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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}";
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 == "WORD")
{
result = data_.words(
(verbly::word::forms(verbly::inflection::base) %=
(verbly::form::complexity == 1)
&& (verbly::form::length == 4)
&& (verbly::form::proper == false)
&& (verbly::pronunciation::numOfSyllables == 1))
&& !(verbly::word::usageDomains %=
(verbly::notion::wnid == 106718862))) // Blacklist ethnic slurs
.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);
}
return action;
}
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