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authorShawn Rutledge <shawn.rutledge@qt.io>2019-05-20 17:40:12 +0200
committerShawn Rutledge <shawn.rutledge@qt.io>2019-06-04 08:01:34 +0200
commitb3cc9403c4f7814d3e14915fdacee42b3a805073 (patch)
tree903a727b9b78301b9ed7dd5031ac063f3483dc19 /src/gui/text/qtexthtmlparser.cpp
parent57f38bc49d43140f3b04e625a47eb1e6de8d2ae3 (diff)
QTextMarkdownWriter: write fenced code blocks with language declaration
MD4C now makes it possible to detect indented and fenced code blocks: https://github.com/mity/md4c/issues/81 Fenced code blocks have the advantages of being easier to write by hand, and having an "info string" following the opening fence, which is commonly used to declare the language. Also, the HTML parser now recognizes tags of the form <pre class="language-foo"> which is one convention for declaring the programming language (as opposed to human language, for which the lang attribute would be used): https://stackoverflow.com/questions/5134242/semantics-standards-and-using-the-lang-attribute-for-source-code-in-markup So it's possible to read HTML and write markdown without losing this information. It's also possible to read markdown with any type of code block: fenced with ``` or ~~~, or indented, and rewrite it the same way. Change-Id: I33c2bf7d7b66c8f3ba5bdd41ab32572f09349c47 Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
Diffstat (limited to 'src/gui/text/qtexthtmlparser.cpp')
-rw-r--r--src/gui/text/qtexthtmlparser.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gui/text/qtexthtmlparser.cpp b/src/gui/text/qtexthtmlparser.cpp
index 49ee6394ee..642f0893b4 100644
--- a/src/gui/text/qtexthtmlparser.cpp
+++ b/src/gui/text/qtexthtmlparser.cpp
@@ -1635,6 +1635,10 @@ void QTextHtmlParser::applyAttributes(const QStringList &attributes)
else if (key == QLatin1String("type"))
linkType = value;
break;
+ case Html_pre:
+ if (key == QLatin1String("class") && value.startsWith(QLatin1String("language-")))
+ node->blockFormat.setProperty(QTextFormat::BlockCodeLanguage, value.mid(9));
+ break;
default:
break;
}