QString HoedownMarkdownConverter::renderAsHtml(MarkdownDocument *document)
{
QString html;
if (document) {
HoedownMarkdownDocument *doc = dynamic_cast<HoedownMarkdownDocument*>(document);
if (doc->document()) {
hoedown_buffer *in = doc->document();
hoedown_buffer *out = hoedown_buffer_new(64);
hoedown_renderer *renderer = hoedown_html_renderer_new(0, 16);
hoedown_markdown *markdown = hoedown_markdown_new(doc->options(), 16, renderer);
hoedown_markdown_render(out, in->data, in->size, markdown);
hoedown_markdown_free(markdown);
hoedown_html_renderer_free(renderer);
html = QString::fromUtf8(hoedown_buffer_cstr(out));
hoedown_buffer_free(out);
}
}
return html;
}
char*
OxMarkDownToHtml(char* sMarkDown)
{
hoedown_renderer *renderer;
hoedown_document *document;
hoedown_buffer *buffer;
unsigned int extensions = 0, render_flags = 0;
const uint8_t *sHtml;
renderer = hoedown_html_renderer_new(render_flags, 0);
document = hoedown_document_new(renderer, extensions, 16);
buffer = hoedown_buffer_new(16);
hoedown_document_render(document, buffer, (const uint8_t *)sMarkDown, strlen(sMarkDown));
sHtml = (char*)OxAllocate(buffer->size + 1);
StringCchCopyA(sHtml, buffer->size + 1, buffer->data);
hoedown_buffer_reset(buffer);
hoedown_html_smartypants(buffer, sHtml, buffer->size);
hoedown_buffer_free(buffer);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
return sHtml;
}
void mdRenderer::render(const QString markdownText)
{
if(markdownText.isEmpty())
{
html ="";
return;
}
QByteArray utf8Data = markdownText.toUtf8();
hoedown_buffer *doc = hoedown_buffer_new(utf8Data.length());
hoedown_buffer_puts(doc, utf8Data.data());
hoedown_buffer *out = hoedown_buffer_new(64);
hoedown_renderer *renderer = hoedown_html_renderer_new(0, 16);
hoedown_markdown *markdown = hoedown_markdown_new(0, 16, renderer);
hoedown_markdown_render(out, doc->data, doc->size, markdown);
hoedown_markdown_free(markdown);
hoedown_html_renderer_free(renderer);
html = QString::fromUtf8(hoedown_buffer_cstr(out));
hoedown_buffer_free(out);
html="<!DOCTYPE html> <html> <head> <style type=\"text/css\">"+
style+
"</style>"+
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">"+
"</head> <body>"+
html+
"</body> </html>";
}
// Converts markdown to html
QString
Markdown::convert2html(const QString& markdown)
{
QString html;
if ( !markdown.isEmpty() ) {
QString markdownClean = parseCustomLinksForHTML(markdown);
hoedown_html_flags flags = HOEDOWN_HTML_USE_XHTML;
hoedown_extensions extensions = (hoedown_extensions)(HOEDOWN_EXT_BLOCK|HOEDOWN_EXT_SPAN|HOEDOWN_EXT_FLAGS);
size_t max_nesting = 16;
hoedown_renderer *renderer = hoedown_html_renderer_new(flags, 0);
hoedown_document *document = hoedown_document_new(renderer, extensions, max_nesting);
hoedown_buffer *result = hoedown_buffer_new(max_nesting);
std::string markdownStr = markdownClean.toStdString();
hoedown_document_render( document, result, reinterpret_cast<const uint8_t*>(&markdownStr[0]), markdownStr.size() );
std::ostringstream convert;
for (size_t x = 0; x < result->size; x++) {
convert << result->data[x];
}
html = QString::fromStdString( convert.str() );
hoedown_buffer_free(result);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
}
return html;
}
//
// return html rendered markdown of note text
//
QString Note::toMarkdownHtml() {
hoedown_renderer *renderer = hoedown_html_renderer_new( HOEDOWN_HTML_USE_XHTML, 16 );
hoedown_document *document = hoedown_document_new(renderer, (hoedown_extensions) HOEDOWN_EXT_SPAN, 16);
QString str = this->noteText;
unsigned char *sequence = (unsigned char*)qstrdup( str.toUtf8().constData() );
int length = strlen( (char*) sequence );
// return an empty string if the note is empty
if ( length == 0 )
{
return "";
}
hoedown_buffer *html = hoedown_buffer_new( length );
// render markdown html
hoedown_document_render( document, html, sequence, length );
// get markdown html
QString result = QString::fromUtf8( (char*) html->data, html->size );
/* Cleanup */
free(sequence);
hoedown_buffer_free(html);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
return result;
}
QByteArray HoedownMarkdownConverterPrivate::markdown2Html(const QByteArray &markdownText) const {
int markdownLength = markdownText.size();
if(markdownLength == 0) {
return QByteArray("");
}
hoedown_buffer *ib, *ob;
hoedown_renderer *renderer = NULL;
hoedown_document *document;
// malloc
ob = hoedown_buffer_new(markdownLength);
ib = hoedown_buffer_new(markdownLength);
renderer = hoedown_html_renderer_new(HOEDOWN_HTML_USE_XHTML, 0);
/*
typedef enum hoedown_extensions {
// block-level extensions
HOEDOWN_EXT_TABLES = (1 << 0),
HOEDOWN_EXT_FENCED_CODE = (1 << 1),
HOEDOWN_EXT_FOOTNOTES = (1 << 2),
// span-level extensions
HOEDOWN_EXT_AUTOLINK = (1 << 3),
HOEDOWN_EXT_STRIKETHROUGH = (1 << 4),
HOEDOWN_EXT_UNDERLINE = (1 << 5),
HOEDOWN_EXT_HIGHLIGHT = (1 << 6),
HOEDOWN_EXT_QUOTE = (1 << 7),
HOEDOWN_EXT_SUPERSCRIPT = (1 << 8),
HOEDOWN_EXT_MATH = (1 << 9),
// other flags
HOEDOWN_EXT_NO_INTRA_EMPHASIS = (1 << 11),
HOEDOWN_EXT_SPACE_HEADERS = (1 << 12),
HOEDOWN_EXT_MATH_EXPLICIT = (1 << 13),
// negative flags
HOEDOWN_EXT_DISABLE_INDENTED_CODE = (1 << 14)
} hoedown_extensions;
*/
// 尽可能的指定
document = hoedown_document_new(renderer, HOEDOWN_EXT_TABLES, 16);
// put data
hoedown_buffer_put(ib, (const uint8_t *) markdownText.toStdString().c_str(), markdownText.size());
// render markdown to html
hoedown_document_render(document, ob, ib->data, ib->size);
QByteArray html((const char*)ob->data, ob->size);
// free
hoedown_buffer_free(ib);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
hoedown_buffer_free(ob);
return html;
}
/**
* @brief Returns html rendered markdown of the note text
* @param notesPath for transforming relative local urls to absolute ones
* @param maxImageWidth defined maximum image width (ignored if forExport is true)
* @param forExport defines whether the export or preview stylesheet
* @return
*/
QString Note::toMarkdownHtml(QString notesPath, int maxImageWidth, bool forExport) {
hoedown_renderer *renderer =
hoedown_html_renderer_new(HOEDOWN_HTML_USE_XHTML, 16);
hoedown_extensions extensions =
(hoedown_extensions) (HOEDOWN_EXT_BLOCK | HOEDOWN_EXT_SPAN);
hoedown_document *document = hoedown_document_new(renderer, extensions, 16);
// get the decrypted note text (or the normal note text if there isn't any)
QString str = getDecryptedNoteText();
QString windowsSlash = "";
#ifdef Q_OS_WIN32
// we need an other slash for Windows
windowsSlash = "/";
#endif
// parse for relative file urls and make them absolute
// (for example to show images under the note path)
str.replace(
QRegularExpression("\\(file:\\/\\/([^\\/].+)\\)"),
"(file://" + windowsSlash + notesPath + "/\\1)");
unsigned char *sequence = (unsigned char *) qstrdup(
str.toUtf8().constData());
qint64 length = strlen((char *) sequence);
// return an empty string if the note is empty
if (length == 0) {
return "";
}
hoedown_buffer *html = hoedown_buffer_new(length);
// render markdown html
hoedown_document_render(document, html, sequence, length);
// get markdown html
QString result = QString::fromUtf8((char *) html->data, html->size);
/* Cleanup */
free(sequence);
hoedown_buffer_free(html);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
QSettings(settings);
QString fontString = settings.value("MainWindow/noteTextView.code.font")
.toString();
// set the stylesheet for the <code> blocks
QString codeStyleSheet = "";
if (fontString != "") {
// set the note text view font
QFont font;
font.fromString(fontString);
// add the font for the code block
codeStyleSheet = QString(
"pre, code { %1; }").arg(encodeCssFont(font));
}
bool darkModeColors = settings.value("darkModeColors").toBool();
QString codeBackgroundColor = darkModeColors ? "#444444" : "#f1f1f1";
// do some more code formatting
codeStyleSheet += QString(
"pre, code { padding: 16px; overflow: auto;"
" line-height: 1.45em; background-color: %1;"
" border-radius: 3px; }").arg(codeBackgroundColor);
// remove double code blocks
result.replace("<pre><code>", "<pre>")
.replace("</code></pre>", "</pre>");
if (forExport) {
// get defined body font from settings
QString bodyfontString = settings.value("MainWindow/noteTextView.font")
.toString();
// create export stylesheet
QString exportStyleSheet = "";
if (bodyfontString != "") {
QFont bodyFont;
bodyFont.fromString(bodyfontString);
exportStyleSheet = QString(
"body { %1; }").arg(encodeCssFont(bodyFont));
}
result = QString("<html><head><meta charset=\"utf-8\"/><style>"
"h1 { margin: 5px 0 20px 0; }"
"h2, h3 { margin: 10px 0 15px 0; }"
"img { max-width: 100%; }"
"a { color: #FF9137; text-decoration: none; } %1 %2"
"</style></head><body>%3</body></html>")
.arg(codeStyleSheet, exportStyleSheet, result);
} else {
// for preview
result = QString("<html><head><style>"
"h1 { margin: 5px 0 20px 0; }"
"h2, h3 { margin: 10px 0 15px 0; }"
"a { color: #FF9137; text-decoration: none; } %1"
"</style></head><body>%2</body></html>")
.arg(codeStyleSheet, result);
}
// check if width of embedded local images is too high
QRegularExpression re("<img src=\"file:\\/\\/([^\"]+)\"");
QRegularExpressionMatchIterator i = re.globalMatch(result);
while (i.hasNext()) {
QRegularExpressionMatch match = i.next();
QString fileName = match.captured(1);
#ifdef Q_OS_WIN
// remove the leading slash under Windows to get a more correct filename
QImage image(Utils::Misc::removeIfStartsWith(fileName, "/"));
#else
QImage image(fileName);
#endif
if (forExport) {
result.replace(
QRegularExpression("<img src=\"file:\\/\\/" +
QRegularExpression::escape(fileName) +
"\""),
QString("<img src=\"file://%2\"").arg(fileName));
} else {
// for preview
// cap the image width at 980px or the note text view width
if (image.width() > maxImageWidth) {
result.replace(
QRegularExpression("<img src=\"file:\\/\\/" +
QRegularExpression::escape(fileName) +
"\""),
QString("<img width=\"%1\" src=\"file://%2\"").arg(
QString::number(maxImageWidth), fileName));
}
}
}
// check if there is a script that wants to modify the content
QString scriptResult = ScriptingService::instance()
->callNoteToMarkdownHtmlHook(this, result);
if (!scriptResult.isEmpty()) {
result = scriptResult;
}
return result;
}
/**
* @brief Returns html rendered markdown of the note text
* @param notesPath for transforming relative local urls to absolute ones
* @return
*/
QString Note::toMarkdownHtml(QString notesPath) {
hoedown_renderer *renderer =
hoedown_html_renderer_new(HOEDOWN_HTML_USE_XHTML, 16);
hoedown_extensions extensions =
(hoedown_extensions) (HOEDOWN_EXT_BLOCK | HOEDOWN_EXT_SPAN);
hoedown_document *document = hoedown_document_new(renderer, extensions, 16);
// get the decrypted note text (or the normal note text if there isn't any)
QString str = getDecryptedNoteText();
QString windowsSlash = "";
#ifdef Q_OS_WIN32
// we need an other slash for Windows
windowsSlash = "/";
#endif
// parse for relative file urls and make them absolute
// (for example to show images under the note path)
str.replace(
QRegularExpression("\\(file:\\/\\/([^\\/].+)\\)"),
"(file://" + windowsSlash + notesPath + "/\\1)");
unsigned char *sequence = (unsigned char *) qstrdup(
str.toUtf8().constData());
qint64 length = strlen((char *) sequence);
// return an empty string if the note is empty
if (length == 0) {
return "";
}
hoedown_buffer *html = hoedown_buffer_new(length);
// render markdown html
hoedown_document_render(document, html, sequence, length);
// get markdown html
QString result = QString::fromUtf8((char *) html->data, html->size);
/* Cleanup */
free(sequence);
hoedown_buffer_free(html);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
QSettings(settings);
QString fontString = settings.value("MainWindow/noteTextView.code.font")
.toString();
// set the stylesheet for the <code> blocks
QString codeStyleSheet = "";
if (fontString != "") {
// set the note text view font
QFont font;
font.fromString(fontString);
codeStyleSheet = "pre, code {" + encodeCssFont(font) + "}";
}
result = "<html><head>"
"<style>h1, h2, h3 { margin: 5pt 0 10pt 0; }"
"a { color: #FF9137; text-decoration: none; }" +
codeStyleSheet + "</style></head><body>" +
result + "</body></html>";
// check if width of embedded local images is too high
QRegularExpression re("<img src=\"file:\\/\\/([^\"]+)\"");
QRegularExpressionMatchIterator i = re.globalMatch(result);
while (i.hasNext()) {
QRegularExpressionMatch match = i.next();
QString fileName = match.captured(1);
QImage image(fileName);
// cap the image width at 980px
if (image.width() > 980) {
result.replace(
QRegularExpression("<img src=\"file:\\/\\/" +
QRegularExpression::escape(fileName) +
"\""),
"<img width=\"980\" src=\"file://" + fileName + "\"");
}
}
return result;
}
/**
* @brief Returns html rendered markdown of the note text
* @param notesPath for transforming relative local urls to absolute ones
* @return
*/
QString Note::toMarkdownHtml(QString notesPath) {
hoedown_renderer *renderer =
hoedown_html_renderer_new(HOEDOWN_HTML_USE_XHTML, 16);
hoedown_extensions extensions =
(hoedown_extensions) (HOEDOWN_EXT_BLOCK | HOEDOWN_EXT_SPAN);
hoedown_document *document = hoedown_document_new(renderer, extensions, 16);
// get the decrypted note text (or the normal note text if there isn't any)
QString str = getDecryptedNoteText();
// parse for relative file urls and make them absolute
// (for example to show images under the note path)
str.replace(
QRegularExpression("\\(file:\\/\\/([^\\/].+)\\)"),
"(file://" + notesPath + "/\\1)");
unsigned char *sequence = (unsigned char *) qstrdup(str.toUtf8().constData());
int length = strlen((char *) sequence);
// return an empty string if the note is empty
if (length == 0) {
return "";
}
hoedown_buffer *html = hoedown_buffer_new(length);
// render markdown html
hoedown_document_render(document, html, sequence, length);
// get markdown html
QString result = QString::fromUtf8((char *) html->data, html->size);
/* Cleanup */
free(sequence);
hoedown_buffer_free(html);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
result =
"<html><head><style>h1, h2, h3 { margin: 5pt 0 10pt 0; }"
"a { color: #FF9137; text-decoration: none; }</style></head><body>" +
result + "</body></html>";
// check if width of embedded local images is too high
QRegularExpression re("<img src=\"file:\\/\\/([^\"]+)\"");
QRegularExpressionMatchIterator i = re.globalMatch(result);
while (i.hasNext()) {
QRegularExpressionMatch match = i.next();
QString fileName = match.captured(1);
QImage image(fileName);
// cap the image width at 980px
if (image.width() > 980) {
result.replace(
QRegularExpression("<img src=\"file:\\/\\/" + QRegularExpression::escape(fileName) + "\""),
"<img width=\"980\" src=\"file://" + fileName + "\"");
}
}
return result;
}
