Files
kindle2notes/typefactory/convertmarkdown.cpp

81 lines
1.9 KiB
C++

#include "convertmarkdown.h"
#include <cerrno>
#include <cstring>
#include <fstream>
#include <iostream>
static bool markdown_needs_escape (char ch) {
switch (ch) {
case '\\':
case '`':
case '*':
case '_':
case '[':
case ']':
case '<':
case '>':
case '#':
case '!':
case '|':
return true;
default:
return false;
}
}
static std::string markdown_escape (const std::string &s) {
std::string out;
out.reserve (s.size() + s.size() / 8);
for (char ch : s) {
if (markdown_needs_escape (ch))
out.push_back ('\\');
out.push_back (ch);
}
return out;
}
bool ConverterMarkdown::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";
set_error_code (3);
return false;
}
const auto &book_titles = titles();
for (std::size_t i = 0; i < book_titles.size(); ++i) {
const auto &title = book_titles[i];
output << "# " << markdown_escape (title) << "\n\n";
for (std::size_t quote_index = 0;
quote_index < quote_count (title);
++quote_index) {
output << "## " << markdown_escape (quote_meta (title, quote_index))
<< "\n\n";
const auto &text_lines = quote_text_lines (title, quote_index);
std::size_t line_index = 0;
if (!text_lines.empty() && text_lines.front().empty())
line_index = 1;
for (; line_index < text_lines.size(); ++line_index) {
if (text_lines[line_index].empty())
output << ">\n";
else
output << "> " << markdown_escape (text_lines[line_index]) << '\n';
}
output << "\n### Notes\n\n";
}
}
set_error_code (0);
return true;
}