
      {
        auto words = verbly::split<std::list<std::string>>(result, " ");
        for (auto& word : words)
        {
          if (word[0] == '{')
          {
            word[1] = std::toupper(word[1]);

            for (int k=2; k<word.length(); k++)
            {
              if (std::isalpha(word[k]))
              {
                word[k] = std::tolower(word[k]);
              }
            }
          } else {
            word[0] = std::toupper(word[0]);
          }
        }

        finalresult = verbly::implode(std::begin(words), std::end(words), " ");
      } else {
        finalresult = result;
      }

      action.replace(tknloc, action.find("}")-tknloc+1, finalresult);
    }

    std::string canonical;
    std::transform(std::begin(action), std::end(action),
      std::back_inserter(canonical), [] (char ch)
    {
      return std::tolower(ch);
    });

    std::list<std::string> words =
      verbly::split<std::list<std::string>>(canonical, " ");

    for (std::string word : words)
    {
      if (!data_.forms(
        (verbly::form::text == word)
        && slurBlacklist).all().empty())
      {
        action = "{MAIN}";
        break;
      }
    }
  }

  return action;
}