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