Add virtual converter output interface

typefactory/converter.cpp

@@ -18,49 +18,6 @@ static std::string rstrip_cr (std::string s) {
   return s;
 }
 
-static std::string latex_escape (const std::string &s) {
-  std::string out;
-  out.reserve (s.size() + s.size() / 8);
-  for (unsigned char ch : s) {
-    switch (ch) {
-      case '\\':
-        out += "\\textbackslash{}";
-        break;
-      case '{':
-        out += "\\{";
-        break;
-      case '}':
-        out += "\\}";
-        break;
-      case '%':
-        out += "\\%";
-        break;
-      case '$':
-        out += "\\$";
-        break;
-      case '#':
-        out += "\\#";
-        break;
-      case '&':
-        out += "\\&";
-        break;
-      case '_':
-        out += "\\_";
-        break;
-      case '^':
-        out += "\\textasciicircum{}";
-        break;
-      case '~':
-        out += "\\textasciitilde{}";
-        break;
-      default:
-        out.push_back (static_cast<char> (ch));
-        break;
-    }
-  }
-  return out;
-}
-
 struct Quote {
   std::string meta;
   std::vector<std::string> text_lines;
@@ -211,6 +168,30 @@ int Converter::error_code() const noexcept {
   return error_code_;
 }
 
+void Converter::set_error_code (int error_code) noexcept {
+  error_code_ = error_code;
+}
+
+const std::vector<std::string> &Converter::titles() const noexcept {
+  return impl_->context.order;
+}
+
+std::size_t Converter::quote_count (const std::string &title) const {
+  const auto it = impl_->context.by_title.find (title);
+  return it == impl_->context.by_title.end() ? 0 : it->second.size();
+}
+
+const std::string &Converter::quote_meta (const std::string &title,
+                                          std::size_t index) const {
+  return impl_->context.by_title.at (title).at (index).meta;
+}
+
+const std::vector<std::string> &Converter::quote_text_lines (
+  const std::string &title,
+  std::size_t index) const {
+  return impl_->context.by_title.at (title).at (index).text_lines;
+}
+
 bool Converter::parse() {
   std::ifstream input (input_file_name_);
   if (!input.is_open()) {
@@ -256,42 +237,3 @@ bool Converter::parse() {
   error_code_ = 0;
   return true;
 }
-
-bool Converter::save (const std::string &output_file_name) {
-  if (!parse())
-    return false;
-
-  std::ofstream output (output_file_name, std::ios::trunc);
-  if (!output.is_open()) {
-    std::cerr << "Failed to open output file: "
-              << output_file_name
-              << " (" << std::strerror (errno) << ")\n";
-    error_code_ = 3;
-    return false;
-  }
-
-  const ParseContext &ctx = impl_->context;
-  for (std::size_t i = 0; i < ctx.order.size(); ++i) {
-    const auto &title = ctx.order[i];
-    output << "\\section {" << latex_escape (title) << "}\n";
-
-    const auto it = ctx.by_title.find (title);
-    if (it == ctx.by_title.end())
-      continue;
-
-    for (const auto &quote : it->second) {
-      output << "  \\subsection {" << latex_escape (quote.meta) << "}\n";
-
-      for (const auto &text_line : quote.text_lines)
-        output << "    " << latex_escape (text_line) << "\n";
-
-      output << "      \\subsubsection{notes}\n\n";
-    }
-
-    if (i + 1 < ctx.order.size())
-      output << "\n";
-  }
-
-  error_code_ = 0;
-  return true;
-}