KeyParserState.cpp

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#include <KeyParserState.hpp>
#include <boost/algorithm/string.hpp>
#include <GlobalParserState.hpp>
#include <ValueParserState.hpp>
#include <string>
#include <cctype>
 
using namespace std::literals::string_literals;
 
KeyParserState::KeyParserState(ParserContext &context, std::vector<BibElement> &result) noexcept
    : AbstractParserState{context, result} {}
 
auto KeyParserState::handleCharacter(const char c) -> ParserState * {
  if (c == '=') {
    if (key.empty()) {
      fail("Key must not be empty"s);
    } else {
      result.back().attributes.push_back({boost::trim_copy(key), ""});
      const auto valueState = new ValueParserState{context, result};
      delete this;
      return valueState;
    }
  } else if (c == '}') {
    const auto globalState = new GlobalParserState{context, result};
    delete this;
    return globalState;
  } else if (std::isgraph(c) || std::isspace(c)) {
    key += c;
  } else {
    fail("Invalid Character in Key, got so far: ["s + key + "]"s);
  }
  return this;
}