Use language name to get code coloring

In a `\code` or `~~~` or ` ``` ` environment we can define the language of a code block by specifying an extension.
In markdown we see quite often the language name as code block name (especially for `python`)
One can specify it by means of an `EXTENSION_MAPPING` but this is quite unnatural as it it not an extension.

- see to it that the extension (and thus `EXTENSION_MAPPING`) still has precedence
- in case not a known extension, try the language names.

Note: with docbook the explicit name usage was missing.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mandocvisitor.cpp b/src/mandocvisitor.cpp
index 875cd14..95d15f8 100644
--- a/src/mandocvisitor.cpp
+++ b/src/mandocvisitor.cpp
@@ -195,10 +195,10 @@ void ManDocVisitor::visit(DocVerbatim *s)
   {
     lang = s->language();
   }
-  SrcLangExt langExt = getLanguageFromFileName(lang);
+  SrcLangExt langExt = getLanguageFromCodeLang(lang);
   switch (s->type())
   {
-    case DocVerbatim::Code: // fall though
+    case DocVerbatim::Code:
       if (!m_firstCol) m_t << endl;
       m_t << ".PP" << endl;
       m_t << ".nf" << endl;